相关实验视频

Updated: Jul 11, 2025

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

在受污染的水中,的吸附回收是通过从消耗的咖啡粉中提取的经过改性生物炭

Ying Liu¹, Shuyan Wang¹, Jiangbo Huo¹

¹Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China.

The Science of the total environment

|November 9, 2023

概括

这项研究开发了一种从消耗的咖啡粉中获得的新修饰生物炭,以有效地从水中去除. 该材料具有很高的吸附能力和恢复资源的潜力.

科学领域:

环境化学环境化学
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:

酸盐回收对于减轻水的高化和解决稀缺问题至关重要.
传统的去除方法往往面临效率和成本效益的局限性.

研究的目的:

开发和表征一种新的修饰生物炭 (MBC),用于有效地从水溶液中去除.
调查吸附能力,在不同条件下的性能,以及MBC用于回收的潜在机制.

主要方法:

消耗的咖啡粉被转化为生物炭,并用化 (CaCl2) 进行修改.
进行了批量吸附实验,以评估去除效率和吸附能力.
进行了动力学,热力学和特征分析 (例如,表面沉,复杂化,连接物交换).

主要成果:

对MBC的最佳修饰剂度为1.5M CaCl2,产生70.26 mg/g的最大吸附能力.
在广泛的pH范围 (3-11) 和各种度下,MBC表现出有效的去除 (> 50%).
吸附动力学遵循低度的伪第一阶,高度的伪第二阶;这个过程是自发的和内热的.

结论:

从消耗的咖啡粉中提取的经过改性生物炭是一种有前途的吸收剂,可以有效地从废水中回收.
该研究阐明了关键的吸附机制,包括表面沉,复杂化和连接体交换.
这种生物炭提供了一种可持续的方法来解决水污染和资源管理问题.

关键词:

吸附方式吸附方式吸附方式机理机制机理机制修改后的生物碳是一种的物质.消耗的咖啡粉已经用完了.

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

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

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.

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.