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Journal articles on the topic 'Groundwater Electric conductivity'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Sejati, Sadewa Purba. "The Characteristics of Shallow Groundwater Resource in Cangkringan District Sleman Province Special Region of Yogyakarta." Media Komunikasi Geografi 18, no. 2 (2018): 166. http://dx.doi.org/10.23887/mkg.v18i2.12903.

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Cangkringan District (the research site) is one of the districts in Sleman Regency of which spatial function includeswater catchment area. Holding the predicate as a water catchment area, the research area serves as one of the groundwater supply areas for the community living in Sleman Regency. One aspect of integrated water resources management is the water resources information system aspect, in which the geohydrology information system (groundwater) is included. Based on the aspect of water resources management, the study on shallow groundwater characteristics as catchment area in the resea

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El Moukhayar, R., M. Bahir, N. Youbi, N. Chkir, H. Chamchati, and P. Caréra. "Using geochemical investigations for determining the interaction between groundwater and saline water in arid areas: case of the Wadi Ouazzi basin (Morocco)." Proceedings of the International Association of Hydrological Sciences 366 (April 10, 2015): 162–63. http://dx.doi.org/10.5194/piahs-366-162-2015.

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Abstract. The characteristics of the Essaouira basin water resources are a semi-arid climate, which is severely impacted by the climate (quantity and quality). Considering the importance of the Essaouira aquifer in the groundwater supply of the region, a study was conducted in order to understand groundwater evolution in this aquifer. The Essaouira aquifer is a coastal aquifer located on the Atlantic coastline of southern Morocco, corresponding to a sedimentary basin with an area of nearly 200 km2. The control of the fluid exchange and the influence of mixing zones between the groundwater and

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Ifeanyichukwu, Kenechukwu A., Elizabeth Okeyeh, Okechukwu E. Agbasi, Onwe I. Moses, and Ogechukwu Ben-Owope. "Using Geo-electric Techniques for Vulnerability and Groundwater Potential Analysis of Aquifers in Nnewi, South Eastern Nigeria." Journal of Geology, Geography and Geoecology 30, no. 1 (2021): 43–52. http://dx.doi.org/10.15421/112105.

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   In Nnewi, Anambra State Nigeria, twenty vertical electrical sounding (VES) were performed to delineate vulnerability and transmissivity of identified aquifer within the study area. Hydraulic parameters (transverse resistance, longitudinal conductivity, hydraulic conductivity and transmissivity) were delineated from geoelectrical parameters (depth, thickness, and apparent resistance). The geo- parameters of the aquifer: apparent resistance from 1000.590 to 1914.480, thickness from 42.850 – 66.490 m and 65.530 to 100.400 m of depth. The estimated hydraulic parameters of the

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Binotto, Raquel Barros, Elba Calesso Teixeira, Antônio Flávio Uberti Costa, and Arthur Schimidt Nanni. "Use of the geophysical method EM 34-3 in the study of groundwater contamination by coal waste and ashes." Ciência e Natura 23, no. 23 (2001): 35. http://dx.doi.org/10.5902/2179460x27122.

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The main objective of this paper is to evaluate the efficiency of the geophysical technique EM – 34 – 3 in the study of the groundwater contamination by residues from coal processing. It was applied, in the coal waste and ashes disposal site – CH 20, located in the municipal district of Charqueadas, the electromagnetic geophysical method EM – 34 – 3, which measures the electric conductivity of the medium in subsurface. It was noticed that the highest anomalous electrical conductivity values and ions content were placed inside the disposal site with the most significant contamination situated i

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Iwatake, Kaname, and Akira Ueda. "Geochemical Study on the Annual Variation of Oxygen Isotope and Chemical Composition of Groundwater in the Sho River Alluvium Fan, Toyama, Japan, as an Investigation of Selected Qualitative Aspects of Efficient Utilization of Groundwater Heat." Geosciences 11, no. 8 (2021): 352. http://dx.doi.org/10.3390/geosciences11080352.

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Seasonal variations of water temperature, electric conductivity, and oxygen isotope and chemical composition of shallow groundwaters and river waters were determined in the Sho River alluvial fan, western Toyama Prefecture, Japan, to examine groundwater heat utilization for indoor climate control. Samples were collected at 31 sites every 2 months for 1 year and at 11 representative sites monthly. In addition, the results of monthly precipitation amount and oxygen isotope composition of precipitation collected within the region during the same period were also taken into account. The sources of

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Santiago, Marlucia F., C. M. S. V. Silva, J. Mendes Filho, and H. Frischkorn. "Characterization of Groundwater in the Cariri (Ceará, Brazil) By Environmental Isotopes and Electric Conductivity." Radiocarbon 39, no. 1 (1997): 49–59. http://dx.doi.org/10.1017/s0033822200040893.

