Succession of the bacterial community and functional characteristics during continuous thermophilic composting of dairy manure amended with recycled ceramsite
| Autor: | Rong-Bo Guo, Xu Li, Yu-Zhong Zhao, Xiangqian Li, Mingyi Lu, Xiaoshuang Shi, Hui Peng |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Environmental Engineering Firmicutes Bioengineering 010501 environmental sciences 01 natural sciences Actinobacteria Soil 010608 biotechnology Organic matter Recycling Food science Waste Management and Disposal 0105 earth and related environmental sciences chemistry.chemical_classification Total organic carbon biology Bacteria Renewable Energy Sustainability and the Environment Thermophile Composting General Medicine biology.organism_classification Manure Carbon Chloroflexi (class) chemistry Germination bacteria |
| Zdroj: | Bioresource technology. 294 |
| ISSN: | 1873-2976 |
| Popis: | This study aimed to investigate variations of bacterial community and functional characteristics during the continuous thermophilic composting (CTC). Also their differences were discussed when amended with ceramsite and recycled ceramsite as the porous bulking agent. Results showed that the bacterial community shifted greatly and bacterial diversity increased as the CTC proceeded. Firmicutes and Chloroflexi was one of the major phyla at the active and late phase respectively. While Actinobacteria was the dominant phyla during the whole CTC. With the addition of ceramsite and recycled ceramsite, no significant difference was found of the overall bacterial variation trends. But the major phyla of Chloroflexi and Actinobacteria and major genes related to amino acid metabolism and carbohydrate metabolism increased significantly, especially when the recycled ceramsite was added. Redundancy analysis indicated that the succession of bacterial community was tightly related with the pH, water soluble organic carbon, NH4+-N, organic matter and germination index. |
| Databáze: | OpenAIRE |
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