Integrated hydrothermal characterization of DNAPL source zones and subsurface heterogeneity for enhancing DNAPL thermal remediation prediction

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials Pub Date : 2025-03-23 DOI:10.1016/j.jhazmat.2025.138027

Shujie Guo , Yuanyuan Zha , Dong Xu , Hua Zhong , Tian-Chyi Jim Yeh

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Abstract

Developing efficient and cost-effective in-situ thermal treatment (ISTT) strategies for the treatment of dense nonaqueous phase liquid (DNAPL) requires detailed characterization of subsurface heterogeneity and DNAPL source zone architecture (SZA). However, current characterization methods are costly and often provide limited information about the aquifer and DNAPL SZA. In this study, a data fusion framework is developed to interpret the site-specific observation from DNAPL-contaminated zones treated with ISTTs. Cross-correlation analysis reveals that observed temperature, pressure, and extracted flow rates during ISTTs provide the most significant information about aquifer permeability (lnk) distribution and source/sink conditions. Using numerical experiments, we demonstrate the effectiveness of the proposed inversion framework, and integrating temperature, pressure, and pretreatment contaminant concentration data for inversion leads to the best characterization. Results also show that uncertainty in the variance of lnk and source/sink conditions has a minor influence on the estimates.

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来源期刊

Journal of Hazardous Materials 工程技术-工程：环境

CiteScore

25.40

自引率

5.90%

发文量

3059

审稿时长

58 days

期刊介绍： The Journal of Hazardous Materials serves as a global platform for promoting cutting-edge research in the field of Environmental Science and Engineering. Our publication features a wide range of articles, including full-length research papers, review articles, and perspectives, with the aim of enhancing our understanding of the dangers and risks associated with various materials concerning public health and the environment. It is important to note that the term "environmental contaminants" refers specifically to substances that pose hazardous effects through contamination, while excluding those that do not have such impacts on the environment or human health. Moreover, we emphasize the distinction between wastes and hazardous materials in order to provide further clarity on the scope of the journal. We have a keen interest in exploring specific compounds and microbial agents that have adverse effects on the environment.