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The Cariri region is the largest sedimentary basin in the state of Ceará, Brazil. Located in the southern portion of the state, it comprises the Araripe Plateau and the Cariri Valley on its northern foot. The region's groundwaters are being heavily exploited. Using electric conductivity (EC) and 18O, 14C and 3H data, we differentiate groundwaters from various origins. We identified three horizons of springs on the slope of the Plateau through their geologic environment and the EC of their waters. Groundwaters from wells in the Cariri Valley are classified according to the aquifers exploited as

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Feo, Alessandra, Andrea Zanini, Emma Petrella, Rebeca Hernàndez-Diaz, and Fulvio Celico. "Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis." Water 11, no. 11 (2019): 2311. http://dx.doi.org/10.3390/w11112311.

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We investigate the long-distance salinity in a dual permeability coastal karst aquifer with a double conduit network using a three-dimensional variable-density groundwater flow and multispecies transport SEAWAT model. Sensitivity analyses were used to evaluate the impact of the parameters and boundary conditions on the modeling saltwater wedge in a karstic aquifer situated in the Cuban land territory, including hydraulic conductivity, vertical anisotropy and salinity concentration; both in the conduits network and the fractured medium. These analyses indicated that hydraulic conductivity of th

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SATO, Tsutomu, Norio MATSUMOTO, Makoto TAKAHASHI, et al. "Observation of water level, temperature and electric conductivity of groundwater around Usu Volcano." BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN 52, no. 4-5 (2001): 143–48. http://dx.doi.org/10.9795/bullgsj.52.143.

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Lindell, Ismo V., Murat E. Ermutlu, Keijo I. Nikoskinen, and Esko H. Eloranta. "Static image principle for anisotropic‐conducting half‐space problems: PEC and PMC boundaries." GEOPHYSICS 58, no. 12 (1993): 1861–64. http://dx.doi.org/10.1190/1.1443401.

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The image principle for an isotropic half‐space bounded by perfect electric conductor (PEC) or perfect magnetic conductor (PMC) plane is presented in most elementary textbooks on electromagnetics. It is perhaps not so well known that this principle can also be generalized to anisotropic media in the static case, because it is not covered in leading monographs of geoelectromagnetics (Wait, 1982; Negi and Saraf, 1989; Eskola, 1992). The anisotropic image method can be applied to geologic media that exhibit anisotropic electrical conductivity caused by the fractures and fissures in the rock. Such

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Nicaise, Yalo, Descloitres Marc, Alassane Abdoukarim, Mama Daouda, and Boukari Moussa. "Environmental Geophysical Study of the Groundwater Mineralization in a Plot of the Cotonou Littoral Zone (South Benin)." International Journal of Geophysics 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/329827.

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Geophysical investigations comprising electrical resistivity and electromagnetic conductivities methods were deployed in a 350 m2sector, strewn with 11 wells. Within the framework of an environmental study on a small scale in the south of Benin, the water conductivity of these wells was measured to determine in a direct way mineralization of the coastal water table in the littoral zone. This environmental study aimed to prospect by the geophysical methods the space extension of the water table mineralization obtained by direct measurements of water conductivity in the well and the depth of the

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Ahnaf, Jemi S., Zufialdi Zakaria, and Aton Patonah. "Hydraulic and Groundwater Chemical Parameters of the Aquifer in Malakasari, Bandung." MATEC Web of Conferences 147 (2018): 03007. http://dx.doi.org/10.1051/matecconf/201814703007.

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In order to reveal the physical condition of the aquifer, the pumping test using Cooper-Jacob (1946) principle has conducted at well SM5. The observation data of the test then processed to generate various value of hydraulic properties i.e. 3.241x10-4 cm2/sec for transmissivity (T), 8.103x10-6 cm/sec for conductivity (K), 0.05055 for storativity (S), and 3.852x10-3 ft-1 for specific storage (Ss). These data show that the aquifer composed of unconsolidated sedimentary rocks ranged from coarse sand to silt. In addition, also performed the feasibility test of groundwater by using Multimeter which

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Christensen, N. K., S. Christensen, and T. P. A. Ferre. "A framework for testing the use of electric and electromagnetic data to reduce the prediction error of groundwater models." Hydrology and Earth System Sciences Discussions 12, no. 9 (2015): 9599–653. http://dx.doi.org/10.5194/hessd-12-9599-2015.

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Abstract. Despite geophysics is being used increasingly, it is still unclear how and when the integration of geophysical data improves the construction and predictive capability of groundwater models. Therefore, this paper presents a newly developed HYdrogeophysical TEst-Bench (HYTEB) which is a collection of geological, groundwater and geophysical modeling and inversion software wrapped to make a platform for generation and consideration of multi-modal data for objective hydrologic analysis. It is intentionally flexible to allow for simple or sophisticated treatments of geophysical responses,

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Alabi, A. A., O. I. Popoola, O. T. Olurin, et al. "Impact Assessment of Dumpsite Effect on Groundwater Quality Using Geophysical and Geochemical Techniques in Balogun Iwaya, Lagos Southwestern Nigeria." Journal of Solid Waste Technology and Management 47, no. 2 (2021): 225–34. http://dx.doi.org/10.5276/jswtm/2021.225.

