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7632408 |
Passive drain field system for wastewater treatment and associated methods
A passive drain field assembly reduces nitrogen in wastewater by facilitating nitrification and denitrification. A first chamber receives effluent into a multi-pipe bundle. An air vent is provided...
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7575686 |
Process for autotrophic perchlorate reduction using elemental sulfur and mollusk shells
The invention relates to a system and method to reduce perchlorate in wastewater utilizing perchlorate-reducing bacteria, sulfur as an electron donor and mollusk shells as alkalinity agent....
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7575683 |
Portable wetlands
The present invention includes a portable Sub-Surface Flow Constructed Wetlands system for removing pollutants from a body of water. The portable wetlands system includes a sealed container having...
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7550087 |
Apparatus and method for treating FGD blowdown or similar liquids
A process has steps of one or more of aerobic treatment to remove COD and nitrify a waste stream, anoxic treatment to denitrify a waste stream, anoxic treatment to remove selenium and anaerobic...
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7547394 |
Wastewater treatment with aerobic granules
A wastewater treatment system using aerobic granules has a large number of sequencing batch reactor tanks with high volumetric exchange rate, a variable cycle length and constant batch volume. The...
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7540960 |
Method and system for inoculating bacteria in contaminated water using earthworm humus
A system for treating liquids by forming bacteria flora using earthworm humus is disclosed. In some embodiments, the system includes a containment tank for receiving a contaminated liquid...
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7537690 |
Treatment apparatus of waste water containing oil and fat for grease trap and grease trap
A treatment apparatus of waste water containing oil and fat for grease trap mounted on a grease trap and for decomposing and treating, with an immobilized enzyme, waste oil and fat waste in waste...
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7527728 |
Biomass carrier promoting simultaneous nitrification-de-nitrification
The invention is a biomass carrier used in the biological purification of waste water. The design of the biomass carrier is characterized by a surface morphology designed to produce a specific...
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7520990 |
Anaerobic wastewater treatment system and method
An anaerobic wastewater treatment system includes a recycle tank, a bioreactor tank and a bioselector for recapturing anaerobic microbial consortia particles escaping from the bioreactor tank and...
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7520991 |
Biological method for removing phosphorus and nitrogen from water using granulated methane-oxidizing bacteria
A biological removal method of phosphorus and nitrogen includes supplying a mixture gas into a gas holder. Inflow water and return water are supplied into the gas holder to make the mixture gas...
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7501060 |
Wastewater treating system
A wastewater treating system includes: a vessel defining a vessel space therein, the vessel space being partitioned into an activated sludge zone that is adapted to receive waste water and a body...
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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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7485232 |
Water treatment method and water treatment apparatus
In a water treatment apparatus, microorganisms propagating on wood charcoal are activated by micro-nano bubbles contained in treatment water. Water treatment is carried out with the activated...
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7468134 |
See-thru self cleaning biological filter system for aqua-culture
A system is described for collecting, filtering and removing dirt, debris, detritus, active organic materials, chemicals and toxins from water in fish ponds and general aqua-culture applications....
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7462284 |
Dissimilatory sulfate reduction as a process to promote denitrification in marine recirculating aquaculture systems
The present invention relates to a novel approach for nitrate removal from a marine recirculating system ( 10 ) wherein high concentrations of sulfate found in seawater is used in combination with...
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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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7445715 |
System for treating wastewater and a controlled reaction-volume module usable therein
A wastewater treatment system including a biological reactor is disclosed. At least one controlled-reaction-volume module is provided to the biological reactor. The at least one...
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7439054 |
Bioreactor system for biological degradation of oily sludge
A 10,000 gallon sequencing batch reactor tank for the on-site bio-degradation of oily sludge. Bacteria already present in and adapted to oily sludge degrade the hydrocarbons found in oily sludge...
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7425268 |
Device and related methods for purifying a liquid
In an aspect of the invention, a device for purifying water in a water water garden or fish pond comprises a filter medium configured to clean the water flowing through the device, and a housing...
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7407580 |
System and method for treating carbon, nitrogen, phosphorous containing wastewater
The present invention relates to a wastewater treating system and method for removing pollutants of carbon, nitrogen, phosphorous, comprising: a first reactor contains methanogenic bacteria, PAO...
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7407581 |
Biodegradation of oxyanions such as perchlorate on ion exchange resins
Improved systems and methods for removing the load of perchlorate and other oxyanions off of ion exchange resins through bioregeneration are disclosed. The improved systems and methods rely upon...
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7390410 |
Method and apparatus for the anaerobic treatment of waste
A method and apparatus for the anaerobic treatment of waste water is described which includes a plug flow bioreactor containing a single bed of inert microbial attachment media and anaerobic...
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7378022 |
System and methods for biological selenium removal from water
A biological system for removing selenium from waste water comprises a first immobilized cell bioreactor (ICB) and a selenide removal module. The first ICB comprises a chamber having a substrate...
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7374683 |
Biofilter and method for filtering a waste liquid
The biofilter is used for the purification of a waste liquid using layers of filtering material, wherein the waste liquid moves downwardly by gravity while an O 2 -containing gas moves upwardly...
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7347940 |
Nitrogen removal system and method for wastewater treatment lagoons
A wastewater treatment process integrates a tidal nitration system with a wastewater treatment lagoon. Raw effluent enters a lagoon having a persistent anoxic or anaerobic state and a long...
