Abstract: An apparatus for settling sediment from a liquid collected in a drainage pit, including a plurality of spaced apart deflectors which are configured to be inclined in use, the deflectors comprising: an uppermost deflector having an aperture formed in an upper portion thereof so that liquid pooling in the pit can flow through the aperture, a second deflector arranged in use to be at least partially below the uppermost deflector, the second deflector opening into a sediment reservoir at a lower end thereof so that liquid flowing along the second deflector can settle in the sediment reservoir, and a third deflector extending upwardly from the sediment reservoir, the third deflector having an aperture formed in an upper portion thereof so that liquid pooling in the sediment reservoir can flow along the third deflector and through the aperture to exit the pit.

Abstract: In one embodiment the invention relates to a filter media for removal of contaminants from water comprising aluminium coated granular activated carbon and granular zeolite. Another embodiment relates to a method of producing aluminium coated granular activated carbon comprising exposing granular activated carbon to an aqueous solution comprising one or more aluminium salts which is acidified to a pH of between about 5 and about 6.8, removing the aqueous solution and washing and drying the aluminium coated granular activated carbon that is produced. Further embodiments relate to: a filter system for removal of contaminants from water comprising (i) a middle zone comprising granular activated carbon and granular zeolite and (ii) a lower barrier zone comprising screening material, wherein the system allows a flow rate of water there through of from about 0.5 Lsec-1 m?2 to about 10 Lsec?1m31 2; a cartridge containing the filter system and related methods of removing contaminants from water.

Abstract: A method of modelling a water harvesting and treatment system, the method comprising: receiving modelling data, the modelling data comprising a plurality of parameters relating to intended application of the water harvesting and treatment system; accessing rainfall data for a geographic region for a predetermined historical period, the rainfall data comprising data for a plurality of predetermined time increments over the historical period; and generating a model of the water harvesting and treatment system based on the rainfall data and the modelling data.