eru watsan mod. 15 seta water treatment plant maintenance
TRANSCRIPT
ERU WATSAN MOD. 15
SETA Water treatment plant maintenance
WATSAN M15 ERUWATSAN M15 ERUSETA Water treatment plant maintenance
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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
Contents
WATSAN M15 ERUWATSAN M15 ERUSETA Water treatment plant maintenance
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1. Generator
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See generator presentation
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2. Submergible pump
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READ MANUFACTURER INSTRUCTIONS
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Submergible pumpPumps water to the plant
Flow rate: 5 – 60 l/minMax H: 58 m.
Maintenance free
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Never use the electric cable or the flexible hose to carry or to hang the submergible pump.
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.
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3. Flocculation tank
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Flocculation tank (1400 l.)3 compartments
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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.
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4. Centrifugal pump
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See centrifugal pump presentation
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5. Silex and carbon filters
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Active carbon filter
Silex filter
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READ MANUFACTURER INSTRUCTIONS
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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.
Silex and carbon filters
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6.Dosing pumps and chemical solution tanks
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Dosing pumpChlorine solution
(To the rapid mixer)
Dosing pump Chlorine solution
(To the flocculation tank)
Dosing pumpAlumiium sulphate solution (To the flocculation tank)
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READ MANUFACTURER INSTRUCTIONS
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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 the 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.
Dosing pumps
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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.
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7. Maintenance form
WATER TREATMENT PLANT SETA
Model Number
Date of donation
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)
See complete form
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Thank youThank you……….……….