Green Business Options 19 th & 20 th March 2016, Krishna Palace, Ambernath. Organizer MPCB Co organizers - IGCW Introduction..
Waste water treatment and Zero liquid discharge : Way to sustain
What s Happening! Source : ET 6 th March 2016
Water Vital Resource Major component for most industrial processes Critical for sustaining life Human consumption, food security Increasingly scarce and polluted Need of the Hour: Use & Manage Water Better
Conventional Sources : Sources of Water Surface Water Ground Water Non Conventional / Alternate Sources Recycled Waste Water - Industrial Waste - Domestic Sewage/Sullage Sea Water
Water Usage 10% 8% 82% Agriculture Industrial Domestic Agriculture the largest consumer of water Domestic consumption accounts for less than 10% Industrial consumption expected to grow rapidly
Cu.m/person/year M3/Person/Year Water Crisis In India India expected to be severely water stressed by 2025. This also relates to food. 5177 Total demand in 2025: 1674 billion cu.m. 1820 1340 650 Gap Usable 1951 2001 Year 2025 2050 While water quality deteriorates from bad to worse
ZERO LIQUID DISCHARGE SYSTEMS (ZLD)
SESSION OBJECTIVE To share our experience & capabilities in creating new sustainable sources of water through Zero Liquid Discharge (ZLD) systems
HOW WATER EFFICIENT IS INDIAN INDUSTRY? Water use efficiency in Indian Industries continues to be much lower when compared to some other developing countries in the world Country Industrial water use (billion cubic metres) Industrial productivity ( million US$) Argentina 2.6 77,171.0 30.0 Brazil 9.9 231,442.0 23.4 India 15.0 113,041.0 7.5 Republic of Korea 2.6 249,268.0 95.6 Norway 1.4 47,599.0 35.0 Sweden 0.8 74,703.0 92.2 Thailand 1.3 62,800.0 48.9 Industrial water productivity (US$/cubic metres) COMPARATIVE WATER USE BY INDUSTRY Source : World Bank (2001)
AVAILABILITY OF WATER IMPACTING BUSINESS Source: FICCI(2011)
Waste Water Recycle & Zero Liquid Discharge (ZLD)
- Raw water scarce - Raw water cost high - Strict discharge regulations - ISO 14001 - Corporate Social Responsibility (CSR)
ZERO LIQUID DISCHARGE SYSTEM FOR INDUSTRY
REAL SOLUTIONS. TANGIBLE IMPACTS.
SELECTION CRITERION Complex & difficult to treat waste water Completely integrated solution High recovery systems ( 85%) No liquid discharge
CHALLENGES Water intensive industry Water stressed area Little availability of raw water Cost of raw water high Strict discharge regulation Customer wanted assured supply of raw water with consistent quality
CASE - I
INDIAN SYNTHETIC RUBBER LTD. (ISRL), PANIPAT A joint venture of Indian Oil Corporation TSRC, Taiwan Marubeni Corporation, Japan
PRIMARY TREATMENT SOLUTION ZERO LIQUID DISCHARGE(ZLD) SYSTEM STREAM-I (PROCESS EFFULENT) FLOW = 3000m3/day
** Saving of 1000 million litres/year which is the approx. amount of water required for over 27000 people.
CASE - II
RELIANCE INDUSTRIES LIMITED (RIL), SILVASSA Largest private sector company in India Largest polyester yarn and fibre producer in the world Silvassa manufacturing division is the largest unit of it s kind in the world engaged in the field of texturing of polyester partially oriented yarn (POY) Produces a wide range of polyester textured yarns (PTY)
LTDS ETP
CASE - III
GUJARAT AMBUJA CEMENTS LTD. (GACL), ROPAR GACL is a part of the HOLCIM Group A Global leader in cement production
Total Recovery: 85% SOLUTION ZERO LIQUID DISCHARGE (ZLD) SYSTEM
RESULT Assured availability of water for process and other use Low dependence on fresh water supply Reduced requirement of fresh water resulted in savings Consistent quality Compliance with effluent discharge norms Enhanced corporate image
So is this all! No you have other water sources Recycling Sewage
How much water is needed/person? Bathing 55 ltrs Toilet flushing 30 ltrs Washing of cloths 20 ltrs Cooking/Drinking/washing utensiles -30 ltrs Total 120-150 Ltrs/Person/Day
Alternate Sources Waste Water can be an sustainable source of Water Community Sewage can be effectively recycled for Industrial as well as secondary uses in Communities Industrial waste water is an excellent resource for Industrial uses
Technology Options Sewage : NGPSTP, FMR, MBR, SBR, ASP.. Industrial Water : SBR, Disinfection & Filtration options, MBR, UF, RO, NF, Ion Exchange Sea Water : RO, Thermal Technologies
Options for Reuse A) Urban Reuse Landscaping Fire Protection Dust Control Concrete Mix at Construction sites Vehicle & Window Washing Toilet Flushing Cooling Water Boiler Make Up Process Water (for SEZ and industry clusters)
STANDARD SEWAGE TREATMENT UNITS NEW GENERATION PACKAGED SEWAGE TREATMENT PLANT (NGPSTP) FLUIDISED MEDIA REACTOR (FMR) MEMBRANE BIO-REACTOR (MBR)
OBJECTIVE OF BIOLOGICAL TREATMENT OF WASTEWATER Main objective is to remove organic matter from wastewater in a natural way without using toxic chemicals Other objective can be to remove other than organic matter such as ammonia/ heavy metals/ toxic organic chemicals like cyanides, phenols, etc.
