Hydrous iron oxide for removal of inorganic contaminants in simulated stormwater: A batch sorption kinetics

Aryal, Rupak, Vigneswaran, Sarvanamuthu, Loganathan, Paripurnanda, Kandasamy, Jayakumar and Mohammed, Thamer (2011) Hydrous iron oxide for removal of inorganic contaminants in simulated stormwater: A batch sorption kinetics. Korean Journal of Chemical Engineering, 28 8: 1706-1712. doi:10.1007/s11814-011-0029-1


Author Aryal, Rupak
Vigneswaran, Sarvanamuthu
Loganathan, Paripurnanda
Kandasamy, Jayakumar
Mohammed, Thamer
Title Hydrous iron oxide for removal of inorganic contaminants in simulated stormwater: A batch sorption kinetics
Journal name Korean Journal of Chemical Engineering   Check publisher's open access policy
ISSN 0256-1115
1975-7220
Publication date 2011-08
Sub-type Article (original research)
DOI 10.1007/s11814-011-0029-1
Volume 28
Issue 8
Start page 1706
End page 1712
Total pages 7
Place of publication New York, NY, United States
Publisher Springer New York
Collection year 2012
Language eng
Formatted abstract
Urban stormwater runoff, which consists of inorganic and organic contaminants, is a major source of pollutants to receiving waters and therefore they need to be removed. Simultaneous removal of contaminants, Cd2+, Cu2+, Ni2+, Zn2+ (heavy metal cations), and SeO42− (oxyanion) from a simulated stormwater by a hydrous ferric oxide (HFO) was studied in batch and column sorption experiments. In the batch experiment the rate of sorption of the ions was rapid at the beginning and reached equilibrium in approximately 300 min. The amounts of ions sorbed were proportionate to the respective initial concentration of the ions added to the HFO. Cluster analysis showed that all heavy metals had similar sorption behavior, whereas Se had a distinctly different sorption process. Of the three different kinetic models tested the pseudo-first order kinetic model fitted the data the best. The column experimental results beyond 180 min were consistent with those of the batch experiment that the removal efficiencies of the ions were in proportion to the ion concentration in the feed. Below 180 min, Cu appeared to be preferentially removed than Zn.
Keyword Sorption kinetics
Hydrous ferric oxide HFO
Stormwater
Inorganic contaminants
Heavy metals
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Advanced Water Management Centre Publications
 
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Created: Thu, 13 Oct 2011, 15:22:20 EST by Dr Rupak Aryal on behalf of Advanced Water Management Centre