Entries |
Document | Title | Date |
20090314720 | NOVEL COMPOSITIONS AND USES THEREOF - The present technology provides systems and methods for treating a fluid by contacting a compound to the fluid. The compound comprises an azodicarbonamide or an azodicarbonamide derivative, wherein the treatment reduces the amount of hydrogen sulphide, iron sulphide and/or mercaptan in the fluid. Certain embodiments of the present technology provide a composition comprising an azodicarbonamide or an azodicarbonamide derivative and a support and/or a suspension agent. | 12-24-2009 |
20100032379 | METHOD FOR TREATMENT OF SLUDGE OR WASTEWATER - A method of treating sludge or wastewater involving the following steps: a swelling step which prepares a swelling liquid by adding a powdery polymer flocculant to water; a dissolution step which obtains an aqueous flocculant solution by supplying the swelling liquid to a filtration component and passing a filtering area of the filtration component; a flocculation treatment step which adds the aqueous flocculant solution to sludge or wastewater, wherein the total processing time from the time point where the powdery polymer flocculant was added to water until just before adding to sludge or wastewater to the aqueous flocculant solution is less than 3 hours. | 02-11-2010 |
20100116751 | CARBON NANOTUBE MATERIAL AND METHOD FOR THE SEPARATION OF LIQUIDS - There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes. | 05-13-2010 |
20100176061 | WATER PURIFICATION - The invention provides an efficient method to purify an aqueous solution, typically mine drainage water, especially of anions and cations present in the aqueous solution as dissolved solids, the anions and cations are removed by treatment with a positively charged extractant having at least eight carbon atoms, whereby an unstable emulsion is formed; the unstable emulsion is allowed to break into an extract phase loaded with the anions and cations, and a water phase depleted in anions and cations; a floe inherently forms in the loaded extractant phase and then the loaded extractant phase and floe are separated from the purified water and treated to remove the anions and cations as concentrated useful products; the treated aqueous phase now reduced in anion and/or cation content is also separated from the emulsion as a purified aqueous solution. The extractant phase is preferably recycled. A continuous water purification process is provided. | 07-15-2010 |
20100294725 | AZETIDINIUM-FUNCTIONAL POLYSACCHARIDES AND USES THEREOF - The present invention relates to polysaccharides that have been modified by providing azetidinium functionality thereto. Such functionality can be provided by crosslinking a polysaccharide with a resin having azetidinium functional groups. In one or more aspects, the polysaccharide can comprise one or more of starch, guar gum, alginate or derivatives thereof. Polysaccharides having azetidinium functionality according to the present invention are suitable for multiple uses. Such uses include, but are not limited to, removal of one or more solid materials from a liquid, beneficiation of an ore, removal of metallic ions from a liquid; providing oil from bitumen; and removal of mercury from synthetic gypsum. Other uses of the functionalized polysaccharides of the present invention include hydroseeding, dust control and corosion control. | 11-25-2010 |
20110089117 | REMOVAL OF SILICON FROM BRINE - A process for removing silicon compounds from aqueous NaCl brine includes, first, adjusting a weak brine to a pH value of less than 3 with hydrochloric acid. Iron(III) chloride or other trivalent iron ions are added to the acidified weak brine, the obtained weak brine is then continuously fed to a stirred dissolution vessel which contains undissolved salt in addition to brine. Fresh salt is charged batchwise and intermittently to the dissolution vessel to produce strong brine. The obtained strong brine is fed to a stirred buffer vessel, the pH value in this buffer vessel being maintained at a level ranging from 5 to 8. A strong-brine flow is continuously withdrawn from the buffer vessel and filtered, and the filtrate containing the added iron and silicon is discharged. Also a system for carrying out this process includes: a dissolution vessel for salt, a stirrer in the dissolution vessel, a feed device for batchwise feeding salt to the dissolution vessel, a point for feeding weak brine to the dissolution vessel, points for feeding hydrochloric acid and iron(III) chloride to the weak brine supply line, a buffer vessel for strong brine, a stirrer in the buffer vessel, a flow connection between the dissolution vessel and the buffer vessel, a filter having an outlet for strong brine and a withdrawing device for filter cake, a discharge port and a device for conveying strong brine from the buffer vessel to the filter. | 04-21-2011 |
