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  • INTERNATIONAL WATER SOLUTIONS

    beyond water disinfection

  • INTERNATIONAL WATER SOLUTIONS

    beyond water disinfection

  • INTERNATIONAL WATER SOLUTIONS

    beyond water disinfection

BACTERIAL CONTROL WITHIN COOLING TOWERS

//COOLING TOWERS
COOLING TOWERS 2017-09-28T12:04:16+00:00

COOLING TOWERS WITH THEIR COMBINATION OF MOISTURE, WARMTH, AIR AND NUTRIENTS CREATE AN IDEAL ENVIRONMENT FOR THE GROWTH OF MICROORGANISMS. THIS BIOLOGICAL ACTIVITY RESULTS IN MANY PROBLEMS

SERIOUS PROBLEMS ARISING FROM WATER SYSTEMS IN COOLING TOWERS

  • Growth of slime and biofilm on heat transfer surfaces leading to reduced thermal efficiency
  • Increased corrosion rates as a result of the formation of electrochemical cells within the biofilm and microbiologically induced corrosion (MIC) due to the presence of anaerobic bacteria in the biofilm
  • Reduced efficiency of added corrosion inhibitors due to biofilm blocking contact of the corrosion inhibitors with the metal surface
  • Increased pumping energy to overcome the additional friction created by the presence of biofilm
  • Build up of objectionable odours
  • Potential for pathogenic microorganisms to be harboured in the circulating water (e.g. Legionella)

THE ADVANTAGES OF XZIOX® SYSTEMS IN COOLING TOWERS

  • Effective over a broad pH range.
  • Controls bacteria, fungi, viruses, biofilm, protozoa and algae.
  • Does not react with ammonia and does not produce toxic compounds in contact with organic materials present in water.
  • Effective at considerably lower dose rates than chlorine or bromine.
  • Not corrosive to all equipment, pipe work and filters.
  • Degrades to harmless inorganic chemicals.

BACTERIAL CONTROL

XZIOX® is effective against algae, bacteria, bacterial spore, fungi, protozoa and viruses and is the only method of disinfection that is effective at controlling biofilm.

XZIOX® remains effective over a wide pH range from about 4 to 10. It does not react with ammonia or organic matter in the water and at the recommended dose rates is not corrosive. Residual chemical rapidly breaks down to harmless inorganic compounds making discharge water less toxic to the environment than conventional biocides.

Although chlorine and bromine are regarded as broad specturm biocides, they are relatively ineffective against algae and generally do not control biofilm. In addition some pathogenic organisms (notably cryptosporidium) can develop resistance to chlorine. Non-oxidising biocides are not broad spectrum biocides and only control a narrow range of organisms depending on the biocide used. XZIOX® is a broad specturm biocide effectiveagainst all microorganisms.

MANUFACTURED IN THE UK
APPROVED UNDER REGULATION
31 OF THE WATER SUPPLY
REGULATIONS 2000
APPROVED BY THE
SECRETARY OF STATE FOR
USE IN PUBLIC WATER SUPPLIES
CERTIFIED BY NSF

CONTROL OF BIOFILM AND ALGAE

XZIOX® controls biofilm more effectively than chlorine, bromine or non-oxidising biocides even when dosed intermittently. XZIOX® manufactured by IWS in the UK is patented pending water treatment solution called XZIOX®, which is a tried and tested, high quality solution for water issues in cooling towers. XZIOX® does not hydrolyse in water and does not react with the polysaccharides holding the biofilm together.

Consequently, it is able to diffuse deep into the biofilm layers destroying the microorganisms that are present. Although Chlorine can provide biofilm control in cooling systems if the system is relatively clean and continuous dosing is maintained, if biofilm is already present or continuous dosing is not rigorously maintained, continuous dosing will not control biofilm.

XZIOX® controls algae more effectively than chlorine, bromine or non-oxidising biocides even when dosed intermittently. If conditions for the growth of algae are present, chlorine is only effective if it is dosed continuously. Even in otherwise clean cooling systems, chlorine often fails to control algae. Bromine is generally less effective than chlorine at controlling algae.

99.99%

XZIOX® REMOVES 99.99%
HARMFUL ORGANISMS INCLUDING:

  • E-COLI

  • TVC’S

  • COLIFORMS

  • PYTHIUM

  • PHYTOPHTHORA

  • FUNGI

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