作　　者： ; ; ; ; ;

机构地区： 辽宁石油化工大学环境与生物工程学院

出　　处： 《辽宁石油化工大学学报》 2006年第3期8-11,共4页

摘　　要： 利用一体式膜生物反应器对生活污水的处理进行了研究。结果表明，出水COD稳定，平均COD去除率达96％以上；NH4^＋-N的去除率受pH影响较大，当硝化好氧段pH为6．5～7．0时，NH4^-N的平均去除率高达99％以上．当硝化好氧段pH为4．7～5．8时，NH4^＋-N的平均去除率降为85％左右；系统运行期间污泥的质量浓度先由启动时的6g／L降低到5g／L，而后随着系统的运行呈增长趋势，试验结束时增长到8．14g／L；粘度不随系统运行而增大．而是呈下降趋势，最终稳定在2．1mPa·s左右， The treatment of domestic wastewater using submerged membrane bJoreactor was studied. The result shows that the average removal rate of COD is more than 96% and the removal rate is stable. The removal rate of NH4^＋ -N is influenced pH value greatly. The average removal rate of NH4^＋ -N is over 99 % when pH value is 6.5-7.0 in the nitration part. However, the average removal rate of NH4^＋ -N decreases to 85% when the pH value is 4. 7- 5. 8 in the nitration part. At the beginning of the experiment, the sludge mess concentration decreases from 6 g/L to 5 g/L, then increases with the running of the system and at last reaches 8.14 g/L. The viscosity of sludge is not increascd with the sludge concentration; it is decreased gradually and then stabilized at 2.1 mPa·s.

关 键 词： 膜生物反应器 生活污水 硝化

领　　域： [环境科学与工程]