Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
6 Cards in this Set
- Front
- Back
Processes |
Screening (preliminary) Grit removal (preliminary) Settlement of solids (primary) Biological treatment (secondary) UV or filter membranes (tertiary) |
|
Primary treatment |
BOD INTO CO2 NH4N INTO NO3N |
|
Primary treatment pre-precipitation |
Metal salt added leading to coagulation and flocculation Fe3+ or Al3+ |
|
Primary pst |
Primary sedimentation tank |
|
Secondary |
Tf RBC rotating biological contractor Activated sludge |
|
Sludge treatment |
Thickener Sludge digestion using lime to ensure sludge is relatively pathogen free Dewatering |