uu u Construction Solutions An unrivalled range of treatment solutions for the Construction Industry

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1 An nrivalled range of treatment soltions for the Constrction Indstry Constrction Soltions Silt Management Chemical Pre-treatment Concrete Washwater Hydrodemolition & ph Adjstment Oil Water Separators Site Sweeper Waste

2 Siltbster is the UK s leading athority on water treatment, wet waste and the prevention of silt polltion on constrction sites and environmental remediation projects. The Company specialises in providing an nrivalled range of eqipment, technologies and soltions which deal with all aspects of silt management and the prevention, control and treatment of water contamination. Specifically: Silt and solids laden srface and grondwater Oil contaminated water High ph cement laden washwater Hydrodemolition blast water Constrction site road sweeper waste Particlate and dissolved metal laden water Waste waters reqiring specialist chemical treatment Total water treatment soltions for the Constrction and Environmental Remediation Indstries Siltbster prides itself on the qality and efficiency of it s ready-made, easy to se, innovative eqipment packages and highly developed expertise, which seamlessly combine to develop treatment soltions which far exceed the standards reqired by today s environmental legislation. As experienced process engineers, backed p by the largest and most varied hire fleet of water treatment eqipment in the UK, Siltbster flly nderstands the science of water treatment why materials in water behave like they do, what is reqired to remove a wide variety of contaminants and why certain processes and technologies either do not work or are limited, at best. Welcome to Siltbster

3 An nrivalled range of treatment soltions Silt Management Since the lanch of the original Siltbster in 2003, the company has grown significantly, both in capability and experience. Working on almost every conceivable type of constrction project across the UK and beyond, Siltbster has gained the respect of contractors, clients and reglators for it s innovative design, depth of expertise and qality of service. It is this wealth of knowledge and experience that enables Siltbster to provide sch comprehensive and creative treatment soltions. Reqirements, ranging from the temporary hire of a small basic settlement nit p to fll chemical pre-treatment processes and solids/liqid separation for large and long-term projects, can freqently be satisfied at short notice. So, if yo have a problem with the treatment of water or wet waste on yor site, talk to the experts call Siltbster, TODAY! Chemical Pre-treatment Concrete Washwater Hydrodemolition & ph Adjstment Oil Water Separators Site Sweeper Waste For hire, sales or more details call Siltbster on

4 Gravity Settlement Siltbster Settlement Units & Water Clarifiers Siltbster is the UK s leading provider of mobile settlement nits and Lamella Clarifiers. Each nit in the extensive range is specifically designed to remove sspended solids and settleable matter from silt and solids laden srface rn-off and grondwater. Effective gravity based solid/liqid separation reqires the largest possible settlement area and optimm hydralic flow. Siltbster Clarifiers tilise lamella plate technology to maintain ideal settlement conditions within each nit, thereby, ensring maximm particle settlement and minimm nit footprint. Small footprint enables nits to be tilised in the tightest areas, inclding ndergrond installations Innovative otlet design maintains flow even when the nit is not exactly level Plate technology and configration hgely increases settlement area. Plates are designed for easy handling Flow distribtion has been designed to meet the rigors of the modern constrction site To achieve increased flow capacity and flexibilty on site, mltiple nits may be linked together in parallel, as reqired Emptying can be achieved by a range of methods, e.g. via drain ports & valves, vacm tanker or by manal or mechanical means Silt Management Siltbster mobile clarifiers are robst; skid-monted; compact and lightweight, making them simple to transport, install and operate. They are ideal for sites with limited access, restricted spaces and temporary projects. Hopper bottomed nits can be fitted (on reqest) with an atomatic sldge removal system making their operation virtally maintenance-free. Typical applications Constrction Pmping & de-watering Grondwater treatment Site rn-off treatment Drilling, piling & coffer dams In-river & near-river works De-silting & dredging Roads, pipelines & other linear projects Plant, vehicle & wheel washing Site water management

