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7531085 |
Device for purifying anaerobic biological wastewater
The invention relates to a device for purifying anaerobic biological wastewater, which wastewater is fed in through a feed pipe ( 4 ) and the purified wastewater and built-up gas are removed...
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7488413 |
Waste water treatment plant and method
A waste water treatment plant includes a treatment chamber or reactor ( 26 ) containing a plurality of buoyant sludge carriers ( 38 ). In the base of the treatment chamber ( 26 ) is a biofilm...
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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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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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7422684 |
Method and apparatus for sanitizing water dispensed from a water dispenser having a reservoir
A method and apparatus of sanitizing drinking water to be dispensed from a water dispenser having a reservoir includes the steps of providing the ozone gas generator that generates an ozone gas...
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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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7374672 |
Filter device comprising integral centrifugal separation
A filter apparatus having a filter membrane, a main body, a supply channel running perpendicular to the surface of the filter membrane and a gap running between it and the filter membrane, for the...
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7338595 |
Flow-through tank for water treatment
A fluid treatment system includes at least one flow-through tank, a treatment device configured for treating at least one of an untreated fluid and a treated fluid and providing the treated fluid...
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7332083 |
Process and device for biological treatment of a suspension in a bioreactor
A process and a device for biological treatment of a suspension in a bioreactor is described, which is made especially as a loop reactor with a central guide pipe ( 2 ) and gas injection ( 3 ). In...
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7323107 |
Apparatus and method for the treatment of waste
A waste treatment system suitable for domestic use and capable of producing water suitable for recycling within the household. The system includes a bioreactor ( 30 ) and a decomposition chamber (...
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7311833 |
Zero excess sludge membrane bioreactor
An inclined plate coupled membrane bioreactor for treating feed water having excessive level of nutrients in particular chemical oxygen demand and total nitrogen and suspended solids has an aerobic...
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7309432 |
System and method for eliminating sludge via ozonation
A system and method for the treatment and reduction of sludge via ozonation in a wastewater treatment process is disclosed. The sludge treatment system comprises: a sludge ozonation reactor coupled...
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7303686 |
Method of separating suspension, in particular for waste water treatment, and an apparatus for performing the same
Arrangement for separating suspension, in particular for treatment of wastewater. A flocculating suspension is separated from the liquid by filtration in a fluidized layer in a sludge blanket,...
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7300578 |
Apparatus for recycling of oil-based drilling fluid contaminated with water and water contaminated with oil based drilling fluid
A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The...
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7294254 |
Wastewater treatment system
A localized wastewater treatment system for biologically treating wastewater. Raw wastewater flows into a first operational area where a majority of solid material in the wastewater separates out...
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7276165 |
Method and plant for biological treatment of aqueous effluents for purification thereof
The invention relates to a method for the biological treatment of effluents contaminated with impurities of urban or industrial origin, characterised in employing a single aeration tank ( 1 ) with...
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7258788 |
Circular clarifier apparatus and method
This application relates to a circular clarifier for separating and removing separable matter, such as suspended solids, from a liquid. The invention may be used, for example, for separating return...
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7238284 |
Apparatus for processing alkaline solution
An apparatus for processing an alkaline solution includes a storage tank storing the alkaline solution to be processed; a processing unit sucking a foam phase disposed on the liquid surface level...
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7175764 |
Method and device for purifying wastewaters
The invention relates to a method for purifying wastewaters, particularly wastewaters produced in the paper industry, involving the following steps: a) aerobic clarification of the wastewater using...
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7156985 |
Bioreactor system having improved temperature control
A bioreactor system having improved temperature control wherein heat is directly removed from the bioreactor liquid to maintain temperature balance in the bioreactor. The present invention also...
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7153431 |
Method and system for utilizing activated sludge in a ballasted flocculation process to remove BOD and suspended solids
A method and system for treating water or wastewater to remove both soluble BOD and suspended solids. The method entails a ballasted flocculation process where a flocculant and insoluble granular...
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7141167 |
Filter device
A filter device for filtering liquids including a filter membrane, a main body which is arranged upstream from the filter membrane, and which has a feed channel perpendicular to the surface of the...
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RE39203 |
Current and aeration system for wastewater plant
A defined current and aeration system for the aeration chamber of an aerobic wastewater treatment plant is disclosed. It includes the release of oxygenation gas or air into the aeration chamber...
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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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7048852 |
Method and apparatus for treating water or wastewater to reduce organic and hardness contamination
A method of treating liquid including mixing coagulant with the liquid, introducing mixed coagulant and liquid into a primary reaction zone, containing an agitator, of a reactor which is...
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7022237 |
Aerobic wastewater management system, apparatus, and method
A septic tank ( 11 ) having two separate compartments, a trash tank ( 13 ) and a mix liquor compartment, using aerobic bacteria to process waste, and methods of its use. A settling compartment...
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7022226 |
Anaerobic bioreactor for the wastewater-treatment plant
The present invention relates to an apparatus for treating wastewater comprising aerobic microbes and an upflow anaerobic reactor in which the wastewater including various substances such as...
