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Paper Information

Journal:   IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH   SUMMER 2018 , Volume 33 , Number 2 (63) #p00538; Page(s) 244 To 255.

Application of Bagasse as adsorbent of acid orange 7 from aqueous solution

Author(s):  ZIAPOUR A.*, Zare A., BAKHSHI M.
* Faculty of Natural Resources, University of Gorgan, Gorgan, I.R.Iran
Chemical and biological treatment of dye-containing wastewaters is difficult due to the low adsorption level and chemical stability of dyes. Activated carbon is usually used for the adsorption of these materials, but because of high prices and storage problems, researchers tried to find available low-cost materials with high adsorption potential. In this study, bagasse was used for adsorption of Acid Orange7 dye and its capability was examined. Variables were concentration, temperature, pH and treatment time, and the extend of adsorption was examined in different conditions. Then, adsorption isotherm according to Langmuir and Freundlich models was established. The results showed that the adsorption efficiency depends more on pH of solution and less on temperature of the solution. Maximum adsorption of Acid Orange7 dye by bagasse occurred in the first 15 minutes of contact. The study of adsorption isotherm showed that both models are suitable for description of adsorption of Acid Orange7 dye by bagasse. Maximum adsorption of Acid Orange7 dye by bagasse was determined as 18. 56 mg/g. Results of this study showed that bagasse could be used as a low-cost bio adsorbent for the adsorption of Acid Orange7 from aqueous solution.
Keyword(s): Adsorption,adsorption isotherm,Bagasse,acid orange7 dye
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