The ash of incinerated sewage sludge can be made into synthetic stone, says
Tsukishima Kikai Company of Tokyo. The ash is blended with up to 20 per cent
silica, alumina and lime, and then mixed and degassed at 1200 to 1300 掳C to
produce glass-like stones. Subsequent reheating converts the material to
Ecorock, a building material that can withstand up to 4.5 times as much bending
force as granite or marble. The company is building a $25 million plant
at Suwa to make Ecorock commercially.
More from 快猫短视频
Explore the latest news, articles and features
Popular articles
Trending 快猫短视频 articles
1
Pancreatic cancer halted by virus injection in three patients
2
Glaciers in the 'roof of the world' have suddenly started melting
3
Does gravity create reality? A shocking path to a theory of everything
4
How a radical new view of life could reveal its origin 鈥 and aliens
5
Embryos made without sperm or eggs reveal why many pregnancies fail
6
Aim high but don't shoot for the moon, mathematicians advise
7
Mathematical AI helps researchers crack 50-year-old problem
8
Q-Day could destroy bitcoin 鈥 and our retirement savings
9
Start-ups are racing to revolutionise mathematics with AI
10
Why your brain needs plenty of 鈥淎ha!鈥 moments
