从堆肥厂的甲排放量量化和影响甲排放的决定因素
Maklawe Essonanawe Edjabou1, Charlotte Scheutz1
1Department of Environmental and Resource Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
Waste management (New York, N.Y.)
|September 21, 2023
概括
丹麦堆肥厂的甲排放量因原料,技术和季节而异. 了解这些模式对于准确的国家温室气体预算和有效的气候减缓战略至关重要.
科学领域:
- 环境科学 环境科学
- 气候变化研究 气候变化研究
- 废物管理研究 废物管理研究
背景情况:
- 甲是一种强大的温室气体,准确的废物管理部门排放数据对于国家温室气体预算和气候减缓至关重要.
- 从堆肥设施中量化甲排放对于了解它们对气候变化的贡献至关重要.
研究的目的:
- 为量化丹麦五家商业堆肥厂的甲总排放量.
- 描述甲排放的时间和运行模式.
- 确定影响甲排放率和排放因子的因素.
主要方法:
- 甲排放量在一年的时间内使用追踪气体分散方法进行测量.
- 排放率以公斤CH4h-1量化.
- 排放因子是以公斤CH4Mg-1的处理原料来计算的.
主要成果:
- 甲排放率从8.0 ± 0.1到42.5 ± 1.5公斤CH4h-1.1不等.
- 综合无氧消化和开放式风厂 (4.51-5.21公斤CH4Mg-1) 的排放因子最高,其次是开放式风厂共堆肥花园/公园废物,污水泥和 (3.49-3.76公斤CH4Mg-1).
- 在只处理花园/公园垃圾的开放式风工厂观察到最低的排放因子 (1.56-3.24 kg CH4 Mg-1). 与秋冬相比,在工作时间和春夏期间的排放量更高.
结论:
- 堆肥厂的甲排放受到原料类型,堆肥技术,运营模式和季节的重大影响.
- 该研究为改进国家甲预算和在废物管理部门制定有针对性的减缓气候变化的战略提供了关键数据.
- 季节性变化和运营因素,如白天的时间,在甲排放水平上发挥着重要作用.
相关概念视频
01:30Environmental Applications of Microorganisms
46
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
46
02:27Limiting Reactant
59.1K
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However, in reality, the reactants are not always present in the stoichiometric amounts indicated by the balanced equation.
59.1K
01:05Estimation of the Physical Quantities
4.3K
On many occasions, physicists, other scientists, and engineers need to make estimates of a particular quantity. These are sometimes referred to as guesstimates, order-of-magnitude approximations, back-of-the-envelope calculations, or Fermi calculations. The physicist Enrico Fermi was famous for his ability to estimate various kinds of data with surprising precision. Estimating does not mean guessing a number or a formula at random. Instead, estimation means using prior experience and sound...
4.3K