K-Patents has released a new application note on Ammonia Removal in Water Treatment. Ammonia can be present in underground water as an impurity as a result of backward sewerage and drainage system, inadequate wastewater and solid waste disposal and treatment, or based on the nature of a certain area hydrogeology. It is undesirable in water because ultimately it gets converted into nitrites and nitrates which cause lack of vitamin and if combined with other components can cause cancer. Moreover, elevated ammonia concentration can create favourable conditions for intensive growth of aquatic organisms, including algae, which leads to deterioration of commodity water quality, especially its clarity, smell, taste and bacterium contamination.
Ammonia must be stripped away from the process. Sulfuric acid used as a coagulant added to the adsorption tower converts ammonia into ammonium sulfate. K-Patents refractometer PR-23-M is measuring the ammonium sulfate concentration in-line. If the value is correct, ammonium sulfate can be stored for further use, if not, the product is further recycled.
Ref. 4.07.02 Ammonia Removal in Water Treatment (pdf)