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style="font-family:新宋體"> </span></span><strong>反滲透膜</strong><span style="font-size:14px"><span style="font-family:新宋體">如果長期運用于<strong>反滲透系統(tǒng)</strong>時，大量的污染物吸附沉積膜元件是需要清潔的，并確保有效的操作。污染和清洗始終是一個動態(tài)平衡過程，每次清洗時需要保持較大限度的清潔，可使膜元件更有效的工作。下面給大家介紹下反滲透膜被污染的解決方法吧。</span></span></p><p><span style="font-size:14px"><span style="font-family:新宋體"><img alt="超純水設備" src="http://img73.chem17.com/9/20201010/637379180442182517505.jpg" style="margin:0px; width:800px" /></span></span></p><p><span style="font-family:新宋體; font-size:14px"> </span><span style="font-size:14px"><span style="font-family:新宋體">系統(tǒng)在一段操作時間操作后，如果每個膜元件清洗不到位，然后工作，污染將進一步積累，可導致膜表面進一步流堆積堵塞，清洗劑不能穿透現(xiàn)象。在由于長期壓力的同時，污染物會發(fā)生密實現(xiàn)象，這將導致膜的清洗非常困難的恢復，導致膜的報廢。</span></span></p><p><span style="font-family:新宋體; font-size:14px"> </span><span style="font-size:14px"><span style="font-family:新宋體"><strong>膜清洗</strong>需要用到膜清洗劑，而膜清洗劑選擇需根據(jù)污染物的類型而定，一類的污染物只能用某種膜清洗劑，并按一定的清洗工藝進行，才能有效果，特別是有一些污染物特別明顯，只有用針對性清洗劑，其它清洗劑往往沒有如何效果，或者速度非常慢。</span></span></p><p><span style="font-size:14px"><span style="font-family:新宋體"><img alt="超純水設備" src="http://img75.chem17.com/9/20201010/637379175423186181364.jpg" style="height:316px; margin:0px; width:505px" /></span></span></p><p><span style="font-family:新宋體; font-size:14px"> </span><span style="font-size:14px"><span style="font-family:新宋體">避免<strong>反滲透膜</strong>的污染：</span></span></p><p><span style="font-family:新宋體; font-size:14px"> </span><span style="font-size:14px"><span style="font-family:新宋體">膜系統(tǒng)在運行的過程中發(fā)生污染，這是不可避免地現(xiàn)象。但是我們可以采取一些方法來減輕污染的程度，減慢污染的速度。</span></span></p><p><span style="font-size:14px"><span style="font-family:新宋體">1、改善膜系統(tǒng)的操作參數(shù)，調(diào)節(jié)溫度、壓力、循環(huán)流速和濃縮倍數(shù)等因素，這樣可以延緩膜通量的衰減速度。</span></span></p><p><span style="font-size:14px"><span style="font-family:新宋體">2、選用合適的膜清洗劑和正確的膜清洗工藝對膜系統(tǒng)進行及時有效的清洗，不要等膜系統(tǒng)污染的累積非常嚴重的時候再清洗，這時通常難以*恢復。</span></span></p><p><span style="font-size:14px"><span style="font-family:新宋體">3、從改進前工藝和預處理入手，提高進料的質(zhì)量，盡量減輕膜的工作負荷，確保料液符合膜元件的進入標準。 </span></span></p> </div> <div id="tq6ztn8r" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/szhcy-Article-2399544/">PH值的原理</a></li> <li>下一篇：<a href="/szhcy-Article-2395929/">電磁感應式電導率儀結構組成</a></li> </ul> </div> </div>   <div id="tq6ztn8r" class="foot_box"> <div id="tq6ztn8r" class="foot_t"> <div id="tq6ztn8r" class="w1200"> <a href="/">網(wǎng)站首頁</a>　|　<a href="/aboutus.html">關于我們</a>　|　<a href="/products.html">產(chǎn)品中心</a>　|　<a href="/news.html">新聞動態(tài)</a>　|　<a href="/article.html">技術文章</a>　|　<a href="/honor.html">榮譽資質(zhì)</a>　|　<a href="/order.html" target="_blank">在線留言</a>　|　<a href="/contact.html">聯(lián)系我們</a> <span><a href="javascript:;" class="toTop"></a></span> </div> </div> <div id="tq6ztn8r" class="foot_b"> <div id="tq6ztn8r" class="w1200"> 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