Difference between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)

Chemical Oxygen Demand (COD) and Biological Oxygen demand(BOD) are the two main characteristic properties that indicate the strength of sewage. Both...

Comments

Post a Comment

Popular posts from this blog

Toward 20-Story Earthquake-Safe Buildings Made From Wood

A two-story wooden structure endured four different earthquake simulations on July 14, 2017 on the world’s largest outdoor shake table here in San Diego. And it’s still standing before more tests in the coming weeks. The goal of the tests is to gather enough data to design wood buildings as tall as 20 stories that do not suffer significant damage during large earthquakes. That is, not only can occupants leave the building unharmed, but they can come back and resume living in the building shortly after a temblor.
Read more