甘肅污泥脫水用陽離子聚丙烯酰胺應注意哪些問題？-鞏義市元成環?？萍加邢薰?/title> <meta name="keywords" content="甘肅污泥脫水用陽離子聚丙烯酰胺應注意哪些問題？"> <meta name="description" content=" 污泥脫水中選用合適的聚丙烯酰胺非常重要，聚丙烯酰胺選擇要以效率高、用量少為原則。一般來說，有機污泥適宜添加陽離子聚丙烯酰胺，而無機污泥應加入陰離子聚丙烯酰胺。市政污泥主要以有機污泥為主，并帶有一定量的負電荷，因此選用陽離子聚丙烯酰胺，一般聚丙烯酰胺的分子量越大，絮凝效率越高，而在實際運用中陽離子聚丙烯酰胺的電...">  <link rel="stylesheet" href="/template/default/index/css/bootstrap.css"> <link href="/template/default/index/css/bootstrap-glyphicons.css" rel="stylesheet"> <link rel="stylesheet" href="/template/default/index/css/style.css"> <link rel="stylesheet" href="/template/default/index/css/mobile.css">  <script src="/template/default/index/js/jquery.js"></script> <script src="/template/default/index/js/popper.js"></script> <script src="/template/default/index/js/bootstrap.js"></script> <script src="/template/default/index/js/jquery.supermarquee.js"></script> <script> jQuery(function($){ $('#marquee1').SuperMarquee({ isMarquee:true, isEqual:false, scrollDelay:20, direction:'left' }); }); </script> 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</p><p>污泥脫水中選用合適的聚丙烯酰胺非常重要，聚丙烯酰胺選擇要以效率高、用量少為原則。一般來說，有機污泥適宜添加陽離子聚丙烯酰胺，而無機污泥應加入陰離子聚丙烯酰胺。市政污泥主要以有機污泥為主，并帶有一定量的負電荷，因此選用陽離子聚丙烯酰胺，一般聚丙烯酰胺的分子量越大，絮凝效率越高，而在實際運用中陽離子聚丙烯酰胺的電荷質決定污泥選型的正確性，離子度越高價格越貴。在實際的應用中，聚丙烯酰胺分子量一般選用1000萬以上效果會好些，依實際的選擇實驗為準。</p><p style="text-align:center"></p><p>按照離子密度的高低，陽離子型聚丙烯酰胺又分成弱陽離子，中陽離子和強陽離子三種，實際中都采用較多。使用聚丙烯酰胺一般分為兩個過程，一是高分子電解質與粒子表面的電荷中和；二是高分子電解質的長鏈與粒子架橋形成絮團。絮凝的主要目的是通過加入陽離子聚丙烯酰胺使污泥中細小的懸浮顆粒和膠體微粒聚結成較粗大的絮團。隨著絮團的增大，沉降速度逐漸增加。從而可以較好的通過壓濾機壓泥。</p><p>但是有客戶說有時候陽離子污泥處理的脫水效果并不理想，那么污泥脫水陽離子聚丙烯酰胺應注意哪些問題？ </p><p>污泥脫水用陽離子聚丙烯酰胺時，應注意操作事項，使陽離子聚丙烯酰胺能更好地發揮絮凝沉淀作用。</p><p>*先，過濾壓力對污泥的比電阻有很大的影響。通過實驗發現，自然過濾速度會隨著過濾壓力的逐漸增加而緩慢增加。根據比電阻的測試計算方法，污泥的比電阻與產品的過濾壓力成正比。</p><p>其次，要注意污水的PH值，因為污水的PH值對水處理的各個環節都有一定的影響，對污泥脫水也有非常重要的影響。</p><p>第三，攪拌速度應設定在100-300轉/分。如果攪拌不夠，陽離子聚丙烯酰胺很難發揮自身作用，因此在使用過程中必須充分攪拌，防止攪拌不足對污泥脫水的影響。</p><p>在需要使用陽離子絮凝劑進行污泥脫水處理時，能先進行小試，確定需要使用哪種離子度的陽離子絮凝劑，一方面降低使用成本，一方面加強使用效果。</p><p> </p></span></p> <div class="prenext"> <div class="yunu-infocontent-return"> 本文標簽：</div> <span class="pre"><b>上一篇：</b><a 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