Amino acid fermentation liquid was prepared from waste feathers by microbial fermentation,and the influence of composting of kitchen waste was investigated.The results showed that the addition of amino acid fermentation liquid could improve the decomposition process and weight reduction effect of kitchen waste compost,and could effectively increase the content of alkali-hydrolytic nitrogen and available phosphorus in compost,and improved the activity of microorganisms,among which the activities of protease,amylase,cellulase and lipase increased by 21.29％,36.42％,43.83％and 11.16％,respectively.The addition of amino acid fermentation broth increased the complexity of bacterial community interaction and changed the structure of bacterial community,and the relative abundance of Bacillus and Klebsiella increased.GI,mass digestion rate,HA and amylase were positively correlated with colony structure,while HS,cellulase and available phosphorus were negatively correlated with colony structure.The study provides a new idea for using waste protein resources to cooperate with aerobic composting of kitchen waste in the future.
关键词
羽毛氨基酸发酵液/厨余垃圾/堆肥/微生物群落
Key words
feather amino acid fermentation/kitchen waste/composting/microbial community
维普
万方数据