Your browser doesn't support javascript.
loading
Nitrate increases the capacity of an aerobic moving-bed biofilm reactor (MBBR) for winery wastewater treatment.
Walker, Patricio; Nerenberg, Robert; Pizarro, Gonzalo; Aybar, Marcelo; Pavissich, Juan Pablo; González, Bernardo; Pastén, Pablo.
Afiliação
  • Walker P; Departamento de Ingeniería Hidráulica y Ambiental, Facultad de Ingeniería, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile.
  • Nerenberg R; Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, Indiana, USA.
  • Pizarro G; Departamento de Ingeniería Hidráulica y Ambiental, Facultad de Ingeniería, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile.
  • Aybar M; Facultad de Ingeniería y Tecnología, Universidad San Sebastián, Bellavista 7, Santiago, Chile.
  • Pavissich JP; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Diagonal Las Torres 2640, Santiago, Chile; Center of Applied Ecology and Sustainability (CAPES), Santiago, Chile.
  • González B; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Diagonal Las Torres 2640, Santiago, Chile; Center of Applied Ecology and Sustainability (CAPES), Santiago, Chile.
  • Pastén P; Departamento de Ingeniería Hidráulica y Ambiental, Facultad de Ingeniería, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile; Center for Sustainable Urban Development (CEDEUS), Santiago, Chile E-mail: ppasten@uc.cl.
Water Sci Technol ; 89(6): 1454-1465, 2024 Mar.
Article em En | MEDLINE | ID: mdl-38557711
ABSTRACT
We used bench-scale tests and mathematical modeling to explore chemical oxygen demand (COD) removal rates in a moving-bed biofilm reactor (MBBR) for winery wastewater treatment, using either urea or nitrate as a nitrogen source. With urea addition, the COD removal fluxes ranged from 34 to 45 gCOD/m2-d. However, when nitrate was added, fluxes increased up to 65 gCOD/m2-d, twice the amount reported for aerobic biofilms for winery wastewater treatment. A one-dimensional biofilm model, calibrated with data from respirometric tests, accurately captured the experimental results. Both experimental and modelling results suggest that nitrate significantly increased MBBR capacity by stimulating COD oxidation in the deeper, oxygen-limited regions of the biofilm. Our research suggests that the addition of nitrate, or other energetic and broadly used electron acceptors, may provide a cost-effective means of covering peak COD loads in biofilm processes for winery or another industrial wastewater treatment.
Assuntos
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Eliminação de Resíduos Líquidos / Purificação da Água Idioma: En Revista: Water Sci Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Eliminação de Resíduos Líquidos / Purificação da Água Idioma: En Revista: Water Sci Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido