Highsludge~工艺中氮的沿程变化与同步脱氮研究  

Transformation of Nitrogen and Simultaneous Nitrification and Denitrification in Highsludge~ Process

作　　者：何俊[1] 张永丽[1] 周克钊[2] 周建忠[2] 程鹏[2] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]中国市政工程西南设计研究院,四川成都610081

出　　处：《中国给水排水》2009年第13期38-40,共3页China Water & Wastewater

摘　　要：采用Highsludge工艺处理城市污水,考察了氮的沿程变化与同步脱氮情况。结果表明,在第二好氧池中只发生了硝化作用,总氮无明显的下降;而在第一好氧池中总氮有明显的下降,去除率在16.8%～62.3%变化,平均去除率为33.19%,表明在该池中发生了明显的同步脱氮反应。该工艺的除污效果良好,对COD、BOD5、TN、NH4+-N的去除率分别为95%、96%、84%和82%,且污泥沉降性能良好,并未因污泥浓度高而发生丝状菌污泥膨胀、沉淀池污泥上浮等现象。Highsludge process was used to treat municipal sewage, and the nitrogen change and the simultaneous nitrification and denitrification （SND） were investigated. The nitrification occurs only in the second aerobic tank, and the total nitrogen is not significantly decreased. In the first aerobic tank, the total nitrogen is significantly decreased, and its removal rate varies from 16.8% to 62.3% with an average of 33.19%, showing an obvious SND phenomenon. The process has good pollutant removal effi- ciency. The removal rates of COD, BODs, TN and ammonia nitrogen are 95%, 96%, 84% and 82% respectively. The sludge settleability is good, and the sludge bulking and floatation do not happen.

关 键 词：Highsluge工艺 同步硝化反硝化 污泥沉降性能 

分 类 号：X703[环境科学与工程—环境工程]