چکیده مقاله
Nowadays dyes are considered as major environmental pollutants In this study, batch adsorption of Acid Red 88 onto walnut shells as a low cost adsorbent was investigated The effect of various experimental parameters such as initial dye concentration 25, 50, 100, 150 mg/L , adsorbent dosage 5, 10, 20, 35 g/L and pH 4, 6, 8 was evaluated on dye adsorption using full factorial experiment design The adsorption data were collected by means of spectrophotometer The results showed that walnut shells have the capacity to remove approximately 95 percent of acid red 88 after 90 minute of adsorption process in a batch system at the optimum experimental condition C = 150 mg/L, Adsorbent dosage = 35 g/L at pH = 4 While the change in pH did not significantly affect the total dye removal, adsorbent dosage showed to be the most effective factor Equilibrium data were achieved by isotherms namely Langmuir and Freundlich models
کلیدواژهها
نویسندگان
F.S Eslamian
Graduate Student, Department of Civil Engineering, Isfahan University of Technology, Isf , Iran
A Taebi
Professor, Department of Civil Engineering, Isfahan University of Technology, Isfahan, Iran
H. Hasheminejad
Assistant Professor, Department of Civil Engineering, Isfahan University of Technology, Isf , Iran
S.S Eslamian
Associate Professor, Department of Water, Isfahan University of Technology, Isfahan, Iran
شیوه ارجاع
Eslamian, F.S and Taebi, A and Hasheminejad, H. and Eslamian, S.S,1391,Removal of Acid Red 88 from Aqueous Solutions by Walnut Shells,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان