Anaerobic degradation of linear alkylbenzene sulfonate in fluidized bed reactor
AUTOR(ES)
Oliveira, L. L., Costa, R. B., Duarte, I. C. S., Luiz Silva, E., Varesche, M. B. A.
FONTE
Brazilian Journal of Chemical Engineering
DATA DE PUBLICAÇÃO
2010-12
RESUMO
An anaerobic fluidized bed reactor was used to assess the degradation of the surfactant linear alkylbenzene sulfonate (LAS). The reactor was inoculated with sludge from an UASB reactor treating swine wastewater and was fed with a synthetic substrate supplemented with LAS. Sand was used as support material for biomass immobilization. The reactor was kept in a controlled temperature chamber (30±1 ºC) and operated with a hydraulic retention time (HRT) of 18 h. The LAS concentration was gradually increased from 8.2±1.3 to 45.8±5.4 mg.L-1. The COD removal was 91%, on average, when the influent COD was 645±49 mg.L-1. The results obtained by chromatographic analysis showed that the reactor removed 93% of the LAS after 270 days of operation.
Documentos Relacionados
- Remoção de alquilbenzeno linear sulfonado (LAS) e caracterização microbiana em reator anaeróbio de leito fluidificado
- Phenol degradation in an anaerobic fluidized bed reactor packed with low density support materials
- Biohydrogen production from cassava wastewater in an anaerobic fluidized bed reactor
- Las degradation in a fluidized bed reactor and phylogenetic characterization of the biofilm
- Caracterização microbiana e remoção do alquilbenzeno linear sulfonado em reator EGSB