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Your search keyword '"Nigéus, Susanne"' showing total 4 results
Start Over Author "Nigéus, Susanne" Topic field application
4 results on '"Nigéus, Susanne"'

3. Monitoring a field application of a Green Liquor Dregs-till mixture in a sealing layer on top of sulfidic mine waste

Author

Nigéus, Susanne and Maurice, Christian

Subjects
Environmental Engineering, Monitoring, Mine waste, Industrial residues, Naturresursteknik, ARD, Green Liquor Dregs, Field application
Abstract

Sul dic mine waste le unattended and in contact with oxygen oxidize and have potential to produce acid rock drainage (ARD). A typical method in Sweden to stop sul de oxidation is to apply a dry cover on top of the mine waste. Using the non-hazardous industrial residue Green Liquor Dregs (GLD) in the cover is useful for the mining industry and the industry providing the residue and a large bene t for the environment. In this study, the e ectiveness of a mixture of till and 10 wt. % of GLD in a dry cover was studied by monitoring temperature, oxygen- and moisture content. e conclusion is that the sealing layer in una ected by frost, the oxygen concentrations are decreasing with time, but not in depth and the sealing layer with GLD-till mixture seem to be nearly saturated. paperChain GLAD - MISTRA Closing the loop

Published
2018

4. Dimensioning and construction of a sealing layer made of green liquor dregs amended till--Remediation of sulfidic mine waste.

Author

Nigéus, Susanne, Maurice, C., Lindblom, J., and Mácsik, J.

Abstract

Using nonhazardous industrial residues in mine waste remediation is beneficial not only for the mining industry, where substantial amounts of mine waste generated have the potential to produce acid rock drainage and pollute the environment, but also the providing industry, minimizing the landfilled waste. In this study green liquor dregs (GLD), residue from 15 different paper mills, were characterized to valorize the GLD as a potential product as a cover material. Also in the study, one of the GLDs and a local till were characterized to determine the optimal mixture of GLD amended till to be used in a field application at the closed Näsliden Mine in northern Sweden. The study concluded 10 percent GLD amended till to be the optimal recipe, and this was successfully applied at the Näsliden mine waste dump. However, the great variability in the characteristics of GLD creates challenges if it is to be valorized as a product. [ABSTRACT FROM AUTHOR]

Published
2024
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