Liquid purification or separation – With time control – Of additional fluid
Patent
1992-08-17
1993-08-03
Silverman, Stanley S.
Liquid purification or separation
With time control
Of additional fluid
210141, 210142, 210143, 210177, 210178, 210179, 210180, 210187, 210188, 210202, 210205, 210209, 210218, 210219, 210220, 210295, 210251, B01D 5334, B01D 5314, B01D 1114, B01D 3364
Patent
active
052325849
ABSTRACT:
The present invention relates to a multi-stage, single reactor, purification system for disinfecting, washing, and concentrating solid wastes, which include contaminated soil, highly concentrated biosolids, spent animal bedding, and spent diapers, etc.
A solid waste is fed into the reactor of this invented apparatus. At least one disinfecting and chemical agent (including cationic surface active agent known as quaternary ammonium compound) is fed together with water (as needed) into this reactor to disinfect and process said solid waste with the assistance of a mechanical mixing means inside said reactor. A disinfecting gas is fed to the same reactor as needed. After the period of feeding, disinfecting, processing, and mixing is over, the process water is drained. The disinfected and processed wet solid waste is discharged to an expulsion chamber means which removes residual water and compacts the disinfected and processed solid waste.
The drained process water and the removed residual water are discharged either into a municipal sewer system for proper disposal, or into a chemical neutralizer means for pretreatment before its sewer discharge, or for production of a fertilizer aid containing nitrogen and phosphorus.
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Wang Lawrence K.
Wang Mu H. S.
International Environmental Systems, Inc., USA
McCarthy Neil M.
Silverman Stanley S.
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