吸金樹脂的順流與逆流再生方式-天津市津達(dá)正通環(huán)?？萍加邢薰?/title> <link href="/skins/387392/css/css.css" rel="stylesheet" type="text/css"> <script type="text/javascript" src="/skins/387392/js/jquery.pack.js"></script> <script type="text/javascript" src="/skins/387392/js/jquery.SuperSlide.js"></script> <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http:///Article-3201416.html", "title": "吸金樹脂的順流與逆流再生方式", "pubDate": "2022-11-21T09:57:22", "upDate": "2022-11-21T09:57:22" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('https://chat.chem17.com',390069) }</script><script>!window.jQuery && document.write('<script src="https://public.mtnets.com/Plugins/jQuery/2.2.4/jquery-2.2.4.min.js">'+'</scr'+'ipt>');</script><script type="text/javascript" src="https://chat.chem17.com/chat/KFCenterBox/387392"></script><script type="text/javascript" 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</li> </ul> </div> </div> <div id="6waae6k" class="nymiddlezty"> <div id="6waae6k" class="mianbao">您現(xiàn)在的位置：<a href="/">首頁</a> >> <a href="/article.html">技術(shù)文章</a> >> 吸金樹脂的順流與逆流再生方式</div> <div id="6waae6k" class="about_con"> <div id="6waae6k" class="newstit">吸金樹脂的順流與逆流再生方式</div> <div id="6waae6k" class="newstime"> <span id="6waae6k" class="skim"><em>瀏覽次數(shù)：</em>604</span><span id="6waae6k" class="skimtim"><em>發(fā)布日期：</em>2022-11-21 </span> </div> <p>吸金樹脂的順流與逆流再生方式<span style="font-family:宋體">該產(chǎn)品專門針對(duì)電鍍行業(yè)回收電鍍金液中的金而研究開發(fā)，它主要應(yīng)用于鍍金液（氰化金和氰化亞金溶液）中金的回收，吸附金明顯，可以看到一層金色的金附著在上面，吸附速度快，吸附量大，可以達(dá)到300（質(zhì)量比）并且后處理方法簡單，回收的金的成色較好。歡迎購買試用</span>吸金樹脂的順流與逆流再生方式離子交換劑失效后通過再生來恢復(fù)離子交換能力，常用再生方式有順流再生與逆流再生。</p><p><br/></p><p></p><p>離子交換樹脂</p><p><span><strong><span>　　</span>一、順流再生</strong></span></p><p>　　順流再生時(shí)原水與再生液流過交換劑層的方向相同。因此在再生液流過交換劑層時(shí)首先接觸到的是交換劑層上部失效的已包含上部交換劑層被置換出來的離子，影響交換劑層下部的再主度(再生度指離子交換劑層中已再生離子量與全部交換容量的比值)，造成處理水質(zhì)降低、再生劑耗量增加。順流再生離子交換設(shè)備簡單，工作可靠，但受原水水質(zhì)組分影響大，再生效果換容量不能得到充分利用。而再生后，下部再生度低，為了提高出水質(zhì)量和工作交換容量，必須增加再生劑的耗量。</p><p></p><p>離子交換樹脂</p><p><span><strong><span>　　</span>二、逆流再生</strong></span></p><p>　　原水從交換器上部進(jìn)人與再生液的方向相反，逆流再生(也稱對(duì)流再生)過程中交換劑層的離子分布狀態(tài)。</p><p>　　1、逆流再生的優(yōu)點(diǎn)</p><p>　　與順流再生比較，采用逆流再生提高了再生劑利用率，降低再生劑耗量30-50提高出水質(zhì)量；降低清洗水耗量30~50降低再生廢液排放量與排放濃度，排放再生廢液中酸、堿濃度小于1，為氫離子交換逆流再生廢液流出曲線。采用逆流再生原水含鹽量500mg/L時(shí)，仍能保持出水質(zhì)量；由丁辱部交換劑再生，增"口交換劑工作層，同時(shí)原水先接觸上部未再生交換劑，減少了反離子效應(yīng)，提高了交換劑工作交換容量。</p><p></p><p>離子交換樹脂</p><p>　　2、逆流再生設(shè)備結(jié)構(gòu)特點(diǎn)</p><p>　　在運(yùn)行中，如采用強(qiáng)酸陽樹脂、強(qiáng)堿陰樹脂，當(dāng)由H型樹脂轉(zhuǎn)為Na型，由。H型樹脂轉(zhuǎn)為Cl型時(shí)，體積收縮，交換劑層孔隙率逐漸減少，實(shí)際樹脂失效時(shí)體積縮小80-100mm。逆流再生時(shí)，再生液從底部進(jìn)人，需要保持交換劑層穩(wěn)定，壓實(shí)狀態(tài)，因此需要增加壓實(shí)層與頂壓措施。壓實(shí)層的作用能截留懸浮雜質(zhì)，使頂壓的空氣或水通過壓實(shí)層能均勻分布于整個(gè)床層，保持床層在逆流再生時(shí)床層不上升或流動(dòng)。頂壓措施有氣頂壓(在底部進(jìn)再生液，同時(shí)在上部進(jìn)凈化壓縮空氣)、水頂壓(在底部進(jìn)再生液，同時(shí)在上部小流量進(jìn)水)及無頂壓(再生液在底部低速進(jìn)人)三種方式。壓實(shí)層高度一般在中間排液管上面150~200mm。采用壓實(shí)層可以防止交換劑層上升或流動(dòng)并截留進(jìn)水中雜質(zhì)。壓實(shí)層材料曾經(jīng)采用過白球等，當(dāng)前都采用與其相同的離子交換樹脂。無頂壓(再生液低速進(jìn)人)操作簡單已廣泛應(yīng)用，采用無頂壓逆流再生壓實(shí)層可適當(dāng)提高，目前一般采用200mm。</p><p>　　3、逆流再生的應(yīng)用</p><p>　　在強(qiáng)弱型樹脂聯(lián)合應(yīng)用系統(tǒng)中，強(qiáng)型樹脂的再生可采用順I(yè)lk再生或逆流再生，弱型樹脂一般采用順流再生，因弱型樹脂極易再生，再生水平對(duì)弱型樹脂工作交換容量的影響不大。</p> 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