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EP0404170A1
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Installation for the suction of fluids
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Arrangement for introducing gas into liquids
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Process and apparatus for sanitising sludge
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Method and device for preparing radioactively contaminated material for storage
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Biological sewage treatment - by introducing oxygen dissolved in water at bottom of aeration basin
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Activated sludge plant
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Improving utilisation of digestion tank volume - by sludge dewatering before, during or after digestion
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Pulp clarification system - by flotation of contaminants and odorants with biological sludge
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