摘要：

采用电-生物耦合技术处理制药废水，研究极板间距不变时电压对COD去除效果的影响，对最佳电压下阴、阳极处的生物膜以及0 V时生物膜的微生物种群多样性进行分析，研究电场作用下微生物的多样性变化。结果表明，电压为10 V时COD去除效率最高。10 V时反应器阴、阳极板两侧生物膜和0 V时生物膜的菌落多样性呈较大差异。电-生物反应器极板附近的优势菌群耦合电氧化作用，可协同处理制药废水中的难生化降解有机物，提高对制药废水COD的去除率。

关键词: 制药废水, 耦合系统, 生物降解, 电氧化

Abstract:

Using electro-biological coupling technology to treat pharmaceutical wastewater, the effect of voltage on COD removal effect under the condition of constant plate spacing was researched. The microbial population diversity of the cathode biofilm and anode biofilm at the best voltage and that of 0 V was studied. The bacterial community changes under the action of electric field were also investigated. The results showed that the highest COD removal efficiency was obtained at 10 V. The bacterial diversity of the biofilm on both sides of the anode plate and the cathode plate at 10 V showed a big difference with that of the biofilm at 0 V. The dominant community near the electrode plate of the electric bioreactor coupled with the electrooxidation, which could synergistically treat the refractory organics in the pharmaceutical wastewater. Thereby the removal efficiency of the COD of the pharmaceutical wastewater was improved.

Key words: pharmaceutical wastewater, coupled system, biodegradation, electrooxidation

中图分类号: 

• X703