5 Silt Management The Siltbster Mobile Range Siltbster offers a range of varios sized nits to provide cstomers with flexibility and the opportnity to hire or prchase a tailored, yet off the shelf, soltion. FB50 Flat-bottomed, skid-monted nit. The Constrction Indstry s favorite Height: 1.9m HB10 Hopper-bottomed, skid-monted nit Height: 2.1m HB20 Enlarged version of HB10. Increased flow rate and sldge storage. Batch or continos sldge draw-off Height: 2.6m HB40R Hopper-bottomed, skid-monted nit Height: 3.1m HB50 Performance of the FB50 bt with twin hoppers for larger capacity, primary thickening applications and batch or continos sldge draw-off Height: 3.1m The Mobile Range, Size Comparison HB50 FB50 HB20 HB40R HB10 Length: 3.7m Width: 1.45m Effective Settlement Area: 50m 2 Dry Weight: 1,960kg Length: 1.9m Width: 0.9m Effective Settlement Area: 10m 2 Dry Weight: 510kg Length: 2.5m Width: 1.2m Effective Settlement Area: 20m 2 Dry Weight: 1,120kg Length: 3m Width: 2.2m Effective Settlement Area: 40m 2 Dry Weight: 2,480kg Length: 3.7m Width: 1.7m Effective Settlement Area: 50m 2 Dry Weight: 2,370kg Inlet: 4 baer Inlet: 2 baer Inlet: 3 baer Inlet: 4 baer Inlet: 4 baer Otlet: 6 baer Otlet: 3 baer Otlet: 4 baer Otlet: 6 baer Otlet: 6 baer Typical Operating Capacity: 1-50m 3 /hr Typical Operating Capacity: 1-10m 3 /hr Typical Operating Capacity: 1-20m 3 /hr Typical Operating Capacity: 1-40m 3 /hr Typical Operating Capacity: 1-50m 3 /hr The benefits Readily transportable, fast and simple to setp, easy to operate. Small footprint nits with large settlement area Uniqe design enables rapid particle settlement and water clarification Up to 20 times more efficient than conventional settlement tanks and lagoons of the same plan area Choice of nit sizes and capabilities to sit most applications Units can be sed individally or linked to accommodate a wide range of flows, pmp sizes and particle charcteristics Options & Process Add-ons Total Water Treatment Soltions Siltbster Clarifiers can be configred as single or mlitiple nits for basic gravity separation and discharge-to-sewer applications. Thay can also be spplied as part of a complete, tailored, packaged treatment soltion inclding ancilliary eqipment, sch as: Lids, covers, walkways & access platforms Flow splitter valves, flow meters & flanged ports Atomatic, flow proportional, single or mlti-stage chemical pre-treatment Flly containerised dosing systems Flash mixers Pipe flocclators or mixing/aging tanks Atomatic desldging systems HB10 Sldge pmps & sldge storage tanks De-watering systems HB20 HB50/FB50 HB40R Siltbster Mobile Clarifier Operating Range Flow Rate (m 3 /hr) depending on solids settling rates For hire, sales or more details call Siltbster on

