Improving Biomethanation of Chicken Manure by Co-Digestion with Ethanol Plant Effluent

DC Field Value Language Cheong, Dae-Yeol ko Harvey, Jeffrey Todd ko Kim, Jinsu ko Lee, Changsoo ko 2020-01-09T09:18:35Z - 2020-01-02 ko 2019-12 ko
dc.identifier.issn 1661-7827 ko
dc.identifier.uri -
dc.description.abstract As the global production of chicken manure has steadily increased, its proper management has become a challenging issue. This study examined process effluent from a bioethanol plant as a co-substrate for efficient anaerobic digestion of chicken manure. An anaerobic continuous reactor was operated in mono- and co-digestion modes by adding increasing amounts of the ethanol plant effluent (0%, 10%, and 20% (v/v) of chicken manure). Methanogenic performance improved significantly in terms of both methane production rate and yield (by up to 66% and 36%, respectively), with an increase in organic loading rate over the experimental phases. Correspondingly, the specific methanogenic activity was significantly higher in the co-digestion sludge than in the mono-digestion sludge. The reactor did not suffer any apparent process imbalance, ammonia inhibition, or nutrient limitation throughout the experiment, with the removal of volatile solids being stably maintained (56.3–58.9%). The amount of ethanol plant effluent appears to directly affect the rate of acidification, and its addition at ≥20% (v/v) to chicken manure needs to be avoided to maintain a stable pH. The overall results suggest that anerobic co-digestion with ethanol plant effluent may provide a practical means for the stable treatment and valorization of chicken manure. ko
dc.language 영어 ko
dc.publisher MDPI ko
dc.title Improving Biomethanation of Chicken Manure by Co-Digestion with Ethanol Plant Effluent ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85076465977 ko
dc.identifier.wosid 000507312700143 ko
dc.type.rims ART ko
dc.identifier.doi 10.3390/ijerph16245023 ko
dc.identifier.url ko
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