The performance efficiency of bioaugmentation to prevent anaerobic digestion failure from ammonia and propionate inhibition
The performance efficiency of bioaugmentation to prevent anaerobic digestion failure from ammonia and propionate inhibition
This study aims to investigate the effect of bioaugmentation with enriched methanogenic propionate degrading microbial consortia on propionate fermentation under ammonia stress from total ammonia nitrogen concentration (TAN) of 3.0 g N L-1. Results demonstrated that bioaugmentation could prevent unstable digestion against further deterioration. After 45 days of 1 dosage (0.3 g dry cell weight L-1 d-1, DCW L-1 d-1) of bioaugmentation, the average volumetric methane production (VMP), methane recovery rate and propionic acid (HPr) degradation rate was enhanced by 70 mL L-1 d-1, 21% and 51%, respectively. In contrast, the non-bioaugmentation reactor almost failed. Routine addition of a double dosage (0.6 g DCW L-1 d-1) of bioaugmentaion culture was able to effectively recover the failing digester. The results of FISH suggested that the populations of Methanosaetaceae increased significantly, which could be a main contributor for the positive effect on methane production.
94-100
Li, Ying
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Zhang, Yue
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Sun, Yongming
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Wu, Shubiao
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Kong, Xiaoying
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Yuan, Zhenhong
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Dong, Renjie
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May 2017
Li, Ying
03dfe199-85bf-4208-90fa-ff0bd4e62bf0
Zhang, Yue
69b11d32-d555-46e4-a333-88eee4628ae7
Sun, Yongming
660cde8a-0f71-47d8-819f-4d1313f76262
Wu, Shubiao
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Kong, Xiaoying
c4eed99c-92d0-4eab-aa63-d28864a5ccb1
Yuan, Zhenhong
ab9da306-9421-489e-981a-fefdd8dddd9d
Dong, Renjie
1daf9b0e-bc61-4918-b19c-169d1a1f9ba1
Li, Ying, Zhang, Yue, Sun, Yongming, Wu, Shubiao, Kong, Xiaoying, Yuan, Zhenhong and Dong, Renjie
(2017)
The performance efficiency of bioaugmentation to prevent anaerobic digestion failure from ammonia and propionate inhibition.
Bioresource Technology, 231, .
(doi:10.1016/j.biortech.2017.01.068).
Abstract
This study aims to investigate the effect of bioaugmentation with enriched methanogenic propionate degrading microbial consortia on propionate fermentation under ammonia stress from total ammonia nitrogen concentration (TAN) of 3.0 g N L-1. Results demonstrated that bioaugmentation could prevent unstable digestion against further deterioration. After 45 days of 1 dosage (0.3 g dry cell weight L-1 d-1, DCW L-1 d-1) of bioaugmentation, the average volumetric methane production (VMP), methane recovery rate and propionic acid (HPr) degradation rate was enhanced by 70 mL L-1 d-1, 21% and 51%, respectively. In contrast, the non-bioaugmentation reactor almost failed. Routine addition of a double dosage (0.6 g DCW L-1 d-1) of bioaugmentaion culture was able to effectively recover the failing digester. The results of FISH suggested that the populations of Methanosaetaceae increased significantly, which could be a main contributor for the positive effect on methane production.
Text
The performance efficiency of bioaugmentation to prevent anaerobic digestion failure from ammonia and propionate inhibition.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 31 January 2017
e-pub ahead of print date: 3 February 2017
Published date: May 2017
Additional Information:
Funded by: China Science and Technology Service Network Initiative (KFJ-Ew-STS-138)
Organisations:
Water & Environmental Engineering Group
Identifiers
Local EPrints ID: 405657
URI: http://eprints.soton.ac.uk/id/eprint/405657
ISSN: 0960-8524
PURE UUID: 46ec398e-6662-4aee-a920-d633364b9697
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Date deposited: 10 Feb 2017 11:25
Last modified: 16 Mar 2024 03:31
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Contributors
Author:
Ying Li
Author:
Yongming Sun
Author:
Shubiao Wu
Author:
Xiaoying Kong
Author:
Zhenhong Yuan
Author:
Renjie Dong
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