Publication detail

The influence of alkaline activator on immmoblization of metals in alkali-activated blast furnace slag

BYSTRIANSKA, E. KOPLÍK, J.

Original Title

The influence of alkaline activator on immmoblization of metals in alkali-activated blast furnace slag

Type

conference paper

Language

English

Original Abstract

In this work the influence of alkaline activator on immobilization of lead and copper in alkali-activated blast furnace slag was investigated. A total of five alkali activators were used; sodium waterglass, potassium waterglass, sodium hydroxide, potassium hydroxide and sodium carbonate. The leaching test according to ČSN EN 12457 -4 was used to evaluate the level of immobilization of heavy metals, the leached solutions were analyzed by ICP-OES. For a better understanding of immobilization process, the selected samples were characterized by analytical methods (SEM, XPS). It was found that the degree of immobilization of Pb2+ and Cu2+ in AAS was very high regardless of the type of alkaline activator used. The high degree of immobilization is caused by formation of insoluble or poorly soluble lead and copper compounds in an alkaline environment while the insoluble compounds have been confirmed by SEM and XPS.

Keywords

Alkali-activated blast furnace slag, alkaline activators, immobilization, lead, copper

Authors

BYSTRIANSKA, E.; KOPLÍK, J.

Released

3. 6. 2020

Publisher

IOP Publishing

Location

Telč

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

1039

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012013/meta#references

Full text in the Digital Library

http://hdl.handle.net/11012/196529

BibTex

@inproceedings{BUT169252,
  author="Emília {Bystrianska} and Jan {Koplík}",
  title="The influence of alkaline activator on immmoblization of metals in alkali-activated blast furnace slag",
  booktitle="IOP Conference Series: Materials Science and Engineering",
  year="2020",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="1039",
  pages="1--8",
  publisher="IOP Publishing",
  address="Telč",
  doi="10.1088/1757-899X/1039/1/012013",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012013/meta#references"
}