cooling tower legionella control Articles

  • Cooling tower legionella pneumophila study CDC

    Abstract Since the late 1970s, there have been many small and large outbreaks of Legionnaires’ disease. Most of these outbreaks have been traced to either cooling tower water systems or potable water systems. Although the bacteria most often associated with Legionnair’s disease, Legionella pneumophila, is present in many waater systems, outbreaks are usually a result of ...


    By Zentox Corporation

  • Legionella

    Nomenclature Legionnaires' disease a pneumonia caused by any serogroup or sub-group of Legionella pneumophila Legionella pneumonia a pneumonia caused by any species of Legionella Pontiac Fever an acute, self-limiting, “flu-like” illness caused by certain species of Legionella Legionellosis any human ...

  • Maintaining Microbiological Control in Cooling Towers

    Go Beyond the Clean-up Power of AMSA BCP Chemistry Witnessing the clean-up of a heavily fouled cooling tower or cooling water system can be a dramatic experience. Many customers are sold on the strengths of ...


    By AMSA, Inc.

  • Cooling tower case study

    Cooling towers have always been difficult to control. Algae grow in the cooling tower itself and on the grids used. In addition to micro-organisms and biofilm, they reduce the efficiency of the cooling tower. Furthermore the risk of spreading Legionella is a serous factor to be reckoned with. Many of the traditional methods to fight algae are either insufficient, cumbersome, environmentally ...


    By LG Sonic

  • Ultrasonic technology in cooling towers

    Ultrasound technology is an effective and environmentally friendly method to minimise chemical consumption and improve the efficiency of a cooling tower, says Ander Paz Blazquez. Low-intensity ultrasound has been used for more than a decade in order to control algae and biofilm growth. Latest innovations have concluded that effective algae control is achieved through the use Ultrasound ...


    By LG Sonic

  • Hospital cooling tower application

    The Challenge: One of the largest teaching hospitals in Illinois wanted to improve safety and “green” operations in their cooling tower water treatment chemical regimen without sacrificing effectiveness. The Solution: Replacement of bulk bleach with on-site generated MIOX® mixed oxidant solution, Earthwise reduced the hospital's liability from ...

  • The Control of pH and Oxidation Reduction Potential (ORP) in Cooling Tower Applications

    The importance of keeping cooling tower water in proper chemical balance is becoming clearer. Cooling tower treatment control systems can limit scale formation to improve efficiency, limit corrosion to increase the service life of the cooling water system, and maintain a residual halogen level to reduce liability associated with biological growth, particularly Legionellae.   The use of ...


    By Walchem, Iwaki America Inc.

  • The importance of a dispersant in a Legionella Control Program

    Outbreaks in Legionnaires’ Disease such as the one in the South Bronx of New York in August 2015 highlights the importance of having effective biofilm control as part of your overall industrial water treatment program. ...


    By AMSA, Inc.

  • Economical calculations for the use of Ozone in Cooling Towers

    Abstract Ozone has been successfully applied to industrial cooling water systems with the resultant improvement in operational efficiency due to increased heat transfer, reduced system corrosion, improved environmental impact and reduced on-going chemical expenditure. The aim of this paper is to provide practical advice on the options available for the application of ozone and the potential ...


    By Absolute Systems Inc.

  • Managing Legionella in Facilities

    The Energy Institute (EI)’s Occupational Health and Hygiene Committee (OHHC) is soon to publish an updated, second edition of its technical guidance on Legionella risk management and control, and new technical guidance on the control of Legionella in cooling towers. Legionellosis, also known as ‘Legionnaires’ disease’ is a severe strain of pneumonia which was so ...


    By Energy Institute (EI)

  • Controlling scale in water systems helps prevent legionella

    The Legionella bacterium, Legionella Pneumophila (LP), the fundamental agent of Legionnaire’s Disease, is a water-based organism, which causes infection when inhaled in an aerosol form. Legionnaires' Disease acquired its name in 1976 when an outbreak of pneumonia occurred among persons attending a convention of the American Legion in Philadelphia. Later, the bacterium causing the illness ...

  • Remove algae and biofilm from cooling tower basins - Case Study

    Possibilities & Expectations of the LG Sonic for cooling tower treatment: LG Sonic devices control the bacterial population in cooling tower systems by severely inhibiting biofilm formation. This provides a large market potential in cooling water treatment applications. It is well known that Legionella bacteria propagate by reproducing within a larger organism like parasites, ...


    By LG Sonic

  • DOCUPAK LLC REDUCES COOLING TOWER CHEMICAL USAGE BY A THIRD

    Docupak LLC, a full service marketing company headquartered in Alabaster, Alabama, has reduced chemical usage by a third and removed all scale from its cooling tower at its plant after installing the patented, award-winning Scalewatcher computerized, electronic water-conditioner from Scalewatcher North America.   In addition ...

  • Treated vs. Untreated Cooling Tower Water: Risks for Your Plant

    When an industrial plant or building decides whether or not to invest in a cooling tower water treatment system, it is a decision that shouldn’t be taken lightly. Petrochemical plants, chemical manufacturers, refineries, and all kinds of large buildings and facilities using cooling towers, whether they’re used as part of the industrial process or for cooling/removing heat from the ...


    By SAMCO Technologies, Inc.

  • How Do You Know If You Need a Cooling Tower Water Treatment System for Your Plant?

    In order to keep your production flowing smoothly and avoid costly damage to your cooling tower equipment, the proper treatment of your cooling tower water is essential. If cooling tower water is not properly treated, organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the road. ...


    By SAMCO Technologies, Inc.

  • Legionnaires’ disease (Legionella pneumophila)-sometimes deadly, sometimes not!

    More than 90% of Legionella cases are caused by Legionella pneumophila, a bacterium that thrives in warm to hot water.  Pipes, tanks, faucets, showerheads, and hot water heaters are ideal breeding grounds for L. pneumophila.  Since infection with Legionella occurs through inhaling the bacterium, any activity in which contaminated water can be misted and subsequently inhaled can lead to ...

  • Process cooling in Singapore case study

    Chemical free Scale and Legionella prevention by Fluid Dynamics Introduction The client, Sunstream International is a company specialising in plastics sheet extrusion. Sunstream were installing a new extrusion line in their existing factory. The line has two chillers and a 50RT cooling tower positioned on the roof space. Space was at a premium and also previous ...

  • BioSense a Biofilm Monitor and Controller

    Abstract Biofilms (slime) can form on virtually every nonshedding surface, in a nonsterile aqueous environment i.e. anywhere where a water source is present; such as cooling/heating systems, swimming areas and in drinking water purification. These Biofilms can cause a myriad of problems including; harbouring harmful bacteria such as Legionella, inducing corrosion, and reducing ...


    By Sensara, SL

  • Biofilm Control for Industrial Waters

    Industrial operations can face a number of serious problems due to bacterial Biofilms growing in process water systems and cooling tower waters. Biofilm-induced corrosion, mechanical blockages and impedance of heat transfer processes result in huge monetary losses each year. In engineered systems, additional risks of biofilm-mediated contamination include negative public health consequences and ...

  • Chemical disinfection of Legionella in hot water systems biofilm: a pilot-scale 1 study

    Legionella bacteria encounter optimum growing conditions in hot water systems and cooling towers. A pilot-scale 1 unit was built in order to study the biofilm disinfection. It consisted of two identical loops, one used as a control and the other as a ‘Test Loop’. A combination of a bio-detergent and a biocide (hydrogen peroxide + peracetic acid) was applied in the Test Loop three times under the ...


    By IWA Publishing

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