Akademik Veri Yönetim Sistemi
AQUATIC SCIENCES and ENGINEERING, cilt.40, sa.4, ss.243-251, 2025 (ESCI, Scopus, TRDizin)
This work shows the biosorption activity of Chlorella vulgaris, cultivated photoheterotrophically in the presence of an agro-industrial waste, for biological removal of Chromium (Cr) found in high amounts in wastewater. Firstly, the optimization of microalgal growth was examined under photoheterotrophic (BG-11 medium and 0.5 g/L of carrot pomace (CP) sugar) and photoautotrophic (BG-11 medium) conditions. Several significant parameters for biosorption of Cr (VI) onto dry C. vulgaris biomass, such as different concentrations of Cr (VI) (from 5 to 100 mg/L), biosorbent concentration (from 1 to 3 g/L), contact time (0-480 min), and pH (2-10) were optimized. The highest dry weight of microalgae was 0.81 g/L under photoheterotrophic conditions containing CP. Using dry microalgal biomass photoheterotrophically cultivated, the best Cr (VI) bioremoval was obtained as 100% at pH 2 using 3 g/L biosorbent, and 5.5-20.71 mg/L initial Cr (VI) concentrations. These findings suggest that C. vulgaris is an effective biosorbent for heavy metal bioremediation and waste management.