Method and system for treatment of biological wastes for preparation of fertilizers
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United States of America Patent
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Jun 11, 2013
Grant Date -
Dec 1, 2011
app pub date -
May 25, 2010
filing date -
May 25, 2010
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Abstract
A method and system for treatment of biological wastes for preparation of fertilizers is provided. The method and system involves mixing a biological waste with a dilute sulfuric acid in a predetermined ratio. The mixture of the biological waste and the dilute sulfuric acid is then filtered to obtain an organic slurry and an acidic liquid. Thereafter, the organic slurry is thermally cracked at an elevated temperature to obtain at least one of an ammonia gas, one or more flue gases, and char and ash. The method and system further involves utilizing the ammonia gas, the char and ash, and the acidic liquid for preparation of the fertilizers.
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