多级高浓度自浓缩活性污泥法脱氮除磷研究

随着经济的发展和人们环境意识的提高,对N,P的控制越来越受到重视.在此简要介绍了“多级高浓度自浓缩活性污泥法脱氮除磷”新工艺.新工艺可在基本不增加投资、对二沉池基本没有影响的情况下,使传统活性污泥法工艺在BOD,COD保持较高的去除率的同时,具备良好的脱氮、除磷功能,较适合采用传统活性污泥法工艺的污水厂的改造.

A Study on Multilevel High Concentrations and Auto-concentrating Activated Sludge Technology to Achieve Nitrogen and Phosphorus Removal

With the development of economy and inprovement in envinnment consciousness,contral of nitrogen and phosphorus must be regarded more and nore. The article introduced the new process "removing nitrogen and phosphorus by multievel high concentrations and auto-concentrating activated sludge technology" in brief.The process didn't need new investment and had no effect on secondary sedimentation tank on the whole. On condition of application of the new process,BOD and COD removal rate became higher with traditional activated sludge process, while nitrogen and phosphorus removal also became well.Finally it was conclued that the new process was suitable to rebuilding of wastewater treatment which adopted the traditional activated sludge process.