Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 49, Issue 16, Pages 7574-7579Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie101003y
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Funding
- Program for New Century Excellent Talents in University of China [NCET07-0421]
- Ministry of Education of China [200802840034]
- 863 Program of China [2009AA06A418]
- State Key Scientific Program on Water Pollution Control and Treatment [2008ZX07010-005-03]
- Jiangsu Department of Science and Technology [BE2009669]
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A novel hybrid adsorbent HMO-001 was fabricated by impregnating nanosized hydrous manganese dioxide (HMO) onto a porous polystyrene cation exchanger resin (D-001) for enhanced removal of Cd(II) and Zn(II) ions from waters. The immobilized sulfonate anions covalently bound to the D-001 polymeric matrix are supposed to result in preconcentration and enhanced permeation of both target metal ions for favorable adsorption by HMO. Batch and column adsorption runs demonstrated that HMO-001 exhibited highly preferable Cd(R) and Zn(H) retention from waters in the presence of competing Ca(II) ions at much greater levels. The exhausted adsorbent particles are amenable to efficient regeneration by 2% HCl solution without any HMO loss during operation.
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