ISSN: 1304-7191 | E-ISSN: 1304-7205
Removal of Co(II) And Se(VI) from Raw Metal and Glass Industry Wastewaters Using Nano-Sio2/Zro2-Calcium Alginate Aerogels
1Dokuz Eylül University, Department of Mechanical, Engineering, Buca, IZMIR
Sigma J Eng Nat Sci 2018; 36(1): 63-74
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By doping ZrO2 to the SiO2 with aerogel; the Co(II) and Se(VI) from metal and glass industry wastewaters can be removed due their large surface area and high pore volume. For maximum Se(VI) and Co(II) adsorptions (99% and 96%) the optimum Nano-SiO2 / ZrO2-Calcium Alginate Aerogel composite concentrations was found as 4 mg/l, at a pH of 6.0 at a temperature of 80 0C after 45 min contact time. Nano- SiO2 / ZrO2-Calcium Alginate Aerogel were reused with the percentages of 83 % and 87% for Co(II) and Se(VI), respectively after four sequential utilisation. This reduce the treatment cost by 38%.