评估两个半植物从污染的盐水中提取Cd和Zn的潜力
Amira K Hajri1, Noureddine Hamdi2,3, Amnah A Alharbi4
1Department of Chemistry, Alwajh College, University of Tabuk, Tabuk, Saudi Arabia.
Environmental science and pollution research international
|October 20, 2023
概括
两个状植物物种,Sesuvium portulacastrum和Carpobrotus edulis,显示出从盐水中提取有毒重金属如和的潜力. 葡萄 (Sesuvium portulacastrum) 具有较高的耐受性和积累效率,特别是对于.
科学领域:
- 环境科学 环境科学
- 植物生物学 植物生物学
- 生物修复是一种生物修复.
背景情况:
- 盐水中的重金属污染构成了全球环境挑战.
- 植物提取为物理化学方法的污染物去除提供了具有成本效益和高效的替代方案.
- 植物是耐盐植物,在盐水环境中有可能进行植物修复.
研究的目的:
- 为了评估两个型植物物种的 (Cd2+) 和 (Zn2+) 积累潜力:Carpobrotus edulis和Sesuvium portulacastrum.
- 评估这些物种从污染的盐水中提取重金属的耐受性和效率.
主要方法:
- 种植C. edulis和S. portulacastrum的幼苗在盐水 (200毫米NaCl) 中培养了一个月.
- 植物暴露于Cd2+ (0,50,100μM) 和Zn2+ (0,200,400μM) 的不同度,分别应用.
- 分析了植物组织中的重金属度和转移因子,以确定积累和提取效率.
主要成果:
- 这两种半体对Zn2+的耐药性都比Cd2+更强,而S. portulacastrum对这两种金属的耐药性更强.
- 植物在根和芽中有效吸收和缩Cd2+和Zn2+,通过组织度和转移因子表示.
- 一个月后,S. portulacastrum和C. edulis分别提取了31%和21%的Cd,分别提取了18%和19%的 Zn.
结论:
- 植物物种,特别是S. portulacastrum,在从盐水废水中提取和方面非常有效.
- 这些发现突显了植物在重金属污染的海洋和河口环境的植物修复方面的潜力.
- 进一步的研究可以优化工业和农业废水的植物辅助整治策略.
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