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目(mu)前(qian),生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)除(chu)臭(chou)(chou)(chou)的(de)(de)(de)主要(yao)技術方(fang)法有生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)過濾、生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)洗滌和生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)滴濾。生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)過濾法是(shi)將臭(chou)(chou)(chou)氣適當(dang)加(jia)濕(shi),然后通過附著有微(wei)生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)的(de)(de)(de)過濾容器,利用附著在濾料(liao)(liao)上的(de)(de)(de)微(wei)生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)降解臭(chou)(chou)(chou)氣。經過生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)除(chu)臭(chou)(chou)(chou)濾池后,臭(chou)(chou)(chou)氣成(cheng)分被(bei)填(tian)料(liao)(liao)捕獲(huo),并(bing)被(bei)生(sheng)(sheng)(sheng)(sheng)長在填(tian)料(liao)(liao)上的(de)(de)(de)微(wei)生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)分解為食物(wu)(wu)(wu)(wu)(wu),終變成(cheng)二氧化碳(tan)、水、硫酸、硝酸等穩定的(de)(de)(de)無機物(wu)(wu)(wu)(wu)(wu)。除(chu)二氧化碳(tan)外,其(qi)他代謝產物(wu)(wu)(wu)(wu)(wu)排入液相,隨噴淋水排出除(chu)臭(chou)(chou)(chou)系統。
污廢水站生物化學除臭
污廢水站生物化學除臭—生物濾池法
生(sheng)物(wu)(wu)(wu)濾(lv)池(chi)去除惡(e)(e)臭(chou)氣體是一個氣體擴散和生(sheng)化反應(ying)的綜合過程,惡(e)(e)臭(chou)氣體通(tong)過濕(shi)潤、多孔和充滿活性微生(sheng)物(wu)(wu)(wu)的濾(lv)層,利用微生(sheng)物(wu)(wu)(wu)細胞對惡(e)(e)臭(chou)物(wu)(wu)(wu)質的吸(xi)附、吸(xi)收和降解功能,微生(sheng)物(wu)(wu)(wu)的細胞個體小、表(biao)面積(ji)大、吸(xi)附性強(qiang)、代謝類(lei)型(xing)多樣的特點(dian),將(jiang)惡(e)(e)臭(chou)物(wu)(wu)(wu)質吸(xi)附后(hou)分解成CO2、H2O、H2SO4、HNO3等簡(jian)單無機物(wu)(wu)(wu)。生(sheng)物(wu)(wu)(wu)濾(lv)池(chi)法除臭(chou)效率高,適合大氣量(liang)低濃(nong)度的廢氣處(chu)理(li),也是常(chang)用的生物脫臭方法。
在德國,生物(wu)濾池(chi)用于(yu)含四(si)氫呋喃、環己(ji)酮(tong)、丁酮(tong)廢氣的處理,但目前生物(wu)濾池(chi)法由于(yu)占(zhan)地面積(ji)大,填料需定期更換,脫臭過程不易(yi)控(kong)制(zhi),運行一段時間后容(rong)易(yi)出現問題,對(dui)疏水性和難生物(wu)降(jiang)解物(wu)質的處理還存在較大難度。