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9028204 Centrifugal pump assembly  
The centrifugal pump assembly comprises a device for separating gas from the fluid to be delivered, which is arranged on the suction side. The gas separation device is provided with an impact body...
9023209 Systems and methods for converting gaseous byproducts of wastewater treatment into energy  
A method for removing methane from biogas is described. The method includes: (i) receiving biogas including methane and other components into a first tank; (ii) receiving water into the first...
9011679 Apparatus for waste water treatment  
An apparatus for treating water comprises a conduit assembly for receiving waste water from a downstream inlet and for providing treated water out of an upstream outlet. The conduit assembly...
8999166 Tank access hatch and cleaning method  
A specially designed hatch apparatus and method for entry to a water treatment chamber containing media for water treatment. The hatch's shape, specially embodied hatch/media gap seal and position...
8999153 Liquid waste treatment system  
A liquid waste treatment system is described. The system may include a first treatment conduit, a second treatment conduit, and at least one junction pipe disposed there between. In some...
8992772 Bioreactor system for aquarium and septic tank  
An aeration and microbial reactor system for use in decontaminating water including a housing adapted to float and/or submerged within the medium such that a top portion thereof remains adjacent a...
8986540 Bioreactor with suspended biomass and membrane supported biofilm  
A membrane supported biofilm apparatus has a plurality of hollow fiber gas permeable membranes in a tank containing water to be treated. A biofilm supported on the membranes occupies between about...
8980091 Oxygen control system and method for wastewater treatment  
A method and system for controlling dissolved oxygen levels in a secondary treatment system of a wastewater treatment facility that can employ a membrane bioreactor in which oxygen introduction...
8980083 Water treatment apparatus  
A water treatment apparatus comprises a chamber divided by a partition into a treatment section and an outlet section. The treatment section may, for example, contain a filter media including...
8980092 Septic system  
A system and method includes an aeration subsystem that excites enzymes in the liquid waste passing through the septic system. The aeration subsystem includes a compressor section that compresses...
8974670 Method for enhanced aerobic activity and bio-mat control for onsite wastewater disposal systems  
The present invention provides an aeration lateral system designed to be site specific for new septic disposal areas or retro fitting to existing septic disposal areas to break up the biological...
8974664 Storm water treatment system  
A procedure for treating rain water run-off includes forming a swale for the capture, treatment, and re-use of the storm water to improve the overall quality of the water before discharge.
8961793 Storm water treatment apparatus and method  
A rapidly installed intermittent flow and storm water treatment method and apparatus employing rapid solids separation and sulfur dioxide chemical dewatering technology to produce disinfected...
8956540 Process and apparatus for controlling aeration during nitrification and denitrification of water  
A process for treating water that includes ammonium. The water is directed to a biological reactor and the quantity of nitrates formed in the reactor and the quantity of ammonium reduced in the...
8951412 Wastewater lagoon aeration treatment system  
A novel lagoon aeration treatment system is provided which can be used with existing or new wastewater lagoons to increase the lagoon's treatment efficiency and capacity, and to allow for a...
8945378 Apparatus for cleaning wastewater  
A method for cleaning waste water is provided whereby the waste water is led through a throughput tank having filler materials to which aerobic microorganisms are adhered and wherein the...
8940159 Reduction and control of pH and soluble CO2 for optimal nitrification for domestic, industrial and municipal wastewater  
The invention includes a method for the optimization of the soluble CO2 concentration in the aeration basin of an activated sludge system, which significantly improves the specific growth rate of...
8940170 Triple-chambered wetland biofilter treatment system  
A dual-chambered horizontal flow water treatment system and method provides a first chamber with a first filtration system connected with a second chamber with a second filtration system in a...
8919744 Water aeration system and method  
The aquaculture pond aeration system is essentially comprised of a ā€œuā€ shaped conduit that extends below the pond bottom. A sparger assembly is positioned below the pond bottom in the outlet side...
8920642 Wastewater treatment unit  
A biological wastewater treatment system is provided comprising a watertight basin and a filter. The basin has an open top and is configured for being placed on a substrate. The filter is located...
8920651 Bioremediation reactor systems and methods  
In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria...
8894862 Controlled in-situ burning of oil using wicking material  
In a water environment in conjunction with one or more types of oil, a method of in-situ burning including placing a fire resistant sorbent material in contact with the oil and allowing the oil to...
8894849 Upward flow constructed wetland for treatment of water contaminated with chlorinated aliphatics  
An improved upward flow constructed wetland cell for treatment of water contaminated with chlorinated aliphatics is disclosed. The improvements include adding ammonia-oxidizing microorganisms to...
8889006 System for wastewater treatment using aquatic plants  
A wastewater treatment system includes an outlet barrier for controlling a flow of wastewater from a treatment zone to an outlet from the wastewater environment. An immersed support structure is...
