Journal article

Eutectic freeze crystallization of saline dairy effluent

GQ Chen, SL Gras, SE Kentish

Desalination | Elsevier | Published : 2020


The disposal of saline effluent in the dairy industry is subject to increasingly strict regulatory requirements. In this work, eutectic freeze crystallization (EFC) was investigated as a mechanism for the simultaneous separation of salts and ice in a typical saline effluent, namely salty whey. Experiments were conducted using salty whey samples collected from a dairy processing facility. The eutectic point of the salty whey was determined using differential scanning calorimetry and was found to be lower than that of NaCl solutions (−24 °C for salty whey vs. −21 °C for aqueous NaCl solutions). Crystallization experiments were then used to construct the phase diagram of this dairy stream under..

View full abstract


Awarded by Australian Research Council

Funding Acknowledgements

The Australian Research Council's Industrial Transformation Research Program (ITRP) funding scheme (Project Number IH120100005), The ARC Dairy Innovation Hub is a collaboration between The University of Melbourne, The University of Queensland and Dairy Innovation Australia Ltd.