Wastewater Treatment Pond Systems An Australian Experience
|
|
- Carmel Simon
- 6 years ago
- Views:
Transcription
1 Paper Number: 082, Stream Theme WWSP Wastewater Treatment Pond Systems An Australian Experience Mitchell Laginestra, GHD, Robbert van Oorschot, GHD, robbert_van KEYWORDS Lagoon wastewater treatment, anaerobic pond, facultative pond, aerated pond ABSTRACT Wastewater treatment through lagoon based systems to undertake reduction of BOD and other contaminants essentially encapsulates natural systems yet in a controlled manner. Although taking a much larger footprint than mechanical / constructed bioreactor systems, they have specific uses, are considered sustainable, provide reasonable treatment and are generally prevalent in rural applications. They play a particular role in treatment of intensive agricultural industry wastewater, but are also used for treatment of municipal sewage. Performance of lagoon based systems is varied and is dependent on a range of factors:» Type of pond (anaerobic, facultative, aerobic, aerated, maturation)» Loading and wastewater characteristics» Climate» Arrangement. In addition, based on loading and general performance, odours can be a significant issue, and presents a challenge to operators of pond systems, particularly with encroachment of residential and semi rural communities (into previously industrial or non permanent inhabited areas). This paper outlines issues, applications and maintenance requirements for ponds, and makes some suggested design improvements and looks at general design and operational aspects based on actual pond performance. INTRODUCTION Ponds are used to treat municipal and industrial wastewaters in a variety of applications around Australia. The main advantage of these type of systems is their simplicity to build and operate, although their non mechanical aspect means a greater volume (and subsequently area / footprint) is required to treat wastewater than conventional treatment systems. Their ability to achieve significant reductions of contaminants is attributed to their diverse biology and incorporation of aspects of conventional treatment including biochemical reactions, settlement of solids, and disinfection. Different types of ponds serve different purposes, and the range of operating parameters distinguishes the type and performance. Ponds are distinguished largely by the dissolved oxygen (DO) of the layers within the ponds, which in turn, is dependent on the loading of the pond system. Pond types include:» Anaerobic ponds, which are designed to cater for high organic loading, and are typically absent of DO and contain no significant algal population. They typically involve long detention times and are deeper than other ponds due to the need to exclude oxygen;» Facultative ponds, which incorporate two different operating modes, aerobic at the surface and, with the settlement of sludge, anaerobic at the base of the pond. These ponds are typically shallower than anaerobic ponds.» Aerobic ponds, which are shallow to allow algal development and receive lower solids / BOD loading.
2 » / Oxidation ponds, which essentially are used for polishing of effluent, and are shallow to allow for ultraviolet light penetration and subsequent disinfection. There are also mechanically aerated ponds, which can be deeper than naturally aerobic ponds, since the aeration will reach the lower layers. Evaporation ponds are also employed where effluent may be problematic to dispose of, for example with high salinity. Theses are typically very shallow (less than 1.5 m) with volumetric requirements being dependent on environmental factors (temperature, humidity and rainfall). Pond systems typically comprise a treatment train, which involves a series of ponds anaerobic / facultative, aerobic / maturation to achieve BOD reduction, (perhaps nutrient reduction) and pathogen reduction prior to transfer to the environment (irrigation re use or disposal to receiving waters). The appropriate treatment train / series is dependent on loading. In addition, it is possible to overcome shortcomings of ponds oxidation capacity by installation of mechanical aeration which helps in DO as well as mixing ability / prevention of short circuiting. A key aspect in considering ponds for treatment of wastewater is that, despite the significant footprint, they are regarded as a sustainable technology. Pond systems offer:» Low energy consumption compared to more conventional systems;» Oxygenation of the upper water layer via movement of air and natural wave action;» Solar / powered aeration via algal respiration;» Natural ph buffering via carbonate / bicarbonate system;» Natural nutrient uptake and reduction» Solar induced disinfection; and» Biogas generation from anaerobic ponds (where they are covered and gas collected). The disadvantage of pond systems is the inability to significantly remove nutrients. However, some reduction over ponds is well documented and is believed to be associated with volatilisation of ammonia, algal assimilation in biomass, and possibly biological nitrification / denitrification. Nitrification can occur intermittently and can be unpredictable for long lengths of time (particularly during cold periods), and is often attributed to variable oxygen levels, temperature and ph (and likely low numbers of nitrifying bacteria). However, nitrification / denitrification is thought to be a major N removal path in facultative ponds during periods of high algae abundance. The high photosynthetic activity probably raises DO and ph. Denitrification is likely to occur at the lower depths of facultative ponds. Phosphorus uptake is also reported via algae assimilation and precipitation with metal salts. Removal efficiencies of up to % N and % P have been reported in facultative lagoons, (Shilton, 2005). Lower reduction efficiencies are reported in maturation ponds.. Release of nutrients from decomposition of accumulated sludge and resolubilisation form sediments sediment can reduce the overall efficiency of nutrient removal. FACTORS INFLUENCING PERFORMANCE OF PONDS Key design criteria for pond based systems typically consists of organic loading rate (areal and volumetric, dependent on the type of pond) and detention time. There are also a number of key physical design features, which can affect performance:» Depth (which needs to suit the operating conditions for the pond);» Shape and layout arrangement (length to width and inlet / outlet orientation) which dictate plug flow treatment to avoid short circuiting)» Wastewater characteristics» Sludge accumulation (period between clean out) and» Environmental factors (temperature, sunlight, rainfall and wind velocity) Any design for treatment of wastewater needs to take into account the local site specific factors. As with any treatment process system, ponds are affected by changing conditions
3 and success of treatment performance is dependent on enabling development of suitable biological conditions and contact with the contaminants contained in the wastewater. The reported main typical issues for ponds include:» Lack of mixing;» Sludge accumulation or sludge rafting;» Advent of dead zones, which can lead to short circuiting;» Screenings and grease accumulation;» Excessive algae (minimising disinfection ability);» Apparent Increase in solids over ponds either due to significant algal solids or sludge accumulation and release with changing localised velocities or incorporation of mechanical aeration;» Construction issues seepage or leakage development if liner is not properly installed / compacted or poor choice of materials or rupture. REVIEW OF POND SYSTEMS General Table 2 below presents some operating performance indicators and key criteria for a few operating ponds both municipal and industrial applications. However, firstly, we have considered what expectations there are of pond performance and Table 1 presents a short review (from Shilton, 2005) of typical design equations for ponds. For performance of wastewater stabilisation ponds, literature and general experience indicates:» BOD reduction of 50 up to 90 % for anaerobic ponds is possible (but is dependent on loading, recirculation, and noting that anaerobic ponds are typically used to treat high BOD wastes, > 2000 mg/l). Typically no nutrient and limited solids reduction is expected from anaerobic ponds;» BOD reduction between 70 and 85% across facultative and aerobic ponds may be achieved (including mechanically aerated ponds);» Effluent suspended solids mg/l is achievable from facultative ponds;» BOD reduction between 60 and 80% across aerobic maturation ponds may be achieved» Effluent suspended solids mg/l from aerobic maturation ponds may be achieved. Table 1 Pond Design Equations Loading Equation Parameters Criteria / Conditions Anaerobic lagoons Volumetric loading rate (kg/m 3.d), λ V = X i Q / 1000 V facultative lagoons Surface loading rate (kg/ha.d), λ s = 350 ( T) T 25 maturation ponds Surface loading rate (kg/ha.d), λ s = X i D / 100 θ Xi = influent BOD, mg/l Q = influent flow m 3 /d V = lagoon volume, m 3 T = air temperature of coldest month D = depth, θ = detention time λ V = 0.1 (for T < 10), λ V = 0.1 (20T 100) (for T=10 20), λ V = 0.1(10T+100) (for T=20 25), λ V = 0.35 (for T >25) λ S = 80 (for T < 8), λ S = 350 (T > 25) θ pond 1 = 3 5 (for T > 10) but typically to achieve disinfection Pond Case Studies A number of random pond systems have been reviewed and are summarised in the table below.
