000011708 001__ 11708
000011708 005__ 20200715101817.0
000011708 0247_ $$2ISSN$$a1866-1793
000011708 0247_ $$2Handle$$a2128/3817
000011708 020__ $$a978-3-89336-663-7
000011708 037__ $$aPreJuSER-11708
000011708 041__ $$aEnglish
000011708 082__ $$a500
000011708 082__ $$a333.7
000011708 082__ $$a620
000011708 1001_ $$0P:(DE-Juel1)VDB72529$$aUnold, Myriam$$b0$$eCorresponding author$$gfemale$$uFZJ
000011708 245__ $$aExperiments and numerical studies on transport of sulfadiazine in soil columns
000011708 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2010
000011708 300__ $$aXVI, 115 S.
000011708 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis
000011708 3367_ $$0PUB:(DE-HGF)3$$2PUB:(DE-HGF)$$aBook
000011708 3367_ $$02$$2EndNote$$aThesis
000011708 3367_ $$2DRIVER$$adoctoralThesis
000011708 3367_ $$2BibTeX$$aPHDTHESIS
000011708 3367_ $$2DataCite$$aOutput Types/Dissertation
000011708 3367_ $$2ORCID$$aDISSERTATION
000011708 4900_ $$0PERI:(DE-600)2445288-9$$aSchriften des Forschungszentrums Jülich : Energie & Umwelt / Energy & Environment$$v81$$x1866-1793
000011708 502__ $$aUniv. Bonn, Diss., 2010$$bDr.$$cUniversität Bonn$$d2010
000011708 500__ $$aRecord converted from JUWEL: 18.07.2013
000011708 500__ $$aRecord converted from VDB: 12.11.2012
000011708 520__ $$aVeterinary antibiotics like sulfadiazine (SDZ) are used in large amounts worldwide. Excreted as parent compounds or in the form of metabolites they reach agricultural soils mainly via spreading of manure or sewage sludge and may be transported to the groundwater. Recently, antibiotics have been detected in several environmental compartments leading to an increasing concern about their hazardous effects. To asses the leaching potential of SDZ from soils into groundwater, knowledge on its transport processes in soils is necessary. Also the transport of its metabolites as well as possible transformation processes have to be considered. In this work transport experiments at the column scale were performed. Therefore, SDZ and pig manure were used to analyze the governing processes that affect the transport of SDZ in disturbed and undisturbed soil columns of a loamy sand and a silty loam. For this purpose the Hydrus model (Šimůnek et al., 2008) has been adapted and applied to the observed BTCs and resident concentrations. The occurrence of transformation products in the outflow of repacked soil columns of both soils was investigated in experiments with a SDZ-solution. For the prediction of the $^{14}$C-distribution in the repacked soil columns, empirical approaches to describe irreversible sorption were tested. Furthermore the influence of flow rate and concentration/applied mass on SDZ transport was investigated and the respective experiments were simultaneously described with a common set of parameters. In transport experiments with pig manure, the effect of pig manure on the transport of SDZ as well as the transport behavior of the main metabolites of SDZ present in pig manure, N-Ac-SDZ and 4-OH-SDZ, were investigated. Without considering a known photo-degradation product transformation was very low in both investigated soils. In soil columns where most of the $^{14}$C was found near the soil surface, the prediction of the $^{14}$C-concentration profiles was improved by applying two empirical models other than first-order to predict irreversible sorption. The application of SDZ at a higher flow rate led to higher eluted masses and concentrations compared to experiments conducted at a lower flow rate. The simultaneous fitting process with a three site attachment/detachment model revealed that although the same sorption mechanisms seem to occur in all experiments, their characteristic time scales were different, especially under transient flow conditions. As the main difference between experiments with manure and SDZ-solution an accumulation of $^{14}$C in the upper soil layer was found in the experiments with manure. The modeling process revealed a high mobility of both SDZ and its transformation products. While the transformation of N-Ac-SDZ into SDZ was fast and no extended tailing of N-Ac-SDZ was observed, the transport behavior of 4-OH-SDZ was similar to SDZ.
000011708 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000011708 655_7 $$aHochschulschrift$$xDissertation (Univ.)
000011708 8564_ $$uhttps://juser.fz-juelich.de/record/11708/files/Energie%26Umwelt_81.pdf$$yOpenAccess
000011708 8564_ $$uhttps://juser.fz-juelich.de/record/11708/files/Energie%26Umwelt_81.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess
000011708 8564_ $$uhttps://juser.fz-juelich.de/record/11708/files/Energie%26Umwelt_81.jpg?subformat=icon-180$$xicon-180$$yOpenAccess
000011708 8564_ $$uhttps://juser.fz-juelich.de/record/11708/files/Energie%26Umwelt_81.jpg?subformat=icon-640$$xicon-640$$yOpenAccess
000011708 909CO $$ooai:juser.fz-juelich.de:11708$$pdnbdelivery$$pVDB$$pdriver$$popen_access$$popenaire
000011708 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000011708 9141_ $$y2010
000011708 9131_ $$0G:(DE-Juel1)FUEK407$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0
000011708 9201_ $$0I:(DE-Juel1)VDB793$$d31.10.2010$$gICG$$kICG-4$$lAgrosphäre$$x1
000011708 970__ $$aVDB:(DE-Juel1)123023
000011708 980__ $$aVDB
000011708 980__ $$aConvertedRecord
000011708 980__ $$aphd
000011708 980__ $$aI:(DE-Juel1)IBG-3-20101118
000011708 980__ $$aUNRESTRICTED
000011708 980__ $$aJUWEL
000011708 980__ $$aFullTexts
000011708 9801_ $$aFullTexts
000011708 981__ $$aI:(DE-Juel1)IBG-3-20101118