Tertiary Treatment.

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Presentation transcript:

Tertiary Treatment

Most common Tertiary Treatment Processes: Tertiary treatment is defined as any treatment beyond secondary treatment. Most common Tertiary Treatment Processes: Further solids removal Filtration Nutrient Removal Nitrogen Phosphorous Further Organic Removal

Filtration Rapid Sand Filters Up-flow Filters

Nutrient Removal Nitrogen Nitrification Autotrophic Aerobes Nitrosomonas 2 NH4+ + 3 O2  2 NO2- + 2 H2O + 4 H+ Nitrobacter 2 NO2- + O2  2 NO3- Denitrification Anoxic Heterotrophs NO3-  N2(gas)

Phosphorous Removal Biological Chemical Precipitation Luxury Uptake after an anaerobic reactor Chemical Precipitation Al+3 + PO43-  AlPO4 (ppt

Natural Systems Ponds or Lagoons Aerobic Facultative Wetlands

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