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| 3.2.
Scope of observation Until November 1997, chalk was deposited on the jets of a baking oven at a bakery in Himberg, and had to be removed weekly using hot concentrated citric acid solution. An electromagnetic water treatment system (type Kalk MAX IT1) was then installed. We inspected the spray jets after 14 days, and found that they were bright metal. It was now no longer necessary to remove the deposit chemically, since the spray jets were operational without interruption. In order to verify the effect, we asked the (very reluctant) baker to switch off the water treatment unit for a short time. After a week, no new deposits were jet visible, but were so after two weeks. After the Kalk MAX IT1 was restarted, they disappeared again by themselves within two days, and never returned since. The operating parameters and the composition of the water (22 ° dH as per analysis by the water company) remained unchanged during the entire inspection of the system. The system was regularly inspected over a period of three months. No new deposits have formed on the jets. The system will continue to be controlled for at least 9 months, and any changes will be recorded. 4. Subject hot water bath 4.1. Task: Is any change in the formation of boiler scale inside a water bath (serves to generate water steam in the TGM chemistry laboratory) to be observed as a result of the electromagnetic treatment of the input water ? 4.2. Scope of observation A Kalk MAX IT1 electromagnetic treatment device was installed on the water pipe that continuously supplies fresh water to the laboratory water bath in operation in the laboratory for approx. 30 hours a week. As a result of the many years of operation, a generally uniform, roughly 1 mm thick deposit had formed on the heating rod and the walls. In the course of the observations, hitherto over 10 weeks, an observable change occurred at the area of the entry of the water, where there is a continuous exchange of water, with the result that this area is decisive for the observation. In a water bath operated in parallel but without water treatment system, the boiler scale formation continued as before at the area of water entry. 4.3. Result: As a result of the installation of a Kalk MAX IT1 electromagnetic water treatment system, observable changes took place with respect to deposits in the water entry area. All deposits dissolved, and to date no new ones have formed. |
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