Overview of Resource Utilization of Livestock and Poultry Manure

Abstract

In recent years, with the development of animal husbandry, more and more livestock and poultry manure has been generated. Currently, the most common methods for treating livestock and poultry manure are anaerobic fermentation and aerobic composting. Aerobic composting is a technology that uses animal manure for high-temperature composting and fermentation to degrade organic matter and convert it into humic substances. Anaerobic fermentation is an energy utilization technology that converts organic matter into combustible gases such as CH4 through the action of anaerobic microorganisms and produces biogas slurry and sludge. This article reviews two treatment methods for livestock and poultry manure, aerobic composting and anaerobic digestion, in order to provide reference for the research of humic acid organic fertilizers.