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Description
  • Uvolňování reaktivního fosforu (P) z anoxických sedimentů v hypolimniu může být nízké nebo uměle sníženo v případě přirozeně vysokých nebo uměle zvýšených koncentrací hydroxidů Al. Sekvenční extrakce forem P, Al a Fe ze sedimentů pomocí H2O, NaHCO3 + Na2S2O4 (BD) a NaOH při 25 °C ukázala, že pouze malé množství P je ze sedimentu uvolnitelné během anoxie, pokud je molární poměr Al(NaOH):Fe(BD) >3 a nebo molární poměr Al(NaOH):P(H2O+BD) >25. Tyto poměry mohou být použity jako odhad schopnosti sedimentu uvolňovat P v anoxických podmínkách a pro určení potřebné dávky Al k jeho případnému zabránění. (cs)
  • Hypolimnetic release of reactive phosphorus (P) from anoxic sediments may be naturally low or artificially reduced by naturally high or artificially elevated concentrations of aluminum hydroxide in the sediment. Sequential extractions of sediment P, Al, and Fe using water (H2O), bicarbonate-dithionite (BD), and NaOH (at 25 °C) showed that negligible amounts of P would be released from lake sediments during hypolimnetic anoxia if either: (1) the molar Al(NaOH):Fe(BD) ratio is >3, or (2) the molar Al(NaOH):P(H2O+BD) ratio is >25. These ratios can be used as operational targets for estimation of sediment P release potential and Al dosing of P-rich sediment to prevent hypolimnetic P release under anoxic conditions.
  • Hypolimnetic release of reactive phosphorus (P) from anoxic sediments may be naturally low or artificially reduced by naturally high or artificially elevated concentrations of aluminum hydroxide in the sediment. Sequential extractions of sediment P, Al, and Fe using water (H2O), bicarbonate-dithionite (BD), and NaOH (at 25 °C) showed that negligible amounts of P would be released from lake sediments during hypolimnetic anoxia if either: (1) the molar Al(NaOH):Fe(BD) ratio is >3, or (2) the molar Al(NaOH):P(H2O+BD) ratio is >25. These ratios can be used as operational targets for estimation of sediment P release potential and Al dosing of P-rich sediment to prevent hypolimnetic P release under anoxic conditions. (en)
Title
  • Aluminum control of phosphorus sorption by lake sediments
  • Vliv hliníku na schopnost jezeních sedimentů vázat fosfor (cs)
  • Aluminum control of phosphorus sorption by lake sediments (en)
skos:prefLabel
  • Aluminum control of phosphorus sorption by lake sediments
  • Vliv hliníku na schopnost jezeních sedimentů vázat fosfor (cs)
  • Aluminum control of phosphorus sorption by lake sediments (en)
skos:notation
  • RIV/60077387:_____/05:00025565!RIV06-AV0-60077387
http://linked.open.../vavai/riv/strany
  • 8784;8789; S3
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA206/03/1583), Z(AV0Z60170517)
http://linked.open...iv/cisloPeriodika
  • 22
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 511821
http://linked.open...ai/riv/idVysledku
  • RIV/60077387:_____/05:00025565
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • aluminum; phosphorus; sediments (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [8BA5661D908F]
http://linked.open...i/riv/nazevZdroje
  • Environmental Science and Technology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 39
http://linked.open...iv/tvurceVysledku
  • Hejzlar, Josef
  • Kopáček, Jiří
  • Norton, S. A.
  • Borovec, Jakub
  • Amirbahman, A.
  • Ulrich, K.-U.
http://linked.open...n/vavai/riv/zamer
issn
  • 0013-936X
number of pages
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