Degradation of sulfamethoxazole and antibiotic resistance genes from surface water in the photocatalyst-loading bionic ecosystems

Zhou, H. D.; Xu, Xinxuan; Wangjin, Yadan; Ye, Mixuan; Wu, Tianyu; Wang, Zuxin; Cui, Jinyu

doi:10.1016/j.scitotenv.2023.165045

Cited by 3 publications

(4 citation statements)

References 51 publications

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“…There are described chemical and physicochemical processes predominantly resulting in S-N bond cleavage. Then, the products of SN degradation are sulfanilamide (D, Figure 9 ), sulfanilic acid, and a heterocyclic amine (C, Figure 6 ) [ 26 , 28 , 40 , 41 , 42 , 43 , 44 ]. These compounds can also be formed by the biodegradation of SNs [ 45 , 46 , 47 , 48 , 49 ].…”

Section: Resultsmentioning

confidence: 99%

“…These compounds can also be formed by the biodegradation of SNs [ 45 , 46 , 47 , 48 , 49 ]. The products of the hydroxylation of the benzene ring (H, Figure 6 and Figure 9 ) and/or heterocycle ring (I, Figure 6 ; E, Figure 9 ) are also frequently identified [ 26 , 28 , 30 , 31 , 41 , 42 , 43 , 44 , 50 , 51 , 52 , 53 ]. Wang et al [ 49 ] and Wang and Wang [ 45 ] described hydroxylation products of the heterocyclic ring after the biodegradation of SNs.…”

Section: Resultsmentioning

confidence: 99%

“…To degrade these drugs, studies with the use of chemical methods (reactions with H 2 O 2 , O 3 , peroxosulphates, Cl 2 , ClO 2 and Fe(VI) compounds, and Fenton-type processes), physical methods (UV- and gamma-initiated photolysis), physicochemical methods (photocatalysis and anodic oxidation), and combined methods have been conducted [ 6 , 13 , 21 , 22 , 23 , 24 , 25 , 26 ]. The photocatalytic process is one of the methods proposed to degrade SNs in the aqueous environment [ 14 , 22 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. Additionally, the use of this process for the pretreatment of wastewater containing antibiotics has the influence of reducing the formation of potentially drug-resistant microorganisms or genes.…”

Section: Introductionmentioning

confidence: 99%

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Biodegradation of Photocatalytic Degradation Products of Sulfonamides: Kinetics and Identification of Intermediates

Madej-Knysak,

Adamek,

Baran

2024

IJMS

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Sulfonamides can be effectively removed from wastewater through a photocatalytic process. However, the mineralization achieved by this method is a long-term and expensive process. The effect of shortening the photocatalytic process is the partial degradation and formation of intermediates. The purpose of this study was to evaluate the sensitivity and transformation of photocatalytic reaction intermediates in aerobic biological processes. Sulfadiazine and sulfamethoxazole solutions were used in the study, which were irradiated in the presence of a TiO2-P25 catalyst. The resulting solutions were then aerated after the addition of river water or activated sludge suspension from a commercial wastewater treatment plant. The reaction kinetics were determined and fifteen products of photocatalytic degradation of sulfonamides were identified. Most of these products were further transformed in the presence of activated sludge suspension or in water taken from the river. They may have been decomposed into other organic and inorganic compounds. The formation of biologically inactive acyl derivatives was observed in the biological process. However, compounds that are more toxic to aquatic organisms than the initial drugs can also be formed. After 28 days, the sulfamethoxazole concentration in the presence of activated sludge was reduced by 66 ± 7%. Sulfadiazine was practically non-biodegradable under the conditions used. The presented results confirm the advisability of using photocatalysis as a process preceding biodegradation.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biodegradation of Photocatalytic Degradation Products of Sulfonamides: Kinetics and Identification of Intermediates

Madej-Knysak,

Adamek,

Baran

2024

IJMS

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show abstract

“…6,7 The inherent resistance of antibiotics like SMX to decomposition, coupled with the challenges in their removal from wastewater, poses a significant threat to biosafety. 8 Current remediation strategies, such as adsorption, 9,10 biological treatment, 11,12 and oxidation processes, 13,14 have proven inadequate for the complete degradation of SMX in wastewater treatment systems. 15,16 In light of these findings, it is imperative to explore and develop more efficient and environmentally sustainable methods.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-bonded organic frameworks with extended conjugate systems for boosted photocatalytic degradation

Bai,

Xin,

Jia

et al. 2024

New J. Chem.

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Sulfamethoxazole removal and ammonium conversion in microalgae consortium: Physiological responses and microbial community changes

Eheneden,

Wang,

Chen

et al. 2024

Science of The Total Environment

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Degradation of sulfamethoxazole and antibiotic resistance genes from surface water in the photocatalyst-loading bionic ecosystems

Cited by 3 publications

References 51 publications

Biodegradation of Photocatalytic Degradation Products of Sulfonamides: Kinetics and Identification of Intermediates

Biodegradation of Photocatalytic Degradation Products of Sulfonamides: Kinetics and Identification of Intermediates

Hydrogen-bonded organic frameworks with extended conjugate systems for boosted photocatalytic degradation

Sulfamethoxazole removal and ammonium conversion in microalgae consortium: Physiological responses and microbial community changes

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