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Waste disposal and management is a challenge in developing countries and has great influence on the groundwater quality. This research aimed at assessing the impact of leachate on nearby wells within the vicinity of active dumpsite in Yaba, Lagos, Nigeria. Four vertical electrical sounding and four electrical resistivity tomography using Schlumberger and Wenner electrode configurations respectively were carried out at the dumpsite. Physicochemical analysis of water samples from neighbouring wells were also conducted. The geo-electric curve showed four different subsurface layers. The electrica

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Dubreuil-Boisclair, Camille, Erwan Gloaguen, Denis Marcotte, and Bernard Giroux. "Heterogeneous aquifer characterization from ground-penetrating radar tomography and borehole hydrogeophysical data using nonlinear Bayesian simulations." GEOPHYSICS 76, no. 4 (2011): J13—J25. http://dx.doi.org/10.1190/1.3571273.

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It is known that the heterogeneity of hydraulic conductivity drives the groundwater flow and the transport of contaminants. However, in conventional characterization methods, the lack of densely sampled hydrological data does not permit us to describe the aquifer heterogeneity at an appropriate scale. In this study, we integrate ground-penetrating radar (GPR) tomographic data with hydraulic conductivity logs to estimate the hydraulic conductivity of a heterogeneous unconsolidated aquifer at a decimetric scale between two boreholes. The integration of these different data sets is achieved using

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R.A., T. Listyani, Nana Sulaksana, Boy Yoseph C.S.S.S.A., and Adjat Sudradjat. "Groundwater Flow Model In The Center Of West Progo Dome, Kaligesing, Purworejo, Central Java And Its Surrounding Area, Based On Hydrochemical And Isotopic Characteristics." Bulletin of the Geological Society of Malaysia 71 (May 31, 2021): 227–41. http://dx.doi.org/10.7186/bgsm71202118.

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Groundwater studies were carried out in the center of the West Progo Dome, at Kaligesing, Purworejo District, Central Java, and its surrounding area, with an emphasis on hydrochemical problems. As a water-scarce area, groundwater studies are urgently needed in this area. This research is intended as a hydrogeological study with the aim of knowing the conceptual groundwater flow model in the study area. The method used is a field hydrogeological survey as well as hydrochemical and natural isotope analysis supported by chemical and groundwater isotope data. Less clear hydrochemical evolution ind

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Qiu, Huili, Herong Gui, Lin Cui, Zhenggao Pan, and Biao Lu. "Hydrogeochemical characteristics and water quality assessment of shallow groundwater: a case study from Linhuan coal-mining district in northern Anhui Province, China." Water Supply 19, no. 5 (2019): 1572–78. http://dx.doi.org/10.2166/ws.2019.030.

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Abstract Major ion and trace element concentrations in shallow groundwater of Linhuan coal-mining district, Northern Anhui Province, China, were analyzed to determine its hydrogeochemical characteristics and to assess drinking and irrigation water quality. The relative abundance of cations and anions was Na+ &gt; Mg2+ &gt; Ca2+ &gt; K+, and HCO3− &gt; SO42− &gt; Cl− &gt; NO3−, respectively. The concentrations of Na+, HCO3−, NO3−, and total dissolved solids (TDS), and the electric conductivity (EC) values in some samples were higher than the permissible limits of the Wat

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Merz, C., and J. Steidl. "Data on geochemical and hydraulic properties of a characteristic confined/unconfined aquifer system of the younger Pleistocene in northeast Germany." Earth System Science Data 7, no. 1 (2015): 109–16. http://dx.doi.org/10.5194/essd-7-109-2015.

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Abstract. The paper presents a database of hydrochemical and hydraulic groundwater measurements of a younger Pleistocene multilayered, unconfined/confined aquifer system in NE Germany. The Institute of Landscape Hydrology of the Leibniz Centre for Agricultural Landscape Research (ZALF) operates seven groundwater monitoring wells in the Quillow catchment located in the Uckermark region (federal state of Brandenburg, Germany). From July 2000 to March 2014, water samples were collected periodically on different days of the year and at depths between 3 and 5 m (shallow wells) and 16 and 24 m (deep

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Merz, C., and J. Steidl. "Long-term geochemical and hydraulic measurements in a characteristic confined/unconfined aquifer system of the younger Pleistocene in northeast Germany." Earth System Science Data Discussions 8, no. 1 (2015): 113–25. http://dx.doi.org/10.5194/essdd-8-113-2015.

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Abstract. The paper presents a data base of hydrochemical and hydraulic groundwater measurements of a younger Pleistocene multilayered, unconfined/confined aquifer system in NE Germany. The Institute of Landscape Hydrology of the Leibniz Centre for Agricultural Landscape Research (ZALF) e. V. operates seven groundwater monitoring wells in the Quillow catchment located in the Uckermark region (Federal State of Brandenburg, Germany). From July 2000 to March 2014, water samples were collected periodically on different days of the year and at depths between 3 and 5 m (shallow wells) and 20 and 25

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Rees, Nigel, Graham Heinson, Lars Krieger, et al. "Magnetotelluric monitoring of coal seam gas depressurisation." APPEA Journal 55, no. 2 (2015): 466. http://dx.doi.org/10.1071/aj14101.

