反硝化除磷颗粒污泥的培养与除磷性能  

Culture and Phosphorus Removal Property of Granular Sludge for Denitrifying Phosphorus Removal

作　　者：李军[1] 张宇坤[1] 韦甦[1] 王亚宜[2] 马骁[1] 彭永臻[3] 

机构地区：[1]浙江工业大学建筑工程学院,杭州310014 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092 [3]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124

出　　处：《北京工业大学学报》2012年第3期456-461,共6页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(50878195);北京市教育委员会科技创新平台资助项目(PXM2008_014204_050843);浙江省重点科技计划资助项目(2008C23083)

摘　　要：以普通絮状污泥为接种污泥,人工配制生活污水,采用厌氧/缺氧/好氧的运行方式,通过在缺氧段投加硝酸盐氮和控制选择压,经98 d的培养与调整在SBR中获得具有反硝化除磷功能的颗粒污泥.稳定运行的颗粒污泥粒径主要在0.3～0.5 mm,SVI约为45 mL/g,ρ(MLSS)约为4 000 mg/L.具有反硝化除磷功能的颗粒污泥对COD、氨氮和磷酸盐的去除率分别可达88%、96%和90%.通过分析磷的去向及X射线衍射检测结果可知存在颗粒污泥的磷酸盐沉淀除磷现象.培养的反硝化除磷颗粒污泥除生物除磷外,还具有磷酸盐固化于污泥颗粒方式除磷.The granular sludge for denitrifying phosphorus removal is successfully formed in a sequencing batch reactor （SBR） fed with synthetic wastewater, by controlling the operational modes of anaerobic/ anoxic/aerobic, anoxie addition of the nitrate, and selection pressure. The granular sludge turns into ashape with a diameter of 0.3 to 0.5 mm, and sludge volume index （SVI） and mixed solid （MLSS） are maintained at 45 mL/g and 4 000 rag/L, respectively, during the The granular sludge for the denitrifying phosphorus removal also shows a good nutrient re steady moval suspended operation. capability,with the COD, ammonia nitrogen and phosphorus removal effieiencies of 88%, 96% and 90%, respectively. The fate of phosphorus and the X-ray diffraction test results suggest the existence of granular sludge phosphate precipitation phosphorus removal phenomena. Granular sludge for the denitrifyingphosphorus removal in the experiment uses biological phosphorus removal, and it also has phosphorus removal through phosphate precipitation in granular sludge.

关 键 词：除磷 反硝化除磷 颗粒污泥 选择压 

分 类 号：X703.1[环境科学与工程—环境工程]