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Ozone Disinfection / Sterilization


Contrary to popular belief ozone sterilization is not a new technology. In fact, the first large scale ozone municipal water treatment plant was built at the end of the 19th century in Nice, France. Since then ozone has been the focus of several disinfection and sterilization research studies in the fields of air and water treatment. The use of ozone, unlike chlorine, does not produce any toxic by-products such as THMs (tri-halomethanes). Excess, or unreacted ozone, is easily converted to oxygen thanks to its high reactivity and short half-life. These properties, combined with its high oxidizing power, has led to a rapidly growing implementation of ozone in sterilization and disinfection processes.
             

Chemical Free & Environment ally friendly Material Ozone
A material from the past... with futuristic applications


Ozone oxidation capabilities


Ozone generators
Article on Ozone appliaction
 
Ozonation of cooling tower water
Article about ozone applications in Cooling Towers

Ozone tertiary treatment
Article Ozone tertiary treatment

Ozone Applications
Article about Ozone Applications For Agricultural Products,
Perishable Goods, Produce and Food Products.

ADVANCED OXYDATION PROCESS
Chemical free & environmentally friendly material Ozone A material from the past ...with futuristic applications

Alternative Disinfectants and Oxidants Guidance Manual
FOOD APPLICATION OVERVIEW FROM EU POINT OF VIEW As far as the chemistry of ozone is concerned, it is disarmingly simple, because one molecule of ozone is created by simply adding one atom to the two that are present in oxygen, which results in the O3 ubstance ideThis manual provides accurate technical data and engineering information on infectants and oxidants that are not as widely used as chlorine. The U.S. Environmental Protection Agency encourages drinking water treatment utilities and drinking water rimacy agencies to examine all aspects of their current disinfection practices to improve the uality of their finished water without reducing microbial protection.tification of ozone.

Ozone Injection - a Superior Choice for Clean-In-Place (CIP) Applications
Introduction to Ozone CIP Compared to manually initiated cleaning or disinfection of fluid handling systems, automated disinfection processes known as Clean-In-Place (CIP) have clear advantages--especially in terms of repeatability, reliability, reduced downtime, and in documenting cleaning performance. When ozone is used instead of chemicals such as hydrogen peroxide or chlorine, even greater advantages become apparent. Ozone is enerated as needed at point-of-use (POU), eliminating the need for chemical storage and handling. In addition, ozone breaks down into harmless oxygen without assistance, so here are no worrisome chemical residuals to neutralize.

What is ACTIVATED CARBON?
Activated carbon is a carbon which have been subjected to a chemical or physical activation. These two processes presents some advantages and disadvantages.

Application of Ozone in Cooling Water Systems
The first comprehensive study — bench-top laboratory investigations, pilot scale testing, and critical monitoring and evaluation of field applications — addressing the effects of ozone as a stand-alone cooling water treatment program is presented. The study also represents the first critical comparison of ozone-treated systems with non-treated systems. Excellent corrosion control can be attained in ozone-treated cooling water systems. However, the corrosion rates are completely dominated by the water chemistry of the system and have no dependence on the presence of ozone at typical use levels. Good control of fouling can also be attained. However, as was the case with corrosion control, deposition on the heat exchange surfaces is not determined by the presence of ozone, but by several factors that traditionally influence fouling in a system. The strong biocidal properties of ozone resulted in excellent microbiological control in all PCT investigations, and in both case studies. Excellent agreement was observed among all stages of testing.

Ozone treatment for emulsified waste water
FOOD APPLICATION OVERVIEW FROM EU POINT OF VIEW As far as the chemistry of ozone is concerned, it is disarmingly simple, because one molecule of ozone is created by simply adding one atom to the two that are present in oxygen, which results in the O3 substance identification of ozone. At high concentration levels the matter can be dangerous, but the levels used in industry generally for cleaning food are low or about 0.05 to 0.5 ppm.