4 Effluent disposal from each of the pond systems is via a range of avenues, including surface waters, general re use, sewer discharge and agricultural application. Table 2 Pond Performance Review WWTP Climate Type of pond Municipal WWTP s Alice Springs Arid (different pond sets) Facultative Facultative Berrimah Tropical Facultative Katherine Hot Facultative Mount Barker (prior to upgrade) Mild Facultative, with supplemental aeration Current loading 137 kg/ha.d 39 kg/ha.d 87 kg/ha.d 36 kg/ha.d HRT, kg/ha.d kg/ha.d, kg/ha.d kg/ha.d, kg/ha.d 20 Performance BOD / TN / TP % reduction 63, 0, 33 40, 20, 35 44, 0, 0 14, 26, 3 86, 64, 65 SS in effluent / algae induced or not 97, no 85, yes 108, no 73 mg/l yes 238 (no) 53, 50, (yes) mg/l 79, 40, mg/l (no) 0, 30, (yes) mg/l 79, 30, mg/l (yes) Pond No. and suggested loading based on Temp Multiple (150 kg/ha.d) Multiple (150 kg/ha.d) (300 kg/ha.d) Multiple (350 kg/ha.d) (but baffled) (200 kg/ha.d) Namatjira Warm, dry Facultative 16 kg/ha.d , 70, , yes (45 kg/ha.d) Palmerston Tropical Facultative 99 kg/ha.d 86 kg/ha.d 38, 13 65, 60, 15 27, 0, 2 150, no 120, yes (300 kg/ha.d) Multiple Penola Mild Facultative 16 kg/ha.d 90 88, 39, 9 50, yes (20 kg/ha.d) Industrial WWTP s Poultry Hot, Anaerobic d 79, 25, humid (covered) kg/m 3.d mg/l, no (0.05 kg/m 3.d) Winery Mild Aerated 65 d 90, 75, mg/l during vintage 85 d 50, 10, 50 Meat processing Mild / temperate (supplementary aeration) Anaerobic (uncovered) Aerated 0.09 kg BOD/m 3.d) 260 kg BOD/ha.d vintage 0.15 kg BOD/m 3.d 0.19 kg BOD/m 3.d) , 3, 5 79, 4, mg/l yes 840 mg/l, no 500 mg/l, yes (0.1 kg/m 3.d) (200 kg/ha.d) (0.05 kg/m 3.d)) (0.1 kg/m 3.d) Review In reviewing the performance of the above ponds, the following observations are made:» Facultative and ponds are all m deep,» Anaerobic ponds were 3 5 m deep,» Mechanically aerated ponds were typically 3 m deep,» The municipal plants all less than 50,000 equivalent population loading,» Areal organic loading, while obviously a good indicator, does not necessarily provide good indication of performance in general without considering the other factors such as arrangement,» Multiple ponds seemingly provide enhanced performance
5 » Sludge accumulation and localised velocities (as well as mechanical aeration) can result in high solids throughput to other lagoons,» Some nutrient reduction is possible with lagoons, although this is considered to be not consistent,» Of the industrial treatment ponds anaerobic treatment can provide good reduction provided sufficient detention is integrated into the design,» Mechanical aeration is appropriate to reduce BOD and area (i.e., can enable greater areal loading),» Nearly all lagoons involve very little operation / maintenance (and some seemingly suffer from that including infrequent desludging),» Some ponds exhibit no reduction in some contaminants (an increase is occasionally indicated), which may be due to sampling inconsistencies, but more likely to be associated with sludge accumulation and washout as well as algal solids. The latter is particularly the case with municipal ponds (high availability of nutrients) and algae in the final pond is considered to be a significant issue. POND OPERATION Ponds do require some operational control, and monitoring is needed to assess performance, which helps to indicate, in conjunction with visual observations, when cleaning is required. Sludge accumulation / rafting can lead to odour generation, and this is common with ponds from time to time. Remoteness from residential receptors is no guarantee of odour free operation. High loading can accelerate a pond to this condition, and holiday peak loading or operation during high production for industrial facilities are common issues, which an operator must deal with. Vigilance in seepage or overflows (as a result of pipe blockages) must also be checked on a regular basis. DESIGN OF PONDS Design Criteria In reviewing the performance of ponds in general, provided loading is not excessive, BOD reduction is considered reasonable. Nutrient reduction is also possible, but is generally regarded to be inconsistent. The SS from the pond effluent is highly variable, and generally impacted by algal solids or sporadic release of accumulated solids (which demonstrates that, despite general operator perceptions, ponds do need regular desludging). Some possible loading criteria based on this review are outlined below. Table 3 Suggested Loading Criteria for Municipal Ponds Environmental Surface loading Detention time () conditions (kg BOD /ha/d) Facultative ponds Cold seasonal climate Temperate to warm Hot / Tropical ponds Cold seasonal climate Temperate to warm Hot / Tropical Table 4 Suggested Loading Criteria for Industrial Ponds Environmental Organic Loading Detention time () conditions (kg BOD / m 3. d) Anaerobic Ponds Cold seasonal climate Temperate to warm
6 Environmental Organic Loading Detention time () conditions (kg BOD / m 3. d) Aerated ponds Cold seasonal climate Temperate to warm As noted above, meeting the above loading does not necessarily guarantee a success in performance. Rather the loading in conjunction with arrangement and condition of the pond will provide an indicator of expectation for effluent quality. General design features and suggested arrangements gleaned from existing installations and sourced from the references listed at the end of this paper are summarised in the section below. Key design features The final arrangement of ponds in treating wastewater, will, to a large extent, be site specific. This is particularly relevant for environmental factors and wastewater characterisation, but also relates to soil type (which impacts on liner design, and suitability of irrigation), and arrangement of pond layout. There are, however, basic design aspects, which should be take into account to maximise performance. Some of these features may be retrofitted to existing lagoons, but in the main, it is important to integrate good design at the start. Key design features include:» length to breadth ratio (usually a minimum of 2 :1, but can incorporate baffles for facultative / aerobic to have greater ratios: 3 5 :1).» Enhanced inlet / outlet arrangements (inlet diffuser or horizontal pipe) located outlet out of zone that is main flow path or incorporating baffles / flow deflectors» slope of embankments (3:1 internal; and 2:1 external dependent on soil)» Minimum of 500 mm freeboard.» Depths: Anaerobic ponds min depth = 3 > 5 m Aerated ponds min depth = 3 m ponds depth = 1 2 m.» liner material is always required, either but compacted clay of minimum depth 0.3 m or polyethylene / geotextile with properly prepared underlay.» multiple ponds are likely to provide improved effluent quality through minimising short circuiting.» Covering of anaerobic ponds not only provides opportunity for odour control and gas collection (with subsequent use of biogas) but also improves operating by reducing air impact. Need for Preliminary Treatment Hardly any pond systems in Australia incorporate preliminary treatment, apart from the septic effluent collection / drainage schemes, which rely on the septic tank installation at individual houses to remove screenings and grit. Of the ponds reviewed in Table 2, only 2 of the industrial applications incorporated screening. The lack of preliminary treatment has resulted in a number of issues at pond systems notably the appearance of screenings in accumulated sludge mats, and discharge of offensive material to the environment. Figure 1 illustrates some of the issues associated with lack of screening, and the need for regular cleanout of lagoons. Dependent on location (and catchment area) grit can be an issue accumulating adjacent to inlet points and reducing detention time.
