Abstract: A method and system for sequestration of carbon dioxide from atmospheric air is disclosed. The method and system comprise the enabling of atmospheric air (16) to pass into an upper end of an elongate hollow tower (10). An aqueous solution (14) is charged (e.g. via a distributor) so as to mix with the atmospheric air within and adjacent to the tower upper end in a manner such that the air is cooled by evaporative cooling. As a result, the mixture passes downwards as a stream (22) through the hollow tower. The aqueous solution comprises a reagent added thereto that reacts with the carbon dioxide to form a compound in the solution to thereby sequester the carbon dioxide from the atmospheric air. The method and system also comprise generating electricity (32, 33, 35) (e.g. in an apparatus such as a gas turbine) from the downwards stream that is passing through the hollow tower.

Abstract: A method of, and a system for, processing or treating raw sugar juice wherein raw sugar juice produced in a crushing mill is delivered to a first section of a partitioned surge chamber from which section it is withdrawn and subjected to a degritting process in one or more cyclone separators, the juice which is relatively free of heavy solids being subsequently delivered to a second section of the partitioned surge chamber from which section it is withdrawn for clarification in a clarifier and from which clarifier mud is withdrawn for subsequent treatment in one or more centrifugal separators, the removal of heavy solids, such as dirt and grit, during the degritting process being such as to reduce wear and erosion of the components in the centrifugal separators for processing the clarifier mud.

Abstract: A centrifugal separator having a bowl and means to rotate the bowl about a longitudinal axis, the bowl including a cylindrical section and a coextensive conical section whereby, in use, a bath of feed material will form partially up the conical section as the bowl rotates with the remainder of the conical section forming a beach area up which separated solids are conveyed by a screw conveyor adapted to collect separated solids from adjacent the inside wall of the bowl and convey them out of the bath and up the beach to an outlet from the bowl, with weir means in the form of an overflow passage to allow substantially solid free liquid to be removed from the bowl, a first conduit extending into the bowl through one end thereof and coincident with the rotation axis thereof, and one, or more second conduits within and coaxial with respect to the first conduit and each other to define an inner passage and at least one outer annular passage through which feed material, and at least one separate treatment material m