Abstract:
Gas lift pump apparatus comprising a column through which a liquid medium may be pumped by gas lift, the apparatus comprising a delivery device for delivering a flow of a gaseous fluid into the liquid medium, the device comprising means for generating ultrasonic energy therein by the flow of gaseous fluid therethrough, the device being operable to launch the ultrasonic energy into the liquid medium in the column.
Abstract:
A gas lift pump apparatus for treating ballast water includes a column through which a liquid medium, such as seawater, may be pumped by gas lift. The apparatus includes a delivery device for delivering a flow of a gas into the liquid medium, and a resonance chamber that generates ultrasonic energy therein by the flow of the gas therethrough. The apparatus is operable to launch the ultrasonic energy into the liquid medium in the column.