Water from kitchens and dishwashers are also considered blackwater due to the contamination by pathogens and grease (Your Home, Australian Government). It is also referred to as sewage or brown water and can carry disease and bacteria, both of which could be harmful.
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Water is a crucial asset – without it we simply would not survive. Every day we use it, and most of it is collected as wastewater.
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Above: Wastewater treatment facility in Glenelg, South Australia
Wastewater can be classified into two categories: blackwater and greywater. Although they are both wastewaters, they have different levels of contamination, which is why they must be treated differently. Both varieties can be recycled through treatment systems and are often reused for irrigation and cleaning.
Discover the differences between blackwater and greywater…
Blackwater: is the wastewater from bathrooms and toilets that contains faecal matter and urine. Water from kitchens and dishwashers are also considered blackwater due to the contamination by pathogens and grease (Your Home, Australian Government). It is also referred to as sewage or brown water and can carry disease and bacteria, both of which could be harmful.
How to treat blackwater: biological or chemical treatment and disinfection are required for treating blackwater. There are several accredited treatment systems available for outdoor use.