This article aimed to study the effect of phosphate rock powder addition on the humic acid evolution of food waste composting.A total of 4 treatments were set up,and the entire composting cycle lasted for 30 days.The results showed that:(1)adding 10％and 15％(mass fraction)phosphate rock powder could promote the humification of composting.(2)Adding 10％phosphate rock powder was beneficial for the formation of complex components(C3 and C4)in humin.(3)The addition of phosphate rock powder was beneficial for promoting the growth of microorganisms Thermobifida,Bacillus,Lentibacillus and Gracilibacillus,inhibiting the growth of Lactobacillus,and therefore promoting the formation of humic acid.
维普
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