摘要：

以光合混菌PB-Z为阳极菌，在室温、自然光照和静置的环境下以高浓度淀粉废水为基质，探讨微生物燃料电池（MFC）的处理效果，并通过更换氮源、优化氮源浓度和添加Ca²⁺的方式进行改善。结果表明，PB-Z在初试实验中，COD去除率为61.84%，TN去除率为62.89%。更换氮源、优化氮源浓度和添加Ca²⁺都可以提升其COD的去除率，确定了最佳氮源为氯化铵，最佳氨氮浓度为6 mmol/L和最佳Ca²⁺质量浓度为30 mg/L，优化后的COD去除率为94.64%，氨氮去除率为70.13%，为MFC处理淀粉废水的工业化提供了实验基础。

关键词: 高浓度淀粉废水, 微生物燃料电池, 光合混菌, 自然条件

Abstract:

Under conditions of room temperature, natural light and static environment, the treatment effect of microbial fuel cells was discussed by using photosynthetic mixed bacteria PB-Z as anode bacteria and the high-concentration starch wastewater as the substrate. In addition, the treatment effect was improved by replacing the nitrogen source, optimizing the concentration of the nitrogen source, and adding calcium ions. The results showed that in the initial test, the COD degradation rate was 61.84%, and the TN degradation rate was 62.89% by PB-Z. COD removal rate can be increased by replacing the nitrogen source, optimizing the concentration of nitrogen source and adding calcium ions. The optimum nitrogen source was determined as ammonium chloride, the optimum concentration of ammonia nitrogen was 6 mmol/L and the optimum concentration of Ca²⁺ was 30 mg/L. The optimized COD removal rate was 94.64%, and the ammonia nitrogen removal rate was 70.13%. This study provides an experimental basis for industrialization of starch wastewater treatment by MFC.

Key words: high concentration starch wastewater, microbial fuel cell, photosynthetic mixed bacteria, natural conditions

中图分类号: 

• X703.1