污水生物脱氮除磷技术的研究进展

Developing Trends of Technologies for Nitrogen and Phosphorus Removal from Wastewater by Biological Processes

氮、磷去除率不达标造成水体的富营养化是世界各国面临的最大挑战之一,已被各国政府高度重视。本文简要介绍了生物脱氮除磷的基本原理,着重分析了运用短程硝化反硝化、厌氧氨氧化、反硝化除磷技术的工艺:SHARON工艺、CANON工艺、ANAMMOX工艺、SHARON与ANAMMOX联合工艺、DEPHANOX工艺、BCFSR○工艺的机理和研究进展。同时指出经济、高效、低能耗的可持续脱氮除磷工艺是污水处理的发展方向。

Being one of the biggest challenges in every country,the low removal rate of nitrogen and phosphorus cause water eutrophication and that has been seriously taken into consideration.This paper reviews briefly the mechanism of biological nitrogen and phosphorus removal.Based on short distance nitrification denitrifica-tion,ANAMMOX and denitrifying dephosphorization,the technological mechanisms and process of SHARON,CANON,ANAMMOX,joint SHARON and ANAMMOX,DEPHANOX and BCFS~ are studied in this article.The development process of biological nitrogen and phosphorus removal towards economy,efficiency and low energy consumption is pointed.