相关实验视频

Updated: Jul 20, 2025

Multimodal Analysis of Microplastics in Drinking Water using a Silicon Nanomembrane Analysis Pipeline

Multimodal Analysis of Microplastics in Drinking Water using a Silicon Nanomembrane Analysis Pipeline

Published on: June 13, 2025

在固定床柱试验中,从水中清理微塑料和重金属,使用朱树废物衍生的生物炭

Munir Ahmad¹, Nahrir M A Lubis¹, Muhammad Usama¹

¹Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Kingdom of Saudi Arabia.

Environmental pollution (Barking, Essex : 1987)

|August 6, 2023

概括

柔果衍生生物炭 (BCs) 有效地从水中去除尼龙和聚乙烯等微塑料 (MPs),较高的温度产生更好的结果. 这些MP装载的生物炭还可以增强除和等重金属的去除.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
水处理技术水处理技术

背景情况:

塑料制品造成的微塑料 (MP) 污染对环境构成重大威胁.
传统的水处理方法在清除MP时的效率有限.
来自生物质的生物炭 (BC) 被探索为可持续的吸附材料.

研究的目的:

评价豆生物质衍生生物炭 (BCs) 对于从污染水中去除尼龙 (NYL) 和聚乙烯 (PE) 微塑料的效率.
为了研究MP装载的BCs在去除重金属 (Pb(II) 和Cd(II)) 的性能.
了解BCs保留MP的机制.

主要方法:

固定床柱试验是使用在300°C (BC300) 和700°C (BC700) 时从玉树生物质中产生的生物碳进行的.
在7.0的最佳pH值下评估了MP去除效率.
使用MP修改的BCs研究重金属 (Pb(II),Cd(II)) 吸附,并应用托马斯模型进行容量预测.

主要成果:

无论是BC300还是BC700,都实现了99%以上的NYL和PEMP去除,显著优于沙子过器 (最大78%).
BC700的MP保留率比沙过器高33倍,而BC300的MP保留率比沙过器高20倍.
与沙相比,装载MP的BC700表现出Pb (II) 和Cd (II) 清除的延长突破时间,并具有托马斯模型预测的高吸附能力.

结论:

朱果废物衍生生物炭是高效的吸附剂,可以从水中去除尼龙和聚乙烯微塑料.
火解温度显著影响BC效率,更高的温度产生更好的MP去除.
装有MP的生物炭可以进一步用于增强共存重金属的去除,提供可持续的环境修复解决方案.

关键词:

固定床的柱子固定床的柱子微塑料是一种微塑料.污染污染污染移除机制移除机制矢量矢量是一个向量.

更多相关视频

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Published on: November 28, 2014

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

相关概念视频

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

Silica Gel Column Chromatography: Overview

Silica Gel Column Chromatography: Overview

Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...

Testing Water Quality

Testing Water Quality

When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...