污水短程脱氮工艺中亚硝酸盐积累的影响因素

被引：17

作者：

支霞辉 ^{[1
]}

黄霞 ^{[1
]}

李朋 ^{[2
]}

薛涛 ^{[1
]}

王晓慧 ^{[1
]}

机构：

[1] 清华大学环境科学与工程系,环境模拟与污染控制国家重点联合实验室

[2] 北京科技大学环境工程系

来源：

中国环境科学 | 2009年 / 05期

关键词：

短程硝化反硝化; 氨氧化菌; 亚硝化率; 积累;

D O I：

暂无

中图分类号：

X703 [废水的处理与利用];

学科分类号：

083002 ;

摘要：

采用主要由厌氧-好氧-缺氧构成的短程脱氮工艺,进行了常温条件下处理生活污水的实验.分析了DO、游离氨(FA)等因素对亚硝酸盐积累的影响.结果表明,DO是影响短程硝化的主要因素,控制好氧1区的DO在1.5～2.5mg/L、好氧2区的DO在0.5～1.0mg/L,可以实现稳定的亚硝酸盐的积累,氨氮去除率达到90%.对氨氧化菌(AOB)进行T-RFLP群落分析表明,该工艺运行中的AOB优势菌种为Nitrosomonas oligotropha culster.

引用

页码：486 / 492

页数：7

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