重慶恒諾水處理設備有限公司從事水處理事業十一年,已成為純水、超純水設備,實驗室超純水設備,工業電子級超純水設備,實驗室綜合廢水系統,礦用超純水處理設備的(de)(de)專業生產廠家,以客戶需求為中心,致力于為客戶創造價值(zhi),提供(gong)最優質(zhi)最實(shi)惠的(de)(de)水處理解決(jue)方案,天分享:
水處(chu)理中(zhong)電化學(xue)中(zhong)的電解池
電(dian)(dian)解(jie)是將電(dian)(dian)化(hua)學(xue)法(fa)用于(yu)水處(chu)理工藝的最重要過(guo)(guo)程。通(tong)過(guo)(guo)電(dian)(dian)解(jie)反(fan)(fan)應(ying),可(ke)(ke)以(yi)將水中的有機(ji)和(he)無機(ji)污(wu)染(ran)物(wu)通(tong)過(guo)(guo)電(dian)(dian)化(hua)學(xue)氧化(hua)還原(yuan)反(fan)(fan)應(ying)進行降解(jie)、凝聚等作用而(er)去(qu)除(chu)。水中的某些機(ji)污(wu)染(ran)物(wu),可(ke)(ke)以(yi)通(tong)過(guo)(guo)電(dian)(dian)解(jie)氧化(hua)反(fan)(fan)應(ying)部分或徹底降解(jie);而(er)對于(yu)具有不(bu)飽和(he)官能團的生色(se)有機(ji)物(wu),也(ye)可(ke)(ke)以(yi)通(tong)過(guo)(guo)陰(yin)極的電(dian)(dian)還原(yuan)進行降解(jie)脫色(se)。一般按(an)照(zhao)電(dian)(dian)解(jie)的原(yuan)理,可(ke)(ke)將其分為直(zhi)接電(dian)(dian)解(jie)和(he)間(jian)接電(dian)(dian)解(jie)。
(1)直接電解
直(zhi)接(jie)電(dian)(dian)解(jie)是(shi)指污(wu)(wu)染(ran)物(wu)在(zai)電(dian)(dian)極(ji)上直(zhi)接(jie)被(bei)氧(yang)化或還(huan)原而(er)(er)從(cong)廢水中去除(chu)的過(guo)程(cheng)。直(zhi)接(jie)電(dian)(dian)解(jie)可分為(wei)陽(yang)極(ji)過(guo)程(cheng)和(he)陰(yin)極(ji)過(guo)程(cheng)。陽(yang)極(ji)過(guo)程(cheng)就(jiu)是(shi)污(wu)(wu)染(ran)物(wu)在(zai)陽(yang)極(ji)表(biao)面(mian)氧(yang)化而(er)(er)轉化成毒性(xing)較(jiao)小的物(wu)質(zhi)或易生(sheng)(sheng)物(wu)降解(jie)的物(wu)質(zhi),甚(shen)至(zhi)發生(sheng)(sheng)有機(ji)物(wu)無機(ji)化,從(cong)而(er)(er)達到(dao)削減(jian)、去除(chu)污(wu)(wu)染(ran)物(wu)的目的。陰(yin)極(ji)過(guo)程(cheng)就(jiu)是(shi)污(wu)(wu)染(ran)物(wu)在(zai)陰(yin)極(ji)表(biao)面(mian)還(huan)原而(er)(er)得以去除(chu),主要用于鹵代烴的還(huan)原脫鹵和(he)重金(jin)層回收(shou)。
(2)間接(jie)電解
所(suo)謂間(jian)(jian)(jian)接電(dian)解,就是將產生(sheng)(sheng)于電(dian)化(hua)(hua)(hua)學(xue)(xue)反(fan)應(ying)過(guo)(guo)(guo)程(cheng)中(zhong)的(de)(de)氧(yang)(yang)(yang)化(hua)(hua)(hua)還(huan)(huan)原物(wu)質作為反(fan)應(ying)劑(ji)或(huo)者化(hua)(hua)(hua)劑(ji),促進污(wu)染物(wu)逐漸轉化(hua)(hua)(hua)為毒性較小的(de)(de)物(wu)質。間(jian)(jian)(jian)接電(dian)解分為可(ke)逆(ni)過(guo)(guo)(guo)程(cheng)和(he)不可(ke)逆(ni)過(guo)(guo)(guo)程(cheng)。可(ke)逆(ni)過(guo)(guo)(guo)程(cheng)(媒(mei)介電(dian)化(hua)(hua)(hua)學(xue)(xue)氧(yang)(yang)(yang)化(hua)(hua)(hua))是指(zhi)(zhi)氧(yang)(yang)(yang)化(hua)(hua)(hua)還(huan)(huan)原物(wu)在電(dian)解過(guo)(guo)(guo)程(cheng)中(zhong)可(ke)能發生(sheng)(sheng)電(dian)化(hua)(hua)(hua)學(xue)(xue)再生(sheng)(sheng)和(he)循(xun)環使(shi)用。不可(ke)逆(ni)過(guo)(guo)(guo)程(cheng)是指(zhi)(zhi)利用不可(ke)逆(ni)電(dian)化(hua)(hua)(hua)學(xue)(xue)反(fan)應(ying)產生(sheng)(sheng)的(de)(de)物(wu)質,如具有強氧(yang)(yang)(yang)化(hua)(hua)(hua)性的(de)(de)氯酸(suan)(suan)鹽(yan)、次氯酸(suan)(suan)鹽(yan)、H2O?和(he) O;等氧(yang)(yang)(yang)化(hua)(hua)(hua)有機物(wu)的(de)(de)過(guo)(guo)(guo)程(cheng),還(huan)(huan)可(ke)以利用電(dian)化(hua)(hua)(hua)學(xue)(xue)反(fan)應(ying)產生(sheng)(sheng)的(de)(de)短壽命、強氧(yang)(yang)(yang)化(hua)(hua)(hua)性的(de)(de)中(zhong)間(jian)(jian)(jian)體,包括溶(rong)劑(ji)化(hua)(hua)(hua)電(dian)子、·OH、·HO?等自由基,它們可(ke)以氧(yang)(yang)(yang)化(hua)(hua)(hua)降(jiang)解污(wu)染物(wu)。
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