20110132846 | FEEDWELL DILUTION SYSTEM FOR THICKENERS IN OIL SANDS - A feedwell dilution system for diluting an influent feed stream, which include at least one eductor assembly, and a feedwell assembly. The at least one eductor assembly includes a feed pipe which converges to a narrow throat portion or nozzle; a mix tube positioned downstream from the narrow throat portion that is sized and configured to provide mixing of the influent feed stream and a clarified liquid drawn from a settling tank; and an enclosure, which is installed around the narrow throat portion and an inlet portion of the mix tube and includes an open-ended portion on a bottom thereof, which is sized and configured to allow a clarified liquid to be pulled into the mix tube from below the inlet portion of the mix tube. The feedwell assembly is sized and configured to receive the mixture of the influent feed stream and the clarified liquid from the mix tube. | 06-09-2011 |
20110210075 | ELECTROCOAGULATION DEVICES AND METHODS OF USE - The present invention provides electrocoagulation devices and methods for using the same to treat water to remove at least a portion of suspended, dissolved solids, or a combination thereof. | 09-01-2011 |
20110220581 | HYDROPHOBICALLY MODIFIED POLYAMINE SCALE INHIBITORS - Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams. | 09-15-2011 |
20110226701 | ENHANCING SEDIMENTATION PERFORMANCE OF CLARIFIERS/THICKENERS - Some mineral processing plants encounter difficulties in dewatering pulps using clarifier/thickener (C/T) equipment due to a layer of fine particles, air bubbles and chemicals formed at the top of the liquid in the thickener. Such layers are very stable and form a cap on the C/T. The dewatering performance of the C/T then deteriorates under these conditions, and a high percentage of solids is contained in the thickener overflow. A process for removing water from rock slurry containing a wide range of particle sizes in mineral processing operations has been developed. The process includes: (a) classifying the feed slurry into two size fractions, namely a coarse fraction and a fine fraction, (b) treating the fine fraction (and the coarse fraction if required) with a selected flocculant, and (3) thickening the flocculated slurry in sedimentation equipment to separate liquid from solids. | 09-22-2011 |
20110315636 | Soluble Anion Exchangers From Hyperbranched Macromolecules - Novel macromolecules for filtering contaminants from water and non-aqueous solutions. Molecules such as polyethyleneimine (PEI) may be functionalized, cross-linked, and/or quaternized to improve their binding capacity or selectivity with particular water contaminants such as bromide, nitrate, and sulfate. The macromolecules may be either recyclable or non-recyclable, and may be recovered or separated from water using means such as ultrafiltration, flocculation, or immobilization on a substrate. | 12-29-2011 |
20120091065 | METHODS AND APPARATUS FOR TREATING WATER AND WASTEWATER EMPLOYING A CLOTH DISK FILTER - Methods and apparatus for treating water and wastewater include the step of flowing a suspended solids stream generally upward through a sludge blanket region of a cloth disk filter vessel, thus forming a partially treated effluent composition and a solids-enriched sludge blanket. The partially treated effluent composition is allowed to flow generally upward to a cloth filter zone in the vessel after contacting the sludge blanket. The methods include flowing the suspended solids stream through one or more distribution headers positioned in the sludge blanket. An option is to provide a sludge concentration zone in the sludge blanket region, allowing sludge to flow into the sludge concentration zone to form concentrated sludge. Other methods and apparatus include backwash assemblies that backwash substantially the entire filter cassette surfaces, with or without use of a sludge blanket zone. Either the backwash assemblies or filter cassettes move in the latter methods and apparatus. | 04-19-2012 |
20120138540 | HYDRODYNAMIC FILTER, FILTERING APPARATUS INCLUDING THE SAME, AND FILTERING METHOD USING THE HYDRODYNAMIC FILTER - A hydrodynamic filter includes a first portion, and a second portion which is spaced apart from and faces the first portion. The first portion includes a plurality of protrusions protruding in a first direction, and the second portion includes a plurality of protrusions protruding in a second direction opposite to the first direction. A filtering apparatus including a body which includes a plurality of the hydrodynamic filters and filters a fluid including target molecules, an inlet portion in connection with the body, and an outlet portion in connection with the body. | 06-07-2012 |
20120211430 | HIGH SPEED FILTRATION DEVICE USING POROUS MEDIA, AND BACKWASH METHOD THEREOF - The present invention relates to a porous media-mediated high speed filtration device for easy backwash, wherein the inflow water to be filtered is guided to an upper portion of the high speed filtration device and is filtered by downflow and porous media are backwashed for maintaining optimum filter efficiency by blocking the flow of inflow water and water to be treated after sensing the level of the inflow water or the change in the flux of the water to be treated, supplying backwash water and/or air by upflow through a backwash equipment to separate pollutants in the porous media by the collision and friction between the porous media by flowing of the porous media through the stream of the backwash water, placing the porous media in a stationary location, and discharging the pollutants through a discharge pipe of the high speed filtration device before the pollutants settle. In addition, the present invention comprises a backwash method of the high speed filtration device using porous media. | 08-23-2012 |
