Patents for C02F 7 - Aeration of stretches of water (3,263)
04/2005
04/20/2005CN2693759Y Self-cleaning microporous aerator
04/20/2005CN2693758Y Traveling debubbling device for pool surface
04/20/2005CN2693757Y Rotating debubbling device for pool surface
04/13/2005CN2692135Y Aeration machine rotor device
04/13/2005CN1196653C Water cleaner for enclosed water area
04/06/2005CN2690387Y Improved aeration rotary disc and vertical flow aeration automatic aerator
04/06/2005CN2690386Y Forced push flow type areobic reactor
04/06/2005CN2690385Y Air inlet device of aerator
04/06/2005CN2690384Y Air and water guide flow device for aerator
04/06/2005CN2689686Y Pure water circulation automatic aerator
04/02/2005CA2443267A1 Spinning disc aerator
03/2005
03/30/2005CN2688693Y Floating sewage purifying cabin
03/30/2005CN2688691Y High-efficient cellular aerating head
03/30/2005CN2688690Y Water-wheel high-efficient aerator
03/30/2005CN1194913C Wind power aeration and air compression apparatus for sewage purifying treatment
03/30/2005CN1194906C Method for cleaning water at water inlet of water works
03/24/2005WO2004101447A8 A method of induced froth (foam) formation process and natural purification
03/24/2005US20050061721 Water circulation systems for ponds, lakes, and other bodies of water
03/23/2005CN2687114Y Connection sealing element for aerator
03/23/2005CN1597573A Submersible pushing flow aeration machine
03/16/2005CN1594124A Diving stirring type oxygen-rich magnetizing and oxygenating machine and oxygen-rich magnetizing and oxygenating method
03/15/2005CA2481746A1 Method and apparatus for aerating a surface layer in a stratified liquid body
02/2005
02/16/2005CN2679145Y Disk-shape aerator
02/10/2005WO2004060811A3 Process for treating a body of water
02/02/2005CN2674853Y Connecting structure of wheel body and blade of water raising wheel of oxygen supply machine
01/2005
01/26/2005EP0959046B1 Apparatus for purification of water area
01/26/2005CN2673857Y Artificial flowing type aeration bio-chemical equipment
01/26/2005CN1569691A Jet Aerating Reactor
01/19/2005CN2672054Y Improved diaphragm porous aerator
01/19/2005CN2672053Y Waste water processing aerator of novel liquid resistant structure
01/19/2005CN1565995A Wind powered aerating apparatus
01/12/2005EP1494973A1 Method for treating bodies of water or the sediments thereof
01/12/2005CN2669594Y Oxygen supplier
01/12/2005CN2669592Y Impeller of oxygen supplier with multiple water sprays
01/12/2005CN2669591Y Tracting apparatus of aerator
01/12/2005CN1562804A Facility for guiding airflow and water flow in aerator
01/06/2005WO2004101447B1 A method of induced froth (foam) formation process and natural purification
01/05/2005CN2668624Y Sewage treatment apparatus
01/05/2005CN2668623Y Hole-type rubber film aerator
01/05/2005CN1183040C Method and pump for impelling water in waters
01/04/2005CA2372331C System and method for removing pollutants from water
12/2004
12/29/2004CN2666898Y Aeration conduit skeleton
12/29/2004CN1182044C Purifying apparatus for water area
12/15/2004CN1554601A Multifunction water pumping aerator
12/08/2004CN1552641A System and method for treating runway pollution by aquatic floating plant
12/01/2004CN2659885Y Segamental suspension chain mobile aerator
12/01/2004CN2659882Y High efficiency jet aerator
12/01/2004CN2659133Y Mixed gas appts. of saturated dissolved oxygen
11/2004
11/30/2004US6824124 Aerator and mixer
11/25/2004WO2004101447A1 A method of induced froth (foam) formation process and natural purification
11/25/2004DE10217373B4 Verfahren zur Behandlung von Gewässersedimenten A method of treating water sediments
11/25/2004CA2525630A1 A method of induced froth (foam) formation process and natural purification
11/23/2004US6821426 Removing biodegradable materials; higher throughput while employing bioreactor containing biosuspended microorganisms and submerged eductor
11/18/2004US20040226892 forming depression in surface; migration of product ; separation wells; extraction
11/17/2004EP1476400A1 Microbubbles of oxygen
