本文選題：水質(zhì)改善 + 聯(lián)合調(diào)度��； 參考：《揚州大學》2017年碩士論文

【摘要】：揚州是一座緣水而建、因水而興的歷史文化名城,然而由于近年來城市的擴張式發(fā)展導致局部水系遭到破壞,內(nèi)城河上游因城區(qū)北部蜀崗分水嶺的阻隔無補給水源,沿途承受漏排污水、雨水面源污染和底泥污染,水質(zhì)不能自凈,易產(chǎn)生水體黑臭和藻類繁殖現(xiàn)象。為消除水體黑臭,改善景觀水體質(zhì)量,揚州市定期引入邵伯湖水,實施引水沖污工程。雖一定程度上改善了內(nèi)河水質(zhì),但仍存在調(diào)度方案憑經(jīng)驗、科學性不高、沖污效果不好等問題。本文先闡述了閘泵調(diào)度機理、國內(nèi)外工程實例及河網(wǎng)水動力、水質(zhì)數(shù)學模型的國內(nèi)外研究進展,根據(jù)基本方程和求解方法建立揚州中心城區(qū)河網(wǎng)一維水動力水質(zhì)耦合模型,研究水量水質(zhì)聯(lián)合調(diào)度。通過搜集揚州市水環(huán)境狀況等有關(guān)資料,對建立的一維水動力水質(zhì)模型進行驗證。計算揚州閘閘門不同開度下,水體的TN、TP、氨氮和高錳酸鹽指數(shù)的平面分布及變化過程;揚州閘同一開度,不同月份污染物濃度的降解情況。分析引用邵伯湖水對于增加研究區(qū)域水資源量、增強水體自凈能力、改善中心城區(qū)水體水質(zhì)效果。針對現(xiàn)狀引清調(diào)度方案的缺陷,提出閘泵聯(lián)合調(diào)控措施,通過一維水動力水質(zhì)耦合模型對擬定方案進行模擬演算,綜合分析各工況的水質(zhì)改善效果,優(yōu)選出科學實用的閘泵調(diào)控方案。與此同時,為更好發(fā)揮水利工程對區(qū)域水環(huán)境改善、環(huán)境,生態(tài)等作用,結(jié)合我國目前水利工程生態(tài)與環(huán)境調(diào)度發(fā)展的現(xiàn)狀和實際工作中存在的阻礙,提出切實可行的建議,為在水質(zhì)型缺水地區(qū)解決水資源配置和跨區(qū)域生態(tài)調(diào)水難題提供了借鑒。
[Abstract]:Yangzhou is a famous historical and cultural city built by water. However, due to the expansion of the city in recent years, the local water system has been destroyed, and the upper reaches of the inner city have no water supply due to the barrier of the Shugang watershed in the northern part of the city. Along the way, the sewage was drained, the Rain Water pollution and the sediment pollution, the water quality could not be self-clean, and it was easy to produce water black-smelling and algae breeding phenomenon. In order to eliminate the blackness of water and improve the quality of landscape water, Shaobo Lake water was introduced into Yangzhou City regularly and the project of water diversion and scouring was carried out. Although the water quality of inland rivers has been improved to a certain extent, there are still some problems such as the experience of dispatching scheme, the lack of scientific nature and the poor effect of washing pollution. In this paper, the mechanism of sluice pump dispatching, engineering examples at home and abroad and the research progress of water power and water quality mathematical model of river network at home and abroad are described. According to the basic equation and solution method, the one-dimensional hydrodynamic water quality coupling model of Yangzhou central urban river network is established. To study the combined regulation of water quantity and water quality. The one-dimensional hydrodynamic water quality model is verified by collecting relevant data of Yangzhou water environment. The plane distribution and variation process of TNP, NH3-N and permanganate index were calculated under different opening of Yangzhou sluice gate, and the degradation of pollutant concentration in the same opening degree of Yangzhou sluice in different months was also calculated. This paper analyzes the effect of using Shaobo Lake water to increase the amount of water resources, strengthen the self-purification ability of water body and improve the water quality in central urban area. In view of the defects of the current situation, the combined control measures of sluice and pump are put forward. The one-dimensional hydrodynamic water quality coupling model is used to simulate and calculate the proposed scheme, and the effect of water quality improvement under various working conditions is analyzed synthetically. Select the scientific and practical control scheme of the sluice pump. At the same time, in order to give full play to the role of water conservancy projects in the improvement of regional water environment, ecology and so on, combined with the current situation of water conservancy engineering ecological and environmental regulation development and the existing obstacles in practical work, some practical suggestions are put forward. It can be used for reference to solve the problem of water resources allocation and cross-regional ecological water transfer in water-quality water-deficient areas.
【學位授予單位】：揚州大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：X52

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本文編號：2111050