以太涌运河为研究对象,根据总氮污染物入河特点,对入河支浜进行概化,采用一维河流水质模型,将运河分为5段计算总氮污染物的排放限值.结果表明:太滆运河计算段的总氮污染物排放限值为10.4 t/a,而目前排入太涌运河计算段的总氮约为40 t/a.建议对太滆运河两岸总氮污染物实行严格的减排措施以提高入湖河流的水质,确保太湖水环境质量.%Taking Taige Canal as research subjects,this paper divided the canal into five sections and calculated the total nitrogen emission limits by 1-D water quality model,according to the characteristics of total nitrogen pollutants in branches.The results demonstrated that the total nitrogen emission limit of calculated Taige Canal was 10.4 t/a.However,the amount of total nitrogen emission in Taige Canal was 40t/a.Therefore,it is necessary to remove total nitrogen pollutants from branches by strict emission reduction methods in order to improve Taihu lake water quality.
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