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7344644 |
Method and system for purifying water
The disclosed methods and systems of water purification relate to burying an underdrain in situ under a filter media bed such as a particulate material bed, within a natural body of water. A pump...
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7335303 |
Zero-discharge of water glass effluents by alkaline biotreatment techniques
The present invention relates to the collection of alkalophilic/alkaline-tolerant microbes and use of said microbes in water glass wastewater treatment. The wastewater is treated directly with...
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7332084 |
Process for biological treatment of organic wastewater and apparatus therefor
A multistage activated sludge process involving a predation effect caused by microorganisms realizes further improvement in treatment efficiency and further decrease in the amount of excess sludge...
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7326345 |
Bioremediation method which is used to concentrate and eliminate radionuclides in radioactive water
A method for concentrating and eliminating radionuclides from water from in nuclear pools based on the capacity of microorganisms when they are growing to retain radionuclides by forming biofilms...
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7326344 |
Process for the removal of metals by biosorption from mining or industrial effluents
A method and a plant to remove metals by biosorption from mining or industrial effluents comprising: (a) subject the effluent to at least one first stage of pre-treatment, selecting among:...
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7320752 |
Integrated hydroponic and wetland wastewater treatment systems and associated methods
The wastewater treatment systems have a plurality of treatment modules between the inlet and the outlet, each for treating water with a selected process. Influent is directed to a covered anaerobic...
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7318895 |
Biodestruction of blended residual oxidants
The present invention may be used for treatment of waste streams using domestic wastewater. A concentrate waste stream containing one or more of perchlorate, nitrate, bromate, selenate and chromate...
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7311835 |
Method for supplying oxygen to a water purification process
The present invention relates to a method for supplying oxygen to a water purification process, said method comprising providing an oxygen carrier of at least one copolymer of dimethylsiloxane,...
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7309434 |
Apparatus and method for wastewater treatment
A method for treating wastewater. The method comprises: providing a first dose of air to aerate a medium bed; supplying a dose of wastewater to the aerated medium bed; allowing nitrification of the...
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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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7297275 |
Biomembrane filtration apparatus and method
The present invention has an object to provide a biomembrane filtration apparatus which can treat a nitrate nitrogen and nitrite nitrogen in an anaerobic state to stably remove them together with...
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7294273 |
Process for treatment of organic contaminated water
The present invention may be used in methods for treatment of drinking water contaminated with algal metabolites. An inflow of water in a drinking water treatment facility may have multiple types...
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7294272 |
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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7291265 |
Passive treatment of wastewater and contaminated groundwater
A bioremediation system using inorganic oxide-reducing microbial consortia for the treatment of, inter alia coal mine and coal yard runoff uses a containment vessel for contaminated water and a...
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7273553 |
Method for the treatment of waste water with sludge granules
The invention relates to a method for the treatment of waste water comprising an organic nutrient. According to the invention, the waste water is in a first step fed to sludge granules, after the...
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7258793 |
Method and apparatus for treating organic liquid waste
In a method and apparatus for treating an organic liquid waste with a biofilm, the organic liquid waste is dissolved with oxygen under a first pressure higher than an atmospheric pressure to...
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7252766 |
Wastewater treatment system and method
A system, method and apparatus for treating wastewater containing biodegradable material wherein a submerged stand alone perforated cylinder reactor pod containing aerobic bacterial growth media...
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7244358 |
Denitrification of aquarium water
The invention relates to agents for the removal or reduction of inorganic nitrogen compounds, especially nitrate, from biological aquarium waters, containing a biologically degradable polymer,...
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7238286 |
Combination trickling filter and overflow tank for secondary treatment of wastewater, and associated method of managing wastewater overflow
A method and apparatus for controlling water flow in a wastewater treatment plant is provided. The method comprises the steps of providing a trickling filter effluent water basin having filter...
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7214317 |
Tidal vertical flow wastewater treatment system and method
A wastewater treatment system includes a tidal, sequential vertical flow marsh cell system having at least three marsh cells in serial forward fluid communication. Incoming wastewater to be treated...
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7198941 |
Porous vessel bioreactor
The present invention provides a porous vessel bioreactor apparatus for use in reaction with immobilized enzymes and/or microbial cells, said apparatus consisting of a vertically elongated reaction...
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7172700 |
Method and apparatus for determining weight and biomass composition of a trickling filter
In one embodiment, a filter media tower assembly is provided comprising a first portion and a second portion, wherein the first portion is suspended within the second portion. The first portion is...
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7166219 |
Method of purifying fischer-tropsch derived water
A process for the production of highly purified water 44 from Fischer-Tropsch reaction water 12 includes distillation 14 as a primary treatment stage, biological treatment including anaerobic...
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7160460 |
System and method for treating wastewater using coir filter
A wastewater treatment system includes a septic tank having a discharge in flow communication with one or more biofilter containers having filter media therein. Wastewater or effluent from the...
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7157001 |
Carbon filtration process and apparatus for removing PCB's and other compounds from wastewater
Process and apparatus for treating wastewater from a sewer system including the steps of: (A) removing solids contained in the influent to create solids-depleted preliminary effluent (PrE) and to...
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