cooling tower Articles
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Enumeration of Legionella pneumophila in cooling tower water systems
Legionella pneumophila, the causative agent of Legionnaires disease, is known to colonise and frequently grow in cooling tower waters. Disease is acquired by inhaling aerosol contaminated by legionellae. Determination of the count of Legionella pneumophila in cooling tower waters may, therefore, be useful for risk assessment. In our survey, 103 water samples from 50 cooling towers were examined ...
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Winterizing your Cooling Tower: Clean or Disinfect?
Fall is a busy season for our water quality engineers. They’re helping facility managers prepare open-loop water systems for winter and low-flow season. Part of those winter preparations involves a thorough cooling tower cleaning or disinfection. Read on to learn why that’s important, as well as what to expect. Why Clean Or Disinfect Your Cooling Tower? Like all of the equipment in ...
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The Internet of Water Is Saving Lives While Battling Pollution
The Problem A condition known as Legionnaires' disease has made headlines after it killed a dozen people in Flint, Michigan in 2014 and 2015 and sickened hundreds in New York state last year. A rare but severe type of pneumonia, Legionnaires' kills roughly one in ten people who contract it. The cause of the disease is the Legionella bacterial strain. Water loving, Legionella can contaminate hot ...
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IOT TRENDS AND ANALYSIS The Internet of Water Is Saving Lives While Battling Pollution
he Problem A condition known as Legionnaires' disease has made headlines after it killed a dozen people in Flint, Michigan in 2014 and 2015 and sickened hundreds in New York state last year. A rare but severe type of pneumonia, Legionnaires' kills roughly one in ten people who contract it. The cause of the disease is the Legionella bacterial strain. Water loving, Legionella can contaminate hot ...
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Antibiotic susceptibility of Legionella strains isolated from public water sources in Macau and Guangzhou
The purpose of this study was to investigate the susceptibility of waterborne strains of Legionella to eight antimicrobials commonly used in legionellosis therapy. The minimum inhibitory concentrations (MICs) of 66 environmental Legionella strains, isolated from fountains and cooling towers of public facilities (hotels, schools, and shopping malls) in Macau and Guangzhou, were tested using ...
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Legionnaire’s Disease: More Dangerous for Some
Legionnaire’s Disease is caused by Legionella Bacteria – more specifically Legionella pneumophila. The CDC reports that between 8,000 and 18,000 cases of Legionnaire’s Disease occur in the U.S. each year. The latest incident was in New York City in October 2018 when 29 cases were reported including 1 fatality. It is most dangerous to the very young and very old and those in ...
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Chemical disinfection of
Legionella in hot water systems biofilm: a pilot-scale 1 studyLegionella 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 ...
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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 infection. ...
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Legionella Prevention with Temperature Monitoring
The first-ever Legionella outbreak with over 200 victims was in Philadelphia - United States in the year 1976. Throughout history, scientists have discovered over 50 species of Legionella bacteria. In the UK the first outbreak took place at the Staffordshire Hospital in the year 1985 with 100 cases of which 28 died. Following multiple outbreaks, managing the risk of legionella has fallen under ...
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Legionnaire’s Disease and Pontiac Fever
Legionnaire’s Disease Caused by Legionella Pneumophila Legionnaire’s Disease is an environmentally transmitted disease caused by the Legionella Pneumophila bacteria that infect human hosts who breathe minute droplets of water that have been contaminated with the Legionella organism, a gram-negative bacterium. Legionella Pneumophila – the legionnaire’s disease bacteria ...
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Legionella Found in Closed Schools’ Water Pipes
Growth of Legionnaire’s disease-causing bacterium is just one risk from stagnating water systems As the world has dealt with the COVID-19 pandemic, many school buildings have sat idle for many months longer than usual. The return to these buildings is uncovering another potential health risk. In fact, COVID-19 lockdowns may have helped foster the growth of dangerous bacteria. Earlier ...
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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 disease caused by a species of Legionella ...
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Legionella Prevention in Hotels, Healthcare Industries and Public Hot Tub Operators
Legionnaires’ Disease or LD is a severe and potentially fatal disease that attacks the lungs. It is spread by inhaling or drinking water that’s been contaminated with the bacteria called Legionella. This bacteria thrives in buildings with poorly managed water systems. As such, to reduce the spread of this bacteria, effective water management is a must. This is your responsibility ...
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Biological Water Testing
Improving Water Monitoring for Pathogens and other Microorganisms Water quality and purity is essential for public and environmental health but monitoring drinking water and wastewater for microbial orgamisms can be difficult and time consuming. In this article we want to highlight the Real-time PCR-based detection methods for some major pathogens and microorganisms that increases analysis ...
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