Influencing factors of directional acid production by anaerobic fermentation of food waste
With the continuous promotion of refuse classification,the amount of food waste has rapidly increased.Because food waste easily goes bad,it may cause secondary pollution during collection,transportation and storage.Therefore,the disposal of food waste has gradually become a research hotspot.The main existing treatment technologies include landfill,incineration,aerobic composting,anaerobic fermentation,etc.Since incineration and landfill are not environmentally friendly,aerobic composting and anaerobic fermentation are more conducive to the conversion of waste into resources.Hydrolysis and acid production is a research direction of anaerobic fermentation technology,and food waste is a suitable raw material for acid production.Therefore,this article reviewed and analyzed the development of hydrolysis acid production technology.Based on the metabolic mechanism of hydrolysis acid production from food waste,it focused on two factors that affect the acid production effect of food waste,namely hydrolysis microorganisms and hydrolysis conditions.For different application occasions of volatile fatty acids,the required acid composition was discussed,and the types of acid-producing microorganisms and their acid-producing effects were analyzed and summarized.The effects of different pH,temperature,organic load and reagents on acid-producing were analyzed,and solutions were proposed for targeted acid-producing,hoping to provide support for future research.
万方数据
维普
