Tannery wastewater sediments produced by clinoptiolite/polyacrylamide aided flocculation as a clay additive in brick making


Köseoğlu K. , Cengizler H., İsrail L. İ. , Polat H.

Journal of the Australian Ceramic Society, cilt.53, ss.719-731, 2017 (SCI Expanded İndekslerine Giren Dergi)

  • Cilt numarası: 53
  • Basım Tarihi: 2017
  • Dergi Adı: Journal of the Australian Ceramic Society
  • Sayfa Sayıları: ss.719-731

Özet

Toxic tannery wastewater(s) (TWW) pose(s) a great risk to the environment. This study explores the potential of mitigating the harmful effects of TWW through sedimentation using clinoptiolite in the presence of various anionic, cationic and non-ionic flocculants with different molecular weights and charge densities followed by encapsulation in a brick structure for stability. Compressive strength (CS), size reduction after firing (SRAF), water absorption (WA) and colouring parameters of bricks were determined. X-Ray diffraction (XRD) and scanning electron microscopy (SEM)–energy dispersive X-ray (EDX) analyses were conducted on brick bodies. Kinetic leaching experiments were conducted for possible heavy metal release from the bricks. Bricks containing 10 wt% leather waste and 5 wt% clinoptiolite sintered at 800 °C instead of 920 °C possessed similar properties to the standard brick (SB).