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吸金樹脂的順流與逆流再生方式該產(chan)品(pin)專門針對電(dian)鍍行業回收(shou)電(dian)鍍金(jin)(jin)液(ye)中(zhong)的(de)金(jin)(jin)而(er)研究開(kai)發，它(ta)主要應用(yong)于鍍金(jin)(jin)液(ye)（氰化(hua)金(jin)(jin)和(he)氰化(hua)亞金(jin)(jin)溶液(ye)）中(zhong)金(jin)(jin)的(de)回收(shou)，吸附(fu)金(jin)(jin)明(ming)顯，可以看到一(yi)層金(jin)(jin)色的(de)金(jin)(jin)附(fu)著在上面，吸附(fu)速(su)度快，吸附(fu)量(liang)大，可以達到300（質(zhi)量(liang)比）并且(qie)后處理方法簡單，回收(shou)的(de)金(jin)(jin)的(de)成色較(jiao)好。歡迎購買試用(yong)吸金(jin)樹脂的順流(liu)與逆(ni)(ni)流(liu)再(zai)生(sheng)方(fang)式(shi)離(li)子(zi)交換劑失效(xiao)后通(tong)過再(zai)生(sheng)來恢復離(li)子(zi)交換能(neng)力，常用再(zai)生(sheng)方(fang)式(shi)有順流(liu)再(zai)生(sheng)與逆(ni)(ni)流(liu)再(zai)生(sheng)。

離子交換樹脂

　　一、順流再生

　　順(shun)(shun)流(liu)(liu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)時(shi)原水與再(zai)(zai)(zai)生(sheng)(sheng)(sheng)液流(liu)(liu)過交換(huan)(huan)(huan)(huan)(huan)劑(ji)層(ceng)的(de)(de)(de)(de)方向(xiang)相(xiang)同。因此在(zai)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)液流(liu)(liu)過交換(huan)(huan)(huan)(huan)(huan)劑(ji)層(ceng)時(shi)首先接觸到的(de)(de)(de)(de)是交換(huan)(huan)(huan)(huan)(huan)劑(ji)層(ceng)上部(bu)失(shi)效的(de)(de)(de)(de)已包(bao)含上部(bu)交換(huan)(huan)(huan)(huan)(huan)劑(ji)層(ceng)被置換(huan)(huan)(huan)(huan)(huan)出來的(de)(de)(de)(de)離(li)(li)子，影響交換(huan)(huan)(huan)(huan)(huan)劑(ji)層(ceng)下部(bu)的(de)(de)(de)(de)再(zai)(zai)(zai)主度(再(zai)(zai)(zai)生(sheng)(sheng)(sheng)度指離(li)(li)子交換(huan)(huan)(huan)(huan)(huan)劑(ji)層(ceng)中已再(zai)(zai)(zai)生(sheng)(sheng)(sheng)離(li)(li)子量與全部(bu)交換(huan)(huan)(huan)(huan)(huan)容量的(de)(de)(de)(de)比值(zhi))，造成處理水質降低、再(zai)(zai)(zai)生(sheng)(sheng)(sheng)劑(ji)耗(hao)量增加。順(shun)(shun)流(liu)(liu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)離(li)(li)子交換(huan)(huan)(huan)(huan)(huan)設備簡單，工作(zuo)可靠，但受原水水質組分(fen)影響大，再(zai)(zai)(zai)生(sheng)(sheng)(sheng)效果換(huan)(huan)(huan)(huan)(huan)容量不能(neng)得(de)到充(chong)分(fen)利(li)用。而再(zai)(zai)(zai)生(sheng)(sheng)(sheng)后，下部(bu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)度低，為了提(ti)高出水質量和(he)工作(zuo)交換(huan)(huan)(huan)(huan)(huan)容量，必(bi)須增加再(zai)(zai)(zai)生(sheng)(sheng)(sheng)劑(ji)的(de)(de)(de)(de)耗(hao)量。

離子交換樹脂

　　二、逆流再生

　　原水從(cong)交換(huan)(huan)器上部進人與再(zai)生(sheng)液(ye)的方向相反，逆(ni)流再(zai)生(sheng)(也稱對流再(zai)生(sheng))過程中交換(huan)(huan)劑(ji)層的離(li)子分布(bu)狀態。

