Construction Update: The modernization and expansion of the existing wastewater treatment plant at the Polmlek Group dairy plant are nearing completion!

The main construction and installation works have been completed, and we are currently undertaking activities related to the technological start-up of individual parts of the wastewater treatment plant. The heat node has been activated to provide the proper temperature in the anaerobic reactor. Substrate delivery to the anaerobic process has also begun.

Previously, the industrial wastewater from the plant was treated in the existing, conventional treatment plant using activated sludge technology combined with preliminary mechanical treatment and flotation process. The demand for electricity to remove organic pollutants from wastewater in aerobic processes is very high, while they are excellent substrate for biogas production, which can be used to generate energy.

The goal of the project we are implementing is to implement technological solutions that will:

• Produce "green energy" from biogas;
• Reduce operating costs and transform the wastewater treatment plant into a profit-generating facility;
• Reduce the amount of wastewater sludge to be disposed of outside the plant;
• Ensure high-quality treated wastewater discharged into surface waters.

Achieving these goals is possible through the use of modern technologies, linked in a complex system, such as pressure flotation with hydrolysis of post-flotation sludge; anaerobic wastewater treatment with biogas production; aerobic wastewater treatment with activated sludge and final flotation - ensuring low phosphorus and suspended solids concentrations in the wastewater discharged to the receptor.

The produced biogas will be purified in a dedicated installation to remove unwanted components, enabling its energy consumption in a high-efficiency combined heat and power (CHP) plant.