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采用两相厌氧-生物接触氧化-矿化垃圾人工湿地床系统处理养猪场粪污水,处理水量为20 m~3/d。运行结果表明,在设计条件下,出水水质稳定,最终出水COD为64 mg/L,氨氮为40.3 mg/L,TN为53.1 mg/L,TP为5.5 mg/L,SS为33.3 mg/L,基本达到《畜禽养殖业污染物排放标准》(二次征求意见稿)。气浮出水可直接用于灌溉养殖场内农业种植区,剩余小部分水经矿化垃圾人工湿地处理后排放。
The two-phase anaerobic-biological contact oxidation-mineralization wetland wetland bed system was used to treat the pig manure sewage with a treated water volume of 20 m 3 / d. The results showed that the effluent quality was stable under the designed conditions. The final effluent COD was 64 mg / L, ammonia nitrogen was 40.3 mg / L, TN was 53.1 mg / L, TP was 5.5 mg / L, SS was 33.3 mg / L, Basically reached “livestock and poultry breeding pollutant discharge standards” (second exposure draft). Floating water can be directly used for irrigation in farms in the agricultural areas, the remaining part of the water by the mineral waste wetland disposal after discharge.