Dynamic bed reactor
Abstract
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.
- Inventors:
-
- Moscow, ID
- Issue Date:
- Research Org.:
- Univ. of Iowa, Iowa City, IA (United States)
- OSTI Identifier:
- 870492
- Patent Number(s):
- 5531897
- Application Number:
- 07/960,963
- Assignee:
- Idaho Research Foundation, Inc. (Moscow, ID)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C - CHEMISTRY C12 - BIOCHEMISTRY C12M - APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY
- DOE Contract Number:
- FG07-89ER60847
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- dynamic; 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; /210/
Citation Formats
Stormo, Keith E. Dynamic bed reactor. United States: N. p., 1996.
Web.
Stormo, Keith E. Dynamic bed reactor. United States.
Stormo, Keith E. Tue .
"Dynamic bed reactor". United States. https://www.osti.gov/servlets/purl/870492.
@article{osti_870492,
title = {Dynamic bed reactor},
author = {Stormo, Keith E},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 02 00:00:00 EDT 1996},
month = {Tue Jul 02 00:00:00 EDT 1996}
}