Environmental Engineering: Fundamentals and Design - Chapter 11

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CHAPTER TABLE OF CONTENTS
TOC > Ch. 11 > 11.2 Wastewater sources

# Chapter 11 Wastewater Treatment

James R. Mihelcic, David W. Hand and Martin T. Auer

## Wastewater sources

Municipal wastewater treatment plants receive inputs from homes, from commercial properties (e.g. laundries) and from industries. In addition, water can leak into sewers from the groundwater (infiltration) and can be discharged (usually illegally) from cellar and roof drains.

Each person in a community generates ~75 gallons of wastewater per day. For the city of Detroit, this amounts to almost 700 million gallons per day. That's enough to fill the central tower of the Renaissance Center in 4 days!

#### Credits

Portage Lake Wastewater Treatment Plant photo: Courtesy of Portage Lake Water and Sewer Authority (Houghton, MI).
Industry photo: Warren Gretz, DOE/NREL.
Home photo: Gen-Con, Inc., DOE/NREL.
Business photo: Warren Gretz, DOE/NREL.
School photo: Eddie Bell, DOE/NREL.
Detroit Renaissance Center photo: John Boissy. Permission pending.

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