Application of solar AOPs and ozonation for elimination of micropollutants in municipal wastewater treatment plant effluents

Prieto-Rodríguez, L.; Oller, Isabel; Klamerth, Nikolaus; Agüera, Ana; Rodrı́guez, Eva M.; Malato, Sixto

doi:10.1016/j.watres.2012.11.002

Cited by 260 publications

(92 citation statements)

References 30 publications

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“…Warfarine (anticoagulant), clopidrogel (antiplatelet agent), propranolol (beta-blocker), hydrochlorothiazide (diuretic) and fluoxetine (antidepressant) were normally detected at low concentrations, and even so they were generally poorly removed. The concentrations found in the WWTP effluents were similar to those reported by Prieto-Rodríguez et al [31] in downstream effluents from the secondary biological treatment of a municipal WWTP (Spain), except for azithromycin and clarithromycin, which were approximately ten fold lower in that report. Another study reporting several pharmaceuticals from different therapeutic classes and some pesticides in the outlet of a secondary clarifier of WWTP located also in Spain, reported levels of concentrations similar to the present report for some compounds (e.g., ibuprofen, metoprolol, propranolol, sulfamethoxazole), whereas diclofenac, bezafibrate and carbamazepine were quantified at lower concentrations [16].…”

Section: Quantification Of Micropollutants In Wwtp Effluents Before Asupporting

confidence: 89%

Environmental friendly method for urban wastewater monitoring of micropollutants defined in the Directive 2013/39/EU and Decision 2015/495/EU

Ribeiro

Pedrosa

Moreira

et al. 2015

Journal of Chromatography A

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Section: Quantification Of Micropollutants In Wwtp Effluents Before Asupporting

confidence: 89%

Environmental friendly method for urban wastewater monitoring of micropollutants defined in the Directive 2013/39/EU and Decision 2015/495/EU

Ribeiro

Pedrosa

Moreira

et al. 2015

Journal of Chromatography A

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“…Among AOPs, the solar photo-Fenton process has proved to be efficient in the removal of micropollutants from municipal effluents . Prieto-Rodríguez et al (2013) evaluated the effectiveness of ozonation, solar heterogeneous photocatalysis with TiO 2 , and solar photo-Fenton as tertiary treatments for the remediation of micropollutants in municipal wastewater treatment plant effluents at a pilot-plant scale. They concluded that the solar photo-Fenton process was the most efficient for…”

Section: Introductionmentioning

confidence: 99%

Ecotoxicity evaluation of a WWTP effluent treated by solar photo-Fenton at neutral pH in a raceway pond reactor

Freitas

Rivas

Campos-Mañas

et al. 2016

Environ Sci Pollut Res

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Some pollutants can be resistant to wastewater treatment, hence becoming a risk to aquatic and terrestrial biota even at the very low concentrations (ng L-μg L) they are commonly found at. Tertiary treatments are used for micropollutant removal but little is known about the ecotoxicity of the treated effluent. In this study, a municipal secondary effluent was treated by a solar photo-Fenton reactor at initial neutral pH in a raceway pond reactor, and ecotoxicity was evaluated before and after micropollutant removal. Thirty-nine micropollutants were identified in the secondary effluent, mainly pharmaceuticals, with a total concentration of ≈80 μg L. After treatment, 99 % microcontaminant degradation was reached. As for ecotoxicity reduction, the assayed organisms showed the following sensitivity levels: Tetrahymena thermophila > Daphnia magna > Lactuca sativa > Spirodela polyrhiza ≈ Vibrio fischeri. The initial effluent showed an inhibitory effect of 40 % for T. thermophila and 20 % for D. magna. After 20 min of photo-Fenton treatment, no toxic effect was observed for T. thermophila and toxicity dropped to 5 % for D. magna. Graphical abstract Ecotoxicity removal by solar photo-Fenton at neutral pH. ᅟ.

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“…According to them, the system showed great potential in the removal of low levels of PPCPs and EDCs when compared to homogeneous Fenton's, photo-Fenton's, electro-Fenton's, and photocatalysis on TiO 2 . Solar photo-Fenton and solar TiO 2 photocatalysis were studied at pilot scale as tertiary treatments for the remediation of 66 microcontaminants present in municipal WWTP effluents by Prieto-Rodríguez et al [70]. Photo-Fenton (pH 2.8) achieved 90% of microcontaminant elimination in short reaction times using 5 mg Fe 2+ /L and 60 mg H 2 O 2 /L.…”

Section: Water Reclamation: Full-and Pilot-scale Applicationmentioning

confidence: 99%

Treatment Technologies for Wastewater Reuse: Fate of Contaminants of Emerging Concern

González

Bayarri

Aceña

et al. 2015

The Handbook of Environmental Chemistry

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The presence of thousands of microcontaminants in wastewaters and their potential risks has drawn a large attention of the scientific community during the last years. The presence of these contaminants is especially controversial when wastewater is considered for reuse because a large number of microcontaminants are frequently not totally removed by conventional wastewater treatment processes. As a contribution to the knowledge in this field, this chapter focuses on the application of four well-known and widely used technologies to the elimination of microcontaminants. Membranes, activated carbon, ozonation, and advanced oxidation processes (AOPs) are deeply reviewed to assess their efficiency and safety in the elimination of these contaminants from wastewater effluents. A brief description of each technology is presented together with a review of their real application, mostly in wastewater treatment plants (WWTPs). A deep analysis of the found data allows to conclude that the four presented alternatives can be useful for microcontaminant mitigation although none of them seem to be a universal barrier for microcontaminants when used separately. In addition, each technology presents drawbacks which demand further research to be overcome. Depending on the final use of reclaimed water, the treatment may require the combination of several of the studied technologies although that results in an economic impact which cannot be neglected.

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Application of solar AOPs and ozonation for elimination of micropollutants in municipal wastewater treatment plant effluents

Cited by 260 publications

References 30 publications

Environmental friendly method for urban wastewater monitoring of micropollutants defined in the Directive 2013/39/EU and Decision 2015/495/EU

Environmental friendly method for urban wastewater monitoring of micropollutants defined in the Directive 2013/39/EU and Decision 2015/495/EU

Ecotoxicity evaluation of a WWTP effluent treated by solar photo-Fenton at neutral pH in a raceway pond reactor

Treatment Technologies for Wastewater Reuse: Fate of Contaminants of Emerging Concern

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