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DISSOLVED AIR FLOTATION TREATMENT OF GULF SHRIMP CANNERY WASTEWATER
Citation:
Szabo, A., L. LaFleur, AND F. Wilson. DISSOLVED AIR FLOTATION TREATMENT OF GULF SHRIMP CANNERY WASTEWATER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-79/061 (NTIS PB295630), 1979.
Description:
This study reports on the operation of a plant scale dissolved air flotation system installed to define and evaluate attainable shrimp cannery wastewater treatment levels. The system was operated in all three modes of DAF pressurization. Destabilizing coagulants investigation included alum, lignosulfonate(PRA-1) and cationic polymer(507-C). Using alum and anionic polymer 835A as a coagulant aid, significant removals of BOD, TSS and Oil and Grease were achieved. Operating data are presented which characterize the Gulf shrimp cannery wastewaters and show the removals attained. Data on oyster processing wastewaters are also presented. In conjunction with the project, water use reduction and wastewater management practices were instituted at the study cannery resulting in large overall reductions of pollutants. Costs of the wastewater treatment system installation, operation and maintenance are presented.