Abstract: The combined process,micro-electrolysis-UASB-biological contact oxidation,has been used for treat-ing pharmaceutical wastewater. The optimal parameters of micro-electrolysis treatment of wastewater are defined. The start-up methods for anaerobic reactor and biological contact oxidation bioreactor are discussed. The results show that the optimal reaction conditions for micro-electrolysis are as follows:influent pH is 3.0,and reaction time 2 hr. Under these conditions,the micro-electrolysis action can decompose and convert the organic pollutants in wastewater,improving the B/C in wastewater from 0.121 to 0.310. Stable treatment effects can be obtained by this combined process. Both COD and ammonia nitrogen of the effluent can meet the requirements for the 3rd-level standard specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).

Key words: pharmaceutical wastewater, ferric-carbon micro-electrolysis, UASB, biological contact oxidation

摘要： 采用铁碳微电解-UASB-生物接触氧化组合工艺对制药废水进行处理，明确了微电解处理废水的最优参数，探讨了厌氧反应器及生物接触氧化反应器的启动方法。结果表明，微电解最佳反应条件：进水pH为3.0，反应时间为2 h，此条件下通过微电解作用能够分解转化废水中的有机污染物，使废水中的B/C由0.121提高到0.310。微电解-UASB-生物接触氧化组合工艺在处理制药废水时可获得稳定的处理效果，出水COD及氨氮等均达到《污水综合排放标准》（GB 8978-1996）三级标准的要求。

关键词: 制药废水, 铁碳微电解, UASB, 生物接触氧化

CLC Number: 

• X703