基于工艺参数优化的多源有机废弃物好氧堆肥效果及微生物群落研究

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中图分类号：S154.38；X712 文献标志码：A 文章编号：1671-4652（2025）06-0125-09

Research on the aerobic composting effect and microbial community of multiple-sources of organic waste based on optimization of process parameters

HUANG Tianyin 1，2 ，CHEN Kexiu 1，2 ， ZHONG Aicheng²， ZHU Liyan³ ，WANG Zhanghan 3 ， ZHUANG Jinlong 1，2 ， YANG Jingjing1.2

（1. School of Enuvironmental Science and Engineering， Suzhou University of Science and Technology，Suzhou 215009，China; 2. Suzhou Key Laboratory of Sponge City Technology，Suzhou 2l5009，China; 3. Suzhou River Management Department，Suzhou 215Ol1，China）

ABSTRACT：Tooptimize theaerobic composting process formultiple-sourcesof organic wasteand enhance composting efficiency，this study established anaerobic composting systemusing initial conditions of carbon nitrogen ratio（C/N，15， 20，25），ventilation capacity （0， 0. 25， 0. 5L⋅min-1 ），and moisture content 55% ， 65% ， 75% ）. Cyanobacteria，landscaping waste andrice husk were used ascomposting materials.Thecomposting efects of various piles andthechanges in microbialcommunities withintheoptimalpile were monitoredandanalyzed.Theresultsindicatedthattheinitial moisturecontent had the greatest impact on accumulated temperature and organic matter in composting process，while the initial C/N ratio significantlyinfluencedthesed germinatioindex，humus，humicacid，fulvicacid，anddegreeof polymerizationofhumus.The composting pile labeled as No. 6，with initial conditions of a C/N ratio of 25，a ventilation capacity of 0.25L⋅min-1 ，and a moisture content of 65% ，exhibited the best composting performance. Microbial analysis revealed that during the mesophilic phase，Proteobacteria was thedominant phylum for lignocellulose degradation，with Acinetobacteras the corresponding dominant genus.During the warming stage，Firmicutes emerged as the dominant phylum，followed by Actinobacteria as the secondary dominant phylum，with Bacillus and Streptomyces being the respective dominant genera.This study pro vides valuable insights for aerobic composting of multiple-sources of organic waste.

KEY WORDS： aerobic composting;C/N ratio;ventilation capacity； moisture content； maturity； microbial community

我国每年有机废弃物数量巨大，这些废弃物若处置不合理，会造成资源浪费、土地占用、环境污染等问题[1]。（剩余15753字）