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The depressurisation of coal seam gas (CSG) formations causes in-situ fluids to migrate through pores and fractures in the earth. The removal of large volumes of water from coal seams has the potential to affect water table levels and groundwater flow in surrounding aquifer systems. Magnetotellurics (MT) is a passive electromagnetic technique that uses the natural fluctuations of electric and magnetic fields at the Earth’s surface to determine the Earth’s conductivity structure. The bulk movement of fluids during CSG depressurisation causes a conductivity change in the subsurface and this chan

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Nordine, Nouayti, Nouayti Abderrahime, Khattach Driss, Hilali Mohamed, and El khadrani Najib. "Characterization of the mineralization of the Groundwater in high Basin of Guir (Morocco) by geochemical and geostatistical." E3S Web of Conferences 150 (2020): 01003. http://dx.doi.org/10.1051/e3sconf/202015001003.

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Due to over-exploitation of water resources, the high basin of Guir posed an alarming risk of elimination in terms of quantity and quality. Therefore, this study intends to evaluate the physical and chemical quality of groundwater in the high Basin of Guir and to identify possible sources of pollution in order to map the quality of the Jurassic groundwater. During May 2018, thirty water points, distributed in the high basin of Guir, were sampled and analysed to determine concentrations of sevenchemical elements: K+, Na+, Ca++, Mg++, Cl-, HCO3-, SO4-. In addition, EC (Electric Conductivity), pH

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Matiatos, I., and A. Alexopoulos. "Analysis of temporal hydrochemical and isotopic variations in spring waters of Eastern Peloponnesus (Greece)." Bulletin of the Geological Society of Greece 47, no. 2 (2017): 750. http://dx.doi.org/10.12681/bgsg.11111.

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The temporal variation of groundwater hydrochemistry has been used to support observations on the nature of groundwater circulation inside geological terrains of various lithological formations in Eastern Peloponnesus. In the present study, variations in groundwater physical-chemical properties such as electric conductivity, CO2 partial pressure, and calcite saturation index were used to give indications with regard to the nature of the geological formation, the groundwater residence time, and the mode of water circulation inside the hydrogeological systems. Additional isotopic values (δ18Ο) w

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de Almeida, Andreia, Daiane Ferreira Maciel, Karen Félix Sousa, Carlos Tadeu Carvalho Nascimento, and Sérgio Koide. "Vertical Electrical Sounding (VES) for Estimation of Hydraulic Parameters in the Porous Aquifer." Water 13, no. 2 (2021): 170. http://dx.doi.org/10.3390/w13020170.

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Similarities in both water and electric current flows allow the relation of hydraulic and geoelectric parameters of porous aquifers. Based on this assumption and the importance of the hydraulic parameters for groundwater analyses, this study aimed to estimate hydraulic conductivity (K) and transmissivity (T) with vertical electrical sounding (VES) in the porous aquifer at the experimental farm of the University of Brasilia, Brazil. VES is a geophysical technique that provides electrical resistivity (ρ, Ω m) and thickness (h) of the subsurface layers. The ρ and h aquifer data, associated with l

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OHTOSHI, Kunio, Jun YASUMOTO, and Taku FUJIWARA. "Relation between the depth of saltwater/freshwater interface estimated by Wenne r method and the electric conductivity of groundwater." Journal of Groundwater Hydrology 48, no. 3 (2006): 169–81. http://dx.doi.org/10.5917/jagh1987.48.169.

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Martins, Lisa, Alcides Pereira, Alcino Oliveira, António Fernandes, Luís Filipe Sanches Fernandes, and Fernando António Leal Pacheco. "An Assessment of Groundwater Contamination Risk with Radon Based on Clustering and Structural Models." Water 11, no. 5 (2019): 1107. http://dx.doi.org/10.3390/w11051107.

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There is currently some controversy in the scientific community regarding the efficiency of the water–rock interaction process in the contamination of radon in groundwater. In this study, some difficulties were found in the sampling phase. Many of the water collection points are used for human consumption. As such, some municipalities did not want to collaborate. When this natural contaminant is undetectable to the human sense and may cause pulmonary neoplasms in the long term, it is difficult to obtain collaboration from the municipalities concerned. To overcome this controversy, it is import

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Crespo, Sebastián, Céline Lavergne, Francisco Fernandoy, Ariel Muñoz, Leandro Cara, and Simón Olfos-Vargas. "Where Does the Chilean Aconcagua River Come from? Use of Natural Tracers for Water Genesis Characterization in Glacial and Periglacial Environments." Water 12, no. 9 (2020): 2630. http://dx.doi.org/10.3390/w12092630.

