"Wastewater Treatment Process"

a presentation by
Mark E. Grobbel, Licensed Master Plumber,
to the Science Club of Our Lady of Mt. Carmel Parish
Elementary School, Wyandotte, MI - April 2003

Mark built this working model and then used an artificial mixture of
grain, oil, topsoil and water to demonstrate how the dirty water is
gradually cleaned as it proceeds through the treatment process.

The Science Club members were very attentive and
they asked a lot of very good questions!

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