Lager, Tanja (2004): Experimental data from column and batch samples. PANGAEA, https://doi.org/10.1594/PANGAEA.776653, Supplement to: Lager, T (2004): Predicting the source strength of recycling materials within the scope of a seepage water prognosis by means of standardized laboratory methods. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 239, 141 pp, urn:nbn:de:gbv:46-diss000101449
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The presented thesis was written in the frame of a project called 'seepage water prognosis'. It was funded by the Federal Ministry for Education and Science (BMBF). 41 German institutions among them research institutes of universities, public authorities and engineering companies were financed for three years respectively. The aim was to work out the scientific basis that is needed to carry out a seepage water prognosis (Oberacker und Eberle, 2002). According to the Federal German Soil Protection Act (Federal Bulletin, 1998) a seepage water prognosis is required in order to avoid future soil impacts from the application of recycling products. The participants focused on the development of either methods to determine the source strength of the materials investigated, which is defined as the total mass flow caused by natural leaching or on models to predict the contaminants transport through the underlying soil. Annual meetings of all participants as well as separate meetings of the two subprojects were held.
The department of Geosciences in Bremen participated with two subprojects. The aim of the subproject that resulted in this thesis was the development of easily applicable, valid, and generally accepted laboratory methods for the determination of the source strength. In the scope of the second subproject my colleague Veith Becker developed a computer model for the transport prognosis with the source strength as the main input parameter.
Delay, Markus; Lager, Tanja; Schulz, Horst D; Frimmel, Fritz H (2007): Comparison of leaching tests to determine and quantify the release of inorganic contaminants in demolition waste. Waste Management, 27(2), 248-255, https://doi.org/10.1016/j.wasman.2006.01.013
Lager, Tanja; Delay, Markus; Karius, Volker; Hamer, Kay; Frimmel, Fritz H; Schulz, Horst D (2006): Determination and quantification of the release of inorganic contaminants from municipal waste incineration ash. Acta hydrochimica et hydrobiologica, 34(1-2), 73-85, https://doi.org/10.1002/aheh.200500610
Lager, Tanja; Hamer, Kay; Schröter, Jürgen; Schulz, Horst D (2003): Predicting the source strength of different recycling materials - methods and preliminary results. In: Schulz, H D; Hadeler, A (eds.) Geochemical processes in soil and groundwater - Measurement - Modelling - Upscaling (Proceedings GeoProc2002), Wiley-VCH Verlag, ISBN-10: 3-527-27766-8, 450-467
The German Federal Soil Protection Act (Federal Bulletin, 1998) demands a prediction of the transport of pollutants with the seepage water if waste materials are reused. Within the framework of a program funded by the Federal Ministry for Education and Science (BMBF) called 'Seepage Water Prognosis' methods to obtain relevant parameters for the prediction of the transport of pollutants through the unsaturated zone should be employed, compared and, if required, refined. Our investigations on diverse contaminated materials aim at the determination of their source strength and temporary variations. The three materials investigated in this project are (1) sediment dredged from the port of the city of Bremen, (2) municipal waste incineration ash, and (3) demolition waste. The study presented here focuses on inorganic contaminants. Crucial are the pH and Eh conditions as well as the liquid/solid ratio. Four batch tests, the DEV S4 test, the soil saturation extract, ammonium-nitrate extract, the pH-stat test, and column experiments were performed and compared. The acid neutralisation capacity is determined by means of pH-stat tests. Thus the time period until a soil horizon is acidified can be calculated. The oxidation and reduction capacity can be calculated on the basis of the potential electron transfer of redox reactions and thus enable a prediction when a sediment layer will be oxidised or reduced. In this paper we focus on the presentation of the laboratory methods. Preliminary results of the batch experiments are presented. In addition, results of the pore water analysis of the fine fraction of harbour sediments, providing the most realistic estimation of the source strength gained by dialysis and centrifugation, are shown.
Datasets listed in this Collection
- Lager, T (2004): A 126.96.36.199. Data of the saturated column experiments with the sandy fraction of harbour sediments - flow-path sampling after 282 days - liquid/solid ratio, electric conductivity, pH and Eh value, inorganic carbon, dissolved organic carbon and anions. https://doi.org/10.1594/PANGAEA.776616
- Lager, T (2004): A 188.8.131.52. Data of the saturated column experiments with the sandy fraction of harbour sediments - flow-path sampling after 90 days - liquid/solid ratio, electric conductivity, pH and Eh value, inorganic carbon, dissolved organic carbon and anions. https://doi.org/10.1594/PANGAEA.776617
- Lager, T (2004): A 184.108.40.206. Data of the unsaturated column experiments with the sandy fraction of harbour sediments - flow-path sampling after 24 days - liquid/solid ratio, electric conductivity, pH and Eh value, inorganic carbon, dissolved organic carbon and anions. https://doi.org/10.1594/PANGAEA.776626