Patent ID: 8939676
Filing Date: 2015-01-27
Classification: B01D,C02F,F23G

Abstract:
1. A system for removing ammonia from landfill leachate, the system comprising: an economiser for producing high pressure hot water in a hot water circuit from heat exchange with a hot gas stream carrying waste heat; a boiler, heated by said high pressure hot water for producing steam; an ammonia stripper having: a leachate inlet connected to a leachate flow path, and an ammonia containing gas outlet, at an upper end thereof; a leachate discharge outlet connected to a leachate discharge flow path, a steam inlet connected to the boiler by a conduit, and a forced air inlet, at a lower end thereof; and a randomly packed bed between the upper end and the lower end; wherein, in use, the flow of steam and air in one direction and leachate in the opposite direction, within the ammonia stripper, releases ammonia from the leachate.