腐殖活性污泥耦合A-OSA工艺处理污水效能研究  

Study on Wastewater Treatment Efficiency of Humic Activated Sludge/A-OSA Process

作　　者：桑磊[1] 尹军[1] 张居奎[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《中国给水排水》2016年第21期122-126,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07201-001)

摘　　要：为了开发一种既能降低污泥产率,又能保证污水处理效果的污泥减量技术,通过对比运行试验,考察了A/O脱氮工艺与OSA工艺的耦合工艺(A-OSA工艺)、腐殖活性污泥工艺与A-OSA工艺的耦合工艺(HS-A-OSA工艺)的污泥减量效果以及对有机物和营养盐类的去除效能。结果表明,HS-A-OSA工艺的平均表观污泥产率为0.13 g MLSS/g COD,比相同条件下AOSA工艺的污泥产率低23.5%;在有机物去除方面,HS-A-OSA工艺优于A-OSA工艺;通过腐殖活性污泥在好氧区的同步硝化和反硝化作用、物理化学和生物协同除磷作用,HS-A-OSA工艺对NH+4-N、TN和TP的平均去除率分别比A-OSA工艺高5.93%、9.6%和9.4%。In order to develop a technology with less sludge production and better wastewater treat- ment performance, the sludge reduction and nutrients removal by A/O ＋ OSA （A-OSA process） and humic activated sludge ＋ A/O ＋ OSA （HS-A-OSA process） were compared..The results showed that the average Yobs of HS-A-OSA process was 0.13 gMLSS/gCOD, which was 23.5% lower than that of A- OSA process in the same conditions. HS-A-OSA process had an advantage over A-OSA process in COD removal. The average removal rates of NH4＋ - N, TN and TP by HS-A-OSA process were 5.93%, 9.6% and 9.4% higher than that by A-OSA process through simultaneous nitrification and denitrification in aer- obic zone as well as physical, chemical and biological synergistic phosphorus removal.

关 键 词：腐殖活性污泥 A-OSA工艺 污泥减量 脱氮除磷 

分 类 号：X703[环境科学与工程—环境工程]