Copper silver ionisation legionella
ATECA is market leader in copper-silver ionisation for legionella prevention.
Swimming pools and copper-silver ionization In the United States, copper-silver ionization is applied as an alternative for chlorine disinfection. Chlorine use can be reduced by 80%. However, another disinfectant should be added in addition to copper-silver. This is because copper-silver cannot remove organic matter, such as skin tissue, hairs, urine and skin flakes, from swimming pool water.Cooling tower water requires disinfection, to prevent the growth of microorganisms. This can be brought about by a combination of copper-silver ionization and chlorine disinfection. Chlorine concentrations that are required are much lower.Copper-silver ionization can also be used to kill Legionella bacteria in cooling towers.Legionella in hospitals and nursing homes and copper-silver ionization Copper-silver ionization is applied in hospitals and nursing homes to prevent the distribution of Legionella bacteria. The main source of Legionella distribution is the warm water system. Circumstances in warm water systems are ideal for Legionella bacteria to grow and multiply. Contagion mainly takes place through shower steam. Copper-silver ionization can sufficiently kill Legionella bacteria. Copper-silver can actively deactivate Legionella, as well.Drinking water and copper-silver ionization In the United States, several drinking water production companies use copper-silver ionization as an alternative for chlorine disinfection and to prevent the formation of disinfection byproducts. The standard for trihalomethanes was decreased by EPA from 100 to 80 µg/L.When copper-silver ionization is combined with chlorine disinfection, it is an excellent disinfection mechanism to deactivate viruses and bacteria.The affectivity of copper-silver disinfection depends on a number of factors:Firstly, the concentration of copper and silver ions in the water should be sufficient. The required concentration is determined by the water flow, the volume of water in the system, the conductivity of the water and the present concentration of microorganisms.Secondly, the electrodes should be in good condition. When the water is hard or fouling takes place as a consequence of water hardness and quality, there will be a decrease in electrode release and the additional effect will decrease. By using pure silver and pure copper, the supply of copper and silver ions can be regulated separately. These electrodes suffer from less limestone formation and fouling.Thirdly, the affectivity of copper-silver ionization depends on the pH value of the water. When pH values are high, copper ions are less effective. When the pH value exceeds 6, insoluble copper complexes will precipitate. When the pH value is 5, copper ions mainly exist as Cu(HCO3)+; when the pH value is 7 as Cu(CO3) and when the pH values is 9 as Cu(CO3)22-.Fourthly, copper-silver ionization affectivity is determined by the presence of chlorine.Copper silver ionisation legionella: Chlorine causes silverchlorine complex formation. When this occurs, silver ions are no longer availbale for disinfection.
Copper silver ionisation legionella
Legionella prevention
Legionella controlplan
Legionella riskanalyses
Copper silver ionisation
Copper silver ionisation legionella
Copper silver legionella
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Copper silver ionisation legionella
ATECA watercare and services Raamweg 17 2596 HL Den Haag Tel: E-mail: CoC: +31 (0)70 3628175 +31 (0)6 41054000 info@ATECA.nlLegionella,prevention,controlplan,riskanalyses,Copper,silver,ionisation: Water analysis and service Accredited laboratory All water analyses are carried out by accredited laboratories.Inspection of the quality of the supply water In order to optimise the functioning of the ICA-system, ATECA has the quality of the supply water inspected prior to installation. This inspection determines the pH balance, conductivity, degree of hardness and chloride content.Analysis of the mains water quality prior to installation One month prior to the installation of the ICA-system, the water quality in the piping network is also analysed. ATECA selects a few tap points for this analysis based on a risk analysis. The analysis concerns the hot water temperature, TVC (22°/37°), copper and silver concentrations and legionella population.Monthly water analysis after installation It is the policy of ATECA to have monthly water analyses carried out during the first year after installation of the ICA-system. The same tap points are always used for these analyses, which provide a good overview of water quality. After the first year, the frequency of the analyses is reduced to once every two months.
ATECA is market leader in copper-silver ionisation for legionella prevention.