Acetaminophen degradation by a synergistic peracetic acid/UVC-LED/Fe(II) advanced oxidation process: Kinetic assessment, process feasibility and mechanistic considerations

Ghanbari, Farshid; Giannakis, Stefanos; Lin, Kun‐Yi Andrew; Wu, Junxue; Madihi-Bidgoli, Soheila

doi:10.1016/j.chemosphere.2020.128119

Cited by 96 publications

(23 citation statements)

References 74 publications

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“…Regarding the effect of organic matter (such as humic acid) controversial results have been reported. In a study reported by Ghanbari et al., [ 35 ] no changes in target pollutant removal were observed at relatively low concentrations of humic acid. In general, the presence of organic matter in AOPs has been widely studied with positive as well as negative effects being explained with well‐supported arguments.…”

Section: Resultsmentioning

confidence: 90%

“…More recently, alternative peroxides such as peracetic acid (PAA) and percarbonate (PC) that can also be activated with UV‐C light to form reactive oxidizing species, have been used for the removal of pollutants found in water and wastewater. [ 30–33 ] PAA is a strong oxidant and reacts to acetic acid and HP in water: [ 34,35 ]

C {normalH}_{3} C {normalO}_{3} H + {normalH}_{2} O \to C {normalH}_{3} COOH + {normalH}_{2} {normalO}_{2}

…”

Section: Introductionmentioning

confidence: 99%

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UV‐C Activation of Peroxides for Bisphenol A Removal from a Real Water Sample

Öztürk

Ucun

Arslan-Alaton

2021

CLEAN Soil Air Water

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The peroxides peracetic acid (PAA) and percarbonate (PC) are applied for UV‐C‐based advanced oxidation of the endocrine disrupting micropollutant bisphenol A (BPA; 2 mg L−1 = 8.76 µm) in pure and tap water. Their performance is compared with the more conventional hydrogen peroxide (HP)‐ and persulfate (PS)‐activated UV‐C treatments. Acidic and neutral pH values, 4 and 7, result in faster BPA removals with HP‐ and PS‐activated UV‐C treatments, respectively, whereas higher BPA removal rates are obtained at acidic and alkaline pH values, 4 and 10, with the PC/UV‐C and PAA/UV‐C treatments, respectively. Increasing the peroxide concentrations enhances BPA removals with the exception of PC/UV‐C treatment where an asymptotic removal rate is ultimately reached due to the inhibitory effect of increasing alkalinity. The order of total organic carbon (TOC) removal for the BPA‐spiked tap water (TW) (TOC ≈ 5 mg L−1 with added BPA) is TOCPAA/UV‐C (16%) < TOCPS/UV‐C (24%) < TOCHP/UV‐C (27%) < TOCPC/UV‐C (35%). BPA removal is most negatively affected for the HP/UV‐C processes, whereas the PC/UV‐C process outperformed the other peroxide/UV‐C treatments in terms of TOC removal due to the differences in the reactivity/selectivity of the in situ formed free radical types that may become important when working with real water. The originally low toxicity toward the marine photobacterium Vibrio fischeri and the freshwater crustacean Daphnia magna fluctuated during photochemical treatments.

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Section: Resultsmentioning

confidence: 90%

C {normalH}_{3} C {normalO}_{3} H + {normalH}_{2} O \to C {normalH}_{3} COOH + {normalH}_{2} {normalO}_{2}

…”

Section: Introductionmentioning

confidence: 99%

UV‐C Activation of Peroxides for Bisphenol A Removal from a Real Water Sample

Öztürk

Ucun

Arslan-Alaton

2021

CLEAN Soil Air Water

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“…According to Phong Vo, H., et al (2019) [ 19 ], several transformation processes for acetaminophen have been proposed; more than 20 by-products have been identified during the past 15 years. These metabolites might have different compositions and chemical properties, hence, presenting different levels of toxicity, and could be even more detrimental to living organisms than the parent forms [ 19 , 45 ]. In our case, the difference in seeds growth observed can be related to the acetaminophen degradation and not to pH changes; thus, it can be stated that the by-products present in the treated water are likely to have a lower toxicity than that of the drug itself.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Acetaminophen Degradation by Laccases Immobilized by Two Different Methods via a Continuous Flow Microreactor Process Scheme

Sotelo

Ornelas‐Soto

et al. 2022

Membranes

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The presence of micropollutants in wastewater is one of the most significant environmental challenges. Particularly, pollutants such as pharmaceutical residues present high stability and resistance to conventional physicochemical and biological degradation processes. Thus, we aimed at immobilizing a laccase enzyme by two different methods: the first one was based on producing alginate-laccase microcapsules through a droplet-based microfluidic system; the second one was based on covalent binding of the laccase molecules on aluminum oxide (Al2O3) pellets. Immobilization efficiencies approached 92.18% and 98.22%, respectively. Laccase immobilized by the two different methods were packed into continuous flow microreactors to evaluate the degradation efficiency of acetaminophen present in artificial wastewater. After cyclic operation, enzyme losses were found to be up to 75 µg/mL and 66 µg/mL per operation cycle, with a maximum acetaminophen removal of 72% and 15% and a retention time of 30 min, for the laccase-alginate microcapsules and laccase-Al2O3 pellets, respectively. The superior catalytic performance of laccase-alginate microcapsules was attributed to their higher porosity, which enhances retention and, consequently, increased the chances for more substrate–enzyme interactions. Finally, phytotoxicity of the treated water was lower than that of the untreated wastewater, especially when using laccase immobilized in alginate microcapsules. Future work will be dedicated to elucidating the routes for scaling-up and optimizing the process to assure profitability.

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“…In addition, hydroquinone, 1,4-benzoquinone, 4-methoxyphenol, 2-hexenic, and malic acid were monitored when oxygen vacancies and phosphorus coded black titania coated carbon nanotube composite activated by visible light was applied. Ghanbari et al 37 studied a synergistic peracetic acid/UVC-LED system to oxidize ACT. 4-Nitrophenol and hydroquinone were the transformation compounds in this system.…”

Section: By-products Of Actmentioning

confidence: 99%