Anaerobic effluent disinfected with ozone/hydrogen peroxide efluente anaeróbio desinfetado com ozônio/peróxido de hidrogênio
Carregando...
Data
2012-01-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
This research aimed at studying the oxidation process, to verify the effectiveness of coliform inactivation and to evaluate the formation of ozonation disinfection byproducts (DBP) in anoxic sanitary wastewater treated with ozone/hydrogen peroxide applied at doses of 2.6 mg O3 L-1 and 2.0 mg H2O2 L-1 with contact time of 10 min and 8.1 mg O3 L-1 and 8.0 mg H2O2 L-1 with contact time of 20 min. The mean chemical oxygen demand (COD) reductions were 7.50 and 9.40% for applied dosages of 2.5-2.8 and 6.4-9.4 mg O3 L-1 + 2.0 and 8.0 mg H2O2.L-1, respectively. The Escherichia coli (E. coli) inactivation range was 2.98-4.04 log10 and the total coliform inactivation range was 2.77-4.01 log10. The aldehydes investigated were formaldehyde, acetaldehyde, glyoxal and methylglyoxal. It was observed only the formation of acetaldehyde that ranged 5.53 to 29.68 μg L-1.
Descrição
Palavras-chave
Anaerobic effluent, Byproducts, Disinfection, Hydrogen peroxide, Ozone, Sanitary wastewater, Contact time, Disinfection byproducts, Escherichia coli (E. coli), Glyoxal, Methylglyoxal, Oxidation process, Acetaldehyde, Chemical oxygen demand, Escherichia coli, Oxidation, Ozone water treatment, Ozonization, Wastewater treatment, Effluents
Idioma
Inglês
Como citar
Ciencia y Engenharia/ Science and Engineering Journal, v. 21, n. 1, p. 1-7, 2012.
