Work

Metal Ion Exchange by Natural Zeolites

Year: 1996

Type: article

Abstract: The influence of pretreatment on the capacity and selectivity of natural zeolite for Zn2+ and Mn2+ ions has been studied. Natural tuff (sample 1), consisting mainly of zeolite clinoptilolite, was converted into Na form by conditioning with 2 M NaCl at 22 oC (sample 2) and 70 oC (sample 3), respectively. Simultaneously, 0.26, 0.31, 0.38 mmol Zn2+ and 0.20, 0.23, 0.30 mmol Mn2+ were taken up by 1.00 g zeolite samples 1, 2 and 3, respectively. The results show that zeolites converted to the Na+ form at 70 oC possess the highest capacity for metal ions. For all zeolite samples tested, zinc waas more selectively removed than manganese. The amount and composition of exchangeable cations as well as their impact on ion-exchange performances of zeolite in the process of Zn2+ and Mn2+ removal were determined.

Source: Hrčak Portal of scientific journals of Croatia (University Computing Centre)

Authors: Štefica Cerjan‐Stefanović, Lidija Ćurković, Tugomir Filipan

Institutions: University of Zagreb, Institute for Development and International Relations

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2521422625

FWCI: 1.832

Cites: 2

Cited by: 17

Related to: 10