Volume 8, Issue 6 (2-2013)                   HSR 2013, 8(6): 1058-1067 | Back to browse issues page

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Ehrampoush M, Pourzamani H, Pezeshki Najafabadi M. Benzene Removal from Aqueous Solution by Surface Modified Carbon NanotubesUsing Calcium Hypochlorite. HSR 2013; 8 (6) :1058-1067
URL: http://hsr.mui.ac.ir/article-1-459-en.html
1- Professor, Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
2- Assistant Professor, Environmental Research Center, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
3- MSc Student, Department of Environmental Health Engineering, International Campus, Shahid Sadoughi University of Medical Science, Yazd, Iran
Abstract:   (682 Views)
Background: Benzene is a volatile compound in petroleum products and the major concern about this is carcinogenic effects.This study aimed to review benzene removal ability ofmulti-walled carbon nanotubesby surface modified with calcium hypochlorite and sodium hypochlorite from aqueous solution. Methods: The removal of benzene from aqueous solution by multi-walled carbon nanotubes(MWCNT) and its modified surface by calcium hypochlorite [MWCNT(Ca(OCl)2)]and sodium hypochlorite[MWCNT(NaOCl)]were evaluated. Synthetic samples were analyzed by Gas Chromatography.. Findings: Inthis study, nano-materials with dosageof 0.5 g/l, contact time (1-hr and 2-hr) with benzene concentration of 100 mg/l and pH 7 werechosen. The equilibrium amount (qe) and removal efficiency (R)for benzene were 188.6 mg/g and 94.3%, respectively andby MWCNT(Ca(OCl)2)werehigher than MWCNT(NaOCl)(qe=187.7;R=93.9%)and MWCNT(qe =182.6;R=91.3%). Conclusion: The MWCNT(Ca(OCl)2) can effectively adsorb benzene from water and can thus be used as efficient adsorbents to purify waters and wastewaters polluted by the petrochemicals.
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Type of Study: Research | Subject: education health and promotion
Received: 2020/07/16 | Accepted: 2013/02/15 | Published: 2013/02/15

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