Characterization of solid waste deposit using electrical resistivity tomography and time domain induced polarization.

Autor: Chao C; School of Civil Engineering, Shandong University, Jinan, 250061, China. Electronic address: chaochen@mail.sdu.edu.cn., Ma X; School of Civil Engineering, Shandong University, Jinan, 250061, China. Electronic address: maxmkzx@mail.sdu.edu.cn., Liu S; School of Civil Engineering, Shandong University, Jinan, 250061, China. Electronic address: lslsdu@sdu.edu.cn., Zheng C; Water Resources Research Institute of Shandong Province, Jinan, 250014, China. Electronic address: zhengchuanpeng1128@163.com., Mao D; School of Civil Engineering, Shandong University, Jinan, 250061, China. Electronic address: maodeqiang@sdu.edu.cn.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2024 Aug; Vol. 366, pp. 121854. Date of Electronic Publication: 2024 Jul 16.
DOI: 10.1016/j.jenvman.2024.121854
Abstrakt: The whopping increase in solid waste landfills poses serious threats to the environment. Compared to the drilling method, geophysical methods are effective, non-invasive techniques for delineating the contaminant distribution. In this study, electrical resistivity tomography (ERT) and induced polarization (IP) were used to investigate a solid waste deposit. The results of ERT/IP imaging illustrate the potential of the method in environmental studies. Based on the results of 21 survey lines, geo-electrical signals can be summarized as three types: with only high resistivity for construction & demolition wastes (CDWs) areas (RO type), contaminated soil for high chargeability (CO type), and contaminants under CDWs layer have both high resistivity and chargeability (RC type). Chargeability values over 10.2 mV/V correspond to contaminated soil with an overall concentration larger than 75 mg/kg. With the three-dimensional interpolation results and the determined chargeability criteria, the total volume of contaminated soil is 40,555 cubic meters. Finally, comparing the efficiency, cost and results of IP and drilling sampling methods shows that the IP is an efficient, low-cost and high-resolution contamination characterization. The results support that ERT/IP information can fulfill rapid and initial identification as a reliable tool in engineering and environmental investigations.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: