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Enhancing aerobic composting of cow dung and wheat straw with nanobubble water: Improved lignocellulose degradation and nutrient enrichment for increased crop biomass

文献类型： 外文期刊

作者： Zhang, Yu 1 ; Wang, Tianfeng 1 ; Wang, Lingying 2 ; Zhang, Yuqian 1 ; Liu, Zifan 1 ; Zhong, Mudan 1 ; Huang, Haizhou 1 ; Guo, Peilin 1 ; Luo, Dan 1 ; Zhang, Jining 3 ; Xu, Yuanshun 4 ; Chen, Jixiang 1 ;

作者机构： 1.Lanzhou Univ Technol, Coll Petrochem Engn, Lanzhou 730050, Peoples R China

2.China Natl Nucl Ind Corp 404, Jiayuguan 735100, Peoples R China

3.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China

4.Nanjing Inst Environm Sci, Minist Ecol & Environm Peoples Republ China, Nanjing 210042, Peoples R China

关键词： Moisture content; Enzyme activity; Bacterial community; Plant nutrient; Total biomass

期刊名称：WASTE MANAGEMENT （ 影响因子：7.1； 五年影响因子：8.0 ）

ISSN： 0956-053X

年卷期： 2025 年 198 卷

页码：

收录情况： SCI

摘要： Cow dung and wheat straw are rich in lignocellulose, which has a complex structure, making it difficult to biodegrade. This study investigated the promotion of composting effectiveness and product fertility by adding nanobubble water (Air, CO2, He, and N2) during aerobic composting of cow dung and wheat straw. Nanobubble water prolonged the high-temperature period by 1-2 days, increased the activity of soil urease and soil ligninase, reduced the lignocellulose content by 1.4 %-6.1 %, and increased the total potassium/total phosphorus ratio of the final compost products by 1.8 %-3.5 %/31.6 %-43.0 %. Nanobubble water of N2 significantly increased the total nitrogen of final compost products by 8.3 %. The lignocellulose content was significantly positively correlated with the moisture content, but significantly negatively correlated with the relative abundances of Georgenia and Marinimicrobium. The final compost products of the nanobubble water groups significantly increased the total biomass of cabbage by 37.1 %-195.3 %. The results showed that adding nanobubble water to aerobic compost of cow dung and wheat straw improved the biodegradation of lignocellulose and enriched the nutrient elements (total nitrogen, total phosphorus, and total potassium) of the final compost products. Among the four types of nanobubble water, N2-containing nanobubble water is the most promising.

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