Journal article

Crystallisation of minerals from concentrated saline dairy effluent

K Kezia, J Lee, B Zisu, M Weeks, G Chen, S Gras, S Kentish

WATER RESEARCH | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2016

Abstract

An understanding of crystallisation within saline effluents is important for the design of both brine crystallisers and brine disposal ponds. In this work, crystallisation of a saline effluent concentrate from the Australian dairy industry has been examined at 22 wt% and 30 wt% total solids and at temperatures between 10 and 70 °C. The precipitation occurs more rapidly at higher temperatures. This trend is dictated by precipitation of calcium phosphate salts, albeit the major constituents of the mixture are NaCl and lactose. The crystallisation induction time can be shortened by introducing cavitation induced by ultrasound. In particular, the use of two short acoustic pulses between 3.7 J/g ..

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Grants

Awarded by Dairy Innovation Research Hub, an Industrial Transformation Research Hub of the Australian Research Council


Awarded by Australian Research Council Discovery Early Career Researcher Award


Funding Acknowledgements

The supply of salty whey from an Australian dairy company is gratefully acknowledged. Funding from the Dairy Innovation Research Hub, an Industrial Transformation Research Hub (IH120100005) of the Australian Research Council is also acknowledged. Judy Lee acknowledges the support from an Australian Research Council Discovery Early Career Researcher Award (DE120101567).