EP0777520A4
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1998-05-06
Zero waste effluent water desalination system
EP0958036A4
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2001-10-31
Membrane system for treating sanitary wastewater
EP0885175A4
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1999-10-27
System for removing nutrients from wastewater
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2001-01-02
Septic tank filtering system
PL343548A1
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2001-08-27
Filter for removing solids from liquids
GB9723347D0
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1998-01-07
Treatment system for removing phosphorus from sewage water
GB9908506D0
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1999-06-09
Sewerage filtration tank
HU9600351D0
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1996-04-29
Settling chamber for multistage-biological sewage watertreatement
PL325480A1
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1998-09-14
Solid particles settling tank for sewage draining systems
AU7276698A
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1998-12-08
Method for reducing the level of hydrogen sulfide in wastewater systems
AU5879294A
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1994-08-15
Basin for eliminating floating particles from sewage water
ZA989941B
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1999-05-04
Process for the denitrification of waste water
PL352879A1
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2003-09-22
Arrangement for treating solids settled on the bottom of an electrolytic tank
EP0718019A3
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1997-05-28
Tank for the mechanical preclarification of waste water
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1998-04-30
Installation for petrol containing sewage purification
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2000-05-03
Solid-liquid filtering method and system for sewage waste water and the like
AU6839698A
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1998-09-29
Ascending filtration device for waste water
AU9620798A
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1999-03-22
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1998-07-03
The excrements filtering device for water tank
GB2337770B
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2002-09-11
Liquid effluent disposal system
AU2518499A
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1999-08-02
Method for treating sewage sludge
HUP9700832A3
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1998-07-28
Settling tank
GB0018742D0
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2000-09-20
Solid liquid separating medium for sewage waste water etc
AU7192296A
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1997-05-29
Septic tank installation improvements
TW375109U
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1999-11-21
Structure for the sewage purifier