Ground Water
SCOPUS (1963-2023)SCIE-ISI
0017-467X
1745-6584
Mỹ
Cơ quản chủ quản: WILEY , Wiley-Blackwell
Lĩnh vực:
Computers in Earth SciencesWater Science and Technology
Các bài báo tiêu biểu
Enhanced Degradation of Halogenated Aliphatics by Zero‐Valent IronAbstract Laboratory tests were conducted to examine zero‐valent iron as an enhancing agent in the dehalogenation of 14 chlorinated methanes, ethanes, and ethenes. All compounds were tested by batch procedures in which 10 g of 100‐mesh electrolytic iron was added to 40 ml hypovials. Aqueous solutions of the respective compounds were added to the hypovials, and the de... ... hiện toàn bộ
Tập 32 Số 6 - Trang 958-967 - 1994
Arsenic in Ground Water of the United States: Occurrence and GeochemistryAbstract Concentrations of naturally occurring arsenic in ground water vary regionally due to a combination of climate and geology. Although slightly less than half of 30,000 arsenic analyses of ground water in the United States were 1 μg/L, about 10% exceeded 10 μg/L. At a broad regional scale, arsenic concentrations exceeding 10 μg/L appear to be more frequently ... ... hiện toàn bộ
Tập 38 Số 4 - Trang 589-604 - 2000
Uses of Chloride/Bromide Ratios in Studies of Potable WaterAbstract In natural ground water systems, both chlorine and bromine occur primarily as monovalent anions, chloride and bromide. Although dissolution or precipitation of halite, biological activity in the root zone, anion sorption, and exchange can affect chloride/bromide ratios in some settings, movement of the ions in potable ground water is most often conservative... ... hiện toàn bộ
Tập 36 Số 2 - Trang 338-350 - 1998
Redox Processes and Water Quality of Selected Principal Aquifer SystemsAbstract Reduction/oxidation (redox) conditions in 15 principal aquifer (PA) systems of the United States, and their impact on several water quality issues, were assessed from a large data base collected by the National Water‐Quality Assessment Program of the USGS. The logic of these assessments was based on the observed ecological succession of electron acceptors s... ... hiện toàn bộ
Tập 46 Số 2 - Trang 259-271 - 2008
Microplastic Contamination in Karst Groundwater SystemsAbstract Groundwater in karst aquifers constitutes about 25% of drinking water sources globally. Karst aquifers are open systems, susceptible to contamination by surface‐borne pollutants. In this study, springs and wells from two karst aquifers in Illinois, USA, were found to contain microplastics and other anthropogenic contaminants. All microplastics were fibers, ... ... hiện toàn bộ
Tập 57 Số 2 - Trang 189-196 - 2019
Competitive Exclusion of Sulfate Reduction by Fe(lll)‐Reducing Bacteria: A Mechanism for Producing Discrete Zones of High‐Iron Ground WaterAbstract The Middendorf aquifer of South Carolina exhibits a 40‐kilometer‐wide zone where dissolved ferrous iron concentrations commonly exceed 1 mg/I. Downgradient of this zone, dissolved iron concentrations decrease to less than 0.05 mg/1. Geochemical and microbiologie evidence indicates that this zonation reflects the competitive exclusion of sulfate‐reducing act... ... hiện toàn bộ
Tập 30 Số 1 - Trang 29-36 - 1992
Caffeine and Pharmaceuticals as Indicators of Waste Water Contamination in WellsAbstract The presence of caffeine or human Pharmaceuticals in ground water with elevated nitrate concentrations can provide a clear, unambiguous indication that domestic waste water is a source of some of the nitrate. Water from domestic, public supply, and monitoring wells in three communities near Reno, Nevada, was sampled to test if caffeine or Pharmaceuticals ar... ... hiện toàn bộ
Tập 37 Số 3 - Trang 405-410 - 1999
A Field Experiment to Study the Behavior of Tetrachloroethylene Below the Water Table: Spatial Distribution of Residual and Pooled DNAPLAbstract This paper describes a field experiment involving the release of 230.9 liters of tetrachloroethylene (PCE) below the water table in a naturally occurring, unconfined sand aquifer. The release was executed in a 3 m X 3 m X 3.4 m deep, scalable‐joint steel sheet‐pile cell anchored into an underlying clay aquitard. After allowing 28 days for redistribution, ex... ... hiện toàn bộ
Tập 31 Số 5 - Trang 756-766 - 1993
So sánh các mô hình biến đổi sinh học bậc không, bậc một và Monod Dịch bởi AI
Tập 36 Số 2 - Trang 261-268 - 1998
Dưới một số điều kiện nhất định, mô hình động học bậc một không phải là đại diện chính xác cho sự phân hủy sinh học trong các tầng nước ngầm bị ô nhiễm. Mặc dù điều này đã được biết đến rằng giả thiết về động học bậc một chỉ hợp lệ khi nồng độ chất nền, S, nhỏ hơn nhiều so với hằng số nửa bão hòa, Ks, nhưng giả thiết này thường được đưa ra mà không xác minh điều kiện này. Chúng tôi trình bày một p...... hiện toàn bộ
Relative Importance of Baseflow and Quickflow from Hydrographs of Karst SpringAbstract Evaluation of recession hydrographs, from four karst springs in Europe, provides important information concerning the flow process operating in karst aquifer systems. Three analytic equations are used to evaluate the hydrographs: Mangin's equation, that assumes the recession is composed of both quickflow and baseflow; Coutagne's equation which considers the... ... hiện toàn bộ
Tập 32 Số 2 - Trang 267-277 - 1994