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[4] [5] Immobilization is useful for continuously operated processes, since the organisms will not be removed with the reactor effluent, but is limited in scale because the microbes are only present on the surfaces of the vessel. Large scale immobilized cell bioreactors are: moving media, also known as moving bed biofilm reactor (MBBR) packed bed
K1 MBBR carrier with biofilm. Moving bed biofilm reactor (MBBR) is a type of wastewater treatment process that was first invented by Professor Hallvard Ødegaard at Norwegian University of Science and Technology in the late 1980s. [1] The process takes place in an aeration tank with plastic carriers that a biofilm can grow on.
Robbins Device or modified Robbins Device (such as the MPMR-10PMMA or the Bio-inLine Biofilm Reactor) Drip Flow Biofilm Reactor® rotary devices (such as the CDC Biofilm Reactor®, the Rotating Disk Reactor, the Biofilm Annular Reactor, the Industrial Surfaces Biofilm Reactor, or the Constant Depth Film Fermenter)
While membrane bioreactors filter out flocs in activated sludge, membrane biofilm reactors feed gas —such as O 2, H 2, and CH 4 —to promote biofilm growth on the surface of hydrophobic membranes. The biofilm grows on a fixed surface rather than in a suspension. These reactors have the potential to efficiently remove micropollutants from ...
Biofilms, which are biological growths that become attached to the discs, assimilate the organic materials (measured as BOD5) in the wastewater. Aeration is provided by the rotating action, which exposes the media to the air after contacting them with the wastewater, facilitating the degradation of the pollutants being removed.
Bioremediation broadly refers to any process wherein a biological system (typically bacteria, microalgae, fungi in mycoremediation, and plants in phytoremediation), living or dead, is employed for removing environmental pollutants from air, water, soil, flue gasses, industrial effluents etc., in natural or artificial settings. [1]
For the enrichment of the anammox organisms a granular biomass or biofilm system seems to be especially suited in which the necessary sludge age of more than 20 days can be ensured. Possible reactors are sequencing batch reactors (SBR), moving bed reactors or gas-lift-loop reactors. The cost reduction compared to conventional nitrogen removal ...
As the biofilm layer thickens, it eventually sloughs off into the liquid flow and subsequently forms part of the secondary sludge. Typically, a trickling filter is followed by a clarifier or sedimentation tank for the separation and removal of the sloughed film. Filters utilizing higher-density media, such as sand, foam and peat moss do not ...
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