7 Figure 1 Screenings accumulation in sludge mat in a facultative pond It is considered that as a minimum, screening should be implemented prior to treatment by pond systems. Uprating of Pond Capacity by Implementation of Changes Upgrading of existing ponds is often not easy (unless they are extended) and implementation of baffling or inlet / outlet modifications can involve complete emptying. Improvements (if deemed required) such as baffling, recirculation, screening and programmed desludging would not be regarded as providing increased capacity for ponds in terms of capacity, but would rather be expected to marginally improve contaminant reduction performance. Desludging is required to remove accumulated solids, while this may not extend the theoretical organic loading capacity, it will potentially increase hydraulic capacity by enabling a greater actual detention time (more volume is available which will theoretically allow greater storage and treatment of the sewage). However, short circuiting can impact on this, and it may mean that desludging will have a lesser effect than theoretical. Aerobic ponds will, however, benefit from having mechanical aeration. So, any shortfall in detention or organic treatment capability may be overcome through providing increased oxygenation capacity. This may be readily accessible, since an aspirator system can be readily installed on floating pontoons and tied via cables and anchored. The are however tow considerations which need to be taken into account with this:» Embankment walls of ponds may require stabilisation (rocks, tyres may be used),» air stream should be angled to avoid impingement of the base of shallow pondage. In calculating the required aeration for aerobic ponds, the oxygen requirements from the BOD loading needs to be taken into account, but there also needs to be an assessment of the ability of pond to provide oxygenation via natural processes (this will involve a review of the extent of loading). For complete mix aerated ponds, the BOD will dictate the actual oxygenation required. Other upgrading of pond systems may involve post treatment, for example, Mount Barker ponds are followed by dissolved air flotation (DAF) and microfiltration systems, prior to discharge to wetlands to produce Class A effluent for re use. Also, Alice Springs has recently installed a DAF system to upgrade effluent quality from the ponds. In considering major upgrades, Western Treatment Plant in Werribee Melbourne is probably the ultimate. The issue here was inconsistent nitrogen reduction. Part of one of the lagoons was converted to provide a more conventional approach to wastewater treatment via an activated sludge plant (Modified Ludzack Ettinger) to remove nitrogen. However, the process involves discharge back to the lagoons to utilise their assimilative capacity, and trials have also been undertaken on introducing an internal pond recycle
8 with the mechanical plant (known as the PETRO process). This reportedly promotes conditions for micro flocculating algae to form, which are removed in the clarifier tanks. CONCLUSIONS Pond systems are widely used in a number of applications. Where there is land available, they are an appropriate technology, approaching sustainable operation (and are regarded as a controlled encapsulation of the natural environment). Their low cost and simple operation make them a very attractive option for treatment of a wide variety of wastewaters. There are, however, a number of criteria and design aspects, which must be adhered to maximise performance. BOD is typically removed to a significant extent (over 80 % in some cases). Nutrients can also be removed but this is largely inconsistent, particularly during winter. In addition, despite widely held perceptions, operational control (including monitoring) and regular desludging is needed, although there are significantly less requirements than conventional systems. Addition of mechanical aeration provides greater control with lower footprint there is a trade off. The cumulative treatment effect of multiple ponds in series helps to achieve significant BOD reduction, but does not necessarily improve SS reduction for pond systems, which are impacted by algal solids. In areas that utilise pond effluent for irrigation of agricultural application, without the need for stringent disinfection criteria or nutrient reduction, then ponds are considered to be an ideal approach for wastewater treatment. If circumstances dictate, pond effluent can be upgraded via implementation of downstream processes to remove residual / algal solids and contaminants to achieve a high effluent quality. Key opportunities for upgrading and operational improvements for existing pond systems are regarded as:» Inclusion of screening to prevent downstream issues;» Implementation of a regular desludging program to minimise accumulation of solids;» Reconfiguration of inlet / outlet or installation of baffles to prevent short circuiting and reduce occurrence of dead zones» Installation of mechanical aeration to improve oxygen transfer, pond mixing and reduce BOD concentrations. REFERENCES EPA (1997), South Australia Pond Guidelines EPA (1996) Design and Management of Tasmanian Sewage Lagoon Systems Laginestra, M & Berzins, A (2006) Mt Barker Wastewater Treatment Lagoon Upgrade Achieving Suitable Effluent Quality For Re Use. Enviro 2006 (Melbourne). Power and Water Corporation (2006) Annual Report Wastewater Treatment, Reuse and Discharge Metcalf and Eddy, Wastewater Engineering, Treatment, Disposal, Reuse, Third Edition, 1991 Shilton, A (ed.) (2005), Pond Treatment technology. Integrated Environmental technology Series, IWA Waste Stabilization Ponds, Earnest F. Gloyna, World Health Organisation, Geneva, 1971.
