In this posting we are going to talk about “good†and “bad†ozone in the environment. The discussion of bad ozone comes from the US EPA website. The discussion of the good ozone comes from the NASA website. Ground-level or “bad” ozone is not emitted directly into the air, but is created by chemical reactions […]
Month: February 2008
Entry for February 15, 2008
This posting is our third in a series discussing the use of ultra sonic systems for the control of algae. In this note we will ultra sound in the context of a total water management system. As noted in the previous note we discussed how ultra sound can damage the hard outer cell wall of […]
Entry for February 10, 2008
In this posting we will talk a little more about ultrasonic algae control. The discovery that ultrasonic waves in water kill algae was made over sixty years ago in submarine sonar experiments. It took some before this observation was applied to the control of algae in ponds, pools and other water bodies. Effective ultrasonic algae […]
Entry for February 5, 2008
In our postings up to this point we have focused on on oxidation technologies. Spartan also offer ultrasonic algae control products. Our partner in this area is Algae Control US. The following information on teh use of ultrasonics for biofilm control was provided by the Vice President for Engineering of Algae Control US, George Hutchinson. […]
Entry for February 4, 2008
In this posting we will discuss measurement of dissolved ozone. Knowing dissolved ozone concentration is important in a variety of situation, most especially in water disinfection. The ozone residual is critical for calculating the CT value as we have discussed in previous postings. CT in turn is the key parameter for determining pathogen inactivation. In […]