Eutectic Freeze Crystallization

An experimental study into the application of the EFC process on two different aqueous waste streams

Master thesis (2012)

Authors

Contributors

G.J. Witkamp (mentor)
Programme
PEQ (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2012 De Graaff, B.
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Published Date

07-03-2012

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Programme

PEQ

Abstract

Eutectic Freeze Crystallization (EFC) is very promising technique for the treatment of aqueous waste streams in which salts are dissolved. In this study extensive experimental work was done to characterize the EFC behavior of two different waste streams. One is a sodium sulfate rich stream and the second stream contains a mixture of various salts. Main focus of this study lies in the field of scaling occurring on the heat exchangers and how this can be reduced/avoided by adding non-crystallizing components to the system.