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7628919 |
Method for treating water contaminated with methanol and boron
Systems and methods have been developed for treating the waste water contaminated with methanol and boron in addition to other contaminants. The systems and methods allow specifically for the...
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7618537 |
Membrane biofilm reactor method for reducing the concentration of oxidized contaminants in ground water
Apparatus and methods for water treatment are described, particularly for the simultaneous removal of nitrate, perchlorate, and other organic contaminates from contaminated water using a membrane...
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7604742 |
Soil conditioning products from organic waste
A process for conversion of organic wastes into biofertilizers such as soil conditioning agents of fertilizer grade, culture grade and soil grade is provided. Also provided is a process for...
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7597747 |
System and method for removing or reducing pollutants in exhaust gases
Gases containing smoke, pollutants and volatile organic compounds (VOC's) and a mixing liquid are blended in a swirling vortex into a liquid/gas mixture. Motive air and biological and/or chemical...
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7585414 |
Water treatment by activated sludge
The invention relates to a method of treating water with activated sludge containing micro-organisms. The method comprises the steps of: preparing an environmentally adapted biomass mixture by...
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7575685 |
Low oxygen biologically mediated nutrient removal
The present invention is directed to a substantially odorless biologically mediated treatment process for solid and liquid organic wastes. The present invention also provides for a novel nutrient...
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7560027 |
Method for treating wastewater and sludge
A method and an apparatus for treating organic wastewater and sludge which remarkably reduce the generated amount of sludge at a much lower running cost, and which reduce the size and the capacity...
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7550085 |
Bioventing remediation method
Bioventing methods create a bacterial treatment zone at a contaminated site by supplying a hydrocarbon food source to the treatment zone, and recirculating the hydrocarbon to the treatment zone....
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7534351 |
Pressurized biological waste water purification process
There is provided a reaction system capable of, in the feeding of liquid stored after gas-liquid mixing into waste water to be treated of a reaction tank, conditioning the interior of the reaction...
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7534350 |
Liquid medium treatment method and device
The invention relates to saturating various fluid media with oxygen, for example for aeration and can be used for the food industry, pharmaceutics, perfumery and cosmetics, physio- and...
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7531093 |
Process for the aerobic-thermophilic stabilization and disinfection of sludge
Disclosed is a method for the aerobic-thermophilic stabilization and decontamination of sludge, in which a) raw sludge having a dry substance concentration of 3 to 7 percent by weight is fed to a...
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7527736 |
Method for generating fracturing water
Systems and methods have been developed for reclaiming water contaminated with the expected range of contaminants typically associated with produced water in order to produce a treated water having...
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7517454 |
Method for treating wastewater containing active sludge
A method includes: disposing a filter into a body of wastewater containing active sludge, the filter including a supporting member having an outlet, and a filter media enclosing the supporting...
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7513998 |
“In-situ” ballast water treatment method
A method and system for ballast water treatment are provided. A vacuum is applied directly to an existing vent of a vessel's ballast water tank during the vessel's voyage. The applied vacuum is in...
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7510656 |
Waste water treatment method
Systems and methods have been developed for reclaiming water contaminated with the expected range of contaminants typically associated with produced water, including water contaminated with slick...
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7497949 |
System and method for oxygenating an aerobic sludge digester
A system and method for oxygenating an aerobic sludge digester is provided. The disclosed embodiments include an aerobic sludge digester tank or vessel having a mechanically agitated contactor...
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7497948 |
Method for remediation of soil and groundwater
A system and method to treat a site includes oxygenating or ozonating the site, adding nutrients, and maintaining a low bio-chemical-oxygen-demand-to-total-kjeldahl-nitrogen (BOD5:TKN) ratio....
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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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7491331 |
Methods for total nitrogen removal
A method and related apparatus for oxidation and reduction of a reduced aqueous nitrogen contaminant.
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7485231 |
Activated sludge process using downflow sludge blanket filtration
The present invention relates to an activated sludge process and apparatus for effectively removing organic matters, nutrient salts, particulates, etc. dissolved in sewage/waste water by operating...
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7481935 |
Waste water treatment process
The present invention describes improved methods and systems for treating waste water and solid waste, which may include the addition of catholyte and anolyte. The methods and systems of the...
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7479224 |
Purification plant to biologically purify waste water
A method of biologically purifying waste water, said method including the following steps in the following sequence a) an aeration step for stripping off H 2 S and other gases and for removing...
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7476322 |
Process and energy-efficient biological treatment system with filtration membrane
A membrane filtration system comprising one or more submerged ultrafiltration or microfiltration membrane assemblies at ambient pressure, with mixed liquor is discharged underneath each membrane...
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7476321 |
Method and a plant for waste water treatment
A method and a plant for waste water treatment include a method for purifying waste that has the steps of a) storing waste water; b) optionally removing phosphorous compounds; c) leading the waste...
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7476320 |
Process for groundwater remediation
A process for in situ groundwater decontamination within a subsurface region of earth includes: directing a liquid feed stream through a first conduit; injecting a treatment gas into the first...