6 Process Add-ons Chemical Dosing, Pre-treatment & Reaction Systems Siltbster believes that, wherever possible, the se of chemicals to treat excess site water shold be avoided. However, there are some types of waste water, contaminants and efflent which still reqire the se of chemicals to increase the particle settlement rate, so as to enable their removal. This can be de to either the presence of very fine particles; clay; colloidal matter; color or simply the soil s own interparticle electrical bonds which need to be interpted in order for settlement to occr. In sch cases, chemical dosing is navoidable. Conseqently, Siltbster has developed an extensive range of chemical dosing systems to compliment it s award-winning settlement nits. Treatment Systems Flocclant Blocks Basically, a flocclant in a solid form. When immersed in water the solid dissolves, releasing the chemicals, casing a reaction. Single-Stage & Mlti-Stage Dosing Systems Siltbster s Single-Stage dosing systems range from a single dosing pmp linked to a drm of coaglant or acid/alkali for ph adjstment, throgh to an IBC based flocclant batch makep system and associated pmped dosing. The dosing rate is flly controllable and can be linked to flow rate and chemicals can be added to mixing/reaction tanks, in-line or via pipeflocclators. For more complex dosing regimes reqiring similar levels of accracy, Siltbster offers Mlti-stage dosing systems, inclding staged coaglant and flocclant dosing, often with an intermediate stage for ph adjstment. Chemical Reaction Systems The reaction rate of treatment chemicals, dictates the system reqired. Mixing Tanks Sitlbster can spply mixing tanks, ranging from 1m 3 to 30m 3 capacity. Pipeflocclators For faster reacting chemicals, varios pipeflocclators are available. Silt Management Containerised Integrated Dosing Units Siltbster can provide secre, self-contained, in-line dosing nits which enable the controlled, flow-proportional, mlti-stage addition of treatment chemicals. For flows p to 150 m 3 /hr, the plg & play systems come pre-installed in a 10ft (3m), 20ft (6m) or 40ft (12m) shipping container, as reqired. Options inclde: Bnded chemical storage Flow-proportional dosing systems Reaction/aging tanks and pipeflocclators Control panels and datalogging Inslation, lighting and heating Integrated Lamella or DAF Units (sbject to model and size). Atomatic monitoring of feed and discharge water Fll Treatment Packages Siltbster s in-hose laboratory can test a wide range of chemicals to identify the treatment regime most sited to yor needs. A sample of the ntreated water, yor flowrate and the reqired discharge limits are all that is needed.

7 Sldge De-watering Filter Press De-watering Siltbster can spply a nmber of processes to de-water fine solids sldges prodced by de-silting projects and on-site water treatments. Siltbster s extensive hire fleet boasts a nmber of Filter Presses, ranging from 10 litre, 280 litre and p to 900 litre capacities. Also available, are larger 2,500 litre capacity nits, more commonly sed with Siltbster s Gritbster Washing Systems. As a direct means of de-watering, Filter Presses tranform solids laden slrry or sldges into a filter cake for easy handling, transportation, recycling or disposal to landfill as non-liqid waste. Siltbster can spply a Filter Press as a stand alone nit or with any ancilliary plant and eqipment, sch as feed pmps; feed pmp air compressors; agitated sldge storage tanks; sldge conditioning flocclation and pre-treatment and steel raised spport strctres. Siltbster can also ndertake pre-project laboratory testing, de-watering trials and fll installation and commissioning as part of the hire contract. Chemical Pre-treatment Siltstoppa De-watering Bags Siltbster s specialist Siltstoppa geotextile de-watering bags are low cost, low tech and ideal for de-watering fine solids sldges reslting from on-site silt and water treatment processes. Manfactred by Siltbster from specialist geotextile materials, the bags come in a variety of sizes and can be tailored to individal project reqirements. Siltstoppa De-watering Bags are available individally, to sit on a sitable slab or drainage area, or complete with their own hook-lift roll-on/roll-off RORO container, making them easy to transport for disposal. The bags can be sed on their own or as part of a complete water treatment package. How do they work? Siltstoppa De-watering Bags se passive technology, reqiring no power. The sldge is pre-flocclated to make the solids bind together and the water easily released similar to crdling milk. Using the bags is simply a case of pmping them fll of sldge and letting the bleed water drain ot throgh the geotextile fabric. The escaping water can be captred, re-sed or collected and discharged off-site. After the water has been drained ot, the Siltstoppa bag retains the de-watered solids. It can either be split open on-site and the de-watered solids removed by means of an excavator (or similar eqipment), or the fll geobags, in the RORO container, can be transported off-site for disposal. For hire, sales or more details call Siltbster on

