为确保阳澄湖饮用水源地锑浓度稳定达标,基于阳澄湖地区的水环境现状监测数据及污染源调查结果,计算了阳澄湖中锑的水环境容量,并提出了研究区域内锑的总量控制方案.结果表明:研究区域现状锑排放量约12.38 kg/d,为达到集中式生活饮用水源地特定项目标准中锑的标准限值0.005 mg/L,需削减9.38 kg/d,削减率为75.8%;纺织印染直排企业及接纳含锑废水的集中式污水处理厂尾水中锑的排放质量浓度限值为20 μg/L.%To ensure a stable standard of antimony concentration in the drinking water source in Yangcheng Lake area,the water environmental capacity of antimony was calculated on the basis of the monitoring data of water environment status and the survey of pollution sources.The total quantity control scheme of antimony is also proposed.The results show that the emission rate of antimony in the study area is 12.38 kg/d,of which 9.38 kg/d should be reduced with a reduction rate of 75.8%to achieve the standard limit of 0.005 mg/L in the specific project standards for centralized drinking water sources.The limiting value of the emission concentration of antimony is 20 μg/L in the waste water of textile,printing and dyeing enterprises and in the tail water of centralized sewage treatment plants.
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