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生物濾池除臭工藝流程(cheng):臭氣(qi)通過(guo)臭氣(qi)收(shou)集系統中(zhong)排出,在離心風機的(de)作(zuo)用下導入(ru)除臭裝置(zhi),首先進(jin)行(xing)增(zeng)(zeng)濕(shi)預處理,經過(guo)溫(wen)度調(diao)節、除塵(chen)及增(zeng)(zeng)濕(shi)后,進(jin)入(ru)生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)濾池,廢氣(qi)中(zhong)的(de)污染物(wu)(wu)通過(guo)濕(shi)潤(run)、多孔和充滿活(huo)性(xing)微生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)的(de)填料層接觸,被微生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)捕獲降解(jie)、氧(yang)化,使污染物(wu)(wu)分解(jie)為(wei)無(wu)害的(de)CO2和H2O以(yi)及硫(liu)酸、硝酸等(deng)無(wu)機物(wu)(wu),硫(liu)酸、硝酸等(deng)進(jin)一(yi)步被硫(liu)桿菌(jun)(jun)、硝酸菌(jun)(jun)分解(jie)、氧(yang)化成無(wu)害物(wu)(wu)質(zhi)。在廢氣(qi)濃度很低時,營養液(ye)循環箱中(zhong)的(de)營養液(ye)由循環泵送到(dao)生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)填料床頂部,均(jun)勻(yun)的(de)噴淋在生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)填料上(shang),在微生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)吸取(qu)營養液(ye)物(wu)(wu)質(zhi),生(sheng)(sheng)(sheng)(sheng)長(chang)繁殖。
生(sheng)物除臭過(guo)程分為(wei)三步進(jin)行:(1)臭氣同水接觸并溶解到水中(zhong);(2)水溶液中(zhong)的惡臭成分被微(wei)生(sheng)物吸(xi)附、吸(xi)收(shou),惡臭成分從(cong)水中(zhong)移至微(wei)生(sheng)物內;(3)進(jin)入(ru)微(wei)生(sheng)物細胞(bao)的惡臭成分作為(wei)營養物質為(wei)微(wei)生(sheng)物所分解、利用,從(cong)而使污染物得以去除。
生物濾池除臭工藝采用(yong)了液體(ti)吸(xi)收(shou)(shou)和生(sheng)(sheng)物(wu)(wu)(wu)處理的(de)(de)組合作(zuo)(zuo)用(yong)。臭(chou)(chou)氣首先被(bei)液體(ti)(吸(xi)收(shou)(shou)劑)有選擇地吸(xi)收(shou)(shou)形成(cheng)混合污水(shui),再(zai)通(tong)過(guo)微(wei)生(sheng)(sheng)物(wu)(wu)(wu)的(de)(de)作(zuo)(zuo)用(yong)將其中(zhong)(zhong)的(de)(de)污染物(wu)(wu)(wu)降(jiang)解(jie)(jie)。具體(ti)過(guo)程是(shi):先將人(ren)工篩(shai)選的(de)(de)特(te)種微(wei)生(sheng)(sheng)物(wu)(wu)(wu)菌群固定于(yu)填(tian)料(liao)上,當污染氣體(ti)經過(guo)填(tian)料(liao)表(biao)面(mian)初(chu)期,可從污染氣體(ti)中(zhong)(zhong)獲得(de)營養源的(de)(de)那些微(wei)生(sheng)(sheng)物(wu)(wu)(wu)菌群,在適(shi)宜的(de)(de)溫度、濕度、pH值等條件下,將會得(de)到快(kuai)速生(sheng)(sheng)長、繁(fan)殖,并(bing)在填(tian)料(liao)表(biao)面(mian)形成(cheng)生(sheng)(sheng)物(wu)(wu)(wu)膜,當臭(chou)(chou)氣通(tong)過(guo)其間(jian),有機物(wu)(wu)(wu)被(bei)生(sheng)(sheng)物(wu)(wu)(wu)膜表(biao)面(mian)的(de)(de)水(shui)層吸(xi)收(shou)(shou)后被(bei)微(wei)生(sheng)(sheng)物(wu)(wu)(wu)吸(xi)附和降(jiang)解(jie)(jie),得(de)到凈化再(zai)生(sheng)(sheng)的(de)(de)水(shui)被(bei)重復使(shi)用(yong)。污染物(wu)(wu)(wu)去除的(de)(de)實(shi)質是(shi)以臭(chou)(chou)氣作(zuo)(zuo)為(wei)營養物(wu)(wu)(wu)質被(bei)微(wei)生(sheng)(sheng)物(wu)(wu)(wu)吸(xi)收(shou)(shou)、代謝及(ji)利用(yong)。這一過(guo)程是(shi)微(wei)生(sheng)(sheng)物(wu)(wu)(wu)的(de)(de)相互協調的(de)(de)過(guo)程,比較復雜,它由(you)物(wu)(wu)(wu)理、化學(xue)、物(wu)(wu)(wu)理化學(xue)以及(ji)生(sheng)(sheng)物(wu)(wu)(wu)化學(xue)反應所組成(cheng)。
處(chu)理原理:污染物 + O2→細胞代謝(xie)物 + CO2 + H2O
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