Co-amendment of dicyandiamide with waste carbonization products into composting: Enhanced fertility, reduced gas emission and increased economic benefits

文献类型： 外文期刊

第一作者： Huang, Wang

作者： Huang, Wang;Sun, Haijun;Jiang, Jiang;Huang, Wang;Wang, Yimeng;Xue, Lihong;Feng, Yanfang;Sun, Xiaolong;Gong, Xueliu;Bian, Rongjun;Gong, Xueliu;Bian, Rongjun

作者机构：

关键词： Biomass cycling; Compost fertility; DOM; NH3 volatilization; GHG emissions

期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：10.0； 五年影响因子：10.7 ）

ISSN： 0959-6526

年卷期： 2024 年 471 卷

页码：

收录情况： SCI

摘要： Dicyandiamide (DCD) could reduce composting nitrogen (N) losses, but the decomposes at high temperatures limited its efficacy, which might be mitigated by co-application with biochar (BC) and wood vinegar (WV). Our study revealed that DCD alone or co-applied with BC and WV did not reduce N2O emissions during the composting of chicken manure and wheat straw. However, it significantly decreased NH3 and CH4 emissions by 22.6-45.6% and 53.8-85.6%, respectively, equivalent to a 24.1-44.8% reduction in GWP compared to the control. Furthermore, the combined use of DCD with BC and WV enhanced total N content by 5.6-36.6%, increased the compost accumulation temperature by 3.8-6.1%. DCD alone addition increased the compost dissolved organic matter (DOM) content by 12.2%, and when coupled with BC and WV, it enhances the biological index value to promote new DOM generation. DCD combined with BC could increase the final humus content of compost, thereby enhancing its quality, which approach also produced greater economic benefits (266.3 CNY t(-1)), compared to conventional composting. In conclusion, co-application of DCD with BC and WV in composting not only reduces the emission of NH3, N2O and CH4, but also increases the compost fertility and provides more economic benefits.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序