BioElement Biofilters

BioElement™ Biofilters for Recirculating Aquatic Systems

BioElement™ moving bed biofilters from Integrated Aqua Systems, Inc. represent the latest advances in biofiltration technology for aquaculture.  At the core of the BioElement™ Biofilter is IAS BioElement™ biological media.  IAS BioElements™ provide some of the highest usable surface area per unit volume (750m2/m3, 228ft2/ft3) in a high quality, form-stable, injection molded plastic element.   IAS BioElements™ are not prone to binding together, wedging or disintegrating over time like comparable medias.  IAS BioElements™ are engineered in a medium density product designed specifically for use in moving bed biofilters.  Medium density media allows better mixing in the vessel with less aeration required ultimately leading to a more energy efficient filter.

Please consult the selection charts below for general sizing criteria and Contact IAS today for application assistance and pricing. Please contact our technical support team for help regarding:

• Calculation of ammonia loading rates from feed application rates
• Correction factors for in situ nitrification and system water exchange
• System design based on criteria for toxic un-ionized ammonia
• Parallel staging of bioreactors based on water flow rates
• Serial staging of bioreactors for optimized oxidation of organic carbon and ammonia
• Biofilter media conditioning procedures prior to stocking fish
• Management of water alkalinity and pH for optimized ammonia oxidation

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General Sizing Guide for BioElement™ Biofilters

This guide provides bioreactor sizing for three general types of aquatic systems:

For each type of aquatic system, TAN removal rates in the table below are shown for a water temperature of 15 C.
For water temperatures below and above 15 C, multiply TAN removal rate by the following factors.

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