通过支持的离子液体去除:效率和生态毒理学评估
Thainara Viana1, Raquel Almeida1, Paula Figueira2
1LAQV-REQUIMTE - Associated Laboratory for Green Chemistry & Department of Chemistry, University of Aveiro, Aveiro, Portugal.
Aquatic toxicology (Amsterdam, Netherlands)
|June 19, 2023
概括
支持的离子液有效地从盐水中去除,达到低于1μg/L的水平. 经过处理的水和离子液本身对海洋藻类Ulva lactuca没有生态毒理学损害.
科学领域:
- 环境化学环境化学
- 海洋生态毒理学 海洋生态毒理学
- 材料科学 材料科学 材料科学
背景情况:
- 人类活动污染了沿海环境, (Hg) 由于其毒性和生物放大而构成重大威胁.
- 是一种优先环境污染物,需要水生生态系统的先进修复方法.
- 现有的去除的技术需要改进,以防止其在海洋环境中持续存在.
研究的目的:
- 评估六种不同酸盐支持的离子液体 (SIL) 的有效性,以从污染的盐水中去除.
- 用海洋巨藻Ulva lactuca作为模型生物来评估SIL处理水的生态毒理安全性.
主要方法:
- 测试了六种不同的含有二氧化的离子液体,从合成盐水中去除 ([Hg] = 50μg/L).
- 根据移除效率和时间确定了最有效的SIL.
- 生态毒理学评估涉及将Ulva lactuca暴露在SIL和/或修复水中,监测生长速度和叶绿素水平.
- 进行生物标记分析 (LPO,GSH,GSSG,SOD,GPx,CAT,GRed) 来评估细胞应激和生化性能.
主要成果:
- SIL [Si][C3C1im][SCN]证明了最高的去除效率,在6小时内达到99%.
- 处理过的水中的含量减少到1μg/L以下,符合欧洲饮用水指南.
- 暴露在SIL或处理水中的Ulva lactuca在生长速度,叶绿素含量或关键生物化学生物标志物中没有显著变化,这表明没有不良影响.
结论:
- 支持的离子液体[Si][C3C1im][SCN]是从盐水中去除的高效剂.
- 使用SIL用于整治和SIL在水环境中的存在对Ulva lactuca没有生态毒理学影响.
- 这些发现表明,SIL是一种有前途且安全的技术,用于处理受污染的水系统.
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