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

IF 11.3 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

{"title":"Integrated hydrothermal characterization of DNAPL source zones and subsurface heterogeneity for enhancing DNAPL thermal remediation prediction","authors":"Shujie Guo , Yuanyuan Zha , Dong Xu , Hua Zhong , Tian-Chyi Jim Yeh","doi":"10.1016/j.jhazmat.2025.138027","DOIUrl":null,"url":null,"abstract":"<div><div>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 (ln<em>k</em>) 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 ln<em>k</em> and source/sink conditions has a minor influence on the estimates.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"492 ","pages":"Article 138027"},"PeriodicalIF":11.3000,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hazardous Materials","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304389425009434","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}

引用次数: 0

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.

Abstract Image

查看原文本刊更多论文

DNAPL源区水热综合表征及地下非均质性增强DNAPL热修复预测

开发高效、经济的原位热处理（ISTT）策略来处理致密非水相液体（DNAPL）需要详细表征地下非均质性和DNAPL源区结构（SZA）。然而，目前的表征方法成本高昂，而且通常只能提供有关含水层和DNAPL SZA的有限信息。在本研究中，开发了一个数据融合框架来解释经istt处理的dna - pl污染区特定地点的观察结果。相互关联分析表明，istt期间观察到的温度、压力和提取的流量提供了有关含水层渗透率（link）分布和源/汇条件的最重要信息。通过数值实验，我们证明了所提出的反演框架的有效性，并且集成温度，压力和预处理污染物浓度数据进行反演可以获得最佳表征。结果还表明，链接和源/汇条件方差的不确定性对估算的影响较小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.