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AU8933791A
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Process and device for dissolving a gas in a liquid
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AU7764691A
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Process for eliminating nitrates and phosphates in the biological purification of waste water
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EP0333774A1
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Conditioning and hygienic treatment of sewage sludge and the like
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CH676359A5
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Thermophilic-aerobic treatment of sludges - has two stage sludge preheat system to reduce charge times
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EP0229587A2
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Process for desulphurizing hydrogen sulphide-containing gas and installation for carrying out said process
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EP0217739A2
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Process and apparatus for conditioning and disinfecting sewage sludge
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EP0179234A2
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Process and apparatus for the treatment of sewage sludge
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CH663203A5
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Plant for the conditioning and sanitation of sewage sludge
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EP0100953A1
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Fixed bed reactor for the treatment, especially the anaerobic treatment of sewage sludge or liquids heavily polluted with organic compounds
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BR8206869A
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Process for the production of heat by biological, and, apparatus for execution of the process
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CH657604A5
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Process for the anaerobic treatment of sewage sludge and apparatus for carrying out the process
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CH664822A5
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Method for biological heat generation and device for implementing the method.
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