生活污水凈水工藝在水泥廠的應用

時(shi)間:2022-09-28 16:12:31

導語:生活污水(shui)凈(jing)水(shui)工藝(yi)在水(shui)泥廠的應用一文(wen)來源于網友上傳(chuan),不代表(biao)本站(zhan)觀點,若需要(yao)原創文(wen)章(zhang)可咨詢客服老師,歡迎參(can)考。

生活污水凈水工藝在水泥廠的應用

摘要:為了將水泥生產廠區的生活污水全部回收復用至水泥生產線的補水、綠化、除塵和消防等方面,放棄常規處理方法,選擇了A3/O+MBR(生物接觸氧化法+膜-生物反應器兩種工藝)生活污水凈水工藝。相(xiang)較傳統的處(chu)理方式(shi),實現了裝(zhuang)置自動(dong)化與智(zhi)能(neng)化,出水水質完全達(da)標且穩定(ding)可靠,處(chu)理后的水可全部回到廠區循環再利用(yong)。

關鍵詞水泥廠;生活污水;生物接觸氧化法;膜-生物反應器;凈水工藝

水(shui)(shui)(shui)(shui)泥廠的生活(huo)污(wu)水(shui)(shui)(shui)(shui)含有(you)(you)大量的磷、氨氮、油脂、膠(jiao)團等(deng)(deng)各類有(you)(you)機(ji)物及(ji)泥沙(sha)等(deng)(deng)雜(za)物,其常規的處(chu)(chu)(chu)理(li)方法主(zhu)要有(you)(you)兩級接觸氧化+沉淀、活(huo)性污(wu)泥法+沉淀、SBR法等(deng)(deng),這(zhe)些(xie)傳統工(gong)藝(yi)常常存在投入(ru)成本高、占用(yong)面(mian)積大、設備(bei)利用(yong)率低(di)、扛沖(chong)擊(ji)能(neng)力低(di)、出(chu)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質不穩(wen)定、自控(kong)程度低(di)、運行(xing)管理(li)困難等(deng)(deng)缺點(dian),導致水(shui)(shui)(shui)(shui)泥企業經常面(mian)臨超(chao)標排放(fang)、可復用(yong)程度低(di)、管理(li)難度大等(deng)(deng)問題(ti)。華(hua)潤(run)水(shui)(shui)(shui)(shui)泥(平(ping)南(nan))有(you)(you)限公司(si)(以下簡稱“華(hua)潤(run)平(ping)南(nan)”)為了將其廠區生活(huo)污(wu)水(shui)(shui)(shui)(shui)全部回收復用(yong)至廠區內(nei)生產線的補水(shui)(shui)(shui)(shui)、綠化、除塵(chen)和消防等(deng)(deng)方面(mian),放(fang)棄常規處(chu)(chu)(chu)理(li)方法,選擇了A3/O+MBR生活(huo)污(wu)水(shui)(shui)(shui)(shui)凈(jing)水(shui)(shui)(shui)(shui)工(gong)藝(yi)(以下簡稱“A3/O+MBR工(gong)藝(yi)”),實現了預期節水(shui)(shui)(shui)(shui)用(yong)水(shui)(shui)(shui)(shui)目標。本文在簡介幾(ji)種常規處(chu)(chu)(chu)理(li)方法的基礎(chu)上(shang),對(dui)A3/O+MBR工(gong)藝(yi)及(ji)其在華(hua)潤(run)平(ping)南(nan)的使用(yong)效果進行(xing)介紹。

