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

Köseoglu K., Cengizler H., Israil L., Polat H.

Journal of the Australian Ceramic Society, vol.53, no.2, pp.719-731, 2017 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 2
  • Publication Date: 2017
  • Doi Number: 10.1007/s41779-017-0085-z
  • Journal Name: Journal of the Australian Ceramic Society
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.719-731
  • Keywords: Brick, Clinoptiolite, Leather residues, Polyacrylamide, Sedimentation
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

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).