Co-generation of acetone-butanol-ethanol and lipids by a sequential fermentation using Clostridia acetobutylicum and Rhodotorula glutinis, spaced-out by an ex-situ pervaporation step
文献类型：期刊论文
| 作者 | Zhang, Changwei; Si, Zhihao; Chen, Bo; Chen, Changjing; Chen, Huidong; Ren, Wenqiang; Cheng, Shikun; Li, Shufeng; Cai, Di; Qin, Peiyong |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2021-02-20 |
| 卷号 | 285页码:- |
| 关键词 | Acetone-butanol-ethanol Microbial lipid Pervaporation Broth recycling Fermentation |
| ISSN号 | 0959-6526 |
| 英文摘要 | Large amounts of effluent discharge and a costly wastewater treatment hinder the scale-up of the lignocellulosic acetone-butanol-ethanol (ABE) fermentation process. By recycling the broth after solvents removal and using it in the subsequent cycles of biomass hydrolysis and fermentation, the overall amount of effluent can be reduced. However, the ABE production is severely inhibited by the accumulated acids and other toxic by-products when reusing the cycled streams. In this study, a pervaporation assisted sequential fermentation was performed. The ABE liquor recovered after batch fermentation and ex situ pervaporation was used as the buffer for corn stover pulp hydrolysis and the following microbial lipids fermentation. In microbial lipids fermentation stage, toxic acid by-products remained in the liquor can be co-utilized as a substrate. The acids eliminated post-harvested broth was further cycled as the buffer for pulp hydrolysis and ABE fermentation. As a result, ABE yield of 0.349 g/ g and concentration of 14.40 g/L were achieved after 3 cycles of operation, which show only 3.86% and 14.98% reduction compared to those of the initial cycle. Remarkably, the effluent discharge was reduced by 92.20% after applying the hybrid two-stage sequential fermentation. Meanwhile, 8.20 g/L of microbial lipids can be co-generated. The novel process offers an environmentally friendly strategy for the co-production of ABE and microbial lipids from lignocelluloses under the concept of biorefinery. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45919]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China 2.Beijing Univ Chem Technol, Natl Energy R&D Ctr Biorefinery, Beijing 100029, Peoples R China 3.Univ Glasgow, Syst Power & Energy Res Div, James Watts Sch Engn, Coll Sci & Engn, Glasgow G12 8QQ, Lanark, Scotland 4.Beijing Univ Chem Technol, Ctr Proc Simulat & Optimizat, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 6.Univ Sci & Technol Beijing, Beijing Key Lab Resource Oriented Treatment Ind P, Beijing 1 |
| 推荐引用方式 GB/T 7714 | Zhang, Changwei,Si, Zhihao,Chen, Bo,et al. Co-generation of acetone-butanol-ethanol and lipids by a sequential fermentation using Clostridia acetobutylicum and Rhodotorula glutinis, spaced-out by an ex-situ pervaporation step[J]. JOURNAL OF CLEANER PRODUCTION,2021,285:-. |
| APA | Zhang, Changwei.,Si, Zhihao.,Chen, Bo.,Chen, Changjing.,Chen, Huidong.,...&Qin, Peiyong.(2021).Co-generation of acetone-butanol-ethanol and lipids by a sequential fermentation using Clostridia acetobutylicum and Rhodotorula glutinis, spaced-out by an ex-situ pervaporation step.JOURNAL OF CLEANER PRODUCTION,285,-. |
| MLA | Zhang, Changwei,et al."Co-generation of acetone-butanol-ethanol and lipids by a sequential fermentation using Clostridia acetobutylicum and Rhodotorula glutinis, spaced-out by an ex-situ pervaporation step".JOURNAL OF CLEANER PRODUCTION 285(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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