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The Aconcagua river basin (Chile, 32 °S) has suffered the effects of the megadrought over the last decade. The severe snowfall deficiency drastically modified the water supply to the catchment headwaters. Despite the recognized snowmelt contribution to the basin, an unknown streamflow buffering effect is produced by glacial, periglacial and groundwater inputs, especially in dry periods. Hence, each type of water source was characterized and quantified for each season, through the combination of stable isotope and ionic analyses as natural water tracers. The δ18O and electric conductivity were

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Li, Wenliang, Qing Sun, Weiping Wang, Shisong Qu, Zhengxian Zhang, and Qiaoyi Xu. "Effective water quantity of multi-source water recharging aquifers in Yufuhe River based on groundwater and surface water semi-coupled modelling." Water Supply 19, no. 8 (2019): 2280–87. http://dx.doi.org/10.2166/ws.2019.109.

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Abstract With rapid urbanisation, a karst water recharge area of the Jinan spring catchment was damaged. Thus, managed aquifer recharge projects were built in the western Jinan spring catchment to protect the water supply of the spring. Yufuhe River was selected as the study area to compute the effective recharge rate into karst aquifers. This strong seepage zone has a large gradient and undergoes a specific hydrogeological condition in which two strata of a gravel layer and limestone change to three strata of gravel, impermeable clay shale and limestone at the open window of the karst aquifer

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Suleiman, Ahmad, Auwalu Ibrahim, and Usman Abdullahi. "Statistical Explanatory Assessment of Groundwater Quality in Gwale LGA, Kano State, Northwest Nigeria." Hydrospatial Analysis 4, no. 1 (2020): 1–13. http://dx.doi.org/10.21523/gcj3.2020040101.

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Groundwater is one of the significant sources of drinking water in the world. To protect groundwater quality for domestic consumption, it is important to undertake a periodic investigation of its quality to improve the healthy living of the ever-increasing population. In this paper, we have analyzed physical and chemical (physicochemical) concentration levels in groundwater samples collected from twenty-eight sampling locations during the raining season in Gwale, Northwest Nigeria. About fifteen physicochemical parameters such as electric conductivity (EC), turbidity (Turb), pH, temperature (T

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Lutenegger, Alan J., and Don J. DeGroot. "Techniques for sealing cone penetrometer holes." Canadian Geotechnical Journal 32, no. 5 (1995): 880–91. http://dx.doi.org/10.1139/t95-084.

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Direct penetration exploration tools such as the electric cone penetrometer (CPT) and piezocone (CPTU) are being increasingly used for site investigation studies to evaluate stratigraphy and obtain groundwater samples. Most of these techniques are considered full-displacement direct-push or direct-drive penetration methods which can leave open pathways that may allow the movement of surface or subsurface contaminants into uncontaminated layers. Sealing techniques are needed to protect groundwater conditions following the use of these types of exploration tools. A survey of industry techniques

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El Baghdadi, Mohamed, Radouane Medah, and Amal Jouider. "Using Statistical Analysis to Assess Urban Groundwater in Beni Mellal City (Morocco)." International Journal of Agronomy 2019 (July 1, 2019): 1–22. http://dx.doi.org/10.1155/2019/7469741.

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The study was carried out in a shallow phreatic aquifer in the piedmont zone between the Atlas Mountains and Tadla plain in Morocco. This study is carried out using physicochemical analyses with statistical analysis (CA and PCA) to show variability of groundwater hydrochemical parameters beneath Beni Mellal city in order to know spatial variability of water quality under urban activities. Total dissolved solid shows large variation from 355 mg/L to 918 mg/L with high values recorded, as electric conductivity, in the city center. High sulfate content is intercepted also in the old city center w

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Mohd Shahli, Fitryaliah, Siti Nazahiyah Rahmat, and Siti Nor Aishah Mohd Salleh. "Hydrochemical analysis and evaluation of heavy metals in groundwater: A case study." MATEC Web of Conferences 250 (2018): 06009. http://dx.doi.org/10.1051/matecconf/201825006009.

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The hydrochemical characteristics and the type of groundwater were identified in order to investigate the elements of major ions of groundwater samples in hydro-meteorology station located in Universiti Tun Hussien Onn Malaysia, UTHM. The objectives of the study were to measure the concentration of major ions and evaluate their chemical compositions . The measured ions were namely sodium (Na), magnesium (Mg), calcium (Ca), potassium (K), chloride (Cl), bicarbonate (HCO3), sulfate (SO4), heavy metals substance such as zinc (zn), ferum (Fe), copper (Cu), and manganese (Mn). Eight (8) groundwater

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Hermans, Thomas, Alexander Vandenbohede, Luc Lebbe, and Frédéric Nguyen. "A shallow geothermal experiment in a sandy aquifer monitored using electric resistivity tomography." GEOPHYSICS 77, no. 1 (2012): B11—B21. http://dx.doi.org/10.1190/geo2011-0199.1.

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Groundwater resources are increasingly used around the world for geothermal exploitation systems. To monitor such systems and to estimate their governing parameters, we rely mainly on borehole observations of the temperature field at a few locations. Bulk electric resistivity variations can bring important information on temperature changes in aquifers. We have used surface electric resistivity tomography to monitor spatially temperature variations in a sandy aquifer during a thermal injection test. Heated water (48°C) was injected for 70 hours at the rate of [Formula: see text] in a 10.5°C aq

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Bemmoussat, Abdelkader, Mohammed Adjim, and Fouzia Bensaoula. "Irrigation with treated wastewaters and the protection of Hennaya groundwater – Tlemcen, Algeria." Journal of Water and Land Development 43, no. 1 (2019): 19–27. http://dx.doi.org/10.2478/jwld-2019-0059.

