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机构地区:[1]西南交通大学环境科学与工程学院,四川成都610031
出 处:《广东农业科学》2010年第6期247-249,共3页Guangdong Agricultural Sciences
摘 要:QUAL2Kw是一维稳态水质模型,是由美国环保局开发并在QUAL2E模型的基础上发展而来的一个具有多种用途的河流综合水质模型,被广泛地应用于河流的水质规划和管理。岷江乐山市中区流域为岷江、大渡河及青衣江三江汇流地,采用QUAL2Kw模型对岷江流域乐山市中区段水质进行模拟和预测,得到汇流前后岷江的水质变化趋势以及主要污染物变化量。结果显示,汇流后岷江流域水质明显变好,主要污染物氨氮下降明显,有机氮污染减轻趋势不明显。QUAL2Kw model was a one dimensional steadywater qualitymodel,which was exploited by the United State Environmental Protection Bureau and developed on the base of QUAL2E model.It was a multi-purpose integrated river water quality model had been widely used in river water quality planning and management. Leshan City was the confluence of Minjiang, Dadu and Qingyi.Based on the flow characteristics and pollutant distribution of Minjiang,QUAL2Kw model was used to simulate and predict water quality in the Leshan section of the main stream and tributaries of Minjiang for obtaining water quality trends and major changes in the amount of pollutants.The simulation results were verified and showed that the the water quality of Minjiang River significantly changed for the better,and the main pollutants, ammonia nitrogen significantly decreased.But the reducing of organic nitrogen pollution was not obvious.
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