【摘要】 对杭嘉湖地区各种养殖模式选择有代表性的养殖品种,在养殖周期内分不同养殖阶段对其养殖水域进行CODCr、氨氮、总磷等有机污染物浓度测试,结合养殖池塘的产量、排水量等基本情况确定杭嘉湖地区水产养殖污染物排放系数。根据排放系数和区域水产养殖产量,计算得出杭嘉湖地区淡水水产养殖CODCr、氨氮、总磷等污染物的排放量。更多还原

【Abstract】 According to the representative breed aquatics of various cultivated modes in Hangjiahu area,the coefficient of discharged pollutant of breed aquatics is decided,combined with the output and drainage of breed ponds,and the periodical analysis of COD_Cr,ammoniac nitrogen and sum phosphor of cultivated water area.In terms of the coefficient,the quantity of discharged COD_Cr,ammoniac nitrogen and sum phosphor of freshwater breed aquatics is concerned in Hangjiahu area.更多还原