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7011759 |
Vessel head-flush process
Pressure is balanced within a partitioned process vessel by flushing the heads of the vessel. Careful handling of the flush purge removed from the head can mitigate the loss of valuable product to...
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7005069 |
Apparatus and method for aeration of wastewater
A wastewater treatment plant includes (i) an aeration vessel having a bottom portion, a top portion and a side portion disposed therebetween to hold a quantity of wastewater, the top portion and...
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7005065 |
Wastewater treatment system having aeration dropline-supporting clips
A clip for supporting the clarifier and the droplines in a wastewater treatment system is disclosed. The clip comprises a pair of parallel main plates wherein at least one main plate contains a...
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6984317 |
System for the treatment of soot-laden water
A system and method for treatment of soot-laden waste water is disclosed. The method comprises the steps of separating the soot from the waste water initially in a clarifier. The concentrated soot...
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6964738 |
Bioreactor processing of wastewater
A bioreactor tank is internally partitioned into two chambers within which wastewater is respectively aerated and from which a bacteria purified permeate is withdrawn after filtration, while a high...
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6962653 |
Autothermal aerobic digestion system having closed defoaming system
Disclosed is an autothermal aerobic digestion system having closed defoaming system. The system according to the present invention completely controls light and heavy foam by using a series of...
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6878280 |
Wastewater clarification methods and apparatus
The invention relates to a liquid clarifier useful for removing solids suspended in a wastewater stream. Settled biological solids are taken from the clarifier and combined in a mixing chamber with...
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6837997 |
Disposal of sediment from pond or lagoon at petroleum refinery
Method and system for removing accumulated sediment at the bottom of a waste pond or lagoon of a wastewater treatment plant for a petroleum refinery. The system comprises a primary oil separation...
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6821415 |
Self-adjusting fluid surface skimmer and fluid treatment system using same
A self-adjusting fluid surface skimmer and a wastewater treatment system incorporating the same are provided. In one embodiment, the skimmer includes an intake passage and an outlet passage. The...
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6790359 |
Vertical phase separation in anaerobic digestion
Method and process for dramatically increasing mixing, energy and operating efficiency of wastewater treatment plants at reduced capital and operating cost per unit volume.
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6783671 |
Enhanced activated sludge treatment
An enhanced activated sludge wastewater treatment method increases volumetric pollutant loading, hydraulic loading capacity and nutrient removal efficiency at a conventional activated sludge...
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6780319 |
Method and installation for treating effluents, comprising an additional treatment of the sludge by ozonization
Method of purifying wastewater charged with organic matter which comprises a step of biologically treating the water, during which the organic matter contained in the water is degraded by...
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6773593 |
Continuous flow reactor wastewater treatment plant
A system, apparatus, and method for treating wastewater having bio-solids therein. The system includes a tank, a wastewater inlet line, an effluent discharge outlet line, and an aeration source....
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6749757 |
Method and apparatus for removing hydrocarbons from water
An improved production water treatment system and method are disclosed. The treatment apparatus includes a vertically oriented vessel with tangentially disposed injection nozzles including one or...
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6733671 |
Apparatus for treating fluids
Treatment apparatus comprising a chamber ( 11 ) for treatment of a process fluid and having at least two regions in each of which the process fluid is caused to follow a circulating path, in which...
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6733662 |
Methods and apparatus for biological treatment of waste waters
In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater....
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6727090 |
Apparatus for producing compost tea
An apparatus for producing compost tea wherein compost material is passed through a separator housing in such a manner so that microorganisms on the compost material is washed from the compost...
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6726838 |
Biofilm carrier, method of manufacture thereof and waste water treatment system employing biofilm carrier
A biofilm support including a plastic biofilm support element having a maximum dimension which does not exceed 50 mm and having a specific gravity of between approximately 0.70-0.91. A method of...
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6706173 |
Filtration system
A filtration system for cleaning the fluid in a wash tank. The filtration system includes a process tank from which fluid is pumped to a filter element located in the wash tank. The filter element...
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6699445 |
Integrated column for liquid-liquid contacting
The present invention provides a system for, and method of, performing various liquid-liquid contacting operations such as solvent extraction, stripping, scrubbing, washing, re-extraction and...
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6630072 |
Methods and apparatuses for treating waste water
Novel methods and apparatuses are disclosed for the treatment of wastewater to reduce often associated offensive odors by promoting aerobic conditions through decreasing the amount of oxygen...
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6620323 |
Apparatus and process for biological wastewater purification
The present invention relates to an apparatus and a process for biological wastewater purification. According to the invention an activation tank ( 10 ) is provided in which, with feed of a...
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6620322 |
Apparatus and methods for purifying a waste influent material
Apparatus can comprise an anoxic zone, an aeration zone in communication with the anoxic zone, and a sedimentation zone in communication with the aeration and anoxic zones. The sedimentation zone...
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