Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/137588
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Type: | Journal article |
Title: | Coupling a biochar filter to a leach bed reactor for anaerobic digestion of chicken litter |
Author: | Collins, B.A. Birzer, C.H. Kidd, S.P. Hall, T. Medwell, P.R. |
Citation: | Bioresource Technology Reports, 2023; 21:101362-1-101362-12 |
Publisher: | Elsevier |
Issue Date: | 2023 |
ISSN: | 2589-014X 2589-014X |
Statement of Responsibility: | Ben A. Collins, Cristian H. Birzer, Stephen P. Kidd, Tony Hall, Paul R. Medwell |
Abstract: | In this study, coupling a biochar-packed anaerobic filter (AF) to a batch leach bed reactor (LBR) is investigated as a pragmatic method for biochar application to enhance high-solids anaerobic digestion of chicken litter. Recirculating leachate through a biochar filter reduced solid retention time by 45 % compared with a batch system without recirculation. The key benefit of biochar over inert filter media was the capability to reduce hydrogen sulfide production by 37 % overall; 25 % in the LBR, and 93 % in the AF. No significant differences in methane yield were observed. Biogas produced in the biochar AF was of higher quality with a maximum hydrogen sulfide content of 188 ppm and peak methane content of 73 %. However, majority of the biogas was produced in the LBR due to poor phase separation. Further research is required to increase biogas production in the AF and/or reduce hydrogen sulfide production in the LBR. |
Keywords: | Anaerobic digestion; Biochar; Chicken litter; Biogas; Hydrogen sulfide |
Rights: | © 2023 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.biteb.2023.101362 |
Published version: | http://dx.doi.org/10.1016/j.biteb.2023.101362 |
Appears in Collections: | Mechanical Engineering publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_137588_embargo_AM.pdf Restricted Access | Embargo ends February 2025. Contains supplementary material. | 2.45 MB | Adobe PDF | View/Open |
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