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Effects of operating parameters on kinetics of copper(II) ion biosorption onto pre-treated powdered waste sludge (PWS)

Paper ID Volume ID Publish Year Pages File Format Full-Text
18606 42727 2007 7 PDF Available
Title
Effects of operating parameters on kinetics of copper(II) ion biosorption onto pre-treated powdered waste sludge (PWS)
Abstract

Effects of operating parameters such as pH, temperature, Cu(II) ion and the adsorbent concentrations and particle size on batch biosorption kinetics of copper(II) ions onto pre-treated powdered waste sludge (PWS) were investigated. Pseudo-first and second order kinetics were used for correlation of pre-equilibrium biosorption data and the rate constants were determined. The pseudo-second order kinetics was found to be more suitable for representation of the kinetic data for almost all cases. Kinetic constants increased with increasing pH, temperature and PWS concentration, but decreased with increasing Cu(II) concentrations and the particle size of PWS. The highest rate constants for the pseudo-first and second order kinetics were 0.808 h−1 and 0.0309 (mg/g)−1 h−1, respectively for the smallest particle size of 53 μm. The highest Cu(II) biosorption capacity of 156 mg g−1 was obtained with PWS and Cu(II) concentrations of 0.25 g l−1 and 100 mg l−1 with the smallest particle size (Dp < 53 μm).

Keywords
Biosorption; Cu(II) ions; Kinetics; Operating conditions; Powdered waste sludge (PWS); Rate constants
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Effects of operating parameters on kinetics of copper(II) ion biosorption onto pre-treated powdered waste sludge (PWS)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 42, Issue 1, 3 December 2007, Pages 76–82
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us