Abstract: Provided is a magnetic-cored dendrimer represented by the following Chemical Formula (1): wherein A represents a metal nanoparticle; Z is a hydrophilic functional group or hydrophobic functional group; and m and n each represent an integer 1 or larger. More particularly, provided are a magnetic-cored dendrimer end-capped with hydrophilic or hydrophobic terminal groups, and a method for preparing the same. The magnetic-cored dendrimer may be used to adsorb and separate contaminants in a simple and effective manner.

Abstract: A treatment method of organic compounds included in waste water, comprising the steps of: supplying waste water to an adsorber 2 filled with an adsorbent 3 therein for adsorbing the organic compounds in the waste water by the adsorbent 3 in the adsorber 2, supplying a current between an anode 9 and a cathode 8 in water including an electrolyte in an electrolyzer 6 for electrolyzing the water including an electrolyte, and supplying an electrolyte resulting from electrolysis in the electrolyzer 6 to the adsorbent 3 in the adsorber 2 for contacting the electrolyte with the adsorbent 3, so that the organic compounds adsorbed by the adsorbent 3 are desorbed or decomposed.

Abstract: A method of synthesizing carbon-magnetite nanocomposites. In one embodiment, the method includes the steps of (a) dissolving a first amount of an alkali salt of lignosulfonate in water to form a first solution, (b) heating the first solution to a first temperature, (c) adding a second amount of iron sulfate (FeSO4) to the first solution to form a second solution, (d) heating the second solution at a second temperature for a first duration of time effective to form a third solution of iron lignosulfonate, (e) adding a third amount of 1N sodium hydroxide (NaOH) to the third solution of iron lignosulfonate to form a fourth solution with a first pH level, (f) heating the fourth solution at a third temperature for a second duration of time to form a first sample, and (g) subjecting the first sample to a microwave radiation for a third duration of time effective to form a second sample containing a plurality of carbon-magnetite nanocomposites.

Abstract: The present invention relates to a method for removing impurities from biopolymer material, e.g. polysaccharides, polypeptides or polynucleotides. More particularly, the present invention provides a method of reducing lipopolysaccharide levels in a lipopolysaccharide containing biopolymer material, comprising the successive steps of: a) providing an aqueous solution containing 0.05-50 wt. % of dissolved lipopolysaccharide-containing biopolymer material; 0.001-10 wt.% of a surfactant; 0.05-15 wt. % of solid adsorbent; and at least 50 wt. % of water; b) allowing the adsorbent to adsorb lipopolysaccharides; c) separating the solid adsorbent containing adsorbed lipopolysaccharides from the remaining aqueous solution; and d) recovering the biopolymer material containing a reduced level of lipopolysaccharide from the separated aqueous solution.

Abstract: The present invention relates to a purification device for the purification of a liquid such as water, preferably drinking water, which purification device comprises at least one casing (1) having at least one insert (10), said casing (1) having at least one inlet (8) and at least one outlet (9) for the liquid and said insert (10) comprising at least one filter (15) located in a flow path of the liquid. The purification device comprises at least one galvanic couple (12, 14) located in said flow path. The present invention also relates to an insert and a method of purifying a liquid.

Abstract: The invention discloses a novel method for trace phosphate removal from water by using a composite resin. Firstly, adjusting the pH value of the raw water to 5.0˜9.0 and prefiltering the water, then leading the filtrate through an absorption tower packed with the composite resin, the trace phosphate in the water is therefore absorbed onto the composite resin; stopping the absorption run when it reaches the leakage point, using a binary NaOH-NaCl solution as the regenerant of the exhausted sorbent, followed by rinsing the composite resin-filled absorption tower with saturated carbon dioxide solution to regenerate the resin. In this invention, a composite resin with nanosized hydrated ferric oxide (HFO) or hydrous manganese dioxide (HMO) particles loaded on its surface is adopted as the absorbent for enhanced phosphate removal from water. A significant decrease of phosphate content in the effluent from this treatment system is found from 0.

Abstract: An apparatus for water treatment which comprises a means of removing ingredients contained in water and a means of adsorbing ions with a porous molding as an adsorbent, wherein the porous molding comprises fibrils comprising an organic polymer resin and an inorganic ion adsorbent. The fibrils form interconnecting pores open to the outer surface and have voids in inner parts thereof, at least part of the voids being open to the surface of the fibrils. The inorganic ion adsorbent has been deposited on the outer surface of the fibrils and on the surface of the voids in the fibrils.

