Page 73 - March 2020 - WT Site

The Process • Biological processes are used to help degrade the solid
materials.
• Untreated sewage from a property flows into the septic tank
and the solids are separated from the liquid. • The liquid then is pumped into a sand filter.
• Solid material is separated depending on their density. • The water is then filtered in fines and filter or micron bag
Heavier particles settle at the bottom of the tank whereas filter.
lighter particles, such as soap scum, will form a layer at the • Then reozonised on line as a final polishing.
top of the tank.

Figure 1: Overview of entire project

Figure 2: Close view of Septic tack and Inspection Chamber

Figure 3: Close view of ozonator, pumps, and sand filter
1. Inspection Chamber 2. Septic tank and sand filter 3. Ozonator
4. Carbon filter 5. Treated water tank 6. Final filtration and supply

Water Today - The Magazine l March 2020 75