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Laboratory assessment of permeability of a groundwater protective barrier

100%

Lipinski M. J., Koda E., Wdowska M. K.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2007

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nr 38

69-79

Laboratory assessment of permeability of a groundwater protective barrier. The paper presents results of laboratory assessment of permeability of cement-bentonite self hardening mixtures which have recently been the most often used for construction of cut–off walls mitigating hazard of sanitary landfi lls. Laboratory tests were carried out on reconstituted and natural (undisturbed) material of the barrier. Due to the fact that actual permeability characteristics of reconstituted material are time and density dependent, changes of permeability are described against those variables. Comparison of these data with test results obtained for undisturbed material help to understand the process of changing properties of the barrier in the environment.

2

Elimination of manganese from groundwater by rapid sand filtration

100%

Olanczuk-Neyman K., Bray R.

Archiwum Ochrony Środowiska

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1998

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tom 24

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nr 3

3

TLM method and SGi index as an indicator of groundwater drought

88%

Kubicz J.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2018

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tom 17

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nr 1

Previous studies of drought in Poland practically neglected the aspect of groundwater shortage, focusing on atmospheric, agricultural and hydrological drought. Therefore, the aim of this work was groundwater drought analysis in selected sites of South-Western Poland, based on the analytical methods used in other European countries. The intermediate objective was to assess the possibility of using the TLM method and the SGI for monitoring groundwater drought based on data from the National Geological Institute – National Research Institute. Investigations demonstrated that both methods gave results that complemented existing information on droughts in Poland in the last 30 years. Studies show that in the 1990s there was groundwater drought, not only atmospheric and agricultural drought described by Bąk and Łabędzki (2002), Bobiński, Meyer (1992, 1992), Bartczak (2014).

4

Desalination of groundwater and impoundments using nano-zero valent iron, n-Fe0

88%

Antia D. D. J.

Meteorology Hydrology and Water Management. Research and Operational Applications

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2015

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tom 03

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nr 1

Salinization of groundwater is a major problem, particularly in areas with limited infrastructure. 14 diffusion reactors are operated diabatically at -8°C to 20°C to determine the amount of NaCl removed by n-Fe0. The reactors establish NaCl removal by Fe0: (i) 44,000-77,000 nm particle size (PS) = 0.0675-0.1925 g L-1 [feed water (FW) = 0.89 g L-1]; (ii) 50 nm PS = 0.953-1.14 g L-1 [FW = 1.095-1.19 g L-1]; (iii) 50 nm PS under nitrogen saturation (0.1- 0.2 MPa) = 9.693 g L-1 [FW = 10 g L-1]; (iv) <0.01 g 50 nm PS L-1 under nitrogen saturation (0.1-0.2 MPa) = 1.564 g L-1 [FW = 4 g L-1]; (v) 50 nm PS modified by nitrogen saturation (PSN) = 5.52 g L-1 [FW = 6.89 g L-1]. Desalination commences at a time, t, after the n-Fe0 is added to the water, and continues with an exponential decline until a base (equilibrium) salinity is reached. The effectiveness of n-Fe0 as a desalination agent appears to increase with increased water salinity. Placement of PSN in an existing impoundment, or aquifer, may provide a cost effective, zero energy, partial desalination solution, which can be used to support emergency relief, agriculture and extractive industries.

5

Groundwater quality of Turkmen Mountain, Turkey

88%

Tokatli C., Kose E., Cicek A.

Polish Journal of Environmental Studies

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2013

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tom 22

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nr 4

This study was carried out to determine the groundwater quality of Türkmen Mountain, which provides drinking water to about 250,000 people, and to evaluate the water quality by using some multivariate statistical techniques. In this study, groundwater samples were collected from 18 stations on Türkmen Mountain in summer 2011. Some lymnological parameters and element levels in groundwater of the mountain were determined. Factor analysis (FA), cluster analysis (CA), and Pearson Correlation Index were applied to the results in order to estimate the data properly. The ArcGIS package program was used to make distribution maps of arsenic, boron, and total phosphorus (which were detected as the most critical parameters of the mountain) in order to provide visual summaries of element accumulations. Also, water samples were evaluated according to the criteria of SKKY (water pollution control regulation in Turkey) and evaluated as drinking water according to the criteria of TS266 (Turkish Standards Institute), the EC (European Communities), and WHO (World Health Organization). It was determined that arsenic accumulations of some stations exceeded the limit values specified by TS266, WHO, and the EC. Significant positive correlations were determined between arsenic and boron levels (p<0.01), and according to the FA results, the “Boron Works Factor,” which was strongly positive related to the variables of arsenic and boron, was identified as the most effective component for Türkmen Mountain (25.88% of total variance). As a result, in addition to the geological structure of the mountain, mining activities and mineral recovery processes are significant effective factors of groundwater quality of Türkmen Mountain.

