Sorption/desorption of non-hydrophobic and ionisable pharmaceutical and personal care products from reclaimed water onto/from a natural sediment

Martínez-Hernández, Virtudes; Meffe, Raffaella; Herrera, Sonia; Arranz, Elena; Bustamante, Irene de

doi:10.1016/j.scitotenv.2013.11.036

Cited by 125 publications

(57 citation statements)

References 50 publications

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“…Besides this, sorption onto suspended particulate matter or sediments can occur. High distribution coefficients (k d ) were observed in other studies for CAF (17.9-250 L kg −1 ), ATN (8.1 L kg −1 ), and NPX (1.9 L kg −1 ), although for PAR sorption is reported to be negligible (k d 0.5-2.8 L kg −1 ) (Lin et al 2010;Martínez-Hernández et al 2014;Yamamoto et al 2009). …”

Section: Spatiotemporal Distributionmentioning

confidence: 73%

A 3-year study on occurrence of emerging contaminants in an urban stream of São Paulo State of Southeast Brazil

Campanha

Awan

Sousa

et al. 2014

Environ Sci Pollut Res

154

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This manuscript reports a 3-year study on occurrence of pharmaceuticals, hormones, and triclosan in surface waters of a central urban region of São Paulo State of Southeast Brazil (the Monjolinho River in São Carlos). Water samples collected once at every 2 months were pre-concentrated by solid-phase extraction (SPE) and analyzed by liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). The most frequently detected compounds in higher concentrations were caffeine, paracetamol, and atenolol (maximum concentrations 129,585, 30,421, and 8199 ng L(-1), respectively), while hormones estrone and 17-β-estradiol were the least detected, in levels up to 14.8 ng L(-1). There was an increasing trend in concentrations of most of the compounds along the river course, especially downstream of the river where there is discharge of both wastewater treatment plant effluent and raw sewage from a particular region of São Carlos city. Concentrations of contaminants were higher during dry periods as a result of decline in the water levels. Decrease in concentrations near the river mouth occurred to different extents for each compound. It was high for caffeine and atenolol, but was very low for carbamazepine and diclofenac. The present study reports the first data about the occurrence of some major emerging contaminants in the Monjolinho River. Besides its regional significance, this work may assist in composing a dataset for water contamination diagnosis focusing on emerging contaminants, both in the Brazilian as well as in the Global studies related to aquatic ecosystems. Such datasets can be helpful for making future public policies on water quality, since these compounds are not yet legally regulated.

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Section: Spatiotemporal Distributionmentioning

confidence: 73%

A 3-year study on occurrence of emerging contaminants in an urban stream of São Paulo State of Southeast Brazil

Campanha

Awan

Sousa

et al. 2014

Environ Sci Pollut Res

154

View full text Add to dashboard Cite

show abstract

“…The main suggested sorption mechanisms of atenolol in the literature are electrochemical interaction and ion exchange [29,41,49,50] and could be via charge transfer interaction due to the structure of the molecule, with its electron donor atoms (two nitrogen atoms and one oxygen form OH group) or hydrogen bonding interaction [49,56]. Schaffer et al [41] found that 99% of the total sorption of atenolol was by cation exchange interaction.…”

Section: Suggested Mechanisms Of Interactionmentioning

confidence: 99%

“…the octanol-water partitioning coefficients (Kow)), the sorption of pharmaceuticals, which are typically ionisable compounds, to environmental solids is thought to be through a combination of interactions e.g. hydrogen bonds, electrostatic interactions, ionic exchange and hydrophobic interactions [26][27][28][29][30]. Moreover, while the organic carbon content (OC) of sediments is known to be important in explaining the differences in the sorption behaviour of a neutral organic chemical across different soil or sediment types, factors such as the solid phase component (clay and metal content), surface exchangeable cations and pH probably play an important role in determining sorption of ionisable compounds [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Impacts of compound properties and sediment characteristics on the sorption behaviour of pharmaceuticals in aquatic systems

