groundwater recharge Articles | Environmental XPRT

Water dynamics and groundwater recharge in a deep vadose zone

Understanding soil water dynamics and accurately estimating groundwater recharge are essential steps in achieving efficient and sustainable management of groundwater resources in regions with deep vadose zones. The objective of this study was to understand transient data and the dynamics nature of water from deep sections at the thick vadose zone, and to estimate groundwater recharge by ...

Nov. 17, 2015

By IWA Publishing

Researchers: Current global groundwater recharge models inaccurate

A large-scale analysis of existing water resource models used around the world has found some key processes are missing, which means estimates of water availability could be wrong and cannot be reliably used for making water management decisions. The international team of scientists found that important climate change impact models are wrong in some areas. One finding was that groundwater ...

May 16, 2017

By Fluence Corporation

Modeling the groundwater recharge in karst aquifers by using a reservoir model

The estimation of the groundwater recharge in a karstic system becomes an important challenge due to the great hydrodynamic variability in both time and space. This paper proposes a two reservoir conceptual model to simulate inflow into both the conduit system and the fissure network system based on the analysis of the spring hydrograph. The structure of the model and the governing equations are ...

Jul. 18, 2013

By IWA Publishing

Maximizing Recycled Water Recharge in the Chino Groundwater Basin, California

The Chino Basin Groundwater Recharge Project is a comprehensive water supply project that includes maximizing recycled water recharge. This paper focuses on critical components, challenges, and successes of the start-up process of recycled water recharge operations that are enabling Inland Empire Utilities Agency (IEUA) to maximize recharge recycled water. It will also present results of the ...

Oct. 20, 2006

By Water Environment Federation (WEF)

Quantitative estimation of groundwater recharge ratio along the riparian of the Yellow River

Quantitative estimation of groundwater recharge is crucial for limited water resources management. A combination of isotopic and chemical indicators has been used to evaluate the relationship between surface water, groundwater, and rainfall around the riparian of the Yellow River in the North China Plain (NCP). The ion molar ratio of sodium to chloride in surface- and groundwater is 0.6 and 0.9, ...

Dec. 12, 2013

By IWA Publishing

Multi-criteria analysis of site selection for groundwater recharge with treated municipal wastewater

Geographic information systems (GIS) and remote sensing techniques are used as a decision support system to identify potential soil aquifer treatment (SAT) sites for groundwater recharge of Kerman aquifer, which is located in the southeast of Iran. These sites are identified using a single-objective multi-criteria analysis. To ensure technical feasibility, environmental sustainability, social ...

May 14, 2017

By IWA Publishing

Groundwater recharge during spring thaw in the Prairie Pothole Region of North America

Snowmelt governs recharge in the Prairie Pothole Region of North America, but little is known about the soil at the time of recharge. Depth of snow, surface water, water table, and frozen soil were measured within a 2-ha landscape depression in Minnesota during spring thaw in 2000 and 2001. The water table rose by at least 1 m within 24 h after a pond formed within the landscape depression as a ...

Sep. 28, 2009

By Inderscience Publishers

Uncertainty and urban water recharge for managing groundwater availability using decision support

Quantifying groundwater availability depends upon sound methods and the use of integrated models. To determine availability or sustainable yield, the influence of scientific uncertainty from key sources, such as anthropogenic recharge, must be considered. This study evaluates uncertainty in recharge interpretations on the modeled available water balance for an urban case in Texas, USA. Analyses ...

Dec. 14, 2014

By IWA Publishing

Recharge areas and geochemical evolution of groundwater in an alluvial aquifer system in the Sultanate of Oman

A regional hydrogeochemical model was developed to evaluate the geochemical evolution of different groundwaters in an alluvial aquifer system in the Interior of Oman. In combination with environmental isotopes the model is able to extract qualitative and quantitative information about recharge, groundwater flow paths and hydraulic connections between different aquifers. The main source of water ...

Dec. 31, 2005

By Springer

Investigation of introducing water from an artificial recharge plant to an existing groundwater distribution system

ABSTRACTThe consequences of mixing water from the Arrenaes Artificial Recharge (AR) trial plant with groundwater from existing well fields have been investigated. The potential problems of interest are bacterial regrowth, precipitation of iron, and corrosion in the raw water distribution system. The AR trial plant is located on the Arrenaes peninsula on Zealand, Denmark. A large-scale production ...

Dec. 31, 2004

By IWA Publishing

The importance of preferential flow in controlling groundwater recharge in tropical Africa and implications for modelling the impact of climate change on groundwater resources

An improved water table fluctuation technique for estimating recharge is applied to a sustained (10-year) groundwater level monitoring record in Uganda, a rare dataset for tropical Africa, and compared against results from soil moisture balance models (SMBMs) and unsaturated flow models. The results show that recharge is directly proportional to rainfall (long-term average rainfall is around 1200 ...

