| Patents for C02F - Treatment of water, waste water, sewage, or sludge (726) |
|---|
| 10/14/2014 | US8859036 Method of making metal-treated particles of specific surface area for remediation |
| 05/06/2014 | US8714283 Foamer/sulfur scavenger composition and methods for making and using same |
| 12/17/2013 | CA2535709C Metal-treated particles for remediation |
| 10/15/2013 | CA2533772C Treatment of environmental contaminants |
| 04/09/2013 | US8414748 Apparatus and process for mediated electrochemical oxidation of materials |
| 03/20/2013 | CN1972875B Continuous closed-circuit desalination apparatus without containers |
| 03/19/2013 | CA2573035C Method for removing lignin from water |
| 01/08/2013 | CA2572410C Continuous closed-circuit desalination apparatus without containers |
| 10/31/2012 | CN102757116A Improved control device |
| 10/23/2012 | CA2577086C Method, apparatus and system for removal of contaminants from water |
| 10/02/2012 | CA2512783C Process for treating a body of water |
| 05/23/2012 | EP1636140B1 Small-scale treatment unit for waste water |
| 04/12/2012 | US20120088697 Foamer/sulfur scavenger composition and methods for making and using same |
| 02/07/2012 | CA2497531C Controlling wastewater treatment processes |
| 11/23/2011 | CN101014241B Novel solid compositions for disinfecting water |
| 11/08/2011 | US8052846 Liquid cleaning device |
| 09/14/2011 | CN101023215B Method for removing lignin from water |
| 07/13/2011 | CN101137582B Liquid cleaning device |
| 07/05/2011 | US7971659 Foamer/sulfur scavenger composition and methods for making and using same |
| 05/25/2011 | CN101189053B Water purification apparatus |
| 05/18/2011 | EP1784360B1 Liquid cleaning device |
| 11/03/2010 | EP1786974B1 Device and method for production of cellulose-based products |
| 10/05/2010 | US7807057 Optimizing the relationship between the hydraulic loading, zeolite mesh size, distribution of zeolite mesh sizes and zeolite bed volume expansion; providing a highly effective sorption column that resists clogging while increases capacity |
| 09/14/2010 | US7794604 Method for removing lignin from water |
| 08/03/2010 | CA2506278C A foamer/sulfur scavenger composition and methods for making and using same |
| 07/28/2010 | EP1235752B1 Process for recovering organic hydroxides from waste solutions |
| 06/15/2010 | US7736504 Crossflow filtration system with quick dry change elements |
| 05/18/2010 | US7718066 Method and apparatus for controlling wastewater treatment processes |
| 05/18/2010 | CA2540556C Two-stage sewage grinder pump |
| 05/11/2010 | US7713414 Method for removal of contaminants from water |
| 04/13/2010 | US7695614 Continuous closed-circuit desalination apparatus without containers |
| 03/11/2010 | US20100059447 Products and Methods for Removing Substances from Aqueous Solution |
| 03/02/2010 | US7670495 Flow-through oxygenator |
| 02/16/2010 | US7662276 Water purifier |
| 02/02/2010 | US7655151 radial flow filters and media management systems, in which filter and coacting media can be removed from the system and regenerated; multiport valve maintains separate isolated ports to prevent contamination of the fluids carried therethrough; for water softening |
| 01/13/2010 | CN100579915C Water purifier |
| 01/05/2010 | US7641971 Metal-treated particles for remediation |
| 12/24/2009 | US20090314719 Metal-Treated Particles for Remediation |
| 12/24/2009 | US20090314699 Water Purification Apparatus |
| 12/23/2009 | CN100572293C Continuous closed-circuit desalination apparatus with single container |
| 12/08/2009 | US7628921 desalination of sea water,on the basis of reverse osmosis using a closed circuit, wherein feed is recycled through parallel desalination modules by a circulation driving means and counter pressure is created by a pressurizing means which also replaces the released permeate by fresh feed supply |
| 11/12/2009 | US20090277598 Nut Cracker |
| 09/17/2009 | US20090230055 continuous, automatic aeration; energy efficiency |
| 09/16/2009 | EP1539994B1 Method of monitoring biofouling in membrane separation systems |
| 09/08/2009 | CA2504319C Biological wastewater purification device |
| 08/26/2009 | EP1778008A4 Novel solid compositions for disinfecting water |
| 08/05/2009 | EP1680363A4 Continuous closed-circuit desalination apparatus with single container |
| 08/05/2009 | CN100522838C Controlling wastewater treatment processes |
| 07/28/2009 | US7566386 System for electrochemically processing a workpiece |
| 07/22/2009 | EP1689529A4 Two stage sewage grinder pump |
| 07/21/2009 | US7563375 Feeding concentrated saline solution to feed side of reverse osmosis(RO) membrane under high gauge pressure of normal RO separation process, feeding dilute saline solution to permeate side of RO membrane under higher pressure, whereby solvent is sucked from permeate side to feed side, separating foulants |
| 05/26/2009 | US7537696 Method and apparatus for treatment of wastewater employing membrane bioreactors |
| 05/26/2009 | CA2388351C A process for dewatering of sludge |
| 04/28/2009 | US7524141 Treatment of environmental contaminants |
