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Class Information
Number: 210/906
Name: Liquid purification or separation > Materials removed > Phosphorus containing
Description: Collection of disclosures under collection 902 in which the material contains phosphorus.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622047 |
Fluidized bed wastewater treatment |
Nov. 24, 2009 |
| 7604733 |
Apparatus for biological removal of phosphorus and nitrogen using granulated methane-oxidizing bacteria |
Oct. 20, 2009 |
| 7604740 |
Waste activated sludge stripping to remove internal phosphorus |
Oct. 20, 2009 |
| 7588744 |
Method of recovering phosphate for reuse as a fertilizer |
Sep. 15, 2009 |
| 7575685 |
Low oxygen biologically mediated nutrient removal |
Aug. 18, 2009 |
| 7563373 |
Removal of phosphorous from wastewater |
Jul. 21, 2009 |
| 7560031 |
Process for treating pond water |
Jul. 14, 2009 |
| 7544299 |
Biological nutrient removal process and process control for same |
Jun. 9, 2009 |
| 7514002 |
Method for removing phosphorus and method for reutilizing recovered phosphorus |
Apr. 7, 2009 |
| 7510655 |
Process to improve the efficiency of a membrane filter activated sludge system |
Mar. 31, 2009 |
| 7510660 |
Contaminant removal method for a body of water |
Mar. 31, 2009 |
| 7491322 |
Apparatus for removing phosphorus from wastewater |
Feb. 17, 2009 |
| 7491333 |
Industrial waste water treatment process |
Feb. 17, 2009 |
| 7481933 |
Process to improve the efficiency of a membrane filter activated sludge system |
Jan. 27, 2009 |
| 7481939 |
Method for removal of phosphate from bodies of water by topical application of phosphate scavenging compositions with a hand held, hose end sprayer |
Jan. 27, 2009 |
| 7455780 |
Method of treating stormwater runoff and domestic waste with high carbon ash |
Nov. 25, 2008 |
| 7429328 |
Apparatus and methods for control of waste treatment processes |
Sep. 30, 2008 |
| 7429329 |
Hybrid chemical/mechanical dewatering method for sewage treatment plants |
Sep. 30, 2008 |
| 7416669 |
Biological nutrient removal process and process control system for same |
Aug. 26, 2008 |
| 7410589 |
Hog manure treatment method |
Aug. 12, 2008 |
| 7410584 |
Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane |
Aug. 12, 2008 |
| 7407580 |
System and method for treating carbon, nitrogen, phosphorous containing wastewater |
Aug. 5, 2008 |
| 7399416 |
Reactive filtration |
Jul. 15, 2008 |
| 7393452 |
Compositions and methods for the treatment of wastewater and other waste |
Jul. 1, 2008 |
| 7384573 |
Compositions for wastewater treatment |
Jun. 10, 2008 |
| 7329356 |
Flocculating agent for clarifying the water of man-made static water bodies |
Feb. 12, 2008 |
| 7326343 |
Treatment of wastewater containing phosphorous and nitrogen |
Feb. 5, 2008 |
| 7320759 |
Sludge treatment method |
Jan. 22, 2008 |
| 7318896 |
Method and apparatus for utilization of recovered magnesium ammonium phosphate |
Jan. 15, 2008 |
| 7314562 |
Floating wetland structures for use in water remediation |
Jan. 1, 2008 |
| 7314563 |
Membrane coupled activated sludge method and apparatus operating anoxic/anaerobic process alternately for removal of nitrogen and phosphorous |
Jan. 1, 2008 |
| 7311842 |
Lignocellulose-based anion-adsorbing medium (LAM) and process for making and using same for the selective removal of phosphate and arsenic anionic contaminants from aqueous solutions |
Dec. 25, 2007 |
| 7294275 |
Method of removing phosphorus from wastewater |
Nov. 13, 2007 |
| 7288191 |
Sludge treatment apparatus |
Oct. 30, 2007 |
| 7285215 |
Process for improving phosphorus removal in waste water treatment without chemical addition |
Oct. 23, 2007 |
| 7279100 |
Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane |
Oct. 9, 2007 |
| 7261811 |
Liquid-solid circulating fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorus removal |
Aug. 28, 2007 |
| 7258790 |
Controlled eutrophication system and process |
Aug. 21, 2007 |
| 7255794 |
Hydrate-based reduction of fluid inventories and concentration of aqueous and other water-containing products |
Aug. 14, 2007 |
| 7252765 |
Process for improving phosphorous removal in waste water treatment without chemical addition |
Aug. 7, 2007 |
| 7208090 |
Wastewater treatment control |
Apr. 24, 2007 |
| 7201847 |
Wastewater treatment method utilizing white rot and brown rot fungi |
Apr. 10, 2007 |
| 7195712 |
Wastewater treatment apparatus and method for removing nitrogen and phosphorus |
Mar. 27, 2007 |
| 7182872 |
Struvite crystallization |
Feb. 27, 2007 |
| 7172699 |
Energy efficient wastewater treatment for nitrogen and phosphorus removal |
Feb. 6, 2007 |
| 7166227 |
Method of treating digested sludge |
Jan. 23, 2007 |
| 7156998 |
Phased activated sludge system |
Jan. 2, 2007 |
| 7147778 |
Method and system for nitrifying and denitrifying wastewater |
Dec. 12, 2006 |
| 7135116 |
Process for recovery of nutrients from wastewater |
Nov. 14, 2006 |
| 7108792 |
Process for cleaning wash water |
Sep. 19, 2006 |
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