Pilot Demonstration of Ceramic Membrane Ultrafiltration of Sugarcane Juice for Raw Sugar Production

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• 作者：Wen Li ; Guo-Qing Ling ; Chang-Rong Shi ; Kai Li ; Hai-Qin Lu ; Fang-Xue Hang…
• 关键词：Sugarcane juice ; Ultrafiltration ; Ceramic membrane ; Industrial demonstration ; Raw sugar
• 刊名：Sugar Tech
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：19
• 期：1
• 页码：83-88
• 全文大小：
• 刊物主题：Agriculture;
• 出版者：Springer India
• ISSN：0974-0740
• 卷排序：19

文摘

A field demonstration on the ultrafiltration of sugarcane juice for raw sugar production was conducted in a raw sugar mill in Guangxi Province, China. Heated limed sugarcane juice was processed using 0.05 μm ceramic membranes in a pilot plant with a design capacity of 5.5 m3/h. Results indicated that the ceramic membrane modules were satisfactory for sugarcane juice clarification, which yielded 119.13–142.43 L/(m2 h) of average flux under the volumetric concentration factor of 10–12 and produced clarified juice of superior quality with more than 1.2 unit rise in purity, 99.96 % reduction in turbidity, and 10.42 % removal of color. The membrane cleaning period was 10–25 h. Moreover, a high-quality product with high Pol, low color, and low ash content was obtained when the permeate juice was concentrated and crystallized to form raw sugar. However, further studies are necessary to investigate the methods of processing retentate for the recovery of sucrose and handling of wastewater generated during membrane cleaning, as well as the service life of the membrane.