20130098842 | METHOD FOR EVALUATING PERFORMANCE OF A LIME SOFTENING CLARIFIER - The various embodiments herein provide a method for evaluating a performance of lime softening clarifiers. The method is based on electrical conductivity (EC) measurement of the treated water samples after addition of carbon dioxide. If EC of the treated water after carbon dioxide gas addition is lower than EC of the treated water, this shows an abnormal function of softening process and the lime dosage must be decreased. If EC of the treated water after carbon dioxide gas addition is higher than EC of the treated water, then the lime dosage is not enough and lime dosage must be increased. If EC of the treated water after carbon dioxide gas addition is roughly equal to EC of the said treated water, then the lime dosage is optimum and clarifier works in optimum condition. | 04-25-2013 |
20130126438 | INSTALLATION AND PROCESS FOR RECYCLING WIPING SOLUTION OF ONE OR MORE INTAGLIO PRINTING PRESSES - There is described an installation ( | 05-23-2013 |
20130248454 | PRODUCED WATER TREATMENT IN OIL RECOVERY - An oil recovery process that utilizes one or more filtration media having an efficiency of 30% or greater for particles of 1 micrometer size or greater and a flow rate of 2 milliliters per minute per centimeter squared of media per unit pressure of the liquid (ml/min/cm2/kPa) to remove silica and/or oil and/or dissolved organics and/or dissolved solids from produced water which includes separating oil from the produced water and precipitating silica into particles and wherein the produced water having the precipitated silica is directed to a filtration medium which operates in a direct flow filtration mode and removes the precipitated silica from the produced water to form a permeate stream. | 09-26-2013 |
20140061136 | SEDIMENT CONTROL SYSTEM - An apparatus and method treats contaminated water by encompassing within a water-permeable enclosure a clay-based flocculant material for reducing a contaminant entrained in a flow of contaminated water. In one embodiment, the material further comprises a polyacrylamide composition. A placement member attaches to the water-permeable enclosure to impede the flow of contaminated water. An attached or proximately positioned filter captures the flocculant. Alternatively, the flocculant is captured in a clarification settling basin. | 03-06-2014 |
20140076821 | Process for Recovering Organics From Wastewater - Disclosed is a method for treating wastewater by removing organics, such as water-soluble organics, by catalysis in the presence of an acid. Removal of such organics is in the form of a tar which includes phenol-derived compounds. | 03-20-2014 |
20140151306 | Water Treatment Apparatus and Method of Use - Apparatus for treating water has a generally rectangular container for containing the water, the container having a clarification zone and a settling zone. An entry conduit extends along the container and receives water from a water inlet. Water outlet ports are distributed along the length of the conduit for directing water from the conduit into the settling zone. A water exit trough spaced across the container from the entry conduit and extending along the container receives clarified water flowing from the settling zone through the clarification zone. The top of the settling zone is open to allow access down through the settling zone to a sludge collection zone in the bottom of the container. | 06-05-2014 |
20140251918 | Dissolvable Bed Chromatographic Column and Methods of Use - An automated or semi-automated method was developed for the isolation of proteins using lanthanide metals. Phosphoproteins and glycoproteins can be isolated from complex biological samples using filtration with novel column configurations. | 09-11-2014 |
20140299551 | DESALINATION SYSTEM AND METHOD - A desalination system comprises an electrodialysis reversal apparatus configured to receive a first stream for desalination and a second stream to carry away ions removed from the first stream, and a precipitation unit in fluid communication with the electrodialysis reversal apparatus and configured to circulate the second stream therebetween. At least one backwashable filter is disposed between and in fluid communication with the electrodialysis reversal apparatus and the precipitation and configured to filter the second stream in a normal operation mode. A desalination method is also presented. | 10-09-2014 |
