生物处理在我国城镇污水处理中的运用

摘要:如今，生物处理技术以低成本、无污染等符合环保理念的特点引起了当今污水处理界的关注。在城镇污水二级处理工艺中，一般以活性污泥法为主。本文对现今国内采用的生物处理技术进行分析，并阐述了相关的生物处理技术。并提出深度处理的重要性。

关键词：生物处理技术；二级处理；深度处理

Application of biological treatment in urban sewage treatment in China

Absrtact : Nowadays, the biological treatment technology has attracted the attention of the sewage treatment field because of its low cost, no pollution and other characteristics that accord with the concept of environmental protection. In the secondary treatment process of urban sewage, In this paper, the biological treatment technology used in our country is analyzed, and the related biological treatment technology is expounded, and the importance of advanced treatment is put forward.

Keywords: Biological treatment technology ; Secondary treatment ; Polishing process

1 引言

世界上任何国家的经济发展，都伴随着人民生活水平的改善和城市化进程的不断加快，但是相应的淡水资源的需求和消耗也在不断增多^[1]。我国可饮用的总水量为28124.4亿m3，人均占有仅2300 m3，只为世界人均的1/4，为美国的1/6，为日本的1/8，被列为世界上最缺水的13个国家之一^[2]。