LAPSE:2019.0983
Published Article
LAPSE:2019.0983
Enhanced Anaerobic Mixed Culture Fermentation with Anion-Exchange Resin for Caproate Production
Jiangnan Yu, Jialin Liao, Zhenxing Huang, Peng Wu, Mingxing Zhao, Chunmei Liu, Wenquan Ruan
September 5, 2019
The bioproduction of caproate from organic waste by anaerobic mixed culture is a very attractive technology for upgrading low-grade biomass to a high-value resource. However, the caproate production process is markedly restricted by the feedback inhibition of caproate. In this study, four types of anion-exchange resin were investigated for their enhancing capability in caproate fermentation of anaerobic mixed culture. The strong base anion-exchange resin D201 showed the highest adsorption capacity (62 mg/g), selectivity (7.50), and desorption efficiency (88.2%) for caproate among the test resins. Subsequently, the optimal desorption temperature and NaOH concentration of eluent for D201 were determined. The adsorption and desorption efficiency of D201 remained stable during eight rounds of the adsorption−desorption cycle, indicating a satisfactory reusability of D201. Finally, performances of caproate fermentation with and without resin adsorption for carboxylate were evaluated. The results demonstrated that the final concentration of caproate was improved from 12.43 ± 0.29 g/L (without adsorption) to 17.30 ± 0.13 g/L (with adsorption) and the maximum caproate production rate was improved from 0.60 ± 0.01 g/L/d to 2.03 ± 0.02 g/L/d. In the group with adsorption, the cumulative caproate production was increased to 29.10 ± 0.33 g/L broth, which was 134% higher than that of the control group. Therefore, this study provides effective approaches to enhance caproate production.
Keywords
adsorption process, anaerobic mixed culture, caproate fermentation, enhanced performance
Subject
Suggested Citation
Yu J, Liao J, Huang Z, Wu P, Zhao M, Liu C, Ruan W. Enhanced Anaerobic Mixed Culture Fermentation with Anion-Exchange Resin for Caproate Production. (2019). LAPSE:2019.0983
Author Affiliations
Yu J: Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
Liao J: Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
Huang Z: Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215011, China; Jiangsu E
Wu P: School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Zhao M: Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215011, China
Liu C: Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
Ruan W: Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215011, China; Jiangsu E
[Login] to see author email addresses.
Journal Name
Processes
Volume
7
Issue
7
Article Number
E404
Year
2019
Publication Date
2019-07-01
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr7070404, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2019.0983
This Record
External Link

doi:10.3390/pr7070404
Publisher Version
Download
Files
[Download 1v1.pdf] (1.2 MB)
Sep 5, 2019
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
483
Version History
[v1] (Original Submission)
Sep 5, 2019
 
Verified by curator on
Sep 5, 2019
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2019.0983
 
Original Submitter
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version