The Basic Environmental Investigate And Evaluation For Typical Village Drinking Headwaters Ground In Hebei Provice

In this paper, selected typical township in Hebei Province, drinking headwaters ground for the object, in the investigation to assess their water quality, environmental monitoring, and factors based on in-depth analysis of problems and reasons, environmental measures are put forward, provide the basis for the environmental management of reference.The effect of the advanced treatment of domestic wastewater by using membrane bioreactor was investigated. Long-term operation had showed that the membrane bioreactor(MBR) had a good effect on the removal of chemical oxygen demand(CODcr), ammonia nitrogen(NH3-N).The quality of the effluent had very stable.The CODcr of the effluent was 30～50mg/L,the removal rate can reach 84%;and the NH3-N of the effluent was 0.3～2.0 mg/L,the removal rate can reach 98%;the TP of the effluent was 0.3～2mg/L ,the removal rate was only 33%. The comparation of the removal effect in different HRT showed that the best HRT for the MBR to treat micro-polluted water was 8h.