Comments for Environmental Engineering Diary

Comment on Environmental impact statement and Environmental assessment by Eddie Lopez

Eddie Lopez — Thu, 22 Jul 2010 18:13:12 +0000

Can anyone help.I’m trying to get the word out on our T4C initiative. We help businesses save money on thier telecom and donate a percentage of thier monthly bill to thier favorite charity each and every month.

Comment on Gel Filtration Chromatography: protein fractionation by Durga Kumari

Durga Kumari — Thu, 20 May 2010 14:53:10 +0000

I want to know, how much protein sticks on the SEC columns and how much it comes out?

Comment on Contact by Nathan Kyle

Nathan Kyle — Tue, 20 Apr 2010 06:01:34 +0000

We are interested to increase traffic to your website, please get back to us in order to discuss the possibility in further detail.

Comment on Gel Filtration Chromatography: procedures by Jolu

Jolu — Tue, 13 Oct 2009 15:26:09 +0000

Hi, I want a use a sephacryl S300 to aislate diferent fracction of hidatid liquid. I want to kwon how calibrate the column and how obtain the Chromatogram.

Thank.

JoLu

Comment on Gel Filtration Chromatography: procedures by Nelson Alex

Nelson Alex — Thu, 23 Apr 2009 00:28:51 +0000

You can try getting a XK 16/40 or XK 26/40 from GE healthcare, ths columns come with an adapter so you can pack columns of 40 cm and below.

Comment on Environmental impact statement and Environmental assessment by praveen kumar

praveen kumar — Thu, 05 Mar 2009 12:38:01 +0000

if the present governments acts nothing is happening to environment, we will see wars for drinking water. soon….

Comment on Gel Filtration Chromatography: procedures by Saurabh

Saurabh — Tue, 10 Feb 2009 14:38:05 +0000

I have to prepare a 30 cm column using sephadex g-25. I cannot find an empty column to do this. can you help. I do not need to know the mol wt but just to purify my product from small mol wt impurities. I presently use a 13 cm column which gives me separation but the volume that I can apply is limited. can you suggest something?

Comment on TiO2/UV/H2O2 efficiency in removing organic compounds and color by kemal

kemal — Wed, 05 Nov 2008 13:09:11 +0000

I am now reading “Removal of color substances using photocatalytic oxidation for membrane filtration processes” for deeper understanding of what membrane is capable of. The study was aimed to determine the effectivity of UV/TiO2/H2O2 to remove color. So the technique can remove TOC at 38% and color 400 at 89%. The interesting fact was if the dosage of H2O2 is less than 0.016 M, then the system is accelerated, produce better TOC rejection and color removal, over-dosage (more than 0.016) declines the rejection enhancement. I only get this point, it appears that there is a break point dosage at which best removal can be achieved. However, there is no information yet the comparison between only TiO2/UV and TiO2/UV/H2O2 of the efficiency.

Comment on TiO2/UV/H2O2 efficiency in removing organic compounds and color by kemal

kemal — Wed, 05 Nov 2008 13:08:42 +0000

TiO2 —> (under the presence of UV) TiO2 (e- + h+)
Ti(IV)-OH- + h+ —> Ti(IV) - OH radicals
Ti(IV)-OH2 + h+ —> Ti(IV) - OH radicals

Comment on Environmental Engineering Roots by Autocad Services Atlanta

Autocad Services Atlanta — Sun, 26 Oct 2008 18:10:12 +0000

Didn’t realize that about 1960’s but it makes sense as protecting the environment and utilizing resources becomes more critical.