We just prepared a manually calibrated county-wide model in WaterGems Connect and are now considering developing it to analyze disinfection byproducts. The model currently uses pump definitions with varying degrees of reliability--one with little more than manufacturer cut sheet data, others with submittal data, and only one station with data that was derived from actual field testing on the system. I have the sense that the biggest source of error in the model are these less-reliable pump definitions.
I am also wondering how inaccurate pump definitions would affect an analysis of disinfection byproducts. The model is currently producing good hydraulic results, but I'm concerned that DB results could be especially impacted. Is this the case? Have you come a cross situations where it is necessary to perform pump tests on the system in order to produce accurate prediction of DB concentrations?
Also, having taken the fundamentals training course, I am considering signing up for the advanced course, but DB analysis does not seem to be a primary topic of discussion. Is this the case, and are there other resources that I could look into?
Thank you
You could try a simple bottle test in the lab got a handle on bulk reaction rate but you can't be sure about wall reactions. The true test is when yo calibrate the model with samples from the field.
The other complicating factor is that there is not a single DBP, but THM's, HAA's,...
Answer Verified By: Sushma Choure