Assessment of Gardening Wastes as a Co-Substrate for Diapers Degradation by the Fungus Pleurotus ostreatus
| Autor: | Sara Ojeda-Benítez, Xochitl Quecholac-Piña, Maribel Velasco-Pérez, Rosa María Espinosa-Valdemar, Gabriela Arango-Escorcia, Sonia Cabrera-Elizalde, Alethia Vázquez-Morillas, Perla X. Sotelo-Navarro |
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| Rok vydání: | 2015 |
| Předmět: |
lcsh:TJ807-830
Geography Planning and Development lcsh:Renewable energy sources Biomass biomass biodegradation cellulose biological efficiency Management Monitoring Policy and Law Toxicology chemistry.chemical_compound Dry weight jel:Q Cellulose lcsh:Environmental sciences lcsh:GE1-350 biology Waste management Renewable Energy Sustainability and the Environment lcsh:Environmental effects of industries and plants food and beverages jel:Q0 jel:Q2 Biodegradation Straw jel:Q3 biology.organism_classification jel:Q5 Edible mushroom lcsh:TD194-195 chemistry jel:O13 Degradation (geology) Environmental science Pleurotus ostreatus jel:Q56 |
| Zdroj: | Sustainability Volume 7 Issue 5 Pages 6033-6045 Sustainability, Vol 7, Iss 5, Pp 6033-6045 (2015) |
| ISSN: | 2071-1050 |
| Popis: | Waste with high biomass content generated in cities in developing countries is sent to landfills or open dumps. This research aims to degrade biomass content in urban waste through cultivation, at pilot scale, of the edible mushroom Pleurotus ostreatus. First, the number of diapers used by one baby per week was measured with a survey in day care facilities. Then, cellulose content of diapers was assessed. Finally, cultivation of P. ostreatus was carried out using as substrate a mixture of diapers with gardening waste, a co-substrate readily available at urban settings. The factors assessed were strain of P. ostreatus (grey BPR-81, white BPR-5), conditioning of the substrate (diapers with and without plastic) and co-substrate (wheat straw, grass, and withered leaves). Results show that diapers are a valuable source of biomass, as generation of diapers with urine is 15.3 kg/child/month and they contain 50.2% by weight of cellulose. The highest reductions in dry weight and volume (> 64%) of substrates was achieved with the substrate diaper without plastic and co-substrate wheat straw. Although diapers with plastic and grass and leaves showed lower degradation, they achieved efficiencies that make them suitable as a co-substrate (> 40%), considering that their biomass is currently confined in landfills. |
| Databáze: | OpenAIRE |
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