德国迈纳德MN公司MBR膜生物反应器.pdfVIP

W W W . M I C R O D Y N - N A D I R . C O M W W W . M I C R O D Y N - N A D I R . C O M BIO-CEL ? Submerged Module for innovative Membrane Bio Reactors (MBR) W W W . M I C R O D Y N - N A D I R . C O M HISTORY – Partners mit Tradition W W W . M I C R O D Y N - N A D I R . C O M ? a combination of biological waste water treatment and membrane filtration ? a membrane filtration which separates biomass from water ? a membrane filtration which is based on ultra- or microfiltration What is a Membrane Bio Reactor (MBR)? A membrane bio reactor is... W W W . M I C R O D Y N - N A D I R . C O M Comparison Conventional Biological Treatment Plant - MBR Outlet Inlet Waste Activated Sludge Inlet Outlet Submerged Module Waste Activated Sludge W W W . M I C R O D Y N - N A D I R . C O M Advantages of Bio Reactors (MBR) ? Enhanced quality of treated water ? Constant quality of treated water ? Conformance of enhanced standards of hygiene (EC guidelines for bathing water) ? Safe rejection of biomass ? Higher efficiency due increasing concentration of biomass in the activated sludge tank ? Optimization and increasing of capacity for conventional plants ? Saving of the final sedimentation W W W . M I C R O D Y N - N A D I R . C O M Common Constructions of Submerged Modules for MBR Flat sheet membrane on plates Membrane Filtrate Up-stream Aerator Air Sludge Potted hollow fibers Filtrate Air Hollow fiber W W W . M I C R O D Y N - N A D I R . C O M Advantage and Disadvantage of Submerged Hollow Fiber Modules Advantage: - Flexibility - back flushable - high package density Disadvantage: - high tendency for sludge deposition - high tendency for braiding - bad cleanable W W W . M I C R O D Y N - N A D I R . C O M Advantage and Disadvantage of Submerged Modules based on Flat sheet/Plate Construction Advantage: - less tendency for braiding - good hydraulic flow behavior Disadvantage: - not back flushable - low package density - bad cleanable W W W . M I C R O D Y N - N A D I R