20140305876 | CONTAINER FOR PREPARING SERUM AND REGENERATIVE MEDICAL PROCESS USING THE SAME - A blood storage container suitable for quick and efficient production of a large amount of serum while ensuring high safety, and a method of separating blood and a regenerative medical process using the same are provided. A blood component separation storage apparatus is provided for separating a plurality of blood components of blood so as to be stored therein. The blood component separation storage apparatus includes a blood reservoir for holding the blood and a component storage part connected to the blood reservoir aseptically and in an air-tight manner. The blood reservoir contains an anticoagulant which suppresses coagulation of the blood. The blood reservoir has a serum producing function to remove coagulation factors from the blood to an extent enabling use in practical applications as a serum, and the component storage part stores each blood component generated by separation of the blood in the blood reservoir. | 10-16-2014 |
20140374360 | METHOD FOR SEPARATING SUSPENSION OR COLLOID COMPONENTS AND A DEVICE FOR SEPARATING SUSPENSION OR COLLOID COMPONENTS - By means of a method and a device for separating suspension or colloid components a sample is moved through a conduit system which extends in axial direction at at least one flow rate in at least one flow direction over a time period until reaching axial separation of components which are then separated from each other. | 12-25-2014 |
20150048030 | COMPACT DEVICE FOR WATER TREATMENT - The invention relates to a water treatment device comprising a mixing tank comprising an inlet path ( | 02-19-2015 |
20150299006 | SYSTEMS, METHODS, PROCESSES AND APPARATUS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems and methods for removing fine particulate matter from a fluid, comprising a separator that separates an inflow fluid stream into an overflow fluid path and an underflow fluid path, where the underflow fluid path is treated with a tethering material that attaches to the coarse particulate matter to form tether-bearing anchor particles and where the overflow fluid path is treated with an activating material so that the activating material interacts with the fine particulate matter to form activated particles. After these treatments, the underflow fluid path containing the tether-bearing anchor particles is commingled with the overflow fluid path containing the activated particles, so that a removable complex is produced that can be removed in a settling facility, thereby removing the fine particulate matter from the fluid. The systems and methods are particularly advantageous for removing particulate matter from a fluid waste stream following mining or ore processing operations, such as oil sands mining or processing. | 10-22-2015 |
20160060133 | REMOVAL OF METALS AND CATIONS THEREOF FROM WATER-BASED FLUIDS - At least one solid may be separated from a water-based fluid by flowing the water-based fluid through a filter media in combination with filtration equipment, such as a filter press. In a non-limiting embodiment, the filter media may be or include, but is not limited to, diatomaceous earth and at least one alkaline earth metal(s). The solid(s) may be or include a metal, such as but not limited to zinc, iron, manganese, mercury, nickel, cations thereof, and combinations thereof. In a non-limiting embodiment, the water-based fluid may be or include a production fluid, a drilling fluid, a drill-in fluid, a completions fluid, a fracturing fluid, a servicing fluid, a stimulation fluid, a treating fluid, and combinations thereof. | 03-03-2016 |
20160074780 | APPARATUS AND METHOD FOR DEWATERING FLOCCULATED SLURRIES - The embodiments relate to systems and methods for dewatering a flocculated slurry. A flow of slurry is received, the slurry comprising a liquid and solid particulate that is suspended in the liquid. At least a portion of the solid particulate is flocculated to form the flocculated slurry comprising flocculated material in the liquid. The flow of the flocculated slurry is delivered to a tracking screen that is configured to separate the flocculated material from the liquid. While the flow of flocculated slurry is disposed relative to the tracking screen, a pulse of energy is delivered to the tracking screen. | 03-17-2016 |
20160106057 | TWO-TANK WIERED RESERVOIR AND METHOD OF USE - A method and apparatus for collecting agricultural manure in a confined animal feeding operation includes a separator which receives heavy manure removing particulate from suspension to produce light manure. Heavy manure is collected to a volume of heavy manure sufficient to substantially fill the first tank. Within the first tank, particulate migrates, due to the influence of gravity to form a layer containing manure comprising a lesser density of particulate than is present in the volume of heavy manure. Additional heavy manure buoys the layer such that the upper surface exceeds a height of a weir. The weir is situated in a channel communicating between the first tank and a second tank configured to receive light manure from the separator. | 04-21-2016 |
20170233275 | TRANSPORTABLE MULTI-CHAMBER WATER FILTRATION SYSTEMS | 08-17-2017 |
20180022995 | LOCALIZED IRRIGATION METHOD | 01-25-2018 |