Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Impact of biochar on the anaerobic digestion of citrus peel waste
AU - Fagohungbe, Michael O.
AU - Herbert, Ben Michael John
AU - Hurst, Lois
AU - Li, Hong
AU - Usmani, Shams Qamar
AU - Semple, Kirk Taylor
N1 - This is the author’s version of a work that was accepted for publication in Bioresource Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bioresource Technology, 216, 2016 DOI: 10.1016/j.biortech.2016.04.106
PY - 2016/9
Y1 - 2016/9
N2 - In this study, the impact of different types of biochar and biochar ratios on the anaerobic digestion of citrus peel waste was investigated. Citrus peel has an inhibitory effect on anaerobic digestion. The presence of biochar had two effects: a reduction in the length of the lag phase and greater production of methane relative to citrus peel waste only incubations. The microbial lag phases decreased with increase in citrus peel to biochar ratios, with 2:1 having the longest lag phase of 9.4 days and 1:3, the shortest, with the value of 7.5 days. The cumulative methane production in incubations containing biochar and citrus peel ranged from 163.9 – 185.0 ml CH4 gVS-1, while citrus peel only produced 165.9 ml CH4 gVS-1. Examination of the biochar material revealed colonies of putative methanogens. The synergy of D-limonene adsorption and microbial immobilisation by biochar appears to improve the performance of anaerobic digestion.
AB - In this study, the impact of different types of biochar and biochar ratios on the anaerobic digestion of citrus peel waste was investigated. Citrus peel has an inhibitory effect on anaerobic digestion. The presence of biochar had two effects: a reduction in the length of the lag phase and greater production of methane relative to citrus peel waste only incubations. The microbial lag phases decreased with increase in citrus peel to biochar ratios, with 2:1 having the longest lag phase of 9.4 days and 1:3, the shortest, with the value of 7.5 days. The cumulative methane production in incubations containing biochar and citrus peel ranged from 163.9 – 185.0 ml CH4 gVS-1, while citrus peel only produced 165.9 ml CH4 gVS-1. Examination of the biochar material revealed colonies of putative methanogens. The synergy of D-limonene adsorption and microbial immobilisation by biochar appears to improve the performance of anaerobic digestion.
KW - Anaerobic digestion
KW - biochar
KW - citrus peel waste
KW - lag phase
KW - methane production
U2 - 10.1016/j.biortech.2016.04.106
DO - 10.1016/j.biortech.2016.04.106
M3 - Journal article
VL - 216
SP - 142
EP - 149
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -