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在使用渣建造的浮动和垂直流动湿地中去除营养物质:一种创新的方法来缓解环保变质

Yamini Mittal¹, Pratiksha Srivastava², Naresh Kumar³

¹Ingenieurgesellschaft Janisch & Schulz mbH, Münzenberg 35516, Germany; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, Odisha 751013, India.

Bioresource technology

|August 3, 2024

概括

这项研究开发了来自工业废物的酸盐渣 (Ca-Alg-Al渣) 珠,以从废水中去除酸盐和. 这种新材料有效地处理污染水,显示出显著的营养物质去除和抑制藻类生长.

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:

由于营养污染导致的缩,是全球对水质的重大威胁.
工业废物如渣 (AD) 提出了处置挑战,但为资源回收提供了潜力.
现有的废水处理方法往往在效率和运行条件方面面临限制.

研究的目的:

从渣 (AD) 开发一种增值材料,以有效地从废水中去除和.
通过固定化克服AD的操作挑战,例如其粉末形式和pH依赖性.
评估开发材料在不同构建湿地系统中的有效性,以修复受污染的水生生态系统.

主要方法:

渣 (AD) 在藻酸盐中固定,形成藻酸盐渣 (Ca-Alg-Al渣) 珠.
两种系统进行了测试:垂直流构造湿地 (VF-CWs) 具有固定的Ca-Alg-Al渣珠床和浮式构造湿地 (FCW) 具有安装的Ca-Alg-Al渣珠.
评估了废水处理效率,并评估了处理水抑制藻类生长的潜力. 使用SEM-EDX和FTIR进行了表面表征.

主要成果:

随着VF-CW和Ca-Al-Al渣珠的使用,最大的酸盐和氨去除率分别为85%和93.44%.
使用Ca-Alg-Al渣珠的FCW系统显示,最大的酸盐去除率为79.18%,氨去除率为65.45%.
来自FCW系统的处理水成功抑制了藻类的生长,SEM-EDX和FTIR证实了离子交换,静电吸引和连接体复杂化作为去除机制.

结论:

在藻酸盐中固定渣,可以产生有效的珠子,用于从废水中去除和.
在VF-CW和FCW系统中,Ca-Alg-Al废料珠显示出高效率,提供可持续的废水处理解决方案.
这种方法为利用工业废物 (AD) 在高价值的环境应用中提供了一个有前途的方法.

关键词:

吸附方式吸附方式吸附方式在Ca-Alg-Al渣珠的发展过程中,建造的湿地建造的湿地欧洲化是什么意思?林生态系统的整治工作基于自然的废水处理方法 P 恢复恢复恢复

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