相关实验视频

Updated: Jul 27, 2026

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Published on: July 4, 2014

在异质地下水系统中,化学剂对LNAPL的移位的孔尺度可视化

Yan Li¹, Tao Long¹, Hangyu Li²

¹Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China.

The Science of the total environment

|February 15, 2025

概括

一个新的微流体平台有效评估了地下水修复剂. 绿色溶剂Cyrene在具有挑战性的低透性区域中显示出优异的脱油能力,提供了一个有前途的可持续解决方案.

科学领域:

环境科学环境科学
化学工程是化学工程的重要组成部分.
地质地质地质地质地质地

背景情况:

淡非水相液体 (LNAPLs) 污染地下水是一个持续的环境问题.
不同质的含水层和低透性的区域对传统的修复技术构成重大挑战.
有效的LNAPL修复需要了解复杂的地下环境中的孔尺度移位机制.

研究的目的:

开发和验证用于模拟异质多孔介质的微流体平台.
评估化学剂的性能,包括生物溶剂Cyrene,用于LNAPL修复.
调查水表异质性对排水效率和剩余油和度的影响.

主要方法:

开发一个微流体平台来模拟异质多孔介质.
实时可视化毛孔尺度流体移位过程.
使用灰色值方法量化剩余油和度 (S_或).
对包括Cyrene在内的四种化学修复剂的比较性能分析.

主要成果:

与传统剂相比,Cyrene的脱油效率 (30-45%) 显著提高.
微流体平台成功地可视化了孔尺度移位动态.
透性和孔隙结构被确定为影响修复有效性的关键因素.
锡林在透性较低的区域表现出特别高的效果,克服了传统方法的局限性.

结论:

锡林为地下水LNAPL修复提供了一个可扩展和环境有利的选择.
开发的微流体平台为地下移位机制提供了宝贵的见解.
了解孔尺度过程对于优化异质含水层的修复策略至关重要.

关键词:

绿色整治绿色整治不同质的多孔介质.污染LNAPL污染情况微流体学微流体学油位移油位移油位移油位移油位

更多相关视频

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Published on: October 21, 2016

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

相关概念视频

Plane Potential Flows

Plane Potential Flows

Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform Flow
Uniform flow...

Pipe Flowrate Measurement: Problem Solving

Pipe Flowrate Measurement: Problem Solving

A spray tank system is engineered to uniformly distribute a pest-control liquid across plants by using a pressurized mechanism. The tank, pressurized to 150 kPa, holds the pesticide at a height of 0.80 meters. Liquid flows from the tank through a 1.9 meter pipe with a diameter of 0.015 meters, angled at 0.698 radians, ultimately reaching a 0.007 meter nozzle that sprays the pesticide. Accurate calculation of the system's flow rate is crucial to ensure uniform application, and this is achieved...