Pollution Research Paper

Vol. 36, Issue 3, 2017; Page No.(403-309)

ANILINE BIO-ADSORPTION FROM AQUEOUS SOLUTIONS USING DRIED ACTIVATED SLUDGE

MOHAMMAD MEHDI BANESHI1, AMIN ZAREI2, GHOLAMREZA EBRAHIMZADEH3, MOHAMMAD REZA NAROOIE4, EHSAN ABOUEE MEHRIZI5, MOHAMMAD MOBINI6, ABDOLREZA KARIMI7 AND HAMED BIGLARI

Abstract

Aniline is among aromatic hydrocarbon contaminants which is highly used in chemical industries and different processes and have many adverse impacts on the creatures and the environment. Thus, in this study efficiency of nano-photocatalytic process of zinc oxide nanoparticles and ultraviolet ray in removal of aniline from synthetic wastewater is investigated. The dried sewage sludge, which was activated using potassium carbonate (K2CO3) at 600 °C, was used as a sorbent in this study. All experiments of Aniline adsorption were carried out on activated ash produced in a batch reactor using 100 mL Erlenmeyer with effect of changing parameters of pH 2 to 11, absorbent dosage of 1- 10 g/L and 50-250 mg/L aniline by spectrophotometer colorimetric method during contact time of 120 min. In addition, Freundlich and Langmuir isotherms on optimum data were determined. Results showed that efficiency of about 0.99 % was obtained during 120 min, absorbent dosage of 10 g/L and pH 6 in presence of 50 mg/L aniline. Also results indicated that data follow second order kinetic and Langmuir isotherm (R2 0.99).

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