臭氧投量对污泥水解酸化过程的影响  

Effect of Ozone Dosage on Sludge Hydrolysis Acidification

作　　者：赵玉鑫[1] 杨静[1] 张军军[1] 蒋宝军[1] 韩相奎[1] 

机构地区：[1]吉林建筑大学市政与环境工程学院松辽流域水环境教育部重点实验室,吉林长春130118

出　　处：《中国给水排水》2016年第9期123-126,共4页China Water & Wastewater

基　　金：国家自然科学基金青年基金资助项目(51208226)

摘　　要：采用臭氧预处理剩余污泥，通过检测污泥上清液中挥发性脂肪酸（VFA）、含氮和含磷化合物的变化，考察臭氧投量对污泥水解酸化过程的影响。结果表明，臭氧可以有效地破坏细胞壁，加快污泥水解酸化进程，缩短污泥水解酸化时间。综合考虑处理成本和水解酸化效率，臭氧投量应以使污泥微生物细胞壁刚刚破裂为宜，在试验条件下，臭氧的最佳投量为54．0～77．0mg／gTS，污泥水解酸化停留时间以2～3d为宜。The process of sludge hydrolysis acidification was investigated when excess sludge was pretreated by different amounts of ozone. The changes of volatile fatty acid （VFA）, nitrogenous com- pounds and phosphorus compounds were observed during the whole process. The results indicated that ozone could effectively break the cell wall of microorganisms in excess sludge to promote the process of sludge hydrolysis acidification and reduce the sludge retention time. Considering the treatment cost of sludge and the efficiency of hydrolysis acidification, the ozone dosage should be an appropriate value that could break the cell wall of microorganisms in excess sludge. In this experiment, the optimum ozone dosage was 54.0 to 77.0 mg/gTS and the sludge retention time was 2 to 3 d.

关 键 词：剩余污泥 臭氧预处理 水解酸化 隐性生长 细胞破裂 

分 类 号：X703[环境科学与工程—环境工程]