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Removal of chromium (VI) from aqueous solution using walnut hull[J] . Xue Song Wang,Zhi Zhong Li,Sheng Rong Tao.Journal of Environmental Management . 2008 (2)
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Adsorption, kinetics and equilibrium studies on removal of Cr(VI) from aqueous solutions using different low-cost adsorbents[J] . A.K. Bhattacharya,T.K. Naiya,S.N. Mandal,S.K. Das.Chemical Engineering Journal . 2007 (3)