‘An investigation into the occurrence and removal of pharmaceuticals in Colombian wastewater’

Botero-Coy, Ana María; Martínez-Pachón, Diana; Boix, Clara; Rincón, R.J.; Castillo, Nicolás Reyes; Arias-Marín, Lida; Losada, Lis Manrique; Torres-Palma, Ricardo A.; Moncayo-Lasso, Alejandro; Hernández, Félix

doi:10.1016/j.scitotenv.2018.06.088

Cited by 218 publications

(104 citation statements)

References 73 publications

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“…Regarding the selected analytical problem, pharmaceutical products have become a persistent contaminant, whose distribution profiles in different water compartments are season and location dependent [40][41][42][43]. Evaluation and understanding of this emerging contaminant's fate and behavior has gained momentum in recent years [44,45]. In this context, a detailed comparison with other published methodological alternatives is presented in Table 3, divided in two great families, steroid hormones [46][47][48][49][50] and NSAIDs [44,[51][52][53].…”

Section: Comparison With Other Microextraction Alternativesmentioning

confidence: 99%

Application of Switchable Hydrophobicity Solvents for Extraction of Emerging Contaminants in Wastewater Samples

et al. 2019

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In the present work, the effectiveness of switchable hydrophobicity solvents (SHSs) as extraction solvent (N,N-Dimethylcyclohexylamine (DMCA), N,N-Diethylethanamine (TEA), and N,N-Benzyldimethylamine (DMBA)) for a variety of emerging pollutants was evaluated. Different pharmaceutical products (nonsteroidal anti-inflammatory drugs (NSAIDs), hormones, and triclosan) were selected as target analytes, covering a range of hydrophobicity (LogP) of 3.1 to 5.2. The optimized procedure was used for the determination of the target pharmaceutical analytes in wastewater samples as model analytical problem. Absolute extraction recoveries were in the range of 51% to 103%. The presented method permits the determination of the target analytes at the low ng mL−1 level, ranging from 0.8 to 5.9 (except for Triclosan, 106 ng mL−1) with good precision (relative standard deviation lower than 6%) using high-pressure liquid chromatography (HPLC) combined with ultraviolet (DAD) and fluorescence (FLR) detection. The microextraction alternative resulted in a fast, simple, and green method for a wide variety of analytes in environmental water sample. The results suggest that this type of solvent turns out to be a great alternative for the determination of different analytes in relatively complex water samples.

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Section: Comparison With Other Microextraction Alternativesmentioning

confidence: 99%

Application of Switchable Hydrophobicity Solvents for Extraction of Emerging Contaminants in Wastewater Samples

et al. 2019

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“…The main characteristics are the risk associated with exposure even at low concentrations and persistence in the environment without any established legislation for their control. 1 Among them, the most prominent are pharmaceutical compounds, particularly antibiotics. Antibiotics are extensively used in human and animal therapy, followed by their excretion, which is an important source of the pollutants in surface water, groundwater and soil.…”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8] Currently, there is great concern about multi-resistant bacteria occurring in wastewater treatment plants (WWTPs), since these units were not designed to remove ECs and provide an environment that is favorable for microorganism multiplication. 1,2,6,[9][10][11][12] It is known from the literature 2,13-17 that pharmaceutical compounds may be partially degraded (producing more toxic sub-products) or may remain unchanged during conventional treatment in WWTPs and then be released into water bodies. Within this perspective, ciprooxacin (CIP) has received great attention owing to its multi-resistant bacteria effect.…”

