Legionella treatment Articles
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ECA Water Treatment & Legionella in Ships – Viking Liner: Gabriella - Case Study
Viking Lines had problems with high bacteria count on board the ships. They therefore decided to take a new initiative to reduce bacteria counts on first Viking Gabriella and then on all other six ships. After two months of extensive trials with anolyte being delivered to the ship in canisters and verification of the results the German accredited laboratory Viking Lines ordered the installation ...
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UV Light Treatment for Legionella Removal in Water and Wastewater
https://www.yasa.ltd/post/uv-light-treatment-for-legionella-removal Since in 1976, this dangerous bacterium leapt to the headlines for the dramatic epidemic episode in the Philadelphia hotel, the history of Legionella has been studded with irrefutable scientific discoveries, but also with many false beliefs. One of these concerns precisely the possibility of eliminating once and for all ...
By YASA ET
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Copper-Silver Ionization: A Simple and Effective Solution for Legionella Remediation
Legionella remediations are treatment processes for controlling Legionella in a building water system, generally deployed after routine Legionella testing returns shows systemic positivity or if a case of Legionnaire’s disease is traced back to the facility. Copper-silver ionization is a proven remedial water treatment method backed by hundreds of independent research studies. ...
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Strategies for the reduction of Legionella in biological treatment systems
A community-wide outbreak of Legionnaire's disease occurred in Warstein, Germany, in August 2013. The epidemic strain, Legionella pneumophila Serogruppe 1, was isolated from an industrial wastewater stream entering the municipal wastewater treatment plant (WWTP) in Wartein, the WWTP itself, the river Wäster and air/water samples from an industrial cooling system 3 km downstream of the WWTP. ...
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Preventative control of legionella through real-time bioburden testing
Abstract: Of the 485,000 annual cases of pneumonia-like sickness in the USA, approximately 15% are attributed to Legionnaire’s Disease. This typically results in health care costs of over $600 million (1, 2, 3). For the most part, these incidents can be prevented through effective monitoring and treatment. Since Legionella thrive within microbial biofilms and host organisms, an effective ...
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Monochloramine and chlorine dioxide for controlling
Legionella pneumophila contamination: biocide levels and disinfection by-product formation in hospital water networksLegionella colonization in hospital hot water distribution networks was evaluated following 36 months of continuous treatment with monochloramine and compared with chlorine dioxide. Nitrite, nitrate, chlorite, chlorate, bromide, trihalomethanes and haloacetic acids as well as the biocide concentration at sampled points were measured. Only 8/84 samples treated with monochloramine were found ...
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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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Legionellosis -- Why the Problem Continues
This year marks the 30 th anniversary of the 1976 American Legion convention of military veterans held in Philadelphia. A mysterious disease outbreak occurred that killed 34 people and debilitated nearly another 200. The media named it Legionnaires’ Disease. In early 1977, the cause of the outbreak had been proven to be a previously unknown waterborne pathogenic bacterium subsequently named ...
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Microbial reduction in wastewater treatment using Fe3+ and Al3+ coagulants and PAA disinfectant
Wastewater is an important source of pathogenic enteric microorganisms in surface water and a major contaminating agent of drinking water. Although primary and secondary wastewater treatments reduce the numbers of microorganisms in wastewater, significant numbers of microbes can still be present in the effluent. The aim of this study was to test the feasibility of tertiary treatment for ...
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Evidence Shows Need to Address Pathogenic Bacteria in U.S. Drinking Water Systems
Legionnaires’ disease is on the rise. Unfortunately, efforts to prevent Legionnaires’ disease to date have focused on building water systems rather than the municipal water supply. Building water systems are too far downstream to correct the problem, and, as a result, these efforts have been ineffective in curbing the incidence of legionellosis. It is unrealistic to place on building ...
By Evapco Inc.
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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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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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