Class / Patent application number | Description | Number of patent applications / Date published |
210728000 | Including organic agent | 28 |
20090095687 | METHOD FOR SEPARATING OFF COLORING COMPONENTS FROM AQUEOUS PLANT EXTRACTS - The invention relates to a method for separating off coloring components from aqueous plant extracts in which magnesium ions (Mg | 04-16-2009 |
20090206040 | SYSTEMS AND METHODS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a tailing solution. | 08-20-2009 |
20090242491 | Method of treating silicon powder-containing drainage water - A method of treating silicon powder-containing drainage water, comprising the steps of: | 10-01-2009 |
20100140181 | REGENERATION OF USED CLEANING SOLUTION - A process is provided for improving the precipitation of calcium and/or magnesium salts in the regeneration of used alkaline cleaning solution. The process includes the steps of providing a spent alkaline or acidic cleaning solution; adding sodium bentonite and sodium carbonate to the spent alkaline or acidic cleaning solution in a mixing zone to provide an interactive solution; adding either an anionic polymeric flocculating agent or a cationic polymeric flocculating agent to interactive solution, thereby precipitating insoluble calcium and magnesium salts as flocs; and subjecting the solution containing such flocs to a filtration process to bring the precipitated solids to a solids contents of >25%. | 06-10-2010 |
20100170856 | IMPROVEMENT SEPARATION OF SOLIDS FROM LIQUIDS BY THE USE OF QUICK INVERTING AND DISPERSING FLOCCULANTS - This invention is directed to methods for quickly inverting and dispersing a flocculant in a digestion process prior to the production of an aqueous slurry to achieve settlement of solids and clarification of the slurry water. In particular, this invention relates to methods for quickly inverting a flocculant-containing emulsion in-line without significantly destabilizing the emulsion. The methods comprise dosing water with at least one water-in-oil emulsion containing at least one of a flocculant polymer and a hydrophilic surfactant and subjecting the water and emulsion to a high shear, turbulent reverse flow, such that the combination of the surfactant and shear synergistically inverts the emulsion, so the flocculant may be directly injected. | 07-08-2010 |
20100314326 | Compositions for Conditioning Sludge - Composition for conditioning sludge, comprising a mineral compound that is lime and an organic compound that is a cationic organic coagulant having a weight average molecular weight less than or equal to 5 million g/mol and greater than or equal to 20,000 g/mol, the said cationic organic coagulant being chosen from the group of linear or branched polymers based on diallyldialkyl ammonium salts. | 12-16-2010 |
20110094971 | Treatment Agent for Aqueous Waste Liquid and Treatment Method for Aqueous Waste Liquid - There are provided a treatment agent and a treatment method for physically solidifying an aqueous waste liquid such as a floor wax peeling polluted water and the like simply and also speedily. On an occasion when treating the aqueous waste liquid physically, the treatment agent added to this aqueous waste liquid includes a polymer water-absorbing agent and a dispersing agent which is mixed with a polymer water-absorbing agent in order to disperse this polymer water-absorbing agent in the aqueous waste liquid. By adding this treatment agent to the aqueous waste liquid, the whole of both the substances is solidified into an aggregate of a crushed sponge-like granular material having a size in a range of averagely 0.4 mm to 10 mm. | 04-28-2011 |
20120103916 | USE OF SILICON-CONTAINING POLYMERS FOR IMPROVED FLOCCULATION OF SOLIDS IN PROCESSES FOR THE PRODUCTION OF ALUMINA FROM BAUXITE - The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers. | 05-03-2012 |
20120118832 | IONIC POLYMERS, METHOD OF MANUFACTURE, AND USES THEREOF - An ionic polymer of formula VI | 05-17-2012 |
20130015143 | NON-DESTRUCTIVE METHOD FOR ALGAE CONTAMINATED WATER TREATMENT AND ALGAE HARVEST OR REMOVALAANM Wang; SijingAACI PudongAACO CNAAGP Wang; Sijing Pudong CNAANM Zhao; QingAACI PudongAACO CNAAGP Zhao; Qing Pudong CNAANM Zhang; GuixiAACI PudongAACO CNAAGP Zhang; Guixi Pudong CN - A method of treating an algal containing aqueous medium comprises adding an effective amount of the treatment composition to the aqueous medium wherein the treatment composition comprises 1) a) a water soluble cationic quaternary ammonium starch or b) a water soluble quaternary ammonium starch/gum blend or c) a water soluble modified tannin and 2) a metal containing inorganic coagulant. In certain aspects of the invention, the so-treated algal containing aqueous medium is filtered such as by microfiltration and/or ultrafiltration to result in potable water. In another aspect of the invention, the algal containing aqueous medium is an agglomerated mass of algae with water dispersed throughout the mass. The method comprises a step of separating the algae from the water, thereby harvesting the algae for further processing such as may ultimately lead to the production of biodiesel fuel. | 01-17-2013 |
