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垃圾填埋場生物除臭
過程分為三個步驟:
(1) 臭氣同水(shui)接觸(chu)并(bing)溶(rong)解到(dao)水(shui)中,臭氣中的有機物質(zhi)由(you)氣相轉移(yi)到(dao)液相(或固體(ti)表(biao)面液膜)中;
(2)溶(rong)于(yu)水(shui)中的(de)臭(chou)氣(qi)通(tong)過微(wei)生(sheng)物(wu)(wu)(wu)的(de)細(xi)(xi)胞(bao)壁和細(xi)(xi)胞(bao)膜被微(wei)生(sheng)物(wu)(wu)(wu)吸收(shou),不(bu)溶(rong)于(yu)水(shui)的(de)臭(chou)氣(qi)先附(fu)著在(zai)微(wei)生(sheng)物(wu)(wu)(wu)體(ti)外,由微(wei)生(sheng)物(wu)(wu)(wu)分泌的(de)細(xi)(xi)胞(bao)外酶分解為可溶(rong)性物(wu)(wu)(wu)質,再滲入細(xi)(xi)胞(bao)。在(zai)液相(或固體(ti)表面生(sheng)物(wu)(wu)(wu)層)中的(de)臭(chou)氣(qi)成(cheng)分被微(wei)生(sheng)物(wu)(wu)(wu)吸附(fu)、吸收(shou),惡臭(chou)成(cheng)分從(cong)水(shui)中轉移(yi)至微(wei)生(sheng)物(wu)(wu)(wu)內;
(3)進入微生(sheng)物(wu)(wu)(wu)細(xi)胞的惡臭成分作(zuo)為營養(yang)物(wu)(wu)(wu)質被微生(sheng)物(wu)(wu)(wu)所氧化分解和(he)同化合成,產生(sheng)的代謝產物(wu)(wu)(wu)一部(bu)分溶(rong)入液相,一部(bu)分作(zuo)為細(xi)胞物(wu)(wu)(wu)質或細(xi)胞代謝能(neng)源,還有一部(bu)分則析出到空氣(qi)中。臭氣(qi)通過上述(shu)過程不斷減少,從(cong)而使污染(ran)物(wu)(wu)(wu)得以去除,得到凈化。
垃圾填埋場生物除臭