Properties and mechanisms of steel slag strengthening microbial cementation of cyanide tailings.
Cyanide tailings
Heavy metals
MICP
Steel slag
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Jan 2024
Jan 2024
Historique:
received:
23
03
2023
revised:
20
09
2023
accepted:
06
11
2023
medline:
27
11
2023
pubmed:
12
11
2023
entrez:
11
11
2023
Statut:
ppublish
Résumé
The advantages of microbial induced carbonate precipitation (MICP) as bio-cementation technology for tailings-solidification are under extensive investigation. In order to improve performance of bio-cementation, many strengthening materials were applied to the bio-cementation of tailings. Steel slag (SS) is a kind of industrial solid waste, its chemical composition and mineral composition are similar to cement, and it has a certain application prospect as an auxiliary cementing material. In this study, the properties and mechanism of SS strengthening MICP cementation of cyanide tailings (CT) were investigated. The results showed that Sporosarcina pasteurii growth is not inhibited by SS, and Sporosarcina pasteurii can promote the hydration reaction of SS, providing a suitable alkaline environment and Ca
Identifiants
pubmed: 37951407
pii: S0045-6535(23)02915-6
doi: 10.1016/j.chemosphere.2023.140645
pii:
doi:
Substances chimiques
Solid Waste
0
Steel
12597-69-2
Cyanides
0
Cadmium
00BH33GNGH
Lead
2P299V784P
Metals, Heavy
0
Carbonates
0
Calcium Carbonate
H0G9379FGK
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
140645Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.