三级SBR除磷脱氮工艺处理生活污水

根据生物除磷和反硝化脱氮的机理,污水的脱氮除磷存在基质竞争和泥龄方面的矛盾.为解决该矛盾开发了一种新的污水生物处理反应工艺--三级序批式活性污泥法(三级SBR法),并运用该方法处理了生活污水.该工艺将具有硝化、聚磷和去碳功能的细菌种群分别控制在三级反应器中优势生长并结合反硝化除磷技术.实验表明,处理效果稳定,COD 、TN 、TP去除率平均为87%、80%、86%,并可以减少能耗,节约碳源.该工艺能取得较好的同时脱氮除磷效果,且操作简便,运行费用低,有较好的应用前景.

Domestic Sewage Treatment Using Three-stage SBR Denitrification and Phosphorus Removal Process

Based on the mechanism of biological phosphorus and nitrogen removal, the collision between on nutrient and resident time is given. In order to solve this problem, a new process for wastewater biological treatment- three-stage SBR process has been developed. Three- stage SBR process treat domestic sewage is applied, which controls various kinds of bacteria optimum growth with the different function that responsibility for removal organics, nitrogen and phosphorus existed in the different reactors and combine with the denitr/fying phosphorus removing process . The experiment results show that ,the three-stage SBR process not only improved the treatment efficiency that COD ,TN,and TPaverage removal efficiency is 87% ,80% and 86% , but also saved the energy cost. removal. The process can make better effect on simultaneous nutrients removal, simple operation and low cost will make a good application prospect for it.