混凝预处理/ABR/SBR工艺处理米粉废水

Treatment of Rice Flour Wastewater by Coagulation Pretreatment/ABR/SBR Process

针对米粉废水有机污染物和悬浮物浓度都较高的水质特点,采用混凝预处理/ABR/SBR组合工艺处理米粉废水。系统运行结果表明:对COD、BOD5、SS和氨氮的去除率分别达到98%、97.5%、82.6%和86.7%,出水各项指标均达到《污水综合排放标准》(GB 8978—1996)的二级排放标准,取得了较好的环境和经济效益。

Based on the high concentrations of organic pollutants and suspended solids in rice flour wastewater, the combined process of coagulation pretreatment, ABR and SBR was adopted to treat the wastewater. The operation results showed that the removal rates of COD, BOD5 , SS and ammonia nitro-gen were 98%, 97.5% , 82.6% and 86.7% respectively. The effluent quality met the second class cri-teria specified in the Integrated Wastewater Discharge Standard （ GB 8978 - 1996 ）. The good environ-mental and economic benefits were achieved.