Nitrogen and phosphorus will be recovered from the secondary effluent using ion exchange media. Phosphorus will be removed by adopting a hybrid ion exchange media (HAIX) for phosphorus removal and ammonia will be removed using Mesolite which is a type of zeolite. Both ammonia and phosphate will be recovered using chemicals in order to regenerate the sorption material and recover the nutrients as high added value chemicals of ammonia sulphate and calcium phosphate.
Nutrients will also be recovered as struvite and as sludge which is rich in phosphorus via the treatment of municipal wastewater and sludge reject water. In the first case struvite precipitates with the addition of magnesium and proper pH adjustment. In the second case, enhanced biological phosphorus removal results in the accumulation of high concentrations of phosphorus in sludge. The produced chemicals and the sludge (treated to become P-rich compost) have a high agronomic value and will be applied to land to demonstrate increased crop production.