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. 2014 Jul 3;28(2):259–265. doi: 10.1080/13102818.2014.907028

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© 2014 The Author(s). Published by Taylor & Francis.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.

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Figure 1. — Cr(VI) removal efficiencies by S. thunbergii at different pH (a) and biomass (b). Initial Cr(VI) concentration in part (b) was 2 mmol/L; Cr removed percentage (▴); adsorption of Cr(VI) per unit weight of adsorbent (▪).