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Uranium in Secondary Phosphate Fertilizers and Base Substrates from Water Treatment Plants

  • Dorit Julich
  • Christine Waida
  • Stefan Gäth
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

As a limiting factor for plant growth the demand for phosphorous (P) fertilizers is huge while the global phosphate reserves are strongly limited. Thus, the recycling of P from secondary raw materials such as sewage sludges and ashes or other organic waste materials will be a more and more important resource. In fertilizers, both primary and secondary, not only the nutrients but also the content of pollutants is important for an application in agriculture. Mineral P fertilizers may contain remarkable concentrations of uranium (U), cadmium (Cd) and other trace elements depending on their origin and chemical treatment.

Keywords

Sewage Sludge Chemical Treatment Rock Phosphate Water Treatment Plant Recovery Method 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Dorit Julich
    • 1
  • Christine Waida
    • 1
  • Stefan Gäth
    • 1
  1. 1.Institute of Landscape Ecology and Resources ManagementJustus-Liebig-University GießenGießenGermany

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