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2 edition of Ozone as a biocide in cooling water systems found in the catalog.

Ozone as a biocide in cooling water systems

Kalminder Kaur

Ozone as a biocide in cooling water systems

by Kalminder Kaur

  • 200 Want to read
  • 9 Currently reading

Published by University of Birmingham in Birmingham .
Written in English


Edition Notes

Thesis (Ph.D.) - University of Birmingham, Schools of Biological Sciences and Chemical Engineering, 1990.

Statementby Kalminder Kaur.
ID Numbers
Open LibraryOL13928013M

Cooling Water Treatment With Ozone Abstract Small scale tests on an open recirculating cooling system with a cooling water flow of 10 m3/h conducted for a period of two years has shown that ozone could be a viable alternative to chlorine and other commonly used biocides. Water Treatment for Cooling Towers (1 of 2) Water treatment helps ensure that heat-transfer surfaces perform to design specifications By Amanda Meitz, Senior Microbiologist, Nalco Diversified Technologies, Inc. As the universal solvent, water is capable of dissolving a variety of materials as well as holdingFile Size: KB.

Small scale tests on an open recirculating cooling system with a cooling water flow of 10 m{sup 3}/h conducted for a period of two years have shown that ozone could be a viable alternative to chlorine and other commonly used biocides. An average ozone dosage of . @article{osti_, title = {Performance of hydrogen peroxide as a cooling water biocide and its compatibility with other cooling water inhibitors}, author = {Coughlin, M F and Steimel, L}, abstractNote = {Hydrogen peroxide has been evaluated in a pilot cooling tower system as an alternative to continuous chlorination and intermittent dosing with non-oxidizing biocides.

Enerzen High Capacity Commercial Ozone Generamg Industrial Strength O3 Air Purifier Deodorizer Sterilizer (11,mg - Gray) out of 5 stars 4, $ $ Atrusted and innovative supplier of environmentally friendly technology. How long does ozone last? As soon as ozone is formed in the generator and dispersed in a room, it will start to revert back to oxygen.


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Ozone as a biocide in cooling water systems by Kalminder Kaur Download PDF EPUB FB2

Experimental work on a laboratory recirculating apparatus, for the simulation of a cooling water system has yielded information on the effectiveness of ozone as a biocide for biofouling control.

Biofilms were developed within glass tubes of the simulated cooling water system using filtered mainswater and Pseudomonas fluorescens as the test bacteria. A summary of the results obtained is presented and an interpretation of these results relating to the full-scale application of ozone Cited by: 6.

Book Reviews Use of Ozone as a Biocide in Cooling Water Systems. Laboratory Studies about its Biocidal Efficacy and Effect on the Corrosion of Mild and Stainless SteelCited by: 3.

Ozone as active substance under the Biocidal Products Regulation Bernhard Paolini, Degrémont Technologies AG (OZONIA) and Chairman of the Ozone Registration Group Dr.

Tim Pühmeier, Xylem (WEDECO); Dr. Jörg Mielcke, Xylem (WEDECO); Dr. Matthias Rothe, ProMinent. Experts in Chem-Feed and Water Treatment Ozone as effective biocide for microbiological and antifouling control water system Wolfgang Matheis ProMinent ProMaqua GmbH Maaßstraße 32/1, D Heidelberg Tel.

+49 ()Fax. +49 () [Show full abstract] mm, the ozone concentration as high as g/Nm³ is obtained under a high power density of 1W/cm² and the temperature of a cooling water of 15°C.

Read more Article. The use of Ozone has become an optional biocide in smaller cooling towers, evaporative condensers and process applications where low to moderate traditional biocides, such as bleach and bromine.

cooling water systems, it provides a high level of thermal conductivity, the ability to absorb heat and transport it away. When we use water to lower the operating temperature of equipment or entire plants, it is called cooling water. Industries such as power, pulp and paper, oil and gas, ethanol, steel, mining, leather and manufacturingFile Size: 2MB.