Abstract: The invention provides a magnetic particle which can immobilize the intended substance easily and efficiently; and a method for producing thereof. The invention relates to a magnetic particle, comprising an aggregate which comprises a magnetic substance and a compound having an alkyl group, and a gel layer which covers the aggregate, in which the gel layer has a hydrophilic group.

Abstract: A phosphorus recovery method and a phosphorus recovery system which can make equipment size small, and can be added easily also to an existing wastewater treatment facility, and can recover phosphorus by low cost, are provided. A phosphorus compound adsorption material includes a nitrogen containing compound which has an amino group at an end of molecular structure, a carrier supporting the nitrogen containing compound, and zinc ion or iron ion fixed to the nitrogen containing compound. After passing water to be treated containing phosphorus to an adsorption tower filled up with this phosphorus compound adsorption material to make phosphorus stick to the phosphorus compound adsorption material, a drug solution for desorption is supplied to the adsorption tower, and phosphorus is desorbed in liquid and is recovered.

Abstract: Processes and systems are disclosed that relate to the removal of impurities and separation the light olefins from an MTO product vapor stream. Specifically, the processes and systems relate to recovery of light olefins during regeneration of an adsorber in an oxygenate removal unit. Processes and systems for recovering light olefins during regeneration of an adsorber in an oxygenate removal unit can include recycling residual effluent stream to an upstream operation unit upstream of the oxygenate removal unit. Processes and systems for recovering light olefins during regeneration of an adsorber in an oxygenate removal unit can also include recycling residual effluent gas produced by depressurizing residual effluent in the first adsorber, as well as preferably venting an effluent gas from the first adsorber to a compressor upstream of the oxygenate removal unit.

Abstract: Systems, methods and compositions for the separation and recovery of hydrocarbons from particulate matter are herein disclosed. According to one embodiment, a method includes contacting particulate matter with at least one ionic liquid. The particulate matter contains at least one hydrocarbon and at least one solid particulate. When the particulate matter is contacted with the ionic liquid, the hydrocarbon dissociates from the solid particulate to form a multiphase system.

Abstract: A filter column apparatus comprising a filtration zone and a reslurry zone. These zones are separated by a barrier wall or are in substantial cooperation with each other. Also disclosed is a process for separating at least a portion of at least one substantially solid component from a solid-liquid stream comprising the substantially solid component and at least one substantially liquid component. Also disclosed is a process for forming a substantially solids containing packed bed. Also disclosed is a process for purifying paraxylene in a filtration zone.

Abstract: Contaminated water is filtered by passing through a mat formed from strips of material arranged side by side and connected at spaced positions longitudinally to define a honeycomb structure with top and bottom surfaces of the mat defined by edges of the strips with the top and bottom edges covered by cover sheet bonded to the edges of the strips. At least some of the cells are at least partly filled with a particulate water filtration medium such as zeolite.

Abstract: A method and apparatus for adsorbing perchlorate in a fluid and successively destroying it. Perchlorate in the fluid is removed by adsorption on an adsorbent in a column. The adsorbent is then regenerated by desorbing perchlorate, and the perchlorate in the regenerant is then chemically destroyed.

Abstract: A method and an apparatus for the modification of seawater, brine, or alike, to render it suitable for irrigation, industrial use, or for further treatment in a drinking water purification plant, as well as to extract desired substances from brines, such as boron, and to clear waste from mining processes, by reducing environment endangering contaminants, like petroleum hydro-carbons, or radioactive substances, as well as inactivating microorganisms and virus in biosolids, by means of exposing the substances to high-intensity macrosound, i.e., alternating mechanical energy radiation at (ultra-) sonic frequencies. The treatment enhances the separation of salt, or/and other desired materials, from the water, and activates in situ the adsorption of the materials on sorbefacient substances supplied to the desalination process in form of dust of pulverized, liquefied, or vaporized substances, or by elements (of walls) of treatment chambers, or filters.

