Determination of landfill gas generation potential from lignocellulose biomass contents of municipal solid waste
| Autor: | Lakshmikanthan Periyaswami, Sunil Kumar, Ashutosh Kumar Pandey, Digambar Chavan, Deval Singh |
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| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Municipal solid waste 010504 meteorology & atmospheric sciences Biomass Fraction (chemistry) 010501 environmental sciences Solid Waste 01 natural sciences Lignin Methane chemistry.chemical_compound Environmental Chemistry Hemicellulose Cellulose Waste Management and Disposal 0105 earth and related environmental sciences Waste management Biodegradable waste Pollution Refuse Disposal Waste Disposal Facilities Landfill gas chemistry Environmental science Gases |
| Zdroj: | The Science of the total environment. 785 |
| ISSN: | 1879-1026 |
| Popis: | The presence of heat, methane (CH4) and oxygen in landfill sub-surface causes initiation of spontaneous waste ignition posing severe environmental impacts. A municipal solid waste (MSW) reactor (trough) was designed to monitor landfill gases (LFGs) i.e., CH4 and CO2 and its potential from different waste categories (synthetic waste, fresh waste, 3-month, 6-month, 3-year and 5-year-old waste) collected from open MSW dumpsite. The quantity of cellulose (C), hemicellulose (H) and lignin (L) contents (C + H: L) present in organic waste fraction of each waste category was determined. Results showed that fresh waste which has higher ratio of C + H: L is responsible for maximum CH4 and CO2 generation i.e., 31,660 and 46,078 ml/g of volatile solid, respectively. The ratio of C + H: L observed in fresh waste, 3-month, 6-month, 3-year and 5-year-old waste was 2.62, 1.70, 1.32, 1.21 and 1, respectively. The study also showed that LFG generation is directly proportional to lignocellulose biomass contents present in MSW. Artificial neural network (ANN) modelling was used for the cross validation of CH4 yield (valuable product) which showed ±4% error between experimental and predicted data. |
| Databáze: | OpenAIRE |
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