elements groundwater series

1. Introduction. From the beginning of human civilization to this date, water resources have been playing a very crucial role on public health, food production and economic development (Asha et al., 2020; Al- Asad et al., 2023, Alam et al., 2020).For the purposes of human consumption and crop cultivation, freshwater resources, especially …

The lanthanide series are elements characterized as having one or more electrons in the 4f electronic orbitals for their ground state configuration. Promethium undergoes rapid radioactive decay and is …

PC1, which represents the more mobile trace elements in the groundwater, consisted of Li, B, Mn, Fe, As, and Si. PC2 included Al, Ni, Cd, and Sb, and represents ORP-insensitive properties.

The shallow groundwater in the Poyang Lake area is one of the important sources of drinking water. However, there has been no systematic assessment on the groundwater quality associated with human consumptions. Here, we reported the concentrations and distributions of heavy metals/trace elements in the groundwater. …

Trace elements include metals, such as lead and iron; metalloids, such as arsenic; and radionclides (radioactive elements), such as radium and radon. Trace elements in our Nation's streams, rivers, and groundwater have natural and manmade sources. Rock weathering, soil erosion, and dissolution of water-soluble salts are …

This is the first book of its kind to focus on the geochemistry of the lanthanide series elements in groundwater/aquifer environments. The contributors are leading researchers in the study of low-temperature geochemistry of rare earth elements. Individual chapters address analytical techniques, water-rock interactions, aqueous complexation, …

Rare Earth Elements in Groundwater Flow Systems is the first volume of its kind entirely focused on the geochemistry of the lanthanide series elements in groundwater/aquifer …

An overview of the general types of applications of analytic elements in ground water modeling is provided in this paper. While not fully encompassing, the applications described here cover areas where the method has been historically applied (regional, two-dimensional steady-state models, analyses of ground water–surface …

Understanding the coupling relationship of typical elements between surface water (SW) and groundwater (GW) is helpful to the prevention of regional water environment pollution. In this study, the coupling of typical elements (C, N, P) of SW and GW in the middle reaches of the Yangtze River was comprehensively analyzed using …

Abstract. Dissolved trace elements, including iron and manganese, are often an important factor in use of ground water for drinking-water supplies in the glacial aquifer system of the United States. The glacial aquifer system underlies most of New England, extends through the Midwest, and underlies portions of the Pacific Northwest and Alaska.

Trace amounts of rare elements are found within groundwater and are of interest to geochemists. Europium and terbium are lanthanide-series elements that can be measured from the intensity of their fluorescence emitted when a solution is illuminated with ultraviolet radiation. Certain organic compounds that bind Eu (III) and Tb (III) enhance the ...

USGS Numbered Series: Title: Geochemical conditions and the occurrence of selected trace elements in groundwater basins used for public drinking-water supply, Desert and Basin and Range hydrogeologic provinces, 2006-11: California GAMA Priority Basin Project: Series title: Scientific Investigations Report: Series number: 2014-5173: DOI: 10.3133 ...

Samples of shallow groundwater that underlies much of the irrigated area in the western San Joaquin Valley, CA, were analyzed for various major ions and trace elements, including selenium. Concentrations of the major ions generally were similar for groundwater collected in the two primary geologic zones - the alluvial fan and basin …

Arsenic concentrations in groundwater extracted from quaternary alluvial sediments pose a serious health issue for inhabitants living in several countries in Southeast Asia. A widely approved hypothesis states that reductive dissolution of Fe-bearing minerals releases As oxyanions to ground water and the original source of As …

Key issues in groundwater research include inferring rates of transport of chemical constituents, determining the ages of groundwater, and tracing water masses …

Dynamic monitoring data of the groundwater level form an important basis to understand the current state of groundwater development and utilization, which is required to plan its sustainable exploitation. The dynamic data of groundwater level are typical space-time series data with the characteristics of nonlinear strong space-time …

Becky Schuerman - Extension Associate, Domestic Water & Wastewater. There are naturally occurring elements and minerals within Nebraska geology, and with that, it is …

Published by the American Geophysical Union as part of the Water Resources Monograph Series, Volume 13. The finite element method is now widely used to solve a variety of important problems in the field of groundwater hydrology. Thus a clear understanding of the method is essential to scientists and engineers working in this field. The goal of this …

There are naturally occurring elements and minerals within Nebraska's geology, and with that, it is not uncommon to find them in Nebraska's groundwater. Calcium, magnesium, iron, manganese, fluoride, arsenic, and uranium are among the elements found in Nebraska. This month, the spotlight series continues with iron and …

