Removal of Cu(II) from leachate using natural zeolite as a landfill liner material

Turan N. G., Ergun O. N.

JOURNAL OF HAZARDOUS MATERIALS, cilt.167, sa.1-3, ss.696-700, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 167 Sayı: 1-3
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jhazmat.2009.01.047
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.696-700
  • Anahtar Kelimeler: Hazardous solid waste, Landfill, Liner materials, Heavy metals, Kinetics, COPPER FLOTATION WASTE, HYDRAULIC CONDUCTIVITY, COMPACTED CLAY, BASIC DYE, COMPETITIVE ADSORPTION, FLY-ASH, BENTONITE, VITRIFICATION, KINETICS, SORPTION
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

All hazardous waste disposal facilities require composite liner systems to act as a barrier against migration of contaminated leachate into the subsurface environment. Removal of copper(II) from leachate was studied using natural zeolite. A serial of laboratory systems on bentonite added natural zeolite was conducted and copper flotation waste was used as hazardous waste. The adsorption capacities and sorption efficiencies were determined. The sorption efficiencies increased with increasing natural zeolite ratio. The pseudo-first-order, the pseudo-second-order, Elovich and the intra-particle diffusion kinetic models were used to describe the kinetic data to estimate the rate constants. The second-order model best described adsorption kinetic data. The results indicated that natural zeolite showed excellent adsorptive characteristics for the removal of copper(II) from leachate and could be used as very good liner materials due to its high uptake capacity and the abundance in availability. (C) 2009 Elsevier B.V. All rights reserved.