Liquid purification or separation – Processes – Treatment by living organism
Patent
1997-05-19
1999-09-28
Lithgow, Thomas M.
Liquid purification or separation
Processes
Treatment by living organism
210609, 210610, 210703, 210716, 210705, 210708, 210723, 210724, 210738, 210802, 210805, 210806, 2101951, 210196, 210199, 210205, 210206, 2102212, 2102571, 210259, 210294, 210295, 210167, 210695, 210223, 210522, C02F 900, C02F 124, C02F 152, C02F 148
Patent
active
059582405
ABSTRACT:
An apparatus and method for treating waste water to generate clarified water for reuse in industrial processes which includes the steps of adding agents to the waste stream to generate floccules, aerating the waste stream to cause a portion of the floccules to float, decanting floating floccules and lighter than water immiscible pollutants from the top surface of the waste stream, directing the waste stream through an incline clarifier so as to permit heavier than water floccules to form sludge in a bottom region of the clarifier. Sludge and decanted pollutants are sent to a bioremediation tank where hydrocarbons are decomposed and the remaining sludge is dewatered and compacted to a solid condition for disposal in a public waste facility. The clarified water is transferred to a steam generator or pressurized water delivery system for reuse. The invention is particularly useful for equipment cleaning operations such as in truckyards or airports.
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Lithgow Thomas M.
Samuel Smith Robert
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