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Class Information
Number: 210/150
Name: Liquid purification or separation > With gas-liquid surface contact means
Description: Apparatus consisting of solid contact means to increase the surface area of a liquid in a gas-liquid contact device whereby the contact is enhanced.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7442307 |
Method and apparatus for the biological activated sludge treatment of wastewater |
Oct. 28, 2008 |
| 7431832 |
Systems for reducing water contamination |
Oct. 7, 2008 |
| 7431847 |
Method and apparatus for purifying water by photo-chemical oxidation |
Oct. 7, 2008 |
| 7429320 |
Wastewater treatment system |
Sep. 30, 2008 |
| 7425268 |
Device and related methods for purifying a liquid |
Sep. 16, 2008 |
| 7425261 |
Stormwater bioretention filtration system with overflow/bypass capability |
Sep. 16, 2008 |
| 7407584 |
Regulating air velocity continuously injected into biological water treatment reactor |
Aug. 5, 2008 |
| 7402241 |
Water purification device |
Jul. 22, 2008 |
| 7396453 |
Hydraulically integrated solids/liquid separation system for wastewater treatment |
Jul. 8, 2008 |
| 7390400 |
Denitrification reactor with a fixed culture |
Jun. 24, 2008 |
| 7378021 |
Tidal vertical flow wastewater treatment system and method |
May. 27, 2008 |
| 7374670 |
High aspect ratio wastewater system |
May. 20, 2008 |
| 7374683 |
Biofilter and method for filtering a waste liquid |
May. 20, 2008 |
| 7361268 |
Waste treatment systems |
Apr. 22, 2008 |
| 7354516 |
Oil digesting microbe-plastic foam system |
Apr. 8, 2008 |
| 7347940 |
Nitrogen removal system and method for wastewater treatment lagoons |
Mar. 25, 2008 |
| 7338597 |
Apparatus for water treatment |
Mar. 4, 2008 |
| 7335305 |
Sequential batch reactor and wastewater treatment process |
Feb. 26, 2008 |
| 7332078 |
Apparatus for recovering energy from turbulence created within an aerobic biological reactor |
Feb. 19, 2008 |
| 7329351 |
Process and apparatus for increasing biological activity in waste treatment in bodies of water |
Feb. 12, 2008 |
| 7329350 |
Filtration system |
Feb. 12, 2008 |
| 7329341 |
Wastewater treatment device |
Feb. 12, 2008 |
| 7329340 |
Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment systems |
Feb. 12, 2008 |
| 7326391 |
Process for recovery and recycle of ammonia from a vapor stream |
Feb. 5, 2008 |
| 7309432 |
System and method for eliminating sludge via ozonation |
Dec. 18, 2007 |
| 7309434 |
Apparatus and method for wastewater treatment |
Dec. 18, 2007 |
| 7303668 |
Filtering device |
Dec. 4, 2007 |
| 7300569 |
Water treatment system |
Nov. 27, 2007 |
| 7297275 |
Biomembrane filtration apparatus and method |
Nov. 20, 2007 |
| 7294278 |
Method for oxygenating wastewater |
Nov. 13, 2007 |
| 7288187 |
Organic waste management system |
Oct. 30, 2007 |
| 7288192 |
Wastewater treatment station in shipping container |
Oct. 30, 2007 |
| 7282141 |
Mixer and process controller for use in wastewater treatment processes |
Oct. 16, 2007 |
| 7279101 |
Anaerobic biological wastewater treatment system and process |
Oct. 9, 2007 |
| 7258792 |
Treatment of contaminated activated charcoal |
Aug. 21, 2007 |
| 7258793 |
Method and apparatus for treating organic liquid waste |
Aug. 21, 2007 |
| 7252766 |
Wastewater treatment system and method |
Aug. 7, 2007 |
| 7244354 |
Ozone irrigator |
Jul. 17, 2007 |
| 7244355 |
Organic and animal waste effluent treatment |
Jul. 17, 2007 |
| 7238286 |
Combination trickling filter and overflow tank for secondary treatment of wastewater, and associated method of managing wastewater overflow |
Jul. 3, 2007 |
| 7223343 |
Growth media wastewater treatment reactor |
May. 29, 2007 |
| 7214317 |
Tidal vertical flow wastewater treatment system and method |
May. 8, 2007 |
| 7208084 |
Modular aquarium filter |
Apr. 24, 2007 |
| 7204967 |
Waste water process with scrubber |
Apr. 17, 2007 |
| 7189323 |
Method for biological purification of water using a carrier material |
Mar. 13, 2007 |
| 7186332 |
Orbital wastewater treatment system with combined surface aerator and submerged impeller |
Mar. 6, 2007 |
| 7182871 |
Wastewater treatment with alkanes |
Feb. 27, 2007 |
| 7179370 |
Energy-efficient biological treatment system with filtration membrane |
Feb. 20, 2007 |
| 7169295 |
Supported biofilm apparatus and process |
Jan. 30, 2007 |
| 7169296 |
Collapsible digester |
Jan. 30, 2007 |
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