Leaching properties of fly ash from Duvha power station in South Afric

Presenter Information

Jabulani Veloso de Matsimbe, Department of Civil Engineering Science, Faculty of Engineering and the Built Environment, University of JohannesburgFollow
Megersa Melo de Dinka, Department of Civil Engineering Science, Faculty of Engineering and the Built Environment, University of JohannesburgFollow
David Caetano Olukanni, Department of Civil Engineering, Covenant UniversityFollow
Innocent Oliveira Musonda, University of JohannesburgFollow

Session

Civil Engineering, Infrastructure and Environment

Description

Fly ash and phosphogypsum are abundantly available in South Africa. However, landfilled industrial waste materials interact with the environment leading to groundwater, air, and soil pollution. This study aims to determine and quantify the heavy metal concentrations in fly ash from the Duvha power station and compare the results with US EPA regulatory limits. The TCLP and ICP-MS methods are used for leachate measurements. The results showed that the fly ash can be considered non-hazardous since the amounts of toxic elements such as Hg, Pb, Cu, Cd, Zn, Ni, As, P, Co, Se, and Mn are below the US EPA limits. The study findings can help policymakers manage fly ash disposal and/or management thereby reducing the environmental impact.

Keywords:

Heavy metals, waste management, supplementary cementitious material

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-550-95-6

Location

UBT Lipjan, Kosovo

Start Date

28-10-2023 8:00 AM

End Date

29-10-2023 6:00 PM

DOI

10.33107/ubt-ic.2023.373

Recommended Citation

Matsimbe, Jabulani Veloso de; Dinka, Megersa Melo de; Olukanni, David Caetano; and Musonda, Innocent Oliveira, "Leaching properties of fly ash from Duvha power station in South Afric" (2023). UBT International Conference. 38.
https://knowledgecenter.ubt-uni.net/conference/IC/civil/38