Integrated membrane processes

FIG. 20 Flow sheet of a novel integrated membrane process for citric acid production from glucose syrups by Yarrowia lipolytica, as proposed by Moresi (1995). 

Pinacci, P., Radaelli, M., Bottino, A., and Capannelli, G. 2004. Molasses purification by integrated membrane processes. Filtration (Coalville, United Kingdom), 4(2), 119-122. 

Integrated membrane processes are today proposed also in the dairy, food, and fruit-juices industries. 

In this logic, a new integrated membrane process for the production of concentrated blood orange juice has been proposed as an alternative to thermal evaporation (Figure 12.7) [26]. 

Figure 12.7 Scheme of an integrated membrane process for fruit-juice concentration [26],... 

The integration of membrane contactors with other membrane operations, including membrane reactors, may lead to redesign of production lines based on intensified integrated membrane processes. 

Kumar, A., Haddad, R., Alguacil, F.J. and Sastre, A.M. (2005) Comparative performance of non-dispersive solvent extraction using a single module and the integrated membrane process with two hollow-fiber contactors. Journal of Membrane Science, 248, 1. 

Integrated Membrane Processes for Water Desalination 266 Integrated Membrane Process for Wastewater Treatment 271 Integrated Membrane System for Fruit-Juices Industry 274 Integrated Membrane Processes in Chemical Production 276 Conclusions 281 References 281... 

The use of an integrated membrane process for the clarification and the concentration of citms and carrot juices was proposed as an alternative to the traditional techniques of the agro-food industry [151]. The ultrafiltration process was studied on a pilot plant unit to clarify the raw juice. A clear phase was produced in this step and it was used for concentration by successive membrane treatments. The RO process, performed on a laboratory plant unit, was used to preconcentrate the permeate from UF up to 15-20 g TSS/lOO g. A final OMD step yielded a concentration of the retentate from the RO up to 60-63 g TSS/lOO g. 

These operations were tested in both laboratory and pilot plant units. The product was far superior to apple juice produced by conventional methods. Details on investment cost of conventional and integrated membrane processes are... 

Comparative Investment Cost of Conventional and Integrated Membrane Processes for Processing of Fruit Juice and Beverages... 

Cassano, A., et al. Clarification and concentration of citms and carrot juices by integrated membrane processes, J. Food Eng., 57, 153, 2003. 

Cassano, A., Jiao, B., and Drioli, E. Integrated membrane process for production of concentrated kiwifruit juice. Proceedings of the 1st workshop Italy-China on state of research and applications of membrane operations for a sustainable growth, Cetraro, Italy, 2002. 

Alvarez, S., et al. A new integrated membrane process for producing clarified apple juice and apple juice aroma concentrate, J. Food Eng., 46, 109, 2000. 

Highly integrated membrane processes, combining various membrane operations suitable for separation and conversion units, are an attractive opportunity because of the synergic effects that can be attained. Practically, there are a lot of opportunities for membrane separation processes in all areas of industry [8]. The most interesting developments for industrial membrane technologies are related to the possibility of integrating various membrane operations in the same industrial cycle, with overall important benefits in terms of product quality and plant compactness. 

Exciting opportunities also exist in design of production cycles by combining various LM operations suitable for separation and other separation/ conversion units, thus reahzing highly integrated membrane processes. Examples include BOHLM and BAHLM processes where membrane... 

Hernandez-Pernandez, P. J., de los Rios, A. P., Tomas-Alonso, P., Gomez, D., Villora, G. (2008). On the development of an integrated membrane process with ionic liquids for the kinetic resolution of rac-2-pentanol. J. Membr. Sci., 314, 238-246. 

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