Process for removing contaminants

Details Process for removing contaminants Process for removing contaminants

1996-10-25

1998-11-03

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210747, 210909, C02F 128

Patent

active

058303634

ABSTRACT:
A method for removing contaminants from fluids comprises contacting the fluid with an expanded material selected from popped corn, puffed rice and puffed wheat. The preferred expanded material is popped corn. The method is applicable to a wide range of organic and inorganic contaminants. Examples of contaminants include aromatic compounds such as polychlorinated biphenyls (PCBs), polychlorinated dibenzo furans (PCDFs), polychlorinated dibenzo dioxins (PCDDs), carbamates, sulphonamides, dichlorodiphenyltrichloroethane (DDT), 2,4-dichlorophenoxyacetic acid (2,4-D), other compounds such as carbon disulphide, ethylene glycol, pesticides, oils, wood preservatives, pulp and paper bleaching compounds. Other examples include inorganic compounds or organo-metallic compounds, e.g. those containing aluminum, antimony, barium, cadmium, cobalt, chromium, copper, iron, lead, mercury, molybdenum, nickel, silver, tin, titanium, vanadium and zinc.

REFERENCES:
patent: 4061573 (1977-12-01), Biron
patent: 4891320 (1990-01-01), Aust et al.
patent: 4969774 (1990-11-01), Arseneault et al.

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