In-situ carboxylate recovery and simultaneous pH control with tailor-configured bipolar membrane electrodialysis during continuous mixed culture fermentation

被引：55

作者：

Arslan, D. ^{[1
,2
]}

Zhang, Y. ^{[2
,3
]}

Steinbusch, K. J. J. ^{[1
,4
]}

Diels, L. ^{[2
]}

Hamelers, H. V. M. ^{[1
]}

Buisman, C. J. N. ^{[1
]}

De Wever, H. ^{[2
]}

机构：

[1] Wageningen Univ, Subdept Environm Technol, BornseWeilanden 9, NL-6708 HD Wageningen, Netherlands

[2] VITO Flemish Inst Technol Res Separat & Convers T, Boeretang 200, B-2400 Mol, Belgium

[3] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Waste Valorizat & Water Reuse Grp, Songling Rd 189, Qingdao 266101, Peoples R China

[4] TUDelft, Delft Adv Biorenewables, Julianalaan 67, NL-2628 BC Delft, Netherlands

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2017年 / 175卷

关键词：

Fermentation; ISPR; Bipolar membrane; Electrodialysis; Short chain carboxylates; LACTIC-ACID FERMENTATION; ACETIC-ACID; ORGANIC-ACIDS; SEPARATION; COMBINATION; ETHANOL; CARBON; ION;

D O I：

10.1016/j.seppur.2016.11.032

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Anaerobic fermentation of organic waste streams by mixed culture generates a mixture of short chain carboxylic acids. To avoid inhibitory effects of the acids or their consumption in internal conversion reactions in the mixed culture environment, in-situ recovery of acids can be beneficial. In this study, electrodialysis with bipolar membranes (EDBM) was applied to a mixed culture fermentation on organic waste streams using a novel EDBM stack with "direct contact" operation mode. We could demonstrate simultaneous recovery of carboxylates from the fermenter by the EDBM stack while in-situ generation and transport of hydroxyl ions to the fermenter allowed direct pH control. Experiments showed productivity increase after EDBM coupling to the fermenter, and complete elimination of external base consumption. It was also observed that EDBM was able to drive the mixed culture fermentation towards acetate and propionate type of carboxylates. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：27 / 35

页数：9

共 37 条

[11] Electrodialysis as a useful technique for lactic acid separation from a model solution and a fermentation broth [J].