Related Experiment Video
Updated: Jan 28, 2026
08:33
Functionalization and Dispersion of Carbon Nanomaterials Using an Environmentally Friendly Ultrasonicated Ozonolysis Process
Published on: May 30, 2017
10.6K
Study on ultrasonic techniques for enhancing the separation process of membrane
Ruiyang Zhang1, Yu Huang2, Chunbao Sun1
1School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Ultrasonics Sonochemistry
|March 11, 2019
Summary
Ultrasonic technology enhances membrane separation by increasing permeation flux through cavitation. While effective for cleaning and improving permeability, ultrasound
Area of Science:
- Physical Chemistry
- Chemical Engineering
- Materials Science
Background:
- Membrane separation is a crucial industrial process.
- Enhancing membrane performance and longevity is an ongoing challenge.
- Ultrasonic technology offers a potential solution for improving membrane separation efficiency.
Purpose of the Study:
- To analyze the mechanism of ultrasound-enhanced membrane separation.
- To investigate factors influencing ultrasonic effects on membrane performance.
- To review the application and progress of ultrasonic technology in membrane separation.
Main Methods:
- Analysis of cavitation effects induced by ultrasonic radiation.
- Study of sound intensity, temperature, and operating pressure impacts.
- Investigation of membrane assembly shell material influence.
- Assessment of ultrasound's effect on membrane structure.
Main Results:
- Cavitation is the primary driver for increased permeation flux in dextran solutions.
- Higher sound intensity aids in membrane cleaning.
- Ultrasound enhancement is temperature and pressure-dependent.
- Membrane assembly shell material affects ultrasonic efficacy.
Conclusions:
- Ultrasonic action improves membrane permeability.
- Potential for membrane damage exists with ultrasound application.
- Ultrasonic techniques show promise for enhancing membrane separation processes.
Related Concept Videos
03:00Self-Evaluation: Self-Enhancement and Self-Verification
5.8K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.8K
01:16Bioavailability Enhancement: Drug Solubility Enhancement
255
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
255
01:27Bioavailability Enhancement: Drug Permeability Enhancement
197
Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
197
02:17Separation of Sister Chromatids
4.5K
At the transition from prophase to metaphase, there is a reduction in cohesion along the chromosomal arms, resulting in the resolution of sister chromatids. However, residual cohesin connections remain to hold the sister chromatids together until the transition from metaphase to anaphase. The residual connection prevents any premature separation of sister chromatids, blocking the risks of aneuploidy within the daughter cells.
At the onset of anaphase, separase, a proteolytic enzyme, is...
At the onset of anaphase, separase, a proteolytic enzyme, is...
4.5K
01:15Optimizing Chromatographic Separations
988
Optimizing chromatographic separations is crucial for obtaining clean separations in a minimum amount of time. Optimization is required for several factors, including kinetic effects related to band broadening, plate height, capacity factor, and separation factor.
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
988
01:05Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
206
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
206