These separate sand from the water, by a process of decantation.

They prevent sand and other solids entering the machinery, reducing the need for repairs and maintenance, and extending the useful life of the machinery in industrial processes (pumps etc.).

It is used for WWTP (Wastewater Treatment Plants) and ETAP (Drinking Water Treatment Stations), although it can also be used more generally in industrial contexts and for any type of water treatment, through the separation of sand (the paper industry, chemical industries, recycling plants, the food industry, industrial slaughterhouses, etc.)