How can you solve sewage pollution?

METHOD OF PURIFYING SEWAGEIt involves the following two processes:

• Removal of solids by physical screeings and sedimentation
• Removal of soluble and fine suspended organic pollutants by a biological oxidation process, using active sludge/sediment .
• Then ultra violet rays are applied to produce pre drinking water. i.e. Water that is safe enough to water Golf courses.
• The final process to make water safe as drinking water again, chlorine is then added to produce water that is safe to drink.