Contaminant occurrence and migration between high-and low-permeability zones in groundwater systems: A review

X You, S Liu, C Dai, Y Guo, G Zhong, Y Duan - Science of the total …, 2020 - Elsevier
In recent decades, water quality problems that impact human health, especially groundwater
pollution, have been intensely studied, and this has contributed to new ideas and policies …

PFOS mass flux reduction/mass removal: impacts of a lower-permeability sand lens within otherwise homogeneous systems

M Hitzelberger, NA Khan, RAM Mohamed… - … science & technology, 2022 - ACS Publications
Perfluorooctane sulfonic acid (PFOS) is one of the most common per-and polyfluoroalkyl
substances (PFAS) and is a significant risk driver for these emerging contaminants of …

Hydraulic tomography: 3D hydraulic conductivity, fracture network, and connectivity in mudstone

CR Tiedeman, W Barrash - Groundwater, 2020 - Wiley Online Library
We present the first demonstration of hydraulic tomography (HT) to estimate the three‐
dimensional (3D) hydraulic conductivity (K) distribution of a fractured aquifer at high …

Microbial community response to a bioaugmentation test to degrade trichloroethylene in a fractured rock aquifer, Trenton, NJ

JC Underwood, DM Akob, MM Lorah… - FEMS Microbiology …, 2022 - academic.oup.com
Bioaugmentation is a promising strategy for enhancing trichloroethylene (TCE) degradation
in fractured rock. However, slow or incomplete biodegradation can lead to stalling at …

Imaging pathways in fractured rock using three‐dimensional electrical resistivity tomography

J Robinson, L Slater, T Johnson, A Shapiro… - …, 2016 - Wiley Online Library
Major challenges exist in delineating bedrock fracture zones because these cause abrupt
changes in geological and hydrogeological properties over small distances. Borehole …

[HTML][HTML] Unravelling the salinity origins in the coastal aquifer/aquitard system of the Volturno River (Italy)

N Colombani, L Alessandrino, M Gaiolini, MP Gervasio… - Water Research, 2024 - Elsevier
To counteract the ongoing salinization of coastal aquifers, which poses a significant
environmental and socioeconomic challenge to local communities, it is necessary to first …

Porosity and pore size distribution in a sedimentary rock: Implications for the distribution of chlorinated solvents

AM Shapiro, CE Evans, EC Hayes - Journal of contaminant hydrology, 2017 - Elsevier
Characterizing properties of the rock matrix that control retention and release of chlorinated
solvents is essential in evaluating the extent of contamination and the application of …

[HTML][HTML] Contaminant back diffusion from low-conductivity matrices: Case studies of remedial strategies

J Blue, T Boving, ME Tuccillo, J Koplos, J Rose… - Water, 2023 - mdpi.com
Recalcitrant groundwater contamination is a common problem at hazardous waste sites
worldwide. Groundwater contamination persists despite decades of remediation efforts at …

Abiotic dechlorination in the presence of ferrous minerals

CE Schaefer, P Ho, E Berns, C Werth - Journal of Contaminant Hydrology, 2021 - Elsevier
Laboratory batch experiments were performed to assess the reduction of trichloroethene
(TCE) and oxygen via natural ferrous minerals. TCE reduction under anoxic conditions was …

Bioremediation in fractured rock: 1. Modeling to inform design, monitoring, and expectations

CR Tiedeman, AM Shapiro, PA Hsieh… - …, 2018 - Wiley Online Library
Field characterization of a trichloroethene (TCE) source area in fractured mudstones
produced a detailed understanding of the geology, contaminant distribution in fractures and …