SWMM-USERS Digest - 13 Jun 2008 to 14 Jun 2008 (#2008-107)
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Topics of the day:
1. Decay coefficient
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Date: Sat, 14 Jun 2008 16:21:50 +0200
From: Gabriele Pasteris <paster...@GMAIL.COM>
Subject: Re: Decay coefficient
St=E9phanie,
for Copper, Zinc and Lead I think that it's normal that you don't find daca=
y
coefficients, because they are persistant pollutant (no biodegradation).
Generally your decay coefficient estimation will influence your model
results when you analyse biodegradable pollutants. It will not be the case
for heavy metals, but it will be the case for example for organic carbon.
Gabriele.
2008/6/13 Stephanie Piers de Raveschoot <stephan...@epfl.ch>:
> > Hello dear SWMM-users,
> >
> > I was wondering : when is the decay coefficient for the pollutants used=
,
> > and how sensitive is the model to this decay coefficient ? (=3Dwhat is =
/
> are
> > the equation(s) ?)
> > Having no real mesured values for the case of my tropical city (in
> Brazil),
> > I am looking through literature to try to find values for reasonably
> > equivalent situations. I therefore wanted to know what weight these
> > estimations had on my system.
> >
> > Thank you in advance!
> >
> > Stephanie.
> >
>
> And if anyone has average values for the decay coefficients of lead (Pb),
> copper (Cu) and Zinc (Zn), please feel free to send them over ! :)
>
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End of SWMM-USERS Digest - 13 Jun 2008 to 14 Jun 2008 (#2008-107)
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