Removal of pharmaceuticals and kinetics of mineralization by O3/H2O2 in a biotreated municipal wastewater

Rosal, Roberto; Rodrı́guez, Antonio Rodrı́guez; Perdigón-Melón, José Antonio; Mezcúa, Milagros; Hernando, M.D.; Letón, P. Fernández; García‐Calvo, Eloy; Agüera, Ana; Fernández‐Alba, Amadeo R.

doi:10.1016/j.watres.2008.06.008

Cited by 155 publications

(43 citation statements)

References 32 publications

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“…Pharmaceuticals are subclasses of organic contaminants that have been detected in wastewater and surface waters throughout the world (Benotti et al 2009;Philips et al 2010;Rosal et al 2008). These emerging pollutants are continuously introduced into the aquatic environment by several emissions from manufacturing facilities, consumer use and disposal, and hospital waste (Langford and Thomas 2009;Philips et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Degradation of paracetamol by pure bacterial cultures and their microbial consortium

Zhang

Zhu

et al. 2012

Appl Microbiol Biotechnol

140

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Three bacterial strains utilizing paracetamol as the sole carbon, nitrogen, and energy source were isolated from a paracetamol-degrading aerobic aggregate, and assigned to species of the genera Stenotrophomonas and Pseudomonas. The Stenotrophomonas species have not included any known paracetamol degraders until now. In batch cultures, the organisms f1, f2, and fg-2 could perform complete degradation of paracetamol at concentrations of 400, 2,500, and 2,000 mg/L or below, respectively. A combination of three microbial strains resulted in significantly improved degradation and mineralization of paracetamol. The co-culture was able to use paracetamol up to concentrations of 4,000 mg/L, and mineralized 87.1 % of the added paracetamol at the initial of 2,000 mg/L. Two key metabolites of the biodegradation pathway of paracetamol, 4-aminophenol, and hydroquinone were detected. Paracetamol was degraded predominantly via 4-aminophenol to hydroquinone with subsequent ring fission, suggesting new pathways for paracetamol-degrading bacteria. The degradation of paracetamol could thus be performed by the single isolates, but is stimulated by a synergistic interaction of the three-member consortium, suggesting a possible complementary interaction among the various isolates. The exact roles of each of the strains in the consortium need to be further elucidated.

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Section: Introductionmentioning

confidence: 99%

Degradation of paracetamol by pure bacterial cultures and their microbial consortium

Zhang

Zhu

et al. 2012

Appl Microbiol Biotechnol

140

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“…However, because of their persistent and potentially hazardous character, these compounds may negatively affect living organisms in the aquatic environment and, consequently, more advanced treatments are needed to complete their removal from wastewater. In this sense, several researches have shown that ozonation and advanced oxidation processes (AOPs) have been successfully used to oxidize these contaminants from water [12][13][14]. Thus, literature has already reported many works where laboratory prepared aqueous solutions or biologically treated urban wastewater spiked with emerging contaminants (ECs) are successfully treated with AOPs.…”

Section: Introductionmentioning

confidence: 99%

Some ozone advanced oxidation processes to improve the biological removal of selected pharmaceutical contaminants from urban wastewater

Espejo

Aguinaco

Amat

et al. 2013

Journal of Environmental Science and Health, Part A

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Removal of nine pharmaceutical compounds: acetaminophen, AAF, antipyrine, ANT, caffeine, CAF, carbamazepine, CRB, diclofenac, DCF, hydrochlorothiazide, HCT, ketorolac, KET, metoprolol, MET and sulfamethoxazole, SMX, spiked in a primary sedimentation effluent of a municipal wastewater has been studied with sequential aerobic biological and ozone advanced oxidation systems. Ozone, UVA or Fe(III) during photocatalytic ozonations also allowed mineralization increases, compared to the single ozonation process, from 13% to about 35%. Biodegradability of the treated wastewater increased 50% in the biological process and other 150% after the ozonation processes. Both untreated and treated wastewater was non toxic for Daphnia Magna except when Fe(III) was used in photocatalytic ozonation. In this case, the ferryoxalate formed seems to be the reason of toxicity. Kinetic information on ozone processes reveals that pharmaceuticals at the very low concentrations they are found in urban wastewater are mainly removed through free radical oxidation.2

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“…Phenytoin (PHT) is a representative antiepileptic drug. Chronic exposure to it can result in immune suppression and dermatosis even the concentration is low [25]. Ibuprofen (IBU), an anti-inflammatory drug, may alter the postembryonic development of anuran species in freshwater environs [26].…”

mentioning

confidence: 99%

Enhanced Fenton-like degradation of pharmaceuticals over framework copper species in copper-doped mesoporous silica microspheres

Lyu

Zhang

2015

Chemical Engineering Journal

182

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Removal of pharmaceuticals and kinetics of mineralization by O3/H2O2 in a biotreated municipal wastewater

Cited by 155 publications

References 32 publications

Degradation of paracetamol by pure bacterial cultures and their microbial consortium

Degradation of paracetamol by pure bacterial cultures and their microbial consortium

Some ozone advanced oxidation processes to improve the biological removal of selected pharmaceutical contaminants from urban wastewater

Enhanced Fenton-like degradation of pharmaceuticals over framework copper species in copper-doped mesoporous silica microspheres

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