Lagoons Operation and Management in New Brunswick
Lagoons Operation and Management in New Brunswick Lagoons Provide secondary treatment to domestic wastewater by the action of bacteria stabilizing the organic matter in the wastewater. Benefits of lagoons:
More informationENHANCING THE PERFORMANCE OF OXIDATION DITCHES. Larry W. Moore, Ph.D., P.E., DEE Professor of Environmental Engineering The University of Memphis
ENHANCING THE PERFORMANCE OF OXIDATION DITCHES Larry W. Moore, Ph.D., P.E., DEE Professor of Environmental Engineering The University of Memphis ABSTRACT Oxidation ditches are very popular wastewater treatment
More informationCOMPARISON OF SBR AND CONTINUOUS FLOW ACTIVATED SLUDGE FOR NUTRIENT REMOVAL
COMPARISON OF SBR AND CONTINUOUS FLOW ACTIVATED SLUDGE FOR NUTRIENT REMOVAL Alvin C. Firmin CDM Jefferson Mill, 670 North Commercial Street Suite 201 Manchester, New Hampshire 03101 ABSTRACT Sequencing
More informationLEMNA BIOLOGICAL TREATMENT PROCESS LEMTEC TM TECHNOLOGIES, INC.
LEMNA TECHNOLOGIES, INC. I n n o v a t i v e W a s t e w a t e r T r e a t m e n t S o l u t i o n s LEMTEC TM BIOLOGICAL TREATMENT PROCESS LEMNA For more than 20 years, Lemna has been the world leader
More informationfinal report Water quality improvement strategy for a processing site
final report Project title: Water Quality Improvement Strategy Project code: P.PSH.0449 Prepared by: GHD Date published: July 2010 PUBLISHED BY Meat & Livestock Australia Limited Locked Bag 991 NORTH SYDNEY
More informationNITROGEN REMOVAL OPTIMISATION FROM COMPLEX WASTEWATER
NITROGEN REMOVAL OPTIMISATION FROM COMPLEX WASTEWATER D.D. Irvine and A. Khan Pattle Delamore Partners Limited, Auckland, New Zealand A.F. Findson Wallace Corporation Limited, Waitoa, New Zealand ABSTRACT
More informationWastewater Characterisation and Treatment
Wastewater Characterisation and Treatment Recommended text books: Wastewater Engineering Metcalf and Eddy Standard Methods for the Examination of Water and Wastewater Contact: Benoit Guieysse B.J.Guieysse@massey.ac.nz
More informationApplication of Covered Anaerobic Lagoons for pre- treatment of Wastewater in red meat and other industries Abstract Keywords: Introduction
Application of Covered Anaerobic Lagoons for pretreatment of Wastewater in red meat and other industries Mitchell Laginestra*, Anthony Allan, GHD Pty Ltd, 211 Victoria Square, Adelaide SA 5000, Australia,
More informationSludge recycling (optional) Figure Aerobic lagoon
19.4 Aerated Lagoon Aerated lagoons are one of the aerobic suspended growth processes. An aerated lagoon is a basin in which wastewater is treated either on a flow through basis or with solids recycle.
More informationBest Practice in Sewage and Effluent Treatment Technologies
Best Practice in Sewage and Effluent Treatment Technologies Contents 1 Wastewater - Introduction 1 1.1 Earth s ecological system 1 1.1.1 Water effect on ecology 2 1.1.2 Wastewater generation 3 1.2 Wastewater
More informationWASTEWATER TREATMENT PLANT MASTER PLAN 6. BUSINESS CASE EVALUATION OF ALTERNATIVES
WASTEWATER TREATMENT PLANT MASTER PLAN 6. BUSINESS CASE EVALUATION OF ALTERNATIVES A range of potential ammonia limits were identified for alternatives evaluation, as discussed in Section 2.2.5. This chapter
More informationWastewater Treatment Design of Waste Stabilization Ponds
The Islamic University of Gaza Faculty of Engineering Civil Engineering Department Sanitary Engineering (ECIV 4325) Instructor: Dr. Abdelmajid Nassar Lect. W10 Wastewater Treatment Design of Waste Stabilization
More informationLOW OPERATING COST WASTEWATER TREATMENT TECHNOLOGIES FOR RED MEAT AND OTHER INDUSTRIES
LOW OPERATING COST WASTEWATER TREATMENT TECHNOLOGIES FOR RED MEAT AND OTHER INDUSTRIES Mitchell Laginestra 1 1. GHD Pty Ltd, Adelaide, SA ABSTRACT The cost of treating wastewater from red meat processing
More informationSIMPLE and FLEXIBLE ENERGY SAVINGS And PERFORMANCE ENHANCEMENT for OXIDATION DITCH UPGRADES
SIMPLE and FLEXIBLE ENERGY SAVINGS And PERFORMANCE ENHANCEMENT for OXIDATION DITCH UPGRADES Oxidation ditches are very popular wastewater treatment processes for small to medium sized municipalities that
More informationConstructed Wetlands
Constructed Wetlands Constructed Wetlands Artificial wastewater treatment systems consisting of shallow ponds or channels which have been planted with aquatic plants to treat wastewater. Rely upon natural
More informationCOLD WEATHER NITRIFICATION OF LAGOON EFFLUENT USING A MOVING BED BIOFILM REACTOR (MBBR) TREATMENT PROCESS
ABSTRACT COLD WEATHER NITRIFICATION OF LAGOON EFFLUENT USING A MOVING BED BIOFILM REACTOR (MBBR) TREATMENT PROCESS Mr. Flemming G. Wessman 1 and Mr. Chandler H. Johnson 1 AnoxKaldnes, Inc., 58 Weybosset
More informationDuffin Creek Water Pollution Control Plant Technical Information
Duffin Creek Water Pollution Control Plant Technical Information Plant History The Duffin Creek Water Pollution Control Plant (WPCP) is located on the northern shore of Lake Ontario in the City of Pickering
More informationAMPC Wastewater Management Fact Sheet Series Page 1
Nitrogen removal Nitrogen present in meat processing wastewater are termed a nutrient, since they are essential elements for life. They largely derive from proteins dissolved into wastewater from meat
More informationAMPC Wastewater Management Fact Sheet Series Page 1
Nitrogen removal Nitrogen present in meat processing wastewater are termed a nutrient, since they are essential elements for life. They largely derive from proteins dissolved into wastewater from meat
More informationSanitary and Environmental Engineering I (4 th Year Civil)
Sanitary and Environmental Engineering I (4 th Year Civil) Prepared by Dr.Khaled Zaher Assistant Professor, Public Works Engineering Department, Faculty of Engineering, Cairo University Wastewater Flow
More informationWastewater Treatment Options For The Food Processing Industry. William F Ritter Professor Emeritus University of Delware July 27, 2018
Wastewater Treatment Options For The Food Processing Industry William F Ritter Professor Emeritus University of Delware July 27, 2018 Food Processing Categories ufruit and Vegetable Industry udairy Industry
More informationWASTEWATER TREATMENT SYSTEM
WASTEWATER TREATMENT SYSTEM PrintStudioOne.com Nelson Environmental Inc. The Nelson Environmental OPTAER system is an efficient pond-based wastewater treatment solution utilized in a broad spectrum of
More information/ Marley MARPAK Modular Biomedia /
/ Marley MARPAK Modular Biomedia / The Marley MARPAK Difference SPX Cooling Technologies is a world leader in the design, manufacturing and construction of cooling products. The design and production of
More informationSBR PROCESS FOR WASTEWATER TREATMENT
SBR PROCESS FOR WASTEWATER TREATMENT IMR E&T S.r.l. Maria Vittoria Marra maria.vittoria.marra@imr.it www.imr.it Purification of wastewater A process aimed at removing organic and inorganic contaminants
More informationWASTEWATER TREATMENT. Nelson Environmental Inc. Nelson Environmental Inc.
