Engineered biochar amended co-composting for greenhouse gas mitigation, nitrogen conservation, and eco-efficiency assessment
文献类型： 外文期刊
作者： Huang, Yanyan 1 ; Yang, Xu 1 ; Li, Jianhong 1 ; Wang, Hailong 4 ; Yang, Hongzhu 1 ; Yang, Tingting 1 ; Zhang, Dongming 5 ; Zhang, Xianghui 1 ; Lin, Wenhui 1 ; Cheng, Caiwang 1 ; Jeyakumar, Paramsothy 7 ; Li, Ronghua 2 ; Lin, Qinghuo 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, Key Lab Biol & Genet Resources Rubber Tree, Minist Agr & Rural Affairs, Haikou 571101, Hainan, Peoples R China
2.Northwest A&F Univ NWAFU, Coll Nat Resources & Environm, Yangling 712100, Peoples R China
3.Hainan Observat & Res Stn, Danzhou Soil Environm Rubber Plantat, Danzhou 571737, Hainan, Peoples R China
4.Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Guangdong, Peoples R China
5.Hainan Acad Agr Sci, Agr Environm & Soil Res Inst, Hainan Key Lab Arable Land Conservat, Haikou 571100, Hainan, Peoples R China
6.Guangdong Agr Ind Business Polytech, Guangzhou 510507, Peoples R China
7.Massey Univ, Sch Agr & Environm, Environm Sci Grp, Private Bag 11 222, Palmerston North 4442, New Zealand
关键词： Chicken manure; Co-composting; Engineered biochars; Greenhouse gases; Nitrogen conversion; Eco-efficiency assessment
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 5 期
页码：
收录情况： SCI
摘要： Greenhouse gas (GHG) emissions during aerobic composting are unavoidable, but effective additives can significantly reduce emissions. Hence, this study intended to investigate the influence of different engineered biochar, modified with various materials (MgO, NaOH, Na2SiO3, and HNO3), on GHG emissions, bacterial community structure, and eco-efficiency during the co-composting process of chicken manure (CM) and bagasse. Six treatments were established, including a control (CK, a mixture of CM and bagasse), as well as treatments incorporating biochar (BC), MgO-biochar (MOBC), NaOH-biochar (SHBC), Na2SiO3-biochar (SSBC), and HNO3-biochar (NABC), respectively. These treatments underwent aerobic composting for 35 days. The findings show that engineered biochar significantly reduced GHG emissions compared to CK. Specifically, MOBC achieved a substantial 66.31 % reduction in cumulative NH3 emissions, while SHBC recorded the lowest cumulative N2O emissions. Furthermore, after composting, the MOBC treatment resulted in a significant increase of 75.72 % in amino acid nitrogen and an even more pronounced increase of 1516.02 % in amino sugar nitrogen. In contrast, the SSBC treatment led to increases of 66.81 % in amino acid nitrogen and 253.53 % in amino sugar nitrogen. The Mantel test revealed that the combination of Luteimonas, Persicitalea, and Taibaiella bacteria significantly influenced the levels of NH4+-N and organic nitrogen. Regarding GHG emissions and nitrogen retention, the ecoefficiency analysis demonstrated that MOBC exhibited superior performance, suggesting its potential as an effective material for enhancing the eco-efficiency of the co-composting process.
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