Dairies

As in the entire food industry, the aim is usually to have an own raw water supply from a well in order to have a supply of water independent of external influences. This includes water treatment plants and the associated pure water storage tanks. This avoids the costs of purchasing water from the municipal water supply and also reduces the burden on the latter.

Different types of water in the dairy

Different types of water are required as operating fluids at several points in the production process. As washing water for CIP processes, boiler feed water, cooling water and it can also be used in product manufacture. The enormous water consumption - 2 to 12 litres per kilogramme depending on the milk product - makes saving water consumption all the more desirable.

Recycling of waste and waste water from dairies

The waste water is characterised by a high organic load, which results from the high concentrations of fats and proteins in the milk. A combination of different wastewater treatment processes by our subsidiary CUSS manages to reduce the heavily contaminated but easily biodegradable substances in the wastewater to such an extent that the wastewater can be discharged directly into the receiving water without causing any problems.

Biogas can also be produced from waste and wastewater, which can reduce electricity and heating costs in the plant. This can mean potential savings and optimises the energy efficiency of the plant.

Water recovery for secondary water in the dairy

By recovering condensate using reverse osmosis, condensate can be reused in secondary processes:

• as a heat source for preheating feed or product water
• washing water for CIP processes
• vehicle cleaning
• irrigation
• floor cleaning
• WC flushing