分流预处理—兼氧串联好氧工艺处理农药废水

Treatment of Pesticide Production Wastewater by Split Flow Pretreatment/Facultative Aerobic Tandem Process

针对农药生产废水污染物种类多、成分复杂、毒性大等特点,采用分流预处理—兼氧串联好氧工艺进行处理。结果表明,该系统对无机盐、有机磷、COD、NH3-N等均有很好的去除效果,分流预处理对保证后续生物处理系统的正常运行起到了重要的作用。处理出水水质达到广东省地方排放标准《水污染物排放限值》(DB 44/26—2001)的二级排放标准,系统年污水处理成本为68.5万元。

Pesticide production wastewater is of numerous sorts of pollutants, complicated elements, high toxicity, etc. The split flow pretreatment/facultative aerobic tandem process was used to treat this wastewater. The results show that the process can effectively remove inorganic salt, organic phosphorus, COD, NH3 -N, etc. The split flow pretreatment plays an important role in ensuring the normal operation of following biological treatment system. The treated effluent quality can meet the second class criteria specified in Discharge Limits of Water Pollutants （ DB 44/26 - 2001 ） in Guangdong Province. Annual wastewater treatment cost of the system is 685 000 yuan.