Lignite Improved the Quality of Composted Manure and Mitigated Emissions of Ammonia and Greenhouse Gases during Forced Aeration Composting
| Autor: | Deli Chen, Anthony J. Weatherley, Robert Impraim, Helen Suter, Trevor Coates |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Geography
Planning and Development Amendment TJ807-830 010501 environmental sciences Management Monitoring Policy and Law engineering.material TD194-195 01 natural sciences Methane Renewable energy sources chemistry.chemical_compound greenhouse gas emission Organic matter manure composting GE1-350 0105 earth and related environmental sciences chemistry.chemical_classification nitrogen loss Environmental effects of industries and plants Renewable Energy Sustainability and the Environment Compost ammonia emission 04 agricultural and veterinary sciences Pulp and paper industry Manure Environmental sciences lignite chemistry Greenhouse gas Carbon dioxide 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Environmental science Aeration |
| Zdroj: | Sustainability, Vol 12, Iss 10528, p 10528 (2020) Sustainability Volume 12 Issue 24 |
| ISSN: | 2071-1050 |
| Popis: | Lignite amendment of livestock manure is considered a viable ammonia (NH3) emission mitigation technique. However, its impact on the subsequent composting of the manure has not been well studied. This work compared changes in biochemical parameters (e.g., organic matter loss and nitrogen (N) transformation) and also the emissions of NH3 and greenhouse gases (GHGs) between lignite-amended and unamended cattle manure during forced aeration composting. Amending manure with lignite did not alter the time to compost stability despite delaying the onset of the thermophilic temperatures. Lignite treatments retained N in the manure by suppressing NH3 loss by 35&ndash 54%, resulting in lignite-amended manure composts having 10&ndash 19% more total N than the unamended compost. Relative to manure only, lignites reduced GHG emissions over the composting period: nitrous oxide (N2O) (58&ndash 72%), carbon dioxide (CO2) (12&ndash 23%) and methane (CH4) (52&ndash 59%). Low levels of CH4 and N2O emissions were observed and this was attributed to the continuous forced aeration system used in the composting. Lignite addition also improved the germination index of the final compost: 90&ndash 113% compared to 71% for manure only. These findings suggest that lignite amendment of manure has the potential to improve the quality of the final compost whilst mitigating the environmental release of NH3 and GHGs. |
| Databáze: | OpenAIRE |
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