本文選題：預(yù)警 + 水源水質(zhì)��； 參考：《湖南大學(xué)》2015年碩士論文

【摘要】：隨著地表水源水質(zhì)的日益惡化及突發(fā)性水污染事件的不斷發(fā)生,原水水質(zhì)預(yù)警監(jiān)測(cè)系統(tǒng)作為保障供水水質(zhì)安全的有效性措施,目前已在國內(nèi)外得到成功的應(yīng)用和推廣,而處于西江下游流域的某市關(guān)于水源水質(zhì)安全預(yù)警研究還處于起步階段。本論文以2014.02~2015.01為研究周期,對(duì)西江下游水源水質(zhì)及某水廠常規(guī)處理工藝單元出水水質(zhì)進(jìn)行監(jiān)測(cè)與分析,研究西江水源水質(zhì)的變化規(guī)律及常規(guī)處理工藝對(duì)污染物的去除變化,在此基礎(chǔ)上針對(duì)該水源水質(zhì)提出污染物指標(biāo)的預(yù)警水平,初步確定水質(zhì)預(yù)警指標(biāo)及預(yù)警監(jiān)測(cè)點(diǎn),為在西江下游流域建立大范圍水質(zhì)預(yù)警監(jiān)測(cè)系統(tǒng)提供基礎(chǔ)性研究,并對(duì)濁度、氨氮、COD_(Mn)等關(guān)鍵預(yù)警指標(biāo)進(jìn)行相應(yīng)的應(yīng)急措施試驗(yàn)研究,為水廠應(yīng)對(duì)水源水質(zhì)變化提供有效指導(dǎo)和科學(xué)調(diào)控。研究結(jié)果表明:(1)西江下游水源水質(zhì)整體良好,基本上達(dá)到國家地表水環(huán)境質(zhì)量標(biāo)準(zhǔn)(GB3838-2002)規(guī)定的Ⅱ類水質(zhì)標(biāo)準(zhǔn),超標(biāo)指標(biāo)主要是DO、COD_(Mn)、TN、氨氮等,藻類含量較高,土嗅素、2-MIB、二甲硫醚、二甲基三硫醚等嗅味物質(zhì)偶有檢出。水庫水源水質(zhì)整體優(yōu)于西江水,TN、藻類個(gè)數(shù)、葉綠素a等指標(biāo)含量較高;(2)從水質(zhì)指標(biāo)的季節(jié)性及垂直分層變化分析得知,水溫、pH、電導(dǎo)率、藻類等指標(biāo)季節(jié)性變化規(guī)律較明顯,濁度、COD_(Mn)、TP、葉綠素a、藻類個(gè)數(shù)等指標(biāo)分層現(xiàn)象較明顯,均表現(xiàn)為下層水樣較高特點(diǎn);(3)從水質(zhì)指標(biāo)間相關(guān)性分析可知,有機(jī)物類、氮類、藻類、臭味物質(zhì)等指標(biāo)與常規(guī)指標(biāo)(濁度、DO、水溫、pH、電導(dǎo)率)存在一定的顯著相關(guān)性,氮類形態(tài)間(氨氮、亞硝態(tài)氮、硝態(tài)氮)轉(zhuǎn)化關(guān)系較明顯,分別得出了西江水源COD_(Mn)、TN、氨氮、葉綠素a、2-MIB等指標(biāo)的回歸方程;(4)水廠常規(guī)處理工藝對(duì)濁度、TOC、UV254、COD_(Mn)、氨氮、亞硝態(tài)氮、葉綠素a等污染物的平均去除率分別在94.04%、21.34%、31.25%、33.9%、76.18%、88.21%、91.29%左右,而對(duì)氯化物、TN、DOC、臭味物質(zhì)等污染物基本無去除效果;(5)初步確定西江下游源水預(yù)警指標(biāo)為濁度、pH、DO、電導(dǎo)率、水溫、總氮、COD_(Mn)、氨氮、葉綠素a,確定預(yù)警監(jiān)測(cè)點(diǎn)為麻子沖水閘出水口、西江取水口、水廠進(jìn)水口。
[Abstract]:With the deterioration of surface water quality and the occurrence of sudden water pollution events, the early warning and monitoring system of raw water quality, as an effective measure to ensure the safety of water quality, has been successfully applied and popularized at home and abroad. However, the early warning research on water quality safety in a city located in the lower reaches of Xijiang River is still in its infancy. In this paper, the water quality of water source in the lower reaches of Xijiang River and the effluent quality of a conventional treatment process unit in a water plant are monitored and analyzed with the period of January 1, 2014.02, and the change law of water quality of Xijiang River and the removal of pollutants by conventional treatment process are studied. On this basis, the early warning level of pollutant quality index is put forward, and the water quality early warning index and early warning monitoring point are preliminarily determined, which provides a basic research for the establishment of a large-scale water quality early warning monitoring system in the lower reaches of the Xijiang River, and the turbidity. In order to provide effective guidance and scientific control for water plant to deal with the change of source water quality, the corresponding emergency measures are tested and studied on the key early warning indexes, such as ammonia nitrogen, CODX, Mnn and so on. The results show that the water quality of the lower reaches of the Xijiang River is good as a whole, which basically meets the water quality standard of class 鈪，

本文編號(hào)：2004306