沈阳大学学报（自然科学版）2026，Vol.38Issue(4)：280-287,8.
玉米秸秆高温好氧堆肥系统参数优化分析
Optimization Analysis of System Parameters for High-Temperature Aerobic Composting of Corn Straw
摘要
Abstract
To promote the high-value utilization of corn straw,a high-temperature aerobic composting process with the addition of hyperthermophilic bacteria was adopted,and the composting parameters were optimized through a four-factor,three-level orthogonal experiment.Initial moisture content,C/N ratio(m(C)∶m(N)),aeration rate,and turning frequency were selected as influencing factors,while the proportion of the high-temperature period,electrical conductivity,seed germination index,and pH were used as maturity indicators.Range analysis and significance analysis were combined to determine the optimal process combination.The results showed that the degree of influence of each factor on composting performance was in the order of C/N ratio,moisture content,turning frequency,aeration rate.The optimal parameters were an initial C/N ratio of 20,a dynamic aeration mode(900～500 mL·min-1),an initial moisture content of 55％,and a turning cycle of 2 d.Among the nine experimental groups inoculated with thermophilic bacteria,one group achieved a maximum pile temperature of 72 ℃,a hyperthermic phase(≥ 65 ℃)lasting 9 d,and product parameters of electrical conductivity 3.25 mS·cm-1,seed germination index 87.7％,and pH 8.49—all meeting the national standards for organic fertilizer maturity.The addition of hyperthermophilic bacteria significantly increased the composting temperature and maturation efficiency,enabling the synergistic harmless treatment,resource recovery,and mass reduction of corn straw and chicken manure.关键词
秸秆还田/高温好氧堆肥/超嗜热菌/堆肥温度/堆肥腐熟度Key words
straw returning/high-temperature aerobic composting/hyperthermophilic bacteria/composting temperature/compost maturity分类
农业科技引用本文复制引用
苑春莉,樊春艳,鲁长昊,马峰,赵超越,李秀芹,付明明,段梦娜,王蕙心..玉米秸秆高温好氧堆肥系统参数优化分析[J].沈阳大学学报（自然科学版）,2026,38(4):280-287,8.基金项目
中国博士后科学基金面上项目(2020M680980). （2020M680980）
