Oxygen dynamics, organic matter degradation and main gas emissions during pig manure composting: Effect of intermittent aeration

文献类型： 外文期刊

第一作者： Zeng, Jianfei

作者： Zeng, Jianfei;Dong, Hongmin;Shen, Xiuli;Yin, Hongjie;Sun, Xiaoxi;Huang, Guangqun

作者机构：

关键词： Intermittent aeration; Oxygen utilization efficiency; GHG emission; NH 3 emission; Organic matter degradation

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.889； 五年影响因子：11.139 ）

ISSN： 0960-8524

年卷期： 2022 年 361 卷

页码：

收录情况： SCI

摘要： To investigate the effect of intermittent aeration on oxygen dynamics, organic matter degradation and main gas emissions, a lab-scale pig manure composting experiment was conducted with intermittent aeration (I_A, 30-min on and 30-min off) and continuous aeration (C_A). Although aeration volume and oxygen supply of I_A was only half of C_A, I_A could obviously enhance the oxygen utilization efficiency by 96.67 % and reduce energy dissi-pation for aeration by 50.87 %. Based on the comprehensive analysis of total organic matter, total carbon, total nitrogen, cellulose, hemicellulose and lignin contents, there was no significant difference in organic matter degradation between I_A and C_A (p > 0.05). Moreover, a reduction of 21.71 %, 38.93 %, 44.40 % and 62.19 % of CH4, N2O and the total GHG emission equivalent as well as NH3 emissions was realized, respectively, in I_A compared with C_A. Therefore, adopting intermittent aeration was a useful strategy and choice for high -efficiency, high-quality and environment-friendly composting.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序