State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China,
Environ Sci Pollut Res Int. 2015 Aug;22(15):11493-503. doi: 10.1007/s11356-015-4311-3. Epub 2015 Mar 31.
The deterioration of water quality in Taihu Lake, China, has caused widespread concern in recent years. The primary pollution sources of Taihu Lake are its inflow rivers. Effective environmental water management strategies need to be implemented in these rivers to improve the water quality of Taihu Lake and to promote sustainable development in the region. In this study, the QUAL2K model is used in conjunction with the trial and error approach to assess permissible load capacities for the Wujin River (a major tributary of Taihu Lake) in terms of COD, NH3-N, TN, and TP. Results show that permissible annual loads for these pollutants are 5216.31, 491.71, 948.53, and 104.38 t, respectively. This suggests that COD, NH3-N, TN, and TP loads in the Wujin River catchment need to be reduced by 13.35, 27.26, 47.75, and 37.08 %, respectively, to satisfy national water quality objectives. Total amount control measures are proposed to control and reduce pollution loads of the Wujin River catchment. The method applied in this study should provide a sound basis for water environmental management decision-making.
近年来，中国太湖水质恶化引起了广泛关注。太湖的主要污染源是其入湖河流。需要在这些河流中实施有效的环境水资源管理策略，以改善太湖的水质，促进该地区的可持续发展。本研究采用 QUAL2K 模型并结合试错法，评估了武进水系（太湖的一条主要支流）对于 COD、NH3-N、TN 和 TP 的允许负荷量。结果表明，这些污染物的允许年负荷量分别为 5216.31、491.71、948.53 和 104.38 t，这表明武进水系流域的 COD、NH3-N、TN 和 TP 负荷需要分别减少 13.35%、27.26%、47.75%和 37.08%，才能满足国家水质目标。提出了总量控制措施来控制和减少武进水系流域的污染负荷。本研究应用的方法应为水环境保护管理决策提供可靠依据。
