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圖木舒克活性炭吸附系統
圖木舒克活性炭吸附系統

圖木舒克活性炭吸附系統

  • 所屬分類:圖木舒克有機(ji)廢氣(qi)系統(tong)
  • 發布日期:2019-05-07
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活(huo)性(xing)(xing)炭(tan)(tan),是黑色粉末狀或塊(kuai)狀、顆粒狀、蜂窩(wo)狀的無定形碳,也有(you)排列(lie)規(gui)整的晶體碳。活(huo)性(xing)(xing)炭(tan)(tan)中(zhong)(zhong)(zhong)除碳元(yuan)素外,還包含兩類摻和(he)物(wu):一類是化(hua)(hua)學結(jie)合的元(yuan)素,主要是氧和(he)氫,這些元(yuan)素是由(you)于(yu)(yu)未完全炭(tan)(tan)化(hua)(hua)而殘留(liu)在(zai)炭(tan)(tan)中(zhong)(zhong)(zhong),或者(zhe)在(zai)活(huo)化(hua)(hua)過程中(zhong)(zhong)(zhong),外來的非碳元(yuan)素與活(huo)性(xing)(xing)炭(tan)(tan)表面化(hua)(hua)學結(jie)合;另(ling)一類摻和(he)物(wu)是灰分(fen),它是活(huo)性(xing)(xing)炭(tan)(tan)的無機部分(fen),灰分(fen)在(zai)活(huo)性(xing)(xing)碳中(zhong)(zhong)(zhong)易(yi)造成二次污(wu)染。活(huo)性(xing)(xing)炭(tan)(tan)由(you)于(yu)(yu)具有(you)較(jiao)強的吸附性(xing)(xing),廣泛應(ying)用于(yu)(yu)生(sheng)產、生(sheng)活(huo)中(zhong)(zhong)(zhong)。

活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)材(cai)料是(shi)經過(guo)加(jia)工處理所得的無定(ding)(ding)形碳,具(ju)有(you)很(hen)大(da)的比表(biao)面(mian)積,對氣體、溶(rong)液中的無機(ji)(ji)(ji)或有(you)機(ji)(ji)(ji)物(wu)質及膠體顆粒等都有(you)良(liang)好的吸(xi)附能(neng)力。活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)材(cai)料主(zhu)要(yao)包(bao)括活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(Activated Carbon , A C )和活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)纖維(Activated Carbon Fibers, ACF )等。活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)材(cai)料作為一(yi)種性(xing)(xing)(xing)(xing)能(neng)優良(liang)的吸(xi)附劑,主(zhu)要(yao)是(shi)由于(yu)其(qi)具(ju)有(you)獨(du)特的吸(xi)附表(biao)面(mian)結(jie)構(gou)特性(xing)(xing)(xing)(xing)和表(biao)面(mian)化學(xue)性(xing)(xing)(xing)(xing)能(neng)所決(jue)定(ding)(ding)的。活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)材(cai)料的化學(xue)性(xing)(xing)(xing)(xing)質穩定(ding)(ding),機(ji)(ji)(ji)械強(qiang)度(du)高,耐酸、耐堿、耐熱,不溶(rong)于(yu)水與有(you)機(ji)(ji)(ji)溶(rong)劑,可以(yi)再(zai)生(sheng)使用,已經廣泛地應用于(yu)化工、環保、食品(pin)加(jia)工、冶金、藥(yao)物(wu)精制、軍(jun)事化學(xue)防(fang)護等各個(ge)領域 。目前,改性(xing)(xing)(xing)(xing)活(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)材(cai)料被廣泛用于(yu)污水處理、大(da)氣污染防(fang)治等領域,在治理環境污染方面(mian)越(yue)來越(yue)顯示出其(qi)誘人的美(mei)好前景。

