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Title (Primary) Chemical changes in sediment pore-waters of an acidic mining lake after addition of organic substrate and lime for stimulating lake remediation
Author Herzsprung, P.; Friese, K.; Frömmichen, R.; Göttlicher, J.; Koschorreck, M.; von Tümpling, W.; Wendt-Potthoff, K.;
Journal Water Air and Soil Pollution: Focus
Year 2002
Department SEEFO; FLOEK; GM;
Volume 2
Issue 3
Language englisch;
Abstract In the past five years, enclosures have been installed in an acidic mining lake in Lusatia to investigate insitu remediation processes. They were treated with straw, withstraw and Carbokalk, or with Carbokalk alone, where Carbokalkis a by-product of the sugar industry (solid precipitate ofnon-sugars after lime clarification of extracted sugar beetjuice). Sediment samples were taken as cores to get informationabout the behaviour of organic and inorganic components insediment pore-water with depth. Vertical distributions of pH,soluble reactive phosphate, nitrate, ammonium, silica,aluminium, iron, manganese, calcium, magnesium, sodium,potassium, sulphate, and DOC were measured. The resultingprofiles, each consisting of 15 data points at differentdepths, were compared by cluster analysis. The similarities ofsediment cores from different treated enclosures relating toprofiles of chemical components were discussed. Increasedconcentrations of potassium and sulphate were found in pore-water after substrate treatment. The data imply dissolution ofpotassium iron sulphate hydroxide minerals (jarosite) after anincrease of pH caused by dissolution of lime and by sulphatereducing processes which were stimulated by organic substrateaddition.
ID 5589
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=5589
Herzsprung, P., Friese, K., Frömmichen, R., Göttlicher, J., Koschorreck, M., von Tümpling, W., Wendt-Potthoff, K. (2002):
Chemical changes in sediment pore-waters of an acidic mining lake after addition of organic substrate and lime for stimulating lake remediation
Water Air Soil Poll.: Focus 2 (3), 123 - 140