Apparatus for the aerobic biological treatment of waste waters
EP1338566A1
Device for waste water purification by the activated sludge process
DE19846560A1
Device for the metered transfer of liquid from one basin to another basin and its use
DE19822853A1
Apparatus for removing living creatures from water courses
DE4404976A1
Device for separation of water-born animal life and substances
CN1011487B
Apparatus for increasing putting gaseous medium into liquid medium
DE3245526A1
Plant for the clarification of sewage
DE3140263A1
Clarifier with at least one rotating submersible
DE3140372A1
MECHANICAL-BIOLOGICAL DEVICE FOR WASTEWATER TREATMENT
DE3109184A1
Apparatus for converting foreign substances contained in waste waters or waste water sludges
DE2914948A1
Portable sewage treatment plant - containerised with biological and settling tank sections
DE2914689A1
Biological effluent treatment drum - with self-spacing plastics sheets for biogenic mat growth
DE2911975A1
DEVICE FOR AERATING WASTEWATER OR WASTEWATER SLUDGE
DE2822347A1
DEVICE FOR IMPLEMENTING SUBSTANCES CONTAINED IN SEWAGE AND WASTE WATER SLUDGE
ATA17178A
PLANT FOR BREEDING, FARMING AND Fattening Commercial Fish
DE2727991A1
Biological sewage sludge decomposition - by aeration intake with revolving partly perforated tubes
DE2722013A1
Water scrubber for exhaust gas streams - which contain hazardous materials has rotating tubular paddles inside housing with internal baffles to divide it into compartments
DE2720557A1
Fish feeding stuff - with sludge from biological effluent treatment replacing part or whole
DE2638665A1
Sewage aeration device - using revolving hollow bodies with slots on top when emerged above fluid level
DE2634632A1
Nitrogen cpds. digestion in sewage treatment - in settling tank by periodic stoppage of activated sludge recycling by nitrogen probe
