Immobilization of Acinetobacter sp. A-1 and Applicability in Removal of Difenoconazole from Water–Sediment Systems DOI Creative Commons
Feiyu Chen, Liping Wang, Yi Zhou

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(4), P. 802 - 802

Published: April 1, 2025

Difenoconazole, as a systemic triazole fungicide, is broad-spectrum, highly effective agent that has been widely used for controlling fungal diseases in 46 different crops (or crop categories), including rice, wheat, and corn. Due to the improper use of difenoconazole, concerns about its environmental residues toxicity non-target organisms have drawn significant attention from researchers. In response this issue, study aimed isolate microbial strains capable degrading difenoconazole environment. A novel difenoconazole-degrading strain, Acinetobacter sp. A-1, was screened identified, demonstrating ability degrade 62.43% 50 mg/L within seven days. Further optimization degradation conditions conducted using single-factor experiments surface methodology experiments. The results showed optimal strain A-1 were concentration 55.71 mg/L, pH 6.94, an inoculation volume 1.97%, achieving rate 79.30%. Finally, immobilized sodium alginate, stability bioremediation efficiency evaluated. indicated exhibited high significantly reduced half-life water–sediment contamination system. sterilized system, by reached 65.26%. Overall, suggests promising candidate degradation, immobilization technology can effectively enhance removal systems.

Language: Английский

Optimizing UV Photodegradation of Chlorothalonil with Reflective Materials (Silver-White Aluminium Foil) DOI Open Access

Jingfeng Xue,

Siyu Chen,

Xin Ma

et al.

Water, Journal Year: 2025, Volume and Issue: 17(7), P. 1032 - 1032

Published: March 31, 2025

This study investigated the photocatalytic degradation of chlorothalonil under a range ultraviolet lamp configurations, and studied improvement in efficiency reflective material (silver-white aluminium foil). Increasing number UV lamps significantly enhanced efficiency, reducing half-life from 29.95 min with one to 8.15 four 20 cm enamel bucket. The use silvery-white foil further decreased 3.86 min, improving rates by up 262.9%. In larger containers, increased 414.7% foil. Comparisons black confirmed that silver-white reflecting redistributing light, increasing intensity 252% CTL 150.36 22.9 controlled light box. Further tests amplified irradiation, 555.1%. These improvements might suggest enhances utilisation through direct reflection, refraction, diffuse effectively redirecting photons would otherwise escape system. Experiments natural water sources showed similar trends, half-lives 55.23 ultrapure water, 12.63 pond 16.36 paddy field water. addition reduced these times 23.92 7.13 12.34 respectively. findings demonstrate photodegradation without energy consumption. While effective, method faces challenges acidic or alkaline wastewater due potential corrosion system components. Future research should focus on identifying stable, high-reflectivity materials for long-term applications. offers practical insights into optimisation processes, which contributes improved treatment strategies environmental pollution mitigation.

Language: Английский

Citations

0
Immobilization of Acinetobacter sp. A-1 and Applicability in Removal of Difenoconazole from Water–Sediment Systems DOI Creative Commons
Feiyu Chen, Liping Wang, Yi Zhou

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(4), P. 802 - 802

Published: April 1, 2025

Difenoconazole, as a systemic triazole fungicide, is broad-spectrum, highly effective agent that has been widely used for controlling fungal diseases in 46 different crops (or crop categories), including rice, wheat, and corn. Due to the improper use of difenoconazole, concerns about its environmental residues toxicity non-target organisms have drawn significant attention from researchers. In response this issue, study aimed isolate microbial strains capable degrading difenoconazole environment. A novel difenoconazole-degrading strain, Acinetobacter sp. A-1, was screened identified, demonstrating ability degrade 62.43% 50 mg/L within seven days. Further optimization degradation conditions conducted using single-factor experiments surface methodology experiments. The results showed optimal strain A-1 were concentration 55.71 mg/L, pH 6.94, an inoculation volume 1.97%, achieving rate 79.30%. Finally, immobilized sodium alginate, stability bioremediation efficiency evaluated. indicated exhibited high significantly reduced half-life water–sediment contamination system. sterilized system, by reached 65.26%. Overall, suggests promising candidate degradation, immobilization technology can effectively enhance removal systems.

Language: Английский

Citations

0