Effects of semipermeable membrane-covered composting on greenhouse gas mitigation and microbiome at different ambient temperatures at an industrial scale

文献类型： 外文期刊

第一作者： Yuan, Junwei

作者： Yuan, Junwei;Lin, Siyuan;Wang, Yi;Hou, Jun;He, Wenxiang;Wu, Junda;Cai, Liang;Kong, Xiaoyan;You, Dongqi;Li, Yangyang;Liu, Bo

作者机构：

关键词： Aerobic composting; Greenhouse gas; Microbial community; Semipermeable membrane; Waste utilization

期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.2； 五年影响因子：7.6 ）

ISSN： 2213-2929

年卷期： 2025 年 13 卷 3 期

页码：

收录情况： SCI

摘要： Effective management practices can mitigate greenhouse gas (GHG) emissions during aerobic composting of manure. This study employed biochar, superphosphate, and citric acid as co-additives for emission reduction measures. Four industrial-scale treatments were conducted under hot and cold environmental temperatures to comprehensively assess the effects of emission reduction measures and semi-permeable membrane coverage on GHG emissions and microbial communities during aerobic composting of cattle manure. The study found that compared to the control, covering compost with a semipermeable membrane alone increased nitrous oxide (N2O) cumulative emissions by 13.46 % under high environmental temperatures. Regardless of temperature conditions, combining semipermeable membrane coverage with emission reduction measures significantly reduced cumulative emissions of methane (CH4) and N2O during composting by 21.44 %-52.78 % and 41.84 %-72.34 %, respectively, compared to the control. This was attributed to the decreases of AOA, nirS, and mcrA gene abundances, increases of nosZ gene abundance, and a decrease in Firmicutes by 9.67 %-54.28 % during the composting process. Therefore, the combination of emission reduction measures and semipermeable membrane covering represents a novel strategy to reduce the global warming potential (GWP) by modulating functional genes during aerobic composting of cattle manure.

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