Abstract: A method, process and system for the recycling of electrochemical-mechanical planarization slurries/electrolytes as they are used in the back end of line of the semiconductor wafer manufacturing process is disclosed. The method, process and system includes with the removal of metal ions from slurries using ion exchange media and/or electrochemical deposition.

Abstract: The present invention is related to methods, apparatuses, and compositions for controlling water hardness. The methods, apparatuses and compositions also reduce scale formation. The present invention includes substantially water insoluble resin materials. The resin materials may be loaded with a plurality of cations.

Abstract: Discolored organic compounds (DOC) may be extracted from a medium using a sorbent composition derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxitic ores. In some aspects, the sorbent composition is slurried with the medium. In other aspects, the sorbent composition is formed into pellets or the like, which are contacted with the medium. The red mud (along with adsorbed contaminants) is then separated from the water using any suitable technique, such as filtration, sedimentation, or centrifugation.

Abstract: This application relates to processes for selectively removing anionic phosphate molecules from contaminated hydrocarbon oil using the ion exchange activity of acid activated clay. The methods are particularly applicable to the removal of volatile phosphates from hydrocarbons contaminated during fracturing operations.

Abstract: A composition of matter for rehabilitating a fluidic substance, comprising: a) at least one decolorizing ingredient constituting at least 58% by volume of the whole composition; and, b) at least one acidity reducing ingredient constituting at least 5% by volume of the whole composition.

Abstract: The invention relates to a two-stage design for a water purification system, with water to be purified first passing through a first stage containing particulate filtration media, and a second stage containing a porous filtration block. The particulate filtration media can be the same as, or different from, material included in the porous block. Either material may be any material that removes contaminants from water by, e.g., absorption, adsorption, ion exchange, sequestration, or other mechanism, or any combination of these.

Abstract: A ship comprises a bilge water sump collecting bilge water and contaminants. A first contaminant separation device is provided comprising a conveyor arrangement with an endless belt comprising adsorbing/absorbing material. The conveyor arrangement has a first portion submergible into the bilge water and contaminants in the bilge water sump, and a second portion being spaced from the first portion and provided with means for releasing adsorbed/absorbed contaminants from the conveyor belt and means for collecting the contaminants released. The conveyor arrangement is further provided with means for driving the endless belt along a moving path defined by guiding means.

Abstract: An adsorption process in which high adsorption of C2-C6 fluorine-containing compound can be attained without any morphological change thereof by the use of active carbon; and a desorption process in which active carbon and adsorbed substances can be recycled by desorption from active carbon. A liquid containing the C2-C6 fluorine-containing compound is brought into contact with active carbon to thereby cause the active carbon to adsorb the fluorine-containing compound and thus obtain a liquid of low fluorine-containing compound content. The active carbon having the adsorbed fluorine-containing compound is heated so as to desorb the fluorine-containing compound from the active carbon.

Abstract: A method for processing water, including, collecting contaminated water from a first water collection site; collecting contaminated water from a second water collection site; transferring the contaminated water collected from the first and second water collection sites to a water treatment site; and processing the contaminated water to produce a processed water. Also, a system for processing rainwater, the system including a separation unit configured to receive a flow of rainwater from hardscape; a storage tank in fluid communication with the separation unit; a primary filtration unit in fluid communication with the storage tank; a secondary filtration unit in fluid communication with the primary filtration unit; an adsorption unit in fluid communication with the secondary filtration unit; and a disinfection unit in fluid communication with the adsorption unit.

Abstract: The present invention provides magnetically responsive activated carbon, and a method of forming magnetically responsive activated carbon. The method of forming magnetically responsive activated carbon typically includes providing activated carbon in a solution containing ions of ferrite forming elements, wherein at least one of the ferrite forming elements has an oxidation state of +3 and at least a second of the ferrite forming elements has an oxidation state of +2, and increasing pH of the solution to precipitate particles of ferrite that bond to the activated carbon, wherein the activated carbon having the ferrite particles bonded thereto have a positive magnetic susceptibility. The present invention also provides a method of filtering waste water using magnetic activated carbon.

