When Vienna Airport’s air handling system was failing to address the high bacterial load for its 19 million passengers, the introduction of new technology brought significant results
Grander Revitalised Water Technology is designed for use in both the commercial and domestic sectors for mission-critical cooling and cleaning applications, with the benefit of reducing usage chemicals and increased water stability.
In 2009 Vienna Airport’s air handling system was failing to maintain stability and changing the chemical dosing strategy was not making any difference. Tests according to DIN 6222 showed a high bacterial load on the air.
Vienna Airport has 19 million passengers passing through its doors every year, with 246 thousand take-offs and landings every year. Since installation of the Grander system, the chemical agent was no longer required. The agent had the function of a dispersant and biocide.
Among the improvements were:
- Reduction in chemicals required, improved air quality;
- Reduced scale formation in nozzles and filter registers;
- Significantly less problems with calcification;
- Trouble-free operation;
- Noticeable improvement of indoor air quality;
- Comfortable indoor climate.
Since the installation of Grander, chemical detergents are no longer used. Cost savings are some €8.000 per year and investment costs (including mountings) are approximately € 4,000, the firm says.
Grander Water Revitalisation technology was first installed at the Vienna-Schwechat airport in three climate chambers in the departures building in 2003. The result was that the use of biocides and lime scale stabilisers could be reduced.
When Grander was installed in the central garage as part of the vehicle washing unit (carriage and engine) in 2005, the cleaning time was also reduced considerably.
Four years later, water revitalisation technology was introduced for drinking water and running warm water in the General Aviation Centre (VIP terminal). The bacteriological results from the water samples, which are taken bi-annually, were successful and further locations for Grander systems were considered.
The most recent hygiene-related laboratory tests are convincing: excellent bacteriological results have been recorded in all ‘revitalised’ buildings and terminals.
Head of utilities Karl Heinz Santruschitz says: “We now have fewer problems with water supplements and other substances and we are able to reduce the use of chemicals at the same time. The Grander systems started paying for themselves after only half a year.”
At the heart of all Grander devices lies the core operating system that has not changed since the advent of Johann Grander’s discovery 30 years ago, when he found a way to use water as a medium to carry high frequency bio-photons that are imparted via a proprietary ‘implosive induction generator’.
The water created is termed ‘Information Water’ and is held within the metal flow through devices or submersible rods for break tanks.
This water does not come into direct contact with other water – instead, it emanates its own unique high frequency signature, which then causes the exposed water to become revitalised and to display the characteristics outlined.
The devices last indefinitely and have been certified as hygienic and technically safe and are UK WRAS-approved for all potable devices.
They are manufactured in durable high quality V2A-stainless steel, which ensures a long lifespan.
Grander technology works within the new subcategory of water physics, which is at the frontier of water science research, the firm claims. One of the key distinctions is that water has an inner structural architecture associated in part with the angle of hydrogen bonding.
The technology is able to resolve many diverse issues that chemical dosing on its own is unable to deal with. Key findings from users are:
- Lower surface tension, resulting in surfactant reduction by up to 30 per cent;
- Natural anti-microbial properties, resulting in spooling back of chemicals;
- Reduced Biofilm and Pseudomonas bacteria;
- Increased calcite saturation point resulting in highly stable heat exchangers;
- Stable water platform for both potable storage and closed wet systems;
- Increased oxygen saturation;
- Increased aerobic and decreased anaerobic activity.