Solarchem Enterprises Inc.

Solarchem Research, a Division of Brolor Investments Limited

Pauline M Brown

Stephen R Cater

R D Stevens

J Adele Buckley

Rd Samuel Stevens

Samuel R Stevens

A method of treating a liquid effluent or groundwater containing organic contaminants is provided. The liquid effluent or groundwater containing the organic contaminants is contacted with hydrogen peroxide and transition metal ions. The hydrogen peroxide and transition metal ions are present in effective amounts based on the concentration of the organic contaminants in the liquid effluent or groundwater. The liquid effluent or groundwater is then irradiated with UV light having a poly- chromatic output between about 200 to 400 nm to decompose the organic contaminants. The ratio of hydrogen peroxide to transition metal ions is selected so as to favor the absorption of UV light by the hydrogen peroxide in the irradiation step.

Treating contaminated effluents and groundwaters

Method for removing a malodorous or toxic gas from an industrial exhaust air stream in the presence of ozone and water by applying radiation to a plurality of reaction zones sequentially aligned in the air stream. The reaction is maintained at optimal efficiency by adjusting both the ozone concentration and the radiation intensity.

Method for removing malodorous or toxic gases from an air stream

Solid or liquid phase wastes containing organic contaminants which can be photodegraded are treated. The contaminants are extracted into a perfluorinated solvent which is inert to the photodegradation step. In the case of solid wastes, such as contaminated soils, sediments or sludges, the contaminant is preferably first extracted into a hydrophilic solvent, such as acetone or methanol, and/or water, and is then extracted into the perfluorinated solvent. Photo-oxidants such as ozone are preferably used in the photodegradation step.

Growing community of inventors

Toronto, Canada

Pauline M Brown