BioPorts - Moving Bed Biofilm Reactor (MBBR)
From Other Products
Meet ammonia, BOD, and/or nitrate limits: You need a solution that can consistently hit required Total Ammonia-Nitrogen, cBOD5 and Total Nitrogen/Nitrate removal levels. Increase the surface area available to attached-growth bacteria: By growing nitrifying and heterotrophic bacteria on a surface, BioPortz minimizes the washout associated with suspended-growth biomass. Keep footprint to a minimum: Real estate is at a premium, and a lack of aeration energy or oxygen isn't always the limiting factor.
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Products Details
Nexom is the exclusive source for the BioPortz™ moving bed biofilm reactor (MBBR). BioPortz combines concentrated attached-growth reaction kinetics with Nexom's unmatched biological treatment expertise to create an industry leading nitrification, denitrification, and BOD removal technology.
Why do you need a BioPortz system? BioPortz technology installed at your plant allows you to:
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Meet ammonia, BOD, total nitrogen and/or nitrate limits
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Compact design allows your plant to do more with the space you already have
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Coarse screens and Screen Scour™ makes BioPortz™ a low-maintenance, simple-to-operate solution
Advantages
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Small footprint
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Handles variable loading
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Media size optimized for huge surface area while allowing for more coarse screening
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Operational simplicity
Application
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Nitrification
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Pre- or post-denitrification
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BOD reduction
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Activated sludge plant upgrades
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New IFAS installations (Integrated Fixed-film Activated Sludge)
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Small-footprint lagoon pre-treatment or polishing
How it Work
BioPorts™ technology works very well as a stand-alone MBBR process or as part of a larger process, such as an integrated fixed-film activated sludge (IFAS) process. But in both cases, the fundamentals of how it works are similar.
Biomass is easiest to retain when it's fixed to a surface. Whether the intent is to remove BOD, nitrify ammonia, or even denitrify nitrates, growing biomass on a surface minimizes the washout that occurs in a suspended-growth environment. BioPortz provides that surface area—and plenty of it—in the form of dynamic media that is submerged and contained in a tank.
While the biofilm is fixed on the media, the media itself circulates in the tank. The integrated aeration in the tank not only ensures high dissolved-oxygen levels throughout, it also moves the media within the tank, enabling a more even distribution of loading and oxygenation to the biomass.
As a result, BioPorts™ MBBRs can accommodate rapid increases in loading or flows. Because there is ample surface area for biomass expansion and loading is effectively distributed across the media, BioPorts MBBRs are applicable not only to municipal nitrification, but can be used in other applications including roughing highly-variable BOD levels at industrial sites or for Combined Sewer Overflow (CSO) treatment.
Designed to be betterEven among MBBRs, BioPorts™ stands apart. Its patented media optimizes surface area for attached growth, ensuring that all 176 ft2/ft3 of media surface area are available to biomass. In addition, the carriers’ dimensions are engineered to carefully balance size and shape to enable both coarse media retention screening and effective media motion.
Media isn't the only exclusive feature to BioPorts. Only Nexom offers Screen Scour™, which disperses media collecting on effluent screens, a particularly indispensable function in anoxic denitrification basins.
How does the system need to be modified to remove nitrates?
To enable the cultivation of the bacteria for denitrification (the conversion of nitrates to nitrogen gas), anoxic (oxygen-starved) conditions are required. As such, the system eliminates any aeration and achieves dynamic motion of the media using mechanical mixing and Nexom's exclusive Screen Scour™ technology to prevent the flow through the system from collecting all the biofilm carriers around the effluent screens.
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