ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
C2H2 hydrogenation Last month, Clariant (Munich, Germany; www.clariant.com) launched OleMax…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUS
6. Honeywell-MicroPressureMPRSeriesSensorFocus on Sensors
Hygienic optical sensor measures dissolved oxygen The Memosens COS81D hygienic…
NEW PRODUCTS + Show More SHOW PREVIEWS

Comment Environment, Health, Safety & Security

Wastewater treatment with peracetic acid

By Scott Jenkins |

In what is said to be the largest municipal wastewater application using peracetic acid (PAA) disinfectant to date, the Metro Wastewater Reclamation District in Denver, Colo. recently began disinfecting wastewater effluent with a PAA formulation from Enviro Tech Chemical Services, Inc. (Modesto, Calif.; www.envirotech.com) known as Peragreen WW. PAA is a disinfectant alternative to sodium hypochlorite that allows users to avoid permitting and regulatory issues associated with toxic halogenated byproducts from chlorine-containing disinfectants. While it is more expensive than sodium hypochlorite, PAA is a more potent oxidizer, so it can reduce overall chemical use. Peragreen WW is an equilibrium 15% PAA solution that is stabilized in a proprietary formulation. The application of PAA is accomplished by metering skids engineered by Stantec Engineering (Edmonton, Alta.; www.stantec.com). The skids contain peristaltic pumps with specially designed tubing made from Teflon and silicone. Enviro Tech installed plastic storage tanks for the PAA system that feature a proprietary medium-density polyethylene liner with high chemical resistance. The new bulk delivery and dosing system at the Denver wastewater plant has a capacity of more than…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
ABB Ability™ technology to transform BASF rotating equipment into intelligent machinery and improve uptime and reliability
Detect and correct anomalies early in your batch processes
ABB at ACHEMA 2018
The Future of Project Execution
Digitalization: What does it deliver today… and tomorrow?

View More

Live chat by BoldChat