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Maintenance: OpenLearn Create will be unavailable from 8:00-11:00am on Wednesday 25 June 2025.
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Tuesday, 24 June 2025, 7:51 AM
Site: OpenLearn Create
Course: Urban Sanitation and Solid Waste Management (UrbanSanWaste_1.0)
Glossary: Glossary
P
primary treatmentfirst stage of the sewage treatment process where most solids are removed by sedimentation (6) |