1工程概況與目標

華潤平南(nan)2×5000t/d熟料生(sheng)(sheng)產線所(suo)在(zai)廠(chang)區(qu)內每天(tian)產生(sheng)(sheng)約400t生(sheng)(sheng)活(huo)污水(shui)(shui),含有(you)大量的磷、氨氮(dan)、油(you)脂(zhi)、膠團等(deng)各(ge)類有(you)機物及泥沙等(deng)雜物,該(gai)生(sheng)(sheng)活(huo)污水(shui)(shui)需(xu)要(yao)(yao)(yao)認(ren)真選擇(ze)處(chu)理(li)工藝,進(jin)行科學(xue)處(chu)理(li),不(bu)僅要(yao)(yao)(yao)解決(jue)水(shui)(shui)中含有(you)的各(ge)類有(you)機物和雜質(zhi)成(cheng)分,還(huan)要(yao)(yao)(yao)進(jin)行紫外殺菌消毒(du),且(qie)要(yao)(yao)(yao)求處(chu)理(li)后的出(chu)水(shui)(shui)水(shui)(shui)質(zhi)達到《城(cheng)鎮污水(shui)(shui)處(chu)理(li)廠(chang)污染(ran)物排放標(biao)(biao)準(zhun)》(GB18918-2002)一級A標(biao)(biao)準(zhun),可全部(bu)回(hui)收復(fu)用至廠(chang)區(qu)內生(sheng)(sheng)產線補(bu)水(shui)(shui)、綠化(hua)、除塵和消防(fang)用水(shui)(shui)等(deng)。

2水泥企業常規污水處理工藝

2.1兩級(ji)接觸氧化(hua)+沉淀

“兩級接(jie)觸(chu)(chu)氧(yang)(yang)化(hua)+沉(chen)(chen)淀”處理(li)工藝(yi)具有生(sheng)(sheng)物(wu)(wu)(wu)(wu)接(jie)觸(chu)(chu)氧(yang)(yang)化(hua)法(fa)的(de)優(you)點。生(sheng)(sheng)物(wu)(wu)(wu)(wu)接(jie)觸(chu)(chu)氧(yang)(yang)化(hua)法(fa)的(de)原理(li)就(jiu)是靠污(wu)水充分與生(sheng)(sheng)物(wu)(wu)(wu)(wu)膜(mo)碰觸(chu)(chu),然(ran)后通過微生(sheng)(sheng)物(wu)(wu)(wu)(wu)的(de)幫助,使(shi)污(wu)水得到(dao)處理(li)。“兩級接(jie)觸(chu)(chu)氧(yang)(yang)化(hua)+沉(chen)(chen)淀”處理(li)工藝(yi)的(de)特點就(jiu)是在反(fan)應池內有適合微生(sheng)(sheng)物(wu)(wu)(wu)(wu)生(sheng)(sheng)長的(de)地方(fang),但(dan)池內就(jiu)不會發生(sheng)(sheng)污(wu)泥膨脹(zhang)現(xian)象。另(ling)外,這種(zhong)方(fang)法(fa)還(huan)有凈化(hua)的(de)作用,不僅能消滅有機(ji)物(wu)(wu)(wu)(wu),還(huan)可去除氧(yang)(yang)和(he)磷[1]。但(dan)該工藝(yi)下的(de)沉(chen)(chen)淀池的(de)抗(kang)沖(chong)擊能力較(jiao)差,當進水的(de)懸浮物(wu)(wu)(wu)(wu)偏高、填料的(de)菌團大量脫落時,無法(fa)使(shi)出水達(da)標(biao),經常(chang)存在超標(biao)排(pai)放等(deng)問題。

2.2活性污(wu)泥法+沉(chen)淀

活性污(wu)泥法處理(li)(li)負荷高,容易(yi)發(fa)生絲狀菌(jun)膨(peng)脹;污(wu)泥沉(chen)淀時間長,沉(chen)淀池(chi)建(jian)設占地面積大(da);對沉(chen)降性差(cha)的出水,懸浮物超標嚴重;僅適用于大(da)型污(wu)水處理(li)(li)廠項目。

