초록 ▼

A hollow fiber membrane bioreactor process for continuous selective removal of organic toxicants or other oleophilic solutes present in an aqueous process stream wherein low concentration levels of said toxicant are removed from the aqueous process stream by being extracted and concentrated by the p

A hollow fiber membrane bioreactor process for continuous selective removal of organic toxicants or other oleophilic solutes present in an aqueous process stream wherein low concentration levels of said toxicant are removed from the aqueous process stream by being extracted and concentrated by the permeably selective hollow fiber membrane and then provided to a microorganism for metabolization into a water soluble metabolite. The water soluble metabolite is prevented from reentering the aqueous process stream and removed from the bioreactor in the aqueous nutrient effluent stream.

대표청구항 ▼

A process for continuously removing selected organic toxicants or other oleophilic solutes from an aqueous process stream by employing microorganisms in a hollow fiber membrane module to metabolize said solutes into water soluble metabolites, said module comprising a lumen side and a housing side wi

A process for continuously removing selected organic toxicants or other oleophilic solutes from an aqueous process stream by employing microorganisms in a hollow fiber membrane module to metabolize said solutes into water soluble metabolites, said module comprising a lumen side and a housing side with said microorganisms being located in said housing side thereof, said process comprising: continuously providing a fluid process stream containing a low water solubility toxicant or other oleophilic solute therein to the lumen side of a permeably selective hollow fiber membrane module; continuously providing an aqueous nutrient stream comprising a water soluble nutrient to the housing side of said hollow fiber membrane module; selectively transporting said solute through the hollow fiber membrane of said module to said microorganisms to be metabolized thereby while preventing transportation of said water soluble nutrient and metabolite in said housing side through said hollow fiber membrane into said lumen side, said hollow fiber membrane further serving to concentrate said solute therein during said transportation therethrough; continuously removing said solute depleted fluid process stream from said lumen side of said hollow fiber membrane module; and continuously removing said aqueous nutrient stream and metabolites contained therein from the housing side of said hollow fiber membrane module.