A comparative investigation of lithium(I) biosorption properties of Aspergillus versicolor and Kluyveromyces marxianus

GÜNAN YÜCEL H., AKSU Z., Yalcinkaya G. B., ERTUĞRUL KARATAY S., DÖNMEZ G.

WATER SCIENCE AND TECHNOLOGY, cilt.81, sa.3, ss.499-507, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 81 Sayı: 3
  • Basım Tarihi: 2020
  • Doi Numarası: 10.2166/wst.2020.126
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Agricultural & Environmental Science Database, Analytical Abstracts, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chimica, Compendex, EMBASE, Environment Index, Geobase, MEDLINE, Pollution Abstracts, Public Affairs Index, Veterinary Science Database
  • Sayfa Sayıları: ss.499-507
  • Anahtar Kelimeler: Aspergillus versicolor, biosorption, fungus, Kluyveromyces marxianus yeast, lithium(I) ion, AQUEOUS-SOLUTION, MALACHITE-GREEN, HEAVY-METALS, CELL-WALL, RECOVERY, REMOVAL, BIOSORBENTS, ADSORBENT, BACILLUS, ISOTHERM
  • Ankara Üniversitesi Adresli: Evet

Özet

In the current batch study, lithium(I) ion sorption behaviors of Aspergillus versicolor fungus and newly isolated Kluyveromyces marxianus yeast were investigated comparatively. Surface and structural characterization studies of the biosorbents carried out with Fourier transform infrared spectrometer (FTIR), scanning electron microscope (SEM), surface area and zeta potential analyses showed that isolated K. marxianus yeast from salty wastes has more preferable properties (i.e. higher porosity, surface area and negativity) for cation sorption. Biosorption studies also supported this estimation; higher lithium(I) sorption capacities were obtained with K. marxianus cells at all experimental conditions studied. Rapid sorption profiles of the sorbents demonstrated that physical interaction is the main mechanism in this system. The effects of pH and initial lithium(I) concentration on the lithium(I) sorption capacities of biosorbents were examined. The maximum adsorption capacities of 347.9 and 409.2 mu mol lithium(I)/g biosorbent were obtained at an initial lithium(I) concentration of 20 mg/L at pH 9.0 using A. versicolor and K. marxianus, respectively. The equilibrium data fitted both Langmuir and Freundlich models in the concentration ranges studied. This study revealed that K. marxianus yeast can be used for effective, rapid and low cost capture process of lithium(I) ions from aqueous solutions.