hydraulic retention time

[vincent.gregorio@epfl.ch]

Hello,

I have an another question about great-er when we use simple treat in mode 2. I
don't understand how the model take in count the hydraulic retention time in
WWTP? in SimpleTreat this parameter exists but not in great-er...

It would be nice if you can bring some explanation!

Thanks a lot!
Best wishes,
Vincent