6

Permeability coefficient tests in non-cohesive soils

88%

Wrzesinski G.

Przegląd Naukowy. Inżynieria i Kształtowanie Środowiska

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2020

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tom 29

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nr 1[87]

7

Impact of climate change on the Figuig aquifer using a numerical model: Oasis of Eastern Morocco

88%

Jilali A.

Journal of Biology and Earth Sciences

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2014

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tom 04

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nr 1

8

Development of water well with circulating treatment

88%

Kayastha K.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2016

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tom 16

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nr 4

9

Modélisation numérique spatiale d'écoulement de l'eau souterraine sur le périmètre alimenté par l'infiltration

88%

Krol P.

Annals of Warsaw Agricultural University. Land Reclamation

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2004

|

tom 35a

10

The optimization of hydraulic protection of groundwater

88%

Derco J., Kralik M., Bodik I., Farkas J.

Polish Journal of Environmental Studies

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1992

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tom 01

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nr 2

A general algorithm of hydraulic protection of groundwater (HPGW) control based on the checking of the maximal closed groundwater contour is proposed. A model describing only flow of groundwater (not spreading of contaminants) is used and therefore short computational time is sufficient to simulate various operational regimes of HPGW. Groundwater flow is described by a twodimensional two-parameters model with 'real time' generation of boundary conditions. Operation of HPGW is determined on the prediction of HPGW behaviour for 2-3 weeks forward. Results obtained using the developed algorithm are illustrated on a real HPGW operating at the 'Žitný Ostrov' in Slovakia. The usage of the proposed algorithm has made it possible to shorten total groundwater pumping to two thirds of the original value.

11

Impact of sewage sludge land application on groundwater's quality

75%

Gontaszewska A., Krainski A.

Zeszyty Naukowe Uniwersytetu Zielonogórskiego. Inżynieria Środowiska

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2004

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nr 12[131]

12

Changes of the concentrations of dissolved chemical compounds migrating into ground water through biogeochemical barriers in an agricultural landscape

75%

Szajdak L., Zyczynska-Baloniak I., Jaskulska R., Szczepanski M.

Oceanological and Hydrobiological Studies

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2009

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tom 38

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nr 4

109-116

13

Sulphate-reducing bacteria, their properties and methods of elimination from groundwater

75%

Wargin A., Olanczuk-Neyman K., Skucha M.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 4

639-644

In the Gdańsk region urban development and intensive take off have caused an increase in water exploitation. As a consequence of the changes of hydrogeological conditions, a deterioration of chemical and bacteriological quality of water has been observed. Routine bacteriological quality control does not include some specific bacteria which are characteristic for the groundwater environment and can have negative influence on the physical and chemical properties of water. Among such bacteria there are sulphate-reducing bacteria (SRB). In the paper frequency of SRB occurrence in raw water from Cretaceous and Quaternary formations and in treated water has been described. It has been proved that bacterial consortium isolated from groundwater show preference to sodium lactate as a main source of carbon and energy. SRB have a negative influence on organoleptic properties of water quality and the technical condition of distribution net, the water should be disinfected. It has been proved that non-reagent methods, like UV radiation and microfiltration, are effective for SRB elimination from groundwater.

14

Dissolvable organic carbon in groundwater as an indicator of its contamination as a result of many years of on-ground storage of manure

75%

Urbaniak M., Pietrzak S.

Polish Journal of Agronomy

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2011

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nr 04

15

The application of nanoscale materials in groundwater remediation

75%

Matlochova A., Placha D., Rapantova N.

Polish Journal of Environmental Studies

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2013

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tom 22

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nr 5

This review article summarizes the current situation in the application of nanotechnology to contaminated site remediation. Many types of nanomaterials and nanoparticles have been produced since their discovery. As remediation tools, carbon-based nanomaterial (CNM) sorbents and nanoparticles of zero-valent iron (nZVI) are at the forefront of scientific interest. The most often used CNM sorbents are multiwalled and singlewalled carbon nanotubes (MWCNTs and SWCNTs), which are only examined under laboratory conditions. nZVI has already been applied to real contaminated sites as an in situ technology through direct injection into aquifers. CNM sorbents can remove both organic contaminants – aliphatic and mono and polycyclic aromatic hydrocarbons and their derivatives, plus inorganic contaminants – such as divalent metal ions (Cd²⁺, Pb²⁺, Zn²⁺, Ni²⁺, Cu²⁺) from polluted water. Zero-valent iron nanoparticles have been used for the removal of TCE, VOC, nitrates, and uranium. This review shows that these nanomaterials are a promising solution in the field of groundwater remediation, but there are also many unanswered questions regarding the environmental risks of nanoscale materials, which are outlined as well.

