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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.creator | Costa, Patrícia Freitas | - |
Autor(es): dc.creator | Matos, Letícia Paiva de | - |
Autor(es): dc.creator | Leão, Versiane Albis | - |
Autor(es): dc.creator | Texeira, Mônica Cristina | - |
Data de aceite: dc.date.accessioned | 2019-11-06T13:30:20Z | - |
Data de disponibilização: dc.date.available | 2019-11-06T13:30:20Z | - |
Data de envio: dc.date.issued | 2014-11-11 | - |
Data de envio: dc.date.issued | 2014-11-11 | - |
Data de envio: dc.date.issued | 2014 | - |
Fonte completa do material: dc.identifier | http://www.repositorio.ufop.br/handle/123456789/3756 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/capes/556734 | - |
Descrição: dc.description | A relatively unusual and low-cost waste material was investigated for As(III) and SO4 2_ removal by a mixed culture containing sulfate-reducing bacteria (SRB). Powdered chicken feathers (PCF) were tested as an organic nutrient source for SRB growth and also as solid support for As(III) immobilization. PCF’s efficiency as a growth substrate was compared with that of sodiumlactate, used as a positive control. As(III) removal increased, from 38% (in the presence of sodium lactate only) to 80%, in the presence of PCF and sodium lactate together. The soluble organic part of PCF contained 2302 mg L_1 of carbon, suggesting the possibility of using PCF as an electron donor for SRB growth. When PCF was the only carbon source, the achieved sulfate removal was lower (13.4%) than that observed when PCF and lactate were added to the medium (27.0%), but higher than those obtained when only lactate was employed at COD/sulfate ratios of 0.67 or1. Arsenicremoval increasedfrom38%(lactate,COD/sulfate = 0.67) to80%inthe presence ofPCFand lactate. The results suggest an alternative biological route for arsenite removal which does not require the use of a strong oxidizing agent to promote As(III) oxidation to As(V) before its removal. | - |
Idioma: dc.language | en | - |
Direitos: dc.rights | O Peiódico Journal of Environmental Chemical Engineering concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3456021358122. | - |
Palavras-chave: dc.subject | Protein-rich waste material | - |
Palavras-chave: dc.subject | Arsenic sulfide | - |
Palavras-chave: dc.subject | Adsorption | - |
Título: dc.title | Bioremoval of arsenite and sulfate by a mixed culture with sulfate-reducing capacity growing on powdered chicken feathers. | - |
Aparece nas coleções: | Repositório Institucional - UFOP |
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