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Neoteric approach for mitigation of fouling in membrane bioreactor utilizing green composites
Applied Water Science ( IF 5.7 ) Pub Date : 2020-07-14 , DOI: 10.1007/s13201-020-01280-6
Sowmya Surappanahalli Rajanna , Madhu Gattumane Motappa , Madhusoodana Chengala Damodara

Purification of water is a critical and inevitable process at present to avoid the harmful effect of polluted water and to meet the need for safe drinking water to millions of people in the world. Several methods of water purification exist, but the combination of adsorption and filtration is found to be paramount in the water treatment process owing to the cost-effectiveness and efficacy of the process. The submerged ceramic membrane bioreactor, which includes both bioreactor and filtration system, is one of the most promising technologies effectively employed for water purification. The main hardship in using the membrane bioreactor system is the phenomena called fouling which decreases and gradually ceases the separation capacity of the membrane. The present work focuses on the reduction of fouling, thus increasing the efficacy of the membrane bioreactor system. The two green composite materials, chitosan beads with activated carbon (CH-AC) and cellulose acetate flakes with activated carbon (CA-AC), were used for the first time for reduction of fouling and found to be an excellent aid in the reduction of fouling. The composites synthesized were subjected to characterization using SEM, TEM and BET to study the physical properties of the composites. The optimum dosage of CH-AC and CA-AC for effective reduction of fouling was analysed. Thus, the present work imparts the novel, efficient, economical and eco-friendly solution for fouling reduction and also a significant improvement in the quality of effluent water.

中文翻译:

利用绿色复合材料减轻膜生物反应器结垢的新方法

为了避免污染水的有害影响并满足世界上数百万人对安全饮用水的需求,目前水的净化是至关重要且不可避免的过程。存在几种水净化方法,但是由于该方法的成本效益和功效,因此吸附和过滤的组合在水处理过程中是最重要的。浸没式陶瓷膜生物反应器(包括生物反应器和过滤系统)是有效用于水净化的最有前途的技术之一。使用膜生物反应器系统的主要困难是被称为结垢的现象,其减少并逐渐停止膜的分离能力。目前的工作重点是减少结垢,因此提高了膜生物反应器系统的功效。两种绿色复合材料,即具有活性炭的壳聚糖珠(CH-AC)和具有活性炭的醋酸纤维素薄片(CA-AC),首次用于减少结垢,并被发现是减少结垢的极好帮助。结垢。用SEM,TEM和BET对合成的复合材料进行表征,以研究复合材料的物理性能。分析了有效减少结垢的CH-AC和CA-AC的最佳剂量。因此,本发明为减少结垢提供了新颖,有效,经济和环保的解决方案,并且显着改善了废水的质量。带有活性炭的壳聚糖珠(CH-AC)和带有活性炭的醋酸纤维素薄片(CA-AC)首次用于减少结垢,被发现在减少结垢方面是极好的帮助。用SEM,TEM和BET对合成的复合材料进行表征,以研究复合材料的物理性能。分析了有效减少结垢的CH-AC和CA-AC的最佳剂量。因此,本发明为减少结垢提供了新颖,有效,经济和环保的解决方案,并且显着改善了废水的质量。带有活性炭的壳聚糖珠(CH-AC)和带有活性炭的醋酸纤维素薄片(CA-AC)首次用于减少结垢,被发现在减少结垢方面是极好的帮助。用SEM,TEM和BET对合成的复合材料进行表征,以研究复合材料的物理性能。分析了有效减少结垢的CH-AC和CA-AC的最佳剂量。因此,本发明为减少结垢提供了新颖,有效,经济和环保的解决方案,并且显着改善了废水的质量。TEM和BET研究复合材料的物理性能。分析了有效减少结垢的CH-AC和CA-AC的最佳剂量。因此,本发明为减少结垢提供了新颖,有效,经济和环保的解决方案,并且显着改善了废水的质量。TEM和BET研究复合材料的物理性能。分析了有效减少结垢的CH-AC和CA-AC的最佳剂量。因此,本发明为减少结垢提供了新颖,有效,经济和环保的解决方案,并且显着改善了废水的质量。
更新日期:2020-07-14
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