نتایج جستجو برای: groundwater conditions

تعداد نتایج: 872578  

2008
Hilmar Hofmann Kay Knöller Dieter Lessmann

In the present study, the stable isotopes υ18O and υ2H were used for assessment of the water balance in a heterogeneously structured catchment area in the Lusatian Lignite Mining District, in particular, for estimation of the annual groundwater inflow and outflow (IGW and OGW) of Mining Lake Plessa 117. The application of stable isotopes was possible since the water exchange in the catchment ar...

2013
D. DERMATAS I. PANAGIOTAKIS C. VATSERIS A. XENIDIS N. PAPASIOPI T. MPOURAS E. THEOLOGOU K. VAXEVANIDOU M. CHRYSOCHOOU

High levels of hexavalent chromium (Cr(VI)) in groundwater are typically attributed to anthropogenic sources. However, scientific reports over the last decade have demonstrated that relatively high levels of Cr(VI) in groundwater may also be due to natural processes. Cr(VI) is among the most significant groundwater contaminants, since it is a potential carcinogenic compound that is commonly fou...

Journal: :Environmental science & technology 2016
Simon C Parkinson Ned Djilali Volker Krey Oliver Fricko Nils Johnson Zarrar Khan Khaled Sedraoui Abdulrahman H Almasoud

Balancing groundwater depletion, socioeconomic development and food security in Saudi Arabia will require policy that promotes expansion of unconventional freshwater supply options, such as wastewater recycling and desalination. As these processes consume more electricity than conventional freshwater supply technologies, Saudi Arabia's electricity system is vulnerable to groundwater conservatio...

Journal: :international journal of environmental research 2010
praveena s. m . m.h. abdullah z. aris

freshwater lens on small islands may easily be overexploited or polluted due to overdrafts of fresh water by pumping which causes drawdown of the water table a rise or up-coning of the saltwater interface. present study is concerned with using a three-dimensional finite-difference numerical model to simulate the groundwater flow and transport model to predict the behavior of groundwater system ...

2017
Susanne A. Benz Peter Bayer Gerfried Winkler Philipp Blum

8 Climate change is one if not the most pressing challenge modern society faces. Increasing temperatures are observed 9 all over the planet and the impact of climate change on the hydrogeological cycle has long been shown. However, so 10 far we have insufficient knowledge on the influence of atmospheric warming on shallow groundwater temperatures. 11 While some studies analyse the implication c...

2006
Kevin Crossley Yarrow Nelson

M-24, in: Bruce M. Sass (Conference Chair), Remediation of Chlorinated and Recalcitrant Compounds—2006. Proceedings of the Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds (Monterey, CA; May 2006). ISBN 1-57477-157-4, published by Battelle Press, Columbus, OH, www.battelle.org/bookstore. Biodegradation of Hydrocarbons Assisted by Arroyo Willows in Controll...

Hossein Samadi Boroujeni , Rohollah Fatahi Nafchi , Sayed Aliasghar Hashemi ,

Introduction: Studying the changes in surface water storage and exchanges with groundwater in the hydrological system of rivers is a prerequisite for water resources management in the basin. In this paper, Zayandehrood River has been studied and the historical series of flow has been used in six hydrographic stations located downstream the Zayandehrood Dam. Materials and Methods: Based on the ...

2016
Lixue Wang Xueyan Ye Hongyan Li

Abstract: The Second Songhua River is the biggest river system in Jilin Province, China. In recent years, the rapid economic development in this area has increased the prominence of water resources and water-related environmental problems; these include surface water pollution and the overexploitation of groundwater resources. Bank infiltration on the floodplains of the Second Songhua River is ...

2008
Gilles Rivard Richard Frenette Mikhael Bolgov

The City ofRostov the Great (Rostov) is one of the oldest cities in the Russian Federation. Many buildings need to be restored due to advanced degradation of the wooden and stone foundations. This degradation and other environmental problems are in large part caused by high groundwater levels, which are in turn directly associated with human activity over the years. Technical analyses were comp...

2006
NADAV AHARONSON

The objectives of this review are to summarize existing information on the occurrence of pesticides In groundwater and processes resulting in their detection; to identify existing technologies, and to describe missing information needed to make assessments arid predictions. Validated data on the occurrence of pesticides in groundwater are still limited. Pesticides can reach groundwater followin...

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