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Preliminary wastewater treatment involves removing larger visible particles that may harm equipment or cause operational issues.
Some unit operations in preliminary wastewater treatment include: Screening: Removes larger floating objects Grit removal: Removes inert sand and inorganic particles Settling: Removes settleable suspended organic solids
Other unit operations in preliminary wastewater treatment include: Grinding, Flotation, Equalization, Flocculation, Comminution, Oil and grease removal. Topics include: Types of Unit Operations, Racks and Screen, Grit Chambers, Tanks and Vacuum Floatation</a></li>
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