The Influence of Biochar Addition on Chicken Manure Composting and Associated Methane and Carbon Dioxide Emissions
| Autor: | Meng Wang, Xiaotang Ju, Baozhu Yang, Wenqiao Yuan, Xingyong Jia |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Environmental Engineering
Materials science lcsh:Biotechnology Amendment Turning frequency Bioengineering 010501 environmental sciences engineering.material 01 natural sciences Methane chemistry.chemical_compound Animal science CH4/CO2 emissions lcsh:TP248.13-248.65 Biochar Charcoal Waste Management and Disposal 0105 earth and related environmental sciences Compost Composting 04 agricultural and veterinary sciences Manure Chicken manure Agronomy chemistry visual_art Carbon dioxide 040103 agronomy & agriculture visual_art.visual_art_medium engineering 0401 agriculture forestry and fisheries |
| Zdroj: | BioResources, Vol 11, Iss 2, Pp 5255-5264 (2016) |
| ISSN: | 1930-2126 |
| Popis: | The effect of biochar addition and turning frequency was examined relative to biochar-chicken manure co-composting and its associated methane (CH4) and carbon dioxide (CO2) emissions. The results demonstrated that biochar addition was more effective in accelerating the composting process, which was indicated by a 5.2% increase in peak pile temperature and a 148% increase in peak CO2 emission with 20% biochar amended-compost, compared with the control that had no biochar. The compost pH increased and moisture content decreased significantly over the whole course of composting with the biochar amendment. The addition of 20% biochar also resulted in a 54.9% decrease in peak CH4 emission compared with the control. More frequent turning (daily vs. every 3 or 7 days) accelerated the composting process and reduced the CH4 emission. |
| Databáze: | OpenAIRE |
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