A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
23/338
A61M 1/36 (2006.01) A61K 35/16 (2006.01) B01D 15/08 (2006.01) G01N 33/53 (2006.01) G01N 30/02 (2006.01) G01N 30/52 (2006.01)
Patent
CA 1248325
ABSTRACT OF THE DISCLOSURE There is disclosed a system and apparatus for purifying a fluid stream which employ a fixed ligand to absorb a ligate carried in the fluid stream. The system and apparatus each includes a bed of ligands affixed to a semipermeable membrane. The ligand has a binding constant which, in the environment normally present in the fluid stream, will predictably bind the ligate and thus remove it from the fluid stream. An agent which regenerates the ligand is conveyed to the ligand bed by diffusion across the semi- permeable membrane. The diffused agent breaks the ligate- ligand bond. The ligand is regenerated for subsequent use, and the ligate is freed for disposal.
480357
Gowling Lafleur Henderson Llp
The Trustees Of Columbia University In The City Of New York
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