剩余污泥酸性发酵释磷影响因素研究进展  

Research progress on factors affecting phosphorus release from excess sludge by acid fermentation

作　　者：孙卫宁 韩盼 李夏桐 杨林 周凯乐 程刚[1] SUN Wei-ning;HAN Pan;LI Xia-tong;YANG Lin;ZHOU Kai-le;CHENG Gang(Faculty of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710600,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710600

出　　处：《应用化工》2023年第7期2239-2243,共5页Applied Chemical Industry

基　　金：陕西省科技计划项目(2019GY-163);西安市科技计划项目(20SFSF0012);西安工程大学产学研用项目(2020KJ234)。

摘　　要：围绕剩余污泥中磷的形态及释放特性,阐述了污水生物除磷工艺和化学协同除磷方法对磷形态差异的影响,分析了剩余污泥水解与酸化两个关键阶段的磷释放转化机制,明确了水解酶、产酸菌、温度与外加碳源等因素主要通过影响酶活性、微生物代谢活动与生长速率改善酸性发酵效能,进而提升对磷的释放速率和转化效率。通过归纳总结,指出了研究中存在的争议并展望了今后发展的方向。Focusing on the form and release characteristics of phosphorus in the surplus sludge,this paper expounds the influence of biological phosphorus removal process and chemical synergistic phosphorus removal method on the difference of phosphorus form,analyzes the phosphorus release and transformation mechanism in the two key stages of hydrolysis and acidification of the surplus sludge,and clarifies that the factors such as hydrolase,acid producing bacteria,temperature and additional carbon source mainly improve the acid fermentation efficiency by affecting the enzyme activity,microbial metabolic activity and growth rate,thereby improving the release rate and conversion efficiency of phosphorus.By summing up,the paper points out the existing disputes in the research and looks forward to the future development direction.

关 键 词：剩余污泥 厌氧 发酵 水解 释磷 影响因素 

分 类 号：TQ353[化学工程] TQ033[环境科学与工程—环境工程] X705