Liquid purification or separation – Processes – Treatment by living organism
Patent
1997-04-09
1999-01-19
Upton, Christopher
Liquid purification or separation
Processes
Treatment by living organism
210615, 210621, 210630, 210150, 2101951, 210903, C02F 330
Patent
active
058610952
ABSTRACT:
A wastewater treatment system substantially reduces wastewater treatment time and increases treatment capacity. The system includes at least one completely covered aerobic reactor cell and a completely covered quiescent anaerobic reactor cell. The system can also include a polishing reactor for further treating wastewater after treatment by the anaerobic reactor cell. The covered aerobic reactor cell preferably includes a pair of subcells in which a first cell includes continuous mixing and aeration of the wastewater and the second cell includes only intermittent mixing and aeration of the treated wastewater. The sytem optionally includes a completely covered anoxic reactor cell for treating wastewater prior to treatment by the completely covered aerobic reactor cell. The anoxic reactor cell receives partially treated wastewater recirculated from the polishing reactor.
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Lemna Corporation, "Floating Modular Cover Systems", published prior to Apr. 9, 1997.
"If you think natural treatment systems are limited in scope . . . It's time to look at a Lemna.RTM. System," 1992.
Pidaparti Surya R.
Vogel Steven M.
Lemna Corporation
Upton Christopher
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