Chenxi Zhang, Jingze Peng, Shuai Zhang, Bin Chen, Pengxiang Qiu
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引用次数: 0
摘要
摘要抗生素耐药菌(ARB)的产生和广泛传播对全球公共卫生构成了新的威胁。电化学消毒(ED)是一种广泛用于灭活 ARB 的环保型消毒技术。本研究探讨了改性活性炭材料(MACM)辅助电化学消毒对多种 ARB 灭活和再生能力的影响。事实证明,已建立的 ED 技术能有效灭活多重抗性 ARB。具体来说,在 2.5 V 的电压下,MACM 辅助 ED 在 30 分钟内可去除 5 个菌落的 ARB。此外,没有观察到 ARB 再生,这表明 ARB 已被永久灭活。MACM 电解诱导的高水平活性氯对 ARB 造成了压力。活性氯导致细胞中活性氧的过度产生和细胞膜的破坏,加速了 ARB 的失活。总之,MACM辅助ED方法在ARB灭活方面表现出了高效的性能,这意味着该方法有望替代传统的消毒方法来对抗ARB的传播。
ABSTRACTThe production and widespread transmission of antibiotic-resistant bacteria (ARB) pose an emerging threat to global public health. Electrochemical disinfection (ED) is an environmentally friendly disinfection technology widely utilized to inactivate ARB. This study explored the effect of modified activated carbon material (MACM) assisted ED on multi-ARB inactivation and the regeneration ability. The established ED technique was proven to be effective in inactivating multi-resistant ARB. Specifically, a 5-log ARB removal was achieved within 30 min treatment of MACM-assisted ED at 2.5 V. Additionally, no ARB regrowth was observed, indicating a permanent inactivation of ARB. The high level of reactive chlorine induced by MACM electrolysis was stressful to the ARB. Reactive chlorine led to overproduction of reactive oxygen species and damage of cell membranes in cells, accelerating the inactivation of ARB. Conclusively, the MACM-assisted ED method demonstrated efficient performance for ARB inactivation, implying this method is a promising alternative to traditional disinfection methods in countering ARB transmission.
期刊介绍:
Environmental Technology is a leading journal for the rapid publication of science and technology papers on a wide range of topics in applied environmental studies, from environmental engineering to environmental biotechnology, the circular economy, municipal and industrial wastewater management, drinking-water treatment, air- and water-pollution control, solid-waste management, industrial hygiene and associated technologies.
Environmental Technology is intended to provide rapid publication of new developments in environmental technology. The journal has an international readership with a broad scientific base. Contributions will be accepted from scientists and engineers in industry, government and universities. Accepted manuscripts are generally published within four months.
Please note that Environmental Technology does not publish any review papers unless for a specified special issue which is decided by the Editor. Please do submit your review papers to our sister journal Environmental Technology Reviews at http://www.tandfonline.com/toc/tetr20/current