| Entries |
| Document | Title | Date |
|---|
| 20080223782 | 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 tank to a pressurized state so as to simultaneously accomplish enhancement of utilization efficiency of gas phase and further reduction of the amount of excess sludge generated. There is further provided a biological purification process characterized in that microorganisms fulfill purification activity in a pressurized reaction tank having a pressure other than deep water pressure applied thereto. Preferably, together with water to be treated, reactant gas such as pure oxygen, ozone-containing oxygen (ozonized oxygen) or air is fed into the pressurized reaction tank. With respect to gas and liquid fed into the reaction tank, preferably, reactant gas is fed in the form of dissolved gas or microbubbles by means of a gas-liquid mixing unit (line atomizer). Preferably, the pressurized reaction tank is fitted with a support for microorganisms as means for increasing the habitant density of microorganisms engaging in reaction and retaining such microorganisms. | 09-18-2008 |
| 20080251452 | "In-situ" ballast water treatment system and method - A method and system for ballast water treatment are provided. Living organisms are added into a vessel's ballast water tank (e.g., via an existing vent) to consume (i) oxygen dissolved in ballast water contained in the ballast water tank, and (ii) food sources for selected organisms contained in the ballast water. | 10-16-2008 |
| 20080264860 | MULTI-GAS BIOREACTOR AND RELATED METHODS - A bioreactor is for processing a fluid stream. The bioreactor may include a bioreaction chamber for receiving the fluid stream therethrough, a pair of spaced apart gas header assemblies within the bioreaction chamber for coupling to first and second gases, a first plurality of hollow fiber membranes (HFMs) extending between the pair of gas header assemblies for introducing the first gas into the fluid stream within the bioreaction chamber, and a second plurality of HFMs extending between the pair of gas header assemblies for introducing the second gas into the fluid stream within the bioreaction chamber. | 10-30-2008 |
| 20080272050 | Multi-Barrier Water Purification System and Method - Disclosed herein are systems and methods for decontaminating a contaminated fluid that integrate ultraviolet radiation in an advanced decontamination process, and a honing material, along with a cross-flow membrane filter, into a single closed-loop system. This approach combines the advantages of chemical-free advanced decontamination technology, long-life wiper-free UV disinfections, and maintenance-free ceramic MF/UF membranes to provide multi-barrier protection. Such technique provides a 100% fluid recovery system (zero reject stream). In one embodiment, the system comprises a filtration membrane and a honing material located in the contaminated fluid that is sufficient to scrub foulants from the membrane, as well as any other components that honing material comes in contact with, while forming a dynamic filtration coating on the membrane as the contaminated fluid pass through the membrane. The system may also comprise an advanced decontamination process sufficient to destroy, by oxidation or reduction, biological and organic contaminants from the contaminated fluid. | 11-06-2008 |
| 20080277340 | 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, various process control variables are employed. First, the membrane filters are cleaned by an air scouring process where bubbles are moved upwardly adjacent the membrane filters and clean the same in the process. To control membrane fouling, a process is utilized that dynamically varies the air scouring flow rate (V) as a function of transmembrane pressure (TMP). In addition, the process entails allowing permeation to start and stop which results in a series of cycles where each cycle includes a permeation phase and a relaxation phase. The duration of the relaxation phase (TR) and the duration of the permeation phase (TP) is varied from cycle to cycle as a function of one or more process variables including the change in TMP over a selected period within a membrane phase, or the change in TMP over a selected time period spanning at least two membrane phases. | 11-13-2008 |
| 20080296221 | METHOD AND SYSTEM FOR THE TREATMENT OF WASTEWATER - A wastewater treatment system for treating wastewater by processes which include aeration. The system includes an influent conduit for delivery of wastewater to be processed and a treatment tank for processing of the wastewater. Also included is an air conduit for providing compressed air for aeration of the wastewater and a particle size regulation device disposed between the conduit and the tank, wherein the particle size regulation device regulates a size of particles present in the wastewater to provide particle size regulated wastewater. The system also includes at least one aeration jet having a nozzle diameter sized to allow the particle size regulated wastewater to pass through the nozzle. | 12-04-2008 |
| 20090045134 | Ballast water intake and treatment system - A ballast water intake and treatment system is disclosed, the system including a membrane treatment unit arranged in or on a ship hull for the separation of microorganisms of no smaller than a given size and organized to execute filtration during the intake of sea water or fresh water outside the hull into ballast tanks by the use of an intake pump installed consecutively with the membrane treatment unit. The system checks the invasion of microorganisms, etc. of no smaller than a given size during the intake of ballast water and allows ballast water free of microorganisms, etc. of no smaller than a given size to be fed into ballast tanks. | 02-19-2009 |
