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6 Cards in this Set
- Front
- Back
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Processes |
Screening (preliminary) Grit removal (preliminary) Settlement of solids (primary) Biological treatment (secondary) UV or filter membranes (tertiary) |
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Primary treatment |
BOD INTO CO2 NH4N INTO NO3N |
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Primary treatment pre-precipitation |
Metal salt added leading to coagulation and flocculation Fe3+ or Al3+ |
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Primary pst |
Primary sedimentation tank |
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Secondary |
Tf RBC rotating biological contractor Activated sludge |
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Sludge treatment |
Thickener Sludge digestion using lime to ensure sludge is relatively pathogen free Dewatering |
