低碳源城市污水生物处理方法研究进展

Research progress of biological treatment of low carbon source municipal sewage

如何提高低碳源污水的除磷脱氮效果,已成为城市污水处理的难题。许多研究学者从降低碳源无效利用或减少处理过程中除磷脱氮对碳需求2个角度进行研究。一方面开发先进工艺诸如同时硝化反硝化、反硝化除磷等;另一方面进行工艺优化从而达到提高低碳源污水的除磷脱氮效率的目的。详细介绍了生物除磷脱氮新工艺与优化工艺中出现的问题及解决措施,并对这些研究进展情况进行了总结。

How to improve the removal efficiency of nitrogen and phosphorus in low carbon source water has become a difficult problem in the treatment of municipal sewage.Many researches have been carried out from two aspects： decrease uneffective utilization of carbon source,decrease carbon demand during the period of nitrogen and phosphorus removal.For the puopose of improving the removal efficiency of nitrogen and phosphorus in the water with low carbon source,on one hand,advanced technologies,such as： simultaneous nitrification-denitrification,denitrification-dephosphorization and so on were developed,on the other hand,many traditional processes were modified.The existing problems of the new technologies and the modified processes were pointed out with the solving measures proposed at the same time,and then,the latest progresses of the above researches were summarized.