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Membranes 2011, 1(1), 48-58; doi:10.3390/membranes1010048

Direct Contact Membrane Distillation of Dairy Process Streams

ISI-Institute for Sustainability and Innovation, Victoria University, Melbourne, Victoria, 3030, Australia
Dairy Innovation Australia Ltd., Werribee, Victoria, 3030, Australia
Author to whom correspondence should be addressed.
Received: 26 November 2010 / Accepted: 22 December 2010 / Published: 4 January 2011
(This article belongs to the Special Issue Selected Papers from the AMS6/IMSTEC10 Conference)
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Membrane distillation (MD) was applied for the concentration of a range of dairy streams, such as whole milk, skim milk and whey. MD of a pure lactose solution was also investigated. Direct contact MD (DCMD) mode experiments were carried out in continuous concentration mode, keeping the warm feed/retentate and cold permeate stream temperatures at 54 °C and 5 °C respectively. Performance in terms of flux and retention was assessed. The flux was found to decrease with an increase of dry-matter concentration in the feed. Retention of dissolved solids was found to be close to 100% and independent of the dry-matter concentration in the feed. Fourier Transform Infrared Spectroscopy (FTIR) of the fouled membranes confirms organics being present in the fouling layer.
Keywords: direct contact membrane distillation; milk dairy direct contact membrane distillation; milk dairy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Hausmann, A.; Sanciolo, P.; Vasiljevic, T.; Ponnampalam, E.; Quispe-Chavez, N.; Weeks, M.; Duke, M. Direct Contact Membrane Distillation of Dairy Process Streams. Membranes 2011, 1, 48-58.

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