| 04/16/2009 | WO2005019111A3 A composition including potassium monopersulfate and a halogen |
| 03/31/2009 | CA2426152C Process for desalination of seawater |
| 01/28/2009 | CN100455192C Method for inhibiting algae |
| 01/27/2009 | US7481935 Waste water treatment process |
| 11/27/2008 | US20080292404 Treatment of Environmental Contaminants |
| 11/19/2008 | EP1677899A4 A continuous production membrane water treatment plant and method for operating same |
| 11/19/2008 | EP1651326A4 Salt chlorine generator |
| 11/11/2008 | US7449113 Controlling wastewater treatment processes |
| 10/14/2008 | US7434538 Water agitation system for water retention structure |
| 10/08/2008 | CN100423807C Nanofiber filter media |
| 10/07/2008 | US7431850 One of 1) flocculation sedimentation, flotation, or filtration; 2) electrolytic oxidation reduction; and 3) simultaneous treatment with microwave and an inorganic material followed by purification by a complementary supercritical treatment or subcritical treatment |
| 10/02/2008 | US20080237109 Crossflow filtration system with quick dry change elements |
| 09/09/2008 | CA2492413C Septic tank drain field pipe manifold system and method of use |
| 08/28/2008 | US20080202995 Flow-through oxygenator |
| 07/31/2008 | US20080179259 Flow-through oxygenator |
| 07/17/2008 | US20080169181 Liquid Cleaning Device |
| 07/09/2008 | EP1631370A4 Crossflow filtration system with quick dry change elements |
| 07/08/2008 | US7396441 Flow-through oxygenator |
| 06/26/2008 | US20080149568 adding calcium chloride and polymeric aluminium hydroxide salt to the solution; precipitation; basic waste water from the bleaching of chemical pulp; waste water from the bleaching of straw; aluminium hydroxide chloride |
| 06/18/2008 | EP1774088B1 Method for removing lignin from water |
| 05/28/2008 | CN101189053A Water purification apparatus |
| 05/15/2008 | US20080110832 Optimizing the relationship between the hydraulic loading, zeolite mesh size, distribution of zeolite mesh sizes and zeolite bed volume expansion; providing a highly effective sorption column that resists clogging while increases capacity |
| 04/15/2008 | US7357341 Two stage sewage grinder pump |
| 04/09/2008 | CN100379877C Method of monitoring biofouling in membrane separation systems |
| 03/26/2008 | CN100376491C Small-scale treatment unit for waste water |
| 03/05/2008 | EP1893315A1 Water purification apparatus |
| 03/05/2008 | CN101137582A Liquid cleaning device |
| 03/04/2008 | US7337615 Thermoelectric, high-efficiency, water generating device |
| 02/28/2008 | US20080049547 Water agitation system for water retention structure |
| 02/28/2008 | US20080047497 Water agitation system for water retention structure |
| 02/26/2008 | US7335304 injecting ozone gas into an aeration tank which contains the effluent, then contacting with microorganisms; water treatment |
| 02/21/2008 | US20080041784 aerobic waste processing; anaerobically converting nitrate and nitrite to nitrogen gas, reducing the phosphorus content; water purification in a leaching and septic systems; usng a carbon source and microbes |
| 02/20/2008 | CN100369831C Biological activity reactor system and wastewater treating method |
| 02/14/2008 | US20080038303 Novel Solid Compositions for Disinfected Water |
| 02/05/2008 | US7326347 Contacting the aqueous medium with the zeolite material at the target hydraulic loading wherein the contacting removes the contaminate; highly effective sorption column that resists clogging while increases capacity |
| 01/31/2008 | US20080023410 Continuous Closed-Circuit Desalination Apparatus Without Containers |
| 01/10/2008 | US20080006571 Method and apparatus for treatment of wastewater employing membrane bioreactors |
| 01/02/2008 | CN101098829A Water purifier |
| 11/22/2007 | WO2006004502A3 Liquid cleaning device |
| 11/08/2007 | US20070256972 One of 1) flocculation sedimentation, flotation, or filtration; 2) electrolytic oxidation reduction; and 3) simultaneous treatment with microwave and an inorganic material followed by purification by a complementary supercritical treatment or subcritical treatment |
| 11/08/2007 | US20070256962 Water Purifier |
| 11/07/2007 | EP1851176A1 Method for treating biomass |
| 10/31/2007 | EP1848665A1 Products and methods for removing substances from aqueous solution |
| 10/30/2007 | US7288190 Method, apparatus and system for removal of contaminants from water |
| 10/25/2007 | US20070246425 Feeding concentrated saline solution to feed side of reverse osmosis(RO) membrane under high gauge pressure of normal RO separation process, feeding dilute saline solution to permeate side of RO membrane under higher pressure, whereby solvent is sucked from permeate side to feed side, separating foulants |
| 10/23/2007 | US7285216 Maintaining, in the sulphide-containing water, a redox potential gradient across an interface zone between oxidized surface water and substantially non-oxidized water below the interface zone; biologically oxidizing, in the interface zone, sulphides in the water to sulphur |