Please use this identifier to cite or link to this item: http://hdl.handle.net/11513/340
Title: Adsorption of Fluoride on the Raw and Modified Cement Clay
Authors: Atasoy, Ayşe Dilek
Özdemir Şahin, Müge
Keywords: Batch method; Clay modification; Defluoridation; Isotherms; Local adsorbent
Issue Date: 2013
Publisher: Clean – Soil Air Water
Abstract: Adsorption of fluoride (F) on the raw and modified local cement clay was investigated by batch method. Modified clays were prepared through calcination, using the Na and Mg saturated (C-Na, C-Mg) clay at 500 and 850°C (C-500, C-850) and calcination of Mg incorporated clay at 500°C (C-Mg-500). The equilibration time was attained in 5 h. Adsorption of F increased with increasing adsorbent dose. Decrease of the initial F concentration resulted in an increasing amount of F adsorption. F adsorption isotherms fitted well with both Freundlich and Langmuir models. Low F adsorption was obtained on the raw, incorporated or calcined clays. However maximum F adsorption was found for C-Mg-500, with Kf and Q0 values of 0.27 and 1.69, respectively. This work indicated that the calcination of incorporated clay with Mg increased the F adsorption significantly, due to increased and stabilized positive sites.
URI: http://hdl.handle.net/11513/340
Appears in Collections:Çevre Mühendisliği

Files in This Item:
File Description SizeFormat 
Adsorption of fluoride on the raw and modified cement clay-Dilek Atasoy.pdf325.07 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.