Identification of recalcitrant compounds in a pilot-scale AB system: An adsorption (A) stage followed by a biological (B) stage to treat municipal wastewater.
Bioresour Technol
; 206: 121-127, 2016 Apr.
Article
en En
| MEDLINE
| ID: mdl-26851895
ABSTRACT
This manuscript presents a comparison of the A-stage and B-stage sludges in terms of anaerobic biodegradability and low molecular weight compounds present in the supernatant using Gas Chromatography-Mass Spectrometry (GC-MS). The GC-MS analysis of A-stage and B-stage supernatants identified respectively 43 and 19 organic compounds consisting mainly of aromatics (27.9% and 21%), alcohols (25.6% and 15%) and acids (30.2% and 15%). The methane potential was found to be 349±1 mL CH4/g VS and 238±12 mL CH4/g VS, respectively. After anaerobic digestion of these sludges, a greater proportion of aromatics (42% and 58%) and a lower proportion of acids (10% and 10%) and alcohols (16% and 10%) was observed.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Compuestos Orgánicos
/
Aguas del Alcantarillado
/
Eliminación de Residuos Líquidos
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Cromatografía de Gases y Espectrometría de Masas
/
Metano
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Bioresour Technol
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2016
Tipo del documento:
Article