Rotary disk humidifier

Rotary drum humidifier

Rotary drum humidifier

Rotary heat and/or mass transfer arrangements

Rotary surface aerator with adjustable liquid transporting units

Rotary surface aerators

Rotating gas diffuser

Rotating humidifier

Rotor adapted to rotate about a rotary shaft

Rotor film column for making contact between gas and liquid

Rotor film mass and heat exchanger

Rotor-carburetor having an idling mixture arrangement for intern

Rotor-type carburetor apparatus and associated methods

Scrubber-condenser for gas and vapour streams from industrial pr

Seal for rotary apparatus for gas-liquid contacting

Self-propelled jet aerator

Special aerator

Speed-increasing machine for water

Spin disk humidifier

Stirring and aerating device for activated sludges