Long-Term Managed Aquifer Recharge in a Saline-Water Aquifer as a Critical Component of an Integrated Water Scheme in Southwestern Florida, USA

Abstract Background In the south-western coastal region of Bangladesh ground water, normally used for drinking, is excessively saline. Increased salinity in drinking water can have a range of adverse health impacts. Managed aquifer recharge (MAR) systems, which infiltrate rainwater and fresh pond water into aquifers, are adaptive strategies to deliver low-saline water to the affected communities. Several MAR systems have been piloted in these regions. The MAR pilot study demonstrated the potential for increasing freshwater availability and sustainable year-round drinking water supplies. The objective of this study was to identify MAR system management shortcomings and strengths to provide recommendations that are applicable for future MAR systems and engineering driven water management methods in low-income countries.Methods A qualitative study among the 18 pilot MAR communities with access to MAR systems since 2010 was conducted to assess perceptions of drinking MAR water and usage patterns. We conducted in-depth interviews (24), key informant interviews (2) and focus group discussions (3).Results More than half (13) of the respondents reported that drinking saline water causes diarrhea, dysentery, gastritis, digestive or abdominal disorders none described impact on blood pressure. More than two thirds (13/18) of current MAR users reported MAR as their preferred drinking water source. Almost half (11) reported that they were familiar with MAR but don’t understand how it works. A majority of respondents (17) considered MAR water safe because they thought there are no germs present. Nonetheless, respondents mentioned several problems including dissatisfaction with water quality (salinity/iron/smell/dirt in the water), and management (MAR sites found locked for most of the day). MAR installation and management staff and technical supervisors and caretakers thought that water quality was hampered by irregular water infiltration. They reported that management and maintenance issues were their primary concern, which were impeded by limited funds, as users do not pay regularly.Conclusions Though there is a demand for drinking water from MAR systems, the concerns about management related to finance, in addition to the amount collected are the greatest threat to system functionality and sustainability, which requires community-based solutions that will provide regular oversight and maintenance.

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Fate of bulk organic carbon and bromate during indirect water reuse involving ozone and subsequent aquifer recharge

Journal of Water Reuse and Desalination ◽

10.2166/wrd.2015.222 ◽

2015 ◽

Vol 6 (3) ◽

pp. 413-420 ◽

Cited By ~ 7

Author(s):

U. Hübner ◽

S. Kuhnt ◽

M. Jekel ◽

J. E. Drewes

Keyword(s):

Organic Carbon ◽

Water Reuse ◽

Managed Aquifer Recharge ◽

Small Scale ◽

Secondary Effluent ◽

Aerobic Degradation ◽

Aquifer Recharge ◽

Column Studies ◽

The Eu

Long-term column studies with ozonated secondary effluent were conducted to evaluate the removal of dissolved organic carbon (DOC) and to assess formation and stability of the oxidation by-product bromate in combined ozonation and managed aquifer recharge (MAR) systems. DOC removal during simulated MAR was continuously increased from approximately 20 to 40% by pretreatment with ozone indicating the high potential of this combination to remove disinfection by-product (DBP) precursors. This improvement in DOC removal was likely caused by transforming DOC into fractions that are more amenable to biodegradation, as well as the supply of dissolved oxygen favouring aerobic degradation processes. Bromate formation during ozonation of secondary effluent from the Berlin-Ruhleben WWTP exceeded the limit of the EU Drinking Water Directive at a specific ozone consumption of >0.9–1.0 mg O3/mg DOC0. During oxic infiltration, no significant removal of bromate could be observed. Under anoxic conditions, bromate concentration was efficiently reduced. Additional biodegradation tests in small-scale columns indicated a simultaneous consumption of nitrate and bromate as electron acceptors.

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Characteristics of hydrochemistry and nitrogen behavior under long-term managed aquifer recharge with reclaimed water: A case study in north China

The Science of The Total Environment ◽

10.1016/j.scitotenv.2019.02.375 ◽

2019 ◽

Vol 668 ◽

pp. 1030-1037 ◽

Cited By ~ 3

Author(s):

Congzhou Li ◽

Binghua Li ◽

Erping Bi

Keyword(s):

North China ◽

Reclaimed Water ◽

Managed Aquifer Recharge ◽

Aquifer Recharge

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Managed Aquifer Recharge (MAR) in areas used for agricultural purposes: the Rye Island pilot study

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1209/1/012073 ◽

2021 ◽

Vol 1209 (1) ◽

pp. 012073

Author(s):

M Červeňanská ◽

J Mydla ◽

A Šoltész ◽

Z Danáčová ◽

E Kullman

Keyword(s):

Pilot Study ◽

Groundwater Level ◽

Managed Aquifer Recharge ◽

Adjacent Area ◽

Aquifer Recharge ◽

Term Retention ◽

Long Term Retention ◽

Recharge Dam ◽

Groundwater Level Changes

Abstract For a long-term retention of water in aquifers and its subsequent use in drier or heavier demand periods, the Managed Aquifer Recharge (MAR) techniques are studied and implemented in 4 pilot areas of the DEEPWATER-CE project. In Slovakia, the pilot study is situated in the Rye Island. A calibrated MODFLOW model is used for a prediction of groundwater level changes caused by the Recharge Dam MAR. Results of the simulations showed that the increased groundwater level caused by the realization and operation of three proposed weirs affects the volume of water infiltrated to the aquifer but does not cause the flooding of the adjacent area.

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Mapping Economic Feasibility of Managed Aquifer Recharge

Water ◽

10.3390/w12030680 ◽

2020 ◽

Vol 12 (3) ◽

pp. 680 ◽

Cited By ~ 1

Author(s):

Jean-Christophe Maréchal ◽

Madjid Bouzit ◽

Jean-Daniel Rinaudo ◽

Fanny Moiroux ◽

Jean-François Desprats ◽

...

Keyword(s):

Saline Water ◽

Water Shortage ◽

Managed Aquifer Recharge ◽

Economic Feasibility ◽

Cost Evaluation ◽

Aquifer Recharge ◽

Aquifer Storage ◽

New Information ◽

Promising Solution ◽

System Life

Managed aquifer recharge (MAR) constitutes a potential and promising solution to deal with several water management issues: water shortage, water level depletion, groundwater pollution, and saline water intrusion. Among others, the proper siting and cost evaluation of such a solution constitutes sources of uncertainty for the implementation of MAR schemes. In this study, we proposed a methodology for the assessment of the levelised cost of recharged water through an infiltration basin, including investment and operating costs. The method was implemented in a GIS-tool in order to build maps of levelised costs at the aquifer scale. The sensitivity analysis allows for the identification of the main natural characteristics (water quality and availability, etc.), technical (system life duration, recharge volume objective, etc.), and economic parameters (energy price, discount rate, etc.) that dominate the final cost estimate. The method was applied to a specific case study on an alluvial aquifer in Southern France. This new information on the economic feasibility of MAR scheme should be incorporated with more classical GIS-MCDA (relying on soil characteristics, aquifer storage capacity, land use, etc.) in order to properly site the system. Further information on financial and economic feedback from MAR implementation and research on the fate of recharged water are needed for a better benefits evaluation of this solution.

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