Removal and recovery of phosphorus from water by means of adsorption onto orange waste gel loaded with zirconium

被引：191

作者：

Biswas, Biplob K. ^{[1
]}

Inoue, Katsutoshi ^{[1
]}

Ghimire, Kedar N. ^{[1
]}

Harada, Hiroyuki ^{[1
]}

Ohto, Keisuke ^{[1
]}

Kawakita, Hidetaka ^{[1
]}

机构：

[1] Saga Univ, Dept Appl Chem, Saga 8408502, Japan

来源：

BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 18期

关键词：

Adsorption; Elution; Ligand substitution; Orange waste; Phosphate removal;

D O I：

10.1016/j.biortech.2008.04.015

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Orange waste, an available biomass, was immobilized with zirconium(IV) to investigate its feasibility for phosphate removal from an aquatic environment. Kinetics, effects of pH and foreign anions, and the adsorption isotherm for phosphate have been examined. The adsorption capacity has been compared to that of two commercially available adsorbents such as zirconium ferrite and MUROMAC XMC 3614. The prepared gel was an effective adsorption gel for phosphate removal with a reasonably high sorption capacity of 57 mg-P/g, which was four times higher than that of zirconium ferrite. The highest removal of phosphate was observed at low pH, whereas higher pH suppressed phosphate removal, but even up to pH 9 more than 85% phosphate removal was observed. Adsorbed phosphate was eluted by NaOH solution. Fixed bed Column-mode experiments confirmed the complete adsorption of phosphate in continuous-mode operation. Throughout the operating conditions, zirconium was not leaked. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：8685 / 8690

页数：6

共 32 条

[1]

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