ERU WATSAN MOD. 15 SETA Water treatment plant maintenance.

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ERU WATSAN MOD. 15

SETA Water treatment plant maintenance

WATSAN M15 ERUWATSAN M15 ERUSETA Water treatment plant maintenance

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

1. Generator

See generator presentation

2. Submergible pump

READ MANUFACTURER INSTRUCTIONS

Submergible pumpPumps water to the plant

Flow rate: 5 – 60 l/minMax H: 58 m.

Maintenance free

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.

3. Flocculation tank

Flocculation tank (1400 l.)3 compartments

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.

4. Centrifugal pump

See centrifugal pump presentation

5. Silex and carbon filters

Active carbon filter

Silex filter

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

6.Dosing pumps and chemical solution tanks

Dosing pumpChlorine solution

(To the rapid mixer)

Dosing pump Chlorine solution

(To the flocculation tank)

Dosing pumpAlumiium sulphate solution (To the flocculation tank)

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

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.

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

Thank youThank you……….……….

ERU WATSAN MOD. 15 SETA Water treatment plant maintenance.

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