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Showing 1 to 20 of 149 results

PATENT /PUB No. Country Patent Title Patent Owner Filing Date Issue/Pub Date Status
8043506 US Process and reactor for anaerobic waste water purification Jan 5, 2007 Oct 25, 2011 Granted
7972508 US Rotary disc filter and module for constructing same Sep 30, 2009 Jul 5, 2011 Granted
5858768 US Method for purifying and biodeodorizing gas effluents Jan 6, 1997 Jan 12, 1999 Granted
7317193 US Ultraviolet radiation water disinfecting device Sep 27, 2005 Jan 8, 2008 Granted
9527760 US Energy efficient system and process for treating sludge Mar 9, 2013 Dec 27, 2016 Granted
9359235 US Method and a system for out-competing glycogen-accumulating organisms in a substance Jul 27, 2012 Jun 7, 2016 Granted
7172701 US Water treatment method using an inorganic powder reagent with high specific surface area including a step of recycling said reagent Apr 8, 2005 Feb 6, 2007 Granted
10266422 US Method for continuous thermal hydrolysis with recirculation of recovered steam Jul 29, 2014 Apr 23, 2019 Granted
9890052 US Method for recovering cyanide from a barren solution Sep 19, 2016 Feb 13, 2018 Granted
9376331 US Installation for water treatment by flotation and corresponding water treatment method May 6, 2014 Jun 28, 2016 Granted
9206059 US Packed bed bioreactor for biofouling control of reverse osmosis and nanofiltration membranes Sep 4, 2009 Dec 8, 2015 Granted
8920644 US Water treatment method including powdered activated carbon recycling Sep 11, 2009 Dec 30, 2014 Granted
9169142 US Method for treating water within a sequential biological reactor including an in-line measurement of the nitrite concentration inside said reactor Nov 8, 2010 Oct 27, 2015 Granted
9278875 US Process for reducing the sulfate concentration in a wastewater stream by employing regenerated gibbsite Nov 22, 2013 Mar 8, 2016 Granted
8202426 US Membrane station waste treatment process Oct 31, 2007 Jun 19, 2012 Granted
8679342 US Method of treating water effluent from purging or cleaning steam generator circuits, and a mobile unit enabling the method to be implemented Apr 15, 2009 Mar 25, 2014 Granted
8778189 US Use of an adsorbent for the removal of liquid, gaseous and/or dissolved constituents from a process stream Mar 5, 2007 Jul 15, 2014 Granted
7473365 US Method and installation for the biological treatment of water using activated sludge and comprising aeration regulation Jul 22, 2004 Jan 6, 2009 Granted
6126829 US Biofilm carrier for water and waste water purification Feb 25, 1997 Oct 3, 2000 Granted
9828262 US Method for removing calcium, barium, magnesium and strontium from frac flowback Mar 14, 2013 Nov 28, 2017 Granted

Showing 1 to 20 of 149 results

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