卧式加压溶气泡沫分离水溶液中低含量蛋白质  

Removal of Low Concentration Protein from Water Using Horizontal Pressure Air-dissolving Foam Separation

作　　者：董红星[1] 岳国君 刘文信 曾庆江[1] 丁乾坤[1] 张进[1] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001 [2]中粮生化能源(肇东)有限公司,黑龙江肇东151100

出　　处：《过程工程学报》2010年第3期493-497,共5页The Chinese Journal of Process Engineering

基　　金：黑龙江省自然科学基金资助项目(编号:B2004-06;E-200808)

摘　　要：以大豆蛋白为目标蛋白,蛋白水溶液为模拟体系,采用卧式加压溶气泡沫分离装置考察了原料液流量、pH值、溶气水流量等因素对蛋白质脱除率的影响,并根据其分子结构特征从过程工程视角分析了以卧式泡沫分离装置由水中去除的优势.结果表明,最佳操作条件为:原料液浓度8mg/L,原料液流量50L/h,pH值4.5,溶气水流量275L/h,该条件下水中蛋白质的脱除率可达90.5%.The foam separation process was conducted with a stimulated system using soya protein as target protein, and horizontal foam separation as device. The effects of flow rate of raw material, pH value, flow rate of dissolved gas water on the removal efficiency of protein were investigated. And the advantage of horizontal foam separation device for removing protein in water was analyzed from the process engineering perspective according to protein structure. The results revealed that under the optimal conditions the concentration of the raw material at 8 mg/L, flow rate of raw material 50 L/h, pH value 4.5, and flow rate of dissolved gas water 275 L/h. Under these conditions, the removal rate can reach up to 90.5%.

关 键 词：卧式 加压溶气 泡沫分离 蛋白质 脱除率 

分 类 号：TQ028.8[化学工程]