Summary

In this Study Session, you have learned that:

• There are several ways of minimising the use of drinking water. In doing so, we save not only water but also energy and chemical usage.
• Rainwater can be collected and used in a variety of ways, after the first flush is discarded.
• Rainwater can be used for drinking if it is filtered and disinfected.
• Treated sewage can be an important resource for use in irrigation.
• Waste stabilisation ponds offer an economical way of treating sewage for reuse.
• Waste stabilisation ponds can be used to farm fish and ducks, for food.
• Safety measures are needed when working with treated effluent.