相关实验视频

Updated: Jun 28, 2025

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water

Published on: August 3, 2016

通过不同类型的膜从水中去除多种农药

Mei Qun Seah¹, Zhi Chien Ng¹, Gwo Sung Lai²

¹Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.

|April 11, 2024

概括

自制的反透膜有效地从水中去除了99%以上的农药,性能优于商业选择. 表面的修改增强了它们拒绝农药和盐的能力.

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:

在农业中使用农药对水资源和人类健康构成风险,原因是排水.
有效地从水中去除农药对于环境和公共卫生保护至关重要.
膜过过程,如纳米过 (NF),反透 (RO) 和前透 (FO) 已被探索为净化水.

研究的目的:

为了评估七种不同类型的膜在从水中消除农药的性能.
调查膜表面特性对除草剂清除效率的影响.
为了比较自制的RO膜与商用膜.

主要方法:

测试了七种不同的膜类型,包括两种自制RO膜和五种商业膜 (SW30XLE,NF270,Duracid,FO,BW30).
评估了膜的性能,以排斥多种不同尺寸和LOG K_ow值的多种农药.
分析了膜表面特征的影响,包括水友性介层和纳米板的结合,对排斥率和水流量.

主要成果:

自制的RO膜实现了99%以上的针对性农药的排斥,超过了商业膜.
自制RO膜的增强性能与它们的水友性中间层和内置的纳米薄膜有关.
尽管水流量略低于BW30,但自制的RO膜有效地排斥了单和双价盐,表明了更广泛的适用性.

结论:

膜表面的修改对于有效的农药清除和水处理至关重要.
与商业替代品相比,自制RO膜在消除农药和溶解盐方面表现优越.
该研究强调了定制膜表面特性在处理水处理和海水淡化中应对新出现的污染物的潜力.

关键词:

新出现的污染物引起了人们的关注.纳米过的纳米过方法杀虫剂是一种杀虫剂.逆透是指反透的过程.表面的特性表面的特性薄膜复合膜薄膜是一种复合膜.

更多相关视频

An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter

An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter

Published on: July 13, 2018

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Published on: May 15, 2017

相关概念视频

Detergent Purification of Membrane Proteins

Detergent Purification of Membrane Proteins

Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...

Dialysis

Dialysis

Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...

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.