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增强玉米叶纤维作为吸附材料

Fidelina T Flores^1,2, Gopu Nair¹, Jorge A Guzman¹

¹Department of Agricultural and Biological Engineering, College of Agricultural, Consumer and Environmental Sciences, The Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois, USA.

Water environment research : a research publication of the Water Environment Federation

|April 29, 2025

概括

这项研究开发了一种可持续的方法,使用处理的玉米叶纤维从农业排水中去除溶解的. 用考利尼特粘土和碳酸增强纤维显著提高了其吸附能力.

科学领域:

环境科学环境科学
农业工程农业工程
材料科学材料科学材料科学

背景情况:

来自农业排水的溶解 (P) 导致水污染和肥胖.
农业系统需要可持续和高效的P去除技术.
农业废弃物利用为P.管理提供了一个潜在的解决方案.

研究的目的:

评估玉米叶纤维作为溶解的吸附剂的潜力.
为了优化玉米叶纤维的取.
为了提高玉米叶纤维的吸附能力,使用添加剂.

主要方法:

玉米叶被用氧化 (NaOH) 溶液 (5-15%) 在不同温度 (85-95°C) 和时间 (60-120分钟) 处理以提取纤维.
考利尼特粘土和碳酸被添加到提取的纤维中,以创建增强的吸附剂.
进行了吸附试验,以测量酸盐度的减少.
能量分散式X射线光 (EDXRF) 用于材料分析.

主要成果:

最佳的纤维回收率 (45.18%) 是通过在85°C下使用10%的NaOH在60分钟内获得的.
仅玉米叶纤维就能在60分钟内将酸盐降低8.75%
增强纤维 (30%的高酸粘土,35%的碳酸) 在60分钟内将酸盐减少了79.40%.
EDXRF证实了吸附剂后处理中的存在.

结论:

取的玉米叶纤维是一种有希望的低成本吸附剂,用于去除.
使用考利尼特粘土和碳酸增强显著提高了吸附效率.
利用农业废物进行P清除符合循环经济原则和可持续农业.

关键词:

提取的提取方法玉米叶纤维玉米叶纤维考利尼特粘土的陶土是什么?吸附是一种的吸附方式.

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相关概念视频

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.