Removal of Disperse Red 60 dye from aqueous solution using free and composite fungal biomass of Lentinus concinnus


BAYRAMOĞLU G. , Ozalp V. C. , Arica M. Y.

WATER SCIENCE AND TECHNOLOGY, cilt.75, sa.2, ss.366-377, 2017 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75 Konu: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.2166/wst.2016.529
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Sayfa Sayıları: ss.366-377

Özet

Lentinus concinnus biomass was immobilized to carboxyl derivative of cellulose, carboxymethyl cellulose (CMC), in the presence of FeCl3 (0.1 mol L-1) via ionic cross-linking. The beads containing immobilized fungal biomass were incubated at 30 degrees C for three days to permit growth of the fungus. The free and immobilized fungal biomass were tested for adsorption of Disperse Red 60 (DR-60) from aqueous solution using bare CMC beads as a control system. The maximum adsorption of DR-60 on the free and immobilized fungal biomass was observed at pH 6.0. The adsorption of DR-60 by the free, and immobilized fungal biomass increased as the initial concentration of DR-60 in the medium increased up to 100 mg/L. The maximum adsorption capacity of the CMC beads, the free and immobilized fungal biomass (i.e. composite beads) were found to be 43.4, 65.7, and 92.6 mg g(-1) dry sorbents, respectively. The equilibrium of the adsorption system was well described by Langmuir and Temkin isotherm models. Adsorption equilibrium was established in about 1.0 h. The adsorption of DR-60 on the fungal preparations followed pseudo-second-order kinetic model. It was observed that the immobilized fungal biomass has a high potential for the removal of DR-60 as a model dye from aqueous solution.