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7632412 |
Method for chemistry control in cooling systems
A method for controlling a cooling water tower comprising: providing a cooling tower system, which includes a recirculated evaporative cooling water stream, a source of make-up water, an...
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7572378 |
Recycled irrigation water treatment system including reverse osmosis
A process for irrigation involves monitoring reclaimed water, and treating it when necessary. The reclaimed water is tested with monitors to obtain results for water quality characteristics,...
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7566400 |
Wastewater chemical/biological treatment method and apparatus
A chemical/biological wastewater treatment plant apparatus and treatment method employing rapid sludge chemical dewatering technology in conjunction with an environmental biological system for...
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7553412 |
Method for continuous on-site monitoring and treatment of water
A portable system for on-site monitoring and treatment of water comprising a protective enclosure adapted to be positioned proximate a site of collected water, an internal fluid flow system...
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7553424 |
Method for controlling sterile water production device
In controlling a sterile water production device, if pH of sterile water is smaller than a preset pH, an additional aqueous hypochlorite solution is injected into the sterile water to increase the...
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7507323 |
Self-cleaning chlorine generator with pH control
A water treatment system includes a circulation pump and an electrolytic chamber in fluid communication with a main body of water. Electrolytic plates within the electrolytic chamber generate...
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7494588 |
Wastewater purification system
An object of the present invention is to provide a control method, for a wastewater purification system, where the status of a wastewater purification system employing a batch activated sludge...
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7481940 |
Biomass treatment of organic waste or water waste
A method, system, apparatus and program for effecting the decomposition of organic waste material comprises: providing a treatment tank for decomposition of organic waste material, the treatment...
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7476319 |
Method and apparatus for continuously controlling denitrification in variable nitrogen loads in wastewater
The invention is a method and an apparatus for continuously controlling denitrification in wastewater purification in a sewage treatment plant having at least one denitrification stage under...
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7425271 |
Method for treating sludge
Sludge can be treated by placing it in a carrier sized for bulk shipment of sludge by road or by rail. An antipathogenic substance such as lime is mixed into the sludge located in the carrier in...
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7422692 |
Raw influent treatment processes eliminating secondary biological treatment
Presently no chemicals are added in the pulp/paper mills wastewater treatment. There is a loop hole with the Biological Oxygen Demand test utilized. Regulators depend on the Biological Oxygen...
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7416668 |
Wastewater chemical/biological treatment plant recovery apparatus and method
A chemical/biological wastewater treatment plant method and apparatus employing rapid sludge chemical dewatering technology in conjunction with an environmental biological system for treating the...
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7404905 |
Water treatment system, apparatus and method
The invention relates to a water treatment apparatus, method and system for use in the treatment of wastewater or contaminated water, the apparatus including an energisable material or base...
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7374694 |
Method for remineralizing raw water
The invention relates to a method and installation for treating water for human consumption, for an industrial process, for agricultural purposes or for other purposes. The method used to...
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7326340 |
System for controlling sulfide generation
Systems and methods for reducing odors utilizes oxidation-reduction potential to characterize the quality of water or wastewater and control addition of a species thereto that reduces or inhibits...
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7326352 |
Water treatment system
A water treatment system for reducing the level of bacteria in a flow of water by creating an environment favorable for aerobic bacteria and unfavorable for anaerobic bacteria is disclosed. The...
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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...
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7294276 |
Process for preparing fluoropolymer dispersions
A process to substantially remove the fluorinated anionic surfactants from fluoropolymer dispersions comprising the following steps:
a) addition to the fluoropolymer dispersion of an anionic...
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7285207 |
Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater
A method and apparatus for treating wastewater streams by adding, either separately or as a mixture, a nitrate containing compound and an alkaline material in an amount sufficient to achieve a...
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7273561 |
Method for determining the chemical dosage required to reduce sulfides in wastewater to acceptable levels
An apparatus and method of determining chemical dosage required to reduce sulfides in wastewater includes providing a headspace apart from the wastewater. The temperature of the wastewater and the...
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7261821 |
Process for treating an aqueous system with chlorine dioxide
This invention relates to an automated process for efficiently treating an aqueous system with chlorine dioxide. The process results in high efficiency yields of chlorine dioxide on a continuous...
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7208117 |
Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system
This invention relates to an automated process to inhibit corrosion of the metal surface of an inactive boiler containing water.
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7169297 |
pH adjuster-based system for treating liquids
The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of...
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7160442 |
Apparatus for reduction of biological wasted sludge
The apparatus for reducing biological wasted sludge includes a sludge hydrolysis reactor, a sludge neutralization reactor and a membrane bioreactor (MBR). The method of the present invention...
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7157008 |
Apparatus and process for water conditioning
A conditioning process and equipment are provided for removing hardness from water circulated in a system, such as an evaporative cooling system. A sidestream from such system is routed to a...
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7153437 |
Controlling corrosion in process water systems
A system for controlling the pH of the process water used in conjunction with formaldehyde-free binder composition for glass fiber products. A base solution is introduced into the process water...
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7153473 |
Hemostatic system and components for extracorporeal circuit
A method and system for use in the course of extracorporeal blood flow, e.g., cardiopulmonary bypass, dialysis, and angioplasty procedures, in order to reduce or minimize inflammation, excessive...
