Tetra Pak Processing Systems

G. Bylund, Dairy Processing Handbook, Teknotext AB, Tetra Pak Processing Systems AB, Lund, 1995, pp. 23-27. 

Figure. 5.2. Principle of operation of a centrifugal milk separator. Milk enters at the bottom of the unit and separates into heavier shim (dark grey) and lighter cream (pale grey) fractions which are recovered at the top of the separator (Reproduced with permission from Dairy Processing Handbook, Tetra Pak Processing Systems AB, Lund, Sweden, 1995).

Larsson, E., Microfiltration of Milk with Backpulsing, Tetra Pak Processing System, Lund, Sweden, 2011. 

Alfa Laval/Tetra Pak, The Chemistry of Milk in Dairy Processing Handbook, Tetra Pak Processing Systems, Lund, Schweden, 1995, Chapter 2, pp. 13-36. 

Tetra Pak Processing Systems Division, Rubens Rausing gata,... 

All diffusion processes involving the transfer of a diffusantfrom or to a polymeric material asymptotically reaches a steady condition at long times. In any closed system (like a Tetra Pak carton) that has reached this condition, there is no effective mass transfer between the polymer and the surrounding phases the adjuvant concentrations are at equilibrium, and the transferred material is at the maximum possible amount In reference to Fig. 11.25 b, consider a sorption or migration process that has reached equilibrium. is the volume of contacting phase, and Vp is the volume of plastic in the container, and c y and c are the equilibrium concentrations of the adjuvant in the contacting phase and polymer, respectively. For the case of sorption of a substance from the food phase by the polymer, the mass balance at equilibrium is... 

---