2.3SBR法

SBR工(gong)藝出(chu)(chu)水(shui)(shui)水(shui)(shui)質(zhi)(zhi)較(jiao)好(hao),不產(chan)生(sheng)污泥膨脹;除磷脫氮效果好(hao)。該工(gong)藝按時序運(yun)(yun)行,一個操作周期分五個階(jie)段(duan):進水(shui)(shui)、反(fan)(fan)應(ying)(ying)、沉(chen)淀、潷水(shui)(shui)和(he)閑置(zhi)。在SBR的(de)運(yun)(yun)行過程中,各階(jie)段(duan)的(de)運(yun)(yun)行時間、反(fan)(fan)應(ying)(ying)器(qi)內混合液體積的(de)變(bian)化以(yi)及運(yun)(yun)行狀(zhuang)態(tai)等都可(ke)(ke)以(yi)根(gen)據具(ju)體污水(shui)(shui)的(de)性質(zhi)(zhi)、出(chu)(chu)水(shui)(shui)水(shui)(shui)質(zhi)(zhi)、出(chu)(chu)水(shui)(shui)質(zhi)(zhi)量與(yu)運(yun)(yun)行功能要求(qiu)等靈活變(bian)化。對(dui)于SBR反(fan)(fan)應(ying)(ying)器(qi)來說,這只是時序控(kong)制(zhi),無(wu)空間控(kong)制(zhi)障礙,可(ke)(ke)以(yi)靈活控(kong)制(zhi),但池容和(he)設(she)備(bei)利用率低(di),占地(di)面(mian)積較(jiao)大、運(yun)(yun)行管理復雜(za),自(zi)控(kong)水(shui)(shui)平要求(qiu)高。

2.4小結

從以上三(san)種傳統(tong)工藝在水泥廠生活污水處理(li)中的(de)實踐來(lai)看,總體上表現為(wei)抗(kang)沖擊能力差、出(chu)水不穩定(ding)、設備利用(yong)率(lv)低(di)、項目投(tou)資(zi)成本高(gao)、占地(di)面(mian)積大(da)、運行管理(li)復雜、自控程度低(di)、維護技術(shu)難(nan)度高(gao)等難(nan)題,水泥企業(ye)也因此面(mian)臨超標(biao)排放(fang),環保罰款等風險。

3A3/O+MBR工藝的原理與特點

華潤平南通過比選,放棄(qi)傳統的生(sheng)活(huo)污水(shui)處(chu)理工(gong)藝(yi),決定(ding)引入A3/O+MBR工(gong)藝(yi)對廠區生(sheng)活(huo)污水(shui)進(jin)行處(chu)理。

