Benzotriazole (BTA), which is extensively served as household and engineering agent, is one of the emerging and persistent contaminants. Despite the spirit to remove BTA is willing, the traditional wastewater treatments are weak. Therefore, the degradation of BTA via electron beam was systematically explored in this study. It turned out that after 5.0 kGy irradiation, even 87.5 mg L⁻¹ BTA could be completely removed, and the irradiation conformed perfectly to the pseudo first-order kinetics model. The effects of solution pH, inorganic anions (${\text{CO}}_3^{2-}$, ${\text{HCO}}_3^{-}$, ${\text{NO}}_3^{-}$, ${\text{NO}}_2^{-}$, ${\text{SO}}_4^{2-}$, ${\text{SO}}_3^{2-}$, ${\text{Cl}}^{-}$), and gas atmosphere were all explored. And results indicated that oxidative hydroxyl radicals played critical role in BTA irradiation. Additionally, presence of H₂O₂ and K₂S₂O₈ promoted significantly not only degradation extent but also mineralization efficiency of BTA due to they both augmented the generation of oxidative free radicals. Moreover, by combining theoretical calculations with experimental results, it could be inferred that degradation of BTA was mainly carried out by the benzene ring-opening. Further toxicity evaluation proved that as irradiation proceeded, the toxicity alleviated. Taken together, there were various indications that BTA could be effectively eliminated by electron beam irradiation in aquatic environments.

苯并三唑 (BTA) 广泛用作家居和工程试剂，是一种新兴的持久性污染物。尽管有去除BTA的精神，但传统的废水处理能力薄弱。因此，本研究系统地探讨了通过电子束降解 BTA。结果表明，在5.0 kGy辐照后，即使87.5 mg L ^-1 BTA也能被完全去除，辐照完全符合伪一级动力学模型。溶液pH值、无机阴离子的影响（${\text{二氧化碳}}_3^{2-}$, ${\text{碳酸氢钠}}_3^{-}$, ${\text{不}}_3^{-}$, ${\text{不}}_2^{-}$, ${\text{所以}}_4^{2-}$, ${\text{所以}}_3^{2-}$, ${\text{氯}}^{-}$)，和气体气氛都进行了探索。结果表明氧化性羟基自由基在BTA辐照中起关键作用。此外，H ₂ O ₂和 K ₂ S ₂ O _{8 的存在}由于它们都增加了氧化自由基的产生，因此不仅显着促进了 BTA 的降解程度，还显着促进了 BTA 的矿化效率。此外，结合理论计算和实验结果，可以推断BTA的降解主要通过苯开环进行。进一步的毒性评估证明，随着辐照的进行，毒性减轻。综上所述，各种迹象表明，在水生环境中，电子束辐照可以有效消除 BTA。