When separator operation is no longer feasible due to high proportions of solids in the suspension to be processed, decanters are used. Decanters are horizontal, solids-oriented, solid-wall scroll centrifuges.
In solid-based applications, our centrifugal decanters ensure optimum separation efficiency, particularly in the case of suspensions with a very high proportion of solids. They are also used for the extraction of constituents from liquids and for concentrating, dewatering and classifying solids.
Application areas include the cleaning of wash water and the treatment of fruit and vegetables in the food industry, the recovery of animal and plant oils and fats, the production of herbal medicines, copper extraction, chemical extraction in the paper industry, the treatment of waste oil for power generation, waste water treatment in waste water treatment plants, and use on oil platforms for the extraction of crude oil.
GEA Westfalia Separator varipond® is a patented control and regulating system. Even if feed concentration varies dramatically, the system controls the liquid level in the decanter bowl so accurately that the concentration of the concentrated solids can be set to a constant value and maintained exactly.