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Study on the mechanism and prevention of membrane foulingduring refining SanLiangBan Liquor

Authors： HUANG Min-yan1,2, PAN Lin-mei1, FU Ting-ming1, PAN Yong-lan1, GUO Li-wei1*

Units： 1.Key Laboratory of Separation Engineering for Chinese Medicine Compound, Nanjing University of Traditional Chinese Medicine, Nanjing 210029, China; 2. Department of Pharmacy, The First People’s Hospital of Nantong, Nantong 226001, China

KeyWords： ZrO2 membrane; SanLiangBan Liquor; membrane fouling; ultrasound

ClassificationCode：

year,volume(issue):pagination： 2012,32(4):98-101

Abstract：

Resistance distribution, removal of polymer, and physical-chemical parameters were measured before and after microfiltration by organic membranes with different pore size. At the same time, existence or location of pollutants and the laws of formation were analyzed. Ultrasound on membrane microfiltration was applied to explore effective means of preventing membrane fouling. The results showed that 0.2μmZrO2 had a lower degree of membrane fouling. For both pore membranes, the main sources of pollution were reflected in the pore blocking layer. The biggest difference was the adsorption resistance which 0.05μm ZrO2 had about double adsorption resistance as much as 0.2μm ZrO2.At the same time, it was found 0.2μm and 0.05μm ZrO2 membranes presented a significant function on removal of pectin and starch. ZrO2 membrane had a better refining result on clarificating SanLiangBan Liquor which rendered light brown yellow. The flavor was more mellow and refreshing. Efficacy components of SanLiangBan Liquor was changed little before and after microfiltration. The most significant improvement was turbidity which dropped from 49.0NTU to 2.83NTU before and after microfiltration by 0.2μm ZrO2 membrane. However, it showed minor fluctuations on the value of pH, viscosity and conductivity. It was found that ultrasonic could effectively improve the membrane permeate flux that its increase rate of 0.2μm ZrO2 membrane was 36.3%.

Funds：

国家自然科学基金项目（30572374，30873449）；国家科技部“十一五”支撑项目（2006BAI06A04-04）

AuthorIntro：

黄敏燕（1985-），女，江苏南通人，硕士（现工作单位：南通市第一人民医院），从事中药膜分离技术研究.E-mail：huangminyan616@163.com。*通讯联系人, E-mail：guoliwei815@yahoo.com.cn

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