3.1A3/O+MBR工藝的原理

A3/O+MBR工(gong)藝(見圖(tu)1)是以填(tian)料(liao)作生(sheng)(sheng)物(wu)載體,通過(guo)風機供氧(yang)(yang)(yang)(yang)(yang)(yang)曝氣(qi)的(de)(de)(de)(de)(de)作用達(da)到(dao)充氧(yang)(yang)(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de);整(zheng)合(he)了預脫(tuo)(tuo)硝(xiao)+厭氧(yang)(yang)(yang)(yang)(yang)(yang)-缺氧(yang)(yang)(yang)(yang)(yang)(yang)-好(hao)氧(yang)(yang)(yang)(yang)(yang)(yang)生(sheng)(sheng)物(wu)法和膜(mo)生(sheng)(sheng)物(wu)反應(ying)器兩種(zhong)工(gong)藝,加入(ru)微(wei)生(sheng)(sheng)物(wu)控(kong)制系統以實現設備運(yun)行(xing)自動化、裝置(zhi)管(guan)理無人(ren)化。A3/O+MBR工(gong)藝的(de)(de)(de)(de)(de)原(yuan)理現結合(he)工(gong)程進(jin)(jin)行(xing)講解(jie)。華潤平南2×5000t/d熟料(liao)生(sheng)(sheng)產線(xian)各收集點的(de)(de)(de)(de)(de)生(sheng)(sheng)活(huo)(huo)圖(tu)1A3/O+MBR工(gong)藝流(liu)(liu)(liu)程圖(tu)污水(shui)在經過(guo)3mm機械(xie)格柵處理后(hou)(hou)(hou),一些大(da)(da)顆粒垃圾(ji)被去除。除渣后(hou)(hou)(hou)的(de)(de)(de)(de)(de)生(sheng)(sheng)活(huo)(huo)污水(shui)進(jin)(jin)入(ru)調節(jie)池(chi)(chi),進(jin)(jin)行(xing)均質(zhi)均化,再(zai)由(you)提升泵(beng)送(song)(song)入(ru)預脫(tuo)(tuo)硝(xiao)池(chi)(chi),和好(hao)氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)回流(liu)(liu)(liu)的(de)(de)(de)(de)(de)污泥(ni)(ni)進(jin)(jin)行(xing)初步混合(he),達(da)到(dao)初步脫(tuo)(tuo)氮(dan)(dan)除磷的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)。之后(hou)(hou)(hou)自流(liu)(liu)(liu)入(ru)厭氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)、缺氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi),在厭氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)、缺氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)進(jin)(jin)行(xing)反硝(xiao)化反應(ying),將(jiang)大(da)(da)部分(fen)(fen)(fen)硝(xiao)酸鹽(yan)還原(yuan)成(cheng)(cheng)氮(dan)(dan)氣(qi),使氮(dan)(dan)氣(qi)從廢水(shui)中(zhong)溢出,達(da)到(dao)去除氨氮(dan)(dan)的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de);缺氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)出水(shui)自流(liu)(liu)(liu)至好(hao)氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi),好(hao)氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)內(nei)設鼓(gu)風曝氣(qi),去除大(da)(da)部分(fen)(fen)(fen)有機污染物(wu),并將(jiang)進(jin)(jin)水(shui)中(zhong)的(de)(de)(de)(de)(de)大(da)(da)部分(fen)(fen)(fen)氨氮(dan)(dan)轉(zhuan)化成(cheng)(cheng)硝(xiao)酸鹽(yan)氮(dan)(dan),并吸收水(shui)中(zhong)的(de)(de)(de)(de)(de)磷元素(su),磷成(cheng)(cheng)為細菌(jun)的(de)(de)(de)(de)(de)一部分(fen)(fen)(fen),之后(hou)(hou)(hou)隨(sui)著排(pai)泥(ni)(ni)的(de)(de)(de)(de)(de)過(guo)程被去除。好(hao)氧(yang)(yang)(yang)(yang)(yang)(yang)池(chi)(chi)出水(shui)由(you)池(chi)(chi)上部連通口自流(liu)(liu)(liu)入(ru)MBR膜(mo)池(chi)(chi)。MBR膜(mo)生(sheng)(sheng)物(wu)反應(ying)器將(jiang)生(sheng)(sheng)化反應(ying)池(chi)(chi)里面(mian)的(de)(de)(de)(de)(de)活(huo)(huo)性污泥(ni)(ni)及大(da)(da)分(fen)(fen)(fen)子物(wu)質(zhi)截(jie)流(liu)(liu)(liu)住,產生(sheng)(sheng)的(de)(de)(de)(de)(de)清水(shui)送(song)(song)到(dao)接觸(chu)消毒池(chi)(chi),由(you)殺菌(jun)劑、紫外(wai)線(xian)滅菌(jun)燈聯合(he)殺菌(jun)后(hou)(hou)(hou)經出水(shui)泵(beng)送(song)(song)到(dao)廠區用于綠化。MBR膜(mo)池(chi)(chi)的(de)(de)(de)(de)(de)污泥(ni)(ni)定期自動排(pai)入(ru)污泥(ni)(ni)池(chi)(chi),定期進(jin)(jin)行(xing)污泥(ni)(ni)脫(tuo)(tuo)水(shui),壓成(cheng)(cheng)泥(ni)(ni)餅后(hou)(hou)(hou)外(wai)運(yun)可(ke)作為水(shui)泥(ni)(ni)原(yuan)料(liao),濾(lv)液回流(liu)(liu)(liu)到(dao)調節(jie)池(chi)(chi)。