16

Physico-chemical groundwater conditions at Salix lapponum stands in Eastern Poland

75%

Serafin A., Pogorzelec M., Banach B., Szczurowska A., Mielniczuk J.

Dendrobiology

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2015

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tom 73

A subarctic-boreal relict species, Salix lapponum, found within the area of the Łęczna-Włodawa Lakeland (Eastern Poland), is particularly threatened with extinction due to the southern limit of its range and the specific conditions of its occurrence. This conclusion is evidenced by a systematic reduction in the number of its locations, which is accompanied by a decrease in the numbers of individuals making up its populations. The aim of the present study was to determine habitat conditions of the occurrence of Salix lapponum populations on the basis of an analysis of physico-chemical factors of groundwater at the sites associated with various stages of succession taking place in small peatland water bodies. The results of this study confirm the trend that the stands and population numbers of this species are decreasing with the intensification of ecological succession and the degree of its progress and at the same time show that this species exhibits a wide amplitude of many of the investigated factors. Among the groundwater parameters under investigation, the low level of total nitrogen, phosphorus fraction and DOC as well as the high level of Ca, pH and electrolytic conductivity can be considered to be a set of conditions that promote the maintenance of Salix lapponum populations. On the other hand, in the case of nitrates, nitrites, sulphates as well as the Na, K and Mg ions, the Kruskal-Wallis statistical test showed that the distribution of their values was invariant in relation to the studied habitats, which is probably evidence that they do not determine the development or extinction of the investigated populations in these habitats.

17

Groundwater arsenic contamination in West Bengal: current scenario, effects and probable ways of mitigation

75%

Dey T. K., Banerjee P., Bakshi M., Kar A., Ghosh S.

International Letters of Natural Sciences

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2014

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tom 08

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nr 1

During the past two decades, Arsenic (As) contamination via groundwater has become a serious issue worldwide and is now a major concern in the Indo-Bangladesh Gangetic delta. Arsenic enters human body through contaminated groundwater consumed as drinking water. Food safety in this region is also facing severe consequences as bio-accumulation of Arsenic is occurring in food crops irrigated with As-contaminated water. Chronic exposure to Arsenic can cause not only cancerous and non-cancer health effects. Reports suggest that about 20 % population in West Bengal is highly affected. Various techniques are being introduced to provide arsenic-free drinking water at an affordable cost. But a rigorous change in habit and mind set for procuring safe drinking water in those surviving in As-contaminated zones is the most essential step towards curbing the fatal consequences of As exposure. Harvesting rain water and utilization of proper purification techniques can be considered a possible alternative of safe drinking water.

18

Interaction between surface water and groundwater

75%

Skalova J., Klementova E.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Inżynieria Środowiska

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2001

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tom 21

The paper presents the changes of groundwater table on the low section of the Hron river in Tlmače-Kálna area. The data used for analyses of ground water level and for the determination of the relationships between groundwater level and precipitation and between groundwater level and water level in the Hron river were collected in 1963-1997 from the sensing heads of Slovak Hydrometeorology Institute (SHI) situated along the Hron River in this area.

19

The microbiological and physico-chemical quality of groundwater in West Thrace, Turkey

75%

Aydin A.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 3

377-383

The aim of this study was to undertake a preliminary assessment of the groundwater quality of the West Thrace region. Forty groundwater samples collected from Edirne (Site 1) and Canakkale (Site 2) were assessed for their suitability for human consumption. Eight water samples (20%) had heterotropic plate counts exceeding the EU and Turkish Water Directive limit of 20 cfu/ml in drinking water and the maximum number of bacteria recorded as 44 cfu/ml. Total coliforms, thermotolerant coliforms, E. coli, Enterococcus spp., Salmonella sp., Staphylococcus spp. and Pseudomonas aeruginosa were detected in 25%, 17.5%, 15%, 47.5%, 15%, 27.5% and 15% of the groundwater samples, respectively. Eleven (27.5%) samples exceeded the EU Water Directive value of 50 mg/l for nitrate, but 13 (32.5%) samples violated the Turkish standard of 45 mg/l nitrate in drinking water. pH values of all samples were between 5.5-8.5 limits. Conductivity of all samples were below Turkish and EU Water Directive levels. Five samples (12.5%) exceeded the Turkish Water Directive for total dissolved solids (TDS) in water.

20

The origin of humic substances and their role in the aquatic environment

75%

Szpakowska B.

International Journal of Ecohydrology and Hydrobiology

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2003

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tom 03

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nr 2

165-172

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