11/17/2004CN2656669Y Water body aeration special pusher-type fan
11/15/2004CA2428677A1 A method of induced froth (foam) formation process and natural purification
11/10/2004CN2654599Y Micropore aerator having check function
11/10/2004CN2654596Y Aeration rotary tray
11/10/2004CN1174927C Energy-saving oxygenation system for sewage treatment
11/09/2004US6814344 Method and apparatus for circulating fluids in a body of liquid
11/03/2004CN2652924Y Power flow dispatching aerator
10/2004
10/28/2004WO2004071963A3 Treatment system and method for remediating a body of water
10/14/2004DE202004008003U1 Apparatus for circulating water in lakes to improve aeration comprises pipe mounted under raft, water flowing up pipe and out through its top, which is below surface
10/13/2004CN2648143Y Jet-flow-Roots aerator
10/12/2004US6802978 Process for environmental recovery in urban regions
10/07/2004WO2004061242A3 Water circulation systems for ponds, lakes, and other bodies of water
10/06/2004CN2646142Y Sewage purification installation
10/06/2004CN2646135Y Tubular aerator or filter
10/06/2004CN2646119Y Lifting device for microporous aerator
09/2004
09/30/2004WO2004082816A1 Method for regenerating water with a low-oxygen atmosphere
09/30/2004DE10312827A1 Verfahren zur Regenerierung von Wasser mit einer sauerstoffarmen Atmosphäre A process for the regeneration of water with a low oxygen atmosphere
09/29/2004CN2644423Y Spontaneous imbibition type deepwater jet aeration machine
09/29/2004CN2644422Y Spontaneous imbibition type deepwater jet aeration stirring dual-purpose machine
09/29/2004CN1532153A Matevial for producing water aerating pipe and method for producing aerating pipe thereof
09/22/2004CN2642772Y Wind power aeration machine
09/22/2004CN1167635C Automatic hydraulic inflating stirrer and method of utilizing it in purifying water
09/07/2004US6787045 Air stripping volatile compounds from water or other solutes by distributing gas through branched pipes; ponds, rivers, lakes, sewage or effluent treatment lagoons or beds; flow control irrespective of pressure drop
09/01/2004CN2637769Y Water body aeration special pusher-type fan
08/2004
08/26/2004WO2004071963A2 Treatment system and method for remediating a body of water
08/25/2004CN1163423C Mixing and oxygen-enriching equipment for treating sewage
08/19/2004DE202004004084U1 Small-scale waste water aeration assembly has vertical sidewall with stainless steel pipe and vertical rail guide for variable-depth pump
08/18/2004CN2633879Y Water gas atomizing oxygen enriching device
08/18/2004CN1162332C Purifying method and purification system for lakes and marshes
08/12/2004US20040154990 Treatment system and method for remediating a body of water
08/11/2004CN2632079Y Aeration apparatus in water body
08/11/2004CN2632076Y Jetting aeration distributor
08/11/2004CN2632074Y Waste water biological method treater
08/05/2004WO2004065312A1 Method and device for increasing oxygen content of hypolimnion and for removing harmful gases in hypolimnion
07/2004
07/28/2004CN1515510A Rotary disk aerator device mounted on horizontal shaft
07/22/2004WO2004061242A2 Water circulation systems for ponds, lakes, and other bodies of water
07/22/2004WO2004060811A2 Process for treating a body of water
07/22/2004DE202004008324U1 Aeration apparatus for raising oxygen availability in bodies of water entrains air by pumping water through a housing having an inclined grating
07/22/2004CA2723331A1 Water circulation systems for ponds, lakes, and other bodies of water
07/21/2004CN2626991Y Rotary cutting aerator
07/15/2004DE10259915A1 Filterelement für eine Klärvorrichtung zur biologischen Reinigung von Wasser Filter element for a clarifier for biological treatment of water
07/08/2004US20040130044 Floating paddlewheel aerator
06/2004
06/30/2004CN2622169Y Tubular and variable microporous rubber film type aerator
06/30/2004CN2622168Y Disc-shaped, multiple-arc base and variable micro-porous rubber film aerator
06/24/2004US20040118701 Flow-through oxygenator
1 ... 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33