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@ARTICLE{Unold:5523,
      author       = {Unold, M. and Simunek, J. and Kasteel, R. and Groeneweg, J.
                      and Vereecken, H.},
      title        = {{T}ransport of {M}anure-{B}ased {A}pplied {S}ulfadiazine
                      and {I}ts {M}ain {T}ransformation {P}roducts in {S}oil
                      {C}olumns},
      journal      = {Vadose zone journal},
      volume       = {8},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {PreJuSER-5523},
      pages        = {677 - 689},
      year         = {2009},
      note         = {We acknowledge the German Research Foundation (DFG) for
                      their financial support (FOR566), Bayer HealthCare
                      (Wuppertal, Germany) for providing the
                      <SUP>14</SUP>C-labeled sulfadiazine, BayerCropScience AG for
                      the performance of the SDZ feeding experiment, and the
                      Division of Soil Science of INRES at the University of Bonn
                      for the measurements Thorsten Buttner, Stefan Masjosthusman,
                      Kavita Mayekar and Maja Stiefelhagen for their assistance in
                      the laboratory; and Jurgen Holtkemeier and Ansgar Weuthen
                      for building the experimental setup.},
      abstract     = {Solute displacement experiments with the antibiotic
                      sulfadiazine (SDZ) and its main transformation products in
                      were performed to investigate the influence of manure on SDZ
                      transport. Either pig manure sulfadiazine
                      (4-amino-N-2-pyrimidinyl-benzenesulfonamide), and its main
                      transformation products C-14-4-OH-SDZ C-14-N-Ac-SDZ, or a
                      C-14-SDZ solution was incorporated in the first centimeter
                      of undisturbed and repacked which were then irrigated.
                      Breakthrough curves (BTCs) of C-14, SDZ, 4-OH-SDZ, N-Ac-SDZ
                      and 4-[2-iminopyrimidine -1(2H)-yl]-anilin were measured.
                      The C-14 distributions vs. depths were determined after the
                      conclusion of experiments. An application of SDZ together
                      with manure resulted in lower peak values of the C-14 BTCs
                      slightly lower amount of eluted mass. In the experiments
                      with manure, the C-14 concentrations in the of the soil
                      columns were higher, probably due to the filtration of
                      manure particles onto which SDZ or its transformation
                      products were sorbed. The transformation products showed a
                      relatively high leaching potential similar Cotransport with
                      organic particles seemed to be of minor relevance for the
                      eluted amounts of solutes. All modeled using a numerical
                      model that considered degradation chains from N-Ac-SDZ into
                      SDZ and from SDZ OH-SDZ, as well as one reversible and one
                      irreversible kinetic sorption site for each solute. The
                      applied model fitted the BTCs of SDZ and its transformation
                      products reasonably well. The fitting process revealed a
                      high mobility of and its transformation products. While
                      N-Ac-SDZ degradation into SDZ was fast and no extended
                      tailing of N-Ac-SDZ was observed, the transport behavior of
                      4-OH-SDZ was similar to that of SDZ.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793 / $I:(DE-82)080012_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences / Soil Science / Water Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000268871900015},
      doi          = {10.2136/vzj2008.0122},
      url          = {https://juser.fz-juelich.de/record/5523},
}