TY  - JOUR
TI  - Biosorption of cadmium and copper by Aspergillus spp. isolated from industrial ceramic waste sludge
AB  - Under proper conditions, fungi can act as a good biosorbent for different heavy metals. In the present study,Aspergillus spp. have been isolated from ceramic industrial waste sludge and the tolerance of the fungi for copper andcadmium metals were examined. The experiments were carried out at 25 °C, pH=4-4.5 for Cu(II), pH=6 for Cd(II),biosorbent dose of 2.5 g, initial metal concentration of Cd (II) was 1 mM and Cu(II) was 5 mM. The removal efficienciesfor cadmium and copper with two Aspergillus strains were found to be 90-95% and 85-90%, respectively. The sorptioncapacities of live and dead fungi for copper were 5.3676 mg g-1, 18.661 mg g-1and for cadmium were 0.1977 mg g-1,0.1772 mg g-1respectively. FTIR analyses have showed that copper ions bound to vinyl compounds (950-900 cm-1) andcadmium ions bound to primer amides (1420-1400 cm-1), mostly. Considering biosorption results, Langmuir andFreundlich isotherm models have been described and it was clearly seen that none of the isotherm models have fitted theexperimental data. The metal ion binding areas of the cell surface of fungi were determined by FTIR. SEM monitoringand EDX analysis were carried out. EDX results confirmed the biosorption of copper and cadmium.
AU  - Malkoç, Semra
AU  - HASGÜL, Elif
AU  - DEDE, Alper
AU  - GUVEN, KIYMET
AU  - GÜVEN, Alaettin
DO  - 10.5505/biodicon.2019.42714
PY  - 2019
JO  - Biological Diversity and Conservation
VL  - 12
IS  - 3
SN  - 1308-5301
SP  - 44
EP  - 56
DB  - TRDizin
UR  - http://search/yayin/detay/318394
ER  -