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Milk Filtration Whey Filtration

Services Dairy Science Information

There are many options for dairy filtration and the selection of the correct process for your application is important

Milk filtration factors to consider

What is the application e.g. milk, skimmed milk, whey etc. what do you want to filter out / in
Size of the milk filter system capacity per hour
Is the milk filtration system to replace an existing system or complement it (e.g. reduced evaporation / increased capacity etc
What are the operating costs of the filtration process
What are the capital costs of the complete milk filtration system
Cost benefit evaluation of the various milk fiortration and other options
Milk Filtration system selection
Life and cost of milk filters
Waste stream disposal from the permeate section of the milk filtration plant

Microfiltration

Ceramic micro filters

Microfiltration is a low pressure from 0.1 to 0.5 bar) cross-flow membrane process for separating suspended particles in the range of 0.05 to 10 microns. This process is used for the removal of bacteria and can reliably remove over 99% of sporeforming bacteria responsible for reducing shelf life of heat treated dairy products.
The main cause of a reduced shelf life in UHT milk is the number of sporeforming bacteria that are present in the milk prior to treatment so this microfiltration step is a good step for volume manufacturers to safeguard the shelflife of their products and to give a more consistent product. Milk Bactofugation or double bactofugation is also another option for reducing spores.

Reverse Osmosis

Microfiltration applications & benefits

Extended shelf life (ESL) cheese
Consistent good microbial quality
Extended shelf life (ESL) pasteurised milk
Pre-treatment of UHT milk
Spore removal for cheese milk
Protein fractionation
Whey protein recovery
Brine purifaction
Spore removal for whey
Spore reduction for milk for powders (esp Infant Fromula products)

Note: All filtration is carried out on the skimmed milk portion of milk, the milk has to be first seperated into skimmed milk and cream streams and the skimmed milk filteresd or bactofugated as the cream / milk fat will clog the membranes. The cream is then usually high temperature heat treated before being added back as required.

Ultrafiltration

Sprial wound and ceramic membranes
Ultrafiltration is a selective fractionation step utilising pressures up to 10 bars to retain particles of specific cut-offs from 1,000 to 1,000,000 molecular weight.
A spiral wound system is generally a lower capital investment than ceramic membranes but they are more suxceptible to damage and are inactivated by small quantities of chlorine.
Ceramic membranes are generally more sturdy and require less care and maintenance than spiral wound.

Ultra filtration products and applications

Ceramic and Spiral wound membranes for milk

Liquid skimmed milk filtration for protein standardization

UF Feta cheese filtration to preconcentrate the milk solids

Cast Feta cheese

Cheese milk protein standardisation

Quarg

Cream cheese

Milk protein standardisation

Whey protein recovery

Lactose manufacturing

Fractination

Whey Electrodialysis

Whey Protein Isolate

Whey Electrodialysis process flow

UF Processing

UF Filters

UF technology

Ultra filtered milk

Extended shelf life

Long life

Micro Filters

Micro Filtered

Bacteria removal

Nano filter

Nano filtration

NF

Nano filters for milk

Milk fractionation

Reverse osmosis

Osmotic pressure

Milk fractions

Milk fractionation

Whey Protein Isolate Production

Reverse Osmosis (RO - Spiral Wound Membranes)

Waste reduction / Process water re-generation

RO permeate / UF permeate

Evaporator condensate

Permeate concentration

Whey concentration

Milk concentration

Nano Filtration

De-salting of Whey

Electrodialysis (WHEY electrodialysis - for producing demineralised Whey and whey isolate type products

Reduced utilities and chemicals consumption compared to Ion exchange

The permeate stream is low volume compared to Ion exchange

Whey dialysis plants can be batch or continuous

Scaleable dialysis plants for small or large volumes

Added value infant formula whey proteins production

Whey Electrodialysis process description
The electrodialysis process uses anion and cation exchange, for reducing the mieral content of whey and manufacturing added value demineralised whey for infant formula milk powders and other premium products. For more information then please contact us using the link below.
For more information or to discuss your requirements please contact us.

Contact

Contact John Watson

John Watson
Office: +44 1224 861 507
Mobile: +44 7931 776 499
jw@dairyconsultant.co.uk

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We are a longstanding member of the Society of Dairy Technology and have Fellowship of the Institute of Food Science and Technology.

Contact Details

John Watson
Office: +44 1224 861 507
Mobile: +44 7931 776 499
jw@dairyconsultant.co.uk

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We are a longstanding member of the Society of Dairy Technology and have Fellowship of the Institute of Food Science and Technology.

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