Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Strong Acid and Base Solutions03:22

Strong Acid and Base Solutions

35.6K
A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial concentration of acid. For example, 0.20 M hydrobromic acid will dissociate completely in water and produces 0.20 M of hydronium ions and 0.20 M of bromide ions.
35.6K
Weak Base Solutions03:21

Weak Base Solutions

25.1K
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
25.1K
Bonding in Metals02:32

Bonding in Metals

52.4K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
52.4K
Alkali Metals03:06

Alkali Metals

24.6K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
24.6K
Leveling Effect and Non-Aqueous Acid-Base Solutions02:11

Leveling Effect and Non-Aqueous Acid-Base Solutions

9.4K
This lesson defines the leveling effect in acidic and basic solutions and its role in aqueous and non-aqueous solutions. It is essential to understand the competing nature of various species in a chemical system.
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):
9.4K
Solution Composition During Acid/Base Titrations01:17

Solution Composition During Acid/Base Titrations

1.6K
The titration of a weak acid with a strong base results in the formation of water and the conjugate base of the acid. For instance, titrating acetic acid with sodium hydroxide leads to the formation of water and sodium acetate. A solution of acetic acid and sodium acetate constitutes a buffer whose relative concentration at different stages of the titration is indicated by the α values, which represent percentages of the weak acid and its conjugate base.
The α0 and α1 values...
1.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Linking (Poly)Tungstate Speciation to Toxicity and Bioaccumulation in <i>Daphnia magna</i>.

Environmental science & technology·2026
Same author

Redox-Driven Fe Atom Exchange at the Magnetite-Water Interface: Insights from <sup>57</sup>Fe-Mössbauer Spectroscopy and First-Principles Molecular Dynamics Simulations.

Environmental science & technology·2025
Same author

Mechanism for the decrease of Cd uptake and transport within wheat plants in the presence of dissolved Fe(II).

Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine·2025
Same author

Prediction of heavy metal contamination in soil-groundwater systems at contaminated sites.

Environmental technology·2025
Same author

Experimental Investigation of Cadmium Isotope Fractionation during Adsorption on Montmorillonite and Kaolinite.

Environmental science & technology·2025
Same author

First Insight into the Mobilization and Sequestration of Arsenic in a Karstic Soil during Redox Changes.

Environmental science & technology·2024

相关实验视频

Updated: Jan 31, 2026

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae
10:20

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Published on: July 10, 2015

16.5K

基于模型的重金属修复解决方案的多目标优化

Chao Li1,2, Adam J Siade3,4, Henning Prommer5

  • 1State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.

Environmental science & technology
|January 30, 2026
PubMed
概括

这项研究引入了一个新的框架,将反应式运输模型 (RTM) 与多目标粒子群优化 (MOPSO) 结合起来,以有效地修复现场. 它优化了重金属清理成本,时间和污染减少之间的权衡.

关键词:
帕雷托-最佳解决方案重金属污染 污染重金属污染多目标优化优化粒子群集优化 粒子群集优化反应式运输模型的反应式运输模型.整治策略的整治策略.

更多相关视频

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.9K
Electrospinning Fundamentals: Optimizing Solution and Apparatus Parameters
07:57

Electrospinning Fundamentals: Optimizing Solution and Apparatus Parameters

Published on: January 21, 2011

65.8K

相关实验视频

Last Updated: Jan 31, 2026

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae
10:20

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Published on: July 10, 2015

16.5K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.9K
Electrospinning Fundamentals: Optimizing Solution and Apparatus Parameters
07:57

Electrospinning Fundamentals: Optimizing Solution and Apparatus Parameters

Published on: January 21, 2011

65.8K

科学领域:

  • 环境科学 环境科学
  • 环境工程 环境工程
  • 计算科学 计算科学

背景情况:

  • 网站修复通常涉及主观的决策,没有正式的优化.
  • 与资源限制平衡整治绩效,存在复杂的权衡.

研究的目的:

  • 开发一个非主观的框架来优化场地修复策略.
  • 将一个反应式运输模型 (RTM) 与多目标粒子群优化 (MOPSO) 集成.

主要方法:

  • 一个反应式运输模型 (RTM) 模拟了反 (Sb) 的命运,与现场数据进行了验证.
  • RTM与MOPSO相结合,优化了四个目标:污染物度,场外迁移,成本和时间.
  • 对于一个被Sb污染的地点,考虑了物理化学处理和生物修复.

主要成果:

  • 优化整治需要在热点协调密集的物理化学治疗,并在较低风险的区域进行经济的生物修复.
  • 通过明智地针对热点来控制场外迁移.
  • RTM-MOPSO方法比传统的缩放方法产生了更多样化的帕雷托前线.

结论:

  • RTM-MOPSO框架提供了一个务实的,数据驱动的方法来优化现场整治.
  • 这种方法广泛适用于重金属污染挑战,平衡技术和实际因素.
  • 该框架在复杂的环境清理场景中促进了知情决策.