Removal of copper(II) and cadmium(II) ions from aqueous solutions by biosorption onto pine cone

Degirmen G., Kilic M., Cepeliogullar O., PÜTÜN A. E.

WATER SCIENCE AND TECHNOLOGY, cilt.66, sa.3, ss.564-572, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Sayı: 3
  • Basım Tarihi: 2012
  • Doi Numarası: 10.2166/wst.2012.210
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.564-572
  • Anahtar Kelimeler: biomass, biosorption, heavy metal, pine cone, EQUILIBRIUM, BIOMASS, CD(II), ADSORPTION, PB(II), POWDER, SHELL
  • Anadolu Üniversitesi Adresli: Evet

Özet

In this study, the removal of copper(II) and cadmium(II) ions from aqueous solutions by biosorption onto pine cone was studied. Variables that affect the biosorption process such as pH, biosorbent dosage, initial metal ion concentration, contact time and temperature of solution were optimized. Experimental data were fitted to Langmuir, Freundlich, Dubinin Radushkevich and Temkin isotherm models to investigate the equilibrium isotherms. Pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models were used to determine the biosorption mechanism. The thermodynamics of biosorption were studied for predicting the nature of biosorption. Experimental results showed that pine cone could be evaluated as an alternative precursor for removal of heavy metal ions from aqueous solutions, due to its high biosorption capacity, availability, and low cost.