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Landfill leachate treatment using a rotating biological contactor and an upward-flow anaerobic sludge bed reactor.
Castillo, E; Vergara, M; Moreno, Y.
Afiliação
  • Castillo E; Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aéreo 678, Bucaramanga, Colombia. ceiam@uis.edu.co
Waste Manag ; 27(5): 720-6, 2007.
Article em En | MEDLINE | ID: mdl-17011178
This paper describes the feasibility of an aerobic system (rotating biological contactor, RBC) and a biological anaerobic system (upward-flow anaerobic sludge bed reactor) at small scale for the treatment of a landfill leachate. In the first phase of the aerobic system study, a cyclic-batch RBC system was used to select perforated acetate discs among three different acetate disc configurations. These discs were chosen on the basis of high COD removal (65%) and biological stability. In the second phase, the RBC system (using four stages) was operated continuously at different hydraulic retention times (HRT), at different rotational speeds, and with varying organic concentrations of the influent leachate (2500-9000mgL(-1)). Forty percent of the total surface area of each perforated disc was submerged in the leachate. A COD removal of about 52% was obtained at an HRT of 24h and a rotational speed of 6rpm. For the anaerobic system, the reactor was evaluated with a volumetric organic load of 3273g-COD m(-3) day(-1) at an HRT of 54, 44, 39, 24 and 17h. At these conditions, the system reached COD removal efficiencies of 62%, 61%, 59%, 44% and 24%, respectively.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Esgotos / Bactérias Anaeróbias / Eliminação de Resíduos / Reatores Biológicos Idioma: En Revista: Waste Manag Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Estados Unidos
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Esgotos / Bactérias Anaeróbias / Eliminação de Resíduos / Reatores Biológicos Idioma: En Revista: Waste Manag Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Estados Unidos