Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/21332
Tipo: | Artigo |
Título: | Biogas production from thermophilic anaerobic digestion of kraft pulp mill sludge |
Autor(es): | Lopes, Alice do Carmo Precci Silva, Cláudio Mudadu Rosa, André Pereira Rodrigues, Fábiode Ávila |
Abstract: | Primary and secondary sludges originating from kraft pulp mill effluent treatment plants represent an environmental challenge. Their final disposal mainly includes landfill or burning in the mill's biomass boiler. Seeking energy self-sufficiency and better environmental outcomes, the pulp industry is looking to develop new waste management strategies. Biogas production is a millennial technology already applied in many fields, but still behind in terms of pulp and paper mill sludges. Due to the high moisture content of sludge, anaerobic digestion shows great potential. This paper aimed to study biogas pro- duction using kraft pulp mill primary and secondary sludges under thermophilic conditions, coupling laboratory experiments with mathematical modeling. Methane production was estimated through the Biochemical Methane Potential (BMP). The Process Simulation Model developed by Rajendran et al. [1] was calibrated for kraft pulp mill sludge based on the BMP results. Cumulative methane production from the secondary sludge reached 46.9 NmL CH 4 /g VS in 30 days. In addition, the Rajendran et al. [1] model was shown to be suitable for simulating the methane yield from bleached kraft pulp mill secondary sludge after minor adjustments. The energy balance showed that the anaerobic digestion process under thermophilic condition for kraft pulp mill secondary sludge still is not feasible on large scale, since the heat produced by biogas was smaller than the heat demanded for heating the reactors. |
Palavras-chave: | Biogas Modeling Pulp and paper mills Sludge |
Editor: | Renewable Energy |
Tipo de Acesso: | Elsevier Ltd. |
URI: | https://doi.org/10.1016/j.renene.2017.08.044 http://www.locus.ufv.br/handle/123456789/21332 |
Data do documento: | Ago-2018 |
Aparece nas coleções: | Engenharia Agrícola - Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf Until 2100-12-31 | texto completo | 1,12 MB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.