Please, I need help!
I want to see the change in river water quality by adding the effluent from the Waste Water Treatment Plant (WWTP). For example, my final concentration of nitrogen in an outflow from the WWTP is 6,41 mg/l. In my river, usually, the concentration of nitrogen is 3,8 mg/l. How can I model the river water quality after adding the return flow from the WWTP?

I look forward to hearing from you soon.
Best regards,
Magdalena

Dear Magdalena,
Have you had a chance to look at the Water Quality chapter of the WEAP tutorial? (You'll find it at www.weap21.org/tutorial). You can add Water Quality parameters under the General menu and then you'll be able to add your outflow concentration to the data for your WWTP.

Best,
Anne