Liquid purification or separation – Automatic control – Thermal
Patent
1989-05-08
1990-07-10
Jones, W. Gary
Liquid purification or separation
Automatic control
Thermal
210184, 210207, 210538, 210539, 210608, 210632, C02F 302, E03F 516
Patent
active
049405390
ABSTRACT:
A grease trap construction comprising a housing having an inlet to receive waste water containing grease and foreign material and having an outlet. An air conduit having a plurality of outlet ports spaced along its length is located in the lower end of the housing and is connected to a source of air under pressure, so that air will be discharged through the ports into contact with the waste water. The waste water within the housing is heated by an electric heating element which is immersed in the waste water and the heating element is controlled by a thermostat to maintain the temperature of the waste water within a given range. An aqueous composition containing a mixture of enzymes and bacterial spores is introduced into the housing into contact with the waste water. The enzymes and bacterial spores act on the grease, fats and other material in the waste water to provide a substantial reduction in total solids and an increase in soluble solids, as well as a substantial reduction in the BOD level of the waste water.
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Jones W. Gary
Semco Laboratories, Inc.
Upton Christopher
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