Application of vacuum membrane distillation for concentration of organic solutions

被引：9

作者：

Gryta, Marek ^{[1
]}

Waszak, Marta ^{[1
]}

机构：

[1] West Pomeranian Univ Technol, Inst Inorgan Technol & Environm Engn, Ul Pulaskiego 10, PL-70322 Szczecin, Poland

来源：

CHEMICAL PAPERS | 2016年 / 70卷 / 06期

关键词：

acuum membrane distillation; fermentation broth; glycerol; 1,3-propanediol; FERMENTATION; 1,3-PROPANEDIOL; NANOFILTRATION; SEPARATION; GLYCEROL; DESALINATION; XYLOSE; BROTH;

D O I：

10.1515/chempap-2016-0002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Vacuum membrane distillation was used to concentrate organic solutions containing mainly 1,3-propanediol, ethanol and carboxylic acids. The studied solutions were permeates obtained from nanofiltration process applied for the separation of broths from the fermentation of glycerol with the Citrobacter freundii bacteria. The presence of organic solutes decreased the surface tension of permeates to the value of 47 mN m(-1). However, the pores inside the used polypropylene membranes were not wetted by the post-fermentation solutions, and they were concentrated to over five-fold. It was shown that vacuum membrane distillation has over twice higher thermal efficiency compared to that obtained by direct contact membrane distillation. (C) 2016 Institute of Chemistry, Slovak Academy of Sciences

引用

页码：737 / 746

页数：10

共 30 条

[1] A comprehensive review of vacuum membrane distillation technique [J].