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AbstractThe Henaya Irrigated Perimeter (HIP) is an agricultural area irrigated by treated wastewater (TWW) of Ain El Hout treatment plant. Various analyses have shown that i) this water has low concentration of heavy metals and toxic elements, ii) the average values of the physicochemical parameters for 136 samples are satisfactory (29.2 mg O2∙dm−3 for chemical oxygen demands – COD, 13.14 mg O2∙dm−3 for biological oxygen demands – BOD, 14.2 mg∙dm−3 of suspended matter – SM, 1.82 mg∙dm−3 of N-NO3, 7.7 for pH and 927.74 μS∙cm−1 for electric conductivity – EC). Thirdly, it contains a high number

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Yan, Yu Min, Xue Wang, and Mao Mao Hou. "Analysis of the Surface Soil EC Dynamics and the Economic Benefit under the Subsurface Drainage System." Applied Mechanics and Materials 275-277 (January 2013): 2821–26. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2821.

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Subsurface drainage was known as an effective method to solve salinity problems, in this paper, two different subsurface drainage systems were designed to study how the system affect the surface soil EC(electric conductivity), besides, the economic benefits of the system were evaluated. Results showed that: under the drainage system, the surface soil EC was in a trend of fluctuant reduction, the desalination ratio of T1.1, T1.2, T2.1, T2.2 and CK was 13.5%, 11.2%, 14.8%, 12.6%, and 6.0% respectively; the surface soil EC would present an rising trend in an irrigation cycle on account of the eva

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AZECHI, Issaku, Tetsuo NKAYA, Hajime TANJI, and Hirohide KIRI. "Studies of Effects of Irrigation and Drainage on Seawater Intrusion -Investigation of Groundwater Electric Conductivity before and after the Great East Japan Earthquake-." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70, no. 2 (2014): I_1226—I_1230. http://dx.doi.org/10.2208/kaigan.70.i_1226.

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Rittgers, J. B., A. Revil, M. Karaoulis, M. A. Mooney, L. D. Slater, and E. A. Atekwana. "Self-potential signals generated by the corrosion of buried metallic objects with application to contaminant plumes." GEOPHYSICS 78, no. 5 (2013): EN65—EN82. http://dx.doi.org/10.1190/geo2013-0033.1.

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Large-amplitude ([Formula: see text]) negative electric (self)-potential anomalies are often observed in the vicinity of buried metallic objects and ore bodies or over groundwater plumes associated with organic contaminants. To explain the physical and chemical mechanisms that generate such electrical signals, a controlled laboratory experiment was carried out involving two metallic cylinders buried with vertical and horizontal orientations and centered through and in the capillary fringe within a sandbox. The 2D and 3D self-potential (SP) data were collected at several time steps along with c

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Noreen, Mubarra, and Isma Younes. "Appraisal of Water Quality Measurements for Canal and Tube Well Water Systems for Agriculture Irrigation in Rechna Doab, Pakistan." International Journal of Economic and Environmental Geology 12, no. 1 (2021): 60–66. http://dx.doi.org/10.46660/ijeeg.vol12.iss1.2021.563.

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The present study was an attempt to assess the surface and ground water quality for irrigation suitability in Rechna Doab. Irrigation water quality at canals and tube well water were analyzed by physicochemical parameters including pH, Electric Conductivity (EC), important cations such as Calcium (Ca2+) Magnesium (Mg2+), Potassium (K+), Sodium (Na+), important anions such as Chloride (Cl-), Bicarbonate (HCO3-), Sulphate (SO42-), three heavy metals including Zinc (Zn), Nickel (Ni) and Copper (Cu). Twelve water samples were collected from the main canals (Lower Gogera canal, Jhang branch canal a

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Kovačević, Srđan, Marina Radišić, David Mitrinović, Predrag Vojt, and Nevena Živančev. "Tracer test and behavior of selected pharmaceuticals." Water Supply 17, no. 4 (2016): 1043–52. http://dx.doi.org/10.2166/ws.2016.202.

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Study of the behavior and transport of pharmaceuticals in groundwater is significant for understanding the processes of natural attenuation and potential use of filtration through the aquifer to evaluate the most effective way to remove pharmaceuticals that occur under anthropogenic influence. This paper presents the results of a field experiment at the location of the drainage system of Kovin-Dubovac in Serbia, during which a tracer test was conducted and the behavior of selected pharmaceuticals (trimethoprim, carbamazepine, diclofenac and metamizole metabolite N-acetyl-4-aminoantipyrine (4–A

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Greenhouse, J. P., and P. F. Karrow. "Geological and geophysical studies of buried valleys and their fills near Elora and Rockwood, Ontario." Canadian Journal of Earth Sciences 31, no. 12 (1994): 1838–48. http://dx.doi.org/10.1139/e94-163.

