Blackwater

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

Blackwater is wastewater containing human waste (feces and urine). As such, it contains large amounts of pathogens that may spread by the fecal–oral route. Blackwater is distinguished from greywater (which comes from sinks, baths, washing machines, and other household appliances apart from toilets).

Excerpt from the Wikipedia article “Blackwater (waste)”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Soil Science from Raleigh, CC BY 2.0, via Wikimedia Commons.