Poultry litter-based fertilizer and a method for making the poultry litter-based fertilizer from poultry litter
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United States of America Patent
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Jun 6, 2023
Grant Date -
Oct 22, 2020
app pub date -
Jun 25, 2020
filing date -
Feb 20, 2019
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for producing a poultry litter-based fertilizer by a) supplying poultry litter to a rotating rotary drum, b) adding acid or a source of acid to the rotating rotary drum, wherein acid reacts with the poultry litter to form an acidified mixture, c) adding ammonia or a source of ammonia to the rotating rotary drum, d) drying and cooling the ammoniated product by evaporation of water to form a dried, cooled product in a free-flowing semi-solid or solid form, repeating the steps b) through d) until a desired nitrogen content is reached in the poultry litter-based fertilizer.
First Claim
Family
International Classification(s)
Cited Art Landscape
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