Fate of leaf litter deposits and impacts on oxygen availability in bank filtration column studies

Bayarsaikhan, Uranchimeg; Filter, Josefine; Gernert, Ulrich; Jekel, Martin; Ruhl, Aki Sebastian

doi:10.1016/j.envres.2018.03.033

Cited by 9 publications

(7 citation statements)

References 24 publications

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“…Column studies have investigated the influence of POM in sediments and in form of leave litter deposition on redox conditions and TOrC removal in natural sand filter systems (Bayarsaikhan et al 2018 ; Filter et al 2017 ). Accumulated algae biomass managed aquifer recharge was mainly considered to describe the formation of the clogging layer.…”

Section: Introductionmentioning

confidence: 99%

Impacts of autochthonous particulate organic matter on redox-conditions and elimination of trace organic chemicals in managed aquifer recharge

Filter

Ermisch

Ruhl

et al. 2023

Environ Sci Pollut Res

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Autochthonous carbon fixation by algae and subsequent deposition of particulate organic matter can have significant effects on redox conditions and elimination of trace organic chemicals (TOrCs) in managed aquifer recharge (MAR). This study investigated the impacts of different algae loadings (0–160 g/m2) and infiltration rates (0.06–0.37 m/d) on overall oxygen consumption and elimination of selected TOrCs (diclofenac, formylaminoantipyrine, gabapentin, and sulfamethoxazole) in adapted laboratory sand columns. An infiltration rate of 0.37 m/d in conjunction with an algae load of 80 g/m2 (dry weight) sustained oxic conditions in the sand bed and did not affect the degradation of TOrCs. Thus, the availability of easily degradable organic carbon from algae did not influence the removal of TOrCs at an influent concentration of 1 µg/L. In contrast, a lower infiltration rate of 0.20 m/d in combination with a higher algae loading of 160 g/m2 caused anoxic conditions for 30 days and significantly impeded the degradation of formylaminoantipyrine, gabapentin, sulfamethoxazole, and diclofenac. Especially the elimination of gabapentin did not fully recover within 130 days after pulsed algae deposition. Hence, measures like micro-sieving or nutrient control are required at bank filtration or soil aquifer treatment sites with low infiltration rates.

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Section: Introductionmentioning

confidence: 99%

Impacts of autochthonous particulate organic matter on redox-conditions and elimination of trace organic chemicals in managed aquifer recharge

Filter

Ermisch

Ruhl

et al. 2023

Environ Sci Pollut Res

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“…Determination of the carbon budget expanded the results of Jylhä‐Ollila et al (2020) by providing a more complete quantification of the degradable and residual organic C, as well as the main inorganic C mass fluxes in bank infiltration with a retention time of several months. Earlier research demonstrated that degradation of particulate organic matter in the lake or river sediment and the subsequent additional oxygen consumption can have a major impact on groundwater quality in bank infiltration (e.g., Diem et al 2013; Regnery et al 2017; Bayarsaikhan et al 2018; Hellauer et al 2019). At the Iso Tiilijärvi study site, the calculation of the carbon budget provided a quantitative estimate of the amount of organic matter degradation in the lake sediment.…”

Section: Discussionmentioning

confidence: 99%

“…NOM mineralization in the infiltrating lake water consumes oxygen in the aquifer, which impacts the redox conditions and easily leads to anoxic groundwater. Degradation of particulate organic matter (such as plant litter) in lake or river bottom sediment causes additional oxygen consumption at the beginning of the flow path of the infiltrating water (e.g., Diem et al 2013; Regnery et al 2017; Bayarsaikhan et al 2018; Hellauer et al 2019). Oxygen depletion is undesirable, as anoxic conditions lead to reductive dissolution of Fe and Mn minerals from the soil material, which is a common quality problem in drinking water (e.g., Massmann et al 2006; Grishenk and Paufler 2017).…”

Section: Introductionmentioning

confidence: 99%

Carbon Budget and Molecular Structure of Natural Organic Matter in Bank Infiltrated Groundwater

et al. 2021

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Managed aquifer recharge (MAR) provides means to remove natural organic matter (NOM) from surface waters. Recent studies have explored the degree of NOM removal in groundwater. In this study, we further elaborate the NOM removal at a lakeside natural bank infiltration site that functions as a surrogate for MAR. Our objective was to quantify the carbon budget in the aquifer based on concentration measurements of dissolved (in)organic carbon, and the molecular changes in NOM using Fourier transform ion cyclotron resonance mass spectrometry (FT‐ICR MS). According to the carbon budget, only 25% of the dissolved carbon entering the aquifer was organic, and it predominantly originated from lake water. Of the inorganic majority, on average 40% was produced in the vadose zone above the groundwater table, 31% in the lake bank, 22% in the aquifer as a result of degrading organic matter of lake water, and 7% in the lake. Seasonal concentration variations suggested that the lake bank was the main carbon source in the summer, increasing the carbon concentration of infiltrating lake water, that is, 3.0 mg/L to 7.9 mg/L. FT‐ICR MS results showed 4960 to 5330 individual compounds in lake and groundwater. NOM removal in the aquifer was selective: the relative abundance of oxygen‐containing species decreased from 75 to 31%, while the relative abundance of sulfur‐containing species increased from 15 to 57%. The average molecular weights of both species remained unchanged. The study highlighted the role of lake bank processes and sulfur‐containing species in groundwater quality.

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“…The infiltration of oxic surface water can also oxidise upper parts of the sediments, especially during periods of high photosynthetic activity of primary producers in the surface water, but studies comparing sediment surface oxygen concentrations with and without IBF are mostly lacking. One exception being Bayarsaikhan et al [128] who reproduced IBF processes in a laboratory setting and found that degradation of particulate organic carbon (POC) in the form of small pieces of leaf litter consumed almost all oxygen in the sediments.…”

Section: Sediment Characteristicsmentioning

confidence: 99%

Potential Impacts of Induced Bank Filtration on Surface Water Quality: A Conceptual Framework for Future Research

Gillefalk

Massmann

Nützmann

et al. 2018

Water

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Studies on induced bank filtration (IBF), a cost-effective and reliable drinking water production method, usually focus on processes affecting the target drinking water quality. We aim to expand this view by assessing potential impacts of IBF on surface water quality. We suggest that IBF can directly and indirectly affect several physical, chemical and biological processes in both the sediment and open water column, eventually leading to positive or negative changes in source water quality. Direct effects of IBF comprise water level fluctuations, changes in water level and retention time, and in organic content and redox conditions in littoral sediments. Indirect effects are mainly triggered by interrupting groundwater discharge into the surface water body. The latter may result in increased seasonal temperature variations in sediment and water and reduced discharge of solutes transported by groundwater such as nutrients and carbon dioxide. These changes can have cascading effects on various water quality, e.g., by facilitating toxic phytoplankton blooms. We propose investigating these potential effects of IBF in future field and laboratory studies to allow for more detailed insights into these yet unknown effects and their magnitude in order to assure a sustainable application of this valuable technique in the future.

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Fate of leaf litter deposits and impacts on oxygen availability in bank filtration column studies

Cited by 9 publications

References 24 publications

Impacts of autochthonous particulate organic matter on redox-conditions and elimination of trace organic chemicals in managed aquifer recharge

Impacts of autochthonous particulate organic matter on redox-conditions and elimination of trace organic chemicals in managed aquifer recharge

Carbon Budget and Molecular Structure of Natural Organic Matter in Bank Infiltrated Groundwater

Potential Impacts of Induced Bank Filtration on Surface Water Quality: A Conceptual Framework for Future Research

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