提高生活污水中氮磷去除效果的工艺研究

Technological Researches on Removabilities of Nitrogen and Phosphor in Sewage Disposal

通过在上海市松江污水处理厂进行实验室及生产性试验研究,考察了按三种工艺途径改建的氮磷处理效果,即:①提高曝气池活性污泥浓度;②高浓度活性污泥——A/O法;③间歇曝气工艺。并对三个方法进行了比较,推荐了适合松江污水厂提高氮磷去除率的最佳方案。

Through laboratory and productive experimental studies on removabilities of nitrogen and phosphor in Songjiang Sewage Disposal Plant, three kinds of treatment devices,i. e. (1)raise the concentration of activated sludge;(2)high concentration activated sludge-A/O method;and (3)periodic aeration, have been investigated and compared. An optimum plan of raising removabilities of N and P,suitable to Song-Jiang Sewage Disposal Plant, has been suggested.