Archive for the ‘Membrane Theses’ Category

Fouling as membrane shortcomings

Friday, June 15th, 2007

I do not care if this post will contain only a couple hundred words. I just found an interesting definition of cake formation on the membrane surface. As you probably aware, this cake formation along with pore blockage, concentration polarization have caused fouling, sort of clogging in conventional filter, which ...

Does TiO2 coating form denser pore size?

Sunday, June 10th, 2007

Interesting question is raised because that result that what I have got. Interesting, in one side it is known that the coating of TiO2 has caused higher affinity of membrane surface. In my opinion higher affinity, more or less, means higher permeability, higher chance that more water passes the pore ...

About ultrafiltration: introduction

Thursday, June 7th, 2007

Combine with microfiltration, ultrafiltration (UF) is a low pressure membrane. UF is usually used for potable water treatment, biological wastewater treatment and also for ultrapure water production. The latter is common method for metal or electronic industries. UF typically operates within 40-1000 kPa (5.8-145 psi) (0.4-10 bar) having molecular weight ...

Summary of my theses

Wednesday, June 6th, 2007

Well, as I have written several ideas in a very old posts, such as UF fractionation, TiO2 coating, photocatalysis effect to molecular weight distribution including gel filtration chromatography, now I want to summarize what I have done and brief result.

Gel Filtration Chromatography: protein fractionation

Friday, April 13th, 2007

Well known as GFC, this is usually used to fractionate protein. It is based on molecular size, when larger particles will eluete first, followed by smaller molecule. In my experiment, I will employ this to fractionate humic substance. There are several points from which the method in using this GFC. ...

Further Effect of Photocatalysis toward organic particles size distribution

Friday, April 6th, 2007

I have mentioned several information on my post about the effect of photocatalysis process to particle size distribution. Now in this post, I would like to a little bit further explain it more as I am really courious about this.

Photocatalysis effect for organic particle distribution

Thursday, March 29th, 2007

In this post, I would like to focus the effect of photocatalysis, in this case represented by Titanium dioxide and UV irradiation for organic particle distribution, which is natural organic matter, represented by Dissolved Organic Carbon, humical acid. I would like to know which organic particle size in responsible for ...

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