Volume 3, Number 4 (8 2011)                   ijhe 2011, 3(4): 399-410 | Back to browse issues page


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Samarghandi M, Noori Sepehr M, Zarrabi M, Norouzi M, Amraie F. Mechanism and Removal Efficiency of C.I. Acid Blake 1 by Pumice Stone Adsorbent. ijhe. 2011; 3 (4) :399-410
URL: http://ijhe.tums.ac.ir/article-1-97-en.html

Abstract:   (6249 Views)

Backgrounds and Objectives: Treatment of colored wastewater is one of the important challenges of environmental engineers. Adsorption process is a key option for removal of organic matter from wastewater. The aim of present work was to investigate pumice stone as an adsorbent for removal of Acid Black 1 from aqueous solution.
Materials and Methods: Removal of Acid Black 1 by pumice stone was investigated. Acid Hyrdo Chloric(HCL) 1 N was used to increse adsorbent porosity. Various parameters such as pH, initial dye concentration and contact time were studied.
Results: Results showed that removal of Acid Black 1 was increased by increasing of contact time and initial dyeconcentration although it was decreased by increasing of pH. Experimental data was best fitted to Longmuir isotherm model (r2>0.98). Study of diffusion model revealed that intraparticle diffusion is rate-controlling step in removal of Acid Black 1 by pumice stone.
Conclusion : The results indicated that pumice stone was a dominant adsorbent for Acid Black 1 removal.

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Type of Study: Research | Subject: General
Received: 2010/07/14 | Accepted: 2010/10/9 | Published: 2013/07/8

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