8 Washwater Treatment RCW - Roadside Concrete Washwater Unit Lockable battery & control compartment Siltbster s concrete washwater treatment nits can help minimise environmental impact and redce costs when dealing with the disposal of high ph, cement-laden washwater. Helping yo comply with Environment Agency reglations, these innovative and integrated systems are ideal for the treatment of waste water from the cleaning of concreting plant and eqipment. The nits efficiently captre solids by means of specialised filtration bags, before netralising the highly alkaline washwater to an acceptable level for re-se or discharge. Atomatic carbon dioxide ph adjstment ph monitoring probe Inspection hatch Concrete washwater reception chambers Specialist solids de-watering bag How it works High ph (12-13) washwater from trck is discharged directly into reception hoppers. Solids and cement fines are retained by de-watering bags and allowed to hydrate. Bleed water seeps throgh de-watering bags into storage chamber beneath. Bleed water flows over weir into main treatment chamber for ph adjstment. The addition of carbon dioxide from standard indstrial cylinders is atomatically reglated by a battery powered control system. Treated water with ph of 6-9 is discharged via control valve. Bleed water seeps throgh de-watering bags for ph adjstment 1 Concrete Washwater Minimm footprint enables nits to be tilised in the tightest areas. 2 Siltbster s RCW nits have 3 been specifically designed to deal with waste water reslting from the washing of trck mixer chtes on concrete delivery lorries. Recognised by many contractors (inclding Network Rail), as Environmental Best Practice, a single RCW can comfortably handle p to 30 washots spread over a working day. This performance, copled with it s compact frame, makes the RCW the ideal soltion for a constrction site s environmental and operational needs dring concreting projects. 4 5 Carbon dioxide for ph adjstment is stored in standard indstrial gas bottles

9 Big phil Integrated Concrete Washot, ph Adjstment & Water Recyclng Unit ph Concrete washwater has a high ph and is excessively alkaline Captres waste concrete solids Netralises ph level of waste water Separates fine solids from water Big phil - the benefits Recycles treated water for washing t Oven cleaner t Concrete washwater t Hosehold bleach t Hosehold ammonia t Baking soda Accepts washwater from Drm mixers, volmetric mixers, mixer chtes, conctrete pmps, concrete crane skips, concrete agitators, batching plants, tremmie tbes and other concrete handling tools. Large, low level reception area, accessible from three sides and above. Ideal for inner city sites with tower crane concrete skips, larger scale projects and concrete pors. Concrete Washwater t Pre water (Netral) Unit specifications RCW Unit 2.8m 1.9m 2.4m 1.0 tonnes SPECIFICATIONS Big phil Length Width Overall Height Dry Weight Carcss Material 6.1m 2.4m 2.97m (inc. handrails) 4.5 tonnes Mild Steel (EN10025 S275) shotblasted to min. SA2.5 Srface Protection 2 Pack high Solids Anti-corrosive Epoxy primer; Modified Acrylic External Finish. Color: RAL5001 Ble, other colors to order Big phil washwater nit For larger scale concrete washwater treatment, the award-winning Big phil can provide the perfect answer. Featring the technologies developed for the RCW, it s new and niqe design enables the nit to accept cement-laden washwater from concrete pmps and plant eqipment, inclding crane skips p to 2000 litres capacity. Incorporating Siltbster s innovative and poplar carbon dioxide ph adjstment system, Big phil atomatically treats the washwater rn-off, captring the solids and redcing the ph of the remaining water for recycling as new washwater. The benefits of sing CO2 for ph adjstment Siltbster treatment systems tilise the innovative, yet simple, process of adding carbon dioxide to the contminated washwater in order to redce the ph. This approach provides notable advantages over traditional methods of sing acids on site, for example: Netralisation can be more accrately controlled, eliminating any risk of treated water becoming too acidic (ph less than 6.5) Health & Safety concerns are radically redced as the handling of strong acids is nnecesary. Decommissioning of the treatment system is greatly simplified as the empty/nsed carbon dioxide bottles can be retrned to the spplier. Traditional methods wold reqire the disposal of excess concentrated acid as hazardos waste. For hire, For sales hire, or sales more or details more details call Siltbster call Siltbster on +44 on (0)

