黄冈市白潭湖水质变化特征及水环境容量研究

发布时间：2018-01-05 01:21

本文关键词：黄冈市白潭湖水质变化特征及水环境容量研究　出处：《武汉理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：白潭湖位于黄冈市黄州区内,作为黄冈城东新区规划的中心,是集生态环保中心、旅游观光基地以及工农业发展基础等多项功能于一体的城市重要自然资源。但是随着白潭湖流域社会经济的快速发展,流域范围内人口不断膨胀,加之白潭湖水产投肥围网养殖,流域污废水排放量逐年增大,使水体环境容量和稀释自净能力降低,污染负荷加大,白潭湖流域水质污染日益严重。本文对白潭湖流域的水污染负荷时空变化进行了研究。(1)利用单因子指数评价法对白潭湖2012及2013年水质监测数据的分析表明:白潭湖流域污染现状较严重;(2)对白潭湖流域点源、面源污染源进行系统的调查分析显示,白潭湖主要污染因素是水产养殖产生的污染和农村生活污染;(3)根据2011年的城镇人口、农村人口和畜禽养殖量,用人口自然增长率法进行变化趋势分析,得到2012~2014年间相应的污染负荷情况,利用结果计算出城镇生活污水、农村生活污水和畜禽养殖废水及污染物的排放量,随着人口的增加,污染物的排放量以一定的增长率增加,其中TN和COD是最重要的控制指标;(4)分别采用输入输出模型、盒式零维模型及“浅水湖和水库”规划组模型来计算COD、氨氮及TN和TP的环境容量,计算结果表明白潭湖各入湖污染物己无剩余容量,该流域中的COD、氨氮、TP和TN浓度超标现象严重,TN和TP超标尤为严重。白潭湖流域有机污染较重,过量氮、磷等营养物质进入湖内,水体富营养化问题严重。最后,根据白潭湖的污染情况,结合污染源和水环境容量的分析结果,提出有针对性的白潭湖污染防治措施。
[Abstract]:Baitan Lake is located in Huangzhou District, Huanggang City, as the planning center of Huanggang East New area, is a collection of ecological and environmental protection center. Tourism base and industrial and agricultural development basis and other important natural resources in a city. But with the rapid development of social economy in the Baitan Lake basin, the population in the basin is expanding. In addition, the drainage volume of wastewater increases year by year, which reduces the capacity of water environment and the ability of dilution self-purification, and increases the pollution load. The water quality pollution in the Baitan Lake basin is becoming more and more serious. The spatiotemporal variation of water pollution load in the Baitan Lake basin is studied in this paper. The water quality monitoring data of Baitan Lake in 2012 and 2013 were analyzed by single factor index evaluation method. The results showed that the pollution status of Baitan Lake basin was serious. 2) A systematic investigation and analysis of point and non-point source pollution sources in the Baitan Lake basin shows that the main pollution factors of Baitan Lake are the pollution caused by aquaculture and the pollution of rural life. (3) according to the urban population, the rural population and the livestock and poultry breeding quantity in 2011, the change trend analysis was carried out by the method of natural population growth rate, and the corresponding pollution load was obtained during the period of 2012 ~ 2014. According to the results, the discharge of municipal sewage, rural domestic sewage and livestock and poultry wastewater and pollutants were calculated. With the increase of population, the discharge of pollutants increased with a certain rate of growth. TN and COD are the most important control indexes. The input-output model, the boxed zero dimensional model and the "shallow water lake and reservoir" planning group model are used to calculate the environmental capacity of COD, NH3-N, TN and TP, respectively. The results show that there is no residual capacity of pollutants in each lake, and the concentration of COD, ammonia nitrogen, TP and TN in the basin is serious. TN and TP exceed the standard is especially serious. Baitan Lake basin organic pollution, excessive nitrogen, phosphorus and other nutrients into the lake, eutrophication problem is serious. Finally, according to the pollution situation of Baitan Lake. Combined with the analysis of pollution sources and water environmental capacity, the paper puts forward some measures to prevent and control the pollution of Baitan Lake.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X524;X26

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