人人超碰国产精品97_MBR膜使用后期怎么清洗？-徐州潔誠環(huán)?？萍加邢薰?/title> <meta name="keywords" content="MBR膜使用后期怎么清洗？" /> <meta name="description" content="" /> <link href="/templates/jchb/css/index.css" rel="stylesheet" type="text/css"> <link href="/templates/jchb/font/iconfont.css" rel="stylesheet" type="text/css"> <link rel="stylesheet" href="/css/pagination.css" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://m.tjhddx.com/">久久久久精品国产三级,日产精品久久久1区2区,亚洲综合色一区二区三区另类,日韩精品久久久久久久电影</a></h1> <div class="pl_css_ganrao" style="display: none;"><style id="ht57p"><meter id="ht57p"><strike id="ht57p"><legend id="ht57p"></legend></strike></meter></style><th id="ht57p"><b id="ht57p"><output id="ht57p"><em id="ht57p"></em></output></b></th><rp id="ht57p"></rp><label id="ht57p"><strong id="ht57p"><nobr id="ht57p"><optgroup 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class="ny_xksb ny_product_show"> <div id="vn5v5bz" class="container"> <div id="lr5trzh" class="mianr-mid clearfix"> <div id="vddbvbj" class="nyinfo_title"> MBR膜使用后期怎么清洗？ </div> <div id="tdb55zr" class="info_time"> 發(fā)布時(shí)間：2020/6/10 16:10:40 點(diǎn)擊次數：1771 </div> <div id="fzjv5vb" class="keyword_light"> <p style="text-indent: 2em; text-align: left;">第一、加強預處理。</p><p style="text-indent: 2em; text-align: left;">預處理對MBR工藝來(lái)說(shuō)及其重要。污水中含有很多雜質(zhì)纖維和懸浮物，會(huì )堵塞在膜表面，從而減少膜的透水面積，引起膜污染。</p><p style="text-indent: 2em; text-align: left;">安裝小于1mm的細篩；在生物池的測流上安裝細篩；在膜池里安裝細篩。</p><p style="text-indent: 2em; text-align: left;">第二、物理清洗。</p><p style="text-indent: 2em; text-align: left;">用人工、機械或清水池的方法清洗。常見(jiàn)的方法為在線(xiàn)反沖洗。</p><p style="text-indent: 2em; text-align: left;">在線(xiàn)沖洗：每天對膜進(jìn)行水反洗，反洗壓力大于0. 1MPa，反洗時(shí)間根據膜廠(chǎng)家的要求確定，反洗水用膜出水。</p><p style="text-indent: 2em; text-align: left;">第三、化學(xué)清洗。</p><p style="text-indent: 2em; text-align: left;">用化學(xué)藥劑對膜進(jìn)行浸泡和清洗。</p><p style="text-indent: 2em; text-align: left;">在線(xiàn)清洗：為延長(cháng)MBR膜的清洗的周期，可考慮間隔3-6天在反洗時(shí)分別加入定量NaClO和HC1進(jìn)行在線(xiàn)化學(xué)反洗，每次反洗3-5分鐘，等藥劑反洗入膜片后，再放置20-30分鐘后才投入正常出水，在清洗過(guò)程中要持續曝氣。</p><p style="text-indent: 2em; text-align: left;">離線(xiàn)清洗：當操作負壓超過(guò)0.05MPa時(shí)，需對MBR膜片及時(shí)進(jìn)行離線(xiàn)清洗。清洗方法是將MBR膜片從膜架上取下，用清水對膜片表面進(jìn)行沖洗，除去膜片表面附著(zhù)的活性污泥；再用定量NaClO和定量的NaOH溶液分別浸泡，殺死附著(zhù)在膜表面的細菌，并除去附著(zhù)在膜片表面的有機物和膠體物質(zhì); 再用清水對膜片表面進(jìn)行沖洗，裝入膜池后還應對膜片進(jìn)行2-3分鐘的反洗，MBR膜片通量即可恢復。</p><p><br style="text-indent: 2em; text-align: left;"/></p> </div> <table border="0" align="center" cellpadding="0" cellspacing="0" id="newsfoot" style="line-height: 26px; margin-bottom: 10px; margin-top: 30px; border: 1px solid #d5d5d5; width: 100%; padding: 10px 20px;"> <tr> <td width="584" align="left" style="padding-left: 20px;"> 上一條：沒(méi)有啦！ <br /> 下一條：<a href="/news_show.aspx?id=5">印染工業(yè)廢水怎樣處理</a> </td> <td width="118" id="list_hide"> <a 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