相关实验视频

Updated: Jun 12, 2025

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

优化了三种可生物降解的合剂去除土壤的效率

Jiajia He¹, Ruidong Mi², Zilin He¹

¹Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Sichuan, 611130, China.

|September 24, 2024

概括

这项研究探讨了可生物降解的化剂,用于从土壤中去除 (Cd). PMAS,EDTMPS和GLDA展示了有希望的结果,为重金属土壤整治提供了环保的解决方案.

科学领域:

环境科学环境科学
土壤化学土壤化学
整治技术的整治技术

背景情况:

工业活动和农业造成的 (Cd) 污染会降低土壤的质量,并对健康构成威胁.
目前用于去除Cd的化学液剂的效率有限.
开发有效的,环保的洗剂对于土壤整治至关重要.

研究的目的:

评估三种生物降解化剂:PMAS,EDTMPS和GLDA,用于从土壤中去除.
通过响应表面方法来优化这些剂的土壤浸过程.
找出有效和环保的替代品,以传统的液剂.

主要方法:

进行了单因子实验,以评估合剂度,水时间和pH的影响.
基于响应表面方法 (RSM) 的Box-Behnken设计 (BBD) 用于过程优化.
进行了验证测试,以确认优化条件的可靠性.

主要成果:

对于每个药物,确定了Cd去除的最佳条件:PMAS (7%度,pH3.61,180分钟),EDTMPS (4.94%度,pH3.0,180分钟) 和GLDA (4.96%度,pH3.0,180分钟).
验证测试显示,与实验值的偏差不到3%,证实了RSM优化的准确性.
该研究成功地确定了使用选择的可生物降解剂去除Cd的有效参数.

结论:

可生物降解的化剂PMAS,EDTMPS和GLDA对从污染的土壤中去除有效.
响应表面方法提供了一种可靠的方法来优化土壤浸过程.
这项研究为开发具有成本效益和环保的重金属修复策略提供了宝贵的参考资料.

关键词:

可生物降解的化剂.化学物质浸出了土壤中的水分.响应表面方法响应表面方法土壤 Cd 污染污染

更多相关视频

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

Published on: December 17, 2018

Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate

Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate

Published on: January 20, 2023

相关概念视频

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...

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.

Masking and Demasking Agents

Masking and Demasking Agents

EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...

Voltammetry: Stripping Methods

Voltammetry: Stripping Methods

Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...