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Water and Sanitation Emergency Response Unit (Wat-San ERU) Treatment and Supply Module TS1 Wat-San ERU Treatment and Supply Module INDEX Page No. Contents TS2. Index TS3. General description TS4. General Arrangement Drawing TS5. Pipework Sizes Drawing TS6. The Pumping System TS13. The Storage Tank System TS19. Link Pipework Connections TS21. The Water Distribution System TS26. Bladder Tank System TS29. Main Components and Packing Lists TS31. Detailed Parts List of Each Sub-Kit TS2 Wat-San ERU Treatment and Supply Module S Purpose To provide safe drinking water for up to 40,000 beneficiaries in emergency situations. S Capacity S The module has the maximum capacity to treat, supply and store up to 600,000 litres of water per day. S The water quality meets WHO/SPHERE drinking water standards. S The module comprises two identical treatment and supply lines that can be erected on adjacent or different sites as the situation requires, plus four bladder tanks for separate water storage if required (i.e. at a clinic). (Each supply line provides for 20,000 beneficiaries). S Principal tasks S Raw water is pumped from a water source to large storage tanks where sedimentation takes place. S The water then passes to a further tank where chemical treatment is carried out prior to being distributed via flexible pipework to tapstands where the beneficiaries can draw the water. S The module caters for a distance of up to 250m from water source to distribution points with the distribution points located up to 160m apart. S The module has been designed to enable local requirements (i.e. ground profile, water source types) to be accommodated. S The distribution system may be gravity fed or pumped. S The distribution system can include cattle watering and fire fighting. S It is intended that this module will be erected quickly using trained technicians. However, spares are supplied for up to two years use and adaption equipment is supplied so that the system can be developed if required to form part of a larger water treatment centre for long term use. S Sub-Kits The module is made up for a number of sub-kits. Each is individually boxed, complete with all necessary pipe and fittings, tools, spares and instruction sheets required for their assembly on site. S Indicative staffing patterns 1 team leader (Wat-San engineer) 4 general technicians (technician, plumber, electrician, chemical engineer) 1 logistician (optional) S Average weight and volume Module complete: Volume: 45m3 Weight: 11,000 kgs. Single line: Volume: 26m3 Weight: 6,000 kgs. Note: Treatment chemicals are classed as hazardous cargo. Only initial treatment chemicals are sent with the equipment so local purchase will need to be organised. When considering the deployment of this module, consideration should be given for also deploying a Mass Sanitation Module TS3 Wat-San ERU Treatment and Supply Module General Arrangement Drawing showing 2 Treatment Lines Pipework Sizes Drawing Pumping pipework P P 2” pump kit 70m3 70m3 70m3 70m3 2 x 70m3 tank kit Link pipework kit 3 95m 95m3 95m3 tank kit 2” pump kit P P 3 5m 5m3 1 x 5m3 transport and storage bladder kit 3 10m 10m3 1 x 10m3 storage bladder kit Distribution pipework 6 x tapstand kits Supplied with: S Adaption and Spares Kit S Pumping Oil and Tool Kit S Additional pipe (for use where required) S Tank and Pipework Tool Kit S Chemicals S Chlorination Kit S Water testing equipment TS4 Wat-San ERU Treatment and Supply Module showing 1 Treatment Line only Pipework Sizes Drawing Pumping pipework Pumping pipework 3" suction/ P supply hose, total 60 metres 70m3 70m2 Link pipework kit 10m Link pipework 3” suction/ 95m3 max. supply hose, total 30 metres Pumping pipework 3” suction/ supply hose, total 60 metres P 5m3 Supplied with 5m3 bladder 3” suction/supply hose, total 15m 10m3 Supplied with 10m3 bladder 3” suction/supply hose, total 15m Distribution pipework 63mm MDPE pipe, total 160m Supplied with tapstand 32mm MDPE pipe, total 12m Supplied with: 1 S Extra 3” suction/supply hose is available for use wherever it is required plus 100m of 2 /2” layflat hose. S A full range of spares and adapters are supplied for use wherever required and for connection to any other system. TS5 The Pumping System This comprises:- 1 x 2” heavy duty water pump powered by a diesel engine with spares for 2 years running. 