摘要
采用固定化微生物-曝气生物滤池(IBAF)系统对北京市马草河微污染水体进行了现场连续运转中试研究。通过对进水与出水COD、氨氮和总磷的监测,研究了IBAF系统对河湖微污染水体的处理性能。结果显示:采用IBAF系统处理河流微污染水体,处理后主要水质指标可达到地表水IV 类水体标准;各污染物的去除率分别达到:CODcr60％以上、CODMn30％以上、氨氮90％以上和总磷在50％以上;克氏定氮法测定表明IBAF系统中的生物量为35 g／L,可极大地提高处理效率;IBAF 系统在驯化完成后,能够满足重复使用的要求;试验还表明在温度5-15℃的条件下,IBAF系统脱除氨氮性能未受影响,这对低温脱氮的研究具有重要的意义。
In this paper, a pilot-scale experiment has been conducted on a new method for treating light-polluted water in Beijing Macao river based on immobilized microorganisms- biological aerated filter （IBAF） . The performance about light-polluted water treatment in the river of IBAF reactor is examined through the analysis of inflow and outflow of COD, ammonia- nitrogen and TP. The results show that the effluent water can satisfy the IV grade of environmental quality standards for surface water in China, and the removal efficiency of CODer, CODM,, NH3-N, and TP is respectively above 60%, 30%, 90%, and 50%. Meanwhile, the Kjeldahl-Gunning method for nitrogen determination indicates that the mean immobilized biomass on the carrier is 35 g/L （H20） in the system which can improve the treatment efficiency. The IBAF system can be reused as domestication has been completed. In addition, the low temperature condition of 5- 15℃ can＇t affect the NH3-N removal efficiency, which indicates the importance for the study of nitrogen removal in low temperature.
出处
《北京水务》
2006年第2期11-14,共4页
Beijing Water
基金
国家863计划重大专项课题(2003AA601010)资助
关键词
固定化微生物
处理
微污染水体
低温脱氮
Immobilized microorganisms
Treatment
Light-polluted water
Nitrogen removal in low temperature
