Environmental Compatibility of the
RINGtech®-Construction System
The tyre is a conventional commodity, whose environmental compatibility has been investigated not only in terms of proper use, but also in connection with diverse recycling options. In this regard, we have carried out research throughout the world and have acquired extensive data material, which has recently been evaluated by an expert within the framework of a literature-based study. Results are available from the following studies:
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Elution studies (short and long-term analyses) |
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Eco-toxicological studies (acute and chronic) |
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Studies regarding the long-term stability of tyres |
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Biocoenosis studies |
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Bioaccumulation studies |
Depending on the relevant boundary conditions, the results of these studies differ. It is, however, certain that no damage due to scrap tyres was determined in open-air studies on aquatic biocoenoses. Quite the opposite: In the USA, the use of scrap tyres in bodies of water is actually recommended in order to improve the biocoenotic situation. In addition, no substances which may have accumulated from scrap tyres have been detected in biota up to present. The long-term durability of tyres in salt water has been verified via the recovery of a ship loaded with tyres, which has been resting on the sea bed off the Scottish coast for 40 years.
In order to make absolutely certain that RINGtech® products do not pose any potential danger to the environment, we commissioned a further expert report. This involved the documentation of possible effects on the physical-chemical and ecological condition of bodies of water. The aim was to obtain a realistic and comprehensive profile, specifically with regard to the widespread and long-term use of RINGtech® products in Federal waterways. The study was carried out by a recognised auditing institution, The Ruhr Area Hygiene Institute, whereby the study programme was coordinated in advance with numerous experts and the Federal Institute of Water Studies (BfG).
The expert report is now available, and confirms the following:
On transposition of the laboratory results to the real installation conditions, with leaching concentrations which are lower by several powers of ten, and the high water exchange rates found in bodies of water, RINGtech® products pose no potential risk to the environment.
The use of RINGtech® products has accordingly been recommended by the Hygiene Institute and approved by the BfG.
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