BIOCLENS™ (Encapsulated Bacteria Lenses)

Our BIOCLENS™ technology uses bacteria encapsulated in lenses as a biocatalyst to enhance and accelerate natural biological processes which break down organic matter. The lenses contain living bacteria which is immobilised in a stable, porous PVA gel matrix. As these are stirred in a reactor, water and dissolved impurities diffuse through the lenses and come in contact with the bacteria, causing targeted reactions to occur.

BIOCLENS™ Interaction

Targeted Reactions

Ammonia Removal

Ammonium (NH4+) in the wastewater permeates into the lens​ to allow the ammonia oxidizing bacteria (AOB), embedded inside lens, convert the ammonium (NH4+) to nitrite (NO2)​.

NH4+ + 1.5 O2 → NO2+ 2H+ + H2O​

Then the nitrite oxidizing bacteria (NOB), also embedded in the lens, then convert nitrite (NO2) to nitrate (NO3).

NO2+ 0.5 O2 → NO3


Nitrate Removal

Nitrate (NO3) in the water permeates into the lens

Nitrate reducing bacteria embedded inside the lens convert the nitrate (NO3) to nitrite (NO2)

Nitrite (NO2) is then converted to nitrogen gas (N2)

Both reactions require a carbon source as an electron donor

2NO3+ 10e +12H+ → N2 + 6H2O



✓ Less/no secondary waste/sludge✓ No organism loss
✓ Ability to reach very low TN levels✓ Intensified Process with a small footprint
✓ Low energy demand✓ Low lifecycle costs
✓ Bacteria are protected against harsh water conditions✓ Allows easy bacteria reuse
✓ Clear separation between bacteria and the water being treated✓ Lens shape eliminates diffusion limitations associated with most bacteria immobilisation techniques


Typical IndustriesBIOCLENS™ Can Remove
Municipal ReuseNutrients
Mining WaterBiochemical Oxygen Demand (BOD)
Surface Water Treatment
Groundwater Treatment
Coal, Fine & Petro Chemicals

Find Out More

Contact us to see what else our BIOCLENS™ technology is capable of and how it can help your next water treatment project.