Abstract: A fluid processing system comprising a housing (12) and at least one of a first type and at least one of a second type module, (25-28), The first and second modules having different fluid processing characteristics each module comprising a body of wound layers of a sheet material, said body having an inner and an outer peripheral surface, a first and a second end face, a passage (42, 44) extending along the winding axis of said body and in fluid communication with said inner peripheral surface, the passage of one of the first type and one of the second type modules being closed at one end thereof, said sheet material having a plurality of openings formed therein, said openings forming a first and a second type of channels within the wound layers of sheet material of said body, extending in a direction from the inner peripheral surface to the outer peripheral surface, the first type of channels being open at one end at said outer peripheral surface of the body and closed at the other end located adjacent to sa

Abstract: Colored wastewater from industries, agriculture and the like is discolored by adjusting pH of the wastewater and filtering the wastewater through a mixture of acid-treated sawdust produced from sawdust which has been disposed of after being used for fungi production and charcoal thereby to remove a color component fraction from the wastewater and through a filter material, for example acid-treated rice husk charcoal, in which autochthonous microorganisms are embedded thereby to absorb color components remaining in the wastewater.

Abstract: A method for magnetically assisted extraction of a target substance from an aqueous solution containing a plurality components includes mixing a surfactant and functional magnetic particles having affinity for the target substance into the aqueous solution containing the target substance so as to bind the target substance to the functional magnetic particles and form a particle-containing single-phase aqueous surfactant solution. The particle-containing single-phase aqueous surfactant solution is transitioned to a two-phase state, a first particle- and surfactant-containing disperse phase being formed within a surrounding second phase. The first particle- and surfactant-containing disperse phase and the surrounding second phase are separated using a magnetic field. The first particle- and surfactant-containing disperse phase are separated.

Abstract: The invention has two primary portions, a means to provide ultra-violet radiation and a means for adsorbing organic, inorganic and, optionally, pathogens. The means to provide ultra-violet radiation comprises ultra-violet light sources emitting, at least in part, in the spectrum around 265 nm. Light emitting devices, including light emitting diodes and other solid state light emitting devices are available in this range as well. The adsorbent portion comprises several different adsorbent media, including zeolites, titanium dioxide (TiO2), alumina, carbon, micro- and/or nano-porous carbon, other minerals with a naturally occurring micro- and/or nano-porous structure, synthetic, including organic, substrates with a micro- and/or nano-porous structure, and surface-modified variations of the preceding adsorbents.

Abstract: The invention relates to a method of separating components of a fluid mixture comprising the steps of providing a fluid, providing a sorbent structure (120), sorbing a first component of the fluid, desorbing the first component, and electrokinetically biasing the first component in a direction other than the vector of the fluid mixture.

Abstract: A system and method of filtering metalworking fluid is disclosed. A particle filter is provided in fluid communication with a sump of machining equipment to filter particles from a metalworking fluid. The metalworking fluid is filtered using the particle filter to remove metal filings and debris from the metalworking fluid. A tramp oil filter is provided in fluid communication with the particle filter to remove tramp oil, wherein the tramp oil filter includes hydrophobic material to absorb oil. The oil-free metalworking fluid may then be re-circulated back to the machining equipment.

Abstract: The present invention provides methods for quantitation of glycated protein in a biological sample using a solid support matrix by making a first bound protein measurement total bound protein under conditions where both glycated and non-glycated protein bind to the support in making a second bound protein measurement under conditions where glycated protein is bound to the support and non-glycated protein is not substantially bound. Diagnostic devices and kits comprising the methods of the present invention are also provided.

Abstract: The present invention relates to a process for the purification of water, wherein a surface-reacted natural calcium carbonate is brought into contact with the water to be purified, the surface-reacted natural calcium carbonate being the reaction product of a natural calcium carbonate with an acid and carbon dioxide, which is formed in situ by the acid treatment and/or supplied externally.

Abstract: The present invention relates to liquid clarification. More closely, the invention relates to beverage clarification, such as reduction of colloidal (not microbial) haze-causing substances in beer or related beverages such as wine, juices, flavorings etc. The method of the invention uses a hydrophilic surface for adsorption of haze-forming substances by hydrogen bonding interaction properties between the surface and the haze-forming substances.

