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Hollow Fibre Membrane Module can slash CO2 emissions in food and beverage and biotechnology processes

Source:Toray Industries     Date:2021-12-01
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Toray Industries, Inc. has developed and begun supplying samples to customers of its robust hollow fibre ultrafiltration membrane module for food and beverage manufacturing and biotechnology purification and concentration processes. This module can save energy and contribute to carbon neutrality by attaining CO2 emissions that are more than 80% lower than those from the food production sector’s conventional thermal concentration processes. The company will accelerate development, with a view to full-fledged mass production, and will cultivate an array of applications.


Toray Industries, Inc. has developed and begun supplying samples to customers of its robust hollow fibre ultrafiltration membrane module for food and beverage manufacturing and biotechnology purification and concentration processes. This module can save energy and contribute to carbon neutrality by attaining CO2 emissions that are more than 80% lower than those from the food production sector’s conventional thermal concentration processes. The company will accelerate development, with a view to full-fledged mass production, and will cultivate an array of applications.

 

Hollow fibre membranes have become one of the mainstream in liquid filtration due to  their excellent separation, high membrane integration, reduced footprint, and superb area  utilisation efficiency. Toray’s exiting hollow fibre membranes are used widely in water  treatment. This is because its polyvinylidene fluoride ultrafiltration hollow fibre membrane  technology delivers exceptional durability and separability.  

 

Toray leveraged the high-strength hollow fibre membrane technology cultivated in water  treatment to develop the new module, which employs an outside-in type crossflow filtration design. Crossflow filtration is a common technique, through which feed passes parallel to membrane surface and prevents turbidity from accumulating.

 

Pressure losses from this design are just one-third those of inside-out type that food companies normally  use. It is thus possible to filter and concentrate highly turbid or viscous liquids, which is  challenging with regular membranes.  

 

Toray’s new module also features large membrane area technology which reduces the number of modules needed, halving space requirements and potentially lowering cleaning and equipment costs by more than 20%.  

 

The module performs well in steam (125°C) and hot water (90°C) environments to enable thermal sterilization and high temperature filtration. Filtration testing of a high turbidity microbial culture solution with the new module demonstrated stable, long-term filtration, with steam sterilization preventing bacterial contamination for more than 20 days.

 

Toray will build collaborative ties with engineering companies in Japan and abroad to develop an array of uses. They include high-viscosity, and high-turbidity raw water  applications that have to date employed solid-liquid separation technologies such as diatomaceous earth filtration or centrifugation. They also encompass food manufacturing

and bio production processes in which production lines require thermal sterilisation.


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