论文部分内容阅读
采用生物预处理+常规与常规工艺处理西江微污染原水,对主要污染物的去除效果工艺进行了比较。结果表明,生物预处理+常规工艺对氨氮、CODMn的平均去除率达57.6%、47.1%,比常规工艺提高了34.7、17.1个百分点。生物预处理强化了混凝效果,能节省约20%的絮凝剂。高速给水曝气生物滤池的工程投资约100～130元·m-3,运行费用0.03～0.05元·m-3。
Biological pretreatment + conventional and conventional treatment of slightly contaminated raw water in Xijiang River, the removal of major pollutants were compared. The results showed that the average removal rate of ammonia nitrogen and CODMn by biological pretreatment + conventional process was 57.6% and 47.1%, respectively, which was 34.7 and 17.1 percentage points higher than that of the conventional process. Biological pretreatment enhances the coagulation effect, saving about 20% of the flocculant. High-speed water supply biological aerated filter project investment of about 100 to 130 yuan m-3, running costs 0.03 to 0.05 yuan m-3.