Application of flotation for the separation of metal-loaded zeolites

被引：41

作者：

Matis, KA

Zouboulis, AI

Gallios, GP

Erwe, T

Blöcher, C

机构：

[1] Aristotle Univ Thessaloniki, Sch Chem, Sect Chem Technol & Ind Chem, GR-54124 Thessaloniki, Greece

[2] Univ Saarland, Dept Proc Technol, D-66123 Saarbrucken, Germany

[3] Inst Environm Compatible Proc Technol Ltd, D-66123 Saarbrucken, Germany

来源：

CHEMOSPHERE | 2004年 / 55卷 / 01期

关键词：

zinc ion exchange; industrial wastes; recovery; MAP zeolites;

D O I：

10.1016/j.chemosphere.2003.11.030

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Several industrial wastewater streams may contain heavy metal ions, which must be effectively removed, before the discharge or reuse of treated waters could take place. Different bonding materials, presenting selectivity and fast reaction kinetics for the removal of metals, have been examined for this purpose. The objective of the present paper was to investigate the application of dispersed-air flotation for the separation of metal-loaded sorbents. Two similar zeolite samples were applied as effective bonding agents for the removal of zinc, a toxic metal commonly found in many industrial wastewaters. This combined process, termed sorptive flotation, involves the preliminary scavenging of metal ions, by using the appropriate sorbent particles (usually present as ultrafine particulates), followed by flotation for the effective separation of them. The obtained results were very promising, as both metal and sorbent were effectively removed/separated from the dispersion. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：65 / 72

页数：8

共 25 条

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