堆肥
腐殖质
渣
肥料
化学
食品科学
有机质
农学
土壤水分
生物
生态学
有机化学
作者
Yang Xu,Zhitao Bi,Yingchao Zhang,Hao Wu,Lei Zhou,Hongqiong Zhang
标识
DOI:10.1016/j.biortech.2022.127380
摘要
The polyphenol humification pathway is essential for soil-forming and compost maturing processes. This study explored the effects of adding different proportions of polyphenol-rich wine grape pomace (WGP) on humification performance and microbial dynamics during pig manure (PM) composting. The results demonstrated that WGP effectively prolonged the duration of the thermophilic period, and improved humification production and compost maturity by enhancing beneficial interactions among microorganisms. Moreover, adding 40% WGP was optimal for nitrogen conservation, and the corresponding germination index (GI) reached 95%. Excitation-emission matrix (EEM) fluorescence spectroscopy analysis suggested that optimizing the WGP content was conducive to the conversion of protein-like substances, which improved the humification of organic matter. In addition, structural equation modelling (SEM) demonstrated that polyphenol content and temperature were the key parameters affecting the humification products. The results showed that WGP holds great promise to improve composting progress and fertilizer quality for biowaste utilization.
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