在浮式处理湿地中,多年生新兴巨植物的 (III) 去除
Nicole Nawrot1, Ewa Wojciechowska2, Muhammad Mohsin3
1Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland. nicole.nawrot@pg.edu.pl.
Scientific reports
|December 16, 2023
概括
浮式处理湿地有效地去除 (Cr(III)) 和营养物质. 弗拉格米特斯·奥斯特拉利斯 (Phragmites australis) 和伊斯达科鲁斯 (Iris pseudacorus) 呈现出高的Cr抗性,在根部积累它,同时去除N和PO4-P.
科学领域:
- 环境科学 环境科学
- 水处理技术 水处理技术
- 植物疗法 (Phytoremediation) 是一种植物疗法.
背景情况:
- 浮式处理湿地 (FTWs) 提供可持续的水资源整治.
- 在中性pH下,FTWs在去除 (Cr(III)) 的有效性尚未得到充分证实.
研究的目的:
- 评估FTWs的Cr(III), (N) 和 (PO4-P) 的去除能力.
- 调查Cr(III) 对南方和虹彩伪的生长和根组织学的影响.
主要方法:
- 种植了Pragmites australis和Iris pseudacorus的FTW被暴露在不同度的Cr (III) 中 (500-2000μg/L) 与N和PO4-P一起.
- 在50天的时间里,分析了Cr(III) 去除,植物积累,生长抑制和根组织学.
主要成果:
- 快速的Cr(III) 去除 (96-99%) 发生在1小时内,主要是通过降水.
- 弗拉格米特结合9-19%和虹膜结合5-22%的Cr (III),主要是在根部.
- 在较高的Cr (III) 水平下,植物生长受到抑制,在2000μg/L时观察到组织学变化.
结论:
- 工业用水器具有显著的Cr (III) 和从污染水中去除营养的潜力.
- 弗拉格米特斯·奥斯特拉利斯 (Phragmites australis) 和伪虹 (Iris pseudacorus) 对Cr (III) 毒性表现出相当大的抵抗力.
- FTW 是一种可行的植物修复策略,用于受Cr (III) 污染的水.
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