Section: Introductionmentioning

confidence: 99%

Simple, fast and environmentally friendly method to determine ciprofloxacin in wastewater samples based on an impedimetric immunosensor

et al. 2020

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In this study an impedimetric immunosensor was developed in order to determine ciprofloxacin (CIP) in wastewater samples, an emergent contaminant widely found in wastewater. To achieve this, an anticiprofloxacin antibody was immobilized on the surface of a printed carbon electrode. Then, the developed immunosensor was applied in wastewater samples from Université Laval residences (Québec, Canada) through the load transfer resistance (R ct ) using [Fe(CN) 6 ] 3À/4À as a redox probe, and the average CIP concentration was found to be 2.90 Â 10 À4 mg mL À1 . The observed R ct changes presented a linear relationship from CIP concentrations of 10 À5 to 1.0 mg mL À1 , with detection and quantification limits of 2.50 Â 10 À6 and 7.90 Â 10 À6 mg mL À1 , respectively. The immunosensor presented high selectivity and repeatability, as well as a good recovery rate in wastewater samples (97%). Significant interference with other compounds was not observed. The proposed method requires only 30 mL of sample without the use of organic solvents or preceding sample preparation and/or extraction techniques. Moreover, the method is fast: only 20 min of incubation followed by 2 min of analysis time was sufficient to obtain the CIP concentration. The method's estimated cost is U$ 2.00 per sample.

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“…It is eliminated through urine (60%) without alterations. Concentrations of between 0.047 and 3.35 µg L –1 of ciprofloxacin have been reported in wastewater …”

Section: Introductionmentioning

confidence: 99%

“…Concentrations of between 0.047 and 3.35 μg L -1 of ciprofloxacin have been reported in wastewater. 5,8,20,22,23 Only a few studies have reported the removal of metformin and ciprofloxacin from wastewater using biological processes. Trautwein and Kümmerer 14 studied metformin removal in an aerobic suspended growth treatment process obtaining a removal of 51.3%.…”

Section: Introductionmentioning

confidence: 99%

Assessment of a Ficus benjamina wood chip‐based aerated biofilter used for the removal of metformin and ciprofloxacin during domestic wastewater treatment

García‐Sánchez

Gutiérrez‐Macías

Estrada‐Arriaga

2019

J of Chemical Tech & Biotech

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BACKGROUND Several studies have demonstrated that the pharmaceuticals detected in the influents and effluents of wastewater treatment plants (WWTPs) can cause endocrine disruption and bacterial resistance on different species, in an aquatic environment. Metformin (antidiabetic drug) and ciprofloxacin (antibiotic quinolones) are compounds found at higher concentrations than many other pharmaceuticals, and thus have a disproportionately large environmental impact. This study is focused on the assessment of an aerated biofilter packed with Ficus benjamina wood chips for the simultaneous removal of metformin, ciprofloxacin, organic matter expressed as chemical oxygen demand (COD) and ammoniacal nitrogen (NH3‐N) during domestic wastewater treatment, under different superficial hydraulic loading. RESULTS The maximum removals of metformin, ciprofloxacin, COD and NH3‐N from the wastewater treated in an aerated biofilter were 94, 81, 91 and 38%, respectively, by applying a superficial hydraulic loading of 0.18 m3 m–2 d–1 [hydraulic retention time (HRT) of 7 h]. The adsorption capacity of F. benjamina wood chips on the metformin and ciprofloxacin was 0.1 and 2.03 µg gsupport material–1, respectively. CONCLUSION The maximum removal rates for metformin, ciprofloxacin, COD and NH3‐N were obtained when the aerated biofilter was operated at HRT = 7 h. The F. benjamina wood chips showed sorption properties of pharmaceuticals. According to a scanning electron microscopy image, the F. benjamina wood chips showed available pores in their entire surface, thus indicating that this organic support medium has a high potential for carrying out the sorption processes. Likewise, the surface of the wood chips showed the development of a homogeneous biofilm. © 2019 Society of Chemical Industry

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‘An investigation into the occurrence and removal of pharmaceuticals in Colombian wastewater’

Cited by 218 publications

References 73 publications

Application of Switchable Hydrophobicity Solvents for Extraction of Emerging Contaminants in Wastewater Samples

Application of Switchable Hydrophobicity Solvents for Extraction of Emerging Contaminants in Wastewater Samples

Simple, fast and environmentally friendly method to determine ciprofloxacin in wastewater samples based on an impedimetric immunosensor

Assessment of a Ficus benjamina wood chip‐based aerated biofilter used for the removal of metformin and ciprofloxacin during domestic wastewater treatment

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