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7473364 |
Multivalent metal ion management for low sludge processes
A method for managing multivalent metal ion concentrations in low-yield wastewater treatment processes. The method includes combining wastewater containing BOD with bacteria-laden sludge in a...
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7468135 |
Portable tank wastewater treatment system and method
A portable wastewater treatment system comprising a wastewater holding tank having an interior adapted to hold wastewater, and a generator positioned to provide ozone, oxygen, or a combination of...
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7462285 |
Wastewater purification method and apparatus
The invention described herein provides a novel means to biologically denitrify nitrogenous compounds in wastewater using a simultaneous reaction under aerobic conditions. To conduct this reaction...
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7459083 |
Method for controlling fouling of a membrane filter
A membrane bioreactor system includes one or more biological reactors and one or more membrane tanks with each membrane tank having one or more membrane filters. To control membrane fouling,...
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7455776 |
Method for mixing high viscous liquids with gas
A system and method for mixing high viscous liquids with gas is provided. The disclosed embodiments include a reactor or mixing vessel having a draft tube disposed therein, a gas injection...
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7455775 |
Water treatment method and apparatus
It is an object of the invention to provide an effective technique for detecting the quality of water with high accuracy. A representative water treatment apparatus includes an aerobic treatment...
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7452468 |
Method and apparatus for treatment of wastewater
Introducing a combination of suspended attached growth Medias and biological reactants into a sewage treatment process with or without additional reaction to improve and increase capacity of a...
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7449113 |
Controlling wastewater treatment processes
Methods and apparatus for continuing, automated control of wastewater treatment processes. In certain preferred embodiments, method and apparatus for control of aeration in suspended growth...
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7445714 |
Biological processing of animal waste
There is a biological composition and method of use. Included is a microorganism quantity, and a nutrient quantity which may have a supplement, a short-term nutrient and a long term nutrient. The...
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7442307 |
Method and apparatus for the biological activated sludge treatment of wastewater
The equipment has a main reaction (I) and an anterior reactor (II), as well as facilities for feeding in untreated sewage, removing cleaned water and sludge and aerating the wastewater entered into...
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7438813 |
Ammonia oxidation and pipe denitrification
In a biological wastewater treatment system, the addition of an intermittently aerated second bioreactor to accomplish ammonium oxidation to predominately nitrite and then to achieve...
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7431840 |
Denitrification process
A process and system for denitrification of wastewater. The process includes the steps of measuring an influent flow rate, measuring influent concentrations of nitrates, nitrites, and dissolved...
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7431839 |
Low oxygen biologically mediated nutrient removal
The present invention is directed to a substantially odorless biologically mediated treatment process for solid and liquid organic wastes. The present invention also provides for a novel nutrient...
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7419595 |
Multiple barrier biological treatment process
The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating...
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7419594 |
Apparatus and method for controlling biomass growth in suspended carrier bioreactor
A bioreactor configured to contain an aqueous suspension of biomass and media is provided. The invention includes a lift tube disposed within the vessel, the lift tube having an inlet disposed at...
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7407584 |
Regulating air velocity continuously injected into biological water treatment reactor
A method of treating wastewater wherein the biomass associated with the wastewater is subjected to simultaneous nitrification and denitrification in a single reactor. The method entails directing a...
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7407583 |
In-situ groundwater nitrification and de-nitrification remediation system
A method of in-situ groundwater nitrification, by: extracting groundwater from the ground; adding oxygen to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting...
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7407582 |
Combination activated sludge—ballasted flocculation process
A method and system for treating water or wastewater to remove both soluble BOD and suspended solids. The method entails directing first and second water or wastewater streams to a treatment system...
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7407577 |
Tertiary filter septic system and method
This application relates to an apparatus and method for treating effluent. The effluent may be derived, for example, from an upstream secondary treatment plant. The apparatus employs a plenum...
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7402248 |
Active biological contactor (ABC); a modular wastewater treatment system
A method and system for wastewater treatment includes flowing a quantity of a wastewater into a first microbubble chamber having a plurality of diffusers for injecting microbubbles into the...
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7387733 |
System and method for processing organic waste material
A method is provided for maintaining a biomass disposed on a substrate in a bioreactor tank. The bioreactor tank has an inlet and an outlet in fluid communication with a waste treatment system...
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7384554 |
Methods for total nitrogen removal from waste streams
A method and related apparatus for oxidation and reduction of a reduced aqueous nitrogen contaminant, as can be embodied by a system comprising nitrifying and denitrifying bacteria and contacting...
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7378023 |
Method of improving membrane bioreactor performance
Cationic polymers having a molecular weight greater than about 200,000 can be added to the activated sludge in an MBR for industrial wastewater treatment for reasons, which include: conditioning...
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7371323 |
System and method for reducing wastewater contaminants
A wastewater treatment system. Toilet, kitchen, commercial, and industrial process waste is segregated from the total wastewater stream and treated in order to reduce the total nitrogen,...
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7344643 |
Process to enhance phosphorus removal for activated sludge wastewater treatment systems
Contaminated wastewaters comprising biochemical oxygen demand (BOD), nitrogen and phosphorus are treated by an activated sludge process. The process utilizes an activated sludge tank, a...
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