Sedimentointisäiliö

Sedimentointisäiliö, often translated as sedimentation tank or settling tank, is a crucial component in various industrial and municipal processes, particularly in wastewater treatment. Its primary function is to remove suspended solids from a liquid by gravity. The principle behind its operation is simple: as the liquid flows slowly through the tank, heavier solid particles settle to the bottom due to gravity.

These settled solids, known as sludge, are then periodically removed from the tank for further processing or disposal. The liquid, now clearer, continues to the next stage of treatment. Sedimentointisäiliöt come in various designs, including rectangular, circular, and lamella settlers, each with specific advantages for different applications. Rectangular tanks are common in large-scale municipal wastewater treatment plants, while circular tanks are often used for primary clarification. Lamella settlers, with their inclined plates, offer a more compact and efficient solution for smaller spaces or higher flow rates.

The effectiveness of a sedimentointisäiliö depends on factors such as flow rate, tank dimensions, and the settling characteristics of the suspended solids. Proper design and maintenance are essential to ensure optimal performance and efficient removal of impurities. In wastewater treatment, sedimentation is typically the first major step in separating solids from liquids, significantly reducing the load on subsequent treatment processes.