Ammonia stripper
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United States of America Patent
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Jan 27, 2015
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N/A
app pub date -
Feb 14, 2012
filing date -
Feb 14, 2011
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Abstract
A system for removing ammonia from landfill leachate comprising an economizer for producing high pressure hot water in a hot water circuit from heat exchange with a hot gas stream carrying waste heat; a boiler which is heated by the high pressure hot water to produce steam; and an ammonia stripper. The ammonia stripper has a leachate inlet connected to a leachate flow path, and an ammonia containing gas outlet. A leachate discharge outlet is connected to a leachate discharge flow path, and a steam inlet is provided which is connected to the boiler by a conduit. At a lower end of the ammonia stripper there is a forced air inlet. A randomly packed bed located between the upper end and the lower end. In use there is a flow of steam and air in one direction and of leachate in the opposite direction which releases ammonia from the leachate.
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