The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
Magnus Persson - One of the best experts on this subject based on the ideXlab platform.
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Artificial Recharge by floodwater spreading estimated by water balances and groundwater modelling in arid Iran
Hydrological Sciences Journal, 2014Co-Authors: Hossein Hashemi, Ronny Berndtsson, Magnus PerssonAbstract:AbstractWater harvesting and Artificial Recharge have been a traditional solution to water scarcity problems in the arid and semi-arid Middle East for thousands of years. These techniques are increasingly being encouraged, and recently there has been renewed interest to find improved methods for water harvesting and Artificial Recharge in many arid countries. In this study, water balance calculations and groundwater modelling were utilized to investigate the performance and hydrological function of an improved water harvesting technique, referred to as the floodwater spreading system, in arid Iran. The Recharge amount in the floodwater spreading system studied varied from a few hundred thousand cubic metres per month during drought periods to about 4.5 × 106 m3 per month during rainy periods. However, the gain through Artificial Recharge was diminished by excessive groundwater abstraction by numerous newly drilled pumping wells. Hence, the groundwater declined in spite of the Artificial Recharge. However,...
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Artificial Recharge by floodwater spreading estimated by water balances and groundwater modeling
2011Co-Authors: Hossein Hashemi, Ronny Berndtsson, Magnus PerssonAbstract:Water harvesting and Artificial Recharge have been the main and parsimonious solution for water scarcity problems in the arid and semiarid Middle East for thousands of years. These techniques are increasingly being encouraged and at present there has been a renewed interest to find improved methods for water harvesting and Artificial Recharge in many arid countries. In the present study water balance calculations and groundwater modeling were utilized to investigate the performance and hydrological function of an improved water harvesting technique called floodwater spreading system in arid Iran. The Recharge amount varied from a few hundred thousand cubic meter per month during drought periods to about 4.5 million cubic meter per month during rainy periods. The gain through Artificial Recharge, however, was depleted by too much groundwater abstraction by numerous new-drilled pumping wells. Hence, the groundwater declined in spite of the Artificial Recharge. With a balanced pumping, however, this research showed that the floodwater spreading system could be an efficient way to increase groundwater resources in arid and semiarid areas. Further research is needed to optimize the floodwater harvesting system for improving the management in view of uncertain frequency and magnitude of inflow.
Hatem Ibrahim - One of the best experts on this subject based on the ideXlab platform.
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Site selection for Artificial Recharge with treated wastewater with the integration of multi-criteria evaluation and ELECTRE III
Environmental Science and Pollution Research, 2021Co-Authors: Marwa Mahmoudi, Abdelwaheb Aydi, Hatem IbrahimAbstract:The suitable location selection for Artificial Recharge with treated wastewater is an important issue, especially in arid and semiarid countries as a result of rapid population growth, increasing water demand, excessive use of groundwater resources, and mismanagement of limited freshwater resources. However, the determination of suitable sites is a complex process affected the environment, social, and economic concerns. This study shows the integration of the geographic information system (GIS) and the multi-criteria evaluation (MCE) to determine a suitable Artificial Recharge site with treated wastewater for Ariana, Tunisia. According to the literature review, data available on Artificial Recharge and regional characteristics, thirteen constraints and five factors were determined to choose the best potential site for Artificial Recharge. The constraints helped the determination of unsuitable sites with Boolean logic, while factors, standardized using fuzzy logic and weighted with the analytic hierarchy process (AHP), helped to identify suitable locations. All criteria were overlaid on a decision structure after two scenarios based on environment and economic were identified with a weighted linear combination (WLC) that selects the suitable sites for Artificial Recharge. The results indicated that three potential sites were suitable for Artificial Recharge with treated wastewater. Finally, the ELECTRE III method was used to classify the three determining potential areas to order the best locations for aquifer Recharge with treated water according to their characteristics from higher to lower weighted: distance from the road, geometric form of the site, cost of the site, and distance from wetlands.
Michael Johnson - One of the best experts on this subject based on the ideXlab platform.
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Cost-Benefit Analysis of Artificial Recharge in Las Vegas Valley, Nevada
Journal of Water Resources Planning and Management, 2002Co-Authors: David J. Donovan, Erin Cole, Terry Katzer, Michael JohnsonAbstract:An integral part of groundwater in Las Vegas Valley, NE, is Artificial Recharge. Artificial groundwater Recharge started in the late 1980s and as of the year 2000, the Southern Nevada Water Authority entities have Recharged over 246,000,000 m³ (200,000 acre-ft) of water, which is in storage in the valley’s aquifer system. Benefits from Artificial Recharge accrue to all valley residents, but in particular to municipal-industrial, domestic, public supply, and commercial well owners. The benefits are lower energy costs for pumping, decreased need to deepen wells, lower maintenance for wells that could potentially be damaged by subsidence, and additional water for the aquifer system. Although Artificial Recharge is currently a “free” benefit to all nonmunicpal groundwater pumpers, active management of aquifer system would be enhanced by participation of all users in the Artificial Recharge program. In an effort to include all groundwater pumpers in the management of the aquifer system, a groundwater management program (GMP) was established. The costs and benefits for participation by nonmunicipal groundwater pumpers are presented, indicating a savings of about $700 annually for nonmunicpal members of the GMP.
