全文总字数：5166字
文献综述
论城镇污水厂A2O工艺的优缺点及改进方法摘要：近年来我国经济迅速发展，工业水平显著提高，同时污水量也在逐年增加，污水量主要由居民生活废水和工业废水组成。
因此，就需要高效、节能、环保的水处理技术与之匹配，尽可能的做到零排放。
A2O工艺是一种厌氧-缺氧-好氧相结合的水处理方法，该工艺主要用于城镇污废水的处理，此工艺对污废水中的氮、磷有良好的处理效果。
A2O工艺具有出水水质优、实用性强的特点，此工艺还可以结合相关膜工艺或者人工湿地技术。
综合来讲A2O工艺具有很好的发展前景，但是仍存在一些问题亟待解决。
本文主要简述一下A2O工艺的优缺点及改进方法。
关键词：A2O工艺;脱氮除磷;水处理技术；生活污水Abstract: In recent years, China's rapid economic development, industrial level increased significantly, at the same time, wastewater quantity increased year by year, amount of sewage is mainly composed of living wastewater and industrial wastewater , therefore, requires highly effective energy conservation, environmental protection water treatment technology to match, as far as possible do zero emissions A2O process is a kind of anaerobic - anoxic - aerobic combined method of water treatment, the technology is mainly used for urban sludge wastewater treatment, the process of sludge in the wastewater of nitrogen and phosphorus has a good processing effect A2O process is out of the water quality The characteristics of strong practicability, this process can also be combined with relevant membrane process or artificial wetland technology Generally speaking, A2O process has a good development prospect, but there are still some problems to be solved. This paper mainly describes the advantages and disadvantages of A2O process and improvement methods.Key words :A2O process; Denitrification and dephosphorization; Water treatment technology; sewage0引言随着我国经济水平的不断提升，人民的生活质量有了很大的提升，各类工业也在迅速发展，与此同时就会产生大量的生活废水、工业废水以及城市垃圾，相应处理垃圾和污泥产生的渗滤液和污泥处理系统废水等高负荷废水也随之增多，会造成难降解有机物含量大，污水厂的传统处理方式很难达到排放标准。
『1』A2O工艺是一种有效脱氮除磷工艺的水处理工艺，也是我国应用较为广泛的水处理技术。
国家生态环境部统计数据显示，截止到2020年投入运行的4436座城镇污水处理设施中，以A2O工艺作为处理技术的占比高达26.26％。
以上是毕业论文文献综述，课题毕业论文、任务书、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
