化工(gong)污水處理(li)中生物處理(li)法的應用

化工(gong)污(wu)水(shui)成分復雜、毒性強、濃度(du)高(gao)且水(shui)質(zhi)水(shui)量波(bo)動大，若直接(jie)排放，會(hui)對水(shui)體、土壤(rang)環境及人類健康造成嚴重(zhong)危害。生物處(chu)(chu)理(li)法在化工(gong)污(wu)水(shui)處(chu)(chu)理(li)中(zhong)具有重(zhong)要地位，它借助微(wei)生物新陳代謝(xie)作用降解有機污(wu)染物，具有環境友好、成本(ben)較低等(deng)優點。

活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)法是常用(yong)的好(hao)氧(yang)生(sheng)物處(chu)理(li)技術(shu)。其原理(li)是向污(wu)(wu)(wu)(wu)(wu)水(shui)中鼓入空氣(qi)，使(shi)微生(sheng)物大(da)量(liang)繁(fan)殖形成(cheng)活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)，通(tong)(tong)過吸附、分解(jie)和代(dai)謝去除(chu)有(you)(you)機污(wu)(wu)(wu)(wu)(wu)染物。該(gai)法由(you)曝(pu)氣(qi)池(chi)、沉淀(dian)池(chi)、污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)回流(liu)(liu)系統(tong)等構成(cheng)。污(wu)(wu)(wu)(wu)(wu)水(shui)進(jin)入曝(pu)氣(qi)池(chi)與活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)混合(he)，在(zai)曝(pu)氣(qi)提供氧(yang)氣(qi)的條(tiao)件下，微生(sheng)物進(jin)行有(you)(you)氧(yang)代(dai)謝。處(chu)理(li)后(hou)的混合(he)液流(liu)(liu)入沉淀(dian)池(chi)，活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)沉淀(dian)后(hou)回流(liu)(liu)以維持濃(nong)度，上清(qing)液達(da)標排放。活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)法對(dui)中、低(di)濃(nong)度有(you)(you)機化(hua)(hua)工(gong)污(wu)(wu)(wu)(wu)(wu)水(shui)效果(guo)顯(xian)著，處(chu)理(li)量(liang)大(da)。但(dan)它對(dui)水(shui)質水(shui)量(liang)變化(hua)(hua)敏感，易發生(sheng)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)膨(peng)脹，運行時需精細(xi)調控。例(li)如(ru)，在(zai)某(mou)大(da)型化(hua)(hua)工(gong)園區(qu)污(wu)(wu)(wu)(wu)(wu)水(shui)處(chu)理(li)廠，采(cai)用(yong)活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)法處(chu)理(li)綜(zong)合(he)化(hua)(hua)工(gong)污(wu)(wu)(wu)(wu)(wu)水(shui)，通(tong)(tong)過優(you)化(hua)(hua)曝(pu)氣(qi)強度、污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)回流(liu)(liu)比等參數，使(shi)出水(shui) COD 濃(nong)度從 800mg/L 降至 50mg/L 以下，滿足(zu)當(dang)地排放標準(zhun)。然(ran)而，當(dang)園區(qu)內(nei)部(bu)分企業工(gong)藝(yi)調整(zheng)導致污(wu)(wu)(wu)(wu)(wu)水(shui)水(shui)質突(tu)變時，活(huo)性(xing)(xing)(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)(ni)出現膨(peng)脹現象，處(chu)理(li)效果(guo)一度惡(e)化(hua)(hua)，經緊急調整(zheng)工(gong)藝(yi)參數并補(bu)充微生(sheng)物菌劑后(hou)才恢復正常。

