Characterisation of the impact of dissolved organic matter on iron, manganese, and arsenic mobilisation during bank filtration

Abdelrady, Ahmed; Sharma, Saroj; Sefelnasr, Ahmed; Kennedy, Maria D.

doi:10.1016/j.jenvman.2019.110003

Cited by 41 publications

(8 citation statements)

References 49 publications

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“…Recent laboratory experiments mimicking anaerobic RBF found that humic content relative to fulvic and tyrosine compositions impacted the release of Fe and Mn, which was attributed to the electron shuttling capacity of higher molecular weight humics; arsenic was strongly correlated to Fe release. 133 Batch experiments using arsenopyrite simulated effects of various organic matter compositions on oxidation of arsenopyrite and As repartitioning. Fulvic acid treatments were found to inhibit secondary Fe precipitation relative to humic acid systems.…”

Section: Mechanisms Of Contaminant Mobilizationmentioning

confidence: 99%

Mobilization of Arsenic and Other Naturally Occurring Contaminants during Managed Aquifer Recharge: A Critical Review

Fakhreddine

Prommer

Scanlon

et al. 2021

Environ. Sci. Technol.

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Population growth and climate variability highlight the need to enhance freshwater security and diversify water supplies. Subsurface storage of water in depleted aquifers is increasingly used globally to alleviate disparities in water supply and demand often caused by climate extremes including floods and droughts. Managed aquifer recharge (MAR) stores excess water supplies during wet periods via infiltration into shallow underlying aquifers or direct injection into deep aquifers for recovery during dry seasons. Additionally, MAR can be designed to improve recharge water quality, particularly in the case of soil aquifer treatment and riverbank filtration. While there are many potential benefits to MAR, introduction of recharge water can alter the native geochemical and hydrological conditions in the receiving aquifer, potentially mobilizing toxic, naturally occurring (geogenic) contaminants from sediments into groundwater where they pose a much larger threat to human and ecosystem health. On the basis of the present literature, arsenic poses the most widespread challenge at MAR sites due to its ubiquity in subsurface sediments and toxicity at trace concentrations. Other geogenic contaminants of concern include fluoride, molybdenum, manganese, and iron. Water quality degradation threatens the viability of some MAR projects with several sites abandoning operations due to arsenic or other contaminant mobilization. Here, we provide a critical review of studies that have uncovered the geochemical and hydrological mechanisms controlling mobilization of arsenic and other geogenic contaminants at MAR sites worldwide, including both infiltration and injection sites. These mechanisms were evaluated based on site-specific characteristics, including hydrological setting, native aquifer geochemistry, and operational site parameters (e.g., source of recharge water and recharge/recovery cycling). Observed mechanisms of geogenic contaminant mobilization during MAR via injection include shifting redox conditions and, to a lesser extent, pH-promoted desorption, mineral solubility, and competitive ligand exchange. The relative importance of these mechanisms depends on various site-specific, operational parameters, including pretreatment of injection water and duration of injection, storage, and recovery phases. This critical review synthesizes findings across case studies in various geochemical, hydrological, and operational settings to better understand controls on arsenic and other geogenic contaminant mobilization and inform the planning and design of future MAR projects to protect groundwater quality. This critical review concludes with an evaluation of proposed management strategies for geogenic contaminants and identification of knowledge gaps regarding fate and transport of geogenic contaminants during MAR.

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Section: Mechanisms Of Contaminant Mobilizationmentioning

confidence: 99%

Mobilization of Arsenic and Other Naturally Occurring Contaminants during Managed Aquifer Recharge: A Critical Review

Fakhreddine

Prommer

Scanlon

et al. 2021

Environ. Sci. Technol.

