I'm a project engineer involved in the design of water treatment plants (Cooling and process water) for the steel making area.
I'm looking for informations regading the design of cooling towers.
I'd like to cerate a spredsheet for the design of cooling towers but I can't find any information...
Hi Doug
Thank you very much for your replay, It was interesting but I think that the people have to consider the CV befor judge. I'm graduated in Chemistry and my background was before in a research and development. Research in a polymer field by pilot plants (semi industrial plant). I was and...
Hi
I'd like to work in US or Canada as Process Engineer, I'm from Italy and I'd be very glad to find something in those Countries.
I'm graduated in Chemistry and I worked for 3 years as a research chemist.
After this I moved to an engineering company as a process and proposal engineer in the...
Hi Cryotechnic
In my job experience in the water treatment plants design I made this kind of plants.
This is a good way for saving water, but it's expensive.
The process is:
1- Pretreatment: The best is a clariflocculation to remove the colloids.
2- Filtration by sand-anthracite filters to...
I'd like to recive some informations regarding potable water storage tanks.
In a water treatment plant designed for Saudi Arabia we installed a hot deep galvanising tank for potable water storage. This tank has inside a butyl rubber liner.
Now after few months the tank has some leaks.
I don't...
I'd like to recive some informations regarding potable water storage tanks.
In a water treatment plant designed for Saudi Arabia we installed a hot deep galvanising tank for potable water storage. This tank has inside a butyl rubber liner.
Now after few months the tank has some leaks.
I don't...
Hi Soapy 73
Thank you for your replay.
My meeting with a PHE supplier was Tranter.
Let me explain if I understood the problem:
In the design of PHE the main equation is Q = Ud*A*DTML, where Ud is the overall termal coefficient. The overall termal coefficient must follow this relationship: 1/Ud -...
Hello to all
I would like to recive some information about the design of plate heat exchangers.
Last week I had a meeting with a PHE supplier in order to buy PHE for cooling water pourposis. During the meeting we were discussing about the fouling factor. This supplier told me that in their...
hi madhusmile
first you will know what is the diluition of polymer.
Polymers are so viscous so it's necessary to make a diluition.
For example if the polymer solution after diluition is 0.1% for dimensioning the pump the calcolus is:
700 gpm = 159 m3/h 5 ppm = 5 g/m3
153m3/h x 5g/m3 =...
Hi Rodrigo
Probabily my plant was different about your, but I remembre that we did this syinthesis and we had not some problems.
The plant was a pilot plant 150 L. We putted the glycols and after the acid, it's also importatnt the molar excess of glycols to acid.
Our column was a packet type...
Hello Rodrigo
I had worked for a polyester production plant for three years in the past and I was involved in a R&D. I did a lot of synthesis in pilot plants to produce new types of polyesters and I tried a lot of glycols and catalyst.
I know what you whant to produce, a ployester with low...
Hello
Let me know a confirm concerning demin water, the pH of demin water after the DW process (SAC and SBA) is pH =7.
I know the pH misure for DW is not a verry good and it's better the Conductivity determination. But the pH will be drop for a CO2 dissolution and produce H2CO3? Is this...
Hello MMMX
As you know the most frequently used technique for chrome removal is a two stage chemical treatment process. The first stage lowers the pH and adds reducing agents to convert the chrome from soluble Cr+6 to Cr+3.
The second stage neutralizes the wastewater, forming Cr(OH)3 which can...
