Enhanced methane production of vinegar residue by response surface methodology (RSM)
Abstract As the by-product of the vinegar production process, a large number of vinegar residue has been abandoned and caused a serious environmental pollution. Anaerobic digestion has been proved to be able to dispose and convert vinegar residue into bioenergy but still need to improve the efficien...
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doaj-a9a323bc7534432282f1c1f52f7442d52020-11-24T21:39:45ZengSpringerOpenAMB Express2191-08552017-05-01711810.1186/s13568-017-0392-3Enhanced methane production of vinegar residue by response surface methodology (RSM)Jiayu Feng0Jiyu Zhang1Jiafu Zhang2Yanfeng He3Ruihong Zhang4Chang Chen5Guangqing Liu6College of Chemical Engineering, Beijing University of Chemical TechnologyCollege of Chemical Engineering, Beijing University of Chemical TechnologyCollege of Chemical Engineering, Beijing University of Chemical TechnologyCollege of Chemical Engineering, Beijing University of Chemical TechnologyDepartment of Biological and Agricultural Engineering, University of CaliforniaCollege of Chemical Engineering, Beijing University of Chemical TechnologyCollege of Chemical Engineering, Beijing University of Chemical TechnologyAbstract As the by-product of the vinegar production process, a large number of vinegar residue has been abandoned and caused a serious environmental pollution. Anaerobic digestion has been proved to be able to dispose and convert vinegar residue into bioenergy but still need to improve the efficiency. This study applied central composite design of response surface methodology to investigate the influences of feed to inoculum ratio, organic loading, and initial pH on methane production and optimize anaerobic digestion condition. The maximum methane yield of 203.91 mL gVS−1 and biodegradability of 46.99% were obtained at feed to inoculum ratio of 0.5, organic loading of 31.49 gVS L−1, and initial pH of 7.29, which was considered as the best condition. It has a very significant improvement of 69.48% for methane production and 52.02% for biodegradability compared with our previous study. Additionally, a high methane yield of 182.09 mL gVS−1 was obtained at feed to inoculum ratio of 1.5, organic loading of 46.22 gVS L−1, and initial pH of 7.32. And it is more appropriate to apply this condition in industrial application owing to the high feed to inoculum ratio and organic loading. Besides, a significant interaction was found between feed to inoculum ratio and organic loading. This study maximized the methane production of vinegar residue and made a good foundation for further study and future industrial application.http://link.springer.com/article/10.1186/s13568-017-0392-3Vinegar residueAnaerobic digestionMethane productionResponse surface methodologyEfficiencyInteraction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jiayu Feng Jiyu Zhang Jiafu Zhang Yanfeng He Ruihong Zhang Chang Chen Guangqing Liu |
spellingShingle |
Jiayu Feng Jiyu Zhang Jiafu Zhang Yanfeng He Ruihong Zhang Chang Chen Guangqing Liu Enhanced methane production of vinegar residue by response surface methodology (RSM) AMB Express Vinegar residue Anaerobic digestion Methane production Response surface methodology Efficiency Interaction |
author_facet |
Jiayu Feng Jiyu Zhang Jiafu Zhang Yanfeng He Ruihong Zhang Chang Chen Guangqing Liu |
author_sort |
Jiayu Feng |
title |
Enhanced methane production of vinegar residue by response surface methodology (RSM) |
title_short |
Enhanced methane production of vinegar residue by response surface methodology (RSM) |
title_full |
Enhanced methane production of vinegar residue by response surface methodology (RSM) |
title_fullStr |
Enhanced methane production of vinegar residue by response surface methodology (RSM) |
title_full_unstemmed |
Enhanced methane production of vinegar residue by response surface methodology (RSM) |
title_sort |
enhanced methane production of vinegar residue by response surface methodology (rsm) |
publisher |
SpringerOpen |
series |
AMB Express |
issn |
2191-0855 |
publishDate |
2017-05-01 |
description |
Abstract As the by-product of the vinegar production process, a large number of vinegar residue has been abandoned and caused a serious environmental pollution. Anaerobic digestion has been proved to be able to dispose and convert vinegar residue into bioenergy but still need to improve the efficiency. This study applied central composite design of response surface methodology to investigate the influences of feed to inoculum ratio, organic loading, and initial pH on methane production and optimize anaerobic digestion condition. The maximum methane yield of 203.91 mL gVS−1 and biodegradability of 46.99% were obtained at feed to inoculum ratio of 0.5, organic loading of 31.49 gVS L−1, and initial pH of 7.29, which was considered as the best condition. It has a very significant improvement of 69.48% for methane production and 52.02% for biodegradability compared with our previous study. Additionally, a high methane yield of 182.09 mL gVS−1 was obtained at feed to inoculum ratio of 1.5, organic loading of 46.22 gVS L−1, and initial pH of 7.32. And it is more appropriate to apply this condition in industrial application owing to the high feed to inoculum ratio and organic loading. Besides, a significant interaction was found between feed to inoculum ratio and organic loading. This study maximized the methane production of vinegar residue and made a good foundation for further study and future industrial application. |
topic |
Vinegar residue Anaerobic digestion Methane production Response surface methodology Efficiency Interaction |
url |
http://link.springer.com/article/10.1186/s13568-017-0392-3 |
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