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SOFIE® is used in many types of studies (check also the Download section):

  • The effect of inundation and flooding

Release of contaminants and nutrients from sediments: exposure and effects

Aquatic sediments may absorb or release contaminants from/to surface waters and ground water. The rate and amount of which this occurs is generally difficult to determine. Redox processes (oxidation and reduction) determine the fate of many compounds to a large extent.

SOFIE® has found uses in many types of studies:

  • Inundation / flooding experiments;
  • Exposure tests with terrestrial and aquatic organisms;
  • Bioturbation and The effect of bioturbation on oxidation and bioavailability, contaminant displacement;
  • Fluxes of nutrients to/from sediment and surface water;
  • Simulation of long-term sediment storage in sand pits and lakes;
  • (Geo)chemical oxidation and ripening of drained sediments.

Aquatic sediments may absorb or release contaminants from/to surface waters and ground water. The rate and amount of which this occurs is generally difficult to determine. Redox processes (oxidation and reduction) dictate the fate of many compounds to a large extent.

These cells provide the means to measure redox-discrete processes.  

 

 

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Bioaccumulation studies with Tubifex (left) and Chironimus (right) show that uptake is primarily via the free dissolved phase

 

 

 

Redox gradients occur over short distances.

This affect the bioavailability of compounds.