Ozone is more environmentally friendly than chlorine, because it does not add chlorine to the water system. Due to its decomposition to oxygen it will not harm aquatic life. Usually ppm of ozone is added to a water system, either on continuous or intermittent basis.

Abstract Ozone is reported to be effective against Legionella in water systems such cooling towers and tap water pipelines. Until now, most of the studies performed to asses the efficiency of.

COOLING WATER PROBLEMS AND SOLUTIONS Water is used in cooling systems as a heat transfer medium and frequently also as the final point to reject heat into the atmosphere by evaporating inside cooling towers.

Depending on the quality of available fresh water supply, waterside problems develop in cooling water systems Missing: biocide. Ozone in Cooling Water Treatment. By Mario C. Uy, World Environmental Technologies, Inc. When commercial ozone generators were first introduced for cooling water treatment, they were marketed as a stand-alone treatment, a cure-all or panacea.

We now know this is not the case. Because there have been many misconceptions regarding ozone, this. Ozone application in cooling water treatment is a good option for water quality control in a cooling water system.

Ozone leads to savings of: Anti-scaling and anti-corrosion agents - Acid dosages - Water use - Storage and transport costs of chemical biocides - Pump capacity (more efficient heat transfer; lower energy use; higher yield heat exchanger).

The ultimate objective of a biocide is to prevent biofilms (sessile bacteria) from forming and to limit the existence of pathogens. Assuming the cooling system is free of bacteria and biofilms, how do they become established.

Bacteria are introduced into the cooling water system from the air, the makeup water, or a process contamination. Size: KB. Abstract. To combat the problem of biofilm formation in cooling water systems biocides are used and chlorine has been most commonly employed.

Legislative restrictions on effluent chlorine residuals and concern over toxicity from its reaction products requires that Cited by: 9. Ozone is produced in an ozone generator and usually injected continuously into the cooling water system in a branch stream.

The microorganisms in the systems are thus under permanent attack and microorganism counts are held at a very low level. Microbiological Control Strategy in Cooling Tower Systems By Dave Christophersen, Vice Some oxidizing biocides used in cooling tower systems include: Chlorine Bromine Iodine Chlorine dioxide Ozone Bacteria are introduced into the cooling water system from the air, the makeup water, or a process Size: KB.

Ambient air is compressed, dried, and then ionized in the generator to produce ozone. Ozone is typically applied to cooling water through a side stream of the circulating tower water as is illustrated in Figure 2.

Fig. Process for Ozone Treatment of Cooling Tower Water. Ozone is highly reactive and because of this has a very short half-life once dissolved into water. The natural reaction for ozone (0 3) is to return to its oxygen form (0 2). This reaction time is typically minutes at 20ºC.

This means that any bleed from an ozone treated non-ferrous cooling system will not contain any chemical biocides.

The pros and cons of the use of ozone in cooling water systems have been reviewed by Viera et al. When compared with chlorine and bromine, ozone eliminates planktonic bacteria more quickly and effectively with a complete destruction of the organic material.

Consequently, cooling water is cleaner and biofouling of the pipes is by: Cooling Water Cooling Tower Hypochlorous Acid Chlorine Concentration Cooling Water System These keywords were added by machine and not by the authors.

This process is experimental and the keywords may be updated as the learning algorithm by: 8. Biocide Systems is proud to introduce their Bio-Shocker line of Chlorine Dioxide odor eliminating products.

These products exclusively use the revolutionary ClO2-DMG Technology that delivers the super odor eliminating power of Chlorine Dioxide, also known as ClO/5().Ozone kills bacteria like legionella 3, times faster than chlorine.

Great for cooling tower, ozone water treatment system is a powerful disinfectant, deodorizer & air purifier. Ozone is safe to use, is non-carcinogenic, & produces no residues or toxic by-products.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 by: 5.