3.2A3/O+MBR工藝特點

該工(gong)(gong)藝整合(he)了(le)預脫(tuo)硝(xiao)+厭(yan)氧(yang)-缺氧(yang)-好氧(yang)生(sheng)(sheng)物(wu)(wu)法(fa)(fa)(fa)和(he)(he)膜(mo)(mo)(mo)(mo)生(sheng)(sheng)物(wu)(wu)反(fan)應(ying)(ying)器(qi)兩種工(gong)(gong)藝。預脫(tuo)硝(xiao)+厭(yan)氧(yang)-缺氧(yang)-好氧(yang)生(sheng)(sheng)物(wu)(wu)法(fa)(fa)(fa)簡稱生(sheng)(sheng)物(wu)(wu)接觸(chu)氧(yang)化(hua)(hua)(hua)(hua)法(fa)(fa)(fa),具有(you)(you)生(sheng)(sheng)物(wu)(wu)膜(mo)(mo)(mo)(mo)法(fa)(fa)(fa)的(de)(de)基本特點,但又與(yu)一(yi)(yi)般生(sheng)(sheng)物(wu)(wu)膜(mo)(mo)(mo)(mo)法(fa)(fa)(fa)不(bu)盡相同。一(yi)(yi)是(shi)供(gong)微生(sheng)(sheng)物(wu)(wu)棲附的(de)(de)填(tian)料全部(bu)浸在(zai)廢(fei)水(shui)(shui)中(zhong),所以(yi)生(sheng)(sheng)物(wu)(wu)接觸(chu)氧(yang)化(hua)(hua)(hua)(hua)池(chi)(chi)(chi)(chi)又稱淹沒(mei)(mei)式濾(lv)池(chi)(chi)(chi)(chi);二是(shi)采用(yong)(yong)機械設備(bei)向(xiang)廢(fei)水(shui)(shui)中(zhong)充氧(yang),而不(bu)同于一(yi)(yi)般生(sheng)(sheng)物(wu)(wu)濾(lv)池(chi)(chi)(chi)(chi)靠自(zi)然通(tong)風供(gong)氧(yang),相當于在(zai)曝(pu)氣池(chi)(chi)(chi)(chi)中(zhong)添加供(gong)微生(sheng)(sheng)物(wu)(wu)棲附的(de)(de)填(tian)料,也(ye)可稱為曝(pu)氣循環型(xing)(xing)濾(lv)池(chi)(chi)(chi)(chi)或接觸(chu)曝(pu)氣池(chi)(chi)(chi)(chi);三是(shi)池(chi)(chi)(chi)(chi)內(nei)(nei)廢(fei)水(shui)(shui)中(zhong)還存(cun)在(zai)約2%~5%的(de)(de)懸浮狀態活(huo)性(xing)污(wu)泥(ni)(ni)(ni)(ni),對廢(fei)水(shui)(shui)也(ye)起凈(jing)化(hua)(hua)(hua)(hua)作用(yong)(yong)。因此(ci)生(sheng)(sheng)物(wu)(wu)接觸(chu)氧(yang)化(hua)(hua)(hua)(hua)法(fa)(fa)(fa)是(shi)一(yi)(yi)種具有(you)(you)活(huo)性(xing)污(wu)泥(ni)(ni)(ni)(ni)法(fa)(fa)(fa)特點的(de)(de)生(sheng)(sheng)物(wu)(wu)膜(mo)(mo)(mo)(mo)法(fa)(fa)(fa),兼有(you)(you)生(sheng)(sheng)物(wu)(wu)膜(mo)(mo)(mo)(mo)法(fa)(fa)(fa)和(he)(he)活(huo)性(xing)污(wu)泥(ni)(ni)(ni)(ni)法(fa)(fa)(fa)的(de)(de)優點。膜(mo)(mo)(mo)(mo)生(sheng)(sheng)物(wu)(wu)反(fan)應(ying)(ying)器(qi)工(gong)(gong)藝(MBR工(gong)(gong)藝)是(shi)膜(mo)(mo)(mo)(mo)分(fen)離技術(shu)(shu)與(yu)生(sheng)(sheng)物(wu)(wu)技術(shu)(shu)有(you)(you)機結(jie)合(he)的(de)(de)新(xin)型(xing)(xing)廢(fei)水(shui)(shui)處(chu)理(li)技術(shu)(shu)。