Dear colleagues,

I am wondering whether current SWMM or future SWMM can be used to model biological kinetics in the sewer collection system. I am interested in knowing how to model the time history of BOD and TSS in sewer system before reaching a treatment plant?

Secondary, I know for sewers, SWMM is the "must-use" tool. What public-domain modeling tool do most North American engineers use for modeling wastewater treatment plants?? Has USA EPA approved or developed modeling tools for the treatment processes??

Thank you very much all in advance. Any suggestions or commented will be deeply appreciated.

Yao Lan
Yao.HungLan@GVRD.BC.CA