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- Title
Influence of Immobilization of Bacterial Cells and TiO on Phenol Degradation.
- Authors
Park, Mee-Ree; Kim, Dong-Ju; Choi, Jae-Woo; Lim, Dae-Soon
- Abstract
We investigated the influence of immobilization of bacterial cells and photocatalytic material TiO on the degradation of phenol by conducting batch microcosm studies consisting of suspended, immobilized cells and immobilized TiO at various initial phenol concentrations (50-1,000 mg L). Results showed that both suspended and immobilized cells were concentration-dependent, exhibiting the increasing degradation rate with the concentration of up to 500 mg L above which it declined. The degradation rate of 0.39-3.47 mg L h by suspended cells was comparable with those of the literature. Comparison of the degradation rates between suspended, immobilized cells and immobilized TiO revealed that immobilized cells achieved the highest degradation rate followed by immobilized TiO and suspended cells due to the toxicity of phenol at the high concentration of 1,000 mg L. This indicates that immobilization of bacterial cells or photocatalytic materials can serve a better alternative to offer the higher degradation efficiency at high phenol concentrations.
- Subjects
PHENOLS; BACTERIAL cells; PHOTOCATALYSIS; AROMATIC compounds; POLLUTION
- Publication
Water, Air & Soil Pollution, 2013, Vol 224, Issue 3, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-013-1473-9