ERU WATSAN MOD 15 SETA Water treatment plant

ERU WATSAN MOD. 15 SETA Water treatment plant maintenance

WATSAN M 15 ERU SETA Water treatment plant maintenance Contents 1. Generator 2. Submergible pump 3. Flocculation tank 4. Centrifugal pump 5. Silex and carbon filters 6. Dosing pumps and chemical solution tanks 7. Maintenance form 2

WATSAN M 15 ERU 1. Generator SETA Water treatment plant maintenance

WATSAN M 15 ERU See generator presentation SETA Water treatment plant maintenance

WATSAN M 15 ERU SETA Water treatment plant maintenance 2. Submergible pump

WATSAN M 15 ERU SETA Water treatment plant maintenance READ MANUFACTURER INSTRUCTIONS

WATSAN M 15 ERU Maintenance free Submergible pump Pumps water to the plant Flow rate: 5 – 60 l/min Max H: 58 m. SETA Water treatment plant maintenance

WATSAN M 15 ERU SETA Water treatment plant maintenance Fix the rope to the hole at the head of the submersible pump and place it into the water source (tank, river, lake, well, etc). If the river bed is muddy you should prepare a cage to protect the submersible pump or, if possible, prepare a stone and gravel bed to place it on. Take out the pump on daily basis in order to remove any possible debris settled at the intake of the pump. Never use the electric cable or the flexible hose to carry or to hang the submergible pump.

WATSAN M 15 ERU SETA Water treatment plant maintenance 3. Flocculation tank

WATSAN M 15 ERU SETA Water treatment plant maintenance Flocculation tank (1400 l. ) 3 compartments

WATSAN M 15 ERU SETA Water treatment plant maintenance It is recommended to maintain a layer of 5 cm of sludge at the bottom of the tank to improve the flocculation process. It is not advisable to carry out a complete cleaning unless the plant is stored for a long period. The frequency to clean the tank will depend on the amount of solids in the raw water. Nevertheless, from time to time you should remove excessive quantity of sludge from the bottom of the tank by opening the valves of the drainage pipes connected to the lower part of the tank and the drainage valve at the front of the WTP. Take into account that the effluents of the sedimentation chamber could be toxic.

WATSAN M 15 ERU SETA Water treatment plant maintenance 4. Centrifugal pump

WATSAN M 15 ERU See centrifugal pump presentation SETA Water treatment plant maintenance

WATSAN M 15 ERU SETA Water treatment plant maintenance 5. Silex and carbon filters

WATSAN M 15 ERU SETA Water treatment plant maintenance Active carbon filter Silex filter

WATSAN M 15 ERU SETA Water treatment plant maintenance READ MANUFACTURER INSTRUCTIONS

WATSAN M 15 ERU SETA Water treatment plant maintenance Silex and carbon filters They require regular cleaning through washing and backwashing. It is necessary to substitute the carbon after 3, 000 hours or a year of operation. There are caps to empty and fill the filter.

WATSAN M 15 ERU SETA Water treatment plant maintenance 6. Dosing pumps and chemical solution tanks

WATSAN M 15 ERU SETA Water treatment plant maintenance Dosing pump Chlorine solution (To the flocculation tank) Dosing pump Chlorine solution (To the rapid mixer) Dosing pump Alumiium sulphate solution (To the flocculation tank)

WATSAN M 15 ERU SETA Water treatment plant maintenance READ MANUFACTURER INSTRUCTIONS

WATSAN M 15 ERU SETA Water treatment plant maintenance Dosing pumps Weekly check the flow of the dosing pumps. It is easy to do by timing how long it takes to fill a bottle of 1 l. As theoretical flow of the dosing pumps is of 5 l/h, it would take (with the regulator at 100%) 12 minutes to fill it. Try it also at 50% to check the regulator.

WATSAN M 15 ERU SETA Water treatment plant maintenance Chemical solution tanks They have to be taken off and cleaned thoroughly every 500 hours or when we observe any sludge at the bottom of the tank that prevents the suction pipe of the dosage pump to work properly.

WATSAN M 15 ERU SETA Water treatment plant maintenance 7. Maintenance form

WATER TREATMENT PLANT SETA Model Number Date of donation See complete form Water meter reading (litres) Date of reading Hour meter reading Date of reading Operative Non Operative Generator Nº Records of the plant (Write a brief summary of operations) 24

WATSAN M 15 ERU SETA Water treatment plant maintenance Thank you……….