Effective cr(VI) removal from simulated groundwater through the hydrotalcite-derived adsorbent / Yunfeng Xu in Industrial & engineering chemistry research, Vol. 49 N° 6 (Mars 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2752–2758 Titre : Effective cr(VI) removal from simulated groundwater through the hydrotalcite-derived adsorbent Type de document : texte imprimé Auteurs : Yunfeng Xu, Auteur ; Jia Zhang, Auteur ; Guangren Qian, Auteur Année de publication : 2010 Article en page(s) : pp. 2752–2758 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Effective Cr(VI  Removal from  Groundwater  Hydrotalcite Résumé : We investigated the feasibility of using calcined hydrotalcite (CHT) as the adsorbent of chromate to treat Cr(VI)-contaminated water through column tests under varied conditions. The column tests reveal that CHT can take up 34.3−44.7 mg(Cr)/g when the Cr(VI) concentration in the influent varies over a range of 50−200 mg/L (e.g., 0.96−3.85 mM) with pH 6−7 at 298 K. This uptake capacity is only reduced to 29.1 mg(Cr)/g when HCO3− (1.0 mM) and Cl− (1.0 mM) coexist in the influent. We note that the treated water is of high quality and is free of Cr(VI), with Mg and Al concentrations of Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901469c [article] Effective cr(VI) removal from simulated groundwater through the hydrotalcite-derived adsorbent [texte imprimé] / Yunfeng Xu, Auteur ; Jia Zhang, Auteur ; Guangren Qian, Auteur . - 2010 . - pp. 2752–2758. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2752–2758 Mots-clés : Effective Cr(VI  Removal from  Groundwater  Hydrotalcite Résumé : We investigated the feasibility of using calcined hydrotalcite (CHT) as the adsorbent of chromate to treat Cr(VI)-contaminated water through column tests under varied conditions. The column tests reveal that CHT can take up 34.3−44.7 mg(Cr)/g when the Cr(VI) concentration in the influent varies over a range of 50−200 mg/L (e.g., 0.96−3.85 mM) with pH 6−7 at 298 K. This uptake capacity is only reduced to 29.1 mg(Cr)/g when HCO3− (1.0 mM) and Cl− (1.0 mM) coexist in the influent. We note that the treated water is of high quality and is free of Cr(VI), with Mg and Al concentrations of Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901469c

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