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1 前言根据2000年全市水环境污染普查结果,全市有各类污染源55979个,日排放污水504.13万m~3(不包括自备水源中用于冷却水的部分),排放的COD-Cr1704.11t/d、NH_3-N123.38t/d。其中33779个污染源排放河道,污水量为282.04万m~3/d,占全市污水总量的55.95％。地表水污染为综合型有机污染,主要污染物是氨氮、总磷、化学需氧量、石油类等,除苏州河干流水质逐年好转外,全市河道水质污染趋势还没有得到有效控制,黄浦江上游来水有进一步恶
1 Preface According to the results of the census of water pollution in the city in 2000, there are 55,979 various types of pollution sources in the city and the daily discharge of sewage is 5,041,300 m 3 (excluding the part for self-contained water used for cooling water), COD-Cr1704.11t /d,NH_3-N123.38t/d. Among them, 33,779 pollutants were discharged into the river with the sewage volume of 2,820,400 m 3 / d, accounting for 55.95% of the total sewage in the city. Surface water pollution is a comprehensive organic pollution. The main pollutants are ammonia nitrogen, total phosphorus, chemical oxygen demand, petroleum, etc. In addition to the water quality of the main stream of Suzhou Creek getting better year by year, the trend of river water pollution in the city has not been effectively controlled. The upper reaches of the Huangpu River There is further evil in the water