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生物洗滌塔設計
基本介紹(shao)
其(qi)(qi)基本特征是在廢(fei)(fei)氣(qi)處理構筑物(wu)(wu)(wu)(wu)(wu)內設置微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)生(sheng)(sheng)(sheng)長(chang)聚(ju)集的(de)載體,在充氧(yang)的(de)條件下,微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)在填料(liao)表(biao)面積聚(ju)附著形(xing)成生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜。當(dang)廢(fei)(fei)氣(qi)經過時(shi),生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜中的(de)微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)吸(xi)收分解廢(fei)(fei)氣(qi)中的(de)有機物(wu)(wu)(wu)(wu)(wu),使廢(fei)(fei)氣(qi)得到凈化,同時(shi)微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)也得到增殖,生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜隨(sui)之增厚。當(dang)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜增長(chang)到一(yi)定厚度,向生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜內部擴散(san)的(de)氧(yang)受(shou)到限制,其(qi)(qi)表(biao)面仍是好氧(yang)狀態,而內層(ceng)則(ze)會呈缺(que)氧(yang)甚至(zhi)厭氧(yang)狀態,并zui終導致生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜的(de)脫落。隨(sui)后(hou),填料(liao)表(biao)面還會繼(ji)續生(sheng)(sheng)(sheng)長(chang)新(xin)的(de)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜,周(zhou)而復始(shi),使廢(fei)(fei)氣(qi)得到凈化。
生物洗滌塔(ta)設(she)計
工作(zuo)原理
在(zai)生(sheng)(sheng)物(wu)塔(ta)反(fan)應器內設(she)置填(tian)料(liao),廢氣經過充氧(或在(zai)生(sheng)(sheng)物(wu)塔(ta)底(di)部鼓風曝氣)后與填(tian)料(liao)相接觸(chu),在(zai)填(tian)料(liao)表面生(sheng)(sheng)物(wu)膜和填(tian)料(liao)空隙間的(de)活(huo)性(xing)(xing)污泥(ni)(ni)雙重作(zuo)用下,使(shi)廢氣得(de)到(dao)凈化。生(sheng)(sheng)物(wu)塔(ta)內裝有(you)填(tian)料(liao),大部分(fen)微生(sheng)(sheng)物(wu)以生(sheng)(sheng)物(wu)膜的(de)形式(shi)固著生(sheng)(sheng)長于填(tian)料(liao)表面,少部分(fen)則以活(huo)性(xing)(xing)污泥(ni)(ni)的(de)形式(shi)懸浮生(sheng)(sheng)長于水中。因此,生(sheng)(sheng)物(wu)塔(ta)兼有(you)活(huo)性(xing)(xing)污泥(ni)(ni)法與生(sheng)(sheng)物(wu)過濾特(te)性(xing)(xing),是一種(zhong)以生(sheng)(sheng)物(wu)膜法作(zuo)用為主(zhu)、兼有(you)活(huo)性(xing)(xing)污泥(ni)(ni)法作(zuo)用的(de)生(sheng)(sheng)物(wu)處(chu)理工(gong)藝(yi)。
結構構造
生物(wu)塔(ta)的(de)塔(ta)體為方型臥式,無分段連接(jie)法蘭。具體結構(gou)由(you)塔(ta)體、布水系統、曝氣裝置、生物(wu)載體區(qu)、出水溢流堰等組成(cheng)。
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