它(ta)利(li)用(yong)(yong)膜(mo)(mo)(mo)(mo)分(fen)離設備(bei)將生(sheng)(sheng)化(hua)(hua)(hua)(hua)反(fan)應(ying)(ying)池(chi)(chi)(chi)(chi)中(zhong)的(de)(de)活(huo)性(xing)污(wu)泥(ni)(ni)(ni)(ni)和(he)(he)大分(fen)子有(you)(you)機物(wu)(wu)質截(jie)留住,省掉二沉池(chi)(chi)(chi)(chi)。活(huo)性(xing)污(wu)泥(ni)(ni)(ni)(ni)濃度因此(ci)大大提高(gao),水(shui)(shui)力停留時間(HRT)和(he)(he)污(wu)泥(ni)(ni)(ni)(ni)停留時間(SRT)可以(yi)分(fen)別控制,而難降解(jie)的(de)(de)物(wu)(wu)質在(zai)反(fan)應(ying)(ying)器(qi)中(zhong)不(bu)斷反(fan)應(ying)(ying)、降解(jie)。因此(ci),膜(mo)(mo)(mo)(mo)生(sheng)(sheng)物(wu)(wu)反(fan)應(ying)(ying)器(qi)工(gong)(gong)藝通(tong)過(guo)膜(mo)(mo)(mo)(mo)分(fen)離技術(shu)(shu)大大強(qiang)(qiang)化(hua)(hua)(hua)(hua)了(le)生(sheng)(sheng)物(wu)(wu)反(fan)應(ying)(ying)器(qi)的(de)(de)功能(neng)。與(yu)傳統的(de)(de)生(sheng)(sheng)物(wu)(wu)處(chu)理(li)方法(fa)(fa)(fa)相比,具有(you)(you)生(sheng)(sheng)化(hua)(hua)(hua)(hua)效率高(gao)、抗負(fu)荷(he)沖擊能(neng)力強(qiang)(qiang)、出(chu)水(shui)(shui)水(shui)(shui)質穩定(ding)、占地面(mian)(mian)積(ji)小、排泥(ni)(ni)(ni)(ni)周期長、易實現自(zi)動控制等優點,是(shi)目前最(zui)有(you)(you)前途(tu)的(de)(de)廢(fei)水(shui)(shui)處(chu)理(li)技術(shu)(shu)之(zhi)一(yi)(yi)。中(zhong)空纖維膜(mo)(mo)(mo)(mo)組件(jian)置(zhi)于MBR中(zhong),污(wu)水(shui)(shui)浸沒(mei)(mei)膜(mo)(mo)(mo)(mo)組件(jian)通(tong)過(guo)自(zi)吸(xi)泵(beng)(beng)的(de)(de)抽(chou)吸(xi),利(li)用(yong)(yong)膜(mo)(mo)(mo)(mo)絲內(nei)(nei)腔的(de)(de)抽(chou)吸(xi)負(fu)壓來運行;鼓風機曝(pu)氣,在(zai)提供(gong)微生(sheng)(sheng)物(wu)(wu)生(sheng)(sheng)長所必(bi)須(xu)的(de)(de)溶(rong)解(jie)氧(yang)之(zhi)外(wai),還使上升的(de)(de)氣泡及其產生(sheng)(sheng)的(de)(de)紊動水(shui)(shui)流清洗膜(mo)(mo)(mo)(mo)絲表面(mian)(mian),阻(zu)止污(wu)泥(ni)(ni)(ni)(ni)聚集,保持膜(mo)(mo)(mo)(mo)通(tong)量穩定(ding),設計氣水(shui)(shui)比為20∶1;MBR中(zhong)產生(sheng)(sheng)的(de)(de)剩余污(wu)泥(ni)(ni)(ni)(ni)由氣提泵(beng)(beng)定(ding)量提升至污(wu)泥(ni)(ni)(ni)(ni)濃縮池(chi)(chi)(chi)(chi),污(wu)泥(ni)(ni)(ni)(ni)在(zai)其中(zhong)濃縮,并使污(wu)泥(ni)(ni)(ni)(ni)減容,上清液回流至調節(jie)池(chi)(chi)(chi)(chi),MBR出(chu)水(shui)(shui)由自(zi)吸(xi)泵(beng)(beng)抽(chou)送至回用(yong)(yong)水(shui)(shui)池(chi)(chi)(chi)(chi)[2]。

