Dynamic bed reactor
- Moscow, ID
A dynamic bed reactor is disclosed in which a compressible open cell foam matrix is periodically compressed and expanded to move a liquid or fluid through the matrix. In preferred embodiments, the matrix contains an active material such as an enzyme, biological cell, chelating agent, oligonucleotide, adsorbent or other material that acts upon the liquid or fluid passing through the matrix. The active material may be physically immobilized in the matrix, or attached by covalent or ionic bonds. Microbeads, substantially all of which have diameters less than 50 microns, can be used to immobilize the active material in the matrix and further improve reactor efficiency. A particularly preferred matrix is made of open cell polyurethane foam, which adsorbs pollutants such as polychlorophenol or o-nitrophenol. The reactors of the present invention allow unidirectional non-laminar flow through the matrix, and promote intimate exposure of liquid reactants to active agents such as microorganisms immobilized in the matrix.
- Research Organization:
- Univ. of Iowa, Iowa City, IA (United States)
- DOE Contract Number:
- FG07-89ER60847
- Assignee:
- Idaho Research Foundation, Inc. (Moscow, ID)
- Patent Number(s):
- US 5531897
- Application Number:
- 07/960,963
- OSTI ID:
- 870492
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
bed
reactor
disclosed
compressible
cell
foam
matrix
periodically
compressed
expanded
move
liquid
fluid
preferred
embodiments
contains
active
material
enzyme
biological
chelating
agent
oligonucleotide
adsorbent
passing
physically
immobilized
attached
covalent
ionic
bonds
microbeads
substantially
diameters
50
microns
immobilize
improve
efficiency
particularly
polyurethane
adsorbs
pollutants
polychlorophenol
o-nitrophenol
reactors
allow
unidirectional
non-laminar
flow
promote
intimate
exposure
reactants
agents
microorganisms
particularly preferred
fluid passing
cell foam
polyurethane foam
preferred embodiments
bed reactor
active material
preferred embodiment
chelating agent
laminar flow
liquid reactant
periodically compressed
active agents
biological cell
dynamic bed
liquid reactants
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