Ozone sterilisation for Bottling Industry
FOOD APPLICATION OVERVIEW FROM EU POINT OF VIEW As far as the chemistry of ozone is concerned, it is disarmingly simple, because one molecule of ozone is created by simply adding one atom to the two that are present in oxygen, which results in the O3 substance identification of ozone. At high concentration levels the matter can be dangerous, but the levels used in industry generally for cleaning food are low or about 0.05 to 0.5 ppm.

Ozone in Food & Agriculture A chemical-free technology

Impact of Odor and Dust on Pig Performance .
Effectiveness of Ozone for Controlling Listeria monocytogenes in Ready to Eat Emerging technologies for colour removal. Focus on catalyzed ozone.

The Replacement of Chlorination in the Treatment of Municipal Drinking Water
This study has as its objective to determine which water treatment method is best suited to replace chlorination in the treatment of municipal drinking water. Chlorination has recently been shown to produce halomethanes in water which prove to be more hazardous to the health than the entities the chlorine was originally intended to destroy. In this light, the tendency is to move away from chlorination and replace it with a safer process. Among the processes analysed and compared are carbon filtration, ultra filtration, reverse osmosis, ultraviolet radiation, distillation, ozonation and ion exchange. The effectiveness of these in the removal of contaminants normally encountered in pre-treated municipal water are compared to that of chlorination. Capital and operational costs as well as the environmental impact of each solution was also taken into consideration. The conclusion of this research is that ozonation will result in the safest, cleanest drinking water supply.

Disinfection

AQUAGENEX RAPPORT TECHNIQUE

Advanced technologies treatment
The use of conventional water and wastewater treatment processes becomes increasingly challenged with the identification of more and more contaminants, rapid growth of population and industrial activities, and diminishing availability of water resources. Three emerging treatment technologies, including membrane filtration, advanced oxidation processes (AOPs), and UV irradiation, hold great promise to provide alternatives for better protection of public health and the environment and thus are reviewed in this paper. The emphasis was placed on their basic principles, main applications, and new developments. Advantages and disadvantages of these technologies are compared to highlight their current limitations and future research needs. It can be concluded that, along with the growing knowledge and the advances in manufacturing industry, the applications of these technologies will be increased at an unprecedented scale.

ADVANCED OXYDATION PROCESS AOP
Discovered in the 19 Th. century Ozone a natural form of activated oxygen (allotropy) generally produced during lightning storms and continuously occurring in the stratosphere due to action of ultraviolet (UV) is being rediscovered for the 21 Th. century. It can be artificially produced by the action of high voltage discharge in air or oxygen.

FOOD EFFLEUNT TREATMENT CASE STUDY
To remove suspended an dissolved COD from food effluent such as Eggs , proteins, cheese waste water effluent which contains high level of COD mainly biodegradable proteins to meet local regulations . To achieve that objective we propose Ozomax patented AOP technology.

OXIDATION OF AROMATIC COMPOUNDS WITH UV RADIATION/OZONE/HYDROGEN PEROXIDE
A large variety of organic and inorganic compounds may be found in wastewater. Among these compounds, aromatics are caracterized by their high toxicity and very low degradability by conventional treatments. This paper presents the results of an investigation about the oxidation of two substituted benzenes in a semi-batch reactor. Phenol, substituted with an electron-donating group (-OH), and benzoic acid substituted with an electron- withdrawing group (-COOH). The advanced oxidation processes studied were UV, ozone, hydrogen peroxide and its combinations. The pH dependance and the influence of the initial concentration of hydrogen peroxide were studied to find the optimal conditions for a complete and fast oxidation of both compounds. Experimental results indicated that both phenol and benzoic acid are destroyed more rapidly by ozone at higher pH (9-12), while ozonation combined with hydrogen peroxide or/and UV is considerably faster at low pH (3-7).

MANAGING WATER AND AIR QUALITY
The primary water and air quality health challenges to be dealt with are, in order of priority, controlling clarity to minimize injury hazard, controlling water quality to prevent the transmission of infectious disease, and controlling potential hazards from disinfectant by-products. These challenges can be met through optimal matching of the following factors: