第25卷第1期Vol 25 No. 12008年2月JOURNAL OF JILIN INSTTTUTE OF CHEMICAL TECHNOLOGYFeb.2008文章編號(hào):1007-2853(2008)01001102SBR工藝處理校園污水的研究鄧民,黃江麗(吉林化工學(xué)院環(huán)境與生物工程學(xué)院吉林吉林13202摘要:采用SBR工藝對(duì)校園污水進(jìn)行試驗(yàn)研究結(jié)果表明在運(yùn)行周期為10h容積負(fù)荷為1.2 kg BOD(m.d)、曝氣量1.3m/h、SVx28%條件下達(dá)到no%5.7%;nr9.8%;nm9.1%水質(zhì)符合《城市污水再生利用城市雜用水水質(zhì)標(biāo)準(zhǔn))(GB/T18920-200)關(guān)鍵詞:校園污水;SBR法;中水回用中圖分類號(hào):X703文獻(xiàn)標(biāo)識(shí)碼:A我國(guó)是淡水資源匱乏國(guó)調(diào)查表明缺水城市水的要求,需投資(60-70)萬,每年可節(jié)水十幾有183個(gè),全國(guó)總?cè)彼棵刻?×107萬m3,影響萬噸全國(guó)上千萬的在校生,每年可節(jié)約新鮮水以工業(yè)產(chǎn)值200億元水已經(jīng)成為制約國(guó)民經(jīng)濟(jì)發(fā)億噸計(jì),1噸水約可創(chuàng)工業(yè)凈產(chǎn)值5元,其經(jīng)濟(jì)效展和人民生活水平提高的重要因素節(jié)約用水要益和社會(huì)效益相當(dāng)可觀從點(diǎn)滴做起,因此,利用有效的方法將校園污水進(jìn)行回用,是建設(shè)綠色校園的重要標(biāo)志是解決高校1SBR處理工藝流程及構(gòu)筑物經(jīng)費(fèi)不足的新渠道,同時(shí)也是污水資源化的一個(gè)重要途徑1.1工藝流程所5000人規(guī)模的院校,建設(shè)處理能力為工藝流程見圖1(300-400)m3/d的中水處理站就可以滿足雜用遇一[格】一[泡一國(guó)應(yīng)]一[區(qū)木筆景觀用水、沖洗所沖洗汽車、噴灌草坪氣泵圖1SBR處理工藝流程圖校園污水(除化工實(shí)驗(yàn)樓排水外)經(jīng)格柵過最高水量也就是SBR反應(yīng)池的有效容積SBR運(yùn)濾后,進(jìn)入調(diào)節(jié)池,監(jiān)測(cè)水溫、pH值,由泵打入行周期由充水時(shí)間(1h)、反應(yīng)時(shí)間(4h)沉淀時(shí)SBR反應(yīng)池,按流入、反應(yīng)沉淀、排放、待機(jī)五個(gè)間(2h)排水時(shí)間(lh)和閑置時(shí)間(2h)來確工序,依次在同一SBR反應(yīng)池中周期性運(yùn)行定當(dāng)SⅥ值為100時(shí),可以注入反應(yīng)器有效容積1.2主要處理構(gòu)筑物100%的水量,SⅥ值升高注人反應(yīng)器的水量下1.2.1調(diào)節(jié)池降,當(dāng)SⅥ值為200時(shí),反應(yīng)器不能運(yùn)行校園污水的水量和水質(zhì)隨時(shí)間變化較大,為保證后續(xù)構(gòu)筑物的穩(wěn)定運(yùn)行需對(duì)水量、水質(zhì)適當(dāng)2實(shí)驗(yàn)機(jī)理調(diào)節(jié),設(shè)計(jì)調(diào)節(jié)時(shí)間為2h1.2.2SBR反應(yīng)池2.1SBR活性污泥校園污水可生化性良好,取SBR反應(yīng)池的容活性污泥是SBR處理系統(tǒng)的工作主體,其活積負(fù)荷為12 kg bOD.(m3·d).SBR反應(yīng)池的性污泥中的微生物主要由細(xì)菌組成數(shù)量可占污收稿日期:2007-11-22作者簡(jiǎn)介:鄧民(1961-),男,吉林通榆人,吉林化工學(xué)院副教授,主要從事環(huán)境工程方面的研究吉林化工學(xué)院學(xué)泥中微生物總量的95%以上此外,還有原生動(dòng)物和后生動(dòng)物等微型動(dòng)物22SBR工藝運(yùn)行接種污泥取自吉化污水處理廠,注入原水后進(jìn)行連續(xù)曝氣其間用100mL量筒取水樣觀測(cè)sV當(dāng)SBR反應(yīng)池內(nèi)混合液中出現(xiàn)少量活性污泥絮體時(shí),停止曝氣靜置沉淀后上清液排至污水管道然后將污水引入曝氣池進(jìn)行充分曝氣,經(jīng)12天曝氣后曝氣池內(nèi)就會(huì)出現(xiàn)大量的絮凝體重新進(jìn)水、曝氣約1個(gè)月左右觀測(cè)到混合液的Sv圖2時(shí)間與氨氮去除率的關(guān)系達(dá)到15%-20%此后按設(shè)計(jì)運(yùn)行時(shí)間4h曝氣沉淀2h,潷水器出水,排水比1/2.監(jiān)測(cè)出水水4結(jié)論質(zhì)在容積負(fù)荷為12 kgBOD.(m3·d),曝氣量1.3m3/h;運(yùn)行周期為10h;SVx28%條件下,降(1)SBR工藝是一種簡(jiǎn)易、快速且低耗的廢低水中的濁度氨氮、COD.結(jié)果表明na9.7%;水生物處理工藝它工藝簡(jiǎn)單、造價(jià)低;時(shí)間上具Ta988%;nm91.1%,待各項(xiàng)出水水質(zhì)指標(biāo)有理想的推流式反應(yīng)器的特性;運(yùn)行方式靈活可均達(dá)到設(shè)計(jì)要求可用于景觀用水沖洗廁所沖脫氮除磷具有較強(qiáng)的耐沖擊負(fù)荷的能力良好的洗汽車、噴灌草坪等.