Archaea Reduce Sludge Production and Deposits

Decrease sludge production
- Solubilization of colloidal and particulate material
- Degradation of soluble substrate
- Production of 0.6 pounds of cells (solids) from one pound of solids (colloids or particulates)
Decrease sludge deposits (lagoons)
- Solubilization of colloidal and particulate material
- Degradation of soluble substrate

Archaea Satisfy Ammonia and Total Nitrogen Discharge Requirements

Satisfy NH₃ and TN discharge limits
- Use of Crenarchaeota (ANAMMOX Archaea)
- Nitrify ammonia under anaerobic condition and produce nitrite (NO₂ -) only under reduced dissolved oxygen concentration
- Denitrify nitrite to molecular nitrogen (N₂) without carbon addition

Archaea Provide resistance to toxic wastes

Provide resistance to toxic wastes
- Degrade organic toxicants as substrate
- Safely bioaccumulate inorganic toxicants for example, heavy metals

Archaea Improve Cold Weather Treatment Efficiency

Improve cold weather treatment efficiency
- Increase number of cBOD-removing microbes
- Increase number of nitrifying microbes
- No significant increase in MLVSS and MCRT
At critical cold temperatures, the following occurs:
- < 16C, 50% reduction in cBOD treatment
- < 15C, 50% reduction in nBOD treatment
- < 12C, decrease rate of floc formation

Archaea Control Malodors

Control malodors
- Compete with SRB for substrates
- Degrade Degrade VFA VNC VSC
- Release wastes that act as antibiotics to SRB
- Prevent the conversion of HS to H₂S

Archaea Reduce Filamentous Organism Growth

Reduce filamentous organism growth
- Target operational stimulatory condition
  - Reduction Reduction in MCRT
  - Competition for substrates (carbon and energy)
  - Degradation of hydrophobic compounds released by foam-producing filamentous organisms