在城市固体废物中,降雨引起的液气相互作用和孔气压模型
Chao Liu1, Jianyong Shi1, Shi Shu1
1Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, 210024, China; Geotechnical Engineering Research Institute, Hohai University, Nanjing, 210024, China.
Journal of environmental management
|February 17, 2026
概括
降雨对垃圾填埋场的水分和气体压力产生重大影响. 这项研究揭示了整个废物降解过程中的合液体-气体相互作用,这对于预测雨水期间的垃圾填埋行为至关重要.
科学领域:
- 环境工程 环境工程
- 地质技术工程 地质技术工程
- 废物管理 废物管理
背景情况:
- 垃圾填埋场的湿度动态和气体生成是关键的,但通常是孤立地研究的.
- 之前的研究缺乏对垃圾填埋场降解时间表中的液态气体相互作用的理解.
- 降雨对这些合过程的影响仍未得到充分研究.
研究的目的:
- 为了研究垃圾填埋场废物柱中的雨水诱导的液态气体相互作用.
- 在各种废物降解阶段分析这些相互作用.
- 开发垃圾填埋场孔隙气体压力的预测模型.
主要方法:
- 在废物柱上进行了降雨模拟实验.
- 研究了四个关键的降解时间:开始,峰值气体产量,以及从峰值降低50%/95%.
- 开发并验证了孔气压的预测模型.
主要成果:
- 确定了三个不同的透阶段:降雨控制,不和和和.
- 已经证明了透能力对浪费降解时间的高度敏感性.
- 通过同步的湿度和气体压力反应,观察到合但竞争的液体-气体相互作用.
结论:
- 降雨大大改变了垃圾填埋场的水分和气体动力学.
- 废物降解阶段对透和液体-气体相互作用产生重大影响.
- 开发的模型准确地预测了孔气压,提高了垃圾填埋场管理策略.
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