三维电解-厌氧-生物接触氧化组合工艺处理医药废水的研究

The Research of Pharmaceutical Wastewater by Three-dimensional Electrolysis-anaerobic-biological Contact Oxidation Process

采用三维电解-厌氧-生物接触氧化组合工艺对医药研发废水进行处理,通过单因素实验探讨了初始pH值、反应时间和电流密度对废水处理效果的影响,明确了三维电解处理废水的最优参数。结果表明,三维电解最佳反应条件:初始pH值为3.0,反应时间为90 min和电流密度为40 mA/m^2,此条件下通过三维电解的作用能够分解转化废水中有机污染物,ρ(BOD_5)/ρ(COD)由0.121提高到0.380。三维电解-厌氧-生物接触氧化组合工艺在处理医药研发废水时可获得连续稳定的处理效果,出水水质均达到GB 8978—1996《污水综合排放标准》三级标准的要求,为医药研发废水处理的工程化提供了基础依据。

A three-timensional electrolysis-anaerobic-biological contact oxidationprocesswas conducted to treat pharmaceutical wastewater. The optimal conditions for the three-dimensional electrolysis were investigated by the experiments. The results show that the optimal pH, reaction time and Current density by the three-dimensional electrolysis treatment are 3.0, 90min and 40 mA/nl2, the three-dimensional electrolysis can decompose and transform the toxic refractory organic pollutants and increase the ρ（BOD5）/ρ（COD） ratio from 0.121 to 0.380, continuous and steady treatment effects can be obtained when this process is used for treating pharmaceutical wastewater. The effluent wastewater reaching the thirdly standard of the Upes of integrated wastewater discharge standard （GB 8978-1996）. This study provide fundamental basis for engineering application of the pharmaceutical wastewater treatment.