Removal of volatile compounds and surfactants from liquid

Removal of volatile compounds and surfactants from liquid

Removal of water and carbon dioxide from air

Removal of water and carbon dioxide from atmospheric air

Removing CO.sub.2 and, if necessary, H.sub.2 S from gases

Removing hydrogen sulphide from a gas mixture

Removing particles from a particle-containing fluid

Removing phenols from waste water

Removing pollutant

Removing pollutants from aqueous liquor used to scrub fuel gasif

Removing sulfur dioxide from exhaust air

Repressurization of pressure swing adsorption system

Repressurization technique for pressure swing adsorption

Resistive anode for corona discharge devices

Reuseable air filter system

Reversible membrane plant

Rigid discharge electrode

Rigid discharge electrode for electrical precipitators

Ripple insensitive electric precipitator

Roll-type electrical precipitator