Can we consider SEM (Scaning Electron Microscope) technique as a useful one to visualise fouling layers on reverse osmosis membranes ?

I'm trying to visualise fouling layers (biofouling, organic, inorganic and colloidal) on reverse osmosis membranes. Do you think SEM technique is a practical one? are there better...

10 November 2019 6,610 4 View

Can I patent a model used for chemical process based on previous models but with major modifications ?

Is it possible to patent a mathematical (with algorithm ) model used for variables calculation of a chemical process, knowing that there are different models patented for the same chemical process...

05 November 2019 2,741 8 View

What are the typical values for Mass transfer k in concentration polarization in reverse osmosis Desalination ?

I'm looking for the typical values for Mass transfer k used in the calculation of concentration in membrane wall (cases of spiral wound and flat membranes)

28 April 2019 2,579 3 View

What are the values of water and salt permeabilities in common reverse osmosis membrane for desalination (filmtec membranes for instance) ?

What are the values of water and salt permeabilities in common reverse osmosis membrane for desalination ? (filmtec membranes for instance) I need precise values as much as possible. Thank you.

18 January 2019 5,590 3 View

Hi everyone, I'm an engineer looking for a topic to start my thesis in the field of wastewater treatment modelling, can you give me any suggestions ?

Topic for a PhD thesis in the field of wastewater treatment modelling.

20 December 2017 5,971 6 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

What is the procedure to determine the permeability of concrete?

can anyone help me in this, it will help me with my research work

01 March 2021 834 3 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

Cloudy/high background western blot - can anyone help me?

Hi everyone! I try to detect VDR protein (~48 kDa) using Western Blot. After SDS-PAGE using 10% MP TGX Stain-Free Gel from BioRad I transferred the protein onto an metOH activated PVDF membrane...

23 February 2021 6,266 3 View

Protocol for membrane extraction E. coli?

Hello! I am interested in determining whether a poly-unsaturated fatty acid I have engineered E. coli to produce is being incorporated into the membrane of the cells or if it is simply a free...

21 February 2021 7,447 2 View

How to model in HFSS or FEKO Free Space Material Characterization?

I am having trouble setting up this problem in HFSS or FEKO. In HFSS, I've tried both FEM and FEBI-IE solvers. With FEKO, I've tried it's MoM solver and default settings. I am would like model...

09 February 2021 375 2 View

How can I convert permeability unit from barrer to m^2 for using COMSOL MultiPhysics?

I am looking for gas permeability of PDMS for simulation in COMSOL MultiPhysics and using creeping flow , fluid and matrix properties. The permeability unit in COMSOL is m^2 whereas I have the...

08 February 2021 4,305 2 View

How do you prepare a porous crosslinked Polyvinyl alcohol and Glutaraldehyde membrane or film?

I am trying to prepare a Polyvinyl alcohol membrane for carbondioxide adsorption

08 February 2021 7,493 3 View

Background and spots in Western Blot membrane?

Do you know why my membrane looks like this? I did this western for Anti-hnRNP D/AUF1 antibody ab50692, as primary antibody in 1:1000 overnight at 4c and Anti-rabbit IgG HRP linked antibody...

07 February 2021 5,591 4 View