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Two and three-parameter isothermal modeling for liquid-phase sorption of Procion Blue H-B by inactive mycelial biomass ofPanus fulvus
- Source :
- Journal of Chemical Technology & Biotechnology. 82:389-398
- Publication Year :
- 2007
- Publisher :
- Wiley, 2007.
-
Abstract
- Procion Blue H-B (PBHB) was used as a model reactive dye for biosorption studies onto inactive/dead mycelial biomass of Panus fulvus. Process parameters like pH, contact time and temperature were optimized. pH 2, 150min of contact time and 35 ◦ C were found to be more favorable for maximum biosorption. Various two- and three-parameter isotherms were employed to understand the biosorption process. Among the various two-parameter isothermal models applied, the Langmuir isotherm showed the best fit and among the three- parameter isothermal models, the Khan, Redlich-Peterson, Sips and Toth isotherm models showed similar fits and only the Koble-Corrigan model showed a poor fit. In kinetic studies, pseudo-first-order model fitted better than pseudo-second-order model. Maximum desorption was observed in alkaline pH, which reveals the possibility of a chemisorption mechanism involved in the removal of PBHB. Among the various desorption media assessed, 70% (v/v) acetone showed complete desorption of the sorbate from the sorbent. Scanning electron microscopy images revealed the non-fibrous nature of the adsorbent. FT-IR studies showed the existence of amine groups in the sorbent which are the major adsorbent sites for reactive dyes. 2007 Society of Chemical Industry
- Subjects :
- Sorbent
Chromatography
Renewable Energy, Sustainability and the Environment
General Chemical Engineering
Organic Chemistry
Biosorption
Langmuir adsorption model
Sorption
Pollution
Isothermal process
Inorganic Chemistry
chemistry.chemical_compound
symbols.namesake
Fuel Technology
Adsorption
chemistry
Desorption
symbols
Reactive dye
Waste Management and Disposal
Biotechnology
Nuclear chemistry
Subjects
Details
- ISSN :
- 10974660 and 02682575
- Volume :
- 82
- Database :
- OpenAIRE
- Journal :
- Journal of Chemical Technology & Biotechnology
- Accession number :
- edsair.doi...........9f30c7f079f8f90bdf02aab7a1e7567a