Residential Waste Water Re-Use
What is wastewater?
Wastewater is any type of water that has been utilized in some capacity and is no longer considered fit for human consumption and has been discharged to sewer.
Why re-use wastewater?
Treated wastewater can be used to flush toilets and to wash clothes. Untreated wastewater can be used to water gardens. By using wastewater as a resource rather than a waste product you can:
Reduce water bills.
Use less water resources.
Irrigate your gardens during drought water restrictions.
Cut down the amount of pollution going into our waterways.
Help save money on new infrastructure for water provision and wastewater treatment.
Wastewater re-use decreases the demand on infrastructures for sewage transport, treatment and disposal, allowing the infrastructure to work better and last longer.
TYPES OF WASTEWATER
There are two types of wastewater created in a home, each of which can be treated and used in various ways.
1. Greywater is wastewater from non-toilet plumbing fixtures such as showers, basins and taps. It is advisable to exclude water from kitchens and dishwashers from greywater being recycled, because of the potential for contamination by pathogens.
2. Blackwater is water that has been mixed with waste from the toilet. Blackwater requires biological or chemical treatment and disinfection before re-use. For single dwellings, treated black water is suitable only for outdoor re-use.