Evaluation of the capacity of hydroxyapaptite prepared from concrete sludge to remove lead from water / Takeshi Sasaki in Industrial & engineering chemistry research, Vol. 50 N° 16 (Août 2011)  

Evaluation of the capacity of hydroxyapaptite prepared from concrete sludge to remove lead from water [texte imprimé] / Takeshi Sasaki, Auteur ; Yuka Sakai, Auteur ; Atsushi Iizuka, Auteur . - 2011 . - pp. 9564-9568.
Chimie industrielle
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 50 N° 16 (Août 2011) . - pp. 9564-9568

Mots-clés :	Hydroxyapaptite
Résumé :	Low-crystallinity hydroxyapatite (HAP) was prepared from concrete sludge as a recycling method for concrete waste. The HAP was prepared from model samples of concrete sludge and phosphorus wastewater, and its capacity to remove lead from water was investigated. Lead ions were quickly removed by the HAP particles. Some of the prepared HAP samples reduced the lead concentration of the water to within the Japanese standard for industrial effluent (0.1 ppm). The lead removal capacity of the concrete sludge-derived HAP (506 mg/g) was comparable to that of reagent grade HAP. Lead in water was removed in the form of Pb3(CO3)2(OH)2. These results indicate that HAP prepared from concrete sludge can be applied to removal of lead ions from water.
DEWEY :	660
ISSN :	0888-5885
En ligne :	http://pubs.acs.org/doi/abs/10.1021/ie200233s