The present invention relates to a proton exchange membrane, a method for preparing said membrane, and the use of said membrane in fields requiring ion exchange, such as effluent purification and electrochemistry, or in the fields of energy. In particular, this membrane is used in the design ...
However, unsep- arated flocs after the coagulation process typically collect at the surface of the membrane and form a cake layer containing many bacteria, which together with their associated extracellular polymeric substances (EPS), can lead to both reversible and irreversible membrane fouling. ...
Download:Download full-size image Introduction In recent years, membrane separation technology has been studied and used widely because of its lower chemical reagent dosage and better interception performance [1], [2]. Nevertheless, membrane fouling generally occurs in forms of foulant adhesion or dep...
Atomic force microscopy (AFM) analysis provided in-situ evidence that the reduced surface pore size of the grafted membrane with the solution pH governed such a dependence. It was proposed that, the reduced surface pore size was caused by the swelling of the grafted chain matrix, with the pH...
On the other hand, in the VIPS step, the water intake on the top skin causes many breathing points (nucleation points) which form the membrane pores. At first, the number of these points increases to reach the maximum, after that, these nucleation points join each other and form larger ...
Hongda was founded in 1999 and it is a professional manufaturer of high-performance plastics in the form of semi-finished products and finished parts.The products sell well throughout the country and exported to more than 20 countries&areas, which are widely used in chemical industry, semiconducto...
Hongda was founded in 1999 and it is a professional manufaturer of high-performance plastics in the form of semi-finished products and finished parts.The products sell well throughout the country and exported to more than 20 countries&areas, which are widely used in chemical ...
Membrane Structure is known as the Tensioned Membrane Structure, which is the most representative and promising architectural in the 21st century. Breaking the pattern of pure linear architectural style, with its unique beautiful surface shape, the perfect combination of simplicity, brightness...
S3. Prior to the experiments, a control experiment using a pristine PVDF membrane was conducted for each pollutant to check if the PVDF contributes to adsorption. The results shown in Fig. S1 suggest that the contribution of PVDF is less than 5% for both pollutants. During the operation, 20...
In addition, when a large amount of hydrophilic polymer is added to a membrane-forming stock solution, the solution becomes unstable and less likely to form a bi-continuous structure [42]. Membranes obtained from a stock solution in which PVDF was dissolved in DMAc with polymers that had ...