Submerged MBR-Module based on Flat Sheet Membranes (Membrane Bioreactors)
Tighter discharge regulations, urbanization and the increase in water recycling have made Membrane Bioreactors (MBR) the leading innovation in wastewater treatment through conventional activated sludge.
Traditionally, activated sludge treatment relies upon solids settling in a secondary clarifier to separate the biomass from the treated wastewater. This process has the disadvantages of running at a lower MLSS (Mixed Liquor Suspended Solids), thus requiring more space and producing lower and varying quality effluent.
Operation with high solids content (MLSS) and constant flux rates
With Membrane Bioreactor (MBR) technology, the clarifier is replaced by a physical barrier – the BIO-CEL® membrane module. This physical barrier enables the Membrane Bioreactor (MBR) to operate at higher MLSS levels, thereby requiring a smaller overall footprint. The BIO-CEL® membrane modules operate within the ultrafiltration spectrum, producing high capacities of quality effluent at consistent flows.
Efficiency, reliability and cost effectiveness as well as longterm viability are just some of the characteristics of the BIO-CEL® module. The effluent is suitable for:
- recycling applications
- irrigation purposes
- use as feeds for process water
BIO-CEL® offers the best of the two predominant module configurations on the market
BIO-CEL® combines the benefits of traditional hollow fiber and plate and frame configurations without any of their inherent disadvantages. The self-supporting membrane sheet is just 2 mm thick, resulting in an extremely high packing density and very low specific energy consumption.
Moreover, the laminate offers a self-healing mechanism. In case of damage caused to the membrane the spacer material in between the BIO-CEL® membrane laminate sheets allows for a sealing of the damage through the help of the biomass in the system. Even after the occurence of a severe detraction of the membrane laminate, solids and bacteria can still be rejected by the membrane bioreactor module.
The smart design of the BIO-CEL® membrane bioreactor (MBR) module
The BIO-CEL® configuration is based on flat sheet technology, with crossflow inhibiting clogging and reducing downtime.
The modules´ open top and bottom channels reliably prevent the deposition of sludge and fiber accumulation during the continuous crossflow operating process. The self-supporting structure of the membrane module enables frame-free installation, thus eliminating blockages around the external boundaries of each component. The membrane module is configured to allow for consistent permeate flow and a highly effective backflush over the entire membrane surface. In summary, the BIO-CEL® offers high packing density with optimal separation.
For large-scale applications with a total inflow to the MBR plant of > 2,000 m3/d of wastewater to be treated the BIO-CEL® XL with a total membrane area of 1,920 m2 has been developed.
For further questions regarding sizing and selection please do not hesitate to contact an official MICRODYN-NADIR representative. Please contact phone + 49 611 962 6001 or e-mail to info(at)microdyn-nadir.com