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  • 曝氣生物濾池

曝氣生物濾池

曝氣生(sheng)物濾(lv)池（Biological Aerated Filter）是一種新型污(wu)水(shui)生(sheng)物膜處理(li)技術，具有極好的脫氮(dan)和有機物降解效果，可直接將市(shi)政污(wu)水(shui)處理(li)達到(dao)《城鎮污(wu)水(shui)處理(li)廠污(wu)染物排放標準(zhun)(zhun)》（GB18918-2002）一級(ji)A標準(zhun)(zhun)或《城市(shi)污(wu)水(shui)再(zai)生(sheng)利用城市(shi)雜用水(shui)水(shui)質》（GB/T18920-2002）標準(zhun)(zhun)。

曝氣生物濾池


曝氣(qi)生(sheng)(sheng)物濾池（Biological Aerated Filter）是一(yi)種新型污(wu)水生(sheng)(sheng)物膜處(chu)理(li)技術，具有極好的脫氮和有機物降解(jie)效果，可直接將市(shi)政污(wu)水處(chu)理(li)達(da)到《城(cheng)(cheng)鎮污(wu)水處(chu)理(li)廠污(wu)染物排放(fang)標(biao)(biao)準(zhun)(zhun)》（GB18918-2002）一(yi)級A標(biao)(biao)準(zhun)(zhun)或《城(cheng)(cheng)市(shi)污(wu)水再生(sheng)(sheng)利(li)用(yong)城(cheng)(cheng)市(shi)雜用(yong)水水質》（GB/T18920-2002）標(biao)(biao)準(zhun)(zhun)。 

