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研究了微电解耦合生物增浓工艺在制药废水处理工程中的应用,工程处理流量28 m~3/h。对于高含量制药废水,在优化微电解反应条件下,COD去除率平均在39.1%。微电解后的制药废水再与低含量废水混合进入水解酸化,去除约30%的COD。水解酸化出水进入生物增浓池,生物增浓池内的污泥质量浓度达10~15 g/L以上,最终出水稳定,COD<300 mg/L,NH_3-N的质量浓度<35 mg/L,满足GB 8978-1996的三级排放标准。
The application of microelectrolysis coupled bioconcentration process in pharmaceutical wastewater treatment was studied. The engineering treatment flow rate was 28 m ~ 3 / h. For high-volume pharmaceutical wastewater, COD removal efficiency averaged 39.1% under optimized micro-electrolysis conditions. After the micro-electrolysis of pharmaceutical wastewater and then mixed with low levels of waste water into the acidification, removal of about 30% of COD. Hydrolysis and acidification of water into the biological enrichment tank, the biosolvation tank sludge mass concentration of 10 ~ 15 g / L or more, the final effluent stability, COD <300 mg / L, NH_3-N concentration of <35 mg / L, Meet the GB 8978-1996 three emission standards.