Alternative Technologies – Chlorine Dioxide
First used in beginning of 20th century, Ostend Belgium.
Known powerful water disinfectant, implemented to water disinfection in 1950’s.
Approximately 700-900 installations in water treatment.
Does not react with organics in the same way chlorine does.
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Chlorine Dioxide Disinfection System For Desalinated Water In Qatar
Meeting the goal of clean, safe drinking water requires a multi-barrier approach that includes:
•Protecting source water from contamination,
•Appropriately treating raw water,
•And ensuring safe distribution of treated water to consumers’ taps.
Chlorine Dioxide Disinfection System For Desalinated Water In Qatar
Meeting the goal of clean, safe drinking water requires a multi-barrier approach that includes:
•Protecting source water from contamination,
•Appropriately treating raw water,
•And ensuring safe distribution of treated water to consumers’ taps.
Chlorination: Disinfection And Oxidation
• Disease causing organisms can be found in surface water and some in ground water, some can be removed by preliminary, primary and secondary treatments processes. But not all are removed.
• The addition of a chemical disinfectant is necessary if a water treatment processes is to meet the coliform MCL, preventing any water borne diseases.
• Cl2, due to it relatively low cost & ease with which it be obtained is the most commonly used chemical for this purpose.
• Chlorine is available in 3 forms:
1. Chlorine Gas
2. Calcium or Sodium Hypochlorite solution
3. Calcium or Sodium Hypochlorite powder (HTH)
Chlorination: Disinfection And Oxidation
• Disease causing organisms can be found in surface water and some in ground water, some can be removed by preliminary, primary and secondary treatments processes. But not all are removed.
• The addition of a chemical disinfectant is necessary if a water treatment processes is to meet the coliform MCL, preventing any water borne diseases.
• Cl2, due to it relatively low cost & ease with which it be obtained is the most commonly used chemical for this purpose.
• Chlorine is available in 3 forms:
1. Chlorine Gas
2. Calcium or Sodium Hypochlorite solution
3. Calcium or Sodium Hypochlorite powder (HTH)
Disinfection and Oxidation
Disinfection:
is killing or inactivate of pathogenic organisms. It is necessary if the water to be used for drinking water is not hygienically reliable. In water treatment, aimed at the production of drinking water, disinfection is the most important treatment step. Purpose of disinfection: To make Drinking water free of any disease causing bacteria and microbes.
Disinfection and Oxidation
Disinfection:
is killing or inactivate of pathogenic organisms. It is necessary if the water to be used for drinking water is not hygienically reliable. In water treatment, aimed at the production of drinking water, disinfection is the most important treatment step. Purpose of disinfection: To make Drinking water free of any disease causing bacteria and microbes.
Lecture 3: Disinfection and Oxidation
Disinfection:
is killing or inactivate of pathogenic organisms. It is necessary if the water to be used for drinking water is not hygienically reliable. In water treatment, aimed at the production of drinking water, disinfection is the most important treatment step.
Lecture 3: Disinfection and Oxidation
Disinfection:
is killing or inactivate of pathogenic organisms. It is necessary if the water to be used for drinking water is not hygienically reliable. In water treatment, aimed at the production of drinking water, disinfection is the most important treatment step.
Disinfection of Water
This course includes content developed by the Pennsylvania Department of Environmental Protection
(Pa. DEP) in cooperation with the following contractors, subcontractors, or grantees:
The Pennsylvania State Association of Township Supervisors (PSATS)
Gannett Fleming, Inc.
Dering Consulting Group
Penn State Harrisburg Environmental Training Center
Disinfection of Water
This course includes content developed by the Pennsylvania Department of Environmental Protection
(Pa. DEP) in cooperation with the following contractors, subcontractors, or grantees:
The Pennsylvania State Association of Township Supervisors (PSATS)
Gannett Fleming, Inc.
Dering Consulting Group
Penn State Harrisburg Environmental Training Center
Evaluation of Chlorine Dioxide (ClO2) Generation System for Disinfection in RO Product Water at SWCC Jubail Plant
Recent studies have shown the formation of bromate in desalination-derived drinking water, especially when the desalinated water is treated with sodium
hypochlorite solution produced by electrolyzing seawater.
Evaluation of Chlorine Dioxide (ClO2) Generation System for Disinfection in RO Product Water at SWCC Jubail Plant
Recent studies have shown the formation of bromate in desalination-derived drinking water, especially when the desalinated water is treated with sodium
hypochlorite solution produced by electrolyzing seawater.
Disinfection
The destruction of pathogenic organisms
Not to be confused with sterilization, which is the destruction of all organisms
Chlorine is the most widely used disinfecting chemical
Disinfection
The destruction of pathogenic organisms
Not to be confused with sterilization, which is the destruction of all organisms
Chlorine is the most widely used disinfecting chemical
General Overview Volume III
. Explain the general purpose and regulatory requirements of the disinfection process.
. List bacteria, viruses and intestinal parasites that contaminate drinking water.
. List factors that influence disinfection and explain how they influence it.
. List five types of chemical disinfectants and explain the advantages and disadvantages of each.
. Explain how irradiation is used as a disinfection process.
General Overview Volume III
. Explain the general purpose and regulatory requirements of the disinfection process.
. List bacteria, viruses and intestinal parasites that contaminate drinking water.
. List factors that influence disinfection and explain how they influence it.
. List five types of chemical disinfectants and explain the advantages and disadvantages of each.
. Explain how irradiation is used as a disinfection process.
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