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style="text-align:center"></p><p>聚丙烯酰胺主要用于污水處理絮凝沉淀懸浮膠體，便于后續工藝回收或污泥脫水。</p><p>絮凝劑的作用和原理：水中膠體顆粒小，表面水化和帶電使其穩定。在水中加入絮凝劑后，水解成帶電荷的膠體及其周圍的離子，形成雙電層結構的膠束。給藥后的快速攪拌促進了水的膠體粒子與被絮凝劑水解的膠束之間的碰撞機會和碰撞次數。水中的雜質顆粒在絮凝劑的作用下失去穩定性，然后聚集成較大尺寸的顆粒，然后在分離設備中沉淀或漂浮。</p><p>混合是促進絮凝劑快速擴散到水中，與所有廢水混合均勻的過程。水中的雜質顆粒與絮凝劑相互作用，通過雙電層壓縮和電中和的機制失去或降低其穩定性。產生微絮狀物的過程稱為凝結。絮凝是混凝產生的微絮體在架橋物質和水流的攪動下，通過吸附架橋和泥沙網捕，生長成大絮體的過程?；旌?、混凝、絮凝統稱為混凝?；旌线^程通常在混合罐中完成，而凝聚和絮凝在反應罐中進行。</p><p><br/></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 href='http://www.diangexuechengji.com/xinwen/876.html'>聚丙烯酰胺高分子聚合物</a></span> <span class="next"><b>下一篇：</b><a href='http://www.diangexuechengji.com/xinwen/878.html'>污水處理絮凝劑用多了怎么辦？</a></span> <div class="clearfix"></div> </div> <div class="clearfix"></div> <div class="row nynew"> <div class="col-md-6"> <div class="news"> <div class="sytit"> <h3>技術百科</h3></div> <ul> <li> <a href="http://www.diangexuechengji.com/jishu/30.html" title=聚丙烯酰胺使用方法> 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