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Buried bedrock valleys are of economic interest for groundwater and engineering studies, and of scientific interest for the sedimentary sequences they may contain. Two buried valleys, about 60 m deep, north and northeast of Guelph, Ontario, are tributary to the major Dundas Valley southwest of Guelph. Located initially from water well data, their locations and geometry were refined with surface geophysics, including very low frequency resistivity, terrain conductivity, resistivity, transient electromagnetic, gravity, and seismic methods. Useful data are obtained roughly in proportion to cost.

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Mahmood, Khalid, and Muhammad Asim. "Appraisal of Drinking Water Quality in Lahore Residence, Pakistan." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 60, no. 1 (2017): 34–41. http://dx.doi.org/10.52763/pjsir.phys.sci.60.1.2017.34.41.

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A comprehensive study for the spatial distribution of drinking water quality had been conductedfor residential area of Lahore, Pakistan. The study had made use of the geographic information system(GIS) for geographical representation and spatial analysis of groundwater quality. Physicochemicalparameters including electric conductivity, pH, TDS, Cl, Mg, Ca, alkalinity and bicarbonates from 73 ofthe water samples had been included in the analysis. Water quality data had been geo-referenced followedby its interpolation using inverse distance weighted (IDW) for each of the parameters. Very high al

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Sam-Uroupa, R. E., and E. A. Ogbeibu. "IMPACT OF SOLID WASTE DUMP-SITES ON GROUNDWATER QUALITY IN BENIN CITY, NIGERIA." African Journal of Health, Safety and Environment 1, no. 1 (2020): 38–63. http://dx.doi.org/10.52417/ajhse.v1i1.32.

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Municipal waste dumpsites contain pollutants which are either water-solution or are capable of being moved along the path of water during percolation through the soil to groundwater. This study was therefore carried out to investigate the impact of solid waste dump-sites in Benin City on the receiving groundwater quality. Four stations were chosen for this study, with each station located within one Local Government Area. These stations were dump-sites at Ikhueniro (station 1), Costain (station 2) and Ugbioyoko (station 3). Omaghe (station 4) was used as the control station without waste dumps

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Nouzha, Bouderka, Souid Ahmed Kacem, Lakhili Ferdaouss, Lahrach Abrerrahim, and Benabdelhadi Mohammed. "Evaluation De L’impact De La Pollution Agricole Sur La Qualite Des Eaux Souterraines De La Nappe Du Gharb." European Scientific Journal, ESJ 12, no. 11 (2016): 509. http://dx.doi.org/10.19044/esj.2016.v12n11p509.

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The Gharb plain is located in the North West of Morocco and corresponds to a vast plain of the Sebou watershed. It includes an irrigable perimeter of a 250,000 ha, of which more than 120,000 ha are designed as big hydraulics to meet the drinking water and irrigation needs of the region. The intensification of agriculture in this region leads to a significant use of phytosanitary products, which can impact the physico-chemical quality of the Gharb groundwater. To assess this quality we proceeded to the analysis of the physico-chemical parameters (pH, electric conductivity, dissolved oxygen, chl

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Hoque, A., MA Hossen, MF Islam, and MIU Mahmud. "Seasonal variation of salinity of ground water at Patenga area of Chittagong district in Bangladesh." Progressive Agriculture 30 (May 29, 2019): 65–70. http://dx.doi.org/10.3329/pa.v30i0.41559.

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Availability of safe drinking water is scarce in the coastal areas of Bangladesh due to saltwater intrusion in fresh water aquifer. Patenga, a densely populated coastal area within Chittagong city corporation area, is not under the municipal water supply coverage. The groundwater of Patenga is contaminated by higher concentration of chloride and total dissolved solid. This study aims to investigate the water quality of the tube well based on its distance from flood protection embankment to observed saltwater intrusion in fresh water aquifer. Water sample were collected several times from diffe

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Almeida, Ghislaine M. de, and Gerson Cardoso da Silva Junior. "Fatores hidrogeológicos no estudo da intrusão salina em aqüíferos costeiros da região litorânea do município de Maricá - RJ." Anuário do Instituto de Geociências 30, no. 2 (2007): 104–17. http://dx.doi.org/10.11137/2007_2_104-117.

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The oceanic area of Maricá, in the east coast of the Rio de Janeiro State, relies on groundwater as its main source of fresh water supply along with the use of water tank trucks. With the increasing demand of water resources, water supply and contamination problems are foreseen, and sea water intrusion phenomenon is also expected in these aquifers. The groundwater resource of the target area has been submitted to quality degradation due to the advance of the saline wedge, the excess of pumping without control and also the pollution of organic origin. Considering this situation, the study aims

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YANG, Heejun, Jun SHIMADA, Hiroki MATSUDA, Makoto KAGABU, and Linyao DONG. "Evaluation of a freshwater lens configuration using a time series analysis of a groundwater level and an electric conductivity in Minami-daito Island, Okinawa Prefecture, Japan." Journal of Groundwater Hydrology 57, no. 2 (2015): 187–205. http://dx.doi.org/10.5917/jagh.57.187.

