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| Number | Title | Issue Date |
| 7988860 | Superabsorbent-containing web that can act as a filter, absorbent, reactive layer or fuel fuse The web of the invention can comprise a super absorbent layer that can act as an moisture sensitive fuel shut-off valve, absorbent, adsorbent or reactant. The web of the invention can comprise a super absorbent fabric or layer made of a superabsorbent particle or fi... | 08/02/2011 |
| 7955507 | Functionalized green filtration media for passive underground drainfield for septic tank nutrient removal Methods, systems and compositions for a green sorption media for bioretention soil amendments in drainfields for on-site waste water systems filled with the green sorption media to foster an anaerobic or anoxic environment saturated. The green sorption media include... | 06/07/2011 |
| 7871524 | Method for removing merury and/or arsenic from water using a silane coupling agent reacted organoclay The use of a coupling agent containing a mercapto, disulfide, tretrasulfide and/or polysulfide end group provides a mercury removal media having increased reactivity, stability, and mercury removal ability. The mercury removal media described herein is prepared by r... | 01/18/2011 |
| 7524421 | Method of forming alginate particles in an aqueous solution containing metal ions In some embodiments, a system may reduce metal compounds from water. A system may include alginate particles in a housing. The alginate particles may be formed by directly adding alginate granules to an aqueous solution comprising metal ions, such as calcium ions. | 04/28/2009 |
| 7455780 | Method of treating stormwater runoff and domestic waste with high carbon ash A method of treating domestic wastewater wherein the wastewater is directed through a high carbon ash particulate. Contaminants such as phosphorus, nitrogen, BOD and COD can be removed. In addition, treatment of the domestic waste with ash will raise the pH of the w... | 11/25/2008 |
| 7438818 | Cross-linked polyimine and use thereof for the immobilization of acidic or electrophilic compounds present in a solution The invention relates to a process for immobilizing acidic or electrophilic compounds in a solution. The process is characterized in that it consists in bringing a crosslinked polyimine, which is insoluble in the medium and in which the imino groups are —NH-groups... | 10/21/2008 |
| 7431842 | Method of using silicon carbide for removal of adventitious agents A method of using silicon carbide for removing adventitious materials such as endotoxins, prions, viruses and bacteria from water, buffers, aqueous solutions or biological preparations of DNA or proteins, or any combination thereof. The present invention provides fo... | 10/07/2008 |
| 7419601 | Nanomesh article and method of using the same for purifying fluids Disclosed herein are articles for removing contaminants from a fluid, such as a liquid or gas, the article comprising carbon nanotubes, which comprise at least one molecule or cluster attached thereto or located therein, wherein the carbon nanotubes are present in t... | 09/02/2008 |
| 7399416 | Reactive filtration In one embodiment, a reactive filtration method includes continuously regenerating a reactive filter media while simultaneously filtering contaminants from fluid flowing through the filter media. In one embodiment, regenerating the reactive filter media comprises mi... | 07/15/2008 |
| 7393454 | Elimination of metal ions from aqueous effluents Method for the elimination of metal ions from aqueous media, such as zinc, lead, chrome, copper, iron, aluminium, manganese, cadmium, cerium or silver and mixtures of the metals present in a trace or ultratrace state in aqueous effluents, by adsorption on a solid ch... | 07/01/2008 |
| 7390414 | Regeneration of chemically treated zeolite Systems and methods are provided for the removal and disposal of arsenic from an aqueous medium. The systems and methods include the removal of arsenic from a source by contact with either a chemically treated natural or synthetic zeolite, for example a ferric-loade... | 06/24/2008 |
| 7381333 | Treatment of water flowing in a horizontal conduit Trace levels of dissolved toxic species are removed from water flowing horizontally in a conduit equipped with overhead debris-excluding structure by suspending from the overhead structure elongated absorbent structures in the form of porous bags which confine parti... | 06/03/2008 |
| 7374684 | Method of separating components in a sample using silane-treated silica filter media The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups h... | 05/20/2008 |
| 7361275 | Use of derivatized nanoparticles to minimize growth of micro-organisms in hot filled drinks A method and article for removing a selected metal-ion from a solution. The method included providing a container for holding a liquid, the container having an internal surface having a metal-ion sequestering agent provided on at least a portion of the internal surf... | 04/22/2008 |
| 7357863 | Container for inhibiting microbial growth in liquid nutrients A fluid container and method for inhibiting the growth of microbes in liquid nutrient in a container, the container having an interior surface having a metal-ion sequestering agent and antimicrobial agent for inhibiting growth of microbes in the liquid nutrient.... | 04/15/2008 |
| 7347946 | Method for inhibiting microbial growth in liquid nutrients A method for inhibiting growth of microbes in a liquid having a pH equal to or greater than about 2.5 by using a filter bed assembly or filter for filtering the liquid having a metal-ion sequestering agent for removing designated metal ion from the liquid. The liqui... | 03/25/2008 |
| 7338603 | Process using rare earths to remove oxyanions from aqueous streams Oxyanions of various contaminant elements, such as chromium, antimony, molybdenum, tungsten, vanadium and uranium, are removed from water and other aqueous feeds by treating the feed with (1) a sorbent comprising one or more rare earth compounds, usually mixed or su... | 03/04/2008 |
| 7335246 | Contaminant adsorption and oxidation via the fenton reaction Contaminated fluids are treated by adsorbing contaminant onto a sorbent to concentrate the contaminant and then oxidizing the contaminant via the Fenton and related reactions. Iron is attached to the sorbent or can be added in solution with an oxidant. Both systems,... | 02/26/2008 |