20130043193 | Compositions for Conditioning Sludge - Composition for conditioning sludge, comprising a mineral compound that is lime and an organic compound that is a cationic organic coagulant having a weight average molecular weight less than or equal to 5 million g/mol and greater than or equal to 20,000 g/mol, the said cationic organic coagulant being chosen from the group of linear or branched polymers based on diallyldialkyl ammonium salts. | 02-21-2013 |
20130134103 | SYSTEMS AND METHODS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a tailing solution. | 05-30-2013 |
20130206702 | FLUID TAILINGS FLOCCULATION AND DEWATERING USING CHEMICALLY-INDUCED MICRO-AGGLOMERATES - A process for tailings flocculation and dewatering is disclosed. In particular, disclosed is a method for generating chemically-induced micro-agglomerates (CIMA) of fine particles in a fluid tailings stream and using the micro-agglomerates to enhance tailings flocculation and dewatering. | 08-15-2013 |
20130256235 | WATER TREATMENT COMPOSITIONS AND METHODS OF USE - Methods for clarifying water, reducing turbidity of water, and removing phosphate from water include adding a water treatment composition having an aluminum-containing coagulant, and a natural non-charged polysaccharide, such as guar. The aluminum-containing compound can include polyaluminum chloride, aluminum chlorohydrate, polyaluminum chlorohydrate, aluminum sulfate, sodium aluminate, polyaluminum sulfate, polyaluminum silicate chloride, polyaluminum silicate sulfate, or a combination thereof. | 10-03-2013 |
20140076822 | Process for Filtration Enhancement of Aqueous Dispersions - A method for enhancing filtration performance in separating solids from liquids in an aqueous dispersion comprising a solids phase and a liquid phase in a two step process having a physical separation step and a filtration step comprising adding at least one filtration aid promoter and at least one synthetic polymer to the aqueous dispersion during and/or before the physical separation step resulting in concentrate and filtering the concentrate. The method may be applied in mining operations for dewatering mining slurry. Also, a composition applied in such method comprising at least one filtration aid promoter and at least one synthetic polymer. The filtration aid promoter comprises natural polymers, semi-natural polymers, coagulants and combinations thereof. | 03-20-2014 |
20140158633 | PARTICLE SUSPENSIONS OF FLOCCULATING POLYMER POWDERS AND POWDER FLOCCULANT POLYMER BLENDS - Powder blends are described comprising blends of particulate water soluble high molecular weight polymer flocculants. The polymer flocculants can include polyethylene oxide, polyacrylamide, copolymers thereof and combinations thereof. The powder blends allows the use of fine powders while reducing potential air quality and safety issues. The powder blends can be used for waste water purification, fiber dewatering, and the like. The powder blends can be diluted by a water dilution flow prior to entering a waste water stream. | 06-12-2014 |
20140217034 | Compositions for Conditioning Sludge - Composition for conditioning sludge, comprising a mineral compound that is lime and an organic compound that is a cationic organic coagulant having an average molecular weight less than or equal to 5 million g/mol and greater than or equal to 20,000 g/mol, the said cationic organic coagulant being chosen from the group of linear or branched polymers based on diallyldialkyl ammonium salts. | 08-07-2014 |
20140263082 | POLYMER BLENDS FOR FLOCCULATION - Polymer flocculants are described comprising blends of high molecular weight polyethylene oxide and high molecular polyacrylamides. When introduced in desired amounts and with desired molecular weight ranges, excellent flocculation function is found that can be used to reduce polymer consumption to obtain a desired purity of clarified waste water. It has been found that the desirable polymer blends can be effectively added upstream from locations in which polyethylene oxide would generally be added so that the polymer blend can effectively mix with the slime flow to reduce or eliminate the need for excess polymer use to compensate for less effective mixing with the slime flow. Suitable waste treatment systems are described to provide for the delivery of the flocculants in the waste treatment process. | 09-18-2014 |
20140319070 | Composition For Treating Suspensions Of Solid Particles In Water And Method Using Said Composition - A composition for treating an aqueous suspension of mineral particles includes at least one water soluble polymer and at least one calcium salt, magnesium salt or both a Calcium salt and a Magnesium salt. The composition is in powder form. | 10-30-2014 |
