Humic acid adsorption onto Mg/Fe layered double hydroxide

被引：91

作者：

Gasser, M. S. ^{[1
]}

Mohsen, H. T. ^{[2
]}

Aly, H. F. ^{[1
]}

机构：

[1] Atom Energy Author, Hot Labs Ctr, Cairo 13759, Egypt

[2] Atom Energy Author, Accelerators & Ion Sources Dept, NRC, Cairo 13759, Egypt

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2008年 / 331卷 / 03期

关键词：

Layered double hydroxides; Humic substances; Adsorption; Water treatment;

D O I：

10.1016/j.colsurfa.2008.08.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Layered double hydroxides (LDHs) with Mg2+ and Fe3+ cations and having chloride or carbonate ions in the interlayer region have been prepared and characterized by different methods. The diameter of the prepared particle was in the range of 0.4-0.6 mu m. The adsorption of humic acid onto chloride and carbonate intercalated LDHs with Mg/Fe (ratio = 4:1)was studied by adsorption isotherms at different ionic strengths. The adsorption of humic acid onto LDHs occurred by ion exchange with both the intercalated and surface anions of the LDH and ligand exchange reactions with surface groups. The contribution of both mechanisms to the total HA adsorption was estimated. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：195 / 201

页数：7

共 21 条

[1] Pretreatment of the municipal wastewater feed for reverse osmosis plants [J].

AbdelJawad, M ;

Ebrahim, S ;

AlAtram, F ;

AlShammari, S .

DESALINATION, 1997, 109 (02) :211-223

[2] Polypyrrole-coated granules for humic acid removal [J].

Bai, RB ;

Zhang, X .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 243 (01) :52-60

[3] Removal of natural organic matter by ion exchange [J].

Bolto, B ;

Dixon, D ;

Eldridge, R ;

King, S ;

Linge, K .

WATER RESEARCH, 2002, 36 (20) :5057-5065

[4] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS [J].

Cavani, F. ;

Trifiro, F. ;

Vaccari, A. .

CATALYSIS TODAY, 1991, 11 (02) :173-301

[5] Characterization of clean and natural organic matter (NOM) fouled NF and UF membranes, and foulants characterization [J].

Cho, JW ;

Amy, G ;

Pellegrino, J ;

Yoon, YM .

DESALINATION, 1998, 118 (1-3) :101-108

[6] The effect of iron on the crystalline phases formed upon thermal decomposition of Mg-Al-Fe hydrotalcites [J].

Fernandez, JM ;

Ulibarri, MA ;

Labajos, FM ;

Rives, V .

JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (11) :2507-2514

[7] Chemical and physical aspects of natural organic matter (NOM) fouling of nanofiltration membranes [J].

Hong, SK ;

Elimelech, M .

JOURNAL OF MEMBRANE SCIENCE, 1997, 132 (02) :159-181

[8] Evidence for membrane fouling by specific TOC constituents [J].

Huber, SA .

DESALINATION, 1998, 119 (1-3) :229-234

[9] Preparation of modified clay adsorbents for the removal of humic acid [J].

Jiang, JQ ;

Cooper, C .

ENVIRONMENTAL ENGINEERING SCIENCE, 2003, 20 (06) :581-586

[10]

Kloprogge JT, 1999, PHYS CHEM CHEM PHYS, V1, P1641

← 1 2 3 →