Ozone and peroxone induced particle destabilization, microflocculation and coagulant savings
AuthorPaode, Rajendra, 1961-
AdvisorAmy, Gary L.
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractThis research addressed the role of ozone and peroxone (ozone plus hydrogen peroxide) in particle destabilization, microflocculation, and as a coagulation aid at a pilot scale water treatment facility for Colorado River Water and State Project Water. Different treatment scenarios included: (i) alum, (ii) ozone/peroxone with alum, and (iii) ozone/peroxone with ferrous sulfate. While particle destabilization was observed at all dosages of ozone and peroxone, microflocculation was observed only at lower ozone dosages and the peroxone treatments. Ozone/peroxone plus alum treatments gave improved flocculation and overall filtered water quality. Pre-oxidation with 2.5 mg/L of ozone reduces alum requirements by 50 percent. Overall, in terms of particle destabilization and microflocculation and as a coagulation aid, peroxone performed better than ozone. FeSO4 appeared to be a more effective flocculant that alum.