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Class Information
Number: 210/724
Name: Liquid purification or separation > Processes > Making an insoluble substance or accreting suspended constituents > Utilizing precipitant, flocculant, or coagulant, each with accelerator or with each other or plural precipitants, flocculants, or coagulants > Regulating ph
Description: Process in which a pH adjusting substance is added in addition to the precipitant.










Sub-classes under this class:

Class Number Class Name Patents
210/725 Utilizing organic precipitant 345


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8702992 Continuous flow reactor and method of using the same for treating nitrogen and phosphorus-containing wastewater Apr. 22, 2014
8691096 Oil filters containing strong base and methods of their use Apr. 8, 2014
8685253 Processes for removing color during production of runway deicer Apr. 1, 2014
8679352 Method and system for processing of aquatic species Mar. 25, 2014
8617400 Water treatment process and plant using ballasted flocculation and settling Dec. 31, 2013
8617402 Method of raising the pH of acidic bodies of water Dec. 31, 2013
8597521 Selective removal of silica from silica containing brines Dec. 3, 2013
8597517 Process of recovery of exhausted ionic liquids used in the extractive desulfurization of naphthas Dec. 3, 2013
8580122 Hybrid chemical/mechanical method and apparatus for inactivating and removing pharmaceuticals and other contaminants from water Nov. 12, 2013
8540882 Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance Sep. 24, 2013
8512572 Method of precipitating uranium from an aqueous solution and/or sediment Aug. 20, 2013
8506817 Enhanced high water recovery membrane process Aug. 13, 2013
8491788 Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance Jul. 23, 2013
8491794 Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance Jul. 23, 2013
8460555 Centralized sump oil and acid oil treatment process and system Jun. 11, 2013
8454835 Remediation system for transition metal ions and method for same Jun. 4, 2013
8377312 Enrichment of ores from mine tailings Feb. 19, 2013
8377311 Selective materials separation using modified magnetic particles Feb. 19, 2013
8377313 Magnetic hydrophobic agglomerates Feb. 19, 2013
8372290 Magnetic separation of nonferrous metal ores by means of multi-stage conditioning Feb. 12, 2013
8329039 Magnetic separation of substances on the basis of the different surface charges thereof Dec. 11, 2012
8329040 Method for removing ammonia nitrogen in coking wastewater Dec. 11, 2012
8323510 Ultrasound assisted heavy metal recovery Dec. 4, 2012
8318025 Processing rich ores using magnetic particles Nov. 27, 2012
8313654 Methods for flocculating suspensions using biobased renewable flocculants Nov. 20, 2012
8313653 Method of removing iron and calcium from a geothermal brine Nov. 20, 2012
8287619 Process and equipment for the production of direct reduced iron and/or pig iron from iron ores having a high-phosphorus content Oct. 16, 2012
8282835 Removal of selenium from refinery wastewater Oct. 9, 2012
8277648 Remediation system for transition metal ions and method for same Oct. 2, 2012
8273249 Method integrating electrochemical oxidation and flocculation processes for pre-treatment of coking wastewater Sep. 25, 2012
8262914 Wastewater treatment system Sep. 11, 2012
8241503 Enhanced high water recovery membrane process Aug. 14, 2012
8236178 Reverse osmosis water recover method Aug. 7, 2012
8236181 Purification of water from cooling towers and other heat exchange systems Aug. 7, 2012
8192626 Wastewater chemical/biological treatment method for open water discharge Jun. 5, 2012
8182697 Method and apparatus for treating selenium-containing wastewater May. 22, 2012
8153011 Method for separating off coloring components from aqueous plant extracts Apr. 10, 2012
8147782 Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture Apr. 3, 2012
8119011 Optimized alumina coagulants for water treatment Feb. 21, 2012
8101088 Method for depolluting aqueous media containing organic pollutants Jan. 24, 2012
8101085 Process for treating animal husbandry effluent slurry by pre-treatment and electroflotation Jan. 24, 2012
8097168 Wastewater photo biomass/algae treatment method Jan. 17, 2012
8062530 Method for treatment of high pH/silica brines Nov. 22, 2011
8034158 Method of manufacturing Fe and Ni containing material, ferronickel mass using the Fe and Ni containing material and method for manufacturing the ferronickel mass Oct. 11, 2011
8012358 Mobile systems and methods of sufficiently treating water so that the treated water may be utilized in well-treatment operations Sep. 6, 2011
7998439 Method for separating and recycling uranium and fluorine form solution Aug. 16, 2011
7981295 Enhanced high water recovery membrane process Jul. 19, 2011
7967990 Hybrid chemical/mechanical dewatering method for inactivating and removing pharmaceuticals and other contaminants from wastewater Jun. 28, 2011
7967989 Groundwater recharging wastewater disposal method Jun. 28, 2011
7943739 Methods for separating casein from soluble proteins in a composition May. 17, 2011

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