Abstract: The solid content of aqueous suspensions is separated from the liquid phase by electrophoresis and electro-osmosis. An electrode assembly comprising two closely spaced mesh electrodes is placed in the suspension and a potential is applied between the electrodes so that the solids in the suspension migrate to one electrode where they are electro-osmostically consolidated, the consolidated material being periodically removed. Preferably the assembly comprises collapsible spacer means which are periodically collapsed in order to squeeze out the consolidated material.

Abstract: An electrical generating plant comprising a generator which is driven, during on-load periods, by a gas turbine; the gas turbine operates continuously and is powered by a continuous supply of fuel gas from a suitable fuel source and compressed air from an air storage reservoir; the reservoir is recharged periodically from an air compressor driven by the gas turbine during off-load periods only. The air storage reservoir thus serves to store energy supplied by the system during off-load periods and to return that energy to the system during on-load periods, in which the air compressor is inoperative and places no load on the gas turbine.