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Waste Water Treatment

A Milestone in MBR Technology

| Editor: Dr. Jörg Kempf

Germany’s first municipal waste water treatment plant to use Bio-Cel submerged membrane bioreactor (MBR) modules from Microdyn-Nadir marks the continuing success of this patented technology. Since November 2009 the plant has used 28 BC 400 Bio-Cel modules with a total area of 11,200 m2 to treat half its throughput. Microdyn-Nadir launched the first backwashable, submerged MBR module using flat sheet membranes in 2005, and at IFAT in 2008 introduced its largest module, the 400 m2 BC 400. Since the beginning of 2010 the company has met the growing demand for these modules with a new automated production line which cuts, laminates and assembles the membrane sheets. In this way Microdyn-Nadir can equip MBR plants with more than 100,000 m2 of membrane area. Bio-Cel modules are characterized by crossflow aeration optimized through intensive R&D, and a special mechanical cleaning process (MCP) which results in very low energy consumption and almost no need for chemical cleaning. MCP uses an inert granular material to continuously clean the membrane surface.

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