高沸点有机溶剂的度通过透辅助的反透
Mengyang Hu1, Kazuo Kumagai2, Yasushi Mino3
1Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodaicho, Nada, Kobe 657-8501, Japan.
Water research
|June 4, 2025
概括
透辅助反透 (OARO) 有效地从废水中缩高沸点有机溶剂 (HBOS),如DMF. 这种可持续的OARO方法可以有效地回收和重复使用溶剂,减少环境影响和成本.
科学领域:
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
- 分离科学 分离科学
背景情况:
- 高沸点有机溶剂 (HBOS) 在工业中广泛使用,但存在处置挑战.
- 来自HBOS使用的废水导致环境问题和高管理成本.
- 回收HBOS对于可持续的工业实践至关重要.
研究的目的:
- 调查透辅助反透 (OARO) 的有效性,以集中和处理HBOS废水.
- 评估操作参数对OARO溶剂回收过程的影响.
- 开发OARO过程的预测模型并评估其长期稳定性.
主要方法:
- 利用透辅助逆透 (OARO) 处理含有N,N-二甲基形式胺 (DMF),二甲基硫氧化物 (DMSO),N,N-二甲基乙胺 (DMAc) 和N-甲基-2-罗利 (NMP) 的废水.
- 系统地调查操作参数,包括流量,施加压力和膜模块配置.
- 开发并验证了OARO过程的模拟模型.
- 进行了长期运行稳定性测试,并处理了真正的工业废水.
主要成果:
- 更高的操作压力和减少的流量增加了DMF度.
- 大约18个月,OARO工艺表现出稳定的运行.
- 实际的DMF废水被集中了大约42倍,实现了高效的回收.
结论:
- OARO是一种高度有效的策略,用于集中和处理HBOS废水.
- 开发的模拟模型准确地预测了OARO过程性能.
- 在工业应用中,OARO为HBOS回收,回收和再利用提供了实用和可持续的解决方案.
更多相关视频
07:05Author Spotlight: Eco-Friendly Extraction of Bioactive Compounds Using Polyol-Based Microwave-Assisted Techniques
Published on: August 23, 2024
2.0K
09:39Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
Published on: March 1, 2020
7.5K
相关概念视频
02:40Osmosis and Osmotic Pressure of Solutions
41.6K
A number of natural and synthetic materials exhibit selective permeation, meaning that only molecules or ions of a certain size, shape, polarity, charge, and so forth, are capable of passing through (permeating) the material. Biological cell membranes provide elegant examples of selective permeation in nature, while dialysis tubing used to remove metabolic wastes from blood is a more simplistic technological example. Regardless of how they may be fabricated, these materials are generally...
41.6K
01:30Osmosis
7.9K
Osmosis is the movement of free water molecules through a semipermeable membrane. The water's concentration gradient across the membrane is inversely proportional to the solutes' concentration. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane, and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion.
Water, like other substances, moves from a high concentration of...
Water, like other substances, moves from a high concentration of...
7.9K
02:56Intermolecular Forces and Physical Properties
22.9K
22.9K
03:12Freezing Point Depression and Boiling Point Elevation
36.0K
Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
36.0K
02:05Entropy and Solvation
7.2K
The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ...
7.2K
01:12Solvents
67.5K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
67.5K