| 20090127191 | PROCESS FOR TREATING A SOLID-LIQUID MIXTURE - A process is disclosed for treating a mixture of a solid and a liquid, the mixture including a contaminant. The process comprises the step of subjecting the mixture to cavitation wherein at least a portion of the contaminant is chemically decomposed. The process subsequently comprises the step of introducing a pre-determined biological species into the treated mixture to give a desired biological outcome, such as a biodegradation treatment, remediation or decomposition of the contaminant. Such a dual process can reduce the concentration of a contaminant to extremely low levels as well as achieve outcomes that the introduction of a biological species alone is not able to achieve. | 05-21-2009 |
| 20100012582 | METHOD AND APPARATUS FOR BIOLOGICAL WASTEWATER PURIFICATION - The known activated sludge processes have several disadvantages. With the conventional sludge processes only a limited high dry matter content TS | 01-21-2010 |
| 20100038311 | Entrapping immobilization pellets, wastewater treatment system using the entrapping immobilization pellets and wastewater treatment method - The entrapping immobilization pellets satisfy conditions: (A) the deformation rate expressed by (H | 02-18-2010 |
| 20100096324 | SYSTEM AND METHOD FOR REDUCING POLLUTION IN A BODY OF WATER - A system and method reducing pollution in a body of water using biological processes is provided. The system includes a hydraulic dam generated by an induced downwelling of effluent water from a plurality of water circulating devices. A series of linearly arranged treatment sub-systems are disposed upstream of the hydraulic dam. The treatment sub-systems include a water sterilization sub-system for neutralizing harmful and undesirable micro-organisms using an ultrasonic energy generating unit. The ultrasonic energy generated, is of a frequency that disrupts cellular structures in targeted micro-organisms. | 04-22-2010 |
| 20100193433 | Vertical Land-Based Bioreactor - A bioreactor for treating a liquid comprises a container having a vertical wall portion with at least one inlet port and at least one outlet port. The bioreactor also comprises a media support platform securely disposed inside the container at a position below the inlet and outlet ports, and substantially permeable to liquid. The bioreactor comprises at least one cylindrical chamber inside the container at a position above the media support platform. The bioreactor also comprises a plurality of media units topically disposed on the media support platform. The bioreactor comprises a recirculation/aeration system secured at a bottom end of the cylindrical chamber. The recirculation/aeration system has a submersible pump device that can be programmed to pump liquid at variable speeds and has a liquid intake portion having perforations, an air intake tube, and an eductor device. The air intake tube protrudes through a top port of the container. | 08-05-2010 |
| 20100200501 | GREEN SYNTHESIS OF NANOMETALS USING PLANT EXTRACTS AND USE THEREOF - The present invention relates to methods of making and using and compositions of metal nanoparticles formed by green chemistry synthetic techniques. For example, the present invention relates to metal nanoparticles formed with solutions of plant extracts and use of these metal nanoparticles in removing contaminants from soil and groundwater and other contaminated sites. In some embodiments, the invention comprises methods of making and using compositions of metal nanoparticles formed using green chemistry techniques. | 08-12-2010 |
| 20100200502 | SEPTIC SYSTEM REMEDIATION METHOD AND APPARATUS - A wastewater treatment apparatus for a wastewater treatment system that includes a septic tank with a lower sludge layer, an upper effluent layer, and a tank floor. The wastewater treatment apparatus includes a positive pressure pump that is configured to pump a fluid, and a tube that has an outlet that is spaced from the tank floor. The tube is in fluid communication with the positive pressure pump. | 08-12-2010 |
| 20100252500 | TREATMENT OF SPENT CAUSTIC WASTE - Systems and methods are provided for the treatment of caustic wastewater. Specifically, systems and methods are provided for combining refinery spent caustic and ethylene spent caustic solutions and treating the combined spent caustic mixture using a wet air oxidation process. | 10-07-2010 |
| 20100264082 | SUSPENDED MEDIA GRANULAR ACTIVATED CARBON MEMBRANE BIOLOGICAL REACTOR SYSTEM AND PROCESS - A system and process for treating an industrial wastewater stream is provided using a membrane biological reactor in which granular activated carbon material is introduced into an aeration portion and maintained upstream of a membrane operating system. The size of the granules of activated carbon is selected so that they can be screened or otherwise readily separated from the mixed liquor stream before the mixed liquor enters the membrane operating system tank(s) containing the submerged membranes, thereby preventing abrasion of the membrane by the carbon granules. The aeration portion includes a waste discharge port whereby a portion of spent granular activated carbon can be removed when the effluent concentration of chemical oxygen demand compounds approaches limits typically set by governmental agencies, and replaced by addition of fresh or regenerated granular activated carbon having greater adsorbent capacity. | 10-21-2010 |
| 20100300965 | DIFFUSER APPARATUS, AND DIFFUSER APPARATUS RUNNING METHOD - The present invention provides a diffuser apparatus which has fine pores capable of achieving a high oxygen transfer efficiency and rarely becoming clogged so that the apparatus can be operated stably over a prolonged period. The diffuser apparatus according to the present invention includes: an aeration plate | 12-02-2010 |