活(huo)性(xing)(xing)炭(tan)80%-90%以(yi)上由碳(tan)元(yuan)(yuan)素(su)組成,這也是(shi)(shi)活(huo)性(xing)(xing)炭(tan)為疏水性(xing)(xing)吸附(fu)劑的原因。除了碳(tan)元(yuan)(yuan)素(su)外,還包含有兩類摻(chan)(chan)和物(wu):一類是(shi)(shi)化(hua)(hua)學結合的元(yuan)(yuan)素(su),主要(yao)是(shi)(shi)氧(yang)和氫(qing),這些元(yuan)(yuan)素(su)是(shi)(shi)由于未完全炭(tan)化(hua)(hua)而殘留(liu)在炭(tan)中(zhong)(zhong),或(huo)者在活(huo)化(hua)(hua)過程(cheng)中(zhong)(zhong),外來的非(fei)碳(tan)元(yuan)(yuan)素(su)與活(huo)性(xing)(xing)炭(tan)表面(mian)化(hua)(hua)學結合,如用水蒸氣(qi)活(huo)化(hua)(hua)時(shi),活(huo)性(xing)(xing)炭(tan)表面(mian)被氧(yang)化(hua)(hua)或(huo)水蒸氣(qi)氧(yang)化(hua)(hua);另一類摻(chan)(chan)和物(wu)是(shi)(shi)灰分,它是(shi)(shi)活(huo)性(xing)(xing)炭(tan)的無機部(bu)分。

活(huo)(huo)(huo)(huo)(huo)性(xing)炭(tan)的(de)主要原料(liao)(liao)幾(ji)乎可以是(shi)所(suo)有(you)(you)富含(han)碳的(de)有(you)(you)機(ji)(ji)材(cai)(cai)料(liao)(liao),如(ru)煤、木材(cai)(cai)、果殼(ke)(ke)、椰殼(ke)(ke)、核桃殼(ke)(ke)、杏殼(ke)(ke)、棗殼(ke)(ke)等。這(zhe)些(xie)含(han)碳材(cai)(cai)料(liao)(liao)在活(huo)(huo)(huo)(huo)(huo)化(hua)(hua)爐(lu)中(zhong)(zhong),在高溫和一定壓(ya)力下通過熱解作(zuo)用(yong)被轉換成活(huo)(huo)(huo)(huo)(huo)性(xing)炭(tan)。在此活(huo)(huo)(huo)(huo)(huo)化(hua)(hua)過程(cheng)(cheng)中(zhong)(zhong),巨大(da)(da)的(de)表面積和復雜的(de)孔隙(xi)結構逐(zhu)漸(jian)形成, 而所(suo)謂的(de)吸(xi)附(fu)(fu)(fu)過程(cheng)(cheng)正是(shi)在這(zhe)些(xie)孔隙(xi)中(zhong)(zhong)和表面上進行的(de),活(huo)(huo)(huo)(huo)(huo)性(xing)炭(tan)中(zhong)(zhong)孔隙(xi)的(de)大(da)(da)小對吸(xi)附(fu)(fu)(fu)質有(you)(you)選擇吸(xi)附(fu)(fu)(fu)的(de)作(zuo)用(yong),這(zhe)是(shi)由于大(da)(da)分子不能進入比(bi)它孔隙(xi)小的(de)活(huo)(huo)(huo)(huo)(huo)性(xing)炭(tan)孔徑內的(de)緣(yuan)故。活(huo)(huo)(huo)(huo)(huo)性(xing)炭(tan)是(shi)由含(han)炭(tan)為主的(de)物質作(zuo)原料(liao)(liao),經高溫炭(tan)化(hua)(hua)和活(huo)(huo)(huo)(huo)(huo)化(hua)(hua)制得的(de)疏水性(xing)吸(xi)附(fu)(fu)(fu)劑。活(huo)(huo)(huo)(huo)(huo)性(xing)炭(tan)含(han)有(you)(you)大(da)(da)量微(wei)孔,具有(you)(you)巨大(da)(da)無比(bi)的(de)表面積,能有(you)(you)效(xiao)地去除色(se)度(du)、臭味,可去除二級(ji)出水中(zhong)(zhong)大(da)(da)多數有(you)(you)機(ji)(ji)污染物和某些(xie)無機(ji)(ji)物,包含(han)某些(xie)有(you)(you)毒的(de)重金屬。


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