Removal of some azo dyes from wastewater using PAC as adsorbent

DANIS U., Gurses A., CANPOLAT N.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.8, ss.358-365, 1999 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8
  • Basım Tarihi: 1999
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.358-365
  • Atatürk Üniversitesi Adresli: Evet

Özet

The mechanisms of decolorization of synthetic wastewaters, which contain the various azo dyes used in textile industries, by adsorption on powdered activated carbon (PAC) and the equilibrium adsorption isotherms for these dyes were investigated. The standard Gibbs free energy variations belong to the adsorption of the Orange P and Red Px dyes that have the highest and lowest adsorption capacities, on activated carbon/water interfaces were observed to be -22.17 kjmol(-1) and -19.62 kjmol(-1), respectively.