DOMESTIC & ON-SITE

Septic tanks and leach fields generally treat small scale discharges and are popular because they are typically simple, low cost, and low maintenance. They are efficient for removing BOD, and for converting ammonia to nitrate. Nitrate removal, however, is almost negligible and septic systems can be significant contributors to surface water and groundwater nitrate pollution. Approximately 25% of households in the USA treat their wastewater using septic tanks.

Adding a zeolite-anammox system to a new or existing septic system will remove Total Nitrogen (ammonia and nitrate), and can also reduce clogging in the leach field.

 

Non-aerated Method

Depending on the topography of the site this variant may require a water pump, but no aeration is necessary. It will remove ammonia and nitrate, and slightly reduce leach field clogging.

Non-aerated zeolite gravel bed

Aerated Method

This variant requires a re-circulating water pump or an aeration pump and is designed for larger flows, or smaller spaces, or better quality effluent and BOD removal. It will remove ammonia and nitrate, and significantly reduce leach field clogging.

Buried tank containing aerated system

 
 

Residential Home

Applications include: septic & leach fields; ammonia and/or nitrate removal; reduction of water pollution

  • The system operates at ambient temperatures

  • Influent ammonia is typically 60 – 120 mg/L

  • Effluent ammonia typically 3 mg/L, but can be adjusted as required

  • Effluent nitrate typically 3 - 10 mg/L, depending on the site

Service Industrial

Applications include: hotels; casinos; shopping malls; ammonia and/or nitrate removal; reduction of water pollution.

  • The system operates at ambient temperatures

  • Influent ammonia is typically 50 – 300 mg/L

  • Effluent ammonia typically 3 mg/L, but can be adjusted as required

  • Effluent nitrate typically 3 - 10 mg/L, depending on the site