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https://hdl.handle.net/10316/27279
Título: | Co-composting of eggshell waste in self-heating reactors: monitoring and end product quality | Autor: | Soares, Micaela A. R. Quina, Margarida M. J. Quinta-Ferreira, Rosa M. |
Palavras-chave: | Industrial eggshell waste; Composting; Self-heating potential; Soil improver | Data: | Nov-2013 | Editora: | Elsevier | Citação: | SOARES, Micaela A. R.; QUINA, Margarida M. J.; QUINTA-FERREIRA, Rosa M. - Co-composting of eggshell waste in self-heating reactors: monitoring and end product quality. "Bioresource Technology". ISSN 0960-8524. Vol. 148 (2013) p. 293-301 | Título da revista, periódico, livro ou evento: | Bioresource Technology | Volume: | 148 | Resumo: | Industrial eggshell waste (ES) is classified as an animal by-product not intended to human consumption. For reducing pathogen spreading risk due to soil incorporation of ES, sanitation by composting is a pre-treatment option. This work aims to evaluate eggshell waste recycling in self-heating composting reactors and investigate ES effect on process evolution and end product quality. Potato peel, grass clippings and rice husks were the starting organic materials considered. The incorporation of 30% (w/w) ES in a composting mixture did not affect mixture biodegradability, nor its capacity to reach sanitizing temperatures. After 25 days of composting, ES addition caused a nitrogen loss of about 10 g N kg−1 of initial volatile solids, thus reducing nitrogen nutritional potential of the finished compost. This study showed that a composting mixture with a significant proportion of ES (30% w/w) may be converted into calcium-rich marketable compost to neutralize soil acidity and/or calcium deficiencies. | URI: | https://hdl.handle.net/10316/27279 | ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2013.08.151 | Direitos: | openAccess |
Aparece nas coleções: | I&D CIEPQPF - Artigos em Revistas Internacionais FCTUC Eng.Química - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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Co-composting of eggshell waste in self-heating reactors.pdf | 924.56 kB | Adobe PDF | Ver/Abrir |
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