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7135118 |
Method for treatment against corrosion and depositions in domestic supply water stallations
The invention concerns a method for preventive treatment of corrosion, oxidation and/or depositions in domestic supply water distribution circuits, comprising steps which consist in: a diagnosis...
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7087172 |
Methods for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater
A method and apparatus for treating wastewater streams by adding, either separately or as a mixture, a nitrate containing compound and an alkaline material in an amount sufficient to achieve a...
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7060189 |
Method and apparatus for recycling wash chemicals
The invention relates to a method and apparatus for recycling a wash solution used in powder coating which uses filters. The invention also relates to methods and apparatuses for recycling wash...
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7052599 |
Method and apparatus for reuse of abrasive fluid used in the manufacture of semiconductors
An apparatus and method recycles the abrasive fluid or slurry effluent used in the polishing step in the manufacture of semiconductors. Agglomerations of abrasive grains built up in the slurry...
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6846421 |
Filtering method and filter chamber sealing arrangement
A liquid filter method includes use of a filter media belt enclosed by sealably mated cover pan and floor pan defining a vacuum chamber connected to a sealed clean liquid tank, with clean liquid...
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6841078 |
PH reduction system and method for concrete plant discharge
A water treatment system and method reduces the pH level of a waste stream from an unacceptably high level with maximum efficiency and safety, and minimum costs and labor. The system includes a pH...
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6797179 |
Method for removing dissolved metals from wastewater by electrocoagulation
A system is provided for removing dissolved metals from industrial wastewater by electrocoagulation. The system includes an electrocoagulation reactor with a DC power supply having an insulation...
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6773600 |
Use of a clathrate modifier, to promote passage of proteins during nanofiltration
The invention relates to the field of protein purification and the recovery of large proteinaceous material through small, nanometer sized, pore exclusion filters for removal of contaminants such...
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6767472 |
Catalytic fixed bed reactor systems for the destruction of contaminants in water by hydrogen peroxide and ozone
A process for the treatment of an aqueous media having contaminants therein, including adding hydrogen peroxide to the aqueous media, exposing the aqueous media to a catalytic environment, removing...
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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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6692641 |
Algal and nutrient control method for a body of water
A system to control nutrients, suspended algae, and filamentous algae in lakes, ponds, and estuaries includes a structure for containing macrophytic vegetation. One embodiment segregates a column...
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6652752 |
Biodegradation of oil sludge
A method for the biodegradation on an oil-based sludge comprising a mixture of petroleum hydrocarbons is disclosed. The method comprises forming an aqueous solution in a reactor of an oil-in-water...
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6645385 |
System and method for removal of fluoride from wastewater using single fluoride sensing electrode
A system for removing fluoride from wastewater is provided. The system comprises a reaction tank for processing said wastewater by adding calcium salts, a filtration tank for removing the...
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6623647 |
Methods of optimized control of multiple oxidizer feedstreams
This invention is directed to a method and apparatus for controlling and optimizing the feed of two or more oxidizers to an aqueous stream, thereby providing a synergistic effect. The system...
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6589429 |
Method of treating industrial wastewater
A method of treating industrial wastewater using casein includes an optimization step whereby treatment operating variable are optimized through statistical methods on experimental designs.
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6569334 |
METHOD OF HIGH-CONCENTRATION CULTURE OF NITRIFYING BACTERIA OR DENITRIFYING BACTERIA CONTAINED IN ACTIVATED SLUDGE, CULTURE PROMOTER TO BE USED IN HIGH-CONCENTRATION CULTURE METHOD OF NITRIFYING BACTERIA, AND METHOD OF WEIGHT LOSS TREATMENT OF ACTIVATED SLUDGE
A method for incubation of nitrifying bacteria in a high concentration which are contained in small amount in activated sludge includes subjecting the activated sludge to nitrification and...
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6569336 |
Method, device and use of said method for biological elimination of metal elements present in an ionized state in water
The method, in which the water to be treated is partly oxygenated by a specific aeration carried out before percolation through a biofilter having a bacteria-supporting bed of filtering material,...
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6533942 |
Cooling tower water cleaning system
A cooling tower water purification system uses an electrical cleaning method by passing water over or through an anode and a cathode. The pH of the water is monitored and adjusted using injected CO...
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6482325 |
Apparatus and process for separation and recovery of liquid and slurry abrasives used for polishing
Abrasive components and clear fluids are separated from an aqueous chemical mechanical slurry used for planarization of semiconductor materials, to permit the reuse of the clear liquid effluent in...
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6409926 |
Air and water purification using continuous breakpoint halogenation and peroxygenation
A process for optimizing the rate of oxidation using a combination of halogen, e.g. chlorine donors and peroxygen, e.g. potassium monopersulfate. The peroxygen compound elevates the...
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6372146 |
Method of treating agricultural lagoons in confined animal feeding operations
An agricultural lagoon and manure treatment system to maintain the lagoon and lagoon water in a more useable condition through the use of sulfuric acid to treat the system components of confined...
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6368511 |
Conditioning method for dehydrating clarification sludge
A process is described for dewatering sewage sludge consisting of the combination of an acidic oxidative preconditioning with an inorganic post-conditioning, in which case the preconditioning...
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6334957 |
Method for reduction of flow resistance in pipes and ducts
This invention relates to a method and an apparatus for reduction of flow resistance in pipes and ducts where a fluid or a powder is flowing in single or multiphase. In the method, the flow...
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