本文關(guān)鍵詞：黃岡市白潭湖水質(zhì)變化特征及水環(huán)境容量研究　出處：《武漢理工大學》2015年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 白潭湖 水質(zhì)評價 污染負荷 環(huán)境容量

【摘要】：白潭湖位于黃岡市黃州區(qū)內(nèi),作為黃岡城東新區(qū)規(guī)劃的中心,是集生態(tài)環(huán)保中心、旅游觀光基地以及工農(nóng)業(yè)發(fā)展基礎(chǔ)等多項功能于一體的城市重要自然資源。但是隨著白潭湖流域社會經(jīng)濟的快速發(fā)展,流域范圍內(nèi)人口不斷膨脹,加之白潭湖水產(chǎn)投肥圍網(wǎng)養(yǎng)殖,流域污廢水排放量逐年增大,使水體環(huán)境容量和稀釋自凈能力降低,污染負荷加大,白潭湖流域水質(zhì)污染日益嚴重。本文對白潭湖流域的水污染負荷時空變化進行了研究。(1)利用單因子指數(shù)評價法對白潭湖2012及2013年水質(zhì)監(jiān)測數(shù)據(jù)的分析表明:白潭湖流域污染現(xiàn)狀較嚴重;(2)對白潭湖流域點源、面源污染源進行系統(tǒng)的調(diào)查分析顯示,白潭湖主要污染因素是水產(chǎn)養(yǎng)殖產(chǎn)生的污染和農(nóng)村生活污染;(3)根據(jù)2011年的城鎮(zhèn)人口、農(nóng)村人口和畜禽養(yǎng)殖量,用人口自然增長率法進行變化趨勢分析,得到2012~2014年間相應的污染負荷情況,利用結(jié)果計算出城鎮(zhèn)生活污水、農(nóng)村生活污水和畜禽養(yǎng)殖廢水及污染物的排放量,隨著人口的增加,污染物的排放量以一定的增長率增加,其中TN和COD是最重要的控制指標;(4)分別采用輸入輸出模型、盒式零維模型及“淺水湖和水庫”規(guī)劃組模型來計算COD、氨氮及TN和TP的環(huán)境容量,計算結(jié)果表明白潭湖各入湖污染物己無剩余容量,該流域中的COD、氨氮、TP和TN濃度超標現(xiàn)象嚴重,TN和TP超標尤為嚴重。白潭湖流域有機污染較重,過量氮、磷等營養(yǎng)物質(zhì)進入湖內(nèi),水體富營養(yǎng)化問題嚴重。最后,根據(jù)白潭湖的污染情況,結(jié)合污染源和水環(huán)境容量的分析結(jié)果,提出有針對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.
【學位授予單位】：武漢理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：X524;X26

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