1 x pumping pipework kit giving suction pipe, discharge pipe and bypass pipework 1 x tool kit (all tools required to set up and maintain system and pump) with fuel can and funnel with filters plus pump and engine oil. The system limitations are:- C Max. suction lift 8m C Max. pressure head: 28m C Max. flow: 700litre/minute C Pressure relief set at: 2.5 BAR There are two complete systems used in each line of the Treatment and Supply Lines. One for pumping from the water source to the treatment tanks and a second for pumping treated water. Another pump is provided as a spare, which can be used for pumping water between the tanks if required. Pumping Kit Distribution side set up Supply side set up Suction Side ½” by pass strainer To tank 3” reinforced hose with 3” Storz at pump end Chemical collection Pump (2”) fitted with 3” Storz on suction side and gate valve and 3” Storz on discharge. Pump has 2.5 bar relief valve fitted on discharge side. Relief Pressure valve relief 3” reinforced hose with 3” Storz at pump end Double elbow for fitting over tank rim Discharge side TS6 Suction Line Setting Up a Chemical Suction Line Outlet Inlet Suction on/off valve Pump Suction line 12mm hose Container When using suction dosing ensure pump is running correctly with suction valve in off position. Then open suction valve slowly to reduce initial amount of air being sucked. Do not suck air When dosing container is empty, purge pump and suction line with clean water as concentrated aluminium sulphate or chlorine will damage the pump internals if left. Setting up a By-pass Inlet line 1” gate valve ‘T’ piece ½” hose (10m min.) By-pass connection Outlet Inlet Pump Use a by-pass in all applications where the pump may operate against a closed system The pump vent is designed to initially blow at 2.5 BAR. The by-pass gate valve should be set so that the system pressure does not exceed 2 BAR. TS7 The Heavy Duty Pump Details Swallow 5100 2” General Purpose Self-Priming Contractors Pump with Lombardini 15LD315 Diesel Engine Heavy Duty D Potable Water Supply D Solids Handling 14mm Pump Centrifugal self-priming pump in cast iron construction with integral non-return valve, semi open clog resistant impeller, carbon/ceramic mechanical seal, renewable rubber coated wearplate and screwed BSP male suction and discharge connections. Engine Lombardini 15LD315 single cylinder 4 stroke air cooled diesel engine developing 4.2 kW at a nominal 3600 rpm complete with recoil start, 4.3 litre (4 hrs. running) fuel tank, throttle control, replaceable element air, fuel and oil filters and exhaust silencer. Mounting Pump and engine are close coupled together and mounted on a fabricated steel baseplate. Note: S Alternative pumps with similar performance specifications may be used. However, they should be diesel powered. S If an alternative pump is used, check that the Pumping Tool and Oil Kit is still suitable. S Spares for 2 years use. TS8 Pump Installation Instructions Pumping from a water source to storage 1. Pumps are supplied with foot-valves, coarse strainers and reinforced flexible suction hose. The length should be kept as short as possible in order to increase efficiency. Cut hose with a hacksaw as square as possible to aid fitting to connectors. Push the hose fully on to the connector (using pipe grease as a lubricant) and fit the clip close to the end of the hose. It is important that the washer supplied is used with female hose couplers and that PTFE tape is used to seal all threaded joints. All joints on the suction side of the pump must be completely air-tight otherwise the pump will not operate. 2. The delivery connection to the storage tank is made entirely using flexible hose. If connecting to a storage tank the inlet may be made by using the standard 3” flange connector assembly, to which the hose may be coupled directly, or, as shown here, by passing over the rim of the tank. 3. A gate valve is provided to act as a throttle if it is wished to reduce the pump yield because of insufficient inflow to the water source. This valve will also aid in priming the pump if it is closed after pump operation and opened after restarting. A non-return valve should be included to reduce back flow through the pump. 4. It is very important that the pump is securely fixed to the ground. This is best done by casting a concrete slab, preferably at least 150mm greater all round than the base plate and at least 150mm thick to avoid cracking. The anchor bolts supplied with the pump should be cast into the slab. Alternatively, the pump may be bolted to heavy timbers, which are themselves pegged to the ground. The packing case bottom sections are designed as temporary foundations and can be used initially. The inlet and outlet hoses should be supported close to the pump in order to prevent damage to the connections through vibration. These supports should be put in place as soon as possible unless the installation is temporary.