INVESTIGADORES
FERRO OROZCO Ana Micaela
congresos y reuniones científicas
Título:
Activated sludge respirometry to assess detoxification of phenol solutions by modified fenton reaction
Autor/es:
NATALIA INCHAURRONDO; ANA MICAELA FERRO OROZCO; EDGARDO MARTIN CONTRERAS; PATRICIA HAURE
Lugar:
Mar del Plata
Reunión:
Congreso; VI Congreso Argentino de Ingeniería Química; 2010
Resumen:
The oxidation of phenol solutions through
the Fenton reaction using homogeneous Cu (II) and a novel heterogeneous Cu (II)
chitosan/alumina catalyst was studied in a laboratory batch reactor at 323K. Total
phenol and 80% and total organic carbon (TOC) conversions were achieved using 200 mg/l of Cu(II) in
homogeneous reaction or employing a
significantly smaller amount of Cu(II) (116 mg/l) with the Cu (II)
chitosan/alumina heterogeneous catalyst. The toxicity of the model wastewater and its
oxidation products to activated sludge was estimated by activated sludge
respirometry. Results suggest that toxicity of treated
samples was mainly due to the presence of Cu (II); in addition, the presence of
phenol oxidation by-products obtained in both catalytic systems had a
negligible effect on the respiration rate of activated sludge