Abstract
Oxidative degradation of hazardous materials by ozone treatment like in sterilization of water, dump waste, pulp bleach and chemical processing, is superior to the traditional chlorine chemistry with respect to by-products and environmental protection. For an efficient and cost effective production of ozone for applications in drinking water and wastewater purification, a new concept of tubular composite material components has been developed. A borosilicate glass tube was coated with a layer system consisting of an intermetallic electrode and a dielectric oxide ceramic surface layer. Thermo-mechanical and dielectric properties are investigated with respect to the use of different thermal spray powders as well as the use of a high and a low energetic atmospheric spray gun. The materials and ozone production system of thermal sprayed ozonizer tubes are described and analyzed.
Highlights
E Ozone is an environmentally benign chemical compound having the ability to replace commonly used chlorine compounds in many processes
The aim of the research project is the development of a novel powerful ozonizer tube, which cuts down the production costs and causes ozone to be an economically competitive alternative to traditionally used chlorine compounds [6,7,8,9]
According to the aim of this study, the investigated coating systems were analysed focusing on the application in ozonizers
Summary
E Ozone is an environmentally benign chemical compound having the ability to replace commonly used chlorine compounds in many processes. It is one of the strongest oxidants surpassed only by fluorine in its oxidising power. Ozone is used as a germicide and bactericide for the treatment of potable and waste water as well as for bleaching processes and in further chemical oxidation steps. Ozonation has been used for tackling various industrial wastewaters [2,3,4]. Its industrial applications have been handicapped by low ozone transfer efficiency and relatively high production costs [5]. The aim of the research project is the development of a novel powerful ozonizer tube, which cuts down the production costs and causes ozone to be an economically competitive alternative to traditionally used chlorine compounds [6,7,8,9]
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