通过吸附使用Pyrolysis形成的Brewer's已耗尽的谷物去除和
Hyung Wook Lee1, Han Gyeol Jeon1, Kyoung-Woong Kim2
1School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
Environmental geochemistry and health
|June 17, 2023
概括
酒厂的废谷物 (BSG) 生物炭有效吸附和,这是放射性废物的关键成分. 这种可持续材料为处理核废物提供了一个有希望的解决方案,将造副产品重新利用.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 酒酒的花费谷物 (BSG) 是酒造的副产品,目前主要用于动物料.
- BSG具有高蛋白质和纤维含量,使其成为生物炭生产的合适前体.
- 放射性废物管理是一个重大问题,特别是在拥有核电站的地区.
研究的目的:
- 为了研究BSG衍生生物炭 (BSG-850) 吸附 (Co) 和 (Sr) 的潜力,这是放射性废物中的两个主要放射性核化物.
- 为了评估温度对BSG-850对Co和Sr.的吸附能力的影响.
- 评估BSG-850在存在竞争性离子时的可重复使用性和性能.
主要方法:
- 在850°C下对BSG进行热解,以产生BSG-850生物炭.
- 批量吸附实验以确定不同温度 (298 K, 308 K, 318 K) 的Co和Sr的容量.
- 循环吸附-脱附试验,以评估BSG-850.的可重复使用性.
- 与其他存在的离子进行竞争性吸附研究.
主要成果:
- 和的吸附能力随着温度的增加而增加.
- 在318K的特定吸附能力为Co的5.516 mg/g和Sr的3.036 mg/g.
- 在四个周期中,BSG-850显示出显著的可重复使用性,并保持了相当大的吸附能力.
- 竞争性离子的存在降低了Co和Sr的吸附效率.
结论:
- 来自BSG的生物炭 (BSG-850) 对和具有出色的吸附性能.
- 温度对BSG-850对这些放射性核酸的吸附能力产生积极影响.
- BSG-850是一种可重复使用且具有潜在成本效益的放射性废物处理材料.
- 将BSG转化为生物炭是一种可持续的方法来应对放射性废弃物的挑战.
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