Removes most of the remaining small suspended solids in the effluent, to make the water more suited for re-use in irrigation, truck wash, etc.
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Keeps the sand bed clean when in operation.
The level sensor in the inlet distribution compartment monitors the fouling of the sand filter. This level sensor first adjusts the auger speed of the sand washer. When it reaches its maximum speed it will proceed by closing the intake valve, enabling the sand washers to catch up with sand cleaning.
After the auger speed and water level have dropped to their minimum levels, the water intake is resumed.
Sand washers travel horizontally over the sand bed ensuring even distribution of the sand over the sand bed.
A multimedia filter that removes suspended solids and part of the COD from the water.
Ensures maximum killing power at the lowest possible power consumption while maximizing the operation life of the UV lamps.
Continuously measures COD and suspended solids in the pretreated water.