Ramiro José Espinheira Martins
Conventional primary treatment is effective in removing:
- Particulate matter larger than about 50 μm from wastewater.
- In general, about 50% of the suspended solids and 25 to 50% of the BOD5.
- Nutrients, hydrophobic constituents, metals, and microorganisms associated with particulates in wastewater.
- About 10 to 20% of the organic nitrogen and about 10% of the phosphorous.