摘要
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2464.50 t、氨氮约为295.54 t、总磷约为35.04 t。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%。
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 NH_3 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, NH_3 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, NH_3 and TP is Dakan river basin, which is 49.57%, 50.94% and 50.54% respectively.
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