　　1、逆流再生的優點

　　與順流(liu)(liu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)比(bi)較，采用逆(ni)流(liu)(liu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)提(ti)高(gao)了(le)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)劑(ji)利用率，降(jiang)低再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)劑(ji)耗(hao)量(liang)30-50提(ti)高(gao)出水(shui)(shui)質量(liang)；降(jiang)低清(qing)洗水(shui)(shui)耗(hao)量(liang)30~50降(jiang)低再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)廢(fei)(fei)液排(pai)放量(liang)與排(pai)放濃度，排(pai)放再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)廢(fei)(fei)液中酸、堿(jian)濃度小于1，為氫(qing)離子交(jiao)換(huan)(huan)逆(ni)流(liu)(liu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)廢(fei)(fei)液流(liu)(liu)出曲線(xian)。采用逆(ni)流(liu)(liu)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)原水(shui)(shui)含鹽(yan)量(liang)500mg/L時(shi)，仍(reng)能保持(chi)出水(shui)(shui)質量(liang)；由丁(ding)辱(ru)部交(jiao)換(huan)(huan)劑(ji)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)，增"口交(jiao)換(huan)(huan)劑(ji)工作層，同時(shi)原水(shui)(shui)先接觸上部未再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)交(jiao)換(huan)(huan)劑(ji)，減少了(le)反離子效應(ying)，提(ti)高(gao)了(le)交(jiao)換(huan)(huan)劑(ji)工作交(jiao)換(huan)(huan)容量(liang)。

離子交換樹脂

　　2、逆流再(zai)生設(she)備(bei)結構特點

　　在(zai)運行(xing)中，如(ru)采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)強酸陽樹脂(zhi)(zhi)、強堿(jian)陰樹脂(zhi)(zhi)，當由H型樹脂(zhi)(zhi)轉為(wei)Na型，由。H型樹脂(zhi)(zhi)轉為(wei)Cl型時(shi)(shi)，體積收縮，交換(huan)劑(ji)層(ceng)(ceng)(ceng)孔(kong)隙率逐漸減(jian)少，實際樹脂(zhi)(zhi)失效時(shi)(shi)體積縮小(xiao)80-100mm。逆流再(zai)生(sheng)(sheng)時(shi)(shi)，再(zai)生(sheng)(sheng)液從底部(bu)(bu)進人(ren)，需(xu)要保持交換(huan)劑(ji)層(ceng)(ceng)(ceng)穩定，壓(ya)(ya)(ya)(ya)實狀態，因(yin)此需(xu)要增加(jia)壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)與(yu)頂壓(ya)(ya)(ya)(ya)措(cuo)(cuo)施(shi)。壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)的(de)(de)作用(yong)(yong)(yong)(yong)(yong)能(neng)截留懸浮雜質(zhi)，使(shi)頂壓(ya)(ya)(ya)(ya)的(de)(de)空氣或(huo)(huo)水(shui)通過壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)能(neng)均勻分布于整個床層(ceng)(ceng)(ceng)，保持床層(ceng)(ceng)(ceng)在(zai)逆流再(zai)生(sheng)(sheng)時(shi)(shi)床層(ceng)(ceng)(ceng)不上升或(huo)(huo)流動。頂壓(ya)(ya)(ya)(ya)措(cuo)(cuo)施(shi)有氣頂壓(ya)(ya)(ya)(ya)(在(zai)底部(bu)(bu)進再(zai)生(sheng)(sheng)液，同時(shi)(shi)在(zai)上部(bu)(bu)進凈化壓(ya)(ya)(ya)(ya)縮空氣)、水(shui)頂壓(ya)(ya)(ya)(ya)(在(zai)底部(bu)(bu)進再(zai)生(sheng)(sheng)液，同時(shi)(shi)在(zai)上部(bu)(bu)小(xiao)流量進水(shui))及無(wu)頂壓(ya)(ya)(ya)(ya)(再(zai)生(sheng)(sheng)液在(zai)底部(bu)(bu)低速(su)進人(ren))三種方(fang)式。壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)高(gao)度(du)一(yi)般在(zai)中間排液管(guan)上面150~200mm。采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)可以防止交換(huan)劑(ji)層(ceng)(ceng)(ceng)上升或(huo)(huo)流動并截留進水(shui)中雜質(zhi)。壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)材(cai)料曾經采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)過白球等(deng)，當前(qian)都采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)與(yu)其相同的(de)(de)離(li)子(zi)交換(huan)樹脂(zhi)(zhi)。無(wu)頂壓(ya)(ya)(ya)(ya)(再(zai)生(sheng)(sheng)液低速(su)進人(ren))操作簡(jian)單(dan)已廣泛應用(yong)(yong)(yong)(yong)(yong)，采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)無(wu)頂壓(ya)(ya)(ya)(ya)逆流再(zai)生(sheng)(sheng)壓(ya)(ya)(ya)(ya)實層(ceng)(ceng)(ceng)可適當提高(gao)，目前(qian)一(yi)般采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)200mm。

　　3、逆流再生的應(ying)用

　　在強弱(ruo)型樹脂(zhi)聯合(he)應用系(xi)統中，強型樹脂(zhi)的再(zai)(zai)生(sheng)可采(cai)用順(shun)Ilk再(zai)(zai)生(sheng)或逆(ni)流再(zai)(zai)生(sheng)，弱(ruo)型樹脂(zhi)一般采(cai)用順(shun)流再(zai)(zai)生(sheng)，因(yin)弱(ruo)型樹脂(zhi)極易再(zai)(zai)生(sheng)，再(zai)(zai)生(sheng)水平對弱(ruo)型樹脂(zhi)工作交換容量的影響不(bu)大(da)。