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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 12, No. 6, 2015, pp. 1825-1834
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Bioline Code: st15170
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 12, No. 6, 2015, pp. 1825-1834
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Removal of zinc and lead ions by polymer-enhanced ultrafiltration using unmodified starch as novel binding polymer
Baharuddin, N. H.; Sulaiman, N. M. N. & Aroua, M. K.
Abstract
The removal of zinc and lead from aqueous
dilute solutions by polymer-enhanced ultrafiltration process
using unmodified starch as a new binding polymer was
studied. Experiments were performed to determine the
effects of transmembrane pressure, pH, concentration of
metal ions on the retention and permeate flux. The performance
of the proposed new binding polymer was
compared to that of polyethyleneimine a conventional
polymer frequently used in polymer-enhanced ultrafiltration.
The retention of zinc and lead ions reached 96 and
66 %, respectively, using 0.05 % unmodified starch at pH
7. Overall unmodified starch showed better retention for
zinc ions then polyethyleneimine, whereas polyethyleneimine
retention for lead ions was higher. Solution pH was
found to have little effect on flux.
Keywords
Complexing agents; Metals; Polyethyleneimine; Separation; Water soluble
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