Method and device for removing dissolved substances in water in water and sewage technology
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Method for controlling the operation of rain basins
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Process and apparatus for recovering magnesium ammonium phosphate in sewage sludge treatment
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Device for the safe opening of a sewage pressure pipeline
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Armatures operating device for use in earth assembly, has rod surrounded by protective pipe, and securely twisted retainer arranged at operating position, where retainer has retaining parts that are separated from each other
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Process for the treatment of rainwater and apparatus for carrying out the method
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Method and device for the in situ purification of contaminated groundwater streams
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Device for the rehabilitation of manholes
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Mobile monitoring and warning device for determining gas-endangered atmospheres
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Device for securing a plugging member
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Method and apparatus for burning scum
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Procedures for avoiding and removing incrustations when pumping and draining liquids
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Getting in and out of shaft works
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Pipe coupling with longitudinal force-fit
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Process for introducing regeneration and treatment liquids into vertical and horizontal wells
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Waste material processing system has waste separator with heavy material output, stirrer, flow separator on cylindrical container wall, conventional waste material reduction system
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Magazine for temporary traffic signs at a road vehicle has magazines for the baseplates with vertical conveyors and horizontal conveyors to take the baseplates and the prepared traffic signs on poles for deployment/recovery
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Device for mixing and generating circulation movements of the wastewater in aeration tanks
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Method and device for cleaning a contaminated aquifer
