Difference Between Blackwater and Greywater
Blackwater vs Greywater
Blackwater and greywater are both dirty water. The difference between blackwater and greywater, however, lies in the thing that makes them dirty. Both are wastewater and they are actually treated in water treatment plants, although their treatment is different from each other.
Blackwater
Blackwater is basically water contaminated by feces and other bodily wastes. This is water that is flushed down your toilets and is also known as brown water. They actually contain some bacteria that can be harmful to people, that is why they are kept in separate tanks to be specially treated. However, blackwater can no longer be safe for human consumption and their reuse is commonly for fertilizer purposes.
Greywater
Greywater is water that comes from laundry, bathing and dishwashing, among others. This type of water is usually treated at water treatment plants and can be reused by us, usually for toilets, washing cars and irrigation. Compared to blackwater, it doesn’t have bacteria that are as harmful and dangerous. That is why its treatment is not as intense as blackwater.
Difference between Blackwater and Greywater
Both greywater and blackwater are types of wastewater. It’s just that greywater is the result of water being used for household purposes, like cleaning and washing clothes, while blackwater contains feces and urine and other bodily wastes. Due to this, greywater can be easily recycled as they don’t contain that much bacteria compared to blackwater. Blackwater carries a deadlier bunch than greywater. Greywater and blackwater is also treated differently, with blackwater needing a more intensive treatment to kill the disease carrying bacteria present. Recycled greywater also tends to turn into blackwater after use, as it can be used to flush toilets.
The difference between greywater and blackwater is mainly what makes it dirty. However, how they are being treated to be reused is also a good point to consider.
In brief: •Blackwater is water that contains feces and urine as they are flushed from the toilet. It is also known as sewage water. It contains harmful bacteria and its treatment is different from other water treatments. •Greywater is water that came from laundry, dishwashing and other household activities. It doesn’t contain as harmful bacteria as blackwater and can be easily treated. |
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