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<li id="nz55xhl" class=""> <table> <tr> <td><img src="http://img69.hbzhan.com/gxhpic_f8e8d9e2a0/cc742b5ce382ab34e8bb45d8bab3c97da0081b84b1f7e8ca6155ca385addd6bd4af40aeb10831f06_600_600_5.jpg" alt=""></td> </tr> </table> </li> </ul> </div> <div id="ffv5xxz" class="hd"> <a class="btnLeft prev"></a> <ul><li></li></ul> <a class="btnRight next"></a> </div> </div> </div> <script type="text/javascript"> jQuery(".smallImg").slide({titCell:".hd ul",mainCell:".smallImg_in ul",autoPage:true,effect:"left",autoPlay:false,vis:3}); </script> <div id="pnfb55v" class="itemdesc fl"> <h1>PAM除油聚丙烯酰胺混凝劑</h1> <div id="5xlrh5j" class="prodetail_ms"> <strong>產品描述：</strong>PAM除油聚丙烯酰胺混凝劑通過測定污泥沉降性能、污泥比阻力、泥餅固含量以及污泥沉降后上清液中胞外聚合物（EPS）組成的變化，研究了陰離子聚丙烯酰胺的投加量和用量對污泥脫水性能的影響，為正確選擇污泥脫水過程中聚丙烯酰胺的用量和用量提供了科學依據。目前，對提高陰離子聚丙烯酰胺污泥脫水性能的研究主要集中在聚丙烯酰胺佳投加量的確定上。 </div> <p><span>發(fā)布時間：</span>2020-08-17</p> <p><span>瀏覽次數：</span>925</p> <div id="hhjbrpr" class="product_btn"> <a href="/order.html" class="probtn1" rel="nofollow">在線詢價</a> <a href="/contact.html" class="probtn2" rel="nofollow">聯(lián)系我們</a> </div> </div> </div> <div id="bzrb5r3" class="pro_list"> <div id="5lnbfr3" class="pro_con"> <div id="pl5hvhr" class="pro_gs"> <div id="7rt5dbr" class="gs_tit"><h3>產品概述</h3></div> <div id="ffjzpb5" class="gs_text"> <p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體"><strong>PAM除油聚丙烯酰胺混凝劑</strong>干燥方法：</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">1、熱風干燥</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">熱風干燥是用吹入熱風的手段進行除水，可采用不同的設備。通入熱風，進行干燥。由于低溫熱風干燥的時間過長，一般采用高溫熱風干燥。它含有—NH2基，當溫度高于60℃時,會發(fā)生亞胺化反應。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">2、鹽析干燥</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">當加入少量的電解質時，其動電位降低，聚丙烯酰胺粘性下降，當加入過量的電解質時，溶劑水與電解質的粒子發(fā)生強烈的水化作用，因此，這種水化的溶劑分子就*失掉了對PAM的水合能力，使聚合物失掉溶劑水，破膠沉淀下來。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">3、沉析干燥</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">將聚丙烯酰胺膠凍先制成1-2毫米的顆粒，然后與其親水性的不良溶劑（比如甲醇、乙醇、丙酮）接觸，由于這種溶劑只溶解水而不溶解高聚物，加入溶劑之后會生成沉淀?？墒咕郾０返暮恳状蠓认陆?，粘性顯著減小，干燥時不會使切斷的凍膠在結塊，使整個體系傳熱系數大大提高，熱分布均勻，也可以在亞胺化溫度以上進行熱風干燥，比直接熱風干燥的時間短。在實際干燥過程中，可先用甲醇沉析，然后再熱風干燥，還可以*采用甲醇沉析法進行干燥。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">4、噴霧聚合干燥</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">在聚合的同時，熱空氣將水分帶走，得到PAM干粉。反應時間短，產品質量高，適于工業(yè)化生產。但僅能生產較低分子量的聚丙烯酰胺。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">5、共沸干燥</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">加入一種不能溶于水，但可與水共沸，優(yōu)勢單體和聚合物的不良溶劑的液體，如石油醚、甲苯、二甲苯等等，在90-100℃的溫度下共沸蒸餾，除掉大量的水，可得到含水率0-5%的固體聚合物。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">6、反應熱除水干燥</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">先將丙烯酰胺與水充分混合好，在50-100℃下預熱，然后與引發(fā)劑聚合，一起沉積在一個表皿上，再加熱到50℃，在表皿上進行聚合，由于聚合反應放熱，可一邊進行聚合，一邊預熱表面除去水份。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體"><strong>PAM除油聚丙烯酰胺混凝劑</strong>是一種水溶性高分子聚合物(化合物)，是由丙烯酰胺均聚物或與其他單體共聚的聚合物統(tǒng)稱，它是水溶性高分子中應用廣泛的品種之一。聚丙烯酰胺的溶解時間較長，在冬季溶解時間需要更久，這與溶解的溫度有關。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">家都知道冬天和夏天的溫度相差幾十度，由于溫度的問題會影響到聚丙烯酰胺的溶解速度和分子鏈的伸展，正常溶解聚丙烯酰胺的干粉需要一個小時左右，在冬天由于溫度低，溶解聚丙烯酰胺干粉要一個半小時才能夠*溶解開，使產品的分子鏈*伸展。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">在溶解聚丙烯酰胺的時候用地下水較好，因為冬天地下水的溫度相對高一點，這樣溶解聚丙烯酰胺的時候能夠增加溶解的速度，也可以溶解的更加*。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">冬天溫度較低，需要處理的廢水里面的懸浮顆?；钚韵鄬档停@樣對聚丙烯酰胺的吸附能力也是有一定的影響，在這種情況下可以延長聚丙烯酰胺和廢水之間的反應時間讓聚丙烯酰胺和廢水之間能夠充分的反應這樣就能夠達到比較好的效果。</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">冬季請延長聚丙烯酰胺的溶解時間，避免藥劑溶解不開，浪費藥劑的現象！</span></span></span></p><p><span style="color:#000000"><span style="font-size:14px"><span style="font-family:宋體">在各種提高污泥脫水性能的絮凝劑中，聚合物有機絮凝劑聚丙烯酰胺(PAM)由于能顯著提高城市污水處理廠污泥的濃度和脫水性能，具有適應性強、操作簡單等特點，得到了廣泛的應用。聚丙烯酰胺(PAM)是一種水溶性線型聚合物，有陰離子型、陽離子型和非離子型三種類型.結果表明，陽離子聚丙烯酰胺和陰離子聚丙烯酰胺均能有效地改善污泥的脫水性能，可作為污泥離心脫水的調理劑，陽離子聚丙烯酰胺的脫水效果優(yōu)于陰離子聚丙烯酰胺。但陰離子聚丙烯酰胺的投加量是陽離子聚丙烯酰胺的1：2倍，且價格相對低廉，應作為污泥脫水的選擇。</span></span></span></p> </div> </div> </div> <link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" id="order"></a> <div id="lhdhbr5" class="ly_msg" id="ly_msg"> <form method="post" name="form2" id="form2"> <h3>留言框 </h3> <ul> <li> <h4 class="xh">產品：</h4> <div id="dpt5nnd" class="msg_ipt1"><input class="textborder" size="30" name="Product" id="Product" value="PAM除油聚丙烯酰胺混凝劑" placeholder="請輸入產品名稱" /></div> </li> <li> <h4>您的單位：</h4> <div id="tfxrtvx" class="msg_ipt12"><input class="textborder" size="42" name="department" id="department" placeholder="請輸入您的單位名稱" /></div> </li> <li> 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