Abstract: A water treatment apparatus includes a mixing tube through which the waste water passes for mixing into the waste water a plurality of chemicals for causing flocculation of contaminants. The mixing tube is connected to a settling chamber for allowing settling of the flocculated contaminants and for supplying clarified water at an outlet of the settling chamber. The mixing tube has a plurality of injection members at spaced positions along the duct, each including a pump and a chemical supply for injecting a selected quantity of a selected chemical into the duct and each including a respective mixing member and drive for mixing the chemical into the water in the duct. An electrical separation section is provided in the system before or after the settling and includes a duct, into which the water is introduced and a plurality of amorphous metal plates across the duct arranged to be charged at low voltage.

Abstract: A gasification system for producing useful energy from a source of biomass material includes a gasifier for partially combusting biomass material into gaseous fuel, a contained fuel preparation site for preparing biomass material to be delivered to the gasifier, a boiler for combusting gaseous fuel from the gasifier to produce useful energy, and an air delivery system for directing combustion air to at least one of the gasifier and the boiler from the contained fuel preparation site. This arrangement recovers energy normally lost to atmosphere in the form of exhaust from biomass drying facilities. Drawing combustion air from the contained fuel preparation site also permits the fuel preparation site to be maintained at a negative pressure in relation to atmosphere, therefore any odour that is produced from the preparation of the biomass at the site is contained within the closed air delivery system and used for primary combustion at the gasifier or at the boiler.