Studies on the pretreatment of zeolite clinoptilolite in packed beds

V. J. Inglezakis; M. D. Loizidou; H. P. Grigoropoulou

doi:10.1080/09593330409355446

Studies on the pretreatment of zeolite clinoptilolite in packed beds

V. J. Inglezakis, M. D. Loizidou, H. P. Grigoropoulou

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The effect of volumetric flow rate, ranging from 5 to 45 Bed Volumes per hour (BV h^-1) and temperature, ranging from 25 to 59°C, during pretreatment of clinoptilolite on its effective capacity has been investigated. Pretreatment tests have been performed in an upflow ion exchange bed. Increased temperatures were found to increase the effective capacity of clinoptilolite. Effective capacity was maximal at low volumetric flow rates, indicating an influence of contact time and complete saturation of the zeolite bed at flow rates lower than 10 BV h^-1 Furthermore, a comparison between upflow and downflow operation at the same operating conditions showed that better results are obtained in upflow conditions, probably due to the better wetting of the material and the absence of liquid maldistribution.

Original language	English
Pages (from-to)	133-139
Number of pages	7
Journal	Environmental Technology (United Kingdom)
Volume	25
Issue number	2
DOIs	https://doi.org/10.1080/09593330409355446
Publication status	Published - 2004

Keywords

Clinoptilolite
Ion exchange
Packed bed
Pretreatment
Zeolites

ASJC Scopus subject areas

Environmental Chemistry
Water Science and Technology
Waste Management and Disposal

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Studies on the pretreatment of zeolite clinoptilolite in packed beds

Abstract

Keywords

ASJC Scopus subject areas

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