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4、鹽被有機物包裹，結晶困難：有機物吸附于晶格上，形成晶格畸變，使細鹽過多，晶體顆粒長不大，無法離心脫鹽，出鹽量大幅度降低；<br> 5、有機物以吸附、夾帶的方式進入結晶鹽中，鹽的品質逐步下降，顏色逐漸變深；<br> 6、富集有機物和不明物質的母液，顏色深，處置困難、處置成本高。<br> 三、解決方案和原理<br> 只有去除廢水中的溶解性大分子有機物和不明物質，才能解決上述問題，才能提高蒸發效率，得到高質量的硫酸銨產品。<br> 這類物質很多屬于難降解有機物，呈溶解狀，大部分還不帶電荷，采用普通的混凝沉淀、過濾工藝難以去除。<br> 本藥劑是針對上述問題開發的新產品，產品為內部呈網狀結構的液體物質，無毒、無味、無揮發性、無腐蝕性，無氧化性，使用高效、安全、方便。<br> 由于呈網狀結構，它具有很強的吸附、架橋、網捕功能，當廢水中加入一定量的藥劑后，可以通過絮凝、絡合的方式，把廢水中的懸浮物和粘稠物，尤其是不帶電荷的難生化降解的大分子有機物和不明物質，迅速沉淀下來，降低廢水中的雜質含量，使粘度變小。從而減少泡沫、提高蒸發效率、提升結晶鹽品質、降低母液量，降低廢水的綜合處理成本。<br> 四、實驗過程及現象<br> 1、實驗步驟<br> ①藥劑稀釋：將藥劑用蒸餾液稀釋10倍（1份藥劑+9份蒸餾液）；<br> ②將稀釋10倍的藥劑25ml，緩慢加入到500ml攪拌的母液中（添加量按原藥劑計為5‰），藥劑加完后繼續攪拌10分鐘；此時藥劑會與母液中的溶解性有機物反應生成絮狀物（見照片）；<br> ③過濾，抽濾，濾紙上有大量的粘稠狀物質，過濾不暢；添加硅藻土助濾劑，過濾速度加快；<br> ④濾液顏色變淺、更透徹，粘稠度變?。ㄒ娬掌?。<br> 2.蒸發對比<br> 經過藥劑處理的母液，蒸發過程平穩；結晶鹽白度高。<br> 3、實驗現象</p> <ul> <li><img src="images/1.png" alt=""></li> </ul> <ul> <li><img src="images/2.png" alt=""></li> </ul> <ul> <li><img src="images/3.png" alt=""></li> </ul> <ul> <li><img src="images/4.png" alt=""></li> </ul> <ul> <li><img src="images/5.png" alt=""></li> </ul> </div> <p>五.說明</p> <p> 實驗室做出的結晶鹽顆粒小的原因是：①濃縮比大，鹽的過飽和度過大；<br> ②自然冷卻結晶時間過短。<br> 六、結果分析及結論<br> 1、經過藥劑的處理，絮凝并過濾出了大量粘稠狀物質，廢水的濾液顏色變淺、通透度變好，廢水的粘稠度變??；<br> 2、母液經過藥劑處理后，蒸發結晶的硫酸銨比原水的結晶鹽白度高；<br> 3、母液經過藥劑處理后，脫鹽后的新母液性狀好，有利于再次蒸發結晶。<br> 結論：經過藥劑處理完全可以解決蒸發過程中出現的問題，獲取高品質的結晶鹽。<br> 七、建議：<br> 1、目前廢水pH7.5，蒸發時氨氣味道大。蒸發考慮到廢水中氨氮含量高，為防止蒸發時逸出氨氣，影響蒸餾液的生化，根據蒸發器的材質，參考其他用戶的實際運行經驗，建議蒸發時應調酸堿度為弱酸性，一般控制在pH5左右。<br> 2、藥劑添加量不同，濾液的性狀有差別，結晶鹽白度差別不大，建議中試時，由大的添加量開始，逐步減少，以滿足生產要求為目標。同時，還要考慮蒸發過程中的其他問題的解決。</p> </main> </section> <div class="feature"> <img class="sm" src="images/main5.jpg"> </div> </div> <footer class="footer"> <div class="footer-pc"> <ul> <li><p>地址：山東省濱州市博興縣開發區</p></li> <li><P>信息服務電話：13396282697 18954359819</P></li> <li><p>江蘇省辦事處：13338088961 周經理 </p></li> <li><p>郵編：256500 </p></li> <li> <a target="_blank" title="魯ICP備19059072號">魯ICP備19059072號</a></li> </ul> </div> <div class="footer-phone"> <button data-am-smooth-scroll class="am-btn am-btn-success">Top<i 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