摘要：

碳源不足是污水处理中常见问题，添加低成本高效碳源对降低污水处理成本至关重要。通过模拟和应用实验，对一种新型高能碳源在污水处理中的效能进行了探究。结果表明，该碳源以有机钾盐替代钠盐，不含氯离子和As、Pb、Cd等污染元素，具有环境友好的特点。该碳源的应用能够有效降低污水中的COD、TN、TP和NH₄⁺-N，污染物的整体去除效率优于使用传统的乙酸钠碳源。使用该碳源的吨水处理碳源成本比乙酸钠低56.5%，具有良好的应用前景。

关键词: 复合碳源, 生物柴油副产物, 乙酸钠, 反硝化

Abstract:

Insufficiency of carbon source is a common problem in sewage treatment. Adding low-cost and high-efficiency carbon sources is essential to reduce the cost of sewage treatment. Through simulation and application experiments, the efficiency of a new high-energy carbon source in sewage treatment was investigated. The results showed that this carbon source used organic potassium salt instead of sodium salt, and did not contain chloride ions and pollution elements such as As, Pb, and Cd, with environmental friend characteristics. The application of this carbon source could effectively reduce COD and the concentrations of TN, TP and NH₄⁺-N of the sewage. And its overall removal efficiency of various pollutants was better than adding traditional sodium acetate carbon source. By using this carbon source, the cost of carbon source for treating a ton of sewage is 56.5% lower than that of sodium acetate, which has an excellent prospect for application.

Key words: composite carbon source, by-product of biodiesel, sodium acetate, dinitrification

中图分类号: 

• X703