The Peragreen 22WW is a more concentrated version of the Peragreen WW. The Peragreen 22WW is the most concentrated peracetic acid microbiocide on the market for use in wastewater treatment systems. Peragreen 22WW is a 22% peracetic acid formulation that is effective at reducing bacterial organisms commonly found in wastewater treatment systems. The increased concentration allows for decreased chemical volumes while still maintaining efficient bactericidal properties.