Al-Khazrajy

Boxall

2016

Journal of Hazardous Materials

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Sorption is a key factor in determining the persistence, attenuation and bioavailability of sediment-associated contaminants. However, our understanding of the sorption behaviour of pharmaceuticals in sediments is poor. In this study, we investigated the sorption behaviour of a diverse set of pharmaceuticals in a range sediment types. Sorption affinity of pharmaceuticals for all sediments was found to increase in the order mefenamic acid < cimetidine < atenolol < amitriptyline < diltiazem. Comparison of the experimental observations with predictions from an existing model for estimating sorption revealed the model worked poorly for the study pharmaceuticals. Multiple linear regression analysis was therefore used to develop new models for estimating sorption of individual pharmaceuticals based on sediment properties. The analyses indicated that sorption is related to properties such as Log Dow of a compound in the the sediment (lipophilicity corrected for the sediment pH), cation exchange capacity, clay%, organic carbon content and exchangeable Ca 2+ , although, with the exception of atenolol, robust relationships between sediment properties and sorption were not obtained. Overall, the results demonstrate how complex the processes are that drive the sorption of pharmaceuticals in sediments and highlight the need for generation of further experimental data and further model development work.

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“…The ultimate fate of organic micropollutants in the aquatic environment is a current environmental issue (Loffler et al 2005;Shareef et al 2006;Styszko et al 2010;Caldwell et al 2014;Martínez-Hernández et al 2014). Sorption of organic micropollutants is determined by different factors: the chemical nature of micropollutants, the ionization state, water solubility, the properties of the sorbent and temperature.…”

Section: Introductionmentioning

confidence: 99%

Sorption of emerging organic micropollutants onto fine sediments in a water supply dam reservoir, Poland

Styszko¹

2015

J Soils Sediments

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Purpose Sorption studies of organic micropollutants to sediments are useful for predicting their fate and transport. They allow for a better understanding of the migration of contaminants through environmental media, the exposure of aquatic organisms to such chemical and their affect on human health. Materials and methods This study examined the sorption of carbamazepine, ketoprofen, diclofenac, bisphenol A and triclosan onto sediments sampled along a dam reservoir. The sediments differed in structure, chemical composition and particle size distribution. The potential effect on the quality of drinking water through the removal of micropollutants by sorption was also estimated. Results and discussion Sorption isotherms of micropollutants were constructed at pH 7.6 on three natural sediments. The sorption points were determined by measuring the concentrations of analytes in both the solution and sediment samples. The results of partitioning coefficients suggest that triclosan (187.5-1248.5 μg 1-1/n l 1/n kg −1 ) and bisphenolA (11.4-51.0 μg 1-1/n l 1/n kg −1 ) exhibited relatively higher sorption, whereas ketoprofen (1.3-2.0 l kg −1 ), diclofenac (4.8-5.5 l kg −1 ) and carbamazepine (2.9-5.5 l kg −1 ) did not sorb to the studied sediments. The affinity of all micropollutants was higher for the finest sediment with the highest content of organic carbon and clay minerals, collected in the deepest part of the reservoir near the water intake. ConclusionsThe low values of partitioning coefficients suggest that all of the tested micropollutants, except triclosan, are predominantly freely dissolved, which can have an adverse effect on the quality of drinking water.

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Sorption/desorption of non-hydrophobic and ionisable pharmaceutical and personal care products from reclaimed water onto/from a natural sediment

Cited by 125 publications

References 50 publications

A 3-year study on occurrence of emerging contaminants in an urban stream of São Paulo State of Southeast Brazil

A 3-year study on occurrence of emerging contaminants in an urban stream of São Paulo State of Southeast Brazil

Impacts of compound properties and sediment characteristics on the sorption behaviour of pharmaceuticals in aquatic systems

Sorption of emerging organic micropollutants onto fine sediments in a water supply dam reservoir, Poland

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