生物除磷颗粒污泥与絮状污泥特性的对比研究  

Characteristic Comparison between Granular Sludge and Flocculent Sludge for Biological Phosphorus Removal

作　　者：刘静伟[1] 周荣华 王琪[1] 郭念城 殷逸红[1] 刘小英[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]中建三局二公司安装分公司,湖北武汉430000 [3]南宁建宁水务投资集团有限责任公司,广西南宁530031

出　　处：《中国给水排水》2012年第1期63-67,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(2008ZX07317-002);武汉理工大学自主创新研究基金资助项目(2010-Ⅳ-053;116606001);第三批国家大学生创新性实验计划项目(091049729)

摘　　要：以絮状生物除磷污泥为参照,对生物除磷颗粒污泥的物理、化学、生物特性和除磷特性进行系统研究。结果表明:生物除磷颗粒污泥呈淡黄色,外观呈球形或椭球形,边界光滑清晰,沉降速度在15～20 m/h左右,含水率为95.94%,相对密度为1.193,粒径在0.3～0.5 mm之间,SVI值在50 mL/g以下,颗粒污泥最大比释磷速率和最大比吸磷速率分别为104.43、44.72 mgP/(gVSS.h),污泥中总磷含量(TP/SS值)为7.4%;絮状生物除磷污泥呈淡黄色,结构紧密,污泥含水率为97.65%,相对密度为1.040,最大比释磷速率和最大比吸磷速率分别为104.82、42.43 mgP/(gVSS.h),TP/SS值达到9.5%。生物除磷颗粒污泥具有较强的除磷能力和优良的物理、化学、生物性能。With reference to flocculent sludge, the physical, chemical and biological characteristics as well as phosphorus removal characteristics of granular sludge were studied. The results show that the granular sludge is characterized with light yellow color, globular or ellipsoidal shape, smooth and clear surface, settling velocity of 15 to 20 m/h, water content of 95.94%, relative density of 1. 193, diameter of 0.3 to 0.5 mm and SVI of below 50 mL/g. Its maximum specific phosphorus release rate and maximum specific phosphorus uptake rate are 104.43 mgP/（gVSS · h） and 44.72 mgP/（gVSS ·h） respectively, and the TP content of MLSS （TP/SS） is 7.4%. The flocculent sludge is characterized with light yellow color, compacted shape, water content of 97.65%, and relative density of 1. 040. Its maximum specific phosphorus release rate and maximum specific phosphorus uptake rate are 104.82 mgP/ （gVSS · h） and 42.43 mgP/（gVSS · h） respectively, and the TP/SS is 9.5%. The granular sludge for biological phosphorus removal has good phosphorus removal capacity and physical, chemical and biological characteristics.

关 键 词：生物除磷 颗粒污泥 絮状污泥 特性 

分 类 号：X703[环境科学与工程—环境工程]