H₂O₂ Decontamination Technology

In the field of decontamination Ortner relies completely on the H₂O₂ decontamination technology which is currently the most environmentally compatible process for the decontamination of surfaces.

Hydrogen peroxide, an excellent oxidation agent, has the ability to kill bacteria, viruses, fungi and spores without residue. The H₂O₂ decontamination technology is environmentally compatible and safe because no visible or toxic residues are formed by the decomposition into water H₂O and oxygen O₂, and their release into the atmosphere is permitted.

The H₂O₂ decontamination technology can be used practically everywhere and even works where other procedures cannot used or can only be utilised with great difficulty. The H₂O₂ decontamination technology is preferentially employed in the pharmaceutical industry, in medicine technology, in animal husbandry, in hospitals, in biochemical testing facilities and even in the food industry.

Challenges of H₂O₂ decontamination


Due to the different partial pressure between H₂O₂ and water, the H₂O₂ concentration in the condensate often increases and changes. Condensate concentrates during the process and can lead to surface damage.

Many materials used in the H₂O₂ process absorb moisture and release it. For the safe and successful use of this technology, it is therefore crucial to know the absorption and desorption behavior of the different materials.




The D-value (=decimal reduction time) is the time required to reduce the initial concentration of a particular population of microorganisms by a power of 10, i.e. 90%, under precisely defined conditions, such as at a given temperature. Each microorganism has its own D-Value.

In H₂O₂ decontamination, the highly resistant bacterial spores of geobacillus stearothermophilus are used as control elements.

Hydrogen Peroxide H₂O₂

Hydrogen Peroxide is a strong oxidant (E0= +1,78 [V] H₂O₂/H₂O). It is successfully used to fight bacteria, viruses, fungi and spores. H₂O₂ predominantly attacks the enveloping proteins of the microorganisms, denatures or oxidizes them and can thus ensure the inactivation of viruses and the killing of unwanted microorganisms.

No toxic residues are formed during the decomposition of H₂O₂ (decomposition occurs in water and oxygen), which allows the process to be applied in a particularly environmentally friendly manner.  

The killing of microorganisms
by heat oxidation is effected
primarily by the denaturation
of cell proteins. Microorganisms
are killed by wet heat already
at low temperatures.


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