8877045 Water treatment apparatus  
Embodiments of a water treatment unit are disclosed. An embodiment of a water treatment unit according to the present disclosure comprises a generally vertical riser having a lower end and an...
8840783 Water treatment membrane cleaning with pulsed airlift pump  
A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane...
8784658 Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration  
The present invention relates to a process for treating wastewater that includes the steps of: ā€”a contact step, wherein wastewater contacts bacteria retained on a support surface and the dissolved...
8764986 Submerged system and method for removal of undesirable substances from aqueous media  
A system and method are provided for removal of undesirable substances from a body of liquid. The system can include an aeration structure having a continuously inclined surface configured to...
8753505 Liquid treatment apparatus and method for using same  
An apparatus for treating a liquid includes a first flow generator having an outlet for generating a first flow stream and a reaction chamber positioned in proximity to the outlet of the first...
8741101 Liquid concentrator  
A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from...
8741100 Liquid concentrator  
A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from...
8734727 Plasma microreactor apparatus, sterilisation unit and analyser  
Apparatus for the production of a product gas (eg hydrogen and ozone) comprises: a supply of reactant gas (eg oxygen and steam) (14); a pair of electrodes (24) with a space between them of less...
8721888 Wastewater treatment method using annularly arranged microorganism carriers  
A wastewater treatment method using annularly arranged microorganism carriers in a reaction tank, which defines therein an upper reaction area, a lower reaction area and a passage area surrounded...
8691092 Treating water using floating wetland made of plastic waste  
An apparatus for creating floating wetlands and improving water quality is provided. The apparatus includes a lower retainer; an upper retainer; a floatable waste material disposed between the...
8691093 Anaerobic waste treatment apparatus  
An anaerobic waste treatment apparatus comprises a container wherein randomly oriented bio-film media are disposed. An example waste treatment apparatus includes a container and optionally has at...
8679327 Bioretention box  
The bioretention box includes a vault, a lid and a removable grate positioned within the lid, the combination of the vault, lid and grate being positionable with a dugout subgrade region and...
8673140 Biological filtration system with socks of absorbent material  
In an apparatus for treating wastewater, e.g sewage water, the water passes through absorbent material. The material comprises e.g inexpensive scraps or off-cuts of plastic foam. The pieces of...
8663464 Apparatus and methods for enhanced electrocoagulation processing using membrane aeration  
Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an...
8603329 Wastewater treatment apparatus with two-stage multimedia biological filtration process  
A wastewater treatment apparatus of the present invention is configured to biologically filter wastewater through multimedia by consecutively performing two stages (the first and second stages)...
8597514 Apparatus and method for treating wastewater  
A water treatment unit includes a mixing chamber surrounding the upper end of a riser containing an impeller. Water can be moved from a body of water up through the riser, and out through...
8580115 Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge  
A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the...
8551330 Carbon retention screen with variable discharge head  
A carbon adsorption vessel for use in a CIP (carbon in pulp) or CIL (carbon in leach) process may be constructed. A slurry is obtained having dissolved (leached) precious metals. The slurry is...
8535532 Systems and methods for wastewater treatment  
A method of wastewater treatment is described. The method includes: (i) receiving wastewater produced after anaerobic digestion; (ii) performing a first type of treatment on wastewater to produce...
8524084 Wastewater treatment  
A wastewater treatment system includes wastewater having nitrogen-containing compounds, an anoxic zone having denitrifying bacteria, and an aerobic zone having nitrifying bacteria. The anoxic zone...
8524076 Fluid purification unit and fluid purification assembly including the same  
A fluid purification unit includes a case including a hollow and a plurality of openings communicating with the hollow to flow a fluid inside into the hollow and outside from the hollow, the case...
8518249 Versatile biological wastewater treatment system  
A biological wastewater treatment system is provided which is adaptable to small, shop fabricated package plants and large, assembled in place plants, and which can be operated as a secondary...
8506800 System for enhancing a wastewater treatment process  
A system for enhancing an activated sludge process including at least one biological reactor. A weighting agent impregnation subsystem is coupled to the biological reactor for mixing biological...
8500995 Method and device for treatment of water  
A method is for the treatment of ballast water, in which the ballast water is carried into a ballast tank via a down pipe and in which an underpressure created at the upper portion of the down...
8496837 Reactor for reductive conversion reactions using palladized bacterial cellulose  
A process for affecting reductive conversion reactions in a reactor using the palladized bacterial cellulose immobilized on a support for reductive conversion reactions in a reactor.
8475653 Water treatment apparatus having meshed tubes provided with cilia and water treatment method using the same  
A water treatment apparatus includes a plurality of meshed tubes made of synthetic yarn and provided with cilia; a plurality of tube stack cages containing the meshed tubes; and an aeration...