QUALITY AND TREATABILITY OF SEAFOOD PROCESSING WASTEWATER USING COAGULATION–FLOCCULATION

摘要: : Introduction: Seafood processing wastewater, containing high concentrations of pollutants discharged to receiving waters will reduce the quality water resources. The present study was conducted assess and treatability wastewater fish market in Bandar Abbas using coagulation – flocculation process. Methods: In this cross-sectional study, 12 composite sample from market Abbas were selected randomly. Variables effluent were TSS, COD, BOD5, pH, TP, TKN FOG. Using jar test apparatus, appropriate coagulant was chosen. Then coagulant dose pH optimized. Data analyses based on measures central tendency dispersion performed SPSS Software. Results: results revealed that FOG, TP 1200 mg/L, 1760 330 280 104 mg/L 45.8 respectively. These indices 46, 28, 8, 18, 24 2 times respectively greater than maximum allowable concentration levels for industrial discharge waters. Also results, poly aluminum chloride at optimum 150-17mg/L, efficiency COD removal 75%-90%, ferric 200-250mg/L, 70%-90%, ferrous sulfate with 250-300mg/L, 80%-90%, alum optimal 250-300mg/L, 60%-70%. Optimum values chloride, chloride, 6-7, 5-6, 5-7 Conclusion: order prevent pollution coastal Persian Gulf originated Abbas, it is essential treat wastewater. Based the findings process can significantly of It seems choosing type coagulants optimum environmental considerations are important.