REMOVAL OF Co(II) AND Se(VI) FROM RAW METAL AND GLASS INDUSTRY WASTEWATERS USING NANO-SiO2 / ZrO2-CALCIUM ALGINATE AEROGELS

Akçağlar S.

SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI, cilt.36, sa.1, ss.63-74, 2018 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 1
  • Basım Tarihi: 2018
  • Dergi Adı: SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Academic Search Premier, Directory of Open Access Journals
  • Sayfa Sayıları: ss.63-74
  • Anahtar Kelimeler: Co(II), Se(VI), Metal Industry Wastewater, Glass Industry Wastewater, Adsorption, Nano-SiO2 / ZrO2-Calcium Alginate Aerogel, Reuse, Cost, SELENITE, WATER, SORPTION, CARBON
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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 degrees C 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%.