Wastewater Treatment for Dairies

When processing milk large amounts of water are used – mainly for cleaning the plant’s systems and the delivery vehicles. Thus, the wastewater treatment of dairies needs to be able to handle large amounts of wastewater, typically with peak loads and changing pollutants depending on the individual company’s processes.

Wastewater of Dairy Plants

The wastewater of dairies is loaded with detergents, solids and organic substances such as fat. The DAS Environmental Expert processes for biological wastewater treatment are successfully working in dairies and cheese and

dairy producing companies worldwide. We offer companies of different sizes the full range of tailor-made processes for pre-treatment and biological treatment of wastewater.

Our Solutions for the Dairy Industry

Due to the high COD and BOD loads in wastewater of the milk processing industry heavy polluter charges have to be paid. Our experience with international dairy manufacturers of different sizes show that the quality of the wastewater treatment is a key factor regarding the profitability of the company. A smart plant engineering will support all future strategic developments.

Options for System Optimization:

  • Integrated equalization tanks even very unevenly distributed day-to-day effluent streams for continuous cleaning and delivery.
  • The specific determination of the wastewater composition allows a tailor-made treatment.
  • In addition to the separation of fat and solids, a targeted reduction of COD and BOD load before discharging the dairy wastewater into the sewer often makes economic sense.
  • Trust our energy-efficient solutions for biological wastewater treatment and reduce your water consumption and operating costs through effective multiple use of your process water. Our technologies react flexibly on changing wastewater loads. The biofilm process also combines excellent process stability with low sludge production.

Wastewater Treatment Reference

Fromageries BEL

The Vietnam location of Fromageries Bel produces processed cheese and cheese spreads. In order to meet Vietnamese environmental regulations, Bel wanted to install its own wastewater treatment system when building their manufacturing site in Vietnam. The company contacted DAS Environmental Expert due to its expertise in modular and flexible wastewater treatment. The extraordinary project demanded “greentelligence” for several reasons. The system is located in South Vietnam, which means it must be capable of operating in a tropical climate. Moreover, regulations in Vietnam are extremely strict, even compared to Germany’s industry norm (DIN). The QVCN law 24: 2009 sets high standards.

Humidity and sun exposure in tropical regions do not pose a problem to the system. Reactors and tanks consist of plastic and larger containers of concrete. In the case of the factory in South Vietnam pipes are made from stainless steel for extra durability. Pumps and ventilators are the only parts that experience wear-and-tear. Our biological technology is not only characterized by low energy consumption and low operating costs, but also guarantees low maintenance. Its modular structure allows for easy expansion and upgrades at any time. After the technical set-up and the resulting start-up and optimization the plant has been handed over in January 2011.

Only five years later, the mobility of the plant had to be proven: In 2016 the whole manufacturing site had to move to a different location. Due to the modular design of the wastewater treatment plant, that was no problem at all. The TFR bioreactors were emptied, moved and refilled with the same carrier material. The set-up was managed by DAS. Already after two weeks the plant reached the full degradation capacity.

Deutscher Milchkontor (DMK)

The DAS Environmental Expert GmbH is commissioned to comprehensively modernize and expand the DMK Group’s wastewater treatment system at its Strückhausen location in 2017. The company is investing in its Strückhausen branch in order to start producing skim and whole milk powder for baby food. Until production starts in 2018, extensive construction needs to be completed; corresponding manufacturing equipment has to be finalized and installed, and the existing wastewater treatment system must be adapted to the production changes.

The subsoil conditions in Strückhausen are extremely complicated. Due to high groundwater level, the ground has little load-bearing capacity, and the entire facility is built on piles. This also affects the optimization of the wastewater treatment system since the structural stability of construction cranes must be meticulously examined every time it is operated. Additionally, new system technology must integrate in a way that will take up minimal space.