Now showing items 1-10 of 1127
A New and Simple Visual Technique Based on Indigo Dye for Determination of Ozone in Ambient Air
Episodes of pollution resulting from high concentrations of environmental ozone frequently occur in different parts of the world. The ozone can affect human health, natural vegetation, and agricultural productivity. The ...
Comparison of the efficiency of ozonation and catalytic ozonation (Mn II and Cu II) in phenol degradation.
(Soc Brasileira QuimicaSao PauloBrasil, 2006)
Ozone application in water sources: effects of operational parameters and water quality variables on ozone residual profiles and decay rates
(Brazilian Society of Chemical Engineering, 2010)
Systematic ozonation tests were conducted by means of a mobile pilot plant. Water source 1 was a low turbidity stream with very low solids content and very low turbidity, apparent color and alkalinity. Water source 2 was ...
Response Surface Methodology Applied to Ozone Generation
(Taylor & Francis IncPhiladelphiaEUA, 2010)
Ozone therapy in medicine and dentistry
Aim: The purpose of this review is to present the potential for the incorporation of ozone therapy into the practice of dentistry. Background: Ozone gas has a high oxidation potential and is 1.5 times greater than chloride ...
Stratospheric ozone intrusions during the passage of cold fronts over central Chile
This study analyzes tropospheric column ozone variability in the southern hemisphere as a function of ozone transport from the stratosphere to the troposphere and photochemical formation. Geographically, the study area was ...
Reaction of dissolved ozone in hydrogen peroxide produced during ozonization of an alkaline medium in a bubble column
(Univ Estadual Maringa, Pro-reitoria Pesquisa Pos-graduacaoMaringaBrasil, 2014)
Evolution of ozone depletion on Antarctic and Sub-Antarctic regions (1979-2012)
(International Society for Optics and Photonics, 2013-08)
At the middle eighties, strong stratospheric ozone depletion during spring was discovered over Antarctica. Since then, the scientific community has put large efforts in performing studies directed to evaluate the magnitude ...