物化预处理+厌氧+两级A/O工艺处理农药废水

采用物化(电催化氧化、铁炭微电解)预处理高、中浓度混合废水后,利用厌氧+两级A/O工艺处理综合废水,处理量为300 m3/d。运行实践表明:物化预处理对COD的去除率为32%,整个工艺处理后出水COD低于500 mg/L,氨氮低于35 mg/L,盐分低于0.6%,出水水质达到接管要求,工艺处理效果明显。

Treatment of pesticide wastewater by physicochemical pretreatment+ anaerobic+two-stage A/O process

After the physicochemical pretreatment process (electrochemical oxidation,ferric-carbon microelectrolysis) was used for the pretreatment of the wastewater with mixed high and medium concentrations,the anaerobic + two-stage A/O process has been used for the treatment of comprehensive wastewater.The designed treatment capacity is 300 m3/d.The operation results show that by physicochemical pretreatment the removing rate of COD could reach 32％,and the whole process treated effluent COD is lower than 500 mg/L,ammonia-nitrogen lower than 35 mg/L,and salinity lower than 0.6％.The water quality of the effluent can meet the take-over requirements.The effect of technological treatment is obvious.