Common odors lingering in and around treatment plants smell like rotten eggs, ammonia, or garlic, among other things. ... Due to its low solubility in wastewater, it is released into the atmosphere, producing an offensive odor. Amines and mercaptans are two other odor-causing offenders at treatment plants.

How do you get rid of the smell of STP?

The integration of Air Ozonation System and injection of Ozone into Air Handling System is the latest and most popular technology to reduce H2S and NH3 from enclosed STP Exhaust. Role of Ozone: Ozone is a powerful oxidant which rapidly oxidizes odorous gases such as Hydrogen sulphide and ammonia.

Does STP water smell?

If an STP is working properly, its treated water would look just like tap water – clear, without any odour. In addition, it must meet the specifications set by the State Pollution Control Board (KSPCB).