Nr.6036-Consumption of free chlorine dioxide in water

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Which substances consume the chlorine dioxide in drinking water? 
Answer: 
Chlorine dioxide also reacts like any oxidizer  with the chemical substances contained in the water and oxidizes. This applies to all waters, as well as for drinking and bathing water. This chlorine dioxide is consumed (eaten). This spent chlorine dioxide is then no longer available for microbiological disinfection. In the table below some guideline values ​​are indicated. For example, to oxidize 1 mg of iron is required 1.2 mg chlorine dioxide. This quantity is consumed. .

Stoff	Menge in mg	Chlordioxid in mg
Eisen	1	1,2
Mangan	1	2,5
Nitrit	1	2,9
Sulfid	1	2,1
Mercaptane	1	4,5
Amine	1	10
Schwefelwasserstoff	1	5,2
Cyanide	1	2,5
Thiocyanat	1	3,5

Chlorine dioxide is able to split the cyclic hydrocarbon compounds. Also, through this work it is consumed.

Beispiel:

Wasserwerk in Spanien	Iron in mg/l	Chlorine dioxide consumption in ppm
1	0,04	0,048
2	0,08	0,096
3	0,04	0,048
4	0,01	0,012
5	0,3	0,36
6	0,2	0,24
7	0,12	0,144

Dosage of chlorine dioxide  = free chlorine dioxide for disinfection + consumed chlorine dioxide for the oxidation of iron.

Question: What are the consequences of the use of chlorine dioxide for its use as a disinfectant? 
Answer: 
If chlorine dioxide used in the oxidation of materials, it is less for the inactivation of Mikroorganismen. The product of concentration and time of contact determines the destruction of pathogenic microorganisms. Even small amounts of free chlorine dioxide are sufficient. 
When all chlorine dioxide was consumed by inorganic and organic materials, it can not disinfected