The OPTAER system provides reliable nutrient removal in pond based wastewater treatment plants combining cost-effective technologies and low maintenance requirements. WASTEWATER TREATMENT PrintStudioOne.com
More informationContents General Information Abbreviations and Acronyms Chapter 1 Wastewater Treatment and the Development of Activated Sludge
Contents Contents General Information Abbreviations and Acronyms... 6 Chapter 1 Wastewater Treatment and the Development of Activated Sludge... 8 The Importance of Wastewater Treatment... 8 The Scope of
More informationTWO YEARS OF BIOLOGICAL PHOSPHORUS REMOVAL WITH AN ADVANCED MSBR SYSTEM AT THE SHENZHEN YANTIAN WASTEWATER TREATMENT PLANT
TWO YEARS OF BIOLOGICAL PHOSPHORUS REMOVAL WITH AN ADVANCED MSBR SYSTEM AT THE SHENZHEN YANTIAN WASTEWATER TREATMENT PLANT Chester Yang, Ph.D., Gaowei Gu, Baowei Li, Hongyuan Li, Wanshen Lu, Lloyd Johnson,
More informationUtilizing algal oxygen production for advanced wastewater treatment in a Moving Bed Biofilm Reactor (MBBR) the Biologically Aerated Reactor (BAR )
Utilizing algal oxygen production for advanced wastewater treatment in a Moving Bed Biofilm Reactor (MBBR) the Biologically Aerated Reactor (BAR ) R. Blanc*, U. Leshem Aquanos Energy Ltd., 4 Hadekel Street,
More informationMARPAK modular biomedia WASTEWATER TREATMENT
MARPAK modular biomedia WASTEWATER TREATMENT The Marley MARPAK Difference SPX Cooling Technologies is a world leader in the design, manufacturing and construction of evaporative cooling products. The design
More informationGeosynthetics for Rapid Redevelopment of Water and Wastewater Facilities
Geosynthetics for Rapid Redevelopment of Water and Wastewater Facilities Mike Sadlier, Geosynthetic Consultants Australia Melbourne sadlier@attglobal.net Abstract: In the aftermath of a natural disaster
More informationIndian Health Service Sanitation Facilities Construction Program Wastewater Lagoon Operation & Maintenance
Indian Health Service Sanitation Facilities Construction Program Wastewater Lagoon Operation & Maintenance http://www.dsfc.ihs.gov By: Christen P. Glime, P.E., District Engineer Santa Fe District Office,
More informationEVW 2 Hynds Commercial Wastewater Systems April 2013
Hynds Commercial Wastewater Systems High quality sewage treatment systems Fully designed by qualified engineers Small footprint EVW 2 Hynds Commercial Wastewater Systems April 2013 0800 425 433 www.hyndsenv.co.nz
More informationOPERATION AND MANAGEMENT OF WASTEWATER TREATMENT PLANTS
OPERATION AND MANAGEMENT OF WASTEWATER TREATMENT PLANTS Authors: Andrea Giordano Luigi Petta ENEA, Ente per le Nuove Tecnologie, l Energia e l Ambiente Bologna, Italy Keywords: Maintenance, Wastewater,
More informationSanitary Sewer Systems. Sewage Collection System. Types of Sewage 10/12/2016. General Overview
Sanitary Sewer Systems General Overview Sewage Collection System Pipes Pumping stations Maintenance entry points manholes Types of Sewage Sanitary Domestic sewage: human wastes and washwater from public
More informationNEW BIOLOGICAL PHOSPHORUS REMOVAL CONCEPT SUCCESSFULLY APPLIED IN A T-DITCH PROCESS WASTEWATER TREATMENT PLANT
NEW BIOLOGICAL PHOSPHORUS REMOVAL CONCEPT SUCCESSFULLY APPLIED IN A T-DITCH PROCESS WASTEWATER TREATMENT PLANT ABSTRACT C. Yang*, L. Zhou**, W. Luo***, and L. Johnson**** *Corstar International Corp. 111
More informationCompact Waste Water Treatment MBR /MBBR Technology
Compact Waste Water Treatment MBR /MBBR Technology 1 Minimal Operation and Maintenance Costs and use of Chemicals 2 Recycle and Reuse water for Irrigation and Recreation 3 Save Water, Energy, Money and
More informationEHS SMART-Treat Onsite Moving Media Treatment System
EHS SMART-Treat Onsite Moving Media Treatment System Sampling &Testing Protocol for SMART-Treat Wastewater Treatment System SAMPLING DURING OPERATION OF THE TREATMENT SYSTEM-IF DESIRED Sampling and analytical
More informationDomestic Waste Water (Sewage): Collection, Treatment & Disposal
Domestic Waste Water (Sewage): Collection, Treatment & Disposal Sanitary sewers Storm water sewers Combined sewers Types of sewers: Types of collection system Building sewer/building connections:connected
More informationTALBINGO WASTEWATER TREATMENT PLANT UPGRADE. Kay White
TALBINGO WASTEWATER TREATMENT PLANT UPGRADE Paper Presented by: Kay White Authors: Kay White, Senior Process Engineer, Tanya Luo, Graduate Civil Engineer, Li Lern Lau, Process Engineer, SMEC Australia
More information13.8 SEWAGE TREATMENT FLOW SHEET
1 13.7.5 Flow Patterns of Reactors The flow pattern in the reactors depends on mixing conditions in them. This mixing in tern depends upon the shape of the reactor, energy spent per unit volume of the
More informationBest practice in monitoring process, operation and maintenance of wastewater treatment plants 12 September 2011, Bucharest
Best practice in monitoring process, operation and maintenance of wastewater treatment plants 12 September 2011, Bucharest Steve Russell WRc PLC Swindon UK Steve.russell@wrcplc.co.uk WRc plc 2011 Plan
More informationENVE 302 Environmental Engineering Unit Processes
ENVE 302 Environmental Engineering Unit Processes CHAPTER: 11 PONDS & LAGOONS Assist. Prof. Bilge Alpaslan Kocamemi Marmara University Department of Environmental Engineering Istanbul, Turkey 1 PONDS &