20150041406 | METHOD OF TRACING CHEMICAL QUANTITIES USING ENCAPSULATED FLUORESCENT DYES - The invention provides methods and compositions for utilizing encapsulated tracer dyes in difficult liquids such as wastewater or with highly reactive treatment chemicals such as aluminum-based coagulants. In difficult liquids or highly reactive treatment chemicals even so-called “inert” tracers end up reacting and their fluorescence changes. As a result they are inconsistent and cannot be used to measure the amount of treatment chemical present. But by encapsulating the tracer dyes, even non inert tracer dyes become inert and they can reliably be used to measure the amount of treatment chemical present even if highly reactive or in a difficult liquid. | 02-12-2015 |
20150053622 | METHOD TO TREAT FLUSHING LIQUOR SYSTEMS IN COKE PLANTS - Methods are disclosed for reducing oil in water emulsions in coking processes. One exemplary method comprises: providing an aqueous stream with an oil in water emulsion; providing a treatment composition, wherein the treatment composition comprises at least one cationic polyacrylamide; and contacting the aqueous stream with the treatment composition. | 02-26-2015 |
20150090667 | WATER TREATMENT COMPOSITIONS AND METHODS OF USE - Methods for clarifying water, reducing turbidity of water, and removing phosphate from water include adding a water treatment composition having an aluminum-containing coagulant, and a natural non-charged polysaccharide, such as guar. The aluminum-containing compound can include polyaluminum chloride, aluminum chlorohydrate, polyaluminum chlorohydrate, aluminum sulfate, sodium aluminate, polyaluminum sulfate, polyaluminum silicate chloride, polyaluminum silicate sulfate, or a combination thereof. | 04-02-2015 |
20150144572 | PARTICLE SUSPENSIONS OF FLOCCULATING POLYMER POWDERS AND POWDER FLOCCULANT POLYMER BLENDS - Powder blends are described comprising blends of particulate water soluble high molecular weight polymer flocculants. The polymer flocculants can include polyethylene oxide, polyDadmac, Dadmac-acrylamide copolymers, copolymers thereof and combinations thereof. The powder blends allows the use of fine powders while reducing potential air quality and safety issues. The powder blends can be used for waste water purification, fiber dewatering, and the like. The powder blends can be diluted by a water dilution flow prior to entering a waste water stream. | 05-28-2015 |
20150144573 | CONSOLIDATION AND DEWATERING OF PARTICULATE MATTER WITH PROTEIN - A method of treating a suspension of particles in a fluid including the steps of promoting flocculation of the particles, and dewatering the flocs to form a cake with a solids content, an improvement including the step of exposing the suspension to chemicals of the protein family. The suspension can include a suspension of biological sludge in water. The suspension can be a suspension of non biological material. | 05-28-2015 |
20150376038 | CLARIFICATION OF HYDROCARBONS AND SUSPENDED MATTER FROM AN AQUEOUS MEDIUM - A method for removing components from an aqueous medium is described. The method includes dispensing a formulation comprising one or more of zinc chloride, calcium chloride, zirconium acetate and zirconium oxychloride to an aqueous medium. The method includes allowing the formation of floccules in the aqueous medium, wherein the floccules contain the component to be removed. The method includes separating the floccules from the aqueous medium to remove the component. | 12-31-2015 |
20160046512 | USE OF A DUAL POLYMER SYSTEM FOR ENHANCED WATER RECOVERY AND IMPROVED SEPARATION OF SUSPENDED SOLIDS AND OTHER SUBSTANCES FROM AN AQUEOUS MEDIA - A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan, followed by cationic chitosan, causes the rapid formation of very large and cohesive fibrillar aggregates that may exhibit high solids to liquid ratios and that quickly settle out from the aqueous media. The aqueous media can be easily separated from the large fibrillar aggregates by settling under gravity or by filtration through a porous containment device, such as a synthetic or non-synthetic woven or non-woven fabric including a geotextile fabric or a solid containment device containing a solid mesh screen. | 02-18-2016 |
20160046513 | COMPOSITION AND SYSTEM FOR FLOCCULATING OR SETTLING SOLIDS FROM LIQUIDS AND METHODS FOR USING SAME - A composition, and its method of manufacture, is provided for the settling of solids suspended in liquids passing through a reactor housing containing the composition whereupon the composition can dissolve and enter into the liquid and then contact the suspended solids in the liquid. A system and method of for treating water or sewage is further provided, The system can include a screening tank, a septic tank, a flocculant and mixing reactor, a primary clarifier, a secondary clarifier, a sludge dewatering tank, a surge tank, one or more filter tanks and a disinfection tank. The method can include the steps of receiving water or sewage to be treated and passing it through a screening tank and septic tank, a flocculant reactor, a primary clarifier, a secondary clarifier, a sludge dewatering tank, a surge tank, one or more filter tanks and a disinfection tank. | 02-18-2016 |
20160200600 | ENHANCEMENT OF DEWATERING USING SOY FLOUR OR SOY PROTEIN | 07-14-2016 |