污水脫氨處理工藝的氣態膜脫氨技術是什么？-江蘇易簡環?？萍加邢薰?/title> <link rel="stylesheet" type="text/css" href="/skins/639517/css/style.css"> <link rel="stylesheet" type="text/css" href="/skins/639517/css/swiper-bundle.min.css"> <script type="text/javascript" src="/skins/639517/js/jquery.min.js"></script> <script type="text/javascript"> document.addEventListener("touchstart", function () { }, true); </script> <script language="javascript" type="text/javascript"> var nav= '5'; </script> <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http://www.www-42444.com/Article-1152525.html", "title": "污水脫氨處理工藝的氣態膜脫氨技術是什么？", "pubDate": "2023-04-18T17:30:32", "upDate": "2023-04-18T17:35:15" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('http://chat.hbzhan.com',650515) }</script><script>!window.jQuery && document.write('<script 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class="NyNewsdetail_title">污水脫氨處理工藝的氣態膜脫氨技術是什么？</h1> <div id="fjdpbhp" class="NyNewsdetail_tips">更新時間：2023-04-18 點擊次數：3196</div> <div id="ffhhtrh" class="NyNewsdetail_con"> <div>　　中空纖維膜脫氨技術是一種將物理或化學吸附與膜分離相結合的新型高效脫氨技術。首先，向氨氮廢水中加入一定量的堿液以調節pH值。氨氮在水中存在解離平衡(nh4++oh-)? 氨氣↑ +h2o)。隨著pH值的增加，氨在水中分解。當pH值高于11時，廢水中98%的氨分解為游離NH3。脫氨氮廢水和稀硫酸吸收溶液在調節pH值后分別進入膜接觸器的管側和殼側。由于廢水中的氨已分解成NH3，NH3將從氣液界面逐漸揮發，擴散通過疏水多孔膜的膜孔，并進入稀硫酸進行吸收。<br /> </div><div>　　具有中空纖維結構的疏水膜具有非常高的比表面積，并為兩相傳質提供了傳質界面。因為該材料具有良好的疏水性和化學穩定性。在傳統的吹脫工藝中，堿加解離后的高氨氮廢水首先進入吹脫塔，并使用大量壓縮空氣進行吹脫，吹出的廢氣需要進入酸吸收塔吸收廢氣中的氨，以免進入大氣污染環境。<br /> </div><div>　　在膜吸收過程中，膜接觸器取代了汽提塔和解吸塔的功能，并將它們組合成一個完整的膜接觸器。在膜接觸器中，脫氨解吸和吸收過程可以同時進行。由于膜接觸器中的中空纖維膜為長絲結構，接觸面積大，反應效率提高，設備占地面積可大大減少。此外，由于膜吸收工藝不使用氣提，不會給工藝帶來二次污染，具有很強的技術優勢。<br /> </div><div>　　氣態膜脫氨技術具有以下特點：<br /> </div><div>　　1) 汽提塔+化學吸收塔或汽提器+中和反應器的微組合可同時實現膜中揮發性物質的分離富集，具有高比表面積、高傳質驅動力、占地小、投資低等優點。<br /> </div><div>　　2) 污水和吸收劑不直接接觸，兩相獨立控制，無溢流和泡沫夾帶。<br /> </div><div>　　3) 石灰可用于調節廢水的pH值，降低運行成本，且不易結垢。<br /> </div><div>　　4) 在接近大氣壓下運行時，電能僅用于驅動進料液通過膜組件，節電>80%。<br /> </div><div>　　5) 廢水經過良好的預處理后，運行性能穩定，使用壽命長。<br /> </div><div>　　6) 模塊化設計，線性放大，出水脫氨氮值可控，可與生物處理無縫耦合。<br /> </div><div>　　7) 副產品(硫酸銨、磷酸銨、氯化銨、脫氨等)種類多、濃度高、純度高，可重復利用，可有效降低運行成本。<br /> </div><div>　　8) 整個過程是封閉的，有效避免了二次污染。<br /> </div><div>　　9) 操作靈活性大，小規模處理能力很經濟，而氨蒸發和汽提大規模使用，后期擴展方便。</div> </div> <div id="nlvprzx" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-1152534.html">淺談工業廢水脫氨的工藝技術</a></li> <li>下一篇：<a href="/Article-1143932.html">低溫多效蒸發的技術優勢介紹</a></li> </ul> </div> </div> <div id="rxjdxll" class="foot_box"> <div id="xvhhjhh" class="foot_t"> <div id="tbdfhhv" class="w1200"> <a href="/">網站首頁</a>　|　<a href="/aboutus.html" rel="nofollow">關于我們</a>　|　<a href="/products.html">產品中心</a>　|　<a href="/news.html">新聞動態</a>　|　<a href="/article.html">技術文章</a>　|　<a href="/honor.html" rel="nofollow">榮譽資質</a>　|　<a href="/order.html" target="_blank" rel="nofollow">在線留言</a>　|　<a href="/contact.html" rel="nofollow">聯系我們</a> <span><a href="javascript:;" 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