10 Blast Water Treatment HD Unit DS4/FB50 Combined Treatment System Working with all the leading hydrodemolition companies in the UK, Siltbster has gained a comprehensive nderstanding of the most efficient processes for sediment removal and ph adjstment of excess blast water. The Company has developed specialist treatment systems for se in hydrodemolition. HD compact integrated nit, designed for continos operation at flow rates p to 5m 3 /hr Can be powered by internal battery or 110v external power sorce. Ideal for rban and remote locations Larger solids captred by a reseable geotextile bag. Can be removed for cleaning and emptying Carbon dioxide, from on-board cylinders, facilitates safe method of ph adjstment Atomatic Carbon Dioxide ph adjstment can be accrately reglated by the control panel Integrated Siltbster lamella clarifier efficiently settles fine blast water particlates Treated, ph netral, solids-free water is atomatic discharged from the nit via an otlet weir Internal flocclant dosing system for enhanced settlement of microfine particles & precipitates Hydrodemolition Siltbster s NEW HD Unit Developed in 2012, in direct response to cstomer reqests, Siltbster s new HD integrated nit is ideal for the treatment of high ph, sediment-laden blast water from hydrodemolition projects. The nit is compact, lightweight and low maintenance and can be sed at grond level or installed and operated from a sitable road going trailer or works van. It is ideally sited for se on road works projects which reqire the removal of all eqipment at the end of the working shift also, areas of restricted access, sch as Mlti-storey car parks etc. Siltbster DS4/FB50 Combined Treatment System The mainstay of Siltbster s Hydrodemolition systems for many years, the hgely sccessfl combination of the DS4 Carbon Dioxide Dosing System and FB50 Settlement Unit is still ideal for ph adjstment and sediment removal from hydrodemolition blast water.

11 ph Adjstment ph adjstment is an integral part of many of Siltbster s treatment processes, inclding highly alkaline concrete washwater, hydrodemolition blast water, variable ph grondwater and chemical pre-treatment (which may reqire raising or lowering the ph as part of the process). The most common form of ph Adjstment on a constrction site is that associated with cement laden water, reqiring adjstment from high ph to near netral ph. However, the ph level of any discharge off-site typically needs to be within the following limits: ph 6 to 9 for discharges to Controlled Waters (srface water/grondwater). Sbject to the reqirements of a EA/SEPA Discharge Consent. Grondwater Treatment Systems ph 5 to 10 for discharges to fol sewer. Sbject to the reqirements of a Trade Efflent Discharge Consent issed by the Local Water Utility Company. What can Siltbster do for yo? Siltbster s ph adjstment systems can help to ensre yor site Discharge Consents are achieved. Siltbster has developed a range of ph adjstment eqipment designed to atomatically adjst the ph of water to either ensre that it conforms with discharge consent reqirements or prescribed process reqirements. These nits can either be configred to raise the ph of acidic waters or more commonly redce the ph of alkaline waters (eg. concrete washwater) sing a variety of netralising agents, for example: ph increase of Acidic Waters: sing Lime or Sodim Hydroxide (castic) ph redction of Alkaline Waters: sing Mineral Acid (Hydrochloric or Slphric), Citric Acid, Carbon Dioxide Hydrodemolition & ph Adjstment For hire, sales or more details call Siltbster on

