Removal of Styrene From Air by Natural and Modified Zeolite

authors:

avatar Hasan Asilian ORCID , * , avatar Ali Khavanin ORCID 1 , avatar Mahnaz Afzali ORCID 1 , avatar Saeed Dehestani ORCID 1 , avatar Ardalan Soleimanion ORCID 1

Environmental and Occupational Health Engineering Department, Faculty of Medical Sciences, Tarbiat Modares University, asilia_h@modares.ac.ir, IR Iran
Health Scope: Vol.1, issue 1; 7-11
published online: May 15, 2012
article type: Review Article
received: February 25, 2012
accepted: March 11, 2012
DOI: https://doi.org/10.5812/JHS.4592

how to cite: Asilian H, Khavanin A, Afzali M, Dehestani S, Soleimanion A. Removal of Styrene From Air by Natural and Modified Zeolite. Health Scope. 2012;1(1): 7-11. https://doi.org/10.5812/JHS.4592.

Abstract

Context: Changing the surface characteristics of raw materials has created new prospects for catalysts and adsorption technology. Natural and modified zeolite with trimethylchlorosilane (TMSCI) has been used to adsorb styrene.

Evidence Acquisition: Dynamic adsorption tests were performed with a number of standard characterization techniques and zeolite particles were examined in three sizes: less than 1 mm, 1–2 mm, and 2–4 mm. The gas concentration was 20 ppm, 40 ppm, and 60 ppm. Three flow rates were tested in this study: 0.5 l/min, 0.75 l/min, and 1 l/min. The sorption of Styrene depended on the particle diameter size, gas flow rate, and inlet gas concentration.

Results: The optimum size for adsorption was less than 1 mm, the optimum flow rate was 0.5 l/min, and the optimum gas concentration was 20 ppm. The adsorption capacity decreased with increasing size, flow rate, and concentration of the pollutant.

Conclusions: The adsorption by the surface-modified zeolite increased by as much as 100% compared with natural zeolite. Therefore, the surface-modified natural zeolite may be utilized for many adsorption applications. This study shows the importance of chemical surface modification and confirms similar findings of other studies.

Implication for health policy/practice/research/medical education:
This subject can be useful for styrene control in workplaces as a contaminant. It can be used for researchers who are interested in Air Pollution Control using zeolite as a adsorbent.

Please cite this paper as:
Asilian H, Khavanin A, Afzali M, Dehestani S, A Sdeymanion. Removal of Styrene From Air by Natural and Modified Zeolite. Health Scope. 2012;1(1): 7-11. DOI: 10.5812/jhs.4592            

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