Liquid purification or separation – Processes – Treatment by living organism
Patent
1987-12-09
1990-12-04
Fisher, Richard V.
Liquid purification or separation
Processes
Treatment by living organism
210613, 210768, 210774, 210180, 210182, 210188, 210259, C02F 102
Patent
active
049751956
ABSTRACT:
A method and apparatus for processing trap waste and the like into its component solids and liquids treatable in a sewage treatment plant includes a cooker, a solids separation system, and a digester. The cooker liquifies and renders trap waste obtained from, for example, restaurant traps by maintaining the waste at an elevated temperature and an elevated pressure to sterilize and separate the trap waste into solid and non-solid portions thereof. The solid separation system removes the solid and particulate matter from the liquified trap waste for disposal, preferably after washing the solids with treated water from the sewage treatment plant. The separated non-solid portion of the rendered trap waste is then communicated to a digester for either aerobic or anaerobic degradation; the digest is thereafter treated to remove additional solids. The remainder of the treated trap pumpings can then be processed in a sewage treatment plant with munipal or industrial sewage. Gases and vapors escaping the trap waste are recovered and cleaned by condensation, scrubbing, and/or incineration prior to release to the atmosphere.
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Fisher Richard V.
Industrial Service Corporation
Upton Christopher
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