黄家湖水质评价及水质模拟分析研究

发布时间：2018-04-25 08:05

本文选题：湖泊 + 水质评价　；参考：《华中科技大学》2015年硕士论文

【摘要】：城市湖泊作为城市水资源的重要组成部分,对城市的水环境产生重要的影响。黄家湖作为武汉市洪山区城中湖之一,属于景观公园型湖泊。由于黄家湖大学城的建成,黄家湖水质污染状况日益恶化,对其进行科学评价并采用数值模拟的方法对水质进行研究,可以为黄家湖科学管理和可持续利用提供科学依据。本文以黄家湖为研究对象,开展如下研究内容:(1)监测黄家湖2013年8月-2014年5月水质,水质参数包括DO、BOD5、CODMn、TP、TN、COD等。(2)应用单因子指数评价模型、水质综合污染指数模型、湖泊富营养化评价模型评价黄家湖水质状况,表明黄家湖水质已达到劣五类水质状态,并且水质富营养化严重。(3)基于狄龙模型研究黄家湖TP、TN、COD的水环境容量,黄家湖TP水环境容量为1.709t/a,TN水环境容量为88.866t/a,COD水环境容量为534.696t/a。(4)基于卡拉乌舍夫扩散模型建立黄家湖CODMn、TN、TP扩散方程,估算CODMn、TN、TP扩散模型的参数,结果分别为1.13×10-4、8.56×10-4、1.08×10-4。(5)通过将黄家湖分为10个模块,输入黄家湖相关参数,如环境参数、转化参数、传输参数、边界参数,采用WASP水质模拟软件,模拟了湖泊中TN、NO3--N、NH3-N的变化情况,分析了TN实测值与模拟值的误差。结果表明模拟结果与实测值的趋势相吻合,模型软件对湖泊水质的模拟有很好的适用性。
[Abstract]:As an important part of urban water resources, urban lakes have an important impact on urban water environment. Huangjia Lake, as one of the lakes in Hongshan District of Wuhan City, belongs to the landscape park type lake. Due to the completion of Huangjia Lake University City, the water pollution situation of Huangjia Lake is worsening day by day. The scientific evaluation and numerical simulation of the water quality can provide scientific basis for the scientific management and sustainable utilization of Huangjiahu Lake. Taking Huangjia Lake as the research object, the following research contents are carried out: 1) Monitoring the water quality of Huangjia Lake from August 2013 to May 2014. The water quality parameters include DOB BOD5, CODMnU, TPDN, TNCOD, etc.) the single factor index evaluation model and the water quality comprehensive pollution index model are used. The evaluation model of lake eutrophication indicates that the water quality of Huangjia Lake has reached five kinds of poor water quality, and the eutrophication of water quality is serious. (3) based on Dillon model, the water environmental capacity of TP TNN COD in Huangjia Lake is studied. Huangjia Lake TP water environment capacity is 1.709 t / a ~ (-1) TN water environment capacity is 88.866 t / a ~ (COD) water environmental capacity is 534.696 t / r ~ (4). Based on Karaushev's diffusion model, the parameters of the diffusion model of COD _ (DMnn) _ (TNTP) in Huangjia Lake are estimated. The results are 1.13 脳 10 ~ (-4) -48.56 脳 10 ~ (-4) 脳 10 ~ (-4) ~ (5)) the Huangjia Lake is divided into 10 modules. The related parameters, such as environment parameter, transformation parameter, transmission parameter and boundary parameter, were input into the lake. The variation of TNNO3- Nu NH3-N in the lake was simulated by using WASP water quality simulation software, and the errors between the measured TN values and the simulated values were analyzed. The results show that the simulation results are consistent with the measured values and the model software is applicable to the simulation of lake water quality.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X824

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