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Wastewater - Preliminary Treatment

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Michigan Environmental Education Curriculum
Wastewater 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

Bar Rack

Mechanical Screen

Mechanical Screen

Grit Chamber

Grit Chamber

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