I am a professor of Sanitation discipline in my university (Federal University of Amapá - UNIFAP).
I woul like to obtain digital material for my classes about "Principles of Water Treatment".
I bought the printed book titled "Principles of Water Treatment" and would like to have access to digital material related to the texts, such as solved exercises, figures, didactic illustrations, etc.
Thank you for your attention.
Dr. Alan Cunha
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Hope this helps!