Twinoxide

Twinoxide is a safe, reliable, fast acting and highly effective biocidal water disinfectant. It has 260% more disinfection power than chlorine (the traditional and widely used water disinfectant).

Twinoxide is highly effective against all waterborne microorganisms, spore forming bacteria, viruses, protozoa and fungi. It will also remove any biofilm (this is thick spider web-like matrix containing aggregates of organisms where they can flourish).

Twinoixe functions over wide range of pH, it is effective in sweet, salt, hard and soft water.

Twinoxide is a two-component powder kit which when mixed produces a 0.3% chlorine dioxide solution. The powder product has a shelf-life of 5 years.

The two Twinoxide sachets (compound A and compond B), a total of 40g, are dissolved in 1 litre of water to produce a 1 litre 0.3% chlorine dioxide solution. This has a shelf-life of 30-40 days (depending on storage conditions). It is the chlorine dioxide which provides the disinfection.

The standard dosing of Twinoxide is between 0.05 ppm to 0.2 ppm (parts per million). To achieve a dosing concentration of 0.05 ppm the 1 litre 0.3% Twinoxide solution is diluted to 60,000 of water; to achieve a dosing concentration of 0.2 ppm the 1 litre 0.3% Twinoxide solution is diluted to 15,000.

Twinoxide has been approved according to the European Community Regulation EN 12671 for quality of drinking water, it has been approved in Germany by TVO (Trinkwasser verordnung) which is the most stringent law on drinking water in the world, it is NSF certified and approved by numerous countries around the world (including UK and Pakistan).

More information available from Twinoxide International at www.twinoxide.com

Chlorine Dioxide as a water disinfectant

Chlorine dioxide is a very effective water disinfectant.

The criteria for qualification for a disinfecting agent as defined by US EPA is:

1. A 99.9% Reduction in Giardia Lamblia (3 log reduction);
2. Zero Lactose Fermenting Coliformsl;
3. Less Than 10 cfu/ml Non-Lactose Fermenting Coliforms;
4. 99.99% Reduction in Enteric Virus Concentrations (4 log reduction);
5. ClO2 is shown to be an effective disinfectant at residual concentrations of between 0.2 and 0.8 ppm.

For example, 0.3 – 0.4 ppm ClO2 completely deactivates tough Crytosporidium cysts in less than 20 minutes. ClO2 penetrates the cell wall of the microorganism and disrupts metabolic functions of the cell. This is more efficient than other oxidizers that “burn” whatever they come in contact with. This allows for lower effective concentrations to be used.



The advantages of chlorine dioxide include:

1. The bactericidal efficiency is relatively unaffected by pH values between 4 and 10;
2. Chlorine dioxide is clearly superior to chlorine in the destruction of spores, bacteria's, viruses and other pathogen organisms on an equal residual base;
3. The required contact time for ClO2 is lower;
4. Chlorine dioxide has better solubility;
5. No corrosion associated with high chlorine concentrations. Reduces long term maintenance costs;
6. Chlorine dioxide does not react with NH3 or NH4+;
7. It destroys THM precursors and increases coagulation;
8. ClO2 destroys phenols and has no distinct smell;
9. It is better at removing iron and magnesia compounds than chlorine, especially complex bounds;