Environmental aspects of UV-C-based processes for the treatment of oxytetracycline in water

Stankov, Vladimir; Stankov, Mirjana Novak; Cvetnić, Matija; Bureš, Marija Sigurnjak; Ukić, Šime; Grgić, Dajana Kučić; Božić, Ana Lončarić; Kušić, Hrvoje; Bolanča, Tomislav

doi:10.1016/j.envpol.2021.116797

Cited by 24 publications

(4 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several authors have noted that AOPs at certain stages of treatment can result in an increase in water toxicity. This increase is often attributed to undetected TPs, which are primarily responsible for the observed rise in toxicity [68]. A similar development of toxicity as in our research (an increasing trend in the intermediate stages of treatment, which later decreases) during UV/H2O2 treatment was also indicated in other relevant studies based on the formation and successive decomposition of oxidation products, which exhibit a higher degree of inhibition than the parent compound [69].…”

Section: Evaluation Of Water Quality Based On the Toxicity Assessmentsupporting

confidence: 90%

New Insight into the Degradation of Sunscreen Agents in Water Treatment Using UV-Driven Advanced Oxidation Processes

Simetić,

Nikić,

Kuč

et al. 2024

Processes

View full text Add to dashboard Cite

This study evaluates, for the first time, the effects of UV/PMS and UV/H2O2/PMS processes on the degradation of sunscreen agents in synthetic and natural water matrices and compares their effectiveness with the more conventional UV/H2O2. Investigations were conducted using a mixture of organic UV filters containing 4-methylbenzylidene camphor (4-MBC) and 2-ethylhexyl-4-methoxycinnamate. Among the investigated UV-driven AOPs, UV/PMS/H2O2 was the most effective in synthetic water, while in natural water, the highest degradation rate was observed during the degradation of EHMC by UV/PMS. The degradation of UV filters in the UV/PMS system was promoted by sulfate radical (68% of the degradation), with hydroxyl radical contributing approximately 32%, while both radical species contributed approximately equally to the degradation in the UV/H2O2/PMS system. The Vibrio fischeri assay showed an increase in inhibition (up to 70%) at specific stages of UV/H2O2 treatment when applied to natural water, which further decreased to 30%, along with an increase in UV fluence and progressive degradation. The Pseudomonas putida test recorded minor toxicity (<15%) after treatments. Magnetic biochar utilized in conjunction with UV-driven AOPs exhibited superior performance in eliminating residual contaminants, providing an efficient and sustainable approach to mitigate sunscreen agents in water treatment.

show abstract

Section: Evaluation Of Water Quality Based On the Toxicity Assessmentsupporting

confidence: 90%

New Insight into the Degradation of Sunscreen Agents in Water Treatment Using UV-Driven Advanced Oxidation Processes

Simetić,

Nikić,

Kuč

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

“…OTC is a broad-spectrum antibiotic from the tetracycline class that acts against a wide range of disease-causing bacteria. OTC has been reported to be resistant to natural photolytic degradation, and it was stable in water . Because of manure application or wastewater irrigation, 85% of soil samples collected from vegetable fields in the Pearl River Delta of China had maximum concentrations of 406.7 μg/kg of OTC .…”

Section: Introductionmentioning

confidence: 99%

Oxytetracycline Increases the Residual Risk of Imidacloprid in Radish (Raphanus sativus) and Disturbs the Plant-Rhizosphere Microbiome Holobiont Homeostasis

Jiang,

Cheng,

Zhai

et al. 2024

J. Agric. Food Chem.

View full text Add to dashboard Cite

Antibiotics can be accidentally introduced into farmland by wastewater irrigation, and the environmental effects are still unclear. In this study, the effects of oxytetracycline on the residue of imidacloprid in soil and radishes were investigated. Besides, the rhizosphere microbiome and radish metabolome were analyzed. It showed that the persistence of imidacloprid in soil was unchanged, but the content of olefin-imidacloprid was increased by oxytetracycline. The residue of imidacloprid in radishes was increased by nearly 1.5 times, and the hazard index of imidacloprid was significantly raised by 1.5−4 times. Oxytetracycline remodeled the rhizosphere microbiome, including Actinobe, Elusimic, and Firmicutes, and influenced the metabolome of radishes. Especially, some amino acid metabolic pathways in radish were downregulated, which might be involved in imidacloprid degradation. It can be assumed that oxytetracycline increased the imidacloprid residue in radish through disturbing the plantrhizosphere microbiome holobiont and, thus, increased the pesticide dietary risk.

show abstract

“…Oxytetracycline (OTC), a tetracycline-class antibiotic, is commonly used as an animal feed additive, but it is poorly absorbed, with 30-90% of the parent compound being excreted [8]. Due to its resistance to biological degradation, conventional wastewater treatment is ineffective to remove OTC, and it is therefore emitted into the natural aquatic environment [9]. Therefore, OTC is commonly detected in the effluent wastewater treatment plant (564.30 ng/L) [10] and environmental water samples (10 to 388 µg/L) [11].…”

Section: Introductionmentioning

confidence: 99%

Photodegradation Behavior of Agricultural Antibiotic Oxytetracycline in Water

Lee

et al. 2022

Water

View full text Add to dashboard Cite

Due to their overuse in agriculture, antibiotics are discharged into the aquatic environment, which poses a threat to human health and aquatic organisms. The agricultural antibiotic oxytetracycline (OTC) persists in aquatic media for a long time due to its resistance to biological degradation. Photolysis is a main pathway for its degradation in the natural environment and wastewater treatment, and thus, the photolysis of OTC should be investigated. In this study, the effects of reaction conditions such as the irradiation conditions, the initial OTC concentration, and the water matrix on OTC photolysis were investigated. The most efficient degradation was observed when UV-C was used as the irradiation source (k = 0.0148 ± 0.0008 min−1), and the removal ratio increased with higher light intensity. A lower initial OTC concentration and higher solution temperature were advantageous for the degradation of OTC. The presence of humic acid or inorganic ions negatively affected the degradation rate of OTC. In addition to the effects of the reaction conditions, the degradation kinetics of OTC in actual agricultural water and the photolysis of various antibiotics such as streptomycin, validamycin A, and oxolinic acid were further studied. This work proved that various factors could decrease the photodegradation of OTC, which raises the potential risks that are associated with the persistent use of antibiotics in the water environment. Therefore, the results of the present study can help to provide an understanding of the effects of various reaction conditions on the degradation of agricultural antibiotics.

show abstract

Environmental aspects of UV-C-based processes for the treatment of oxytetracycline in water

Cited by 24 publications

References 55 publications

New Insight into the Degradation of Sunscreen Agents in Water Treatment Using UV-Driven Advanced Oxidation Processes

New Insight into the Degradation of Sunscreen Agents in Water Treatment Using UV-Driven Advanced Oxidation Processes

Oxytetracycline Increases the Residual Risk of Imidacloprid in Radish (Raphanus sativus) and Disturbs the Plant-Rhizosphere Microbiome Holobiont Homeostasis

Photodegradation Behavior of Agricultural Antibiotic Oxytetracycline in Water

Contact Info

Product

Resources

About