Sewage
Sewage is the wastewater and waste matter from households, industries, and public facilities that is collected and transported through sewers for treatment and disposal. It's a vital but often overlooked aspect of modern infrastructure, where effective management prevents disease outbreaks and protects ecosystems, though poor handling can lead to environmental disasters like river pollution.
Did you know?
The ancient city of Mohenjo-daro in the Indus Valley, dating back to 2500 BC, featured one of the world's earliest sewage systems with covered drains and household toilets, showcasing advanced urban planning that predates Roman innovations by over a millennium. This discovery highlights how early civilizations prioritized sanitation to support population growth and prevent epidemics.
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