生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)法(fa)(fa)利用(yong)附(fu)著于固體介質(zhi)表面(mian)的生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)處(chu)理(li)污(wu)水(shui)(shui)。生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)由微生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)及其分泌物(wu)(wu)(wu)組成，污(wu)水(shui)(shui)流經時污(wu)染(ran)物(wu)(wu)(wu)被吸(xi)附(fu)降解。常(chang)見工(gong)(gong)藝有生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)濾(lv)池、生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)轉(zhuan)盤、生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)接(jie)觸(chu)氧(yang)化(hua)池等。生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)濾(lv)池通過布水(shui)(shui)裝置將(jiang)污(wu)水(shui)(shui)灑(sa)在(zai)(zai)濾(lv)料(liao)(liao)表面(mian)形成生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)凈(jing)化(hua)污(wu)水(shui)(shui)；生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)轉(zhuan)盤依靠圓盤轉(zhuan)動使生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)交替(ti)接(jie)觸(chu)污(wu)水(shui)(shui)與空氣去(qu)除污(wu)染(ran)物(wu)(wu)(wu)；生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)接(jie)觸(chu)氧(yang)化(hua)池則在(zai)(zai)曝(pu)氣池中填(tian)充填(tian)料(liao)(liao)形成生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)并(bing)強化(hua)處(chu)理(li)效果。生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)法(fa)(fa)適應(ying)性(xing)強、污(wu)泥產量少且無需回流，適用(yong)于各類濃度化(hua)工(gong)(gong)污(wu)水(shui)(shui)，在(zai)(zai)小型(xing)化(hua)工(gong)(gong)企業或污(wu)水(shui)(shui)量小的場景應(ying)用(yong)廣泛。不過，生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)易(yi)脫(tuo)(tuo)落，填(tian)料(liao)(liao)需定(ding)期更換。如某(mou)小型(xing)化(hua)工(gong)(gong)企業采用(yong)生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)接(jie)觸(chu)氧(yang)化(hua)法(fa)(fa)處(chu)理(li)生(sheng)(sheng)(sheng)(sheng)(sheng)產污(wu)水(shui)(shui)，日常(chang)運行(xing)穩定(ding)，出水(shui)(shui)水(shui)(shui)質(zhi)達標(biao)。但運行(xing)一段時間后(hou)，由于生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)過度生(sheng)(sheng)(sheng)(sheng)(sheng)長，部(bu)分脫(tuo)(tuo)落導致(zhi)出水(shui)(shui)水(shui)(shui)質(zhi)波動，更換部(bu)分填(tian)料(liao)(liao)并(bing)優(you)化(hua)運行(xing)條件后(hou)，系統恢復穩定(ding)運行(xing)。

生物(wu)(wu)處(chu)(chu)(chu)(chu)理(li)(li)法(fa)(fa)在化工污(wu)水處(chu)(chu)(chu)(chu)理(li)(li)中雖有(you)諸(zhu)多優勢，但單(dan)一生物(wu)(wu)處(chu)(chu)(chu)(chu)理(li)(li)法(fa)(fa)有(you)時難以滿(man)足(zu)復(fu)雜(za)化工污(wu)水的(de)處(chu)(chu)(chu)(chu)理(li)(li)需求。因此，常需結合物(wu)(wu)理(li)(li)、化學(xue)處(chu)(chu)(chu)(chu)理(li)(li)方(fang)法(fa)(fa)，或采用(yong)多種生物(wu)(wu)處(chu)(chu)(chu)(chu)理(li)(li)工藝組合的(de)方(fang)式，以實現(xian)化工污(wu)水的(de)高效、穩(wen)定處(chu)(chu)(chu)(chu)理(li)(li)，推動化工行業(ye)可持續(xu)發展，減(jian)少對環境(jing)的(de)污(wu)染(ran)與破壞。

山(shan)東中泰環(huan)保專(zhuan)業污水(shui)處(chu)理二十年。公司擁有專(zhuan)業的(de)技術(shu)團隊和先(xian)進的(de)處(chu)理設備(bei)，致力(li)于(yu)為(wei)客戶提供(gong)高(gao)效、環(huan)保的(de)污水(shui)處(chu)理解決方案。以(yi)創(chuang)新為(wei)動(dong)力(li)，以(yi)質(zhi)量為(wei)根本，如果您(nin)需要購買污水(shui)處(chu)理設備(bei)，歡迎(ying)留言或來(lai)電聯系(xi)我(wo)們。