Adsorption characteristics of As(V) on iron-coated zeolite

被引：167

作者：

Jeon, Chil-Sung ^{[1
]}

Baek, Kitae ^{[1
]}

Park, Joon-Kyu ^{[2
]}

Oh, Young-Ki ^{[3
]}

Lee, Sang-Do ^{[3
]}

机构：

[1] Kumoh Natl Inst Technol, Dept Environm Engn, Gumi 730701, Gyeongbuk, South Korea

[2] NeoEcos Inc, Seoul, South Korea

[3] GS E&C, Yongin, Kyunggi, South Korea

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 163卷 / 2-3期

关键词：

Iron-coated zeolite; Arsenic; Sorption; Kinetics; ARSENIC REMOVAL; AQUEOUS-SOLUTIONS; AS(III); WATER; SORPTION; SAND;

D O I：

10.1016/j.jhazmat.2008.07.052

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

The sorption characteristics of arsenic(As(V)) on iron-coated zeolite (ICZ) were investigated through batch and column studies. As(V) was completely removed within 30 min in a concentration of 2 mg/l, with a 100 g/l dose of ICZ. Optimum dose of ICZ was 33.3 g/l at a concentration of 20.12 mg/l and the effect of solution pH was negligible at a pH range of 3.0 < pH < 10.0. Langmuir Isotherm Model was suitable to explain the sorption characteristics of As(V) onto ICZ. The co-presence of sulfate ions inhibited sorption of As(V) because of competitive adsorption. The adsorption capacity of ICZ for As(V) was 0.68 mg/g. Based on the result, ICZ is a suitable material to treat the mine drainage or wastewater bearing As(V). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：804 / 808

页数：5

共 20 条

[1]

Altundogan HS, 2000, WASTE MANAGE, V20, P761

[2]

Removal of As(III) in a column reactor packed with iron-coated sand and manganese-coated sand [J].