Archive for March, 2007
Thursday, March 15th, 2007
I found this very interesting to find out, how to quantify potential loss, societal cost due to gas emission from our transportation. Let's do the math now!
Posted in Environmental Diary, News and Issues | No Comments »
Wednesday, March 14th, 2007
Right, I am trying to list here what I am planning to do within short time:
At the moment, I am cleaning my all membranes after TiO2-UV batch: 1 kD, 15 and 50 kD, two pieces for each.
Posted in Membrane Theses | No Comments »
Tuesday, March 13th, 2007
There are various methods available to coat TiO2 onto the surface of the membrane. I will explain briefly some of them, and the method I used.
Ion assisted deposition
This method was used for coating on super-hydrophobic porous teflon membrane. The author stated that the coating of TiO2 by the chemical wet ...
Posted in Membrane Theses, Paper Review | No Comments »
Sunday, March 11th, 2007
Impure water is a water that contaminated by unwanted elements. It can be particles, colloids, debris. Of course, for both drinking water or clean water for household activities, these impurities are not wanted. Thus, it is important for us to treat source water to remove these elements. That is why ...
Posted in Environmental Engineering I | No Comments »
Saturday, March 10th, 2007
The result of my experiment employing TiO2-UV was not satisfying. In terms of flux, TiO2-UV membrane showed severe decline after 30, 60, and around 90 minutes. Not only that, the rejection of membrane coated by TiO2 under UV exposure was lower than naked membrane. This probably due to smaller ...
Posted in Membrane Theses | No Comments »