Rasvasäiliöt

Rasvasäiliöt, often translated as grease traps or fat interceptors, are plumbing devices installed in the drainage system of commercial kitchens and food processing facilities. Their primary purpose is to prevent fats, oils, and grease (FOG) from entering the municipal sewer system. FOG can solidify in pipes, causing blockages and creating costly maintenance issues for both businesses and public utilities.

A typical rasvasäiliö operates on the principle of gravity separation. Wastewater from sinks and dishwashers flows into the trap, which is a large tank. Inside the tank, the flow rate slows down, allowing the lighter FOG to float to the surface, while heavier food solids settle to the bottom. The cooler, relatively FOG-free water then continues to flow out of the trap and into the sewer.

Regular maintenance is crucial for the effective operation of rasvasäiliöt. This involves periodic pumping out of the accumulated FOG and solids by a professional waste removal service. Without regular cleaning, the trap can become overwhelmed, reducing its efficiency and potentially leading to overflows. Many local regulations require the installation and maintenance of these devices to protect public sewer infrastructure and the environment. The design and capacity of rasvasäiliöt vary depending on the size and type of the establishment they serve.