Liquid purification or separation – Processes – Treatment by living organism
Patent
1988-12-19
1991-10-15
Wyse, Tom
Liquid purification or separation
Processes
Treatment by living organism
210617, 210631, 210747, 210908, 435250, 435267, C02F 334
Patent
active
050572210
ABSTRACT:
Methylotrophic and heterotrophic microorganisms are supported on a rigid substrate bed. Oxygen, such as from air, and a low-molecular-weight alkane, such as methane, flow through the bed. Organic compounds in contaminated water processing through the bed are biodegraded by the microorganisms. The bed may be formed of manufactured particlate material, such as of activated carbon. These bed-forming materials may be preloaded with organic carbon materials to provide a nutrient source for the microogranisms. The biological reactor may continuously treat effluent from, for example, an industrial plant, in either a batch or continuous process. A water solids removal subsystem may be positioned upstream of the biological reactor to remove organic carbon compounds and various solids from the contaminated water prior to treatment. Optional bed cleaning mechanisms may also be included in the biological reactor. A methane gas source for the biological reactor may comprise a methanogenic microorganism-containing second reactor which uses liquid from the first biological reactor as a carbon and energy source.
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Barkley William A.
Bryant Curtis W.
Weyerhaeuser Company
Wyse Tom
LandOfFree
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