Highsludge_工艺中氮的沿程变化与同步脱氮研究_何俊

Highsludge_工艺中氮的沿程变化与同步脱氮研究_何俊技术总结Highsludge·工艺中氮的沿程变化与同步脱氮研究何俊1,张永丽1,周克钊2,周建忠2,程鹏2(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)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、NH+4-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。关键词:Highsluge·工艺;同步硝化反硝化;污泥沉降性能中图分类号:X703文献标识码:C文章编号:1000-4602(2009)13-0038-03TransformationofNitrogenandSimultaneousNitrificationandDenitrificationinHighsludge·ProcessHEJun1,ZHANGYong-li1,ZHOUKe-zhao2,ZHOUJian-zhong2,CHENGPeng2(1.CollegeofArchitectureandEnvironment,SichuanUniversity,Chengdu610065,China;2.SouthwestMunicipalEngineeringDesignandResearchInstituteofChina,Chengdu610081,China)Abstract:Highsludge·processwasusedtotreatmunicipalsewage,andthenitrogenchangeandthesimultaneousnitrificationanddenitrification(SND)wereinvestigated.Thenitrificationoccursonlyinthesecondaerobictank,andthetotalnitrogenisnotsignificantlydecrease