Removal and recovery of Cr(VI) from polluted ground waters:: A comparative study of ion-exchange technologies

被引：169

作者：

Galán, B ^{[1
]}

Castañeda, D ^{[1
]}

Ortiz, I ^{[1
]}

机构：

[1] Univ Cantabria, ETSIIyT, Dept Quim Inorgan & Ingn Quim, Santander 39005, Spain

来源：

WATER RESEARCH | 2005年 / 39卷 / 18期

关键词：

chromium (VI); ion exchange; membrane; separation; concentration;

D O I：

10.1016/j.watres.2005.08.015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

The focus of this work has been the study of Cr(VI) removal from ground waters and the simultaneous concentration for its reuse using three different technological alternatives: anion-exchange resins, liquid-liquid extraction assisted by hollow fibre membranes and emulsion pertraction. The viability of the considered objectives, i.e., Cr(VI) separation (< 0.5 g/m(3)) and concentration for reuse (> 20,000g/m(3)) has been checked and a comparative analysis of the three technologies has been performed. Although the flexibility and case of operation of non-dispersive solvent extraction, anion-exchange resins and emulsion pertraction lead to higher velocities of chromium removal, yet still maintaining similar concentration efficiencies. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：4317 / 4324

页数：8

共 26 条

[1]

Uphill permeation of chromium (VI) using Cyanex 921 as ionophore across an immobilized liquid membrane [J].

Alguacil, FJ ;

Coedo, AG ;

Dorado, MT ;

Sastre, AM .

HYDROMETALLURGY, 2001, 61 (01) :13-19

[2]

Experimental and theoretical analysis of a nondispersive solvent extraction pilot plant for the removal of Cr(VI) from a galvanic process wastewaters [J].

Alonso, AI ;

Galán, B ;

González, M ;

Ortiz, I .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (04) :1666-1675

[3]

[Anonymous], 1998, TOX REV HEX CHROM

[4]

PROTEIN EXTRACTIONS WITH HOLLOW FIBERS [J].

DAHURON, L ;

CUSSLER, EL .

AICHE JOURNAL, 1988, 34 (01) :130-136

[5]

HEAVY-METAL REMOVAL AND RECOVERY BY CONTAINED LIQUID MEMBRANE PERMEATOR [J].

GUHA, AK ;

YUN, CH ;

BASU, R ;

SIRKAR, KK .

AICHE JOURNAL, 1994, 40 (07) :1223-1237

[6]

GUYER HH, 1989, IND PROCESSES WASTE

[7]

Steady-state mass transfer and modelling in hollow fibre liquid membranes [J].

Harrington, PJ ;

Stevens, GW .

JOURNAL OF MEMBRANE SCIENCE, 2001, 192 (1-2) :83-98

[8]

New membrane technology for removal and recovery of chromium from waste waters [J].

Ho, WSW ;

Poddar, TK .

ENVIRONMENTAL PROGRESS, 2001, 20 (01) :44-52

[9]

HO WSW, 2001, Patent No. 6171563

[10]

The membrane contactor: Environmental applications and possibilities [J].

Klaassen, R ;

Jansen, AE .

ENVIRONMENTAL PROGRESS, 2001, 20 (01) :37-43

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