热带气候填埋场甲烷生成潜力和衰减常数的模拟

IF 0.8 Q4 ENGINEERING, ENVIRONMENTAL

Proceedings of the Institution of Civil Engineers-Waste and Resource Management Pub Date : 2022-12-21 DOI:10.1680/jwarm.21.00037

Renan Rodrigues Alves Santos, Maria do Socorro Costa São Mateus, A. S. M. Gadéa

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引用次数: 0

摘要

该研究利用IPCC数值模型和LandGEM and Biogas (CETESB)软件，对巴西热带气候下一个垃圾填埋场的甲烷生成进行了模拟，调整了甲烷生成势(Lo)和衰减常数(k)的参数值。采用大都会中心卫生填埋场第6单元(C6)公布的数据，对k和Lo进行了15种组合，以确定最能代表CH4生成的值范围。研究结果表明，k值在0.1至0.15年−1之间，Lo值在60至70 m³/t之间，可以很好地预测所选填埋场的CH4，误差低于30%。此外，当k = 0.15年−1和Lo = 60 m³/t时，这些区间能更好地代表CH4的生成。与2004年至2009年在C6测量的CH4相比，这一组合显示出估计误差小于6%，表明具有k和Lo的实验值对于调整模拟和校准使用的工具的重要性。

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Modelling of methane generation potential and decay constant for a tropical climate landfill

The study modelled the methane generation for a landfill in a tropical climate in Brazil, adjusting the values of the parameters of Methane Generation Potential (Lo) and Decay Constant (k), using the IPCC numerical model and LandGEM and Biogas (CETESB) software. Adopting published data from Cell 6 (C6) of the Metropolitan Center Sanitary Landfill, 15 combinations of k and Lo were performed to determine the ranges of values that best represented the generation of CH4. The results of the study allowed to conclude that values of k between 0.1 and 0.15 year−1, and Lo between 60 and 70 m³/t, resulted in simulations with good capacity to predict CH4 for the chosen landfill, obtaining errors lower than 30%. Furthermore, these intervals identified a better representation of CH4 generation for values of k equal to 0.15 year−1 and Lo equal to 60 m³/t. This combination showed estimation errors smaller than 6% when compared to CH4 measured at C6 between 2004 to 2009, showing the importance of having experimental values of k and Lo to adjust the simulations and calibrate the used tools.

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来源期刊

Proceedings of the Institution of Civil Engineers-Waste and Resource Management ENGINEERING, ENVIRONMENTAL-

CiteScore

1.70

自引率

14.30%

发文量

期刊介绍： Waste and Resource Management publishes original research and practice papers on all civil engineering and construction related aspects of the resource management cycle, from the minimization of waste, through the re-use and recycling, to the management and disposal of residual wastes. Associated legislation, standards, socio-economic considerations and links with sustainable consumption and production are included. The range of subjects covered encompasses, but is not restricted to, strategies for reducing construction waste through better design, improved recovery and re-use, more efficient resource management, the performance of materials recovered from wastes, and, the procurement, planning, design, construction, operation and logistics of waste and resource management facilities.