Results 21 to 30 of about 67,668 (174)
Role of the clay lenses within sandy aquifers in the migration pathway of infiltrating DNAPL plume: A numerical investigation [PDF]
arXiv, 2023 The use of numerical based multi-phase fluid flow simulation can significantly aid in the development of an effective remediation strategy for groundwater systems contaminated with Dense Non Aqueous Phase Liquid (DNAPL). Incorporating the lithological heterogeneities of the aquifer into the model domain is a crucial aspect in the development of robust ...
arxiv
Dispersion of a fluid plume during radial injection in an aquifer [PDF]
, 2021 This study outlines a model for injected fluid flow in a vertically confined porous aquifer with mechanical dispersion. Existing studies have investigated the behaviour and geometry of immiscible fluid flow in this setting, where the injected fluid displaces the resident fluid, forming a sharp interface between the two.
arxiv +1 more source
Groundwater age, life expectancy and transit time distributions in advective-dispersive systems: 1. Generalized reservoir theory [PDF]
Advances in Water Resources 29 (2006) 1267-1291, 2011 We present a methodology for determining reservoir groundwater age and transit time probability distributions in a deterministic manner, considering advective-dispersive transport in steady velocity fields. In a first step, we propose to model the statistical distribution of groundwater age at aquifer scale by means of the classical advection ...
arxiv +1 more source
Unconfined Aquifer Flow Theory - from Dupuit to present [PDF]
, 2013 Analytic and semi-analytic solution are often used by researchers and practicioners to estimate aquifer parameters from unconfined aquifer pumping tests. The non-linearities associated with unconfined (i.e., water table) aquifer tests makes their analysis more complex than confined tests.
arxiv +1 more source
Геохімія техногенезу, 2021 The article presents the physical and geographical characteristics of the Synychan water intake section of the Izium water intake, which is located 8 km southeast of the city of Izium, Kharkiv region.
I. Udalov,, D. Piatash
doaj +1 more source
Tidal response of groundwater in a leaky aquifer: application to Oklahoma [PDF]
, 2018 Quantitative interpretation of the tidal response of water levels measured in wells has long been made either with a model for perfectly confined aquifers or with a model for purely unconfined aquifers. However, many aquifers may be neither totally confined nor purely unconfined at the frequencies of tidal loading but behave somewhere between the two ...
arxiv +1 more source
When Do Complex Transport Dynamics Arise in Natural Groundwater Systems? [PDF]
Water Resources Research 2020, 2019 In a recent paper (Trefry et al., 2019) we showed that the interplay of aquifer heterogeneity and poroelasticity can produce complex transport in tidally forced aquifers, with significant implications for solute transport, mixing and reaction. However, what was unknown was how broadly these transport dynamics can arise in natural groundwater systems ...
arxiv +1 more source
Metabolic Diversity and Aero-Tolerance in Anammox Bacteria from Geochemically Distinct Aquifers
mSystems, 2022 Anaerobic ammonium oxidation (anammox) is important for converting bioavailable nitrogen into dinitrogen gas, particularly in carbon-poor environments.
Olivia E. Mosley +7 more
doaj +1 more source
Texas Water JournalThe Greater Edwards Aquifer Alliance outlines the opportunities present in the Texas Hill Country to use recycled water to alleviate the burdens placed on the Edwards and Trinity aquifers by focusing on the present state of recycled water use in Comal ...
Rachel Hanes
doaj +1 more source
Numerical Simulation Study of the Upper Aquifer Impact on the Coalbed Methane Production
Frontiers in Energy Research, 2022 The coalbed methane (CBM) resources in the Qinshui Basin are abundant with exceptional production potential. Coalbed methane wells usually need to be hydraulically fractured to build economical production.
Yue Ping +7 more
doaj +1 more source