Application of High Efficiency Sedimentation Tank+Denitrification Filter Combined Process in Aquaculture Wastewater Treatment
Based on the treatment of aquaculture wastewater from a freshwater fish pond in Foshan,Guangdong,this paper adopts the combined process of high-efficiency sedimentation tank and denitrification filter to treat aquaculture wastewater,which has the characteristics of large fluctuation of water quality and quantity,low carbon to nitrogen ratio and high content of suspended matter,so as to achieve nitrogen,phosphorus and SS removal.The results show that the average concentrations of CODMn,SS,NH4+-N,TP and TN in the effluent are 8.82 mg/L,15.98 mg/L,0.73 mg/L,0.13 mg/L and 2.25 mg/L,respectively.The effluent quality meets DB44/2462—2024 Aquaculture Tail Water Discharge Standard.Therefore,the combined process is used for aquaculture wastewater treatment,and has a good removal capacity for pollutants.
high efficiency sedimentation tankdenitrification filternitrogen & phosphorus removalaquaculture wastewater
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