TY - JOUR A1 - Krüger, Oliver A1 - Olberg, Sina A1 - Senz, R. A1 - Simon, Franz-Georg T1 - Comparison of stir bar sorptive extraction (SBSE) and solid phase micro extraction (SPME) for the analysis of polycyclic aromatic hydrocarbons (PAH) in complex aqueous matrices N2 - Stir bar sorptive extraction (SBSE) and solid phase microextraction (SPME) are well-established sample preparation methods for the analysis of polycyclic aromatic hydrocarbons in aqueous samples. However, complex matrices especially characterized by slurry particles and dissolved organic matter (DOM) can hamper the extraction of PAH with both SBSE and SPME and lead to different results. Thus, we produced aqueous eluates from PAH-contaminated soils differing in particle size distribution and organic matter content and determined the PAH concentration in the eluates with both SBSE and SPME. Furthermore, we tested the influence of filtration on the PAH analysis. The excess finding of PAH with SBSE compared to SPME ranged from −16.6 to 24.5 %. The differences increased after filtration. We found a strong positive correlation of the excess finding to the total organic carbon content (TOC) and a negative one to the pH value. The results indicate that SBSE is less affected by complex matrices than SPME. KW - Leaching tests KW - Complex environmental samples KW - Stir bar sorptive extraction KW - Solid phase microextraction KW - Polycyclic aromatic hydrocarbon (PAH) PY - 2015 DO - https://doi.org/10.1007/s11270-015-2670-5 SN - 0049-6979 SN - 0043-1168 VL - 226 IS - 12 SP - 397, 1 EP - 9 PB - Springer CY - Dordrecht AN - OPUS4-34971 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver A1 - Simon, Franz-Georg ED - Stegmann, R. ED - Rettenberger, G. ED - Kuchta, K. ED - Fricke, K. ED - Heyer, K.-U. T1 - Aufschluss, Trennung und Rückgewinnung von ressourcen-relevanten Metallen aus Rückständen thermischer Prozesse T2 - Deponietechnik 2012 - 8. Hamburger Abfallwirtschaftstage CY - Hamburg, Deutschland DA - 2012-01-31 KW - Ressourcen KW - Rostasche KW - Ersatzbaustoff PY - 2012 SN - 978-3-9812867-6-2 N1 - Serientitel: Hamburger Berichte – Series title: Hamburger Berichte VL - 37 SP - 177 EP - 186 PB - Abfall aktuell CY - Stuttgart AN - OPUS4-25880 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver A1 - Kalbe, Ute A1 - Berger, Wolfgang A1 - Simon, Franz-Georg A1 - López Meza, S. T1 - Leaching experiments on the release of heavy metals and PAH from C&D waste and MSWI bottom ash N2 - Leaching tests are fundamental tools for the assessment of long-term impact of contaminated waste materials on the soil-groundwater pathway. Waste materials should be tested under conditions equal to their actual application in re-use scenarios to achieve reliable results. Since the standards for leaching procedures available on international level so far are either not validated or considered inadequate in respect to coarse grained materials, new standards had to be developed. Therefore column percolation and batch test procedures have been standardized and validated to enable their introduction to new German regulations concerning waste management. Practical aspects of the test procedures as well as the boundary conditions compared to the already existing standards will be described. Examples including round robin test results will be given to justify the selection of the new specifications. T2 - 2nd International conference on hazardous and industrial waste management CY - Chania, Crete, Greece DA - 2010-10-05 KW - Leaching KW - Bioavailability KW - Column tests KW - Batch tests PY - 2010 IS - Session A, A5.1. SP - 1 EP - 8 AN - OPUS4-22128 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Berger, Wolfgang A1 - Simon, Franz-Georg T1 - Source term determination by leaching procedures - new developments in Germany T2 - Global waste management symposium CY - San Antonio, TX, USA DA - 2010-10-03 KW - Elutionsverfahren KW - Abfall PY - 2010 SP - 1 EP - 11(?) AN - OPUS4-22256 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Oliver A1 - Kalbe, Ute A1 - Berger, Wolfgang A1 - Simon, Franz-Georg A1 - Lopez Meza, Sarynna T1 - Leaching experiments on the release of heavy metals and PAH from soil and waste materials N2 - Leaching tests are fundamental tools for the assessment of long-term impact of contaminated waste materials on the soil-groundwater pathway. Experiments were carried out in the framework of standardization and validation of column percolation and batch test procedures, in particular concerning the stipulation of the experimental setup. The colloid release of column and batch experiments was compared and the influence of different column filling heights (12.5–50 cm) on the release of polycyclic aromatic hydrocarbons (PAH) from soil was studied, as well as the effect of varying contact times (2.5–16 h) on the release of chromium from construction and demolition (C&D) waste and municipal solid waste incineration (MSWI) bottom ash. The results indicate that filtration of the eluate, which is required for batch tests, does not always allow the simulation of the actual colloid amount in soil pore water. Medium column heights four times the inner diameter of the column seemed to provide reasonable equilibrium adjustment conditions and avoid major biodegradation. The release of chromium was only marginally affected by the contact time, varied between 0.115 and 0.150 mg/kg for demolition waste eluate at a liquid-to-solid ratio of approximately 5 L/kg. KW - Column tests KW - Batch tests KW - Waste materials KW - Leaching KW - Standardization PY - 2012 DO - https://doi.org/10.1016/j.jhazmat.2011.02.016 SN - 0304-3894 VL - 207-208 SP - 51 EP - 55 PB - Elsevier CY - Amsterdam AN - OPUS4-24030 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -