ABSTRACT
In California, liquid and semi-solid wastes are effectively banned from all classes of solid waste landfills by the revised regulation for the discharge of waste to land. Generators of nonhazardous wastes not suitable for direct sewer disposal will be particularly impacted by the measures and will be forced to seek alternative methods of waste disposal. Moreover, it is important to sewerage agencies that alternative disposal methods be available since a poorly maintained clarifier or grease trap will allow solids and oil and grease to carry over to the sewer, thus increasing costs for sewer cleaning and increasing incidents of sewer clogging and sewage overflow. The blended wastewater is pumped to a corrugated plate separator (CPS) where ferric sulfate is added to coagulate the oil and grease. A centralized waste treatment facility provides the desired alternative for treating and disposing of nonhazardous wastes removed from interceptors and grease traps.
