For Thorough & Complete Denitrification
The WaterNOx-LS™ is an advanced nitrogen removal add-on for the thorough denitrification of nitrified effluent in residential and commercial applications. The WaterNOx-LS™ uses a mixture of agricultural sulphur and limestone in a submerged up-flow configuration to remove nitrogen via a passive autotrophic process. Sulphur-oxidizing bacteria reduce nitrate while limestone self-buffers the pH.
The system requires no external carbon source, uses no energy, and is designed for a long 15+ year lifespan on the sulphur media before replacement. There is minimal effect on incoming cBOD5 or TSS concentrations, with effluent sulphate well below concentrations considered the upper limit for aesthetic reasons. The WaterNOx-LS™ is low maintenance with only annual service visits required.
The WaterNOx-LS™ can be installed new following a nitrifying technology such as the Waterloo Biofilter or retrofit to upgrade existing installations. Influent can flow via gravity or pump while effluent flows by gravity to disposal or further processing.
WaterNOx-LS™ offers numerous advantages over
other nitrogen removal technologies
no external carbon source
no energy use
long media lifespan
self buffered to neutral pH
easy set-up and servicing