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7473370 |
Water disinfection method using simultaneous multiple disinfectants
A water disinfection system using simultaneous multiple disinfectants includes a completely stirred tank reactor (CSTR) and a contact basin or clearwell acting as a plug flow reactor (PFR). The...
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7459087 |
Water treatment
A method of treating water to remove fluoride ions from the water, thereby to reduce the dissolved fluoride content of the water, is provided. The method includes, in a contacting step, contacting...
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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...
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7381334 |
Method for inhibiting microbial growth in liquid nutrients
A method for making a web having a metal-ion sequestering agent and treating a liquid using the web. The method of making the web includes electrostatically providing at least one metal-ion...
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7361280 |
Catalytic activated carbon for removal of chloramines from water
This application discloses a method for enhanced removal of chloramines from a chloramines-containing fluid media by contacting said media with a catalytic activated carbon characterized by having...
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7361279 |
Removing metals from solution using metal binding compounds and sorbents therefor
Removing metals from metal containing acidic solutions, such as contaminated waters and industrial wastewaters, is described. An amphipathic, heterocyclic, metal-coordinating compound (an...
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7320758 |
Method for control of microorganisms in metalworking fluid
A method for disinfecting microorganisms in metalworking fluids without leaving behind unacceptable amount of chemicals in the treated fluids. The method comprises passing the fluid in a...
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7300589 |
Process for removing arsenic from aqueous streams
Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3...
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7273558 |
Method and device for reducing scale formation and/or corrosion in systems which conduct liquids
The invention relates to a method and a device for reducing scale formation and/or corrosion in systems which conduct liquids or are in contact with liquids. According to the invention, this is...
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7273556 |
Method for treating water containing manganese
The invention concerns a method for treating water for human consumption, so as to eliminate manganese and possibly other metals comprising steps which consist in: causing said water to pass at...
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7247242 |
Arsenic removal from water
Methods for removing arsenic from water by addition of inexpensive and commonly available magnesium oxide, magnesium hydroxide, calcium oxide, or calcium hydroxide to the water. The hydroxide has a...
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7247240 |
Method for treating waste water
The invention provides a method for treating waste water wherein organic and inorganic substances in waste water can be treated at high levels regardless of the concentration, and a unit itself can...
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7195923 |
Ratiometric determination of glycated protein
The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the...
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7160430 |
Electrochemical treatment of ammonia in waste-water
In a sewage treatment plant, dissolved ammonium is extracted from the waste-water stream, and is transferred to a body of secondary water. The secondary water is passed through an electrolysis...
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7147782 |
Method and apparatus for metal removal by ion exchange
The present invention provides a method for selectively removing metal ions of interest from a solution ( 12 ), such as the wastewater from a chemical mechanical polishing process. The method...
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7141173 |
In situ treatment process to remove metal contamination from groundwater
The present invention provides a process for enhancing the metal contaminant sorption capacity of mineral compounds within a groundwater-bearing formation by manipulating the pH and the surface...
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7105093 |
Processing set and methods for processing and treating a biological fluid
Apparatus, systems and methods are disclosed for treating a biological fluid with light. A container of biological fluid is introduced into a fluid treatment chamber where it is contacted with...
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7048857 |
Method and apparatus for metal removal ion exchange
The present invention provides a method for selectively removing metal ions of interest from a solution ( 12 ), such as the wastewater from a chemical mechanical polishing process. The method...
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7008543 |
Use of chlorine dioxide and ozone for control of disinfection by-products in water supplies
A method of oxidation or pathogen inactivation in water supplies using the combination of treatments of chlorine dioxide and ozone in the sequential steps prior to filtration and distribution....
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6991736 |
Structure and process for continuously treating dental unit water
The invention pertains generally to dental units (e.g., a high-speed dental handpiece ( 11 ), an ultrasonic scaler ( 13 ) and an air/water syringe ( 12 )) connected to a water supply that provides...
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6908559 |
Process for treating a solid-liquid mixture
A process for treating a solid-liquid mixture by cavitation to decompose at least some contaminant associated with the solid particles, the contaminant either being absorbed into the pores of the...
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6821435 |
Water purifying system
The invention relates to a system for water purification comprising at least two units, of which the first unit comprises at least one filter unit ( 1 ) which consists of a container ( 2 )...
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6790364 |
Process for stripping amine borane complex from an electroless plating solution
A process for separation and environmentally benign disposal of amine borane complexes includes adsorbing amine borane complex onto a solid support, treating the adsorbed amine borane complex with...
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6790363 |
Method of treating arsenic-contaminated waters
The present invention is directed to an adsorbent for removing arsenic species from ground water and/or surface water systems. Such adsorbent removes both As(III) and As(V), thereby providing...
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6787041 |
Carbon dioxide enhanced complex-adsorption process for metal or metalloid removal from water
A method of removing metal or metalloids, arsenic in particular, from groundwater or another source of contaminated water. The method comprises providing a water source, contacting the water source...
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6780329 |
Treating an aquifer or soil formations
A microporous diffuser includes a first elongated member including at least one sidewall having a plurality of microscopic openings. The sidewall defines an interior hollow portion of the member....
