| Registro completo |
| Provedor de dados: |
REA
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| País: |
Brazil
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| Título: |
Anaerobic co-digestion of crude glycerin and starch industry effluent
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| Autores: |
Larsen,Andrea C.
Gomes,Benedito M.
Gomes,Simone D.
Zenatti,Dilcemara C.
Torres,Douglas G. B.
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| Data: |
2013-04-01
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| Ano: |
2013
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| Palavras-chave: |
Cassava wastewater
Biodiesel
Biogas
Glycerol
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| Resumo: |
The Brazil's Biodiesel Production and Use Program introduces biodiesel in the Brazilian energy matrix, bringing along the perspective of a growth of the glycerin offer, co-product generated in the proportion of 10 kg for each 100 L of biodiesel. The aim of this study was to evaluate the addition of crude glycerin in the anaerobic digestion of cassava starch industry effluent (cassava wastewater), in a horizontal semi-continuous flow reactor of one phase in laboratory scale. It was used a reactor with a 8.77 L of useful volume, a medium support for corrugated conduit of polyvinyl chloride (PVC), temperature of 261 ºC, fed with cassava wastewater and glycerin, with hydraulic detention times of 4 and 5 days and increasing volumetric organic load of 3.05; 9.32; 14.83 and 13.59 g COD L-1 d-1, obtained with the addition of glycerin at 0; 2; 3 and 2% (v/v), respectively. The average removal efficiencies of TS and TVS were decreasing from the addition of glycerin to the cassava wastewater, averaging 81.19 to 55.58% for TS and 90.21 to 61.45% for TVS. The addition of glycerin at 2% increased the biogas production compared to the control treatment, reaching 1.979 L L-1 d-1. The biogas production as a function of the consumed COD was higher for the control treatment than for the treatments with addition of glycerin, which indicates lower conversion of organic matter into biogas.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200013
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| Editor: |
Associação Brasileira de Engenharia Agrícola
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| Relação: |
10.1590/S0100-69162013000200013
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| Formato: |
text/html
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| Fonte: |
Engenharia Agrícola v.33 n.2 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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