Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1995-12-29
1997-04-01
Wyse, Thomas G.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210141, 210182, 2101951, 210202, 210205, 2102211, C02F 330
Patent
active
056162405
ABSTRACT:
In a method and a device for sewage purification, sewage is purified by continuously passing it through several stages of treatment, wherein the passage of sewage is regulated by a process control device and is monitored by sensors. Treatment ensues in physical processing stages, pre-flotation stages, two-step biological clarification stages and one post-flotation stage. The pre-flotation stages as well as the biological clarification stages are each provided with gas-water mixers, and the pre-flotation stages, the biological clarification stages and the post-flotation stage are provided with solid foam separators having outlet channels. Clear water from a clear water overflow basin is supplied to the individual stages through the gas-water mixers and through a clear water return pipe. It is also possible to provide chemical treatment prior to biological clearing, to provide clear water recycling for additional treatment, and to provide solids treatment and a reduction stage. An aquatritor, a bioreactor and a four chamber system are also provided. This method is also suitable for use in a portable device having a compact construction.
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Greenberg Laurence A.
Lerner Herbert L.
Stemer Werner H.
Wyse Thomas G.
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