Envirolyte Egypt

Comparison of disinfectants

Properties of water disinfectants

Disinfection center Description Benefits Disadvantages
Chlorine In gaseous state requires the highest safety requirements
  • Oxidant and effective disinfectant
  • Removal of taste and odor
  • prevents the growth of algae and microorganisms.
  • contaminated organic substances
  • Oxidized iron and magnesium.
  • Solves hydrogen sulfide, cyanide, ammonium and other nitrogens.
  • Create safe conditions for the transport and storage
  • Health risk in case of a leak
  • the formation of disinfection by-products such as chloroform
Hypochlorite Forms used as liquid and granules (10-20% concentration)
  • Effective against most microorganisms
  • Relatively safe in the storage and use
  • Is produced locally
  • Not Effective in cysts (Giardia, Cryptosporidium)
  • no long-term effect
  • must be used immediately or stored with elaborate special permits.
  • product loses effectiveness when long term stored.
Chlorine dioxide plants Production only locally.This disinfectant is among the strongest, which is available on the market
  • Works only in small doses
  • Facilitates the formation of trihalomethane
  • Destroy the phenols
  • Kills odors and flavors
  • oxidant and disinfectant for all types of microorganisms and effective in cysts (Giardia, Cryptosporidium) and viruses
  • Very fast oxidation in water at iron and magnesium
  • Production only locally
  • Requires the transport and storage of chemicals
  • loses its effectiveness when it reacts with the organic matter
  • Makes byproducts
  • Own forms of chlorite and chloride ions
Chloramine A result of the reaction of ammonia with chlorine. It is used as a disinfectant
  • Dispositifs stables et à long terme Repercussion
  • facilité le goût et de l'déplacement you odeur étrangers
  • Réduit le niveau du trihalomethane et de la génération acidic chlore-organique
  • empêche la formation of Humeurs visqueuses biologiques dans the systèmes de distribution
  • Strong long-term effect
  • Eliminates odors and flavors
  • Reduces the level of trihalomethanes
  • Prevents the formation of biological viscous moods in the distribution
  • Weak disinfectant and low oxidation compared to chlorine
  • Not effective against viruses and cysts (Giardia, Cryptosporidium)
  • Dangerous in the application
  • Make as by-products containing nitrogen
Alternatives
Ozone Has been used for several decades in some of European countries for the purpose of disinfection.Inhibits the taste and the smell.
  • Powerful application in the disinfection and oxidation
  • Very effective against Giardia, Cryptospridium and other pathogenic bacteria.
  • Makes it easier to move the turbidity of the water.
  • Removes the tastes and smells.
  • Does not contain chlorine
  • Formation of by-products: aldehydes, ketones, organic acids, trihalomethanes, bromine, (bromoform included), bromate (in the presence of bromides). Peroxide
  • The use of biologically active filters for the removal of by-products are required
  • No 100% disinfectant
  • High cost
  • High expenditures for maintenance and installation
The ultra-violet UV rays can eliminate different types of microorganisms in the water.
  • Does not require storage or transport of chemicals.
  • It do not form types of by-products.
  • High residual risk.
  • Not effective against cysts (Giardia, Cryptospridium).
  • Complicated installation and maintenance
  • High energy costs
  • Disinfection is on the turbidity of the water and the hardness (deposits on the surface of the bulb) dependent
  • UV lamps are relatively vulnerable.
Electrochemical activation
Anolyte A disinfectant is produced by the water, electricity and a salt brine through a electrodiaphragmalysis.
  • High Performance disinfection and oxidation.
  • Very effective against all types of bacteria and viruses.
  • Very effective as sporicide.
  • Removes the bad taste and odor.
  • Removes the biofilm.
  • Significantly less formation of compounds, halogens and TMT of chlorine.
  • Harmless and non-toxic product
  • Cost effective
  • No problem with transport or storage.
  • storage and handling easy and secure.
  • Good ventilation is required in order to absorb any resulting vapors at the production site.