Hydraulic Conductivity of P-GCLs with Different Mass per Unit Area Values against Bauxite Liquor

Kayrak H. E., Aytekin T. C., ÖREN A. H.

6th International Conference on Environmental Geotechnology, Recycled Waste Materials, and Sustainable Engineering, EGRWSE 2025, Vigo, İspanya, 11 - 14 Haziran 2025, cilt.804 LNCE, ss.457-464, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 804 LNCE
  • Doi Numarası: 10.1007/978-3-032-15832-1_43
  • Basıldığı Şehir: Vigo
  • Basıldığı Ülke: İspanya
  • Sayfa Sayıları: ss.457-464
  • Anahtar Kelimeler: Bauxite liquor, Geosynthetic clay liner, Hydraulic conductivity, Mass per unit area, Red mud
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Red mud is a solid waste classified as hazardous obtained from bauxite ore. The red mud produced from bauxite ore processing for aluminum production is highly alkaline. In addition to this, red mud and its leachate contain heavy metals such as aluminum and iron. Red mud leachate can infiltrate soil or groundwater when not correctly stored. Due to its active chemicals, red mud poses a significant threat to aquatic ecosystems. Despite being a less-known material in Civil Engineering practice, red mud has become the subject of numerous studies in recent years. Particularly, hydraulic conductivity tests conducted with red mud leachate (also referred to as bauxite liquor in the literature) constitute the main focus of these studies. This study focuses on performing hydraulic conductivity tests using geosynthetic clay liners (GCLs) containing polymerized bentonite (P-GCLs). The aim is to determine the resistance of P-GCL against bauxite liquor with varying mass per unit area of bentonite (μbA).