Reduction of pollutants and disinfection of industrial wastewater by an integrated system of copper electrocoagulation and electrochemically generated hydrogen peroxide.
J Environ Sci Health A Tox Hazard Subst Environ Eng
; 50(4): 406-13, 2015.
Article
em En
| MEDLINE
| ID: mdl-25723067
ABSTRACT
The objective of this study was to evaluate the effect of copper electrocoagulation and hydrogen peroxide on COD, color, turbidity, and bacterial activity in a mixed industry wastewater. The integrated system of copper electrocoagulation and hydrogen peroxide is effective at reducing the organic and bacterial content of industrial wastewater. The copper electrocoagulation alone reduces COD by 56% in 30 min at pH 2.8, but the combined system reduces COD by 78%, biochemical oxygen demand (BOD5) by 81%, and color by 97% under the same conditions. Colloidal particles are flocculated effectively, as shown by the reduction of zeta potential and the 84% reduction in turbidity and 99% reduction in total solids. Additionally, the total coliforms, fecal coliforms, and bacteria are all reduced by 99%. The integrated system is effective and practical for the reduction of both organic and bacterial content in industrial wastewater.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Substâncias Perigosas
/
Eliminação de Resíduos Líquidos
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Desinfecção
/
Cobre
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Águas Residuárias
/
Peróxido de Hidrogênio
Tipo de estudo:
Evaluation_studies
/
Risk_factors_studies
Idioma:
En
Revista:
J Environ Sci Health A Tox Hazard Subst Environ Eng
Assunto da revista:
TOXICOLOGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de publicação:
ENGLAND
/
ESCOCIA
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GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
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UK
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UNITED KINGDOM