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Artificial Recharge in the Las Vegas Valley: An Operational history
1997Co-Authors: Michael Johnson, Erin ColeAbstract:Artificially recharging the Las Vegas Valley (Valley) ground-water system with treated Colorado River water is one water resource management option employed by the Las Vegas Valley Water District (District) to help meet future long-term and short-term peak water demands. The District began operation of an Artificial ground-water Recharge program in 1988 in order to bank water for future use and to slow declining water levels. Artificial Recharge occurs in the winter months, typically from October to May, when there is excess capacity in the Southern Nevada Water System (SNWS), currently a 400 Million Gallon per Day (MGD) treatment and transmission system. Treated Colorado River water is Recharged into the principal aquifer through the District's existing distribution system, to a network of production wells or dual -use wells for both Recharge and production. The water is then stored until recovered from the wells, during the high demand summer months. The water recovered is injected Colorado River water, however, this water is accounted against the District's groundwater rights. Credits in the Artificial Recharge account accrue until needed to cover pumpage in excess of permitted ground-water rights. Wells used in the program were drilled and constructed in a variety of ways, and have responded differently to Artificial Recharge operations. The majority of the wells now used for Artificial Recharge and production were completed prior to 1980, using the cable-tool drilling method, perforated in place and naturally developed. Other wells were installed using the reverse-circulation drilling method with filter packs. The District commenced drilling dedicated injection wells in 1993, to address operational concerns observed in some of the production wells. Several types of installation and drilling methods have been used to optimize injection. The types of drilling methods used for the injection wells include, reverse circulation, air-foam, cable tool and dualrotary. In 1988, two dual-use wells where used for production and Artificial Recharge, injecting an annual total of 1,153 acre feet of water. Since 1988 the Artificial Recharge program has expanded, using up to 40 wells with eight dedicated injection wells. Total water banked for future use, as of January 1, 1997 is 114,126 acre feet of water. Static water levels in the principal aquifer have risen from 10 to 40 feet in the main area of Artificial Recharge. Water levels in other areas of the Valley also show increases, indicating that the rise is not isolated, but is occurring throughout the principal aquifer. The Artificial Recharge program is currently expanding to utilize 31 dual use and 19 injection wells, for a potential capacity of 62,000 gallons per minute of injection or 45,000 acre feet per year of Recharge by the fall of 1999.
Hossein Hashemi - One of the best experts on this subject based on the ideXlab platform.
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Artificial Recharge by floodwater spreading estimated by water balances and groundwater modelling in arid Iran
Hydrological Sciences Journal, 2014Co-Authors: Hossein Hashemi, Ronny Berndtsson, Magnus PerssonAbstract:AbstractWater harvesting and Artificial Recharge have been a traditional solution to water scarcity problems in the arid and semi-arid Middle East for thousands of years. These techniques are increasingly being encouraged, and recently there has been renewed interest to find improved methods for water harvesting and Artificial Recharge in many arid countries. In this study, water balance calculations and groundwater modelling were utilized to investigate the performance and hydrological function of an improved water harvesting technique, referred to as the floodwater spreading system, in arid Iran. The Recharge amount in the floodwater spreading system studied varied from a few hundred thousand cubic metres per month during drought periods to about 4.5 × 106 m3 per month during rainy periods. However, the gain through Artificial Recharge was diminished by excessive groundwater abstraction by numerous newly drilled pumping wells. Hence, the groundwater declined in spite of the Artificial Recharge. However,...
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Artificial Recharge by floodwater spreading estimated by water balances and groundwater modeling
2011Co-Authors: Hossein Hashemi, Ronny Berndtsson, Magnus PerssonAbstract:Water harvesting and Artificial Recharge have been the main and parsimonious solution for water scarcity problems in the arid and semiarid Middle East for thousands of years. These techniques are increasingly being encouraged and at present there has been a renewed interest to find improved methods for water harvesting and Artificial Recharge in many arid countries. In the present study water balance calculations and groundwater modeling were utilized to investigate the performance and hydrological function of an improved water harvesting technique called floodwater spreading system in arid Iran. The Recharge amount varied from a few hundred thousand cubic meter per month during drought periods to about 4.5 million cubic meter per month during rainy periods. The gain through Artificial Recharge, however, was depleted by too much groundwater abstraction by numerous new-drilled pumping wells. Hence, the groundwater declined in spite of the Artificial Recharge. With a balanced pumping, however, this research showed that the floodwater spreading system could be an efficient way to increase groundwater resources in arid and semiarid areas. Further research is needed to optimize the floodwater harvesting system for improving the management in view of uncertain frequency and magnitude of inflow.
Marwa Mahmoudi - One of the best experts on this subject based on the ideXlab platform.
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Site selection for Artificial Recharge with treated wastewater with the integration of multi-criteria evaluation and ELECTRE III
Environmental Science and Pollution Research, 2021Co-Authors: Marwa Mahmoudi, Abdelwaheb Aydi, Hatem IbrahimAbstract:The suitable location selection for Artificial Recharge with treated wastewater is an important issue, especially in arid and semiarid countries as a result of rapid population growth, increasing water demand, excessive use of groundwater resources, and mismanagement of limited freshwater resources. However, the determination of suitable sites is a complex process affected the environment, social, and economic concerns. This study shows the integration of the geographic information system (GIS) and the multi-criteria evaluation (MCE) to determine a suitable Artificial Recharge site with treated wastewater for Ariana, Tunisia. According to the literature review, data available on Artificial Recharge and regional characteristics, thirteen constraints and five factors were determined to choose the best potential site for Artificial Recharge. The constraints helped the determination of unsuitable sites with Boolean logic, while factors, standardized using fuzzy logic and weighted with the analytic hierarchy process (AHP), helped to identify suitable locations. All criteria were overlaid on a decision structure after two scenarios based on environment and economic were identified with a weighted linear combination (WLC) that selects the suitable sites for Artificial Recharge. The results indicated that three potential sites were suitable for Artificial Recharge with treated wastewater. Finally, the ELECTRE III method was used to classify the three determining potential areas to order the best locations for aquifer Recharge with treated water according to their characteristics from higher to lower weighted: distance from the road, geometric form of the site, cost of the site, and distance from wetlands.
