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  • 标题:Phosphate Sorption in Oxisols in Paraíba State, Brazil, Classified as Solution Equilibrium Phosphorus
  • 本地全文:下载
  • 作者:Lucia Helena Garófalo Chaves, Vinícius Batista Campos Mônica, Shirley da S. Sousa, D oroteu Honório Guedes Filho, Maria Alexandra Estrela, Adilson David de Barros
  • 期刊名称:Iranica Journal of Energy and Environment (IJEE)
  • 印刷版ISSN:2079-2115
  • 电子版ISSN:2079-2123
  • 出版年度:2012
  • 期号:3142
  • 页码:17-22
  • 出版社:Noshirvani University of TEchnology
  • 摘要:Aiming to evaluate the phosphorus adsorption in Oxisols with phosphorus remaining classified using the Langmuir isotherm, a study was developed in the laboratory at Federal University of Campina Grande, PB, with samples of the surface layer (0-20 cm) of three Oxisols of the State of Paraíba, differentiating among these the classification of the remaining P-values. The phosphorus levels for adjusting the isotherm were defined based on the remaining P-values. To assess the maximum P adsorption capacity data from P adsorbed and equilibrium concentrations of the solutions were adjusted Langmuir isotherm. This isotherm model could satisfactorily describe the adsorption of phosphorus in soils. The Oxisol sample with high P-rem was the highest value of maximum P adsorption capacity. The maximum P adsorption capacity was correlated with CEC and Ki for the samples classified as P-rem medium and high, respectively.
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