Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1974-08-19
1976-06-22
Hart, Charles N.
Liquid purification or separation
With means to add treating material
Directly applied to separator
210219, 210220, 210242A, C02C 110
Patent
active
039650090
ABSTRACT:
In an installation for the biological purification of effluent at least two basins linked with each other are used. The effluent to be purified is supplied to one basin to introduce oxygen into the effluent. The effluent enriched in this manner with oxygen is supplied after an average residence time to the second basin acting as the final purification basin. The purified water is removed from the said second basin, until the activated sludge concentration in the first basin drops below a certain value, following which the direction of operation is changed, so that the second basin functions as the activated sludge basin and the first basin as the final purification basin connected in series.
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Hart Charles N.
Spitzer Robert H.
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