城镇二级出水深度脱氮研究进展  

Research Progress in Tertiary Nitrogen Removal from Secondary Effluent of Wastewater Treatment Plants

作　　者：刘宗杨 程庆锋[1] 刘盛余[1] LIU Zongyang;CHENG Qingfeng;LIU Shengyu(College of Resources and Environment,Chengdu University of Information Technology,Chengdu 610225,China)

机构地区：[1]成都信息工程大学资源环境学院,四川成都610225

出　　处：《水处理技术》2021年第12期8-12,18,共6页Technology of Water Treatment

基　　金：国家自然科学基金青年基金项目(51808062);四川省科技厅重点研发项目(2019YFS0474)。

摘　　要：为了增强深度脱氮能力,提升城镇二级出水质量,分析对比了反硝化滤柱(池)、反硝化移动床生物膜反应器、人工湿地系统在处理城镇污水厂出水的研究进展,围绕各方法的重要影响因素(如填料、碳源种类等)展开探讨,分析了各方法的优缺点,总结了该方向各种处理技术的实用性及创新点。认为深度反硝化技术中反硝化滤池(池)是适用条件最广、处理效率最稳定、经济效益最高的技术,其中利用固体碳源的异养反硝化滤柱技术具有高处理率、出水稳定、节约成本、管理方便等优点,是值得推荐应用于工程实践的创新方法。In order to improve the capacity of tertiary nitrogen removal and the quality of municipal secondary effluent,the research progress of denitrification filter column(pool),de-nitrification moving bed biofilm reactor,and constructed wetland system in the treatment of municipal wastewater were discussed.The critical influencing factors of each method(such as filler,carbon source type,etc.)were proposed.Meanwhile,the advantages and disadvantages of each method,the practicality,and the innovation of various processing technologies in this direction were summarized.The conclusions showed that the de-nitrification filter(pond)in the deep de-nitrification technology was the one with the widest applicable conditions,the most stable treatment efficiency,and the highest economic benefit.Additionally,the heterotrophic de-nitrification filter column technology which applies solid carbon sources has advantages of high removal rate,stable effluent,cost savings,and convenient management.Therefore,this innovative technology is worth recommending and applying to engineering practice.

关 键 词：反硝化 城镇二级出水 人工湿地 固体碳源 异养反硝化 

分 类 号：X703.1[环境科学与工程—环境工程]