Physical
and Physical-Chemical Data
by Mag. Klaus Faissner
Thesis Report 
Thesis Report at the Institute for Process and Environment Technology at the Technical University of Graz (Austria) under the tutorship and approval of Professor Dr. Rolf Marr in March 2000.
The thesis report comprises two parts: - Laboratory experiments comparing the physical properties of revitalized water using Grander Technology with non-revitalized water, and
- an evaluation of the results obtained from a questionnaire filled out and returned by users of Grander Technology in various industries
Ten businesses Ten businesses, ranging from a public hospital to a chemical company to a leading specialist plastics manufacturer with global presence, were chosen to answer questions about their practical experience when using the Grander Technology. The results shown in this thesis show many different aspects and benefits.
Companies and businesses are naturally mainly interested in cost savings achieved by the application of this technology. Savings in chemicals were a particular focus. The results speak for themselves: one company stated that they achieved annual savings of Euro 47,237 compared to an investment of Euro 11,628.
Interesting results were posted by another company that did not experience any significant changes. It was only after the thesis had been completed and technical changes in the application of Grander technology were made, i.e. no chemicals were used anymore in the cooling circuits, the result was and still is a microbiologically totally stable water in the cooling circuit. Excerpt of Chapter 5. - Summary I received information on the use of the Grander Technology in practice from nine industrial companies and one hospital facility who all completed my questionnaire. It was found that the Grander Technology was frequently installed in cooling water circuits which thus also formed a key topic of the poll.
The companies decided to install the Grander Technology for the most varied reasons: the most frequent aim of the companies was a reduction in chemicals used. In addition to economic aspects, companies also quoted considerations of environmental protection and employee protection (particularly with regard to contact with biocides).
Other important reasons for companies to install Grander Technology was to find a solution for their problems with algae formation, limescale, incrustations and deposits, short maintenance intervals, down times and microbiological problems in general.
All the information presented on the experiences was provided by the users. Each industrial application has its own specifics and therefore it is difficult to draw general conclusions.
In all problem areas (algae formation, chemical consumption, limescale and other deposits, corrosion, heat capacity, maintenance), there were cases where the use of Grander Technology met the expectations or even exceeded them. Eight of the ten companies were very satisfied or satisfied with the Grander Technology at the time of the poll. In one company, the Grander Technology only worked as desired for a few months. One company had not been able to notice any positive effects of the Grander Technology at the time of the study. But one year later when the use of chemicals was reduced the cooling water showed a sudden improvement despite less chemicals used.
Econiomically the pay-back period of the investment in Grander Technology was less than one year with six companies and less than 2.5 years with two others. Two companies were unable to tell a specific pay-back period. The biggest savings reported were more than 47.000 Euros per year; the savings in chemicals alone were € 22.000 a year in this case. | 