An alternative source of adsorbent for the removal of dyes from textile waters: Posidonia oceanica (L.)

Cengiz S., Tanrıkulu F., AKSU S.

CHEMICAL ENGINEERING JOURNAL, vol.189, pp.32-40, 2012 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 189
  • Publication Date: 2012
  • Doi Number: 10.1016/j.cej.2012.02.015
  • Journal Name: CHEMICAL ENGINEERING JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.32-40
  • Keywords: Posidonia oceanica (L.), Dye adsorption, Wastewater treatment, Astrazon Red, BASIC RED 46, METAL-COMPLEXED DYE, AQUEOUS-SOLUTION, METHYLENE-BLUE, ADSORPTION-ISOTHERMS, BIOSORPTION, EQUILIBRIUM, KINETICS, SORPTION, VIOLET
  • Akdeniz University Affiliated: Yes

Abstract

The dead leaves of Posidonia oceanica (Linnaeus) Delile which is an endemic species in the Mediterranean sea were used as an alternative and low cost biomaterial for removal of Astrazon Red from wastewaters. Experiments were performed to investigate the impact of some parameters such as contact time, pH, adsorbent dosage, etc. on the adsorption of Astrazon Red. Kinetic experiments revealed that the adsorption of Astrazon Red onto P. oceanica can be described with pseudo second-order model and the equilibrium isotherm data were well described by the Langmuir model. The maximum adsorption capacity of the biomass was found to be 68.97 mg/g at 25 degrees C. The results presented, that this waste material accumulated seasonally on the beaches may be a suitable adsorbent for decolorization of industrial effluents due to its low cost and sufficient adsorption capacity. (C) 2012 Elsevier B.V. All rights reserved.

The dead leaves of Posidonia oceanica (Linnaeus) Delile which is an endemic species in the Mediterranean sea were used as an alternative and low cost biomaterial for removal of Astrazon Red from wastewaters. Experiments were performed to investigate the impact of some parameters such as contact time, pH, adsorbent dosage, etc. on the adsorption of Astrazon Red. Kinetic experiments revealed that the adsorption of Astrazon Red onto P. oceanica can be described with pseudo second-order model and the equilibrium isotherm data were well described by the Langmuir model. The maximum adsorption capacity of the biomass was found to be 68.97 mg/g at 25 degrees C. The results presented, that this waste material accumulated seasonally on the beaches may be a suitable adsorbent for decolorization of industrial effluents due to its low cost and sufficient adsorption capacity. (C) 2012 Elsevier B.V. All rights reserved.