Thanks to the infrastructure expansion in Asia suppliers of centrifuges, clarifiers and dissolved air flotation systems will enjoy a $1.1 billion world market.
This is the latest forecast in Sedimentation/Centrifugation World Markets, an online publication of the McIlvaine Company.
Asia will account for more than 50 percent of the market. There are two popular choices for sludge dewatering. One is the decanter type centrifuge. The other is the belt filter press. Centrifuges are sophisticated devices and, therefore, typically supplied by international companies. There are a number of local belt filter press suppliers in Europe.
Dissolved Air Flotation (DAF) is efficient at removing particles. It can be used for primary and tertiary treatment. Sludge collectors are widely used in treatment plants around the world. There are mechanical designs which push the sludge up an incline. There are also suction types with a traveling suction pipe.
China is a special case. There is a very large need for wastewater treatment plants as the migration from farms to cities continues. At the same time, there are water shortages. The rainfall per capita in China is less than half that in the U.S. As a result, there is great interest in reclaiming municipal wastewater. This adds to the market and DAF, centrifuges and clarifiers are often used in reclamation systems.