TERMS USED IN BIOLOGICAL TREATMENT ORGANIC MATTER in wastewater is measured in terms of BOD (biochemical oxygen demand) or COD (chemical oxygen demand). BOD is defined as the amount of oxygen required for the biological decomposition of organic matter under aerobic conditions at a standardized temperature and time of incubation. COD is the amount of oxygen required for complete oxidation of organic compound into carbon dioxide and water with the help of strong oxidizing agents such as potassium dichromate.
BIOLOGICAL TREATMENT CAN BE AEROBIC which requires oxygen for their activity OR ANAEROBIC which does not require oxygen and produces methane as a by-product for possible use as energy
Typical Sewage Characteristics Srl. No. PARAMETER Apartm ents Commercial complexes Hotels IT parks Hospi tals 1 BOD 300 400 400 500 500 2 COD 400 800 800 800 1000 3 4 TOTAL SUSPENDED SOLIDS OIL & GREASE 300 20 400 20 400 20 400 20 300 20 5 ph 7 to 8.5 7 to 8.5 7 to 8.5 7 to 8.5 7 to 8.5 ALL PARAMETERS EXCEPT ph ARE IN mg/l
Use of Recycled Water Secondary Usage: TOILET FLUSHING GARDENING & LANDSCAPING VEHICLE WASHING PROCESS WATER ( COOLING TOWER )
INDION NEW GENERATION PACKAGED SEWAGE TREATMENT PLANT (NG PSTP)
Effluent Quality Influent BOD - 300 ppm SS - 300 ppm NG PSTP Effluent BOD - 30 ppm SS - 30 ppm
Process Details Sludge Primary Settlement Tank & Sludge Storage Treated Water Aerobic Biological Treatment Final Settlement Tank
NEW GENERATION SEWAGE TREATMENT PLANT Raw Sewage Treated Water Primary Aerotors Secondary Settlement Settlement
INDION NGPSTP - Features - Design Brief All-in-one Package Simple to Operate - Lamella Plates for Primary Settlement Effectively increases surface area Very compact More efficient Primary Aerotors Secondary Settlement Settlement - Compact Minimal Site Works - No Concrete Surround Easy Transport and Shipping Transportable units
INDION NGPSTP Features - Low Operating Costs Small Power Usage Very simple maintenance - 3 Months Sludge Storage - Units can be used in parallel for higher flow rates - For higher organic loads, units can be used in series
Applications & Uses... Where are Package STP s Applicable? Most Raw Sewage Outlets NOT Connected to a Municipal Works New Developments Tourism Industry Townships & Villages Hotels & Resorts Restaurants
...Applications & Uses Remote Factories Golf & Country Clubs Holiday Camps National Parks Motels Highway Service Stations Military Camps
NGPSTP - Summary All-in-one Package Sewage Treatment Plant Probably the Most Compact in the World Very Simple to Operate Easy to Maintain Low Operating Cost Modular Mechanically Reliable Efficient Process Simple maintenance
NGPSTP Installations
NGPSTP Installations
INDION FLUIDISED MEDIA REACTOR
Fluidised Media Reactor (FMR) SINGLE TANK DESIGN UNIT Aeration tank with patented media Lamella Settler Chlorine Contact Tank Animation
Features of FMR Media High Surface Area High physical & chemical resistance of media Low Annual Losses (3-5%) Media can be pumped by normal centrifugal pump Light weight media reduces transportation & Storage Requirements
FMR Advantages Significant reduction in space requirement due to high surface area and loading of media Reduced power and operating costs No pump for Sludge recycle No moving parts, less maintenance Easy upgradation and extension of existing waste water treatment plants
FMR Installations
FMR Installations
MEMBRANE BIO REACTOR
MEMBRANE BIO REACTOR Air Line Wastewater inlet Treated water Vacuum pump Aeration Tank Membrane Module Sludge outlet
MBR Performance PARAMETER MBR REMOVAL OUTLET BOD < 2 mg/l > 99% TSS < 1 mg/l > 99% TKN < 2 mg/l > 96% NH 3 < 0.3 mg/l > 97% Total P < 0.1 mg/l -- Turbidity < 1 NTU > 99% Total Coliforms < 100 cfu/100 ml > 6 log Feacal Coliforms < 10 cfu/100 ml > 6 log
MBR - Case
Some Press Releases Hindustan Dainik New Delhi,26 August,2005 CM Drinks Sewage Treated Water! Times of India New Delhi,24 August,2005
CROSS FLOW OF MBR
MBR PERFORMANCE PARAMETER MBR REMOVAL EFFLUENT BOD < 2 mg/l > 99% TSS < 1 mg/l > 99% NH3 < 0.3 mg/l > 97% Total P < 0.1 mg/l -- Turbidity < 1 NTU > 99% Total Coliforms < 100 cfu/100 ml > 6 log (99.9999%) Feacal Coliforms < 10 cfu/100 ml > 6 log (99.9999%)
MBR Features Immersed Hollowfibre Ultrafiltration system Compact, requires 1/2 to1/3 space for a conventional process 6 log (99.9999%) removal of total coliform Modular, Maintenance Free Low energy consumption (0.30 kwh/m 3 ) Standard modules to treat domestic sewage,primary or secondary waste waters, cooling tower blowdown etc. Single packaged unit with minimal civil construction Retrofitting an existing sewage treatment plant with C- mem can enhance treatment capacity nearly 3-5 folds
Water is everybody s business Together We can make a difference
Required Enlightened Industries Citizen Action Groups Municipalities Water Treatment Companies Participatory Approach
Please contact us for further more details : Nishant Thakre Email id : nishant.thakre@ionexchange.co.in Cell no : +91-9867163504