Recovery of copper (II) and chromium (III,VI) from electroplating-industry wastewater by ion exchange

Yalcin S., Apak R., HIZAL J., AFSAR H.

SEPARATION SCIENCE AND TECHNOLOGY, cilt.36, sa.10, ss.2181-2196, 2001 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 10
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1081/ss-100105912
  • Dergi Adı: SEPARATION SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2181-2196
  • Anahtar Kelimeler: copper (II), chromium (VI), chromium (III), recovery, removal, electroplating-industry wastewater, ion exchange, wastewater treatment, TANNERY WASTES, HEAVY-METAL, REMOVAL, WATER, SEPARATION, RESINS, PRECONCENTRATION, SPECIATION, EFFLUENTS, CR(III)
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

Two laboratory-scale separation processes have been developed for the recovery of copper (II) from acidic and cyanide-containing alkaline wastewater of electroplating industries. Acidic bath wastes were treated with Dowex 50X8, a strongly acidic cation-exchange resin, and the retained copper was eluted with H2SO4. The cyanide-containing alkaline bath waste was first oxidized with excessive hypochlorite, then neutralized, and recovered by the use of Amberlite IRC-718 chelating resin. Copper was eluted with H2SO4.