The process of turning collected rainfall from its natural source into safe drinking water involves many steps including multiple water treatment processes. After collection, water needs to be screened and strained. Then there’s chemical addition, coagulation and flocculation, sedimentation and clarification, filtration, disinfection, storage and finally, distribution.
Nyex™ is a tertiary water treatment process which generally happens after filtration. Once the particulate matter has been removed, the water can pass through Nyex.
The Nyex™ process is responsible for the removal of persistent organic compounds, which can cause taste and odour problems for the end consumer. A common example is Geosmin, a compound with an earthy aroma which the human nose can detect at concentrations as low as 5 parts per trillion. In order to prevent complaints and fines, it is of paramount importance for utilities to consistently manage the removal of such compounds, in line with changing concentration levels due to seasonality.