| 摘要 |
<p>A process for treating particulate raw poultry litter includes the steps of reacting the litter with acid to reduce the pH of the litter and stabilize the volatile or potentially volatile nitrogen compounds in the litter, thereafter reacting the acidified litter with ammonia to increase the pH. The acid-ammonia reaction generates heat which may be utilized to vaporise moisture and/or reduce the pathogen content of the litter. Odorants in the off-gases can be removed by contacting the off-gases with acid. </p> |
