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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="nzld55v" class="pro_list"> <div id="5bvd3jj" class="pro_con"> <div id="pbf5ddd" class="pro_gs"> <div id="dptnhlr" class="gs_tit"><h3>產(chǎn)品概述</h3></div> <div id="nlf3bhb" class="gs_text"> <p><strong>化工絮凝劑聚丙烯酰胺用途</strong><br />化工污水絮凝劑燒杯選型實驗</p><p>實驗?zāi)康模?br />1、選擇合適的城市污水處理絮凝劑<br />2，通過對比絮凝效果和沉降性能確定jia的絮凝劑。<br />實驗原理：<br />1、利用其分子上所帶電荷與污泥科料所帶電荷相反，正負(fù)電荷中和后使之脫穩(wěn)。<br />2、利用其高分子的長鏈條作用把許多細(xì)小污泥顆粒吸附并纏結(jié)在一起，結(jié)成較大的顆粒。前一作用為壓縮雙電層，后一作用為吸附架橋。<br />實驗設(shè)備與試劑<br />1.萬分之一電子天平<br />2.多頭磁力加熱攪拌器<br />3.10ml注射器吸管3個，1000ml燒杯3個，100ml燒杯3個，玻璃棒3個<br />4.待實驗的三種絮凝劑分為為： PA-2;PN8;PC-1 <br />5.實驗樣品：化工污水 <br />實驗人員及日期<br />1、實驗人員： <br />2、實驗日期： 2019-5-21 <br />實驗步驟：<br />1、取3個干潔1000ml的大燒杯分別從左到右編號為1、2、3、號，各取 1000ml 用自來水為溶劑。<br />2，把待實驗的三種絮凝劑(PA-2;PN8;PC-1 用萬分之一電子天平各取0.5g 為溶質(zhì)分別對應(yīng)加入1,2,3溶劑中，用多頭磁力加熱攪拌<br />器，攪拌1小時為溶液待用。<br />3，取3個干潔100ml的燒杯分別對應(yīng)與1.2.3.4溶液；取市城市污水分別加入100ml<br />4，用10ml注射器吸管取1.2.3溶液各取2.5ml分別加入裝有城市污水的3個燒杯，用玻璃棒均勻的攪拌觀察污水的變化情況。 <br />實驗結(jié)果<br />1、絮凝劑溶解速度由快到慢順序： 3.2.1 <br /> 絮凝劑粘稠度由大到小順序： 3.2.1 <br />2、2號和3號燒杯中污泥絮凝速度快，加入絮凝劑后迅速凝結(jié)成體積較大的塊狀絮體；<br />3、1號燒杯未加絮凝劑，沉降過程中基本沒有發(fā)生沉降。<br />4、污泥絮凝過程中，2號和3號清液體積多，其次是3號，再次是2號，<br />清液色度淺為3號和2號</p><p><strong>化工絮凝劑聚丙烯酰胺用途</strong></p><p>選型的絮凝劑樣品</p><p>討論<br />1、此次實驗發(fā)現(xiàn)，加入絮凝劑后污泥上浮，可能和泥的性狀有關(guān)。3號和2號才能進(jìn)形成絮體速度快，3絮凝效果hao，2號次之<br />2、 2號和3號才能效果hao，選用絮凝劑時應(yīng)測定清液各項污染指標(biāo)，以確定脫水清液對生化系統(tǒng)的影響。<br />3、此次實驗攪拌采用手動攪拌，由于攪拌強度是絮凝作用中的重要影響因素，因此，實驗結(jié)果受到了一定影響，具有一定的誤差，建議之后采用四聯(lián)攪拌機進(jìn)行攪拌。</p><p>應(yīng)用領(lǐng)域</p><p>可以用于但不限于以下一些領(lǐng)域，</p><p>－用于無機污泥的脫水，可以顯著提高生產(chǎn)效率，泥餅的固含量及降低濾出水的固形物含量；</p><p>－用于過濾，提高濾水的質(zhì)量及提高濾機的生產(chǎn)效率；</p><p>－用于濃縮或沉降，可以提高濃縮效率，加快沉降速度等；</p><p>－水的澄清，有效降低處理水的SS值，濁度，提高出水品質(zhì)；</p><p>－被當(dāng)做一些工業(yè)過程的助劑。</p><p>高分子聚丙烯酰胺分子鏈很長，使其能在兩個粒子之間架橋，加速粒子沉降，是很好的絮凝劑，可以降低液體之間的磨擦阻力。<br />作用原理　<br />1、絮凝作用：<br />聚丙烯酰胺PAM用于絮凝時，與被絮凝物種類表面性質(zhì)，特別是動電位，粘度、濁度及懸浮液的PH值有關(guān)，顆粒表面的動電位，是顆粒阻聚的原因加入表面電荷相反<br />pam能使動電位降低而凝聚。　<br />2、吸附架橋：<br />PAM分子鏈固定在不同的顆粒表面上，各顆粒之間形成聚合物<br />的橋，使顆粒形成聚集體而沉降。<br />3、表面吸附：<br />PAM分子上的極性基團顆粒的各種吸附。<br />4、增強作用：<br />PAM分子鏈與分散相通過種種機械、物理、化學(xué)等作用，將分散相牽連在一起，形成網(wǎng)狀。</p><p>產(chǎn)品簡介：聚丙烯酰胺（Polyscrylamide）簡稱PAM，分陽離子型、陰離子型、非離子型，分子量從400-2000萬之間，產(chǎn)品外觀為白色粉末，易溶于水，溫度超過120℃時易分解。產(chǎn)品性能：<br />聚丙烯酰胺分子中具有陽性基團（-CONH2），能與分散于溶液中的懸浮粒子吸附和架橋，有著*的絮凝作用，因此廣泛用于水處理以及冶金、造紙、石油、化工、紡織、選礦等領(lǐng)域。PAM用作污水處理，對水中有機物去除效率高，用量少，沉降速度快，制水成本低，是其它絮凝劑無法替代的產(chǎn)品。聚丙烯酰胺分為：陰離子型、陽離子型和非離子型。</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="vltzxnl" class="ly_msg" id="ly_msg"> <form method="post" name="form2" id="form2"> <h3>留言框 </h3> <ul> <li> <h4 class="xh">產(chǎn)品：</h4> <div id="nlrvpf5" 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