Comparison of several polymeric sorbents for selective boron removal from reverse osmosis permeate
Articles > Article ยท 2007
Authors: Helena Parschova, Eva Mistova, Zdenek Matejka, Ludek Jelinek, Nalan KABAY, Pasi Kauppinen
REACTIVE & FUNCTIONAL POLYMERS, Journal Indexed in SCI Expanded, International, 2007, vol 67, pp 1622-1627
DOI: 10.1016/j.reactfunctpolym.2007.07.026
Summary
Fibrous sorbents based on polypropylene and viscose fibers grafted with styrene or glycidyl methacrylate and functionalized with N-methylglucamine were compared with classical polystyrene/DVB bead sorbent with N-methylglucamine functional group. Tests were carried out in dynamic column mode. Model solution of reverse osmosis permeate containing 1.5 mg/L of boron was pumped through 5 mL of sorbent packed in glass column. Fibrous sorbents showed much faster sorption kinetics than bead sorbent, tolerating high specific flow-rates. Compared to bead sorbent, boron regeneration profiles of fibrous sorbents were narrower and they could be successfully regenerated with more diluted hydrochloric acid. (c) 2007 Elsevier Ltd. All rights reserved.