Biofilm Reactors

Several devices have been, or are currently being developed or studied in-house, such as:

  • Parallel flow cells: this device allows the follow-up of bacterial adhesion and subsequent biofilm formation, both in real-time and in situ. The reactor, of transparent glass, is placed under a bright-field microscope coupled with an image-analysis system that is able to acquire both videos and images at selected time points.
  • Flow cell devices: these systems allow the formation of biofilms at controlled velocities and shear stresses, in coupons of different materials. The coupons may be removed without disturbing the biofilm coupons that remain in the device.
  • Well microtiter plates, either with or without slides of different material inserted into the wells for a rapid, high-throughput assessment of the attachment and biofilm formation. Modifications of this system are under development to allow high-throughput visualization of biofilm structure.
  • Rotating biological contactor (RBC): Consists of a series of closely spaced discs that are mounted on a common horizontal shaft and are partially or completely submerged in wastewater. Superior reactor for nitrification, denitrification, carbon oxidation and phosphorus removal studies and used for both municipal and industrial wastewater treatment.