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Showing 1 to 13 of 13 for “"Managed aquifer recharge (MAR)"”.
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Assessment of a Passive Sampler for Aquifer Microbial Community Profiling and Comparison of Porous Media
Managed aquifer recharge (MAR) with advanced treated wastewater is a promising strategy to combat aquifer depletion; however, its impact on native microbial communities remains insufficiently characterized. Concerns include the potential introduction of pathogens, antibiotic resistance genes …
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Fluid and Pressure Dynamics in Natural and Engineered Coastal Aquifer Systems
Coastal aquifers are increasingly impacted by groundwater depletion, seawater intrusion, and land subsidence driven by long-term pumping. This dissertation uses 3D numerical modeling to evaluate how variable-density flow and geological heterogeneity influence pressure response, intrusion geometry, …
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Enhanced removal of emerging contaminants during managed aquifer recharge using optimized operating conditions
… effective water treatment systems are essential. Managed aquifer recharge (MAR), including riverbank filtration (RBF) and artificial recharge and recovery (ARR), offers an effective and promising means for providing safe drinking water. However, in order to reduce the physical footprint of these …
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Evaluation of Contaminant Removal Through Soil Aquifer Treatment by a Lab Scale Soil Column Experiment Including a Trace Contaminant Spike Test
Soil aquifer treatment (SAT), the removal of contaminants during percolation through soil, is a strategy employed in managed aquifer recharge (MAR), one method of indirect potable water reuse. As part of Hampton Roads Sanitation District's (HRSD) MAR project, The Sustainable Water Initiative for …
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Novel Multitemporal Synthetic Aperture Radar Interferometry Algorithms and Models Applied on Managed Aquifer Recharge and Fault Creep
… of Sentinel-1A/B satellites in 2014 and 2016 marked a pivotal moment in Synthetic Aperture Radar (SAR) technology, ushering in a golden era for SAR. With a revisit time of 6–12 days, these satellites facilitated the acquisition of extensive stacks of high-resolution SAR images, enabling …
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The viability of transforming stormwater detention ponds into infiltration ponds on the Cape Flats, South Africa
… water security, including groundwater use with managed aquifer recharge (MAR). A previous simulation-based study found that stormwater harvesting (SWH) via MAR was viable in Cape Town and proposed implementing MAR in retrofitted detention ponds overlying the unconfined Cape Flats Aquifer (CFA). …
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Transport of Per- and Polyfluoroalkyl Substances (PFAS) at a Managed Aquifer Recharge Site
In response to aquifer overuse and its related issues in eastern Virginia, the Hampton Roads Sanitation District (HRSD) is conducting a managed aquifer recharge (MAR) project called the Sustainable Water Initiative For Tomorrow (SWIFT). The objective of the SWIFT program is to treat wastewater to …
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Transition to Novel Internet of Things Technology for Management of Groundwater Resources? Case of Cape Town, South Africa
… quantitative/qualitative characterisation of the aquifer. It is vital to confirm the groundwater parameters during hydrogeological investigations as groundwater depends on factors like geology, climate, lithology, slope and many others. However, there needs to be sufficient data to conduct these …
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Evaluating the Occurrence, Fate and Human Health Risks of Contaminants of Emerging Concern in the Atlantis Managed Aquifer Recharge Scheme
Managed aquifer recharge (MAR) using stormwater and treated effluent is a vital strategy for sustaining urban aquifers used for potable supply in water-scarce regions. However, the quality of these recharge waters is a concern, as they often contain contaminants of emerging concern (CECs) that may …
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Review and gap analysis of Water Sensitive Urban Design (WSUD) in Windhoek, Namibia
… IUWM include Water Demand Management (WDM), Managed Aquifer Recharge (MAR) and Water Conservation (WC). In order for Windhoek to transform into a Water Sensitive City, the implementation of WSUD is imperative. Although the CoW has implemented measures towards IUWM, more options still need to …
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The capacity of the Cape Flats aquifer and its role in water sensitive urban design in Cape Town
… investigates the capacity of the Cape Flats Aquifer (CFA), assessing the feasibility of implementing Managed Aquifer Recharge (MAR) as a strategy for flood prevention and supplementing urban water supply. The implementation of MAR on the CFA aims to facilitate the transition towards …
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Chemistry of Nanoscale Solids and Organic Matter in Sustainable Water Management Systems
… (WWTPs), water desalination plants (WDPs), and managed aquifer recharge systems (MARs) are three representative sustainable water management (SWM) systems. But the operation of all three poses two fundamental questions: (1) What is the fate of nanoscale solids (e.g., engineered nanomaterials, …
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Treating filtered final effluent from the Cape Flats Wastewater treatment plant with ozone and biologically activated carbon filtration to remove pathogens and organic micropollutants
… processes in the treatment train of the Managed Aquifer Recharge (MAR) scheme of the Cape Flats Aquifer, one of the new bulk water schemes that originated out of the Cape Town drought peak during the period spanning between 2015–2017. It is an indirect potable reuse scheme that consists …