分质预处理-ABR-A/O工艺处理抗生素制药废水

Treatment of Antibiotic Pharmaceutical Wastewater by the Separate Pretreatment Based on Water Quality-ABR-A/O Process

某制药企业根据抗生素制药废水成分复杂、浓度高、生物毒性强的特点,将废水分成高盐废水、高浓废水和生物发酵废水三类,分质收集并进行预处理。高盐废水采用MVR蒸发器进行脱盐预处理,高浓废水采用微电解+Fenton+混凝沉淀工艺进行预处理。分质预处理后的废水与生物发酵废水混合进入生化段,生化段采用ABR+MBBR(A)+MBBR(O)组合工艺,A/O池内均投加悬浮生物填料,增加污泥浓度,提高处理效率。运行结果表明,此工艺针对性强、处理效果稳定、耐冲击负荷能力强,经处理后出水水质可达到园区污水处理厂接管标准。

According to the characteristics of complex pollutants composition,high concentration and strong biological toxicity of antibiotic pharmaceutical wastewater in a pharmaceutical factory, wastewater was divided into three kinds such as high salt wastewater,high concentration wastewater and biological fermentation wastewater.Then,each kind of wastewater was collected and separate pretreated according to quality.High salt wastewater was pretreated with MVR evaporator for salt removal,and the high concentration wastewater was pretreated with micro electrolysis +Fenton +coagulation sedimentation process.The mixture of pretreatment effluent and the biological fermentation wastewater entered the biological treatment section.The combined process of ABR +MBBR (A)+MBBR (O)was adopted in the biological treatment section.A/O tank was added with the suspension biological carriers to increase the sludge concentration and to improve the treatment performance.The operation results showed that the process had the advantages of strong pertinence,stable treatment effect and strong tolerance to impact load.After treatment,the effluent could meet the acceptance standards of the wastewater pipe network of the park.