黄水为碳源的颗粒污泥除磷机理研究

Phosphorus Removal Mechanism of Granular Sludge with Yellow Water as Carbon Source Study

颗粒污泥作为近年来备受关注的一种生物处理技术,具有结构密实、沉降性好、生物相丰富且活性高等优点。为了了解好氧颗粒污泥除磷机理,以黄水为碳源的同步脱氮除磷颗粒污泥为研究对象,研究颗粒污泥的物理特性、除磷特性,重点研究颗粒污泥中磷的形态及含量,同时研究不同方法对颗粒污泥胞外聚合物(EPS)的提取效果及其对磷去除的影响,揭示该颗粒污泥的除磷机理,为城市污水利用同步脱氮除磷颗粒污泥实现高效低耗除磷提供理论与技术支持。

Granular sludge, as a biological treatment technology concerned in recent years, has compact structure, good settling ability and perfect biological activity. In order to understand the mechanism of phosphorus removal of aerobic granu- lar sludge which is fed by the yellow water, the physical characteristics and the phosphorus removal characteristic of granular sludge are seriously studied, especially the shape and content of phosphorus in granular sludge. Meanwhile the different ex- traction methods and the effects on the phosphorus removal of extracellular polymeric substances （EPS） are also studied. The phosphorus removal mechanisms of granular sludge are described, which provides theoretical and technical support for the realization of high efficiency and low consumption phosphorus removal in urban sewage using granular sludge for simultaneous removal of nitrogen and phosphorus.