The Paihia Bioshell® installation is the largest Bioshell® system outside of the USA, and the only installation that removes ammonia outside of Utah and Montana. 

Application of technology developed in similar conditions and challenges in the USA to a New Zealand project has provided
a range of benefits. 

Bioshells® have demonstrated a reduction of ammonia from the WWTP from the 2015-2019 average of 40 mg/l
to <2 mg/l.