Nov. 30, 2010

By IWA Publishing

The impact of plant water uptake and recharge on groundwater level at a site in the Loess Plateau of China

Shallow groundwater in unconsolidated sediments represents a substantial water resource in the Chinese Loess Plateau. However, prior to development of the water supply for agriculture, annual and seasonal fluctuation of the recharge mechanism should be clarified. Since the region is arid, the effect of plant water uptake on groundwater fluctuation must also be assessed. A study was therefore ...

Dec. 12, 2012

By IWA Publishing

Responses of groundwater vulnerability to artificial recharge under extreme weather conditions in Shijiazhuang City, China

Artificial recharge is becoming one of the most important ways to deal with water shortage and induced environmental geological problems, but it also brings potential groundwater contaminant risks, especially under extreme weather conditions. A classic method, DRASTIC, and groundwater flow simulation model have been used to analyze the response of groundwater vulnerability to artificial recharge ...

May 14, 2014

By IWA Publishing

Recharge mechanism and hydrochemistry evaluation of groundwater in the Nuaimeh area, Jordan, using environmental isotope techniques

The relationship between the stable isotopic and chemical composition of precipitation and groundwater was studied in the Nuaimeh area of the Ajloun Highlands in Jordan. The isotopic composition values of precipitation and groundwater are almost identical. The spatial variation of stable isotopes in precipitation is mainly due to the effect of seasonal temperature, altitude and amount. The ...

Dec. 31, 2005

By Springer

Groundwater recharge and discharge analysis for land use conditions suitable for the hydrology and ecology of semiarid regions

Land use is critical for the hydrology of arid/semiarid regions with fragile/valuable ecosystems. Using Western Jilin as proxy for arid/semiarid, four land use conditions were investigated for the sustainability of fragile/valuable ecosystems – land use conditions for 1930 (pre-development), 2010 (post-development), forestland and grassland. For forestland/grassland, barren/bare-lands and ...

Aug. 11, 2014

By IWA Publishing

Groundwater-recharge estimation using a surface electrical resistivity method in the Himalayan foothill region, India

A new method for the estimation of groundwater recharge is presented using a surface resistivity method and isotope technique. A linear relationship was obtained between the resistivity of the unsaturated top layer and the recharge estimated using a tritium tagging technique for the piedmont zone in the Himalayan foothill region, India. The relation can be used for the estimation of recharge ...

Dec. 31, 2005

By Springer

Tracing groundwater recharge sources beneath a reservoir on a mountain-front plain using hydrochemistry and stable isotopes

Mountain-front recharge, including mountain block recharge and stream seepage, is important for basin aquifers. With the construction of reservoirs in mountainous areas and the recurrent seepage problems of dams, reservoir seepage might become another type of mountain-front recharge. This study identified the recharge sources of groundwater beneath Huangbizhuang Reservoir on the North China ...

Mar. 24, 2017

By IWA Publishing

Influence of a dual monsoon system and two sources of groundwater recharge on Kofu basin alluvial fans, Japan

This study investigates the contribution ratios of different groundwater recharge sources and influence of a dual monsoon system in Kofu basin, central Japan, through the hydrogen and oxygen isotopic analysis of precipitation, river water, and groundwater. The study is focused on the area of the Kamanashigawa and Midaigawa alluvial fans, which are formed by two main rivers. Precipitation ...

Aug. 16, 2016

By IWA Publishing

Field investigation of aquifer storage and recovery (ASR) technique to recharge groundwater: a case study in Punjab province of Pakistan

Fast decline of groundwater levels in Pakistan requires the use of artificial recharging techniques to minimize the adverse effect of over pumping. A study was conducted in the Toba Tek Singh district, Punjab, Pakistan, to investigate aquifer storage and recovery (ASR) technology to recharge groundwater. The facility was developed by drilling a pumping/injection well and constructing the water ...

May 28, 2017

By IWA Publishing

Evaluating the performance of water purification in a vegetated groundwater recharge basin maintained by short-term pulsed infiltration events

Infiltration of surface water constitutes an important pillar in artificial groundwater recharge. However, insufficient transformation of organic carbon and nutrients, as well as clogging of sediments often cause major problems. The attenuation efficiency of dissolved organic carbon (DOC), nutrients and pathogens versus the risk of bioclogging for intermittent recharge were studied in an ...

Jul. 30, 2015

By IWA Publishing

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