In previous posts we have noted work on the use of ozone in ballast water treatment. IMO rules will require ships to treat ballast water to prevent the transport of invasive species across the globe. As an example of invasive species brought to the US via ballast water are zebra mussels. The new rules will […]
Month: September 2012
On Site Oxygen Generation for Ozone Production Using Pressure Swing Absorption
Ozone is most efficiently made from oxygen with a small amount of nitrogen. Oxygen exists in the atmosphere at a concentration of about 21% in air we breathe. Using technologies such as pressure swing absorption (PSA). PSA is a purely physical process; there are no chemical, electrical, or other reactions in our process. Under pressure […]
Ozone Water Treatment – Removal of Organic Compounds
Ozone is often used to reduce the amount of organic compounds in water treatment applications via a process called oxidation. Commonly used measures of organic levels are COD (chemical oxygen demand) and BOD (biological oxygen demand). The first measure uses high temperature and aggressive chemical oxidants to completely oxygenate organic compounds in a test sample […]
Ozone and Advanced Oxidation Find Opportunities in Fracking Water Treatment
Fracking has created a large application for various water treatment technologies such as ozone and advanced oxidation processes. Both processes have been used to either breakdown organic contaminants in the water, remove Fe and other minerals or for disinfection of the water prior to injection. An advantage of ozone based processes is that the ozone […]
Salt Lake City Uses Ozone to Improve Water Quality
Salt lake City uses ozone at two of its facilities: Little Cottonwood (LCW) and Point of the Mountain (POM). LCW has Utah’s first and largest ozone drinking water treatment system, two ozone generators each sized at 3,750 lb/day of ozone. The facility can treat 143 MGD of water. The plant can dose ozone at 3.5 […]