| 20110000851 | High Performance Nitrifying Sludge For High Ammonium Concentration and Low Temperature Wastewater Treatment - Compositions of bacteria which are effective for the nitrification of wastewater, particularly at low temperatures, are described. The compositions are comprised of 35 strains or populations of at least partially characterized isolated bacteria. These compositions may be used to treat wastewater contaminated with animal fecal waste and/or ammonia. In use, wastewater is contacted with the bacterial composition of the invention under aerobic conditions and for a period of time effective to oxidize ammonia therein. | 01-06-2011 |
| 20110011799 | PROCESS FOR REMOVING SULFIDE FROM ALKALINE WASHING LIQUIDS - Alkaline solutions resulting from extracting sulfide from hydrocarbon fluids can be treated in a combination of one or more electrodialysis cells and a bioreactor. The electrodialysis cell ( | 01-20-2011 |
| 20110011800 | BIOLOGICAL NITROGEN REMOVAL - The present invention relates to a method of treating a liquid to extract at least one of carbon, sulphur, nitrogen or phosphate from liquids such as waste water. Preferably, the invention is employed to remove nitrogen from waste water. In an alternate for the invention provides a wastewater treatment system. | 01-20-2011 |
| 20110042309 | SOLAR POWERED AERATION AND MICROBIAL INCUBATION SYSTEM - Disclosed is a system and method for treating a body of water, without the necessity of being connected to an electrical grid, that includes photovoltaic collectors and a battery bank that is charged by the photovoltaic collectors. The photovoltaic collectors and the battery bank operate a series of air pumps that are connected to an air pump manifold to create a uniform source of compressed air that is distributed to a plurality of floating diffuser manifolds. A plurality of air stones are suspended under the floating diffuser manifolds that create air bubbles that are absorbed by the body of water and circulate said body of water to disburse a microbial fluid. In addition, an incubator system is also connected to an air pump that incubates microbes to form a microbial fluid that can be automatically dispersed throughout the body of water. | 02-24-2011 |
| 20110068058 | APPARATUS AND PROCESS FOR TREATING WASTEWATER - An apparatus for treating wastewater is provided, which comprises a biological reaction tank and a membrane separation device. The membrane separation device is provided outside the biological reaction tank. A mixing device is provided inside the biological reaction tank and an aeration device is provided inside the membrane separation device or inside a container for loading the membrane separation device. The biological reaction tank is connected to the membrane separation device or the container for loading the membrane separation device through a pipeline. A process using the apparatus for treating wastewater is also provided. | 03-24-2011 |
| 20110100908 | Waste Water Treatment - In the treatment of domestic and municipal waste water environmental pollutants, such as ammonia, oxides of nitrogen, organic matter which gives rise to what is known as chemical oxygen demand (COD) [and biological oxygen demand (BOD)], and solid matter, should be removed from the waste water In a typical treatment process the waste water is treated to remove ammonia, firstly by nitrification—the biological oxidation of ammonia (NH | 05-05-2011 |
| 20110163028 | Biofilm Reactor Containing Spiral Structure and Water Treatment Device Using the Same - The present invention provides a biofilm reactor comprising a spiral structure and a water treatment facility using the same. The biofilm reactor comprises an inlet pipe for supplying water, an air supply pipe for supplying air, and an outlet pipe for discharging the water and air that passed through the reactor, wherein the reactor is provided therein with a spiral structure for forming a spiral bubble flow passage from the air supply pipe to the outlet pipe such that the oxygen transfer rate is increased by inducing the flow of bubbles supplied from the air supply pipe and by increasing residence time of the bubbles. The biofilm reactor is advantageous in that microbes adhere to the spiral structure to form a biofilm on the spiral structure, thus realizing both microbe suspension growth and microbe adhesion growth conditions, and in that the concentration of dissolved oxygen in water can be effectively increased without using power to stir, and the concentration of microbes can be effectively increased and maintained. | 07-07-2011 |
| 20110278221 | INSTALLATION FOR THE TREATMENT OF UREA-CONTAINING WATER, TOILET, STABLE, AND METHOD - The invention relates to a device for treating urea-containing water. The invention also relates to a domestic toilet provided with such a device. The invention also relates to an animal accommodation provided with such a device. In addition, the invention comprises a method for treating urea-containing water. The device comprises a nitrification unit adapted to oxidize urea to nitrates and carbon dioxide, wherein the nitrification unit is also provided with an oxygen feed, a gas discharge and a throughfeed for feed of waste water nitrified by the nitrification unit to a filtration unit connected to the nitrification unit. The nitrification unit preferably comprises nitrifying bacteria. | 11-17-2011 |
| 20110290722 | ACTIVATED SLUDGE PROCESS IN WASTEWATER TREATMENT - The present disclosure relates to methods of treating highly contaminated wastewater using waste activated sludge as an adsorbent. | 12-01-2011 |
| 20120024782 | METHOD AND APPARATUS FOR TREATING AN OIL SPILL - A method for enhancing biodegradation of oil in water, the method comprising:
| 02-02-2012 |
