Primary Treatment

Incoming wastewater enters the treatment plant at the Inlet Works.

Here, the sewage passes through fine screens to remove non-biodegradable material such as grit, sand, plastics, cotton tips and sanitary products.

The influents volume is then measured by an inline flume and ultra sonic sensor for daily summary recording data. Next the influent drops into a circular aerated Grit chamber for removal of grit, sand, rocks etc by way of a forced air vortex causing the material to spiral to the centre of the tank for air assisted removal.

Screenings and grit are deposited into a concrete trench for offsite landfill. The wastewater then makes it way via channels and pipes to the next stage.