| 7335307 | Method for removing contaminants from water using ruthenium based contaminant sorbents and oxidizers Ruthenium compounds, either alone or in combination with other remediating compounds, can be used to oxidize, remove and sequester contaminants in water and soil or sediments. ... | 02/26/2008 |
| 7332088 | Method of water purification The invention provides a method for the removal of biological species, such as Cryptosporidium, from water using aluminium based media which contains surface Al—OH groups. ... | 02/19/2008 |
| 7332002 | Low sulfur coal additive for improved furnace operation The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The... | 02/19/2008 |
| 7332090 | Process for the removal of mercury from solutions contaminated with mercury Mercury is removed from solutions contaminated with mercury by filtration through a carbon filter consisting of electrode graphite. ... | 02/19/2008 |
| 7332091 | Process for treating storm water An insert for a storm water treatment system includes an elongated baffle member that is configured to be mounted within a substantially upright storm water drain basin so as to separate the interior space of the drain basin into a first compartment that communicate... | 02/19/2008 |
| 7329391 | Microfluidic device and material manipulating method using same Microfluidic devices for manipulating relatively dense materials, such as colloidal rod particles, are provided. Microfluidic devices for separating a denser first material from a less-dense second material are provided. Methods of manipulating a relatively dense fi... | 02/12/2008 |
| 7326346 | High capacity regenerable sorbent for removal of arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/05/2008 |
| 7320757 | Body fluid processor enabling direct hemoperfusion A safe and practically useful body fluid processor whereby blood taken out from a patient can be directly processed, characterized by having a favorable passage of the blood cell and showing an extremely low risk of the generation and leakage of microparticles. Name... | 01/22/2008 |
| 7314569 | Treatment of arsenic-contaminated water using akaganeite adsorption The present invention comprises a method and composition using akaganeite, an iron oxide, as an ion adsorption medium for the removal of arsenic from water and affixing it onto carrier media so that it can be used in filtration systems. ... | 01/01/2008 |
| 7311844 | Method of treating stormwater runoff and domestic waste with coal ash A method of treating wastewater, and more particularly stormwater runoff or domestic waste, wherein the wastewater is directed through a high carbon ash particulate. Contaminants such as phosphorus, nitrogen, BOD and COD can be removed. In addition, treatment of the... | 12/25/2007 |
| 7311839 | Removal of biological pathogens using surfactant-modified zeolite Systems and methods are described for removing biological pathogens using surfactant-modified zeolite (SMZ). A method for removing biological pathogens from a fluid or a fluid-based gel includes filtering the fluid or fluid-based gel using SMZs. A method for removin... | 12/25/2007 |
| 7311842 | Lignocellulose-based anion-adsorbing medium (LAM) and process for making and using same for the selective removal of phosphate and arsenic anionic contaminants from aqueous solutions A lignocellulose-based anion-adsorbing medium (LAM) and process for making and using same for selectively removing phosphates and arsenic contaminants from aqueous solutions is disclosed. Making the LAM comprises (a) dissociating cations such as Fe and Al, from thei... | 12/25/2007 |
| 7309676 | Remover for heavy metals contained in water A removing agent for heavy metal ion in water which comprises synthetic zeolite, wherein 10 mol % or more of a total amount of exchangeable cation is substituted with magnesium ion and 60 mol % or more thereof is substituted with magnesium ion and calcium ion, and a... | 12/18/2007 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7300586 | pH stable activated carbon An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound.... | 11/27/2007 |
| 7301066 | Method of making and using nanoscale metal Methods of treating ground water and methods for reducing contaminants (e.g., chlorinated compounds in contaminated ground water) to harmless compounds in the presence of an elemental metal treatment composition. Said methods comprise injecting a treatment solution ... | 11/27/2007 |
| 7291266 | Composite filter and method and apparatus for producing high purity water using the composite filter To compose a composite filter for obtaining water having a high purity usable as water for life and water for medicine from water in which impurities are mixed. Furthermore, to compose an apparatus for obtaining water having a high purity using the filter. Moreover,... | 11/06/2007 |
| 7288201 | Methods for removing moisture from hydrogen halides A composition comprising a magnesium halide coated macroporous carbonaceous substrate is provided for effecting moisture removal from a hydrogen halide fluid. Moisture removal is effected by intimately contacting the hydrogen halide fluid with the magnesium halide c... | 10/30/2007 |
| 7285219 | Chromatographic separation member and method There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest ... | 10/23/2007 |
| 7282153 | Method for removal of arsenic from water A method for removing arsenic from water by contacting water with a strong base anion exchange resin comprising at least one metal ion or metal-containing ion whose arsenate salt has a Ksp no greater than 10−5, provided that the metal is not ... | 10/16/2007 |
| 7279106 | Adsorbent and method for adsorbing a chemokine in body fluid A device for body fluid purification, comprising a container having an inlet and an outlet for a fluid and a means for preventing an adsorbent from flowing out of the container and an adsorbent charged in the container, the adsorbent comprising a spherical hydrogel,... | 10/09/2007 |
| 7258786 | Container for inhibiting microbial growth in liquid nutrients A fluid container and method for inhibiting the growth of microbes in liquid nutrient in a container, the container having an interior surface having a metal-ion sequestering agent for removing a designated metal ion from the liquid nutrient for inhibiting growth of... | 08/21/2007 |