| 20120085705 | Wastewater chemical/biological treatment method for open water discharge - A wastewater treatment method employing chemicals for disinfection, and precipitation of suspended solids, heavy metals and phosphates before subsequent aerobic bacterial biological treatment using | 04-12-2012 |
| 20120118820 | Septic System with Pressure Gradient Transport - Septic system design, installation, maintenance and use are described and provided. In embodiments, design, installation, and maintenance of pressure gradients in a septic system serve to transport treatment tank gases, or other gases, downstream, towards or into a leach field, bio-filter, drain field, or other environment. Such transport may promote the displacement of gases or the remediation of gases. | 05-17-2012 |
| 20120152835 | FUEL CELL DEVICES FOR USE IN WATER TREATMENT AND RECLAMATION PROCESSES - In some aspects, the disclosure provides methods and materials for generating electrical energy from wastewater treatment materials. For example, the methods involve selecting a pair of materials from a wastewater treatment facility and forming a microbial fuel cell using the pair of materials as anode and cathode materials. There are provided various configurations suitable for adaptation to existing wastewater treatment facilities, as well as design parameters for new wastewater treatment facilities, devices, or schemes that take advantage of the methods of the disclosure. | 06-21-2012 |
| 20120152836 | PROCESS TO PRODUCE BIOFUELS FROM BIOMASS - Biofuels can be produced by: (i) providing a biomass containing celluloses, hemicelluloses, lignin, nitrogen compounds and sulfur compounds; (ii) removing sulfur compounds and nitrogen compounds from the biomass by contacting the biomass with a digestive solvent to form a pretreated biomass containing carbohydrates and having less than 35% of the sulfur content and less than 35% of the nitrogen content of untreated biomass on a dry mass basis; (iii) contacting the pretreated biomass directly with hydrogen in the presence of a hydrogenolysis catalyst to form a plurality of oxygenated intermediates, and (vi) processing at least a portion of the oxygenated intermediates to form a liquid fuel. | 06-21-2012 |
| 20120160768 | ORGANIC-WASTEWATER TREATMENT METHOD AND ORGANIC-WASTEWATER TREATMENT APPARATUS - By adding an iron salt, the sedimentation property, the concentration property, and the filtration property of sludge in an activated-sludge mixed liquor in a biological treatment tank are effectively improved and treated water of high quality is efficiently provided. When an iron salt such as ferrous chloride, ferric chloride, or polyferric sulfate is added to organic wastewater and the organic wastewater is biologically treated, the iron salt is added to the organic wastewater and mixing is conducted; and the water mixture is mixed with activated sludge and biologically treated. By mixing organic wastewater and an iron salt at a pH close to an optimum pH for ferric hydroxide in advance, the turbidity of the treated water due to the formation of iron oxide or ferrous carbonate is suppressed. | 06-28-2012 |
| 20120223012 | WASTE SLUDGE DIGESTION PROCESS BY SEQUENTIAL INTERMITTENT OZONE DOSING - This invention is developed by including the intermittent sequential ozonation process to the commonly employed aerobic biological sludge digestion process, which is used for reducing the amounts of by-product waste sludge produced in treatment plants; thereby stabilizing the sludge in a shorter period and at a lower cost, as compared to the state of the art of the technique. With the intermittent sequential ozonation process used for sludge digestion, ozone is applied to the waste sludge intermittently and not continuously. Following the ozone application, sludge is aerated in the aerobic digester by one doubling time and at the end of this period it is re-ozonated. The COD, released following disintegration of the floc structures by ozone application, is re-consumed by bacteria both completing sludge digestion and carbon removal. Over 80% reductions in sludge amount have been achieved by dosing different amounts of ozone with respect to the changing sludge concentrations. Although normal aerobic digestion takes 15-30 days to complete, in intermittent ozone dosing process digestion is completed in very short periods such as 4 days. Due to stabilized and sterilized condition of the sludge and its high concentration of phosphorus, digested sludge may be used as soil fertilizer. | 09-06-2012 |
| 20120234754 | ORGANIC WASTEWATER TREATMENT DEVICE AND ORGANIC WASTEWATER TREATMENT METHOD - An organic wastewater treatment apparatus comprises a biological treatment tank provided with a whole floor aeration section in which a first aerator is disposed so as to perform whole floor aeration, a solid-liquid separation section formed above the whole floor aeration section and provided with a membrane separation device immersed in activated sludge, and a flow path narrowing section formed between the whole floor aeration section and the solid-liquid separation section so as to vertically separate the whole floor aeration section and the solid-liquid separation section, wherein the flow path narrowing section includes a flow path narrowing device configured to narrow a cross-sectional area of the flow path from the whole floor aeration section to the solid-liquid separation section so as to combine fine air bubbles discharged from the first aeration device to each other and discharge the combined bubbles to an area below the membrane separation device. | 09-20-2012 |
| 20120312745 | MIXING SYSTEMS AND METHODS OF MIXING - A system for mixing and mixing processes and structures are disclosed. In addition a nozzle used for mixing is disclosed. | 12-13-2012 |