污泥沉降性能,不易產(chǎn)生污泥膨脹現(xiàn)象3實(shí)驗(yàn)結(jié)果討論(2)實(shí)驗(yàn)達(dá)到COD處理率為:957%,濁度處理率為:988%,氨氮處理率為91.1%3.1曝氣量與cOD。去除率的關(guān)系當(dāng)其它條件不變時(shí)改變曝氣量,COD去除參考文獻(xiàn):率有很大變化,見表1[1]張統(tǒng)CAS工藝處理小區(qū)污水及中水回用[]表1曝氣量與cOD。去除率的關(guān)系給水排水,2001,27(7):64-66曝氣量COD去曝氣量COD去(m3/h)除率/%(m3/h)除率/%[2]嚴(yán)煦世水和廢水技術(shù)研究[M]北京:中國(guó)建筑工74.8業(yè)出版社,1992.198-2021.38731.494.6[3]張丹住宅小區(qū)的污水回用(上)[冂].城市公用事業(yè),2001,15(1):25-26.32反應(yīng)時(shí)間與COD、氨氮去除率的關(guān)系[4]張丹住宅小區(qū)的污水回用(下)[]城市公用事選擇曝氣量為13m3/L進(jìn)水量為6776L業(yè),2001,15(3):23-25.的實(shí)驗(yàn)條件,進(jìn)行研究,實(shí)驗(yàn)結(jié)果如下[5] Roques H. Chemical Water Treatment: Principles andPractice[J]. Power Engineering, 1997, (5): 49-52[6 Roberson A. Future treads in sewage-disposal tech-nique[ M]. Washington: Marcel Deker Inc, 1997, 137[7] Kawamura S. Optimisation of basic water treatmentprocesMes-de sign and operation filtration AQUA[MLondon: Ann Arbor Science Publishers Inc, 1996. 225(下轉(zhuǎn)第88頁(yè))吉林化工學(xué)院學(xué)報(bào)出版社,1994參考文獻(xiàn):[2]華東師大數(shù)學(xué)系數(shù)學(xué)分析(第二版)[M]北京高等教育出版社,1990[1]江澤堅(jiān),吳智泉.實(shí)變函數(shù)論[M].北京:高等教育Necessary and sufficient conditions of the loweremi-continuous functionsIU Li-bo, XU Jie, CUI Xiao-mei, JIANG Hui-jieCollege of Sciences, Jilin Institute of Chemical Technology, Jilin City 132022, ChinaAbstract: The lower and upper semi-continuous functions are the developments of the continuous functionsThe characters of lower semi-continuous functions and the relation between lower semi-continuous functionsand step function are introduced in this paper.Key words: upper semi-continuous functions; lower semi-continuous functions; limit inferior; step function(上接第12頁(yè))Study on the treatment of campus wastewater by SBR technologyDENG Min, HUANG Jiang-liCollege of Environmental& Biological Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China)Abstract: The experimental research on the campus wastewater is implemented based on the SequencingBatch Reactor(SBR). The result showed that the removal rate of COD, turbidity and NH, N is respectively95.7%, 98.8%, 91.1% when total hRt is controlled at 10 h, volume loading is 1. 2 kgBOD/(m.c),theaerating is 1. 3m/h, svx is 28%. The processed water can meet the standard of reuse of urban recycling wa-ter- Water quality standard for urban miscellaneous water consumption(GB/T18920-2002Key words: wastewater of campus; SBR; wastewater