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Improved Anaerobic Reactor for Municipal and Industrial Waste Processing
Category(s):
For Information, Contact:
Jay Bjerke
Commercialization Manager, Engineering
515-294-4740
licensing@iastate.edu
Web Published:
5/19/2015
ISURF #
2565
Development Stage:
Design phase complete:  Laboratory scale prototype is available for demonstrations.

Description:
This invention is a novel design for an anaerobic bioreactor that can be incorporated into industrial and municipal wastewater treatment.  The new design minimizes the loss of biological solids in the effluent and improves the efficiency of the system by minimizing the high chemical oxygen demand (COD) and the biochemical oxygen demand (BOD) in the process.  The reactor works by retaining the anaerobic catalyst granules in the reaction vessel that is constructed so that no stirring, recirculation, or upflow pumping is necessary. This patent is available for license outside the state of California.

Advantage:
• Provides better treatment in a smaller volume than currently used reactors, such as the Upflow Anaerobic Sludge Blanket reactor (UASB) and the Anaerobic Sequencing Batch Reactor (ASBR).
• Meets NPDES discharge requirements (i.e., 30 mg/L BOD5 and 30 mg/L SS) for surface discharge in many instances.
• Efficiency is higher and loss of biosolids into the effluent is lower for this new reactor, which does not require support material or mixing for biomass growth.
Application:
Wastewater treatment equipment manufacturers; producers of anaerobic digester systems/methane capture systems.
Patent Information:
*To see the full version of the patent(s), follow the link below, then click on "Images" button.
Country Serial No. Patent No. Issued Date
United States 10/187,523 6,709,591* 3/23/2004


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