| 20120325741 | Systems and Methods for Wastewater Treatment - Disclosed is a system and method for treating wastewater. The system includes a bioreactor which defines a basin for receiving wastewater to be treated; a membrane module in fluid communication with the bioreactor; and a dissolution tank. The tank includes a pressure vessel that contains a portion of the wastewater to be treated and provides a regulated, pressurized gas head space above the wastewater. The tank also includes at least one liquid spray nozzle that permits passage of the wastewater into the gas head space of the pressure vessel and an outlet for discharging the wastewater having a desired gas concentration from the pressure vessel. The system also includes a pumping mechanism for supplying the wastewater to the spray nozzle of the tank such that fluid droplets are formed in the gas head space and the gas contained within the pressurized head space is dissolved into the wastewater. | 12-27-2012 |
| 20130015127 | Method of Wastewater Treatment and Apparatus for its Realization in Sequencing Batch ReactorsAANM Topol; JanAACI PragueAACO CZAAGP Topol; Jan Prague CZ - The method of wastewater treatment and the method-applying apparatus in the sequencing batch reactors, where after separating the activated sludge from the treated water the treated water is drawn off via a decanting apparatus from the sub-surface layer of water in the reactor. The decanted water is conveyed by the decanting apparatus to a separate tank, which is separated in a watertight way from the inside of the reactor. The treated water is pumped off from the separate tank to the outlet by the air-lift pump, the inlet of which is located at the level corresponding to the delivery yield of the air-lift pump. The submerged inlet part of the decanting apparatus moves vertically alongside with the fluctuating water level in the reactor. | 01-17-2013 |
| 20130118977 | Process and Apparatus for Gas-Enriching a Liquid - Methods and apparatuses are described for enriching a first liquid with a gas and introducing the gas-enriched first liquid into a second liquid. In an embodiment, the apparatus comprises a vessel containing the gas at an elevated pressure, a liquid fluid inlet into the vessel such that the first liquid enters the vessel and becomes enriched with the gas, a variable internal valve defining an opening through which the gas-enriched first liquid flows after exiting the vessel, the internal valve opening adapted to generate bubbles of the gas within the gas-enriched first liquid as the gas-enriched first liquid flows therethrough, and a tube through which the gas-enriched first liquid flows into the second liquid, the tube comprising an inlet section comprising an inlet, a coiled section fluidically coupled to the inlet section, an outlet section fluidically coupled to the coiled section, and an outlet fluidically coupled to the outlet section, the tube adapted to maintain the bubbles of the oxygen-containing gas generated within the gas-enriched first liquid by the valve means. | 05-16-2013 |
| 20130134092 | WASTEWATER TREATMENT APPARATUS TO ACHIEVE CLASS B BIOSOLIDS USING CHLORINE DIOXIDE - Disclosed herein are systems and processes for treating a Waste Stream comprising biosolids, the Waste Stream provided at varying flow rates and solids concentrations so as to achieve an SOUR of 1.5 mg O | 05-30-2013 |
| 20130153494 | METHODS AND APPARATUSES FOR WATER AND WASTEWATER TREATMENT - Described herein are methods and devices for biologically treating water and/or wastewater. The methods and devices for treating waste water may be enhanced using an air-lift device which moves water and/or solids using volumes of air. This device can provide occasional surges of water using large bubbles which are able to move great volume of liquid while minimizing dissolved oxygen transfer to the surrounding liquid. Use of the devices and processes herein provides a simple, eloquent approach to waste water treatment with less operation and maintenance costs than conventional devices and/or processes. | 06-20-2013 |
| 20130228512 | High Performance Nitrifying Sludge for High Ammonium Concentration and Low Temperature Wastewater Treatment - Compositions of bacteria which are effective for the nitrification of wastewater, particularly at low temperatures, are described. The compositions are comprised of 35 strains or populations of at least partially characterized isolated bacteria. These compositions may be used to treat wastewater contaminated with animal fecal waste and/or ammonia. In use, wastewater is contacted with the bacterial composition of the invention under aerobic conditions and for a period of time effective to oxidize ammonia therein. | 09-05-2013 |
| 20130256221 | DISSOLVED AIR FLOTATION AND EQUALIZATION REACTOR WASTEWATER TREATMENT TANK - Wastewater treatment tank for achieving hydraulic flow equalization and high efficiency soluble biological oxygen demand (BOD) removal. The wastewater treatment tank provides a compact arrangement of at least one dissolved air flotation (DAF) cell and an equalization reactor cell. The tank achieves regulatory wastewater pretreatment requirements for reducing total BOD concentrations below 250 to 300 mg/L. | 10-03-2013 |
| 20130256222 | METHODS FOR ENHANCING A WASTEWATER TREATMENT PROCESS - Methods 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 flocs and weighting agent to impregnate the weighting agent into the biological flocs to form weighted biological flocs. A weighting agent recovery subsystem is configured to recover the weighting agent from the weighted biological flocs and reintroducing the recovered weighting agent to the weighting agent impregnation subsystem. | 10-03-2013 |