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Matsuura, Takuya, Taichi Tebakari, Ayano Oda, and Akira Ueda. "Flow characteristics of artesian groundwater in coastal area of Kurobe River basin, Toyama Prefecture, by long-term and spatial observation of water temperature and electric conductivity." Groundwater for Sustainable Development 13 (May 2021): 100555. http://dx.doi.org/10.1016/j.gsd.2021.100555.

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Idehen, Osabuohien. "GEOPHYSICAL AND WATER QUALITY INDEX SURVEYS OF GROUNDWATER QUALITY AROUND UGBOR DUMPSITE IN BENIN CITY, EDO STATE, NIGERIA, WEST AFRICA." JOURNAL OF ADVANCES IN PHYSICS 12, no. 3 (2016): 4383–93. http://dx.doi.org/10.24297/jap.v12i3.43.

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This study takes a look into groundwater quality at Ugbor Dumpsite area using water quality index (WQI), 2-Dimensional (2-D) geophysical resistivity tomography and vertical electric sounding (VES).The geophysical resistivity methods employed revealed the depth to aquifer, the geoelectric layers being made up of lateritic topsoil, clayed sand and sand. Along the trasverse line in the third geoelectric layer of lateral distance of 76 m to 100 m is a very low resistivity of 0.9 to 13 m from a depth range o f about 3 to 25 m beneath the surface- indicating contamination. Water samples were collect

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Günther, T., and M. Müller-Petke. "Hydraulic properties at the North Sea island of Borkum derived from joint inversion of magnetic resonance and electrical resistivity soundings." Hydrology and Earth System Sciences 16, no. 9 (2012): 3279–91. http://dx.doi.org/10.5194/hess-16-3279-2012.

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Abstract. For reliably predicting the impact of climate changes on salt/freshwater systems below barrier islands, a long-term hydraulic modelling is inevitable. As input we need the parameters porosity, salinity and hydraulic conductivity at the catchment scale, preferably non-invasively acquired with geophysical methods. We present a methodology to retrieve the searched parameters and a lithological interpretation by the joint analysis of magnetic resonance soundings (MRS) and vertical electric soundings (VES). Both data sets are jointly inverted for resistivity, water content and decay time

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Mireille, Kapso Tchouankep, Ajeagah Gideon Aghaindum, Nkeng George Elambo, and Ngassam Pierre. "Bio-characterization of Some Free Living Amoebae in the Surface Water of the City of Yaounde: Relationship to Physico-chemical Parameters of the Medium." Journal of Applied Biotechnology 6, no. 1 (2018): 26. http://dx.doi.org/10.5296/jab.v6i1.12605.

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A study was carried in Yaounde to evaluate the level of organic pollution in the surface water and to determine the distribution of pathogenic free living amoeba in the aquatic ecosystem. Six points were selected on the Olezoa and the Abiergue streams of Yaounde for our study. Physico-chemical pollution was carried out by standard methods of assessment. The parameters measured were suspended solids, electric conductivity, pH, TDS, Oxydability, BOD5, COD, humidity, Dissolved Oxygen. The free living amoeba were identified by direct observation on microscope and observation after culture on Non N

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Doetsch, Joseph, Gianluca Fiandaca, Esben Auken, Anders Vest Christiansen, Aaron Graham Cahill, and Rasmus Jakobsen. "Field-scale time-domain spectral induced polarization monitoring of geochemical changes induced by injected CO2 in a shallow aquifer." GEOPHYSICS 80, no. 2 (2015): WA113—WA126. http://dx.doi.org/10.1190/geo2014-0315.1.

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Contamination of potable groundwater by leaking [Formula: see text] is a potential risk of carbon sequestration. With the help of a field experiment, we investigated whether surface monitoring of direct current (DC) electric resistivity and induced polarization (IP) could detect geochemical changes induced by [Formula: see text] in a shallow aquifer. For this purpose, we injected [Formula: see text] at depths of 5 and 10 m and monitored its migration using 320 electrodes on a [Formula: see text] surface grid. Measured resistances and IP decay curves found a clear signal associated with the inj

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Reddy, R. Mallikarjuna, Srikanth A, Sofia Kouser, et al. "Pharmacological Evaluation of the Impact of Fluoride-Contaminated Drinking Water on Brain Cognitive Function and Bone Health in Nalgonda and Warangal Rural Districts of Telangana in India." International Journal of Pharmaceutical Sciences and Nanotechnology 13, no. 4 (2020): 5036–46. http://dx.doi.org/10.37285/ijpsn.2020.13.4.10.

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A systematic groundwater analysis was carried out in six villages of Narsampet in Warangal district and two villages of Narketpally in Nalgonda district of Telangana in India. These water samples were collected from respective areas and evaluated under four different categories viz. physico-chemical parameters (such as pH, Electric Conductivity (EC), Total Dissolved Solids (TDS), Turbidity, Alkalinity, Hardness, Chloride, Nitrates, Sulphates, Fluoride, Iron content) as per standard methods, behavioral changes i.e. measurement of learning and memory ability of rats (Rectangular maze, Morris wat

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