Tobias Hey

Hi!

Thank you very much for your fast reply.

I have tried as you recommended and tried other controllers and "overdosed" Fe into the stream but neither me nor my colleague (he works with post-precipitation) can get a precipitation.
Do we need a "reaction chamber" or similar or does it "react" immediately.

Do you have a very simple example for us (we can download from somewhere or can you send us a project) where one can see a change in the y_PO before and after adding Fe?

Thank you very much in advance.

Tobias

Hi again!

I was wondering about the Fe-dosing for P-removal.

I have tried alot now but I cannot see any change in the P-removal even if I enter utopic numbers but there is not any change in the TP, S_PO concentration.

I try to control the P-removal with a PO4-sensor linked to the FeOH-tank and tell the controller that PO4 should be 0.5 after adding the FeOH.

Can you explain very briefly how to set up a good pre-precipitation with the Fe-dosing unit?

Thank you very much in advance.

Tobias

Hi
ASM2d has FeCl3 precipitation (I found it - Thank you!).

However, by using ASM2d I cannot apply the Anaerobic Digester (Sludge Treatment) which I can only do if I use ASM1Temp (therefore I did not find the Iron-button).

Regards
Tobias

Hi!

I am using WEST 2014 (SP1) and setting up a full-scale WWTP with post-precipitation (FeCl3).
I am wondering if there is an icon for chemical addition available where one can select the precipitant?
I know it is available for C-source but not for e.g. P-removal.

Somebody can either confirm or clearify?
Thank you very much in advance.

Tobias, Sweden