| 20130256223 | BIOLOGICAL WASTEWATER TREATMENT AND REUSE UTILIZING SULFUR COMPOUNDS AS ELECTRON CARRIER TO MINIMIZE SLUDGE PRODUCTION - Biological wastewater treatment of wastewater is performed by oxidizing organic carbon with sulfur or a sulfur compound as an electron carrier, and reducing the sulfur or sulfur compound to sulfide. The sulfide is oxidized with nitrate or oxygen. If necessary, ammonia is oxidized to nitrate and then reduced to nitrogen gas. The process is effective for saline waste water facilities, as well as non-saline waste water facilities. | 10-03-2013 |
| 20130256224 | Tanning wastewater treatment and reuse apparatus and method therefor - A tanning wastewater treatment and reuse apparatus includes a coarse filter, a regulation pool, a hydraulic sieve, a desulfurization pool, a first nanocatalytic electrolyzer, a flocculation pool, a first settling pool, a flotation device, a biochemical pool, a second settling pool, a second nanocatalytic electrolyzer, a fine filter, and a compressor. Also provided is a tanning wastewater treatment and reuse method includes the steps of desulfurization, first nanocatalytic electrolysis, flocculation, biochemical treatment, second catalytic electrolysis, and filtration. The invention allows high COD | 10-03-2013 |
| 20130319939 | Modular Precipitation and Oxidized Water Treatment - A modular system for reclamation of a fluid includes a cavitation reactor operative to mechanically oxide the fluid and an ion precipitation system that receives the oxidized fluid from the cavitation reactor and thereafter introduces one or more ions at various locations to initiate precipitation of select materials. The system and associated methodology further includes injecting dissolved air and emulsion breaking chemistry into the fluid before cavitation, coalescing emulsified particulates from the fluid and saturating the fluid in an air saturation chamber that is operable to form a microbial filter. | 12-05-2013 |
| 20140076802 | OPERATING METHOD FOR AIR DIFFUSION APPARATUS - An operating method for an air diffusion apparatus is provided. The apparatus has an air diffusion unit disposed within an activated sludge aeration tank and a gas supply unit. The air diffusion unit is configured to equip one or more air diffusion pipes disposed substantially horizontally. The air diffusion pipe has a plurality of air diffusion holes on a vertical upper portion and one or more sludge passage holes on a lower portion. Gas is supplied from the gas supply unit to the air diffusion unit so that a pressure head ΔH of each air diffusion pipe has a value of 0.2 to 0.9 times an inner diameter d | 03-20-2014 |
| 20140076803 | "IN-SITU" BALLAST WATER TREATMENT METHOD AND SYSTEM - A method and system for ballast water treatment is provided for a vessel with a ballast water tank system that pumps water from a local environment through a conduit into at least one tank on the vessel. The water contains aerobic micro-organisms from the local environment. Oxygen-containing gas is introduced into the water as it is pumped through the conduit. Living organisms are added into the water with the oxygen-containing gas introduced therein. As a result, the tank receives a mixture of the water with the oxygen-containing gas introduced therein and the living organisms added thereto. The living organisms are selected to consume (i) the aerobic micro-organisms, (ii) oxygen dissolved in the water, and (iii) food sources for the aerobic micro-organisms contained in the water. A vacuum is applied to the tank's ullage space at a point in time after the mixture is received in the tank. | 03-20-2014 |
| 20140116939 | METHOD FOR WASTEWATER TREATMENT BY URINE SEPARATION, SEAWATER ADDITION, AND NITRIFICATION AND IN-SEWER DENITRIFICATION - A method for wastewater treatment which comprises (a) separating and/or collecting urine from the wastewater for pretreatment, (b) removing phosphorus from urine using seawater, (c) optionally oxidizing nitrogen from urine, and (d) discharging the phosphorus-removed and/or nitrogen-oxidized urine to a sewer. | 05-01-2014 |
| 20140144839 | APPARATUS AND METHOD FOR CULTIVATING MICROALGAE USING EFFLUENT FROM SLUDGE TREATMENT - Disclosed herein are an apparatus and method for cultivating microalgae using effluent from sludge treatment. The apparatus includes an advanced sewage treatment apparatus, a sludge treatment apparatus and a microalgae cultivation apparatus, the sludge treatment apparatus including: a first aerobic reactor which is operated under aerobic conditions and serves to ferment sludge; a second aerobic reactor which is operated in a state in which air is injected in an amount larger than that in the first aerobic reactor, and serves to increase the fermentation activity of microorganisms in the sludge and degrade the sludge; a membrane bio-reactor (MBR) which serves to receive effluent from the second aerobic reactor and biologically remove high-concentration organic matter from the effluent by the action of aerobic microorganisms while removing total suspended solids using a membrane, wherein the effluent discharged from the MBR reactor is supplied to the microalgae cultivation apparatus. | 05-29-2014 |
| 20140183129 | MIXING SYSTEMS AND METHODS OF MIXING - A system for mixing and mixing processes and structures are disclosed. In addition a nozzle used for mixing is disclosed. | 07-03-2014 |
| 20140231346 | Accelerated Processing - This method improves and controls ex-situ or in-situ, aerobic or anaerobic digestion of organic materials and toxic or damaging compounds through increased control of multiple chemical and biological settings and conditions. The ability to control flow, natural processes, and biological activity, while adjusting to individual site conditions, offer many opportunities to modify results. Large quantities of modified or adjusted organisms are developed and utilized. Identification and strategic manipulation of the multiple elements of the system result in performance modifications. Energy is utilized to manipulate characteristics of a natural degradation system. | 08-21-2014 |