12 Separating Free Phase Hydrocarbons (oils) and water Hydrocarbons are commonly encontered on constrction sites in the form of petrolem based sbstances sch as: Petrol Diesel Kerosene Oils (Engine Oil, Lbricants, Mineral Oil etc.) To deal with oil contaminated water, Siltbster has developed its own highly sccessfl range of transportable Oil Water Separators which can accommodate a wide variety of flow rates and applications. Separation by flotation sing tilted plate technology Siltbster provides a nmber of methods for separating oil from water. Based on many years of experience, the Company can advise on the most efficient techniqe and sitable eqipment for the sccessfl removal of the hydrocarbon contaminants. Tilted plate nits provide a characteristically large separation area to allow oils to float and accmlate as a layer on the srface of the water, where they are drawn off by an oil skimmer bar. Simltaneosly, other particles (silt and sand etc), sink to the bottom of the nit for removal separately. Tilted plate nits can treat a range of flows and types of hydrocarbon contamination. Oil Water Separators Whether treating water containing light hydrocarbons which float (LNAPLs), sch as petrol, diesels and other light oils, or heavy hydrocarbons which sink (DNAPLs), sch as Creosote, Carbon Tetrachloride etc, or even a mixtre of the two, Siltbster can provide a range of eqipment and proven processes which will efficiently separate the contaminant from the liqid. Tilted Plate, Coalescing Media & Dissolved Air Flotation (DAF) Separators Siltbster offers three main mobile treatment soltions for the separation of oil and water on site, these are: Tilted Plate Separators (in both flat or hopper bottom form), for the removal of free-floating oil and light, non-aqeos phase liqids (LNAPLs). Coalescing Media Filtration in a self-contained modlar nit which works by passing the oily water throgh specialist Oleophilic media. Dissolved Air Flotation (DAF) nits, which employ the latest white water generation systems, for more difficlt to sparate oils of near netral boyancy. D N A P L t L N A P L Kg/m t Petrol 800 t Kerosene t 900 t Benzene t 1000 t Creosote Diesel Fels 1300 t Dichloromethane 1400 t 1,2, 4 Trichlorobenzene t Carbon Tetrachloride

13 Tilted plate Coalescing Media DAF Separation by coalescing media FB50-OWS HB50-OWS CM400-OWS DAF (D2 D100) Separation method: Tilted Plate Separation method: Tilted Plate Separation method: Coalescing Media Separation method: Dissolved Air Flotation Height: 1.9m Height: 3.1m Height: 1.8m Height: Varies Length: 3.7m Length: 3.7m Length: 3.7m Length: Varies Width: 1.45m Width: 1.7m Width: 1.2m Width: Varies Dry Weight: 1,975kg Dry Weight: 2,370kg Dry Weight: 1,960kg Dry Weight: Varies Types of Hydrocarbons: LNAPL & DNAPL Types of Hydrocarbons: LNAPL & DNAPL Types of Hydrocarbons: LNAPL Types of Hydrocarbons: LNAPL & some DNAPL Where flow rates exceed the capabilities of the inclined plate based nits, Siltbster s CM400-OWS can provide an efficient soltion. Incorporating coalescing media, the nit can accommodate flow rates of circa 50 3 /hr. Even at these comparitively high flow rates, hydrocarbon contaminants can be sccessflly removed. Removable Droplet Size: 60 Micron & Greater Operating Range: 0-20m 3 /hr Removable Droplet Size: 60 Micron & Greater Sediment Removal: Yes Sediment Removal: Yes Sediment Removal: No Sediment Removal: Yes Operating Range: 0-20m 3 /hr Removable Droplet Size: 10 Micron & Greater Operating Range: 0-50m 3 /hr Oil removal not dependent on droplet size Operating Range: 0-200m 3 /hr Siltbster CM400 Coalescing Media Separator Coalescing media is specifically designed to separate free phase hydrocarbons from oily water. As the contaminated water is fed throgh the Oleophilic media, the individal oil globles combine or coalesce into larger particles, increasing their overall size and boyancy. Sbseqently, they become sfficiently boyant to rise to the srface for removal. DAF Unit Dissolved Air Flotation (DAF) Units DAF nits introdce micro-fine air bbbles into the contaminated liqid. The bbbles cling to oil particles, floating them to the srface for removal by means of a series of rotating scrapers. DAF nits can float off a range of hydrophobic componds and are highly effective on both constrction and remediation sites. Oil Water Separators Conventional coalescing media has the potential to become clogged and conseqently, ineffective or less efficient. Even if sed in conjnction with a silt trap or settlement nit, sfficient minte particles may remain to inhibit performance. Siltbster s CM400-OWS, however, incorporates Q-PAC media which maximises the coalescing area, thereby, minimising the risk of clogging. The advantages: Oils of near netral density can be efficiently removed Emlsified oil can be recovered (sbject to chemical pre-treatment) Compact, low maintenance and easy-to-clean nits Atomatic removal of recovered oil prodcts For hire, sales or more details call Siltbster on

