Application of iron-rich natural clays in Camlica, Turkey for boron sorption from water and its determination by fluorimetric-azomethine-H method

Seyhan S., SEKİ Y., YURDAKOÇ M., MERDİVAN M.

JOURNAL OF HAZARDOUS MATERIALS, vol.146, pp.180-185, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 146
  • Publication Date: 2007
  • Doi Number: 10.1016/j.jhazmat.2006.12.008
  • Journal Name: JOURNAL OF HAZARDOUS MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.180-185
  • Keywords: boron, sorption, factorial design, iron-rich clay, AQUEOUS-SOLUTIONS, ION-EXCHANGE, ADSORPTION, REMOVAL, WASTE
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this study, iron-rich natural Camlica Bentonites, CB1 and CB2, were used for the sorption of boron in water samples. Boron was determined by newly progressed fluorimetric azomethine-H method. The optimum conditions found using factorial designs are pH 10, 45 degrees C, 0.250 g of clay and 20 mL of sample volume. It was found that 180 min is enough time for the equilibrium state to be reached in boron adsorption. At these conditions, boron sorption percentage was 80% for CB1 and 30% for CB2. The adsorption isotherms are well described by linear Freundlich model. Various geothermal waters in our country were also studied for boron sorption. (C) 2006 Elsevier B.V. All rights reserved.