Abstract: Method for purifying liquids or fluids to eliminate harmful admixtures and microorganisms by using aerating and incidence of electric charges, wherein purified liquid undergoes gas-dynamic dispersion with the help of blast air passed through channels sloping below an angle of 30-50° according to a level of purified liquid, at a flow velocity of blast air of 10 to 100 m/s, at channel hydraulic resistance varying between 1.5 to 10 kPa and at specific consumption of dispersed water from 0.1 to 30 kg on 1 m3 of blast air. The blast air is previously preliminarily ionized in a non-homogenous electrostatic field of coronary discharges at a voltage between electrodes in a value range of from 3 kV to 10 millions V at corona current values between electrodes in a value range of from 10 to 1000 mA and at a specific power output of electrical discharges in a value range from 0.1 to 10 kWh on 1 m3 of conditioned liquid.

Abstract: Purification techniques have been developed for ceramic powder precursors, e.g., barium nitrate. These techniques can be performed using one or more of the following operations: (1) removal of impurities by precipitation or coprecipitation and separation using a nonmetallic-ion-containing strong base, e.g., tetraalkylammonium hydroxides; (2) reduction of higher oxidation-state-number oxymetal ions and subsequent precipitation as hydroxides that are separated from the solution; and (3) use of liquid-liquid exchange extraction procedures to separate certain impurities.

Abstract: Water filters and methods of filtering fluids (e.g., water) to produce treated water such as potable water. Specifically, water filters comprising activated carbon, fiber composites, or combinations thereof that are operable to remove heavy metals and/or viruses from fluids to produce potable water. The water filters may comprise at least one carbon filter comprising activated carbon particles, and at least one fiber composite filter comprising electropositive metallic fibers having dimensions of between 5 nm and 100 nm. The fiber composite filter may be disposed upstream of the carbon filter, downstream of the carbon filter, or both.

Abstract: A magnetic chemical absorbent according to the present invention is provided with a composite, which is constituted of a core substance comprising magnetite fine particles and schwertmannite being precipitated around the core substance to chemically bond therewith. This magnetic chemical absorbent can be produced in a hydrolysis reaction step, in which crystal of schwertmannite is precipitated by means of hydrolysis reaction by heating a solution of ferric salt and thereafter adding a reactive substance thereto, by means of adding magnetite fine particles into the solution after the solution is heated and before the precipitation of the crystal begins. This magnetic chemical absorbent is novel and good one whose absorption capability for harmful ion is upgraded more. In accordance with a waste-liquid treating method using this magnetic chemical substance, it is possible to intend the reduction of burdens in view of environmental and economic aspects. Moreover, this magnetic chemical absorbent is recyclable.

Abstract: A process for treating water containing dissolved organics, for example, oil sands process-affected water, using petroleum coke is provided, comprising: removing petroleum coke from a coking operation; forming a petroleum coke/water slurry by adding the water to be treated to the petroleum coke; and mixing the slurry for a sufficient time in a carbon adsorption reactor to allow the petroleum coke to adsorb a substantial portion of the dissolved organics from the water.

Abstract: An oil-adsorbing particle composite and a water-treatment method using the same are provided. The particle composite is capable of selectively adsorbing contaminants such as oils contained in industrial and household wastewaters. The water-treatment method is capable of eliminating contaminants from the wastewater using the composite. The particle composite includes water-insoluble organic polymer particles, magnetic particles and a resin binder, the resin binder bonding the polymer particles and the magnetic particles. The polymer particles have an oil-adsorbing characteristic. The magnetic particles have a magnetic characteristic for a rapid collection of the composite using magnetic forces. The method includes dispersing the particle composite in contaminant-containing water, making the particle composite adsorb contaminants to separate the particle composite from the water after the adsorbing.

Abstract: A method and apparatus are provided for the non-recirculating self-sanitization of a carbon filter (14) in a water pretreatment system (12). The apparatus includes a heat exchanger (50) that can maintain an activated carbon bed (44) of the carbon filter (14) at a desired sanitization temperature during service operation of the pretreatment system (12) where the pretreatment system (12) is providing a pretreated water stream (32H) for final treatment.

Abstract: Hydrophilic cross-linked polymeric membranes, when prepared according to the process of the present invention, are unique in character in as much as the steady state permeability of the membrane has been altered by blending and cross-linking polyalkyl amines and polyalcohols. To obtain desired results, the compositions must contain at least 10% polyalkyl amines, with preferred amounts of polyalkyl amines in the composition being in excess of 40%, with over 50% polyalkyl amine concentration by weight.

