机构地区: 辽宁石油化工大学
出 处: 《长春理工大学学报(自然科学版)》 2006年第2期104-106,共3页
摘 要: 通过研究连续和间歇式活性污泥法(DAT-IAT)处理生活污水的最佳工艺条件和除氮效果,确定了DAT-IAT法处理生活污水最佳反应温度为25℃,反应时间为3h,活性污泥浓度为2500mg/L。当反应期内好氧曝气和缺氧搅拌交替进行2次,脱氮率可以达到90%以上,COD去除率在94.5%以上。 The optimum processing conditions and the treatment effect of nitrogen removal by using DAT - IAT method were studied. It was determined that the most suitable reaction conditions to treat municipal sewage are: the reaction temperature 259C -40℃ , the reaction time 2.5 -4 hours and the density of activated sludge 2000 -4000rag/L, with the aerobic aeration and an aerobic stir carried on alternately 2 times. The rate of nitrogen removal is above 90%. and the results indicated 94. 5% removal for COD.
领 域: [环境科学与工程]