More informationEnvironmental Biotechnology Cooperative Research Centre Date submitted: March 2008 Date published: March 2011
final report Project code: A.ENV.0044 Prepared by: Environmental Biotechnology Cooperative Research Centre Date submitted: March 2008 Date published: March 2011 PUBLISHED BY Meat & Livestock Australia
More informationA Hybrid Constructed Wetland System for Decentralized Wastewater Treatment
A Hybrid Constructed Wetland System for Decentralized Wastewater Treatment C. Kinsley 1, A. Crolla 1, J. Rode 1,2, R. Zytner 2 1 Ontario Rural Wastewater Centre, Université de Guelph-Campus d Alfred 2
More informationTurbo4bio System For the Treatment of Sewage & Organic Effluents
Turbo4bio System For the Treatment of Sewage & Organic Effluents Dr.Hans. H.Badreddine President Turbo4bio Page 1 Executive Summary The Turbo4bio system has been patented in the UK and Europe by Hans Bioshaft
More informationCopies: Mark Hildebrand (NCA) ARCADIS Project No.: April 10, Task A 3100
MEMO To: Jeff Pelz (West Yost) Kathryn Gies (West Yost) Copies: Mark Hildebrand (NCA) ARCADIS U.S., Inc. 200 Harvard Mills Square Suite 430 Wakefield Massachusetts 01880 Tel 781 224 4488 Fax 781 224 3033
More informationENGINEERED WETLAND TECHNOLOGY TO ADVANCE STORMWATER QUALITY TREATMENT. Sheldon Smith March 28, Photo Optional
ENGINEERED WETLAND TECHNOLOGY TO ADVANCE STORMWATER QUALITY TREATMENT Sheldon Smith March 28, 2012 Photo Optional TWO BASIC TYPES OF CONSTRUCTED WETLANDS Stormwater (SW) Wetlands Treatment Wetlands A Stormwater
More informationDepartment of Environmental Quality
EARL WUESTNICK Wastewater Specialist Bruce Lack Certification Specialist Department of Environmental Quality Operator Training and Certification Unit OPERATOR TRAINING AND CERTIFICATION UNIT For More Information
More informationAqua Hybrid BNR. Description
Description The Aqua Hybrid BNR (Biological Nutrient Removal) process was developed to capture the features of conventional IDEA (Intermittently Decanted Extended Aeration) processes, but at an affordable
More informationWASTEWATER DEPARTMENT. Bentonville Wastewater Treatment Plant Facts:
Mission: The mission of the Bentonville Wastewater Treatment Utility and staff is to protect public health and the environment through the effective treatment of wastewater. Effective wastewater treatment
More informationCore Notes for Module 6 (Elective) of the Course Environmental Engineering Sustainable Development in Coastal Areas Mr M S Haider
WASTEWATER Core Notes for Module 6 (Elective) of the Course Environmental Engineering Sustainable Development in Coastal Areas Mr M S Haider The material for this Lecture also includes: Synopsis Case Study
More informationWaste water treatment
Waste water treatment Responsible water management means the treatment and disposal of the generated waste water, for which suitable and effective wastewater treatment plants and systems are needed. Based
More informationDESIGNING LAGOON-BASED WWTP FOR <1 MG/ L AMMONIA (AND TN) IN <34 F WATER. Nick Janous Regional Manager
DESIGNING LAGOON-BASED WWTP FOR
More informationBIOSPHERE MOVING BED BIOLOGICAL SYSTEMS
REACTION TANKS BIOSPHERE MOVING BED BIOLOGICAL SYSTEMS PROVEN FIXED-FILM TECHNOLOGY IDEAL FOR BNR UPGRADES AND CAPACITY EXPANSIONS. SAME FOOTPRINT, BETTER TREATMENT AT NEPTUNE BEACH, FL WWTP Without adding
More informationCertificate of Accreditation
NSW GOVERNMENT Health Certificate of Accreditation Aerated Wastewater Treatment System This Certificate of Accreditation is hereby issued by the Director-General of the NSW Ministry of Health pursuant
More informationCase Study. Biological Help for the Human Race. Industrial Wastewater Treatment at Eastern Seaboard Industrial Estate, Thailand.
Case Study BiOWiSH Aqua Industrial Wastewater Treatment at Eastern Seaboard Industrial Estate, Thailand BiOWiSH Aqua Background Eastern Seaboard Industrial Estate (ESIE) is located in Rayong province on
More informationEconomic Criteria and Parameters to Evaluate Wastewater Pond Systems
Economic Criteria and Parameters to Evaluate Wastewater Pond Systems K.-U. Rudolph, T. Fuhrmann, M. Harbach Slide 1 Table 1 Basic characteristics of core wastewater pond systems No 1 2 3 Characteristic
More informationThe High-Tech of a Creek. The Biofilm Technology for Large Wastewater Treatment Plants.
The High-Tech of a Creek The Biofilm Technology for Large Wastewater Treatment Plants. Photo: Holzberger Exceptional Treatment from 4 to 5000 Inhabitants. The researchers from the Bergmann Gruppe in co-operation
More informationBEING GOOD STEWARDS: IMPROVING EFFLUENT QUALITY ON A BARRIER ISLAND. 1.0 Executive Summary
BEING GOOD STEWARDS: IMPROVING EFFLUENT QUALITY ON A BARRIER ISLAND Brett T. Messner, PE, Tetra Tech, Inc., 201 E Pine St, Suite 1000, Orlando, FL 32801 Brett.Messner@tetratech.com, Ph: 239-851-1225 Fred
More informationSETTLING REVIEW CHECKLIST
SETTLING REVIEW CHECKLIST Water Quality Wastewater Technical Review and Guidance FACILITY NAME CONSULTING ENGINEER DATE Water/Wastewater/#5.73, May 2001 SITE INSPECTION (DATE & INSPECTOR) PLANNING OR DESIGN
More informationWetland Design Manual. Supporting document: Wetland form and function
Wetland Design Manual Supporting document: Wetland form and function Table of contents Contents Water Sensitive Urban Design... 3 Protection of waterways... 3 Management of stormwater in urban landscapes...
