Monitoring well utility in a heterogeneous DNAPL source zone area: Insights from proximal multilevel sampler wells and sampling capture-zone modelling
نویسندگان
چکیده
منابع مشابه
Dnapl Source Zone Characteriza- Tion Using a Stochastic Aggregation Model
DNAPL source zone characterization is important for risk assessments, feasibility studies, and identification of appropriate remediation technologies. If sufficient DNAPL is released into the subsurface, it can penetrate the water table because of its relative density to water. When the DNAPL is also less viscous than water, an inherently unstable DNAPL-water displacement occurs. Descriptions o...
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The invasion of DNAPL into fractured low permeability deposits results in the formation of secondary source zones that represent a long-term source of VOCs to adjacent aquifers. We present data from a site underlain by a fractured mudstone contaminated with TCE DNAPL that was poised for release following remediation of the overlying aquifer. Observations of contaminant distributions and fractur...
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This study is an attempt to introduce scientific fundamentals and available methods for wellhead protection area (capture zone) delineation for drinking water wells in cities. The results of this study could obviate some demands of the national water and wastewater company in quality control of the drinking water resources by delineation and application of the wellhead protection areas. For thi...
متن کاملFundamentals of the Capture Zone Calculations to Qualitatively Protect Cities Drinking Water Wells
This study is an attempt to introduce scientific fundamentals and available methods for wellhead protection area (capture zone) delineation for drinking water wells in cities. The results of this study could obviate some demands of the national water and wastewater company in quality control of the drinking water resources by delineation and application of the wellhead protection areas. For thi...
متن کاملArchitecture, persistence and dissolution of a 20 to 45 year old trichloroethene DNAPL source zone.
A detailed field-scale investigation of processes controlling the architecture, persistence and dissolution of a 20 to 45year old trichloroethene (TCE) dense non-aqueous phase liquid (DNAPL) source zone located within a heterogeneous sand/gravel aquifer at a UK industrial site is presented. The source zone was partially enclosed by a 3-sided cell that allowed detailed longitudinal/fence transec...
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ژورنال
عنوان ژورنال: Journal of Contaminant Hydrology
سال: 2018
ISSN: 0169-7722
DOI: 10.1016/j.jconhyd.2018.02.001