摘要
介绍了采用一体式膜-生物反应器(IMBR)工艺处理生活污水的试验研究方法,研究了NH3 N的去除效果及其影响因素.试验结果表明:在冬季低温启动阶段及冲击负荷条件下,系统对NH3 N去除效果较差,平均去除率为32 43%.在稳定运行阶段,系统出水的NH3 N的质量浓度很低,去除率在95%以上.大多数情况下,系统出水NH3 N的质量浓度略低于上清液NH3 N的质量浓度,而当活性污泥的质量浓度较低,水力停留时间较短时,则会出现NH3 N值的质量浓度略高于上清液NH3 N的质量浓度的现象.生物对NH3 N的去除起主要作用,膜本身对NH3 N的去除作用不大.温度是影响膜-生物反应器对NH3 N去除效果的重要影响因素,经过足够长的时间进行驯化,低温下仍然能够获得理想的NH3 N去除效果.
The study on domestic wastewater treatment with integrated membrane-bioreactor (MBR) is introduced and the effect of NH_3-N removal and its influential factors are discussed.The results show that in the start-up period under low temperature and fluctuating load,the effect of NH_3-N removal was not satisfied.The average removal ratio was only 32.43%.In the stabilized period,the value of NH_3-N in the effluent was very low.The average removal ratio was over 95%.The biological removal played the main role in the removal of NH_3-N,and the membrane had little effect on it.Temperature was the major influential factor in this system.The fluctuating load should be avoided to guarantee the steady run of the system.
出处
《沈阳建筑工程学院学报（自然科学版）》
2004年第3期215-219,共5页
Journal of Shenyang Architectural and Civil Engineering University(Nature Science)
基金
辽宁省自然科学基金资助项目(20022007)
沈阳市"十五"科技项目(1022051-3-01)
