Application of close-range aerial infrared thermography to detect landfill gas emissions: a case study

34th UIT Heat Transfer Conference 2016

Tanda, G.^1,2 ; Migliazzi, M.^3 ; Chiarabini, V.^4 ; Cinquetti, P.^5

DIME, University of Genoa, Genoa, Italy^1

RIT4Waste Center, University of Genoa, Genoa, Italy^2

GLOBI Hi-Tech Srl, Genoa, Italy^3

KIM-RemoteSensing GmbH, Klagenfurt Am Wörthersee, Austria^4

AMIU, Genoa, Italy^5

关键词: Biogas extraction;    Infra-red photographs;    Innovative approaches;    Landfill gas emissions;    Landfill surface;    Surrounding environment;    Thermal anomalies;    Waste disposal sites;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/796/1/012016/pdf
DOI  :  10.1088/1742-6596/796/1/012016

来源: IOP

【 摘 要 】

Monitoring waste disposal sites is important to check that the produced biogas, potentially explosive, is properly collected by the biogas extraction system of the landfill site and to evaluate the residual biogas flow escaping from upper surface of the landfill. As the biogas migrates to the surface, the soil through which it flows is expected to reach a higher temperature than the surrounding environment; thus, measuring the thermal footprint of the landfill soil surface could allow the detection of biogas leakages and spots suitable for the gas extraction. Close-range aerial infrared thermography is an innovative approach able to identify thermal anomalies with a good resolution over a large region of the landfill surface. A simple procedure to deduce the biogas flow rate emerging from the soil into the atmosphere, based on infrared thermography measurements, is presented. The approach has been applied to a case study concerning a large landfill located in Genoa (Italy). Aerial infrared photographs taken during different days and seasons showed the presence of thermal anomalies over regions along the peripheral boundary of the landfill still not interested in biogas extraction.