14 Gritbster UNO Constrction Site Road Sweeper Waste De-watering System The Gritbster UNO from Siltbster is a niqe modlar system. Designed to accept wet constrction site road sweepings, it de-waters the waste for easier disposal or mckaway (in accordance with a site s waste management plan) and treats the water for disposal to sewer or re-se. Siltbster Water Clarifier The Gritbster UNO is constrcted on an ISO Frame container-type base, making it easily transportable. Similar in natre to Siltbster s Gritbster Fll Recycling System (bt withot the washing, material segregation and water recycling system), the compact UNO plant can be loaded with the raw roadwaste directly from the sweeper vehicles. CM400 Oil Water Separator Gritbster UNO with vehicle access ramp Site Sweeper Waste The Process The Gritbster UNO system: Receives the fll load of wet waste from the road sweeper(s) Mechanically de-waters the granlar sweeper waste by means of a drainage wheel and spiral de-watering ager Atomatically Discharges the de-watered coarse material (into skips etc) Treats the Bleed Water and separates the fine water borne solids sing a Siltbster Clarifier before discharge to local sewer, via an Oil Water Separator De-waters the water treatment clarifier sldge by either incorporating it with the de-watered granlar material or the se of Siltbster s Siltstoppa De-watering Bags monted in a RORO container.

15 De-watering ager De-watering bcket wheel Solids and water from Road Sweepers can be tipped straight into the reception hopper De-watered solids are atomatically discharged from plant Water Treatment The UNO System comes complete with its own Siltbster Water Clarifier and Oil Water Separator as standard, along with a pre-fabricated steelwork ramp for above grond installations. Alternatively, a stone access ramp can be constrcted on site or the UNO can be inset into an excavated hole/concrete box-ot, if reqired. Siltbster HB40R Clarifier The HB40R Clarifier is a single hopper variant of the Siltbster s standard settlement nit and provides 40m 2 of settlement area in a small footprint. It is fitted with a electrically operated sldge hopper rake. Siltbster CM400 Coalescing Media Oil Water Separator (OWS) To captre any oil, petrol or other free floating hydrocarbons present in the road waste, Siltbster incldes a CM400-OWS Oil Water Separator which is connected downstream of the Water Clarifier. The Siltbster CM400 Coalescing Media Separator is a self contained nit which removes free phase hydrocarbons by passing water throgh an Oleophilic (hydrocarbon attracting) media, minimising the risk of releasing oils into the local sewer network. Recovered water goes to water treatment plant With the Gritbster UNO system, there is no longer any need to tip yor wet road sweepings in the frthest corner of yor site or pay a sbcontractor to take it away Siltstoppa De-watering Bags The sldge from the clarifier can be de-watered by means of Siltbster s Siltstoppa De-watering Bags. Site Sweeper Waste For hire, sales or more details call Siltbster on

16 Siltbster Limited Unipre Hose Wonastow Road West Monmoth NP25 5JA tel: fax: web: For hire, sales or more details call Siltbster on