More informationWaste Stabilisation Pond Workshops. Nick Walmsley May 2018
Waste Stabilisation Pond Workshops Nick Walmsley May 2018 Workshop Program Pond Classifications and typical performance What to size for Upgrade Options; by performance and process O & M requirements Monitoring
More informationAquaPASS. Aqua MixAir System. Phase Separator. System Features and Advantages. Anaerobic. Staged Aeration. Pre-Anoxic.
PHASED ACTIVATED SLUDGE SYSTEM PHASED ACTIVATED SLUDGE SYSTEM Aqua-Aerobic Systems has led the industry in time-managed, biological technology since 1984. In 2004, Aqua-Aerobic applied its expertise in
More informationLAGOON. technologies for cleaner water
LAGOON technologies for cleaner water optaer and SAGR installation at Shellbrook, Saskatchewan The wastewater industry has seen how nutrients and energy costs expose the limits of existing solutions.
More informationWASTE TREATMENT LAGOON
359-1 NATURAL RESOURCES CONSERVATION SERVICE CONSERVATION PRACTICE STANDARD WASTE TREATMENT LAGOON (No.) CODE 359 DEFINITION A waste treatment impoundment made by constructing an embankment and/or excavating
More informationMonitoring the Performance of Anaerobic Ponds in the Treatment of Abattoir Wastewater
Monitoring the Performance of Anaerobic Ponds in the Treatment of Abattoir Wastewater Dr Bernadette McCabe National Centre for Engineering in Agriculture, USQ MINTRAC QLD Environment Network Meeting 14
More informationAvailable online Journal of Scientific and Engineering Research, 2017, 4(1): Research Article
Available online www.jsaer.com, 2017, 4(1):114-120 Research Article ISSN: 2394-2630 CODEN(USA): JSERBR Design of Waste Stabilisation Pond for Bekdash, Turkmenistan Isa Zubairu*, Umar Dahiru Abubakar Department
More informationRecycling of Food Processing Wastewater to Potable Water Standards
Recycling of Food Processing Wastewater to Potable Water Standards The issues surrounding wastewater recycling in the food and drinks sector are generally well known. Over the past ten years a UK owned
More informationUpgrading Lagoons to Remove Ammonia, Nitrogen, and Phosphorus *nutrient removal in cold-climate lagoon systems
Upgrading Lagoons to Remove Ammonia, Nitrogen, and Phosphorus *nutrient removal in cold-climate lagoon systems October 7, 2015 3:15 4:00pm Session M Room Tamboti / Aloes-wood Treatment Processes Aerated
More informationFAYOUM CITY SEWAGE TREATMENT PLANT, DEVELOPMENT STAGES, CASE STUDY
FAYOUM CITY SEWAGE TREATMENT PLANT, DEVELOPMENT STAGES, CASE STUDY Ahmed El-Zayat, Environmental Engineering Group, Egypt Emaill: ahmed_el_zayat@yahoo.com Introduction This case study focuses on three
More informationAMMONIA REMOVAL USING MLE PROCESS EXPERIENCES AT BALLARAT NORTH. David Reyne. Central Highlands Water Authority
AMMONIA REMOVAL USING MLE PROCESS EXPERIENCES AT BALLARAT NORTH Paper Presented by : David Reyne Author: David Reyne, Plant Operator Wastewater Treatment, Central Highlands Water Authority 65 th Annual
More information- 1 - Retrofitting IFAS Systems In Existing Activated Sludge Plants. by Glenn Thesing
- 1 - Retrofitting IFAS Systems In Existing Activated Sludge Plants by Glenn Thesing Through retrofitting IFAS systems, communities can upgrade and expand wastewater treatment without the expense and complication
More informationWastewater Terms for Permit Applications
Wastewater Terms for Permit Applications Activated Sludge Alkalinity Anaerobic Anoxic Bacteria The term "activated sludge" refers to a brownish flocculent culture of organisms developed in aeration tanks
More informationWastewater treatment for single houses. D. O Dowd
Wastewater treatment for single houses 1 * In rural settings, connection to the local authority main sewer is not always possible, so each house has its own separate wastewater treatment system for the
More informationProposal by Russia to delete hot sub-spot Hot sub-spot name South-West Wastewater Treatment Plant
Proposal by Russia to delete hot sub-spot 18.4 LAND 14/2009, Document 6/3/Rev.1 ATTACHMENT 1. Hot sub-spot name South-West Wastewater Treatment Plant 2. Location Block 2, 123, Volkhonskoye shosse, St.
More informationNutrient Removal Processes MARK GEHRING TECHNICAL SALES MGR., BIOLOGICAL TREATMENT
Nutrient Removal Processes MARK GEHRING TECHNICAL SALES MGR., BIOLOGICAL TREATMENT Presentation Outline 1. Nutrient removal, treatment fundamentals 2. Treatment strategies Treatment methods: CAS, SBR,
More informationFrequently Asked Questions for Septic Tank and other Wastewater Treatment Systems
Frequently Asked Questions for Septic Tank and other Wastewater Treatment Systems 1. What happens to wastewater from my home? 2. How should a septic tank wastewater treatment system work? 3. What is a
More informationCHAPTER 4 WASTEWATER CHARACTERISTICS WASTEWATER FLOWS
CHAPTER 4 WASTEWATER CHARACTERISTICS Wastewater collection, treatment, and disposal facilities are designed to handle specific hydraulic and pollutant loads for 20 or more years after they are constructed.
More informationImproving Septic Tank Performance by Enhancing Anaerobic Digestion NOWRA Onsite Wastewater Mega-Conference
Improving Septic Tank Performance by Enhancing Anaerobic Digestion NOWRA Onsite Wastewater Mega-Conference Christopher Jowett October 23, 2017 Outline Anaerobic 101 Important factors influencing treatment
More informationChris Kinsley, M.Eng., P.Eng. Anna Crolla, M.A.Sc., P.Eng. Sara Altimimi, B.A.Sc.
From Brown Water to Blue Water Natural systems to recycle farm effluents Chris Kinsley, M.Eng., P.Eng. Anna Crolla, M.A.Sc., P.Eng. Sara Altimimi, B.A.Sc. Ontario Rural Wastewater Centre University of
More informationETHANOL DOSING OPTIMISATION IN BIOREACTOR. Blake Schneider. Blake Schneider, Duty Operator, Thakshila Balasuriya, Process Engineer, City of Gold Coast
ETHANOL DOSING OPTIMISATION IN BIOREACTOR Paper Presented by: Blake Schneider Authors: Blake Schneider, Duty Operator, Thakshila Balasuriya, Process Engineer, City of Gold Coast 39th Annual WIOA Queensland
More informationCase Study. Biological Help for the Human Race. Bathurst Municipal Wastewater Treatment Works, New South Wales, Australia.
