Ammonia inhibition in high-solids biogasification: an overview and practical solutions

摘要

A comprehensive literature search was conducted to evaluate ammonia inhibition in biogasification. An overview of ammonia inhibition including the fundamentals of biochemical pathways of nitrogenous compounds, ammonia inhibition mechanisms and impact of free ammonia inhibition was conducted. Past studies and the experience gained with the pilot project at the University of California, Davis 9UC Davis) were reviewed and discussed. Long-term experimental studies at the pilot scale revealed that ammonia inhibition in a high-solids thermophilic anaerobic digestion occurs at ammonia concentration of 1200 mg 1~-1.