ARCHIVED REPORTS_1988_1 - Laserfiche WebLink

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Facility Description An aqueous waste treatment facility bears some resemblance to a typi - cal _municipal sewage treatment plant. A sketch of a typical facility is presented in Appendix E. Liquids contaminated with hazardous waste are transported to a treat- ment facility from a transfer station, a liquid organics recovery facility, or (at times) directly from a large waste-generating indus- try. Various processes are then employed to remove heavy metals, reactive ions, and organic matter. Acid and alkaline wastes undergo pretreatment in separate unloading basins. The segregated wastes are then neutralized and/or oxidized to precipitate metals or to detoxify selected chemicals. Treated wastewater effluent is discharged either to a sewer or to an evaporation pond. The sludges that are formed either are sent to an incinerator, to a biological waste converter, or are stabilized for subsequent land disposal . Air pollution control techniques are implemented to control air emis- sions, and containment facilities are designed to prevent releases of wastewater to surface or ground water. Monitoring of air emissions and local ground water is practiced as appropriate (as required in the facility's operations permit) . Monitoring may be required by the RWQCB on a case-by-case basis. A small liquid waste treatment facility might be sited on only 3 acres, while a large facility might require 30 acres. From 15 to 40 trained workers are needed to run the facility, depending on the size of the plant. A large facility can treat up to 200,000 tons of _ liquid wastes annually. Truck traffic would typically range between 12 to 14 trucks per week for a small facility and 120 to 230 trucks per week for a large plant. PJ9 93905020.000 11-15 Rev. 1 11/08/88