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- Title
Enhancement of o- cresol removal using PAC and acclimated biomass immobilized in polyvinyl alcohol hydrogel beads.
- Authors
See, Sylvia; Lim, Jun-Wei; Lim, Poh-Eng; Seng, Chye-Eng; Ng, Si-Ling; Adnan, Rohana
- Abstract
The feasibility of using polyvinyl alcohol (PVA) hydrogel beads encapsulating powdered activated carbon (PAC) and biomass for the enhancement ofo-cresol removal via simultaneous adsorption and biodegradation was investigated in this study. The optimum concentrations of PVA and PAC used to synthesize spherical PVA hydrogel beads with 3–4 mm diameter were found to be 7.5 and 0.5% (w/v), respectively. The results of kinetic studies showed that the rate constant ofo-cresol removal for the initialo-cresol concentration range of 100–400 mg/L could be sustained when the immobilized biomass supplemented with PAC in hydrogel beads was used. However, the removal ofo-cresol was inhibited for the initialo-cresol concentration above 150 mg/L when only immobilized biomass in the beads was used. Thus, the supplementation of PAC to the immobilized biomass in the beads could enhance the removal ofo-cresol via simultaneous adsorption and biodegradation.
- Subjects
SEWAGE purification; CRESOL; WASTEWATER treatment; POLYVINYL alcohol; ACTIVATED carbon; ADSORPTION kinetics
- Publication
Desalination & Water Treatment, 2014, Vol 52, Issue 40-42, p7951
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2013.833874