Ceramic Membranes in Sludge Thickening Applications

The Aerobic Digestion group has recently been conducting pilot testing of silicon carbide ceramic membranes manufactured by the Danish company Cembrane A/S.  This promising technology shows a great ability to filter water even in the challenging high solids environment of sludge thickening.  The results of the pilot testing have led the aerobic digestion group to utilize Cembrane’s membranes as the basis of design for sludge thickening projects moving forward and have signed an exclusive distribution license for the municipal North American market.  The ceramic membranes have already been installed in a small application in the Pacific Northwest and are being provided for a project in Southern California.  These are the same membranes being used by the Ultrapure group in their wastewater treatment systems for chip manufacturing facilities.

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