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在垂直流构建湿地的废物衍生基质,以有效地去除高度重金属

Fahim Muntasir Rabbi¹, Md Kamrul Hasan¹, Md Alinur Rahman²

¹Department of Environmental Science and Technology, Jashore University of Science and Technology, Jashore 7408, Bangladesh.

Water science and technology : a journal of the International Association on Water Pollution Research

|January 16, 2025

概括

废物衍生材料有效地去除建筑湿地中的重金属. 枣树纤维和蛋的去除率超过95%,为废水处理提供了可持续的解决方案.

科学领域:

环境工程环境工程
水处理技术水处理技术
整治科学整治科学

背景情况:

水生生态系统中的重金属 (HM) 污染构成了全球环境挑战.
发展中国家需要具有成本效益的解决方案来从废水中去除HM.
废弃物衍生材料 (WDMs) 在建筑湿地 (CWs) 中为HM封存提供了有前途的特性.

研究的目的:

通过使用不同的废物衍生材料,评估垂直流构建湿地 (VFCWs) 的重金属清除效率.
评估HM负载废水处理中的巨型植物的植物修复潜力.
为设计经济高效的CW提供洞察力,用于缩的HM去除.

主要方法:

建筑湿地 (VFCW) 被填充了制 (Jhama),蛋和枣树纤维 (DPF).
处理了含有各种重金属 (As, Cr, Cd, Pb, Fe, Zn, Cu, Ni) 高度的合成废水.
保持3天的液压保留时间,并量化HM清除效率.
种植了巨型植物 *Canna indica* 和 *Hymenocallis littoralis*,以评估重金属的积累.

主要成果:

用DPF填充的CW实现了94.8-98.7%的HM去除;用蛋填充的CW实现了95.4-98.5%的去除.
用Jhama填充的CW显示79.9-92.9%的HM去除,而基于石的系统实现了73-87.6%的去除.
种植的巨型植物在它们的根系中积累了大量的重金属.

结论:

废弃物衍生材料在建筑湿地中去除缩的重金属方面非常有效.
巨型植物表现出相当大的植物修复能力,有助于重金属的吸收.
该研究支持开发具有成本效益和效率的建筑湿地设计,用于处理重金属污染的废水.

关键词:

建筑湿地是建造的湿地.重金属重金属的使用.物理疗法物理疗法物理疗法移除途径的移除途径废物衍生基质废物衍生基质

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