Abstract: 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.
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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.
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(1):48-58.
Hausmann, Angela; Sanciolo, Peter; Vasiljevic, Todor; Ponnampalam, Elankovan; Quispe-Chavez, Nohemi; Weeks, Mike; Duke, Mikel. 2011. "Direct Contact Membrane Distillation of Dairy Process Streams." Membranes 1, no. 1: 48-58.