نتایج جستجو برای: groundwater chemistry

تعداد نتایج: 135748  

Journal: :Journal of Chemistry 2021

Groundwater in confined aquifers is the preferred water resource worldwide, and its hydrochemical quality premise for sustainable development. A systematic hydrogeochemical research was conducted to get insight into characteristics, genesis, potential health threats of groundwater, based on analytical data 45 groundwater samples collected from urban area Hengshui, Central North China Plain (NCP...

2015
Adebola A. Adeyi

ISSN: 2410-9649 Majolagbe et al / Chemistry International 2(4) (2016) 232-241 iscientic.org. 233 www.bosaljournals/chemint/ [email protected] in the area and /or the cost implications of digging a very deep well. Thus, groundwater can be easily susceptible to infiltration from dumpsites, septic tanks and other anthropogenic activities. Approximately, one fifth of the world total freshw...

2018
Gilian Schout Niels Hartog S. Majid Hassanizadeh Jasper Griffioen

Blowouts present a small but genuine risk when drilling into the deep subsurface and can have an immediate and significant impact on the surrounding environment. Nevertheless, studies that document their long-term impact are scarce. In 1965, a catastrophic underground blowout occurred during the drilling of a gas well in The Netherlands, which led to the uncontrolled release of large amounts of...

2013
James P. R. Sorensen Louise Maurice François K. Edwards Daniel J. Lapworth Daniel S. Read Debbie Allen Andrew S. Butcher Lindsay K. Newbold Barry R. Townsend Peter J. Williams

Groundwater ecosystems remain poorly understood yet may provide ecosystem services, make a unique contribution to biodiversity and contain useful bio-indicators of water quality. Little is known about ecosystem variability, the distribution of invertebrates within aquifers, or how representative boreholes are of aquifers. We addressed these issues using borehole imaging and single borehole dilu...

2010
JERZY JANKOWSKI

Water quality along the Waratah Rivulet in the Woronora Lake Catchment, New South Wales (NSW), Australia, has been monitored during the last three years by the Sydney Catchment Authority. Water quality data shows changes in chemical composition due to cracking of streambeds and rockbars, and diversion of surface water into subsurface routes in the Hawkesbury Sandstone aquifer. Water quality ups...

2008
Tamara K. Harms Nancy B. Grimm

[1] Riparian ecosystems are characterized by spatial and temporal heterogeneity in physical and biological attributes, with consequences for nutrient cycling. We investigated the responses of carbon (C) and nitrogen (N) cycling processes to the hydrogeomorphic template in the riparian zone of the San Pedro River, Arizona, a large (catchment area !11,500 km), free-flowing, semiarid river. Over a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده کشاورزی 1390

آب های زیرزمینی همواره به عنوان یکی از منابع مهم و عمده تامین آب شرب و کشاورزی به ویژه در مناطق خشک و نیمه خشک مطرح بوده است. دشت بیرجند نیز با قرار گرفتن در منطقه خشک، استفاده از آب-های زیرزمینی را به عنوان مهمترین و در عین حال تنها منبع تولید آب شیرین در پیش رو دارد. در همین زمینه پیش بینی نوسانات سطح آب زیرزمینی می تواند کمک شایانی به برنامه ریزی و تصمیم گیری های بعدی جهت تامین درازمدت آب شر...

Journal: :Engineering Geology 2021

Clay buffer is a key component of the engineered barrier system (EBS) for geological disposal higher activity radioactive waste. Experimental observations indicate possibility erosion at interface with host rock due to interactions groundwater. Existing models clay are very limited in terms addressing hydro-chemical effects, while assessment long-term performance requires robust predictive cove...

Journal: :Water 2023

Groundwater has been the main resource used for drinking, domestic and agricultural activities in West central Senegal past few decades. Thus, this study investigates quality of groundwater assesses its suitability drinking irrigation purposes. To end, 42 samples were collected analyzed various chemical parameters (major ions, fluoride, pH, total dissolved solids (TDS)). Chemical data interpret...

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