Environmental Engineering: Fundamentals and Design - Chapter 11

BOOK TABLE OF CONTENTS
CHAPTER TABLE OF CONTENTS
TOC > Ch. 11 > 11.4 Preliminary treatment

# Chapter 11 Wastewater Treatment

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

## Preliminary treatment

Preliminary treatment seeks to remove grit, rags and solids that float which may harm the operation of the rest of the plant. Bar racks or mechanical screens remove paper, rags and other large solids. Sand and grit are removed by gravity settling in a grit chamber.
Bar Rack | Mechanical Screen | Grit Chamber

#### Credits

Bar Rack photo:
Mechanical Screen photo: Andy Whaley (Michigan Tech).
Grit Chamber:

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