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“…Abdelrady et al (2020) explored the impact of OM on Fe, Mn and As mobilization during river bank filtration and found that humic substances increased the release of Fe and Mn into the filtrate water while elevated concentrations of tyrosine-like OM induced additional As release. 83 Overall, these results, summarized at Fig. S9, † emphasize the significant role of HA-like OM in the mobilization of accumulated metals on the inner walls of pipes and highlight the importance of monitoring OM in WDSs.…”

Section: Effect Of Humic Acid On Metal Release From Pipe Scalesmentioning

confidence: 58%

“…One explanation for this phenomenon may relate to the OM form as recent research has shown that protein-like OM can mobilize Mn to a greater extent than humic forms. 83 This may mean that Mn could pose a potential problem in WDS 3, especially at the end of the network, where the retention times are longer, and the consumption of water is lower, and protein-like OM is prevalent, as per the evidence from our pipe scale characterization from WDS3 (Fig. 3).…”

Section: Discussionmentioning

confidence: 68%

Heavy metal, organic matter, and disinfection byproduct release from drinking water pipe scales under stagnant conditions

Kurajica

Bošnjak

Kinsela

et al. 2023

Environ. Sci.: Water Res. Technol.

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“…Fe and Mn were not detected in the surface water systems. This is mainly attributed to (i) dissolution of minerals during the filtration process and/or (ii) mixing of infiltrated water with the contaminated native groundwater (Abdelrady, 2020).…”

Section: Bank-filtrate Chemistrymentioning

confidence: 99%

The performance of bank filtration for water supply in semi-arid climate: Case Study in BaniMurr, Assiut, Egypt

Abdellatif¹,

Orabi

Sefelnasr

et al. 2022

Journal of Egyptian Academic Society for Environmental Developm

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Natural filtration is a process wherein surface water is filtered through the bank or bed of a river or lake. The process is referred as river/lake bank filtration (RBF/ LBF). Bank filtration has been shown to be effective in attenuating a wide variety of materials including turbidity, natural organic matter, pesticides, pharmaceuticals, taste and odor causing compounds and microorganisms etc. The RBF is considered as a classified and a low-cost treatment (or pretreatment) method.This study presents an attempt to explore the potential implementation sites for the RBF technology in a full-scale RBF plant located in BaniMurr-Assiut -Upper Egypt as section of the Nile valley to produce drinking water.To predict the quality characteristics of the BF, water samples were collected from pumping wells placed near the potential BF site and the surface water system. There are 4 extraction wells in the BF field, which are operated mutually. Other set of water samples were collected from two test wells situated at the potential BF field at 7 m and 15 m away from the Nile River, respectively. These water samples were collected once a week for duration of three months Quality measurements of physical, chemical, biological and microbiological characteristics were obtained. Comparison between the produced water with the surface and the natural background groundwater for the investigated plant has proven the effectiveness of RBF technique for potablewater supply in Upper Egypt under such hydrological and environmental conditions. However, there are some aspects that could restrict the BF efficacy and must therefore be considered during the design process. These include; i) over-pumping which increases the travel time and thus decrease the efficiency of treatment; ii) locating the wells near the surface water systems (<50 m) decreases the travel time to the limit (>10days) and thus could restrict the treatment capacity; iii) the consequences of lowering the surface water level can be regulated through the continuous operation of the wells.It was concluded that longer travel increases the potential for environmental anaerobic conditions. This enhances the reduction of undesirable and toxic elements (e.g., Fe, Mn, and As), and consequently has an adverse effect on the bank-filtrate quality. Based on these assumptions, a travel time of 10 to 50 days was regarded as acceptable.The identification of the correct position to install the BF wells is a critical factor for the successful application of the BF technique.The economic study ultimately demonstrated that BF is an economic and sustainable technique for implementation in BaniMurr City to address the demand for potable water.

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Characterisation of the impact of dissolved organic matter on iron, manganese, and arsenic mobilisation during bank filtration

Cited by 41 publications

References 49 publications

Mobilization of Arsenic and Other Naturally Occurring Contaminants during Managed Aquifer Recharge: A Critical Review

Mobilization of Arsenic and Other Naturally Occurring Contaminants during Managed Aquifer Recharge: A Critical Review

Heavy metal, organic matter, and disinfection byproduct release from drinking water pipe scales under stagnant conditions

The performance of bank filtration for water supply in semi-arid climate: Case Study in BaniMurr, Assiut, Egypt

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