Apparatus and process for treating contaminated water

Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy

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Details

204149, 204180R, 204228, C02B 182

Patent

active

041233417

ABSTRACT:
The water treatment apparatus is provided with one or more turbidity meters in the inlet line to the electrocoagulator and the outlet line from the flotation stage. The voltage across the coagulator electrodes is controlled in response to a controller which receives signals from the respective turbidity meters. When the turbidity increases in either the inlet line or outlet line, the voltage is increased and when the turbidity decreases, the voltage decreases. In addition, upon an increase in voltage above a top limit, compressed air is charged into the coagulator while the rate of flow of recycled sludge is increased. Also, the pressure in the coagulator is maintained during operation of the air compressor.

REFERENCES:
patent: 3975247 (1976-08-01), Stralser
patent: 4001100 (1977-01-01), Havdock
patent: 4045326 (1977-08-01), King

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