Zhang Qinku, Larson Steven L, Ballard John H, Cheah Pohlee, Zhu Xianchun, Knotek-Smith Heather M, Han Fengxiang X
Department of Chemistry and Biochemistry, Jackson State University, 1400 J. R. Lynch Street, Jackson, MS 39217, USA.
School of Civil Engineering and Shaanxi Key Laboratory of Ecological Restoration in Shanbei Mining Area, YulinUniversity, Yulin, Shaanxi 719000, China.
MethodsX. 2020 Jan 17;7:100789. doi: 10.1016/j.mex.2020.100789. eCollection 2020.
A novel laboratory simulation system has been developed for the study of the corrosion of uranium metal in soils. Corrosion and transportation of depleted uranium (DU) as the metal undergoes weathering as a buried material within the soil environment. The corrosion of uranium metal in soil was not well understood due to the gas-liquid-solid phase of the soil. This study presents a novel method to investigate the change of uranium species during the process of process of oxidation of metallic uranium in these environments. Compared with other techniques used for the study of environmental corrosion of metals in soils, this method has the advantage of low secondary uranium pollution, no energy consumption, and ease of operation. The simulation system has been used for the following studies: •Simultaneously simulate the corrosion of uranium metal in different soil moisture regimes•Study the influence of biogeochemical factors on the corrosion of uranium metal•Investigate the change of uranium species during oxidation.
已开发出一种新型实验室模拟系统，用于研究金属铀在土壤中的腐蚀情况。贫铀（DU）作为金属在土壤环境中作为埋藏物经历风化时的腐蚀与迁移。由于土壤的气-液-固三相，金属铀在土壤中的腐蚀情况尚未得到充分了解。本研究提出了一种新方法，用于研究在这些环境中金属铀氧化过程中铀物种的变化。与用于研究金属在土壤中环境腐蚀的其他技术相比，该方法具有二次铀污染低、无能耗且操作简便的优点。该模拟系统已用于以下研究：•同时模拟不同土壤湿度条件下金属铀的腐蚀情况•研究生物地球化学因素对金属铀腐蚀的影响•研究氧化过程中铀物种的变化。
