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1. Screening - Large and small objects like towels, sand, and gravel are removed.
2. Primary Clarification - Grease and oil float to the top of large settling tanks. Solids sink to the bottom and are collected to make energy.
3. Biological Treatment - Microscopic organisms, "bugs", break down organic material. The bugs we use for cleaning wastewater are famous! When they're done doing their jobs in the water reclamation facilities, we dry them out and turn them into Milorganite®, a slow-release fertilizer sold nationwide, trusted and used by lawn and gardening experts since 1926.
4. Disinfection - Disease-causing organisms are killed by chemicals that are then neutralized. Clean water is returned to Lake Michigan.
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