Wastewater treatment plants for dairy wastewater from milk processing plants

The industrial wastewater from milk processing plants comes from the cleaning of production facilities. In most cases, this is white water from milk production or white water with whey from cheese production.

Some production areas also have high levels of lipophilic substances (fats) and P loads. In general, the influent concentrations are higher than for domestic wastewater (BOD5 values of up to 3,000 mg/l).
A good COD/BOD ratio favors biodegradability.

Process concept

To ensure that biodegradation is not hindered by too many lipophilic substances, a KLARO grease separator should be installed upstream of the system. This also serves to neutralize the pH.

Further pre-treatment fulfills the following functions:

• Equalization of fluctuating feed values
• Storage of the inlet water
• Sludge storage