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A critical review of ionizing irradiation technologies for the remediation of waters containing Microcystin-LR and M. aeruginosa
Radiation Physics and Chemistry ( IF 2.9 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.radphyschem.2020.109128
Alexandra M. Folcik , Suresh D. Pillai

Abstract Harmful algal and cyanobacterial blooms pose threats to human and ecological health due to their release of hazardous toxins. Microcystin-LR (MC-LR), a potent hepatotoxin, is the most prevalent cyanotoxin found in freshwater blooms. Although produced by many species of cyanobacteria, Microcystis aeruginosa is most commonly associated with MC-LR production. These blooms are increasing in occurrence in lakes, ponds, and other surface waters and, therefore, require efficient treatment methods to be removed from water supplies. Ionizing radiation technologies offer promising approaches for the removal of organic pollutants in water, including cyanotoxins and cyanobacteria. Gamma irradiation for the degradation of cyano-bacteria and toxins is effective for overall MC-LR degradation as well as reducing cell concentrations. However, gamma irradiation technology involves use of radioactive isotopes and, therefore, may not feasible commercially from a security perspective. Electron beam (eBeam) irradiation technology, which relies on regular electricity to generate highly energetic electrons, is able to achieve the same results without the confounding challenges of radioactive isotopes and related security issues. In this critical review, the current state of the science concerning the remediation of MC-LR and M. aeruginosa with ionizing radiation technologies is presented and future necessary research is discussed.

中文翻译:

用于修复含有微囊藻毒素-LR 和铜绿假单胞菌的水体的电离辐射技术的批判性审查

摘要 有害藻类和蓝藻大量繁殖会释放有害毒素,对人类和生态健康构成威胁。微囊藻毒素-LR (MC-LR) 是一种有效的肝毒素,是淡水水华中发现的最普遍的蓝藻毒素。虽然由多种蓝藻产生,但铜绿微囊藻最常与 MC-LR 产生相关。这些水华在湖泊、池塘和其他地表水中的发生率越来越高,因此需要采用有效的处理方法从供水中去除。电离辐射技术为去除水中的有机污染物(包括蓝藻毒素和蓝藻)提供了有前景的方法。用于降解蓝细菌和毒素的伽马辐射对于整体 MC-LR 降解以及降低细胞浓度是有效的。然而,伽马辐照技术涉及使用放射性同位素,因此从安全角度来看可能在商业上不可行。电子束 (eBeam) 辐照技术依靠常规电力产生高能电子,能够实现相同的结果,而不会受到放射性同位素和相关安全问题的复杂挑战。在这篇批判性评论中,介绍了用电离辐射技术修复 MC-LR 和铜绿假单胞菌的科学现状,并讨论了未来必要的研究。能够在没有放射性同位素和相关安全问题的混杂挑战的情况下实现相同的结果。在这篇批判性评论中,介绍了用电离辐射技术修复 MC-LR 和铜绿假单胞菌的科学现状,并讨论了未来必要的研究。能够在没有放射性同位素和相关安全问题的混杂挑战的情况下实现相同的结果。在这篇批判性评论中,介绍了用电离辐射技术修复 MC-LR 和铜绿假单胞菌的科学现状,并讨论了未来必要的研究。
更新日期:2020-12-01
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