Removal of pharmaceuticals from a WWTP secondary effluent by ultrafiltration/reverse osmosis followed by electrochemical oxidation of the RO concentrate

Urtiaga, Ane; Pérez, Gema; Ibáñez, Raquel; Ortiz, Inmaculada

doi:10.1016/j.desal.2013.10.010

Cited by 194 publications

(80 citation statements)

References 74 publications

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“…31 Concentrations of 1.6 -238 μg/L of paraxanthine were observed in wastewaters in northeastern Spain, 13 and paraxanthine was detected at 11.8 μg/L in wastewater influent. 16 These results showed that the concentration level of caffeine derivatives in Japan was similar to that in Italy and Spain. The concentration fluctuation of caffeine derivatives could be attributed to water quality in the influent.…”

Section: Application To Wastewater Samplessupporting

confidence: 64%

“…11 Caffeine metabolites were well studied in previous studies on human metabolism, and a few studies reported several caffeine metabolites such as theophylline and paraxanthine in wastewater influents and effluents. [12][13][14][15][16][17] In addition, the occurrence of theobromine was reported in natural water. 18 In Japan, caffeine and theophylline have been widely detected in wastewater, 19,20 but no study has evaluated the occurrence of other caffeine metabolites in the water environment.…”

Section: Introductionmentioning

confidence: 99%

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Determination of Caffeine and Its Metabolites in Wastewater Treatment Plants Using Solid-Phase Extraction and Liquid Chromatography–Tandem Mass Spectrometry

Echigo

Itoh

2018

ANAL. SCI.

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For caffeine and its seven major metabolites (i.e., theobromine, theophylline, paraxanthine, 1-methylxanthine, 3-methylxanthine, 7-methylxanthine, and xanthine), an optimized analytical method using liquid chromatography-tandem mass spectrometry (LC-MS/MS) for their detection in wastewater samples was developed in this study. Extraction of these compounds (recoveries ranged from 60.3 to 83.2%) was made possible by combining universal polymeric reversedphase cartridge and polymeric strong cation exchange cartridge. This method was applied to the determination of caffeine and its metabolites in the influent and effluent of an anaerobic-anoxic-oxic (A2O) process. In the A2O influent, caffeine and its metabolites (except xanthine) ranged from 1.39 to 5.45 μg/L, and their concentrations in the A2O effluent ranged from 10.2 to 171.3 ng/L. The mass load of caffeine was 14.9 g/day/1000 inhabitants, considering the population served by the target wastewater treatment plant (WWTP). The concentration of caffeine derivatives in wastewater influent is a tool for estimating the population size in the area served by WWTPs.

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Section: Application To Wastewater Samplessupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Determination of Caffeine and Its Metabolites in Wastewater Treatment Plants Using Solid-Phase Extraction and Liquid Chromatography–Tandem Mass Spectrometry

Echigo

Itoh

2018

ANAL. SCI.

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“…A number of promising wastewater treatment technologies have been used for removing CIPRO from wastewater, such as sorption and adsorption (Wu et al, 2010;Jiang et al, 2013a;Rakshit et al, 2013;Genç et al, 2013;Wu et al, 2013), membrane separation (Sun et al, 2011;Zaviska et al, 2013;Urtiaga et al, 2013), ozonation, oxidation and other photocatalytic degradation processes (De Witte et al, 2009;Vasconcelos et al, 2009;De Witte et al, 2010;Jiang et al, 2012;Jiang et al, 2013b;Zhou and Jiang, 2015). Notwithstanding the differences between degradation mechanisms of these oxidation processes, the byproducts formed may be the same, or at least, similar to each other (Vasconcelos et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…However, degradation products can be more toxic than the parent compound or they can still have the same features as the parent compound (De Witte et al, 2010). Nanofiltration (NF) and reverse osmosis (RO) processes are proper for the effective removal of a variety of micropollutants such as pharmaceuticals, personal care products, endocrine disrupting compounds and hormones (Comerton et al, 2008;Kimura et al, 2009;Urtiaga et al, 2013;Sadmani et al, 2014). Nevertheless NF process which is more economical than RO due to its lower operating pressures which will lead to less energy consumption (Swamy et al, 2013;Ravikumar et al, 2014) has shown more effective removal for low-molecular-weight compounds, predicting their rejection has posed challenges due to the fact that multiple mechanisms including adsorption, steric-hindrance effects, and electrostatic effects can be involved in this concurrently controlled removal (Shah et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Investigation of ciprofloxacin removal from aqueous solution by nanofiltration process