| 20140238934 | SYSTEM AND METHOD FOR REMEDIATION OF WASTEWATER INCLUDING AEROBIC AND ELECTROCOAGULATION TREATMENT - The present invention relates to a system or method for the remediation of wastewater with a treatment media in tandem with an electrocoagulation system. The system and method also include cleaning elements for cleaning distribution lines within the system and for cleaning the electrocoagulation system. | 08-28-2014 |
| 20140284273 | DECANTED BIO-BALANCED REACTOR AND METHOD - A wastewater treatment system is provided having a reactor, first and second bio media and an aeration system. The first bio medium is located proximate an inlet end of the reactor and extends vertically between a top water level and the reactor's floor. The second bio medium is located proximate an outlet end of the reactor and extends vertically between a bottom water level and the reactor's floor. The media are adapted for retaining solids within the reactor as clarified water is withdrawn after treatment. The first bio media is further adapted to act as a baffle thereby causing wastewater to flow generally uniformly into a primary reactor zone. The aeration system includes a plurality of diffusers, some of which may be located adjacent or underneath the bio media and are adapted for promoting the shaking the bio media when activated in order dislodge excessive biomass therefrom. | 09-25-2014 |
| 20140305866 | SYSTEM FOR DECOMPOSITION OF ORGANIC COMPOUNDS AND METHOD OF OPERATION - Disclosed an aerobic system for decomposition of aqueous organic waste, which comprises at least a first processing container including sides, an upper opening, a substantially horizontal floor, an inlet, an outlet, at least one channel arranged at the floor having an upwardly opening mouth, a ventilating pipe extending above the mouth, and a pump connected to the pipe and arranged to provide a supply of a gas to the ventilating pipe. | 10-16-2014 |
| 20140311973 | Method and Apparatus for Treatment of Water-Borne Contaminants - A lightweight, bioplastic, mobile, floating oil spill mechanical/biological recovery system is dimensionally compact, and quick to assemble. The floating platform can be readily positioned within any waterborne oil/contaminant spill area. After assembly, this platform or apparatus can be directed by either a hand-held digital radio control transmitter or GPS directed mechanism. A lower, multi-roller slip-on belt is designed to be mounted over a circular base support aeration hub assembly with alternating/spaced slotted ring water drainage separators. The belt and aeration assemblies dip bioaugmentation product into the contaminant site thereby exposing microorganisms to both oxygen and target contaminant for treatment and metabolism. Various mechanisms for enhancing metabolic activity of the bioaugmentation product operate in tandem with the primary belt and aeration assemblies to promote effective contaminant metabolism and overall treatment regimes. | 10-23-2014 |
| 20140332465 | METHOD AND APPARATUS FOR TREATING OIL CONTAINING WASTEWATER - It relates to a treatment of oil-containing waste water using a membrane biological reactor membrane biological reactor biological reactor (MBR), and it is to provide a new treatment apparatus which is capable of suppressing a reduction in biological treatment activity and suppressing an effect on a separation membrane. | 11-13-2014 |
| 20140339157 | Systems and Methods for Achieving Partial Nitrification in a Biological Nitrogen Removal Reactor - Methods of controlling a nitrification reaction in a biological nitrogen removal reactor to favor partial nitrification of ammonia to nitrite instead of complete oxidation of ammonia to nitrate are disclosed. In some embodiments, the methods include the following: maintaining a pH in the reactor within a range that promotes growth of ammonia oxidizing bacteria; maintaining a concentration of dissolved oxygen in the reactor within a range that limits the ammonia oxidizing bacteria from completing nitrification; selecting an operational solids retention time within a range suitable for maintaining increasing concentrations of the ammonia oxidizing bacteria in the reactor while reducing concentrations of nitrite oxidizing bacteria in the reactor; and increasing a concentration of free ammonia in the reactor thereby inhibiting growth of the nitrite oxidizing bacteria in the reactor. | 11-20-2014 |
| 20140360934 | AERATION OF LIQUID SUITABLE FOR AQUEOUS WASTE TREATMENT - Aerator kit comprising a body defining a fluid-flow channel, and a nozzle insert disposed inside said body as such forming together a venturi aerator which is useful for aerating aqueous waste. The aerator can be used submerged as a part of an aerobic digester, in which gas or air flow into the nozzle inlet while drawing liquid through a peripheral hole in the aerators body and cause mixing. The aerator can be also used as an above ground aerator in which liquid is pumped into the nozzle inlet while drawing air through said peripheral hole. In an another embodiment the aerator could be also used for adding additive to a gas or liquid. | 12-11-2014 |
| 20150068977 | INTEGRATED MEMBRANE SYSTEM FOR DISTRIBUTED WATER TREATMENT - Integrated membrane treatment systems for treatment of an aqueous solution. In embodiments, components, such as an MBR, are integrated with means to recover energy from the system, for example from an RO concentrate, to operate the other components. In embodiments including biological treatment, RO is integrated with other components, such as an MBR with the ROs ability to remove inorganic nitrogen enabling biological treatment to be performed with only partial nitrification and the MBR operated without active pH control. In embodiments, RO is integrated with a chlorine generator to convert chlorides present in the RO concentrate for an in-situ source of oxidizing biocides for disinfection purposes. Chloramines may be generated in-situ from residual ammonia and chlorides in the RO reject. In embodiments, carrier media is employed in a membrane tank to enhance removal of residual organics by the MBR and to also improve effectiveness of membrane scouring. | 03-12-2015 |