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6770205 |
Method for treatment of pollutants using iron-impregnated, carbon-coated, silica sand
A method for pollutants using an iron-impregnated, carbon-coated silica sand with the iron containing between to and 16 percent silicon. The invention provides an improved method for performing...
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6767468 |
Method to remove uranium/vanadium contamination from groundwater
A process for removing uranium/vanadium-based contaminants from groundwater using a primary in-ground treatment media and a pretreatment media that chemically adjusts the groundwater contaminant to...
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6755973 |
Waste water treatment process for animal processing contaminant removal
A process and system for removing animal processing contaminants and fats, oils, and greases from large volume quantities of waste water. In the process, a waste water stream containing the...
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6749756 |
Reaction and separation methods
A method of separating compounds that includes the steps of: tagging at least a first organic compound with a first tagging moiety to result in a first tagged compound; tagging at least a second...
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6746609 |
Cooling tower water treatment
A process for treating cooling tower water in a system which includes a recirculated evaporative cooling water stream and a source of make-up water. A side stream is taken off of the source of...
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6745903 |
Methods for the on-line, on-demand preparation of sterile, water-for-injection grade water
A new method is described to produce large volumes of low cost sterile, Water-for-Injection (WFI) grade water on-line, on-demand from potable water in order to meet the needs of dialysis therapies...
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6736976 |
Fluid treatment process
A fluid treatment device for reducing the level of a chemical compound in a fluid. The device comprises: a fluid inlet; a fluid outlet; a flow-through fluid treatment zone having comprising: a...
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6712976 |
Dual-action decontamination system
Hydrophobic polymer particles (e.g., granules or fragments) employed as filter media, e.g., for filtering runoff water, include an antimicrobial compound on exterior surfaces and can reduce...
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6706194 |
Method for removal of chloramines from drinking water
This application discloses a method for enhanced removal of chloramines from a fluid media by contacting said media with a catalytic activated carbon. The catalytic activated carbons used in the...
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6669849 |
Water treatment process
The present invention relates to water treatment, in particular to a process for the removal of dissolved organic carbon from water. The process includes the following steps, adding an ion-exchange...
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6599428 |
Filter system for removing contaminants from water and method thereof
An improved filter device for the removal of contaminants from water and method of using same. The present invention comprises an outer housing having an inlet at one end for water to be purified...
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6582608 |
System for the removal of organic contaminants from water, air and soil
Discrete non-clumping mechanically stable geometric alloyed material shapes having about 55-95% by weight thermoplastic elastomer and about 5-45% thermoplastic polymer and about 0-12% by weight...
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6521131 |
Combined oxidation and chelating adsorption system for removal of mercury from water
The disclosed invention relates to a method of disposing of mercury-containing wastewater containing mercury-complexing materials, comprising the steps of treating wastewater containing mercury...
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6514413 |
Method of drinking water disinfection
A method for disinfecting and purifying tap water and untreated water using a composite, bactericidal adsorption material as a filter. The method provides efficient and reliable disinfection, with...
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6491824 |
Method for processing returns from oil and gas wells that have been treated with introduced fluids
A method for resolving sludge/emulsion formed as a result of adding introduced fluids to oil and gas wells. The method comprises adding a water-dispersible emulsion breaker and/or adjunct additives...
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6432312 |
Closed system for rearing aquatic life
The present invention provides improvements for indoor closed systems used to raise aquatic life, along with methods to overcome the current problems associated with such indoor closed systems. The...
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6425284 |
Method and apparatus for gas-assisted suppressed chromatography
Ionic species in an aqueous sample stream are analyzed by (a) chromatographically separating the ionic species in the presence of an aqueous eluent solution comprising electrolyte to form a...
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6419831 |
Water purifier method
Ozone is generated and combined with water. The combined water and ozone are then mixed to provide a substantially homogeneous mixture which subsequently is transported along a confined flow path...
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6348155 |
Water purification system and method
A system and method for purifying water in large quantities for drinking. The system comprises a housing having a water inlet, filtering means connected to the water inlet for filtering sediment...
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6346195 |
Ion exchange removal of metal ions from wastewater
A novel process and apparatus are disclosed for cleaning wastewater containing metal ions in solution, hydrogen peroxide, and high solids, e.g., greater than about 50 mg/l particulate solids. A...
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6344146 |
Portable water purification device
A portable, self-contained, fully integrated water purification device which includes a receptacle modified to accommodate a filtration assembly for purifying water, and to store water following...
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6245389 |
Method for circulating electroless nickel plating solution
A method of circulating an electroless nickel plating solution is characterized in that the system comprises the following process steps effected in the following order: (A) a step of electrolessly...
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6214233 |
Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water
A waste water stream containing cyanide bearing compounds and heavy metals such as copper, silver, nickel, iron and the like is directed from a source after pH adjustment to a first tank containing...
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6205708 |
Treatment material pumping system
A remediation-assisting material or structure is arranged in the vicinity of a root system and the hole prepared for the root system. The hydraulic gradient created by the root system draws...
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