Case Study BiOWiSH Aqua Bathurst Municipal Wastewater Treatment Works, New South Wales, Australia BiOWiSH Aqua Executive Summary The main objective of the study was to quantify the cost savings of using
More informationDISCUSSION PAPER. 1 Objective. 2 Design Flows and Loads. Capital Regional District Core Area Wastewater Management Program
DISCUSSION PAPER Capital Regional District Core Area Wastewater Management Program Macaulay/McLoughlin Point Wastewater Treatment Plant Discussion Paper Liquid Process Alternatives Evaluation 034-DP-1
More informationBiological Help for the Human Race. Wastewater Treatment. Case Study. Thatchers Cider Company Ltd, United Kingdom. BiOWiSH Aqua Benefits.
Case Study Wastewater Treatment Thatchers Cider Company Ltd, United Kingdom Background Thatchers Cider Company Ltd is a manufacturer of cider and fruit juices situated in the county of Somerset, UK with
More informationENHANCED BIOLOGICAL PHOSPHORUS REMOVAL WITHIN MEMBRANE BIOREACTORS. 255 Consumers Road Toronto, ON, Canada, M2J 5B6
ENHANCED BIOLOGICAL PHOSPHORUS REMOVAL WITHIN MEMBRANE BIOREACTORS G. Crawford 1,2, G. Daigger 1, and Z. Erdal 1 1 CH2M HILL 2 CH2M HILL 255 Consumers Road Toronto, ON, Canada, M2J 5B6 ABSTRACT Several
More informationINFRASTRUCTURE & OPERATION
SECTION C: INFRASTRUCTURE & OPERATION Advice on completing this section is provided in the accompanying Guidance Note. C.1 Operational Information Requirements Provide a description of the plant, process
More informationDissolved Oxygen (DO):
Section VIII Water Treatment- Introduction Dissolved Oxygen (DO): - The source of D.O in water is photosynthesis and aeration - It is one of important parameters to measure the water quality. - It gives
More informationPresentation Outline
Presentation Outline Nitrification/denitrification refresher Treatment technologies available for nitrification and BNR/ENR What is the problem? BNR/ENR VPDES permitting Causes of reduced BNR performance
More informationNovel Memthane Anaerobic MBR realizing sustainable ambitions. Frankfurt; June 19, 2012; 11:30 Jan Pereboom and Jeroen van der Lubbe
Novel Memthane Anaerobic MBR realizing sustainable ambitions Frankfurt; June 19, 2012; 11:30 Jan Pereboom and Jeroen van der Lubbe Contents 1. Introduction 2. Drivers for AnMBR 3. Novel Memthane technology
More informationBaltimore City Department of Public Works
Baltimore City Department of Public Works Back River WWTP Process and Construction Overview Michael F. Gallagher, Chief Wastewater Facilities Division Wastewater Treatment Chesapeake Bay Restoration Water
More information1/11/2016. Types and Characteristics of Microorganisms. Topic VI: Biological Treatment Processes. Learning Objectives:
Topic VI: Biological Treatment Processes Learning Objectives: 1. Discuss microbiology and relate it to wastewater treatment. 2. Describe growth kinetics of pure bacterial culture with Monod expression
More informationCase Study. Biological Help for the Human Race. BiOWiSH Aqua Improves Nutrient Removal in a Wastewater Treatment Plant - Oberon, Australia
Case Study BiOWiSH Aqua BiOWiSH Aqua Improves Nutrient Removal in a Wastewater Treatment Plant - Oberon, Australia BiOWiSH Aqua Executive Summary A bioaugmentation program using BiOWiSH Aqua was implemented
More informationNC-PC Industry Day Pretreatment 101. Industrial Waste Impacts on POTW Treatment Processes. Dawn Padgett Operations Manager Charlotte Water
NC-PC Industry Day Pretreatment 101 Industrial Waste Impacts on POTW Treatment Processes Dawn Padgett Operations Manager Charlotte Water NC-PC Industry Day Definitions BOD Amount of oxygen consumed by
More informationIntegrated Water & Wastewater Treatment Solutions Extending Nature s Capacity
Integrated Water & Wastewater Treatment Solutions Extending Nature s Capacity www.aqwise.com OVerVieW Aqwise is a world leader in the development and implementation of innovative water and wastewater treatment
More informationA SUBMERGED ATTACHED GROWTH BIOREACTOR FOR DECENTRALIZED WASTEWATER TREATMENT
A SUBMERGED ATTACHED GROWTH BIOREACTOR FOR DECENTRALIZED WASTEWATER TREATMENT P.B. Pedros * and W.K. Dobie F.R. Mahony & Associates, Inc. 273 Weymouth Street Rockland, MA 02370 ABSTRACT The Amphidrome
More informationvolumes 11 days from 6 days from volumes are in small gaps Over the
Greytown Wastewater Treatment Plant Effluent Quantity and Quality Review Wastewater flow volumes The existing discharge consent allows for an average discharge volume of 1,350 m 3 per day ( annual mean)
More informationSequence Batch Reactor A New Technology in Waste Water Treatment
Sequence Batch Reactor A New Technology in Waste Water Treatment Ashutosh Pipraiya 1, Diwan Singh 2, SK Patidar 3 1 M.Tech, Department of Civil Engineering, National Institute of Technology Kurukshetra
More informationWastewater treatment. Daniel M. White Interim Vice Chancellor for Research University of Alaska Fairbanks
Wastewater treatment Daniel M. White Interim Vice Chancellor for Research University of Alaska Fairbanks Wastewater treatment Wastewater treatment Getting rid of honey bucket bags is a wastewater collection
More informationSECTION 8.0 NEWPCC SECOND PRIORITY CONTROL ALTERNATIVES
SECTION 8.0 NEWPCC SECOND PRIORITY CONTROL ALTERNATIVES 8.1 PREAMBLE Table 8.1 below indicates the target ammonia concentrations for the Best Practicable and the Second Priority Levels of Control for the
More informationResearch Article Design, Construction and Performance Evaluation of a Model Waste Stabilization Pond
Research Journal of Applied Sciences, Engineering and Technology 7(9): 1710-1714, 2014 DOI:10.19026/rjaset.7.453 ISSN: 2040-7459; e-issn: 2040-7467 2014 Maxwell Scientific Publication Corp. Submitted:
More information