scholarly journals Demonstrating managed aquifer recharge as a solution for climate change adaptation: results from Gabardine project and asemwaterNet coordination action in the Algarve region (Portugal)

2014 ◽  
Author(s):  
João Paulo Lobo Ferreira ◽  
Teresa E. Leitão
Keyword(s):  
Climate Change ◽  
Groundwater Quality ◽  
Managed Aquifer Recharge ◽  
Aquifer Recharge ◽  
Pilot Site ◽  
Research Activities ◽  
Southern Portugal ◽  
Coordination Action ◽  
Water Surplus

In the Algarve southern Portugal region, Managed Aquifer Recharge (MAR) research activities have been developed to provide not only water surplus storage in aquifers during wet years, focusing in the Querença-Silves aquifer (FP6 ASEMWATERNet Coordination Action), but also groundwater quality rehabilitation in the Campina de Faro aquifer (FP6 Gabardine Project). Following MAR research potentialities in southern Portugal, this paper describes the objectives, conceptual demonstration, background and capabilities of one of the selected Circum-Mediterranean pilot sites (in Portugal) that will be researched in the new FP7-ENV-2013-WATER-INNO-DEMO MARSOL project, which started Dec. 1st, 2013. In the Algarve pilot site, several case-study areas will be located in the Querença-Silves aquifer and in the Campina de Faro aquifer.

scholarly journals Climate-informed hydrologic modeling and policy typology to guide managed aquifer recharge

2021 ◽  
Vol 7 (17) ◽  
pp. eabe6025
Author(s):  
Xiaogang He ◽  
Benjamin P. Bryant ◽  
Tara Moran ◽  
Katharine J. Mach ◽  
Zhongwang Wei ◽  
...  
Keyword(s):  
Climate Change ◽  
Investment Decisions ◽  
Managed Aquifer Recharge ◽  
Future Climate ◽  
Future Climate Change ◽  
Nonlinear Interactions ◽  
Aquifer Recharge ◽  
Groundwater Sustainability ◽  
Groundwater Aquifers

Harvesting floodwaters to recharge depleted groundwater aquifers can simultaneously reduce flood and drought risks and enhance groundwater sustainability. However, deployment of this multibeneficial adaptation option is fundamentally constrained by how much water is available for recharge (WAFR) at present and under future climate change. Here, we develop a climate-informed and policy-relevant framework to quantify WAFR, its uncertainty, and associated policy actions. Despite robust and widespread increases in future projected WAFR in our case study of California (for 56/80% of subbasins in 2070–2099 under RCP4.5/RCP8.5), strong nonlinear interactions between diversion infrastructure and policy uncertainties constrain how much WAFR can be captured. To tap future elevated recharge potential through infrastructure expansion under deep uncertainties, we outline a novel robustness-based policy typology to identify priority areas of investment needs. Our WAFR analysis can inform effective investment decisions to adapt to future climate-fueled drought and flood risk over depleted aquifers, in California and beyond.

Groundwater quality concern for wider adaptability of novel modes of managed aquifer recharge (MAR) in the Ganges Basin, India

2021 ◽  
Vol 246 ◽  
pp. 106659
Author(s):  
Sunil Kumar Jha ◽  
Vinay Kumar Mishra ◽  
Chhedi Lal Verma ◽  
Navneet Sharma ◽  
Alok Kumar Sikka ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Managed Aquifer Recharge ◽  
Aquifer Recharge ◽  
Ganges Basin ◽  
The Ganges

scholarly journals Low Trihalomethane Formation during Managed Aquifer Recharge with Chlorinated Desalinated Water

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 711 ◽  
Author(s):  
Anat Bernstein ◽  
Raz Studny ◽  
Vinolia Shyntychea ◽  
Daniel Kurtzman ◽  
Yonatan Ganot ◽  
...  
Keyword(s):  
Drinking Water ◽  
Vadose Zone ◽  
Large Scale ◽  
Managed Aquifer Recharge ◽  
Small Scale ◽  
Aquifer Recharge ◽  
Unique Case ◽  
Order Of Magnitude ◽  
By Products

Trihalomethanes (THMs) are toxic disinfection by-products, formed in the reaction of chlorine with organic matter. This work aimed to study THM formation during a unique case study of managed aquifer recharge (MAR) with chlorinated desalinated seawater. THM formation was tested in the field, along a 3.0 m deep vadose zone gallery. Two small-scale experiments were conducted in the site, with untreated and with bromide spiked desalinated seawater. These were accompanied by a large-scale, ~1-month long operational MAR event. In the small-scale experiments, THM concentrations were shown to increase with bromide concentrations, with increasing dominance of the brominated species. Nevertheless, concentrations remained within the single µg/L range, which is an order of magnitude lower than drinking water regulations. Such low THM concentrations were also determined in the large-scale event. In both cases, THM formation occurred in the ponding water, without significant formation or degradation in the upper 3.0 m of the vadose zone. This study shows that MAR with chlorinated (<0.5 mg/L) desalinated seawater through sandy infiltration basins does not pose a threat to drinking water quality at this site.

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