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Potable water heater and method of using same
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Activated sludge wastewater treatment system and method
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System and method for efficient and low energy desalination of water
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Method of removing sulfate and/or metal ions from waters or wastewaters
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Method of activation of chemically pure and potable water
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Method and device for destroying cellular structures in waste water and sludge in biological sewage works
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2001-12-11
Method for treating and activating sea water and polluted water into drinking water
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Purification agent for wastewater and sludge water
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Method and device for the treatment of waste water
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Attachment for use with stockpiling barge and method of filtering runoff water therefrom
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Method of utilising precipitates consisting of rain water sediments and sewage sludge
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Clarification of water and wastewater
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Method for treating organic sediments of sewage water
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Improved water tank and method of making same
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Installation and method for purifying waste water or effluents in particular industrial
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Installation for waste water treatment and oilsludge separation
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2002-02-28
Method for recicling of communal waste water and rainwater
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2001-01-22
Device and method for purification of waste water
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2003-05-05
Method of utilising sewage treatment sludge and system therefor
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2004-07-26
Method of measurement of rivers and water regions
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Method and device for the transport of sludge from a sewage water treatment installation to a drainage and composting container
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2000-04-17
Method and device for purification of surface and sewage water
PL345474A1
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2002-07-29
Method of pretreating waste water
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2000-05-17
Treatment sewage or like sludge