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来自大都市垃圾填埋场的甲和二氧化碳表面排放量的量化,基于近乎连续的旋共变量测量

Minseok Kang¹, Sungsik Cho², Youngmin Lee³

¹National Center for AgroMeteorology, Seoul 08826, South Korea.

Waste management (New York, N.Y.)

|July 4, 2024

概括

苏多克文垃圾填埋场的垃圾填埋气体排放表明甲的波动和二氧化碳水平的下降. 持续监测对于准确的填埋气体库存和碳中和目标至关重要.

科学领域:

环境科学环境科学
大气化学大气化学
废物管理废物管理

背景情况:

苏多克文垃圾填埋场 (SL) 是一个主要的全球垃圾填埋场,其目标是通过减少垃圾填埋气体 (LFG) 排放,到2050年实现碳中和.
传统的LFG测量方法缺乏时空空间数据,在排放验证中产生不确定性.
2020年实施了一种联变量 (EC) 系统,以改善LFG排放监测.

研究的目的:

用先进的EC技术评估SL的LFG排放量 (CH4和CO2).使用先进的EC技术.
评估LFG管理策略和上层土壤植被对减排的有效性.
为准确的LFG库存解决不连续排放数据的时间升级方面的挑战.

主要方法:

从2020年3月到2022年2月,利用状共变率 (EC) 系统进行近连续的LFG流量测量.
采用基于随机森林的空隙填充和分区技术进行数据处理.
将EC数据与传统的动态流体室测量数据进行比较.

主要成果:

年度甲 (CH4) 排放量略有增加 (465.0至485.5克 C m-2).
年度二氧化碳 (CO2) 排放量显著下降 (408.7至270.6克 C m-2),原因是植被上层土壤的二氧化碳吸收增加.
欧盟委员会测量显示,废物分解,收集效率和大气压力影响LFG排放的高变化.

结论:

几乎连续的监测凸显了为了准确的LFG库存而提高不连续的表面排放数据的难度.
持续的LFG监测或可靠的代理数据,如大气CH4度,对于有效的垃圾填埋管理和碳中和性至关重要.
植被填埋场盖可以增强二氧化碳的吸收,有助于减排工作.

关键词:

持续的监控,持续的监控.埃迪的共变性埃迪共变性垃圾填埋场的天然气是什么表面排放的表面排放量时间的变化时间的变化.

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