All Forums

Pesticides processes in SWMM

Posted by Angela Gorgoglione on December 3, 2014 at 1:02pm in Water Quality

Hi evrybody,

I'm working on Pyrethroids in Urban Stream Sediments and I'm using SWMM.

I would like to know if there are equations in SWMM to simulate Photodegradation and hydrolisis processes.

Thank you in advance.

Angela

You need to be a member of SWMM 5 or SWMM or EPASWMM and SWMM5 in ICM_SWMM to add comments!

Join SWMM 5 or SWMM or EPASWMM and SWMM5 in ICM_SWMM

Email me when people reply –
Follow

Replies

  • Robert Dickinson December 4, 2014 at 5:15pm

    It does have 1st order decay and many treatment equations.  You would have to simulate Photodegradation within the constraints of the software. 

    BTW,  I changed your title.

    Subject:    Water Quality Treatment Removal Variables in SWMM5

    The treatment variables for Water Quality in a SWMM 5 storage unit (Figure 1) can be either: 

    1.       A Process Variable

    a.       HRT or Hydraulic Residence Time
    b.      DT or Time Step
    c.       FLOW or The Current Inflow
    d.      DEPTH or the Mean Flow over the Time Step
    e.      AREA or the Mean Area over the Time Step

    2.       Pollutant Concentration
    3.       Pollutant Removal based on the Removal of Other Pollutants 

    With a Wide Range of Treatment Functions (Figure 2).
    Figure 1.  SWMM 5 Treatment Variable Names in the Treatment Equation
    Figure 2.   Treatment Functions in SWMM 5
  • Angela Gorgoglione December 3, 2014 at 1:04pm

    I made a mistake: Photodegradation and not phytodegradation!

    Sorry.

    • Angela Gorgoglione > Angela Gorgoglione December 16, 2014 at 7:11pm

      Thank you for the useful information.

      I have another question for you about wash-off equation: is it possible to introduce in SWMM an equation or I can only choose from the equation that there are inside?

      Thank you in advance.

      Angela

      • Robert Dickinson > Angela Gorgoglione December 16, 2014 at 7:12pm

        You would have to recompile to insert a new equation. What does your equation look like?

        • Angela Gorgoglione > Robert Dickinson December 16, 2014 at 7:32pm

          Imagine any type of equation. Polynomial, or logarithmic, anything. Does SWMM allow the user to include any equation? Does the question I need to answer.

This reply was deleted.