Visit the Becton Sewage Treatment Works—one of Europe’s biggest plants—which processes sewage from 3.4 million Londoners into water clean enough to return to the Thames.
➡ Subscribe:

About I Didn’t Know That:
Two industrial scientists, Richard Ambrose and Jonny Phillips, explain the science behind everyday life… from microwave ovens to beating a lie detector.

Get More National Geographic:
Official Site:
Facebook:
Twitter:
Instagram:

About National Geographic:
National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible.

Where Does Your Sewage Go? | I Didn’t Know That

National Geographic