Journal article

Direct contact membrane distillation for the concentration of saline dairy effluent

Kezia Kezia, Judy Lee, Mike Weeks, Sandra Kentish

WATER RESEARCH | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2015

Abstract

The ability of direct contact membrane distillation to concentrate the waste effluent from salty whey, a by-product from the cheese making industry has been investigated. The effect of trace protein in the feed, cross-flow velocity and feed acidity were the factors examined. Flat Sheet PTFE membranes of nominal pore sizes 0.05, 0.22 and 0.45 μm were utilised. A decline in feed flux in the presence of trace protein in the feed was observed, but liquid penetration through the membrane could still be prevented by utilization of a membrane of smaller pore size, to achieve a final total solids concentration of ±30% w/w with water recovery from 37 to 83 %. The pressure-drop across the channel leng..

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University of Melbourne Researchers

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