深圳西丽水库水源地污染源调查与分析

Investigate and Analysis pollution Source of Shenzhen Xili Reservoir

对深圳市重要水源地西丽水库周边的城镇生活、工业、面源污染源进行了详细调查。结果显示,西丽水库周边每年约产生COD为2464.50t、氨氮约为295.54t、总磷约为35.04t。按照污染源类型划分,COD、氨氮、总磷最大来源是城镇生活源,分别为89.03%、91.16%和91.95%;按照控制单元划分COD、氨氮、总磷最大分担率是大磡子流域,分别为49.57%、50.94%和50.54%。

Abstract:The integrated investigation is progressed on industrial,living and farming surface runoff of Xili reservoir which as an important water resource in Shenzhen.The results are as follows:The COD is about 2464.50 t,while NH3 is about 295.54 t and tTP is about 35.04 t was generated every year around the Xili reservoir.According to the types of pollution sources, the largest sources of COD,NH3 and TP are urban living sources,which are 89.03 %,91.16 % and 91.95 % respectively;According to the control unit,the maximum share of COD,NH3 and TP is Dakan river basin, which is 49.57 %,50.94 % and 50.54 % respectively.