浓醪酒糟膜分离滤液全回流工艺的研究  

Study on Full Filtrate Recycling Process of High-gravity Ethanol Fermentation by Membrane Filtration

作　　者：方亚叶[1] 石贵阳[1] 章克昌[1] 

机构地区：[1]江南大学生物工程学院

出　　处：《酿酒》2004年第2期44-47,共4页Liquor Making

基　　金：国家"十五"攻关项目

摘　　要：工艺选用陶瓷膜对浓醪酒糟进行固液分离 ,滤液全回流返回生产系统 ,在实验的十三批次发酵过程中分析了固形物含量、钠离子浓度、氮含量、总糖和还原糖含量等的变化 ,在滤液回用 2～ 4批次后都趋于动态平衡 ,实验结果还得到了稳定的酒精度 (15%以上 ) ,表明滤液回用对发酵结果没有明显的抑制作用 。The distillage from high-gravity ethanol fermentation was filtrated by ceramic membrane, and the filtrate was used as processing water in ethanol production. The concentrations of sodium ion, solid, nitrogen and the residual sugar was analyzed in this paper, and they tended to a stability value after 2～4 times filtrate recycling. What's more, similar ethanol yields (beyond 15%) was obtained in the experiments. It shows that the inhibition of full filtrate recycling to ethanol production isn't obvious. Thus a feasible method was presented for ethanol fermentation industry.

关 键 词：陶瓷膜 浓醪酒糟 固液分离 酒精 滤液回用 清洁生产 

分 类 号：TS262.2[轻工技术与工程—发酵工程] X383[轻工技术与工程—食品科学与工程]