초록 ▼

Halogenated hydrocarbons, such as 1,1,1-trichloro-2, 2-bis(chlorophenyl) ethane (DDT) and polychlorinated biphenyls (PCB), are removed from aqueous media including waste water from chemical manufacturing operations by contacting the aqueous media with an effective amount of a polyolefinic microporou

Halogenated hydrocarbons, such as 1,1,1-trichloro-2, 2-bis(chlorophenyl) ethane (DDT) and polychlorinated biphenyls (PCB), are removed from aqueous media including waste water from chemical manufacturing operations by contacting the aqueous media with an effective amount of a polyolefinic microporous adsorbent, preferably in the form of a filter or cartridge.

대표청구항 ▼

A process for removing non-polymeric halogenated hydrocarbons and molecular and elemental halogens selected from at least one member of the group consisting of chlorine, fluorine, bromine, and iodine, from an aqueous medium which comprises contacting said aqueous medium with a polyolefinic microporo

A process for removing non-polymeric halogenated hydrocarbons and molecular and elemental halogens selected from at least one member of the group consisting of chlorine, fluorine, bromine, and iodine, from an aqueous medium which comprises contacting said aqueous medium with a polyolefinic microporous adsorbent having a surface area of from about 10 to about 40 square meters per gram of adsorbent selected from at least one member of the group of films, fibers, yarn, sheets, fabrics and laminates, said polyolefinic adsorbent comprising an olefinic polymer selected from the group consisting of ethylene homopolymers, propylene homopolymers, poly-3-methylbutene-1, poly-4-methylpentene-1, copolymers thereof, and copolymers thereof with a minor amount of a straight chain n-alkene.