AWWA WQTC60774

Advanced oxidation processes (AOPs) are used to oxidize organic micropollutants indrinking water. There are many different types of AOPs and difficulties arise whencomparing them to each other due to operational differences. This paper presents a method tocompare ozone and UV/H₂O₂ AOP processes in terms of OH radical production. Benchscale data is used to find steady state parameters, which in turn are scaled up to reactorscale operational energy requirements as a function of the water being treated.Depending on the water being treated and the operational conditions, including amount ofremoval needed, either the ozone or ultraviolet (UV) processes may be more efficient in terms ofenergy required to form OH radical in 1000L of treated water. Under typicalcircumstances, ozone is a slightly more energy effective technology for production of OHradical in the three waters tested. However, in water with properties similar togroundwater, the LP UV process was more efficient. Also, in cases where the ozonecontact time must be extended, the UV processes may require less energy than the ozoneprocesses for production of an equivalent OH radical exposure. Thus choice of an AOPmust be made with specific regard to the site conditions and contaminants being targeted. Includes 12 references, tables, figures.

Product Details

Edition:

Vol. - No.

Published:

11/15/2004

Number of Pages:

12

File Size:

1 file , 530 KB