In present work, the degradation of a steroid androgen, androstenedione (AD) in aqueous solution was investigated using both gamma ray and thermal activation persulfate (PS) processes. Gamma irradiation effectively degraded AD and the addition of PS synergistically improved the effect. The AD concentration decreased with increasing absorbed dose and PS dosage. The rate constant of AD degradation was 4.92/kGy for γ-irradiation alone, increasing by 1.23–1.55 times with PS dosages of 10–30 mg/L. AD exhibited a high thermal stability, and heat activated PS efficient for its degradation. The apparent activation energy for AD degradation was determined to be 98.0 kJ/mol. Oxidation by OH is the major mechanism to degrade AD, while SO4– also play a role in both processes. Both methods were also effective to removed AD from groundwater and fermentation residues, providing a promising option for steroid androgen removal from wastewater and solid wastes.

中文翻译：

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使用电离辐射和热活化过硫酸盐工艺降解水溶液中的类固醇雄激素


在本研究中，使用 γ 射线和热活化过硫酸盐 （PS） 过程研究了类固醇雄激素雄烯二酮 （AD） 在水溶液中的降解。γ 射线照射有效降解 AD，PS 的添加协同改善效果。AD 浓度随吸收剂量和 PS 剂量的增加而降低。单独γ照射时，AD 降解的速率常数为 4.92/kGy，当 PS 剂量为 10-30 mg/L 时，AD 降解率增加 1.23-1.55 倍。AD 表现出高热稳定性，热活化 PS 对其降解有效。AD 降解的表观活化能确定为 98.0 kJ/mol。OH 氧化是降解 AD 的主要机制，而 SO4– 在这两个过程中也起作用。这两种方法都能有效地去除地下水和发酵残留物中的 AD，为从废水和固体废物中去除类固醇雄激素提供了一种有前途的选择。