Abstract

Removal of aniline as a health-toxic substance from polluted water by aloe vera waste-based activated carbon

Author(s): Hassan Basiri 1 , Heshmatollah Nourmoradi 2 , Fazel Mohammadi Moghadam 3 , Kobra Farokhi Moghadam 2 , Jalal Mohammadian 1 and Yusef Omidi Khaniabadi 1,*

Aniline is a toxic chemical compound and one of the common pollutants found in the effluents from the pharmaceutical, pesticide, dyestuff, petrochemicals and agrochemical industries. The aim of this study was to investigate the sorption of aniline using Aloe Vera wastes-based activated carbon (AV-AC) from water. In this batch study, the effects of various factors including con tact time, pH, adsorbent dosage and initial aniline concentrations were surveyed on the aniline sorption. The results illustrated that the optimum pH and contact time for the removal of aniline by AV-AC was obtained at 3 and 60 min, r espectively. The decrease of pH had a significant i nfluence on the increasing aniline adsorption. Fitting the expe rimental data to various kinetics and isotherms mod els showed that the experimental data were better descripted b y pseudo-second order and Freundlich models, respec tively. Because of low-cost, eco-friendly, non-toxicity and high sorption capacity, this sorbent can be used a s a very effective option to removal of aniline from aqueous media.

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