本文選題：高鹽水 + 污水處理��； 參考：《長安大學(xué)》2015年碩士論文

【摘要】：高鹽水淡化處理技術(shù)已成為制約煤化工企業(yè)發(fā)展的重大問題之一,在多旱少雨寧夏地區(qū),對高鹽水進行處理回用,能夠提高寧東地區(qū)污水排放達標(biāo)率和水資源綜合利用效率,進而調(diào)整寧東地區(qū)水資源利用結(jié)構(gòu),緩解用水壓力,節(jié)約淡水資源、減少環(huán)境污染,提升寧東能源化工基地整體形象。本論文通過對寧東園區(qū)三處調(diào)節(jié)池、礦井水采樣化驗,采樣混合型Pi.Sigma神經(jīng)網(wǎng)絡(luò)對污水進行評價,給出定量分析,以此在園區(qū)建設(shè)污水處理廠及污水處理后的回收利用規(guī)劃,我們主要完成的工作是:(1)建立混合型Pi.Sigma神經(jīng)網(wǎng)絡(luò)水質(zhì)評價模型,對園區(qū)污水水質(zhì)進行定量分析,結(jié)果表明調(diào)節(jié)池、礦井水等四處采樣點水質(zhì)為Ⅴ類,根據(jù)計算出的污染指數(shù)調(diào)節(jié)池的水質(zhì)污染更嚴(yán)重;有化驗數(shù)據(jù)可知,污水污染物含量比較高,但是由于該處污水的礦化度(含鹽量),與一般污水處理廠的技術(shù)不匹配,給污水達標(biāo)處理造成困難。因此必須針對高鹽度污水進行處理。(2)對要建設(shè)的污水處理廠選址,比較各個方案,選出最合適的廠址:煤化工園區(qū)中水廠選在3#集污調(diào)蓄轉(zhuǎn)換池北側(cè),化工新材料園區(qū)污水處理廠西側(cè)18#地塊新建中水廠,濃鹽水綜合利用區(qū)選在永利村南側(cè),3#渣場向南空地建設(shè)。(3)根據(jù)選定的廠址,綜合考慮各地區(qū)高程、泵站揚程、輸送距離、工程預(yù)算,最終確定的輸水方案為:沿高速公路和307國道之間向東南敷設(shè)至307國道~鴛馮路路口,穿越307國道至路口西南角,之后沿鴛馮路西向南敷設(shè),穿越鴛鴦湖電廠鐵路線后,沿鐵路南側(cè)向西轉(zhuǎn)向進入化工新材料園區(qū)中水廠。此方案管線長度約11km,管線最高點1370米。(4)就目前高鹽水處理存在的問題進行了分析,針對存在問題給出了高鹽水處理技術(shù)方案:“化學(xué)預(yù)處理+超濾系統(tǒng)+反滲透處理工藝”處理高鹽水,75%作為中水回用,25%濃鹽水送至濃鹽水綜合利用區(qū),通過自然晾曬、海藻養(yǎng)殖、冬季造冰方式進一步處理利用,最終鹽餅送3#渣場填埋處理。并對該方案進行具體設(shè)計分析。(5)對高鹽水具體的回收利用方案進行分析,結(jié)合園區(qū)實際情況,給出具體回收方案:濃鹽水給排水收集儲池、濃鹽水分質(zhì)分級系統(tǒng)淡化與再利用、高鹽水調(diào)制淡化水養(yǎng)殖鹽藻與螺旋藻、荒漠化土地整治與生態(tài)建設(shè)。
[Abstract]:The desalination treatment technology of high salt water has become one of the major problems restricting the development of coal chemical enterprises. In Ningxia region with more drought and less rain, the treatment and reuse of high salt water can improve the discharge rate of sewage and the comprehensive utilization efficiency of water resources in the east of Ningxia. And then adjust the structure of water resources utilization, relieve water pressure, save fresh water resources, reduce environmental pollution, and promote the overall image of Ningdong energy and chemical industry base. This paper evaluates sewage through three regulating ponds, mine water sampling test and sampling mixed Pi.Sigma neural network in Ningdong Park, and gives quantitative analysis, so as to construct sewage treatment plant in the park and plan the recovery and utilization after sewage treatment. Our main work is to establish a mixed Pi.Sigma neural network water quality evaluation model, and to quantitatively analyze the wastewater quality in the park. The results show that the water quality of the four sampling points, such as the regulating pool and the mine water, is Class V. According to the calculated pollution index, the water quality of the regulating pool is more serious. According to the test data, the sewage pollutant content is relatively high, but because of the salinity (salinity) of the sewage there, it does not match the technology of the general sewage treatment plant. It is difficult to treat the sewage up to standard. Therefore, it is necessary to treat the high-salinity sewage. 2) to select the site of the sewage treatment plant to be built, compare the various schemes, and select the most suitable site: the water plant in the coal chemical industry park is selected on the north side of the conversion pool for sewage collection and storage in the coal chemical industry park. The new chemical material park sewage treatment plant west side 18 # new construction middle water plant, the concentrated salt water comprehensive utilization area selects in Yongli village south side of the dregs yard to the south empty lot construction. (3) according to the selected factory site, synthetically considers each area elevation, the pumping station lift, the transportation distance, According to the project budget, the final water conveyance plan is to lay southeast between the expressway and the 307 National Road to the junction of National Highway 307 ~ Uyen Fung Road, to cross National Road 307 to the southwestern corner of the junction, and then to lay water along Uyen Fung Road west to the south. After crossing the railway line of Yuanyanhu Power Plant, it turns westward along the south side of the railway to enter the Central Water Plant of the New Chemical material Park. The pipeline length of this scheme is about 11km, and the highest point of the pipeline is 1370 meters. In view of the existing problems, the technical scheme of high brine treatment is given: "Chemical pretreatment ultrafiltration system reverse osmosis treatment process" to treat 75% of high brine as reclaimed water, 25% concentrated brine is sent to the comprehensive utilization area of concentrated brine, and then it is dried naturally. Seaweed culture, further processing and utilization of ice making in winter, and landfill treatment of salt cake sent to slag yard. And the concrete design and analysis of this scheme. (5) analyzing the concrete recovery and utilization scheme of high salt water, combining with the actual situation of the park, giving the concrete recovery scheme: concentrated salt water supply and drainage storage pool, desalination and reuse of concentrated brine grading system. Salt algae and Spirulina in desalination water, desertification land treatment and ecological construction.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X824;X703

【參考文獻】

相關(guān)期刊論文 前1條

1 張裕卿,丁健,�？∈�;聚砜—Al_2O_3復(fù)合膜處理油田含油污水[J];工業(yè)水處理;2000年02期

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本文編號：1954623