Milk & dairy process

Technology and craftsmanship go hand in hand
When we produce our milk and dairy products. Our craftsmanship makes it possible for us to continually achieve high standards in flavour and quality – and there are many good examples of this e.g.:

For more than 130 years the Danish butter, Lurpak®, have existed in Great Britain. Arla Buko® cream cheese was first made in a basement in Copenhagenin the beginning of the 1930s, and the Swedish cheese Arla Kvibille® Cheddar has been produced since 1928 in accordance with a unique recipe and traditional craftsmanship.


Waste water turned into biogas

A new, innovative method of purifying the waste water that comes from processing milk is being used at Hobro Mejeri in Denmark. This is achieved with the help of a BioBooster. One of the by-products of the purification process is environmentally-friendly biogas.

Nutrients must be removed

Water is used when the milk we drink is processed. Among other things, water it is used to transport milk from the tank to the filling machine. This process results in  milk residue  in the water  which cannot  be discharged in the drainage system directly.

Milk and the waste water containing milk residue, is rich in nutrients and, as oxygen is required to break down nutrients, it could lead to deoxygenation in the environment if it were discharged untreated.

Waste water must therefore be purified before it is discharged. As the nutrients are dissolved in water they cannot be removed by simply filtering the waste water. The BioBooster, a biological water purifying plant, solves this problem.

"The BioBooster contains a culture of bacteria that eats the nutrients when the water is  directed through it. The bacteria can then be easily filtered from the water and, as the nutrients are contained in the ‘stomachs’  of the bacteria, the result is sludge and water that is no dirtier than waste water from an ordinary household. This waste water can therefore be discharged straight into the municipal water purifying plant," explains Torben Slots, QEHS Manager at Hobro Mejeri.