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Class Information
Number: 210/919
Name: Liquid purification or separation > Miscellaneous specific techniques > Using combined systems by merging parallel diverse waste systems
Description: Collection of disclosures under collection 918 in which the output of two independent and different water treatment processes coact to effect a further treatment.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8591737 Waste water treatment from a biomass-to-liquid process comprising synthesis gas production and integrated factory facility Nov. 26, 2013
8585892 System and process for removing nitrogen compounds and odors from wastewater and wastewater treatment system Nov. 19, 2013
8075779 Water treatment Dec. 13, 2011
7695621 Method of supporting denitrification Apr. 13, 2010
7442314 Wet oxidation method Oct. 28, 2008
7422680 Animal waste effluent treatment system Sep. 9, 2008
7351343 Copper metal recovery system Apr. 1, 2008
7344650 Process for the working-up of waste waters containing aromatic nitro compounds Mar. 18, 2008
7238283 System for wastewater treatment Jul. 3, 2007
7112281 Underdrain for filtration membrane Sep. 26, 2006
6989099 Underdrain for filtration membrane Jan. 24, 2006
6932909 Method of treating mine drainage Aug. 23, 2005
6893562 Underdrain for filtration membrane May. 17, 2005
6887389 Method and apparatus for recycling sewage sludge utilizing spent water-softener lime May. 3, 2005
6824687 Extraction of phenol from wastewater Nov. 30, 2004
6821445 Rainwater-treating apparatus in combined sewer system and backwashing method therefor Nov. 23, 2004
6589427 Process for treatment of mixture of spent wash from distillery and black liquor from pulp and paper industry Jul. 8, 2003
6572771 Waste water treatment method Jun. 3, 2003
6562236 Sewage treatment system May. 13, 2003
6413417 Waste water treatment apparatus Jul. 2, 2002
6409927 Process for the treatment of polluted metal-mechanic industrial wastewater and urban water Jun. 25, 2002
6299783 Process for cleaning up wastewaters from the hock process Oct. 9, 2001
6277290 Process for recovering silver from photographic solutions Aug. 21, 2001
6270677 Alkaline effluent solution treating process Aug. 7, 2001
6171499 Optimised method for the treatment and energetic upgrading of urban and industrial sludge purifying plants Jan. 9, 2001
6165371 Off-shore sewage treating and handling apparatus and method Dec. 26, 2000
6132600 Filtration and treatment system Oct. 17, 2000
6123856 Dewatering of sludges Sep. 26, 2000
6077444 Method for manufacturing a system for treating water Jun. 20, 2000
6033576 Chemical waste treatment Mar. 7, 2000
5976387 Method for feeding wastes into a boiler Nov. 2, 1999
5961837 Process for treatment of industrial waste Oct. 5, 1999
5702615 Method for the treatment of waste water Dec. 30, 1997
5683587 Process for treating industrial wastes Nov. 4, 1997
5639347 Method of controlling of metals in a bleach plant, using oxidation Jun. 17, 1997
5632885 Hydrogen peroxide removal equipment capable of treating both waste water and waste gas May. 27, 1997
5616251 Methods to prevent and treat acid mine drainage and to remove metals and non-metals from aqueous sources Apr. 1, 1997
5614102 Method for purifying sewage Mar. 25, 1997
5567325 Thermophilic digestion of chitin-containing waste Oct. 22, 1996
5529697 Process for color removal from paper mill wastewaters Jun. 25, 1996
5509999 Treatment of bleach plant effluents Apr. 23, 1996
5478472 Process for treating waste water containing organic and inorganic compounds Dec. 26, 1995
5462668 Use of steam to condensate to dilute brine stream additives Oct. 31, 1995
5316589 Method for controlling street surface pollutants May. 31, 1994
5298170 Effluent neutralization process and chamber Mar. 29, 1994
5290454 Process for removal of suspended solids from pulp and paper mill effluents Mar. 1, 1994
5273661 Method for processing aqueous wastes Dec. 28, 1993
5229009 Effluent precipitation and neutralization chamber Jul. 20, 1993
5192418 Metal recovery method and system for electroplating wastes Mar. 9, 1993
5132022 Effluent precipitation and neutralization chamber Jul. 21, 1992

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