一般說來，曝氣生物濾池具有以下特征：
（1）用粒狀(zhuang)填料作為生物(wu)載體，如(ru)陶粒、焦(jiao)炭(tan)、石英(ying)砂、活(huo)性炭(tan)、改型聚(ju)胺酯(zhi)等。 （2）區(qu)別于一(yi)般生物(wu)濾(lv)池(chi)及生物(wu)濾(lv)塔，在去(qu)除BOD、氨氮時(shi)需進行曝氣。 
（3）高水力負(fu)荷、高容積負(fu)荷及高的(de)生物膜活性。 
（4）具有生物氧(yang)化降解和(he)截(jie)留SS的雙重(zhong)功(gong)能(neng)，生物處(chu)理(li)單元之后不需再設二次沉淀(dian)池。 
（5）需定(ding)期進行反沖洗，清洗濾池中截(jie)留的SS以及更(geng)新生物膜。
二、曝氣生物濾池工藝的主要優點 
（1）曝(pu)(pu)氣生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)是第三代(dai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)，是真正(zheng)集(ji)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)法與活(huo)(huo)(huo)性(xing)污(wu)(wu)泥法于一(yi)(yi)身的(de)(de)反(fan)應器，出水(shui)水(shui)質(zhi)(zhi)高(gao)(gao)、處(chu)理(li)(li)(li)負荷大。 滴濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)（普通生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)）被(bei)稱(cheng)為第一(yi)(yi)代(dai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)，也是生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)最初的(de)(de)雛形，高(gao)(gao)負荷生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)、生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)塔是在(zai)此基礎上發展起來的(de)(de)第二(er)代(dai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)，主要(yao)特征是增(zeng)加了(le)(le)處(chu)理(li)(li)(li)負荷。曝(pu)(pu)氣生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)對生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)進行了(le)(le)全面(mian)的(de)(de)革新(xin)：采用(yong)(yong)人工強(qiang)制(zhi)曝(pu)(pu)氣，代(dai)替了(le)(le)自然通風；采用(yong)(yong)粒(li)徑(jing)小、比表面(mian)積大的(de)(de)濾(lv)(lv)(lv)(lv)(lv)(lv)料(liao)，顯著(zhu)提高(gao)(gao)了(le)(le)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濃(nong)度；采用(yong)(yong)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)處(chu)理(li)(li)(li)與過濾(lv)(lv)(lv)(lv)(lv)(lv)處(chu)理(li)(li)(li)聯合方(fang)式，省去(qu)了(le)(le)二(er)次沉淀池(chi)(chi)(chi)(chi)；采用(yong)(yong)反(fan)沖洗的(de)(de)方(fang)式，免去(qu)了(le)(le)堵塞的(de)(de)可(ke)(ke)能，同時(shi)(shi)提高(gao)(gao)了(le)(le)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)的(de)(de)活(huo)(huo)(huo)性(xing)；采用(yong)(yong)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)加生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)絮體(ti)聯合處(chu)理(li)(li)(li)的(de)(de)方(fang)式，同時(shi)(shi)發揮了(le)(le)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)法和活(huo)(huo)(huo)性(xing)污(wu)(wu)泥法的(de)(de)優點。 曝(pu)(pu)氣生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)同時(shi)(shi)具(ju)有(you)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)氧(yang)化(hua)降(jiang)解和過濾(lv)(lv)(lv)(lv)(lv)(lv)的(de)(de)作用(yong)(yong)，因而可(ke)(ke)獲(huo)得很高(gao)(gao)的(de)(de)出水(shui)水(shui)質(zhi)(zhi)，可(ke)(ke)達到回用(yong)(yong)水(shui)水(shui)質(zhi)(zhi)標準(zhun)。一(yi)(yi)般(ban)(ban)來說，對生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)水(shui)，二(er)級處(chu)理(li)(li)(li)即(ji)(ji)可(ke)(ke)達到普通工藝三級處(chu)理(li)(li)(li)的(de)(de)水(shui)平。對工業廢水(shui)，即(ji)(ji)使(shi)(shi)在(zai)可(ke)(ke)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)化(hua)性(xing)不強(qiang)的(de)(de)情況下，曝(pu)(pu)氣生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)處(chu)理(li)(li)(li)效果也優于一(yi)(yi)般(ban)(ban)的(de)(de)工藝，因為曝(pu)(pu)氣生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)濾(lv)(lv)(lv)(lv)(lv)(lv)池(chi)(chi)(chi)(chi)處(chu)理(li)(li)(li)有(you)機物(wu)(wu)(wu)(wu)(wu)不僅依(yi)賴于生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)氧(yang)化(hua)，還存在(zai)顯著(zhu)的(de)(de)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)吸(xi)附(fu)和過濾(lv)(lv)(lv)(lv)(lv)(lv)作用(yong)(yong)，因為可(ke)(ke)去(qu)除粒(li)徑(jing)較大，可(ke)(ke)吸(xi)附(fu)去(qu)除一(yi)(yi)些可(ke)(ke)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)化(hua)性(xing)不強(qiang)的(de)(de)物(wu)(wu)(wu)(wu)(wu)質(zhi)(zhi)。