US5221470B1
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1997-02-25
Apparatus for treating waste water
EP0510328A3
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1992-12-02
Apparatus for treating activated sludge
GB9220428D0
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1992-11-11
Sludge treating process and apparatus
GB9211407D0
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1992-07-15
Method and apparatus for treating water and/or wastewater
GB2275921B
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1996-09-25
Sewage treatment apparatus
GB2253375B
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1994-11-16
Sewage treatment apparatus
PL295363A1
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1994-01-24
Apparatus for biologically treating waste waters in particular those from sugar mils
GB9503947D0
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1995-04-19
Waste treatment apparatus
PL276822A1
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1989-08-21
Apparatus for mechanically and biologically treating waste waters
PL296568A1
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1994-05-16
Apparatus for biologically treating waste waters
GB9512357D0
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1995-08-16
Waste water treatment apparatus
ZA922954B
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1993-10-25
Methods and apparatus for treatapparatus for treating wastewater
IL108956A0
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1994-06-24
Method and apparatus for purifying waste water
GB9206718D0
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1992-05-13
Apparatus for treating or processing waste
GB9309879D0
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1993-06-23
Wastewater treatment process
GB2270520B
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1996-02-14
Waste matter treatment apparatus
GB9200894D0
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1992-03-11
Effluent treatment apparatus
EG19437A
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1995-02-28
Method and apparatus for treating water and/or wastewater.
AP9200393A0
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1992-07-31
Method and apparatus for treating water and/or wastewater
GB9202540D0
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1992-03-25
Sewage treatment apparatus
ZA923691B
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1993-03-31
Method and apparatus for treating water and/or wastewater
HU9302618D0
(en )
1994-03-28
Auto-tracking apparatus for biological treatment of waste waters
PL296691A1
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1994-05-30
Biological sewage treatment method and apparatus
PL288872A1
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1992-08-24
Method of and tank for biologically treating waste waters
AU1471197A
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1997-04-17
Method and apparatus for treating water and/or wastewater