Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation
This research aimed to develop a new method for clean utilization and treatment of landfill leachate and solid waste weathered coal. Landfill leachate and weathered coal were adopted for combined anaerobic fermentation for methane production. The characteristics of microbial community, mechanism of...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651324002264 |
| _version_ | 1797261836064653312 |
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| author | Bo Song Hongyu Guo Zhenhong Chen Qiang Xu Linyong Chen Xiujia Bai |
| author_facet | Bo Song Hongyu Guo Zhenhong Chen Qiang Xu Linyong Chen Xiujia Bai |
| author_sort | Bo Song |
| collection | DOAJ |
| description | This research aimed to develop a new method for clean utilization and treatment of landfill leachate and solid waste weathered coal. Landfill leachate and weathered coal were adopted for combined anaerobic fermentation for methane production. The characteristics of microbial community, mechanism of biological methane production, and utilization characteristics of fermentation broth and solid residue for co-fermentation were analyzed through metagenomics, soluble organic matter detection and thermogravimetric (TG) analysis. The obtained results revealed that combined anaerobic fermentation increased methane production by 80.1%. Syntrophomonas, Salipiger, Methanosaeta and Methanothrix were highly correlated. Gene abundances of 2-oxoacid ferredoxin oxidoreductase and enolase were increased in methane conversion pathway mainly by acetic acid. Pyruvate-ferroredoxin oxidoreductase, 2-oxoglutarate synthase and succinate dehydrogenase acetate synthase intensified electron transfer pathways among microorganisms. Fulvic acid, tyrosine and tryptophan contents were high in fermentation broth. Volatile decomposition temperature, ignition point and residual char combustion temperature of residual coal were decreased and combustion was more stable. The obtained results showed that the co-fermentation of landfill leachate and weathered coal improved biological methane gas production, degraded weathered coal and improved combustion performance, which provided a new idea for weathered coal clean utilization. |
| first_indexed | 2024-03-07T20:05:56Z |
| format | Article |
| id | doaj.art-52bf597f30974a7598296227902492cc |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-04-24T23:47:32Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-52bf597f30974a7598296227902492cc2024-03-15T04:42:52ZengElsevierEcotoxicology and Environmental Safety0147-65132024-03-01273116151Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentationBo Song0Hongyu Guo1Zhenhong Chen2Qiang Xu3Linyong Chen4Xiujia Bai5School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454000, China; Corresponding author at: School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000 China.Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaGeneral Prospecting Institute of China National Administration of Coal Geology, Beijing 100039,ChinaCollege of Computer Science and Technology, Henan Polytechnic University, Jiaozuo 454000, ChinaGeneral Prospecting Institute of China National Administration of Coal Geology, Beijing 100039,ChinaThis research aimed to develop a new method for clean utilization and treatment of landfill leachate and solid waste weathered coal. Landfill leachate and weathered coal were adopted for combined anaerobic fermentation for methane production. The characteristics of microbial community, mechanism of biological methane production, and utilization characteristics of fermentation broth and solid residue for co-fermentation were analyzed through metagenomics, soluble organic matter detection and thermogravimetric (TG) analysis. The obtained results revealed that combined anaerobic fermentation increased methane production by 80.1%. Syntrophomonas, Salipiger, Methanosaeta and Methanothrix were highly correlated. Gene abundances of 2-oxoacid ferredoxin oxidoreductase and enolase were increased in methane conversion pathway mainly by acetic acid. Pyruvate-ferroredoxin oxidoreductase, 2-oxoglutarate synthase and succinate dehydrogenase acetate synthase intensified electron transfer pathways among microorganisms. Fulvic acid, tyrosine and tryptophan contents were high in fermentation broth. Volatile decomposition temperature, ignition point and residual char combustion temperature of residual coal were decreased and combustion was more stable. The obtained results showed that the co-fermentation of landfill leachate and weathered coal improved biological methane gas production, degraded weathered coal and improved combustion performance, which provided a new idea for weathered coal clean utilization.http://www.sciencedirect.com/science/article/pii/S0147651324002264Weathered coalLandfill leachateCo-fermentationElectron transferBiological methaneCombustion performance |
| spellingShingle | Bo Song Hongyu Guo Zhenhong Chen Qiang Xu Linyong Chen Xiujia Bai Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation Ecotoxicology and Environmental Safety Weathered coal Landfill leachate Co-fermentation Electron transfer Biological methane Combustion performance |
| title | Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation |
| title_full | Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation |
| title_fullStr | Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation |
| title_full_unstemmed | Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation |
| title_short | Analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation |
| title_sort | analysis of landfill leachate promoting efficient application of weathered coal anaerobic fermentation |
| topic | Weathered coal Landfill leachate Co-fermentation Electron transfer Biological methane Combustion performance |
| url | http://www.sciencedirect.com/science/article/pii/S0147651324002264 |
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