實驗室廢(fei)水(shui)處(chu)理工藝包括:物(wu)(wu)理化學法(fa)、生(sheng)物(wu)(wu)法(fa)和物(wu)(wu)化—生(sheng)物(wu)(wu)法(fa),其中物(wu)(wu)化法(fa)既可(ke)作(zuo)為單獨(du)的(de)(de)處(chu)理工藝,也可(ke)作(zuo)為生(sheng)物(wu)(wu)法(fa)的(de)(de)預處(chu)理或后處(chu)理工序。
學校實驗室的廢(fei)水是(shi)如何處理?
對常(chang)用的好氧(yang)處理(li)工(gong)藝(yi)進行比較,普通活性(xing)污泥法(fa)和生物(wu)(wu)轉盤存在(zai)工(gong)程(cheng)投(tou)資高、工(gong)藝(yi)復雜和運(yun)行管(guan)理(li)不便(bian)等(deng)問題;氧(yang)化(hua)溝雖處理(li)效(xiao)果好,剩余污泥產生量少,但占地(di)面積大(da)雖然只需設(she)單一的反應池,即可完成(cheng)調節、曝氣、沉淀等(deng)功能,工(gong)藝(yi)流程(cheng)簡單、占地(di)面積少,但該法(fa)操作管(guan)理(li)嚴格,且(qie)大(da)部分自控(kong)設(she)備要(yao)依賴進口,造價(jia)高;生物(wu)(wu)接觸氧(yang)化(hua)法(fa)容積負荷高、處理(li)效(xiao)果穩定(ding),污泥產量少,無污泥膨脹現象,且(qie)耐沖(chong)擊負荷、運(yun)行和管(guan)理(li)經驗(yan)成(cheng)熟。與前幾種生物(wu)(wu)處理(li)法(fa)相比,生物(wu)(wu)接觸氧(yang)化(hua)法(fa)具有運(yun)行成(cheng)本(ben)低(di)、結構緊湊、占地(di)少、投(tou)資省、操作管(guan)理(li)方便(bian)等(deng)特(te)點,更適合于本(ben)工(gong)程(cheng)的實際要(yao)求。
因(yin)此,本(ben)工(gong)(gong)程(cheng)廢(fei)水(shui)(shui)(shui)處(chu)(chu)(chu)理工(gong)(gong)藝(yi)主(zhu)體工(gong)(gong)藝(yi)選擇采用生(sheng)物(wu)接(jie)觸(chu)氧化(hua)法,同時,在處(chu)(chu)(chu)理工(gong)(gong)藝(yi)中增(zeng)(zeng)加酸化(hua)水(shui)(shui)(shui)解池,使進水(shui)(shui)(shui)中的大(da)分(fen)(fen)子(zi)有(you)機物(wu)變成小分(fen)(fen)子(zi)有(you)機物(wu),提高廢(fei)水(shui)(shui)(shui)可(ke)生(sheng)化(hua)性(xing),利于好氧微(wei)生(sheng)物(wu)分(fen)(fen)解利用,并去(qu)除部(bu)分(fen)(fen)懸浮(fu)物(wu)。此外,為(wei)保(bao)證出水(shui)(shui)(shui)水(shui)(shui)(shui)質增(zeng)(zeng)加了絮凝(ning)(ning)沉淀和(he)過濾的后續(xu)處(chu)(chu)(chu)理工(gong)(gong)藝(yi)。終確定廢(fei)水(shui)(shui)(shui)處(chu)(chu)(chu)理工(gong)(gong)藝(yi)為(wei):水(shui)(shui)(shui)解酸化(hua)+二段式接(jie)觸(chu)氧化(hua)+絮凝(ning)(ning)沉淀+過濾工(gong)(gong)藝(yi)的廢(fei)水(shui)(shui)(shui)處(chu)(chu)(chu)理工(gong)(gong)藝(yi)。
a) 采用(yong)接觸(chu)氧(yang)化(hua)工(gong)藝,工(gong)藝成熟、運行穩(wen)定;工(gong)藝中增加酸化(hua)水(shui)解池,有(you)效改善水(shui)質,提高廢水(shui)可生化(hua)性,去除部分懸浮物(wu);
b) 采用(yong)新(xin)型組(zu)合(he)式填料(liao)+立(li)體彈性(xing)填料(liao),微生物固定好(hao),易掛(gua)膜;
c) 采用微(wei)(wei)生物(wu)(wu)(wu)污(wu)水處理技術,微(wei)(wei)生物(wu)(wu)(wu)活(huo)性強,污(wu)染物(wu)(wu)(wu)去(qu)除率高(gao);
d) 整(zheng)個(ge)工程采取全自(zi)動控(kong)制,實驗(yan)室廢水處理設備(bei)系(xi)統(tong)自(zi)動運(yun)行,運(yun)行可靠平穩(wen),耐(nai)沖擊(ji)負荷(he)能力強,出水污染物濃度均低于GB21905-2008 提取類制藥工業水污染物排放標(biao)準 表(biao)2中的標(biao)準限值,達標(biao)排放。
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