Influence of the chemical composition of leachates on the results of ecotoxicity tests for different slag types

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27200%2F24%3A10255228" target="_blank" >RIV/61989100:27200/24:10255228 - isvavai.cz</a>

Alternative codes found

RIV/25870807:_____/24:N0000049 RIV/61989100:27350/24:10255228 RIV/61989100:27360/24:10255228 RIV/61989100:27640/24:10255228 and 2 more

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0301479724017171?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0301479724017171?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jenvman.2024.121731" target="_blank" >10.1016/j.jenvman.2024.121731</a>

Result language

angličtina

Original language name

Influence of the chemical composition of leachates on the results of ecotoxicity tests for different slag types

Original language description

In this study, four ecotoxicological tests on Vibrio fischeri bacteria, Sinapis alba L. (white mustard), Daphnia magna S. (daphnia&apos;s) and earthworms were performed for three types of aqueous slag (ladle, blast furnace and converter) leachates with two-grain sizes (&lt;4 mm, &lt;10 mm). Concentrations of toxic elements and concentrations of Cr(VI), Ca, Na, Al, and other ions were determined. The raw slags were analyzed using X-ray fluorescence spectroscopy (XRFS), and major substances were determined by X-ray powder diffraction (XRD). The aqueous slag leachates passed ecotoxicological tests and met the required criteria, showing no toxicity to Vibrio fischeri and complying with white mustard test criteria. According to the results of the ecotoxicity tests with daphnia, the blast furnace slag samples were not ecotoxic, while two other slag samples were found to be entirely compliant. Characterization of the slags showed that the effect of element/ion leachability and slag grain size is essential. Biplot principal component analysis (PCA) showed that grain size does not significantly affect the separation of individuals on the plane. A positive correlation on toxicity was found with pH, conductivity, calcium content, dissolved content, salinity and fluoride concentration, whereas a negative correlation was found with magnesium concentration, dissolved organic carbon and potassium concentration. The effective concentration at 50% inhibition (EC50) value for Vibrio fischeri correlated with the first dimension of bivariate assessment. In summary, it was found that the investigated slags can be effectively reused as they comply with regulations and do not endanger the environment.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Environmental Management

ISSN

0301-4797

e-ISSN

1095-8630

Volume of the periodical

366

Issue of the periodical within the volume

Neuveden

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

121731

UT code for WoS article

001267927700001

EID of the result in the Scopus database

2-s2.0-85197520370