Fate and Transport of Naproxen in a Sandy Aquifer Material: Saturated Column Studies and Model Evaluation

Teijón, Gloria; Candela, Lucila; Šimůnek, Jirka; Tamoh, Karim; Valdés-Abellán, Javier

doi:10.1080/15320383.2014.869194

Cited by 25 publications

(8 citation statements)

References 39 publications

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“…Also, the influence of the sediment type on transport behavior was studied and the following properties were found particularly crucial: Sediment grain size [17], available mineral surfaces [18], or total organic carbon content [19]. However, little is known on the impact of flow velocity on pharmaceutical transport in groundwater [20].The effect of pore-water velocity on contaminant transport has been presented in the literature, especially in the context of sorption/desorption studies [21][22][23], but also in degradation studies [24]. Increased flow velocity may increase biodegradation, if transport and not microbial degradation is limiting the scale of pore-water velocity.…”

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“…In the study of Pang et al (2002) [23], in which nonequilibrium transport of Cd, Zn, and Pb in gravel columns was examined, the pore-water velocity was found to be positively correlated with the partitioning coefficient, β, forward rate, and backward rate, and negatively correlated with the retardation factor, R, and mass transfer coefficient, ω. Grösbacher et al (2018) [24] studied toluene biodegradation in a flow-through system and observed a decrease in the maximum specific growth rate of microorganisms with increasing flow velocity. Teijón et al (2014) [20] investigated naproxen transport in columns filled with sandy aquifer material and found no significant influence of the flow velocity on sorption. The obtained residence times were insufficient to see any possible effect with higher pore water velocities.Besides the properties of the compound itself, transport mechanisms are dependent on the properties of the sorbate and also the properties of the groundwater [7].…”

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Column Experiments on Sorption Coefficients and Biodegradation Rates of Selected Pharmaceuticals in Three Aquifer Sediments

Kiecak

Breuer

Stumpp

2019

Water

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The presence of pharmaceuticals in the environment, and in groundwater, has been recognized as a great environmental concern. Biodegradation and sorption are the main processes leading to the removal of contamination from the water phase. The aim of this study was to determine the transport processes of selected pharmaceuticals (antipyrine, atenolol, carbamazepine, caffeine, diclofenac, ketoprofen, sulfamethoxazole) in selected sediments (coarse sand, medium sand, sandy loam) in laboratory experiments. Moreover, the impact of flow velocities on the sorption and degradation rates of the selected compounds was studied. Column experiments were performed at three flow velocities, under abiotic and biotic conditions, applying conservative (bromide) and reactive tracers (pharmaceuticals). From the breakthrough curves, retardation factors and degradation rates were determined and the influence of variable flow conditions on transport parameters was evaluated. Low observed concentrations and recoveries of atenolol indicated a strong influence of sorption on its transport. Diclofenac, caffeine, and carbamazepine were also affected by sorption but to a lesser extent. Sulfamethoxazole, ketoprofen, and antipyrine were recovered nearly completely, indicating an almost conservative transport behavior. Biodegradation was small for all the compounds, as the results from biotic and abiotic column experiments were similar. Transport of the tested pharmaceuticals was not influenced by different flow velocities, as similar modelled degradation rates and retardation factors were found for all tested flow velocities.often overlooked, which corresponds to ignoring the effect of different flow velocities on the fate of contaminants. Reducing the complexity at field sites, laboratory experiments in column studies can help to identify the specific sorption and biodegradation rates of pharmaceuticals.Column experiments are frequently used to study the transport of contaminants like micropollutants, such as pharmaceuticals [7]. Numerous studies have proven the usefulness of column experiments, as they are relatively fast, uncomplicated to manage, and their boundary conditions can be easily controlled. Moreover, different scenarios may be simulated, for example, managed aquifer recharge [8], seepage through the vadose zone [9], transport through an aquifer [10,11], and bank filtration [12][13][14].Column studies have been utilized to study the influence of physico-chemical conditions within an aquifer on pharmaceutical transport, with an emphasis on changes in pH [11], redox conditions [13,15], or temperature [16]. Also, the influence of the sediment type on transport behavior was studied and the following properties were found particularly crucial: Sediment grain size [17], available mineral surfaces [18], or total organic carbon content [19]. However, little is known on the impact of flow velocity on pharmaceutical transport in groundwater [20].The effect of pore-water velocity on contaminant transport has been presented in the literatur...

