scholarly journals Water Quality Considerations on the Rise as the Use of Managed Aquifer Recharge Systems Widens

Water ◽  
2017 ◽  
Vol 9 (10) ◽  
pp. 808 ◽  
Author(s):  
Niels Hartog ◽  
Pieter Stuyfzand
Keyword(s):  
Water Quality ◽  
Managed Aquifer Recharge ◽  
Aquifer Recharge

scholarly journals Comparative assessment of managed aquifer recharge versus constructed wetlands in managing chemical and microbial risks during wastewater reuse: a review

2013 ◽  
Vol 4 (1) ◽  
pp. 1-8 ◽  
Author(s):  
A. F. Hamadeh ◽  
S. K. Sharma ◽  
G. Amy
Keyword(s):  
Water Quality ◽  
Constructed Wetlands ◽  
Wastewater Reuse ◽  
Cost Effective ◽  
Managed Aquifer Recharge ◽  
Water Recovery ◽  
Aquifer Recharge ◽  
Natural Treatment Systems ◽  
Natural Treatment ◽  
Pre Treatment

Constructed wetlands (CWs) and managed aquifer recharge (MAR) represent commonly used natural treatment systems for reclamation and reuse of wastewater. However, each of these technologies have some limitations with respect to removal of different contaminants. Combining these two technologies into a hybrid CW-MAR system will lead to synergy in terms of both water quality and costs. This promising technology will help in the reduction of bacteria and viruses, trace and heavy metals, organic micropollutants, and nutrients. Use of subsurface flow CWs as pre-treatment for MAR has multiple benefits: (i) it creates a barrier for different microbial and chemical pollutants, (ii) it reduces the residence time for water recovery, and (iii) it avoids clogging during MAR as CWs can remove suspended solids and enhance the reclaimed water quality. This paper analyzes the removal of different contaminants by CW and MAR systems based on a literature review. It is expected that a combination of these natural treatment systems (CWs and MAR) could become an attractive, efficient and cost-effective technology for water reclamation and reuse.

scholarly journals Microbial population changes during managed aquifer recharge (MAR)

2009 ◽  
Vol 30 (1) ◽  
pp. 33
Author(s):  
Simon Toze ◽  
Deborah Reed
Keyword(s):  
Water Quality ◽  
Population Dynamics ◽  
Population Structure ◽  
Microbial Population ◽  
Managed Aquifer Recharge ◽  
Quality Changes ◽  
Aquifer Recharge ◽  
Population Changes ◽  
Recycled Water ◽  
Microbial Population Dynamics

Managed aquifer recharge (MAR) is a technique that can be used to capture and store water in aquifers under managed conditions for later recovery and use for specific purposes. There is a need to predict water quality changes during MAR, particularly when recycled water is used as the recharged water. An understanding of the interaction between the geochemistry of the aquifer and the microbial population dynamics in the groundwater is important for understanding any water quality changes. A study was undertaken to monitor the changes in the microbial population and link this to changes in the geochemistry. The results obtained showed that the recharge of recycled water to aquifers causes a change in microbial population structure which has direct links to corresponding changes in geochemistry.

Managed aquifer recharge: state-of-the-art and opportunities

2015 ◽  
Vol 15 (3) ◽  
pp. 578-588 ◽  
Author(s):  
Robert G. Maliva
Keyword(s):  
Water Quality ◽  
State Of The Art ◽  
Leading Edge ◽  
Managed Aquifer Recharge ◽  
Screening Tools ◽  
Successful Implementation ◽  
Aquifer Recharge ◽  
Aquifer Characterization ◽  
Modeling Methods ◽  
Local Solutions

The performance of managed aquifer recharge (MAR) systems is highly dependent upon local hydrogeology, which controls the movement and mixing of stored water and fluid–rock interactions, which can impact recharged water quality. The leading edge of MAR technology is the integration of data obtained using conventional and advanced aquifer characterization technologies into groundwater models that have improved predictive capabilities. Borehole and surface geophysical technologies and geostatistical and stochastic modeling methods, in particular, offer opportunities for improved aquifer characterization and modeling. The objective is to develop more accurate groundwater models that can be used as site-screening tools to identify locations and aquifers that have the greatest potential for successful implementation of MAR and to evaluate various design and operational options to find optimal local solutions.

scholarly journals Water quality changes during the first meter of managed aquifer recharge

2021 ◽  
Author(s):  
Kristofer Hägg ◽  
Jing Li ◽  
Masoumeh Heibati ◽  
Kathleen R. Murphy ◽  
Catherine J. Paul ◽  
...  
Keyword(s):  
Water Quality ◽  
Unsaturated Zone ◽  
Sampling Method ◽  
Managed Aquifer Recharge ◽  
Quality Changes ◽  
Aquifer Recharge ◽  
Basin Management ◽  
Infiltration Basin ◽  
Direct Sampling ◽  
High Treatment

The direct sampling method revealed the high treatment capacity of the unsaturated zone and the significant impact of infiltration basin management on microbial communities in managed aquifer recharge (MAR).

scholarly journals Surface Water Quality Regulation as a Driver for Groundwater Recharge

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Nell Green Nylen
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Coastal Plain ◽  
Surface Water Quality ◽  
Managed Aquifer Recharge ◽  
Nutrient Pollution ◽  
Aquifer Recharge ◽  
Aquifer System ◽  
Groundwater Overdraft ◽  
Quality Regulation

Water scarcity commonly motivates managed aquifer recharge projects, but other factors can motivate recharge efforts, including in relatively water-rich areas. Surface water quality regulation has been a major driving force behind a large-scale recharge project in development in Virginia’s Coastal Plain region, where nutrient pollution from agricultural and urban sources has degraded the Chesapeake Bay’s ecosystems, leading state and federal regulators to require dischargers to reduce their nutrient contributions to the watershed over time. Hampton Roads Sanitation District is pursuing the Sustainable Water Initiative for Tomorrow, an innovative, multi-benefit initiative designed to address both nutrient pollution in the Chesapeake Bay watershed and regional groundwater overdraft in the Coastal Plain. When fully implemented, the initiative is expected to recharge approximately 100 million gallons per day of drinking-water quality, treated municipal wastewater into the Potomac Aquifer System through injection facilities located at five of the District’s wastewater treatment plants. As a result, the District expects to reduce its nutrient discharges from those plants by approximately 90%, enabling it to meet its own mandated nutrient limits while also generating nutrient credits that it can trade to other dischargers. Modeling suggests that the initiative will increase regional water pressure within the confined aquifer system, helping to combat groundwater overdraft and its negative impacts, including aquifer compaction and related land subsidence, falling water levels in wells, and saltwater intrusion. This case study provides insights into the influence of institutional context on managed aquifer recharge and on multi-benefit water resource projects more generally.

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