Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Gas forming processes within lignite mining dumps
Autor Nitzsche, H.M.; Gläßer, W.; Harting, P.;
Journal / Serie Isotopes in Environmental and Health Studies
Erscheinungsjahr 2002
Department HDG;
Band/Volume 38
Heft 4
Sprache englisch;
Abstract Gas analyses of the soil atmosphere of lignite mining dumps yielded increased contents of carbon dioxide. To get information about the potential sources and the carbon dioxide releasing capacity of the dumps, samples of dump material were investigated for their contents and isotopic compositions of organic and inorganic carbon as well as the carbon dioxide in the soil atmosphere. The contents of organic and inorganic carbon were found to vary depending on type of dump material. The isotopic composition of the organic carbon ranges between −24.5 and −26.5‰, which is typical for humous materials. The carbonates are found to be of marine origin (δ13C: +0.5 to −1.1‰). By means of the isotope investigations it could be shown that the carbon dioxide in the lignite mining dump arises from these two different sources. Mixing ratios can be calculated using the isotope balance equation. Both reaction paths are associated with oxygen consumption and do not result in an increased gas pressure within the dump.
ID 5865
dauerhafte UFZ-Verlinkung
Nitzsche, H.M., Gläßer, W., Harting, P. (2002):
Gas forming processes within lignite mining dumps
Isot. Environ. Health Stud. 38 (4), 207 - 214