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Column Experiments on Sorption Coefficients and Biodegradation Rates of Selected Pharmaceuticals in Three Aquifer Sediments

Kiecak

Breuer

Stumpp

2019

Water

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“…Several studies have employed transport models and/or experimental investigations to determine the fate of a pollutant in soil and its possible contamination of surface or sub‐surface waters (Alemi, Goldhamer, & Nielsen, ; Hanna, Lassabatere, & Bechet, ; Mirbagheri & Monfared, ; Teijón, Candela, Šimůnek, Tamoh, & Valdes‐Abellán, ). These studies report huge variation in the transport or retention of the contaminants based on soil properties.…”

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Experimental investigation of groundwater contamination by surface sources: Determination of adsorption capacity, diffusion, and sorption potential of selected anions in different soils

Remya

Roshni

Yadav

et al. 2019

Environmental Quality Mgmt

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The present study investigated the fate and transport of two significant anions through soil to explore their potential as groundwater contaminants. The retention properties of chloride and sulfate in soils having several significantly different characteristics (soil-1 and soil-2) were determined using adsorption test and adsorption-diffusion column experiments. The maximum adsorption capacity of chloride was 3.7 and 1.16 mg/g, respectively, in soil-1 and soil-2, with organic matter (OM) content of 3.92% and 4.69%, respectively. The sulfate adsorption obtained was 24.09% and 13.83%, respectively, in the two soils. The anions exhibited monolayer adsorption in the soils with replacement of hydroxyl ions from soils as the major mechanism of adsorption. On the other hand, the adsorption capacities obtained from the adsorption-diffusion column experiment were about 100 times lower compared to that of the column tests of both of the soils. The maximum adsorption capacity of chloride was 0.03 mg/g and 0.01 mg/g, respectively, in soil-1 and soil-2, whereas that of sulfate was 0.04 mg/g and 0.03 mg/g. The empirical relation for depth of penetration (d) from a known spillage onto the soil surface was determined as a function of sorption capacity (S) and initial anion concentration (C) as d = 0.0073e (−57S) C and d = 0.0038e (−35S) C for chloride and sulfate, respectively. K E Y W O R D Sadsorption capacity, chloride, depth of penetration, diffusion, groundwater contamination, sulfate

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“…A group of organic micropollutants that have recently come into focus comprises the perfluoroalkyl and polyfluoroalkyl substances (PFASs), which seem to be developing into a problem contaminant around the world (Kotthoff et al, 2015;Simon, 2014). Organic micropollutants have been detected in all parts of the hydrological cycle, including rainwater (Fernández-González et al, 2014;Guidotti et al, 2000), surface waters (e.g., Bu et al, 2015;Buser et al, 1998;Gros et al, 2007;Kolpin et al, 2002;Loos et al, 2009;Ternes, 1998), groundwater (e.g., Barnes et al, 2008;Halling-Sorensen et al, 1998;Loos et al, 2010), and drinking water (e.g., Heberer, 2002;Kunacheva et al, 2010;Leal et al, 2010;Post et al, 2012;Stackelberg et al, 2004;Stan and Heberer, 1997).…”

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Use of column experiments to investigate the fate of organic micropollutants – a review

Banzhaf

Hebig

2016

Hydrol. Earth Syst. Sci.

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Abstract. Although column experiments are frequently used to investigate the transport of organic micropollutants, little guidance is available on what they can be used for, how they should be set up, and how the experiments should be carried out. This review covers the use of column experiments to investigate the fate of organic micropollutants. Alternative setups are discussed together with their respective advantages and limitations. An overview is presented of published column experiments investigating the transport of organic micropollutants, and suggestions are offered on how to improve the comparability of future results from different experiments. The main purpose of column experiments is to investigate the transport and attenuation of a specific compound within a specific sediment or substrate. The transport of (organic) solutes in groundwater is influenced by the chemical and physical properties of the compounds, the solvent (i.e., the groundwater, including all solutes), and the substrate (the aquifer material). By adjusting these boundary conditions a multitude of different processes and related research questions can be investigated using a variety of experimental setups. Apart from the ability to effectively control the individual boundary conditions, the main advantage of column experiments compared to other experimental setups (such as those used in field experiments, or in batch microcosm experiments) is that conservative and reactive solute breakthrough curves can be derived, which represent the sum of the transport processes. There are well-established methods for analyzing these curves. The effects observed in column studies are often a result of dynamic, non-equilibrium processes. Time (or flow velocity) is an important factor, in contrast to batch experiments where all processes are observed until equilibrium is reached in the substrate-solution system. Slight variations in the boundary conditions of different experiments can have a marked influence on the transport and degradation of organic micropollutants. This is of critical importance when comparing general results from different column experiments investigating the transport behavior of a specific organic compound. Such variations unfortunately mean that the results from most column experiments are not transferable to other hydrogeochemical environments but are only valid for the specific experimental setup used. Column experiments are fast, flexible, and easy to manage; their boundary conditions can be controlled and they are cheap compared to extensive field experiments. They can provide good estimates of all relevant transport parameters. However, the obtained results will almost always be limited to the scale of the experiment and are not directly transferrable to field scales as too many parameters are exclusive to the column setup. The challenge for the future is to develop standardized column experiments on organic micropollutants in order to overcome these issues.

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Fate and Transport of Naproxen in a Sandy Aquifer Material: Saturated Column Studies and Model Evaluation

Cited by 25 publications

References 39 publications

Column Experiments on Sorption Coefficients and Biodegradation Rates of Selected Pharmaceuticals in Three Aquifer Sediments

Column Experiments on Sorption Coefficients and Biodegradation Rates of Selected Pharmaceuticals in Three Aquifer Sediments

Experimental investigation of groundwater contamination by surface sources: Determination of adsorption capacity, diffusion, and sorption potential of selected anions in different soils

Use of column experiments to investigate the fate of organic micropollutants – a review

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