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Organic micropollutants in sewage sludge: influence of thermal and ultrasound hydrolysis processes prior to anaerobic stabilization.
Reyes-Contreras, Carolina; Neumann, Patricio; Barriga, Felipe; Venegas, María; Domínguez, Carmen; Bayona, Josep M; Vidal, Gladys.
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  • Reyes-Contreras C; Environmental Engineering and Biotechnology Group, Environmental Sciences Faculty & EULA-Chile Center, University of Concepción, Concepción, Chile.
  • Neumann P; Biotechnology Center, University of Concepción, Concepción, Chile.
  • Barriga F; Environmental Engineering and Biotechnology Group, Environmental Sciences Faculty & EULA-Chile Center, University of Concepción, Concepción, Chile.
  • Venegas M; Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile.
  • Domínguez C; Environmental Engineering and Biotechnology Group, Environmental Sciences Faculty & EULA-Chile Center, University of Concepción, Concepción, Chile.
  • Bayona JM; Environmental Engineering and Biotechnology Group, Environmental Sciences Faculty & EULA-Chile Center, University of Concepción, Concepción, Chile.
  • Vidal G; Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain.
Environ Technol ; 41(11): 1358-1365, 2020 Apr.
Article en En | MEDLINE | ID: mdl-30301410
Organic micropollutants (OMP) in the household and industrial wastewater are not efficiently removed by conventional treatment processes and a significant fraction ends in sludge. Proper valorization technologies become fundamental to attain sustainable sewage sludge management, with anaerobic digestion (AD) as one of the preferred strategies. However, it exhibits some limitations that can be overcome with pre-treatment processes. In this study, the influence of different pre-treatment configurations over OMP concentration and removal during AD was assessed. The incorporation of a sequential US - TT-PT resulted in decreased concentrations of 7 of the 9 detected compounds in biosolids compared to conventional AD digestate, with bisphenol-A and ter-octylphenol showing the opposite effect. The results suggest that the assessed PT could improve the removal of sequestered or highly hydrophobic compounds through their solubilization and increased bioavailability.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aguas del Alcantarillado / Eliminación de Residuos Líquidos Idioma: En Revista: Environ Technol Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2020 Tipo del documento: Article País de afiliación: Chile Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aguas del Alcantarillado / Eliminación de Residuos Líquidos Idioma: En Revista: Environ Technol Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2020 Tipo del documento: Article País de afiliación: Chile Pais de publicación: Reino Unido