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Vol. 25 No. 10 (2013): Vol 25 Issue 10

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Phosphorus Removal from Eutrophic Waters with a Novel Lanthanum-Modified Diatomite

https://doi.org/10.14233/ajchem.2013.OH84
Fazhi Xie
School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R. China
Chunnian Da
Department of Biological and Environmental Engineering, Hefei University; Hefei 230022, P.R. China
Fengjun Zhang
School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R. China
Jun Zhang
School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R. China
Xuan Han
School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R. China
Yejun Ge
School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R. China
Guolian Li
School of Environment and Energy Engineering, Anhui University of Architecture, Hefei 230022, P.R. China

Corresponding Author(s) : Fazhi Xie

fzhxie@gmail.com

Asian Journal of Chemistry, Vol. 25 No. 10 (2013): Vol 25 Issue 10

Abstract

A novel phosphorus adsorbent, lanthanum-modified diatomite was prepared by a simple coating method and exhibited high adsorption and removal efficiency for phosphorus in aqueous solutions. After being modified by lanthanum hydroxide, the surface area of diatomite increased 85-fold and the pore volume increased 390 times. These characteristics are responsible for the increased phosphorus adsorption efficiency. Adsorption behaviour for phosphorus depended mainly on the pH of solution, contact time, initial P concentration and co-exist anion ions. The as-prepared sorbent can be used to remove phosphorus from eutrophic lake water efficiently.

Keywords

Phosphorus Lanthanum-modified diatomite Remove Adsorption Lake
Xie, F., Da, C., Zhang, F., Zhang, J., Han, X., Ge, Y., & Li, G. (2013). Phosphorus Removal from Eutrophic Waters with a Novel Lanthanum-Modified Diatomite. Asian Journal of Chemistry, 25(10), 5759–5761. https://doi.org/10.14233/ajchem.2013.OH84
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