Studies on the Flocculation Characteristics of Bioflocculant and its Application in Sugarcane Industry

Abstract

生物絮凝剂(Bioflocculant)是一类由微生物产生的可使液体中不易降解的固体悬浮颗粒、菌体细胞及胶体粒子等凝聚、沉淀的特殊高分子代谢产物。它是利用生物技术,通过微生物发酵、分离提取而得到的一种新型、高效绿色水处理剂,具有高效性、无毒、无二次污染及生物可降解等优点。然而,目前由于生物絮凝剂生产成本高、絮凝机理研究不深入等原因,影响并阻碍了生物絮凝剂的发展与应用。 本论文旨在开发一种生物絮凝剂的低成本发酵培养基,通过考察其絮凝特性初步推测絮凝机理,并探索该生物絮凝剂在制糖工业中的实际应用效果。主要研究工作及成果如下: (1)以地衣芽孢杆菌(BacilluslicheniformisCG...Bioflocculant, a type of special macromolecules secreted by microorganisms, induces solid particles, cells and colloidal particles in a liquid suspension to flocculate and sediment. It is an efficient water treatment agent with characteristics of high flocculating efficiency, non-toxicity, non-secondary-pollution and biodegradability. In spite of these studies, bioflocculants have not yet been app...学位:工学硕士院系专业:化学化工学院化学工程与生物工程系_生物化工学号:2062009115130

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