Abstract: Method and apparatus for suppressed ion analysis in which a sample solution of analyte (e.g., anion) in an eluent of electrolyte counterions (e.g., sodium), is chromatographically separated. Then, the counterions are suppressed in a suppression zone and removed and used to convert the analyte ions to salt form in a salt-converting zone. The suppression and salt-converting zones may be contiguous or remote, and may be performed in devices of the membrane suppresser type. Thereafter, the salts or acids or bases formed from them (e.g., in membrane suppressor devices) are detected. Also, salt conversion can be performed using two ion exchange packed bed salt convertors in which one bed is on-line while the other is regenerated, followed by a reversal of flow.

Abstract: This invention is an improved process for operation of evaporative recirculating cooling systems. In addition to reducing the scaling and corrosive tendencies of the water, the method eliminates or reduces discharge from the system without creating any localized corrosive or scaling conditions as a result of the treatment process. The described measurement and control system generally comprises an array of measurements, a means of implementing control logic, and an array of control actions including activating an ion exchange device to treat makeup water. The measurements can include of physical measurements of flow rates, chemical measurements of water composition, and performance-related metrics such as water corrosiveness or scaling tendency. Preferably, the measurements include one or more of pH, conductivity, hardness, alkalinity, corrosiveness, scaling tendency, treatment additive dosage level, and treatment additive residual of the makeup, treated makeup, and recirculating water.

Abstract: A method for reducing barium concentration in waste streams. Hydrous manganese oxide (HMO) is formed in solution/slurry and mixed with water containing barium such that the hydrous manganese oxide exhibits a negative charge at a desired pH. Barium from the water is adsorbed onto the negatively charged HMO surface. The HMO with adsorbed barium is separated from the water, producing treated effluent having a reduced barium concentration.

Abstract: The invention provides a process for separating a solution from magnetic resin portions, particles and/or fines by passing a solution containing the resin portions, particles and/or fines through a bed of particulate magnetic material.

Abstract: A filter for removing soluble, colloidal, and insoluble particles from a fluid, including lead using a first filter media for filtering soluble material from the fluid, a second filter media, adjacent and in fluid communication with, the first filter media, for filtering soluble material from said fluid, wherein the first and second filter media create a physical non-soluble particle barrier at their interface for capturing non-soluble particles, that when retained at the interface, become soluble over time in the fluid, and are subsequently removed by the second filter media. At least one of the filter media can be fibrillated nanofibers that are loaded with finely subdivided media of powdered ion exchange resins. A third filter media may be placed between the first and second filter media to enhance capturing and dissolving the physical non-soluble particles.

Abstract: A method of manufacturing a water treatment apparatus having one or more chambers comprising the step of: filling at least one chamber with ion exchanger resin; wherein at least one ion exchanger resin is dry. Preferably, the dry ion exchange resin has a water content of 0-40 wt %, preferably 0-20 wt %, and more preferably 0-10 wt %, such that the volume of the dry ion exchange resin is 25-50 vol % less than the volume of the same ion exchange resin in a moist or wetted form. One form of suitable water treatment apparatus is an EDI apparatus comprising a plurality of chambers to form a stack, for the purification of the water. The present invention provides an easier method of filling of chambers compared with the use of wetted or moist resins, and ‘over filling’ of the cells of water treatment apparatus.

Abstract: A process for removing DOC (dissolved organic carbon) from a concentrated salt solution containing DOC by contacting the salt solution with a coagulant/flocculant such that the DOC becomes insoluble and removing the insoluble DOC from the salt solution.

Abstract: A process for selectively removing contaminant ions from a solution includes: a) contacting the solution with magnetic particles coupled to selectively chelating ion exchange functionality containing moieties prepared by: i) activating carboxyl groups on the selectively chelating ion exchange functionality containing moieties by tile formation of an acyl fluoride, and ii) reacting the acyl fluoride with the magnetic particles, the magnetic particles having a particle size of less than 10 microns; b) allowing the chelating functionality coupled magnetic particles to selectively bind one or more of the contaminant ions; and, c) extracting the chelating functionality coupled magnetic particles and contaminant ions from the solution by magnetic filtration.