Regional finite-difference models tend to have large cell sizes, often on the order of 1–2 km on a side. Although the regional flow patterns in deeper formations may be adequately represented by such a model, the intricate surface water and groundwater interactions in the shallower layers are not. Several stream reaches and nearby wells may occur in a …

The behavior of U- and Th-series nuclides in groundwater. December 31, 2003. Groundwater has long been an active area of research driven by its importance both as a societal resource and as a component in the global hydrological cycle. Key issues in groundwater research include inferring rates of transport of chemical constituents, …

The goal of the study was to contrast three groundwater models that use the finite element approach to simulate groundwater head prediction, SUTRA, FEMWATER, and FEFLOW. With an area of 60 km 2, the research area is the micro watershed in the Cheyyar River basin.

Rare earth elements in our environment are becoming important because of their utilization in permanent magnets, lamp phosphors, superconductors, rechargeable batteries, catalyst, ceramics and other applications. This study was conducted to evaluate the level of rare earth elements (REE) and the variability of their anomalous behavior in …

2.2 DGT Sampling Environment. The DGT sampling was performed in situ under the naturally prevalent conditions in the fractures. This allowed the system to work under the groundwater's low-redox conditions (otherwise, Fe(II) will oxidize and capture dissolved REEs) and high pressure (otherwise, CO 2 will be lost, leading to an increase …

Reports. Occurrence and distribution of iron, manganese, and selected trace elements in ground water in the glacial aquifer system of the northern United States. May 30, 2009.

The boundary element method (BEM) has received increased attention as a method capable of solving problems containing material heterogeneity. The search for the efficient codes continues. The new technique expands the potential into a perturbation series and solves the resultant Laplace and Poisson equations, using the existing BEM …

This is the seventh factsheet of seven in a series that will help Ontario's farmers and rural residents learn more about groundwater. This factsheet reviews water quality testing, the interpretation of water quality test results and commonly available treatment methods for private water wells. The OMAFRA Factsheets in the Groundwater Series ...

We analysed temporal variations of trace element concentrations in groundwater from a 101 m-deep borehole (HA01) in northern Iceland during 2010-2018 and compared them with seismic and volcanic events that occurred in the same period to identify potential hydrogeochemical precursors. An increase of …

The present work deals with applications of the Boundary Element Method to several groundwater flow problems. Steady and transient cases are discussed; two-dimensional, axisymmetric and fully three-dimensional problems considered; it is also shown how features like orthotropy and anisotropy, piecewise homogeneous regions and semi …

To identify possible correlations between trace elements of the analysed groundwater and geological events, such as earthquakes and volcanic activity, we …

Major ions, trace elements, and isotope concentrations were measured in 11 representative groundwater samples that were collected from a series of aquifers in the Wugou coal mine, Anhui Province.

Contamination of groundwater by naturally occurring arsenic has recently become a disturbing environmental problem in Viterbo area, Central Italy. Arsenic concentrations in most of the public supply networks exceed the maximum allowable limit of 10 μg/l (WHO) for drinking water. The primary purpose of this paper is to obtain a better …

Depth to water measurements were converted to groundwater-level elevation time-series data according to methods described by Cunningham et al. . Groundwater-level elevation data were collected at sites denoted as groundwater (completed within crystalline bedrock) and mine water (completed within open mine …

There are naturally occurring elements and minerals within Nebraska's geology, and with that, it is not uncommon to find them in Nebraska's groundwater. Calcium, magnesium, iron, manganese, fluoride, arsenic and uranium are among the elements found in Nebraska. This month, the spotlight series continues with iron and …

Hydrograph clustering helps to identify dynamic patterns within aquifers systems, an important foundation of characterizing groundwater systems and their influences, which is necessary to effectively manage groundwater resources. We develope an unsupervised modeling approach to characterize and cluster hydrographs on regional …

It consists of 46 essays grouped into five parts. The topics covered by these essays range from the most basic aspects of ground-water hydrology to the identification and …

Certain organic compounds that bind Eu (III) and Tb (III) enhance the emission, and. Trace amounts of rare elements are found within groundwater and are of interest to geochemists. Europium and terbium are lanthanide-series elements that can be measured from the intensity of their fluorescence emitted when a solution is illuminated with ...

Physics-based groundwater flow modeling is a useful tool for the design and optimization of pump-and-treat systems for groundwater site cleanup. Numerical methods like finite differences and finite elements, and hybrid analytic elements, require boundary conditions (BC) to be assigned to the outer domain of the grid, mesh, or line elements.