Documents ACTIVATED SLUDGE. About 100 years ago, engineers noticed that re-suspension and re-aeration of the.....

Slide 1 ACTIVATED SLUDGE Slide 2 About 100 years ago, engineers noticed that re-suspension and re-aeration of the settled sludge from secondary clarifiers in a fresh batch…

Documents By: Angel Bellace, Mike Merlino & Christian Snowden.

Slide 1 By: Angel Bellace, Mike Merlino & Christian Snowden Slide 2 What is nitrogen ? Harmless gas that forms about 78% of the earth's atmosphere. Slide 3 Uses…

Documents Ethylene Oxide Training on the hazards of ethylene oxide (EtO) in the workplace Developed by the...

Slide 1 Ethylene Oxide Training on the hazards of ethylene oxide (EtO) in the workplace Developed by the Division of Occupational Safety & Health (DOSH) for employee…