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style="text-align:center"></p><p>一、聚丙烯酰胺使用說明(水處理實驗室工藝):</p><p>待配藥劑：聚丙烯酰胺干粉顆粒。需要準備的實驗設備：攪拌器、n個帶刻度的燒杯(數量根據自己準備的藥劑類型和數量確定)、帶刻度的量筒、一次性手套、一次性注射器、攪拌棒等。</p><p>其他：清潔自來水n升等。</p><p>*步：聚丙烯酰胺水溶液的制備。比例濃度設定為0.5：1000，即1000毫升水和0.5克聚丙烯酰胺干粉。</p><p>1.*先，將準備好的燒杯放在攪拌器上，加入500毫升干凈的自來水，打開攪拌器，調節攪拌速度；</p><p>2.用天平稱取1g聚丙烯酰胺干粉，緩慢均勻地加入旋轉水中。千萬不要一次性直接添加，直接添加易結塊，會影響效果；</p><p>3.耐心等待60分鐘左右，定時觀察水溶液的溶解狀態，當顆粒狀或小顆粒完全消失，溶液透明時，聚丙烯酰胺水溶液即配制完成。</p><p>第二步：開始選型測試。</p><p>1.將配制好的污水搖勻，倒入100毫升量筒，倒入多種聚丙烯酰胺試劑；</p><p>2.用注射器吸取0.5毫升-1毫升聚丙烯酰胺溶液，注入污水量筒，</p><p>3.用攪拌棒攪拌均勻，緩慢攪拌，向一個方向勻速攪拌，靜置，觀察絮凝效果，根據情況增加試劑的注入量。</p><p>4.重復上述步驟1.2.3，觀察比較哪種聚丙烯酰胺效果好，并記錄。</p><p>二、聚丙烯酰胺的使用注意事項：</p><p>1.使用前需要將聚丙烯酰胺干粉或聚丙烯酰胺乳液配制成水溶液；</p><p>2.在污水處理中，聚丙烯酰胺的用量和濃度并不是越大越好。過度添加會產生相反的效果；</p><p>3.聚丙烯酰胺溶液現配現用。一旦失效，溶液的粘度就會下降，甚至失去粘度。需要重新配置水溶液；</p><p>4.避免將聚丙烯酰胺干粉或聚丙烯酰胺水溶液與鐵等金屬制品接觸，影響產品性能和效果。</p><p>5.聚丙烯酰胺水溶液可用常溫水制備。</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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