含盐量对好氧颗粒污泥结构及处理效能的影响  

Effect of Salinity on Aerobic Granular Sludge Structure and Treatment Efficiency

作　　者：王立东[1] 李志华[1] 王晓昌[1] 闫静[1] 王耀东[1] 刘娜[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院

出　　处：《中国给水排水》2008年第11期19-22,共4页China Water & Wastewater

基　　金：国家自然科学基金资助重大国际合作项目(50621140001);国家高技术研究发展计划(863)项目(2006AA06Z328)

摘　　要：研究了含盐量对好氧颗粒污泥结构的影响。研究发现高含盐量有助于提高颗粒污泥的沉速,减小孔隙率,从而形成更加密实的颗粒结构。对比结果表明,在低含盐量下颗粒污泥容易形成中空结构,这是低含盐量下颗粒污泥孔隙率大的根本原因。但高含盐量下形成的菌胶团颗粒污泥容易被丝状菌颗粒污泥所取代,因此控制丝状菌的过度繁殖是采用好氧颗粒污泥处理高盐度有机废水时需要注意的问题。The effect of salinity on the structure of aerobic granular sludge was investigated. It is found that the granular sludge cultured under a high salinity has higher settling velocity, lower porosity and more compact structure. Voids can be found in the granular sludge formed under low salinity, which may be the main reason for the high porosity of granular sludge under low salinity. However, the zoogloeal granular sludge formed under high salinity may be substituted by the filamentous granular sludge. Therefore, particular attention should be given to controlling the excessive proliferation of filamentous bacteria when using aerobic granular sludge for treatment of wastewater with high salinity.

关 键 词：好氧颗粒污泥 含盐量 沉降性能 孔隙率 

分 类 号：X703.1[环境科学与工程—环境工程]