2016

Issue 2

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This study investigated the removal of ciprofloxacin (CIPRO) from aqueous solution at a concentration of 10 mg l -1 and the permeate flux behavior during dead-end stirred-cell filtration system using six type of commercially available loose and tight NF membranes (NP010, NP030, NF90, NF270, CK3001 and DS-5DK). The rejection of CIPRO and permeate flux value were evaluated according to the effects of different parameters such as volume reduction factor (VRF), membrane type, transmembrane pressure (TMP) and pH. Contact angle and SEM measurements were also performed for the analysis of the pollution occurring in the pores and on the surfaces of the membranes. Filtration experiments for all membranes used indicated that the flux reached the steady state at VRF 3. CIPRO rejection was found to vary especially with both pH and membrane tightness. Despite the fact that, the loose NF membranes showed poor and variable CIPRO removal, the highest rejection was obtained with NF90 tight membrane at the original pH value (pH 5.65) and 10 bar of applied pressure. NF90 membrane achieved 98.3% TOC, 98.9% COD, 96.9% TDS and 95.7% Ec rejections at 24.39 l m -2 h -1 permeate flux at the predefined operating conditions.

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“…Moreover, coupling processes using a step to preconcentrate the micropollutants, followed by the electro-oxidation with the BDD anode were performed for the treatment of real wastewater. Urtiaga's group carried out a pilot system that integrated ultrafiltration (UF), reverse osmosis (RO) and electrochemical oxidation (EO) of effluents from wastewater treatment plants [19,20]. A group of 12 pharmaceutical products was selected to monitor their degradation by the coupling processes.…”

Section: Introductionmentioning

confidence: 99%

On the role of salts for the treatment of wastewaters containing pharmaceuticals by electrochemical oxidation using a boron doped diamond anode

Lan

Coetsier

Causserand

et al. 2017

Electrochimica Acta

146

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao. Refractory pharmaceuticals remain in biologically treated wastewater and are continuously discharged into aquatic systems due to their limited biodegradability. Electrochemical oxidation is promising for the treatment of such refractory compounds, in particular using a boron doped diamond (BDD) anode. This study investigates the role of salts, such as sulfates and chlorides in the electrochemical treatment of wastewater. The presence of sulfates accelerated the removal of ciprofloxacin and sulfamethoxazole, but had no effect on the oxidation of salbutamol. This comparison highlights the selectivity of the reaction between organics and sulfate radicals. The addition of chlorides into the solution led to a remarkablyfaster degradation of ciprofloxacin. However, incomplete mineralization was observed at high current densities due to the significant formation of halogenated organic compounds (AOX). The formation of refractory and toxic compounds such as ClO 4 À and AOX can be limited under the control of (i) applied current intensity and (ii) duration of electrolysis. Electrochemical oxidation of concentrated biologicallytreated hospital wastewater investigated the excellent removal of biorefractory pharmaceuticals and confirmed the acceleration effect of salts on pharmaceutical degradation.

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Removal of pharmaceuticals from a WWTP secondary effluent by ultrafiltration/reverse osmosis followed by electrochemical oxidation of the RO concentrate

Cited by 194 publications

References 74 publications

Determination of Caffeine and Its Metabolites in Wastewater Treatment Plants Using Solid-Phase Extraction and Liquid Chromatography–Tandem Mass Spectrometry

Determination of Caffeine and Its Metabolites in Wastewater Treatment Plants Using Solid-Phase Extraction and Liquid Chromatography–Tandem Mass Spectrometry

Investigation of ciprofloxacin removal from aqueous solution by nanofiltration process

On the role of salts for the treatment of wastewaters containing pharmaceuticals by electrochemical oxidation using a boron doped diamond anode

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