由于填(tian)料(liao)本身截留(liu)及表面(mian)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)的(de)(de)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)絮凝作用(yong)(yong)，使(shi)(shi)得出水(shui)SS很底，一(yi)(yi)般(ban)(ban)不超(chao)過10mg/l，出水(shui)非常清(qing)澈透明；因不斷的(de)(de)反(fan)沖洗，生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)得以(yi)有(you)效更(geng)(geng)新(xin)，表現(xian)為生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)較薄（一(yi)(yi)般(ban)(ban)為110微米(mi)左右），活(huo)(huo)(huo)性(xing)很高(gao)(gao)。高(gao)(gao)活(huo)(huo)(huo)性(xing)的(de)(de)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜(mo)(mo)不僅體(ti)現(xian)在(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)氧(yang)化(hua)、降(jiang)解方(fang)面(mian)，更(geng)(geng)表現(xian)為生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)絮凝、吸(xi)附(fu)作用(yong)(yong)。對一(yi)(yi)些難降(jiang)解的(de)(de)物(wu)(wu)(wu)(wu)(wu)質(zhi)(zhi)，可(ke)(ke)將其(qi)吸(xi)附(fu)、截留(liu)在(zai)池(chi)(chi)(chi)(chi)中，得以(yi)去(qu)除。 
（2）占地面積(ji)小，基建投資(zi)省。 
（3）運行費(fei)用低(di)。曝氣(qi)生(sheng)物濾池工(gong)藝(yi)氧的傳(chuan)(chuan)輸利用效(xiao)率(lv)很高，曝氣(qi)量(liang)小，供氧動力消耗(hao)低(di)。氧的利用效(xiao)率(lv)可達(da)20－30％。工(gong)程(cheng)實踐表(biao)明(ming)，曝氣(qi)量(liang)為(wei)傳(chuan)(chuan)統活性污(wu)泥法的1／20，為(wei)氧化溝(gou)的1／6，為(wei)SBR的1／4—1／3，在很大程(cheng)度上(shang)節省(sheng)了運行費(fei)用。曝氣(qi)生(sheng)物濾池水頭損失(shi)較小，剩(sheng)余污(wu)泥量(liang)少且(qie)容易處(chu)理，維(wei)護(hu)量(liang)很少，這(zhe)都將(jiang)保證(zheng)運行費(fei)用較低(di)。 
（4）抗沖擊(ji)負荷能力(li)強，耐低溫。 
（5）易掛膜，啟動快。 
（6）曝氣生(sheng)物濾池采用模塊化結構，便于后期改、擴建。 
（7）不產生臭氣(qi)、環(huan)境質量高。 
我公(gong)司近幾年(nian)來一直從事曝氣(qi)生(sheng)物濾池(chi)（BAF）工藝的(de)研究和推廣，并建立了全(quan)國最大的(de)曝氣(qi)生(sheng)物濾池(chi)（BAF）系列設備生(sheng)產(chan)與(yu)制造的(de)產(chan)業化基地，在國內率(lv)先(xian)應用(yong)于市政污(wu)水(shui)(shui)、工業廢(fei)水(shui)(shui)處(chu)理(li)(li)和中(zhong)水(shui)(shui)回用(yong)工程，已完(wan)成(cheng)了100多項采用(yong)該(gai)工藝的(de)污(wu)水(shui)(shui)和中(zhong)水(shui)(shui)處(chu)理(li)(li)示范工程。 
由(you)我公司消化吸收國外最新技術、研(yan)究改進(jin)開(kai)發的(de)(de)曝氣生(sheng)(sheng)物(wu)(wu)(wu)濾(lv)(lv)(lv)池工(gong)藝(yi)技術，揉合了我公司的(de)(de)多項專利(li)技術，它的(de)(de)最大特點是使用(yong)一(yi)種(zhong)新型的(de)(de)球形輕質多孔(kong)(kong)生(sheng)(sheng)物(wu)(wu)(wu)濾(lv)(lv)(lv)料(liao)(liao)，在其表(biao)面及開(kai)口孔(kong)(kong)隙內生(sheng)(sheng)長微生(sheng)(sheng)物(wu)(wu)(wu)膜(mo)，污水(shui)(shui)由(you)下(xia)向上或由(you)上向下(xia)流(liu)經濾(lv)(lv)(lv)料(liao)(liao)層，濾(lv)(lv)(lv)料(liao)(liao)層下(xia)部提供曝氣。污水(shui)(shui)流(liu)經表(biao)面長滿生(sheng)(sheng)物(wu)(wu)(wu)膜(mo)的(de)(de)濾(lv)(lv)(lv)料(liao)(liao)時(shi)，其中的(de)(de)有(you)機物(wu)(wu)(wu)及氮得到降(jiang)解，同時(shi)生(sheng)(sheng)物(wu)(wu)(wu)濾(lv)(lv)(lv)料(liao)(liao)層截留(liu)污水(shui)(shui)中的(de)(de)SS和老(lao)化脫落(luo)生(sheng)(sheng)物(wu)(wu)(wu)膜(mo)并進(jin)行(xing)固液(ye)分(fen)離。定(ding)期利(li)用(yong)處理后的(de)(de)出水(shui)(shui)對濾(lv)(lv)(lv)池進(jin)行(xing)反沖洗，排除被截留(liu)的(de)(de)SS和老(lao)化脫落(luo)生(sheng)(sheng)物(wu)(wu)(wu)膜(mo)，促(cu)進(jin)濾(lv)(lv)(lv)料(liao)(liao)表(biao)面老(lao)化生(sheng)(sheng)物(wu)(wu)(wu)膜(mo)的(de)(de)脫落(luo)，使高(gao)活性的(de)(de)新鮮生(sheng)(sheng)物(wu)(wu)(wu)膜(mo)與污水(shui)(shui)直接(jie)接(jie)觸，提高(gao)了降(jiang)解速率和效率，使出水(shui)(shui)穩定(ding)達(da)標。
工藝技術優點：
1 、 總體(ti)投資省，包括機(ji)械(xie)設備、自(zi)控(kong)電氣系統、土建和征地費(fei)；
2 、占地(di)面(mian)積小，通常為常規(gui)處理(li)工藝(yi)占地(di)面(mian)積的 1/5-1/10 ，廠區布(bu)置(zhi)緊湊，美觀(guan)；
3 、處(chu)理出水質量好(hao)，可(ke)優于一級A排放標準或生活雜用水水質標準；
4 、工藝流程短，氧的傳輸效率(lv)高，系統充氧效率(lv)可(ke)達30%－35%，供氧動力消(xiao)耗(hao)低； 
5 、過濾(lv)速(su)度快(kuai)，處理負荷大大高(gao)于(yu)常規處理工藝；
6 、抗沖擊能力強，受氣候、水量和水質變化影(ying)響小，特別適合于天(tian)氣寒冷地區，并可間歇運行；
7 、可建成封閉式廠房，減少(shao)臭氣、噪聲對(dui)周圍環境(jing)的影響，視(shi)覺(jue)感官效果(guo)好；
8 、全部采用PLC智能控(kong)制，操作人(ren)員少，運行管理方便，便于維(wei)護；
9 、全(quan)部模(mo)塊化結構，便于(yu)進行后(hou)期(qi)的改擴建。
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