4應用效果

華潤平(ping)南(nan)2×5000t/d熟料生產(chan)線生活污(wu)水(shui)(shui)(shui)(shui)(約(yue)400m3/d)主(zhu)要來源于(yu)食堂、中(zhong)控樓等,采用(yong)(yong)A3/O+MBR工(gong)藝(yi)(yi)(yi)(yi)處(chu)(chu)(chu)理(li)。運行實踐(jian)證明,該工(gong)藝(yi)(yi)(yi)(yi)對水(shui)(shui)(shui)(shui)質變化(hua)(hua)適應能力強(qiang),出水(shui)(shui)(shui)(shui)COD、總(zong)磷、氨氮、總(zong)氮等參(can)數均(jun)穩定(ding)可(ke)靠,水(shui)(shui)(shui)(shui)質參(can)數均(jun)可(ke)達(da)到《污(wu)水(shui)(shui)(shui)(shui)綜(zong)合排(pai)放標準(zhun)》(GB18918-2002)一(yi)級A標準(zhun)。出水(shui)(shui)(shui)(shui)可(ke)達(da)到《污(wu)水(shui)(shui)(shui)(shui)綜(zong)合排(pai)放標準(zhun)》(GB18918-2002)一(yi)級A標準(zhun),且穩定(ding)可(ke)靠,能夠完全進行回收復用(yong)(yong)到生產(chan)系統(tong)(tong)或廠區綠(lv)化(hua)(hua)等用(yong)(yong)水(shui)(shui)(shui)(shui)。傳統(tong)(tong)工(gong)藝(yi)(yi)(yi)(yi)處(chu)(chu)(chu)理(li)污(wu)水(shui)(shui)(shui)(shui)出水(shui)(shui)(shui)(shui)不(bu)穩定(ding),一(yi)般出水(shui)(shui)(shui)(shui)只能少量復用(yong)(yong)到廠區綠(lv)化(hua)(hua)、消防(fang)(fang)等情況,難以復用(yong)(yong)至生產(chan)線。而A3/O+MBR工(gong)藝(yi)(yi)(yi)(yi)出水(shui)(shui)(shui)(shui)可(ke)復用(yong)(yong)到生產(chan)線補水(shui)(shui)(shui)(shui)、綠(lv)化(hua)(hua)、除(chu)塵和消防(fang)(fang)用(yong)(yong)水(shui)(shui)(shui)(shui)等各方(fang)面用(yong)(yong)水(shui)(shui)(shui)(shui),不(bu)僅節約(yue)大量水(shui)(shui)(shui)(shui)資源,還減少污(wu)水(shui)(shui)(shui)(shui)排(pai)放對環(huan)境的(de)污(wu)染,避免(mian)企(qi)業因(yin)違反用(yong)(yong)水(shui)(shui)(shui)(shui)定(ding)額規定(ding)而遭受額外的(de)處(chu)(chu)(chu)罰(fa)。華潤平(ping)南(nan)一(yi)套日處(chu)(chu)(chu)理(li)400m3水(shui)(shui)(shui)(shui)量的(de)A3/O+MBR工(gong)藝(yi)(yi)(yi)(yi),平(ping)均(jun)負荷按75%計算,每年可(ke)回收復用(yong)(yong)水(shui)(shui)(shui)(shui)量達(da)109500m3,經濟效益好(hao),環(huan)保價值高(gao)。

參考文獻

[1]郭力(li)偉(wei).生活污水處理技術(shu)研究[J].節能與環保,2014(8):243,245.

[2]惠州(zhou)市(shi)東江環保技術有(you)限公司.一種可自(zi)消(xiao)泡自(zi)除泥的MBR膜箱:CN202121157347.9[P].2021-05-25.

作(zuo)者:趙輝(hui) 陳(chen)偉(wei) 錢進 王忠 張新 單位:華潤(run)水(shui)泥(ni)投資有(you)限(xian)公(gong)司(si)(si) 江蘇舜(shun)維環境工(gong)程有(you)限(xian)公(gong)司(si)(si)