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EP1717209A1
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Method and system for treating sludge
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AU1048697A
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Flotation apparatus and process
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SE9101932D0
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Device for sepg. particles from liq. - using small gas bubbles to act as flotation medium for slurry particles
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AU7164287A
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System for biological purification of water
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EP0262174A1
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A method for biologically treating liquid with oxidizing medium, and apparatus for carrying out the method
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US4710032A
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Arrangement for preparing a charge of compositible material for a composting plant
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Arrangement for charging granular or pulp-like material to a container in which the material is processed
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BR8504933A
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Process of treating served water from the manufacture of cellulose pulp
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BR8504934A
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Process for the anaerobic treatment of served waters from forest industries
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Method for producing a compostable mixture of sludge from sewage purification plants
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Apparatus for cleaning water in a biological manner
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Device for blowing a gas into a liquid
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Facility for the cleaning of water by biological means
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Organic material drying process
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Waste water purificn.
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Method for preparation of air-water dispersion and device for this method
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GB1331791A
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Sedimentation system
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Filter unit for fibrous and similar materials
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An installation for the purification of a liquid. (Machine-translation by Google Translate, not legally binding)
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GB1184477A
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Improvements in and relating to Installations for the Purification of Liquids
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