| 20150108068 | MICROBIAL FUEL CELL AERATOR - A device for mixing and aerating a body of water, the device includes a microbial fuel cell comprising an anode and a cathode; an electricity management subsystem electrically connecting the anode and the cathode; and a mixing subsystem electrically connected to the electricity management subsystem. The device can be used to mix or aerate a body of water containing organic material while simultaneously reducing the requirements for aeration. The body of water may provide organic material to the microbial fuel cell to produce electricity to power the mixing subsystem. | 04-23-2015 |
| 20150122732 | METHOD OF TREATING WATER USING PETROLEUM COKE AND A pH-LOWERING AGENT - A process for treating water containing dissolved organic compounds, including naphthenic acids, for example, oil sands process water, using petroleum coke is provided, comprising: removing petroleum coke from a coking operation; forming a petroleum coke/water slurry by adding the water containing dissolved organic compounds to the petroleum coke; adding a pH-lowering agent to the petroleum coke/water slurry either during slurry formation or after slurry formation to form a treated petroleum coke/water slurry; and allowing the treated petroleum coke/water slurry to mix for a sufficient time in a carbon adsorption reactor to allow the petroleum coke to adsorb a substantial portion of the dissolved organic compounds from the water. | 05-07-2015 |
| 20150360981 | PROCESS FOR TREATING EFFLUENTS CONTAINING NITROGEN IN AMMONIUM FORM, AND EQUIPMENT FOR IMPLEMENTING THIS PROCESS - Process for treating effluents containing nitrogen in ammonium form, using a sequential biological reactor ( | 12-17-2015 |
| 20160016833 | OPERATING METHOD FOR ORGANIC WASTEWATER TREATMENT DEVICE AND ORGANIC WASTEWATER TREATMENT DEVICE - An organic wastewater treatment apparatus includes (a) a treatment tank, (b) a plurality of membrane separation devices immersed in the treatment tank, where each membrane separation device is provided with a diffuser device and a permeated liquid extracting device, (c) a plurality of sludge characteristics measuring devices dispersedly disposed in the treatment tank, and (d) a controller. An operating method divides the treatment tank into a plurality of regions, and sets at least one of an amount of air diffusion and a flow rate of permeated liquid for each membrane separation device based on a measured value of the sludge characteristics measuring device disposed in the corresponding region. The controller sets at least one of the amount of air diffusion and the flow rate of permeated liquid based on the measured value of the sludge characteristics measuring device in a vicinity of which the membrane separation device is disposed. | 01-21-2016 |
| 20160060149 | Systems And Methods For Sterilizing Liquid Media - Systems and methods for sterilizing liquid media such as saline water using filtration and ozonation. | 03-03-2016 |
| 20160096756 | METHOD FOR USING A SLUDGE CLASSIFYING PRESS TO TREAT SLUDGE - A method for treating sludge comprising the steps of a) separating the sludge into a BOD-rich portion and a BOD-poor portion; and b) adding flocculant to the BOD-rich portion after the separating step. A currently preferred method comprises the steps of a) first passing the sludge through a sludge classifying press to create a classified sludge; and b) adding at least one flocculent to the classified sludge after the passing step. The method may comprise the further steps of separating grit from the sludge by preliminarily passing the sludge through a grit separator prior to the first passing step; and/or thickening the classified sludge by second passing the classified sludge through a sludge thickener after the adding step. | 04-07-2016 |
| 20160115057 | FILTRATION DEVICE AND FILTRATION METHOD USING THE SAME - The present invention provides a filtration device comprising a filtration tank that stores a liquid to be treated, the liquid containing a microorganism; an immersion-type filtration module that is disposed in the filtration tank and that includes a plurality of separation membranes; and a first gas supply unit that generates bubbles for cleaning the separation membranes from below the immersion-type filtration module. The filtration device further includes a second gas supply unit that is arranged in a lower portion of the filtration tank so as to be spaced apart from the first gas supply unit and that generates bubbles for supplying oxygen. A bubble-rising prevention zone is formed above the second gas supply unit by the generation of the bubbles from the first gas supply unit. A downflow of the liquid to be treated is preferably present in the bubble-rising prevention zone. A turbulence flow of the liquid to be treated may be present in the bubble-rising prevention zone. | 04-28-2016 |
| 20160122213 | Systems and Methods for Achieving Partial Nitrification in a Biological Nitrogen Removal Reactor - Methods of controlling a nitrification reaction in a biological nitrogen removal reactor to favor partial nitrification of ammonia to nitrite instead of complete oxidation of ammonia to nitrate are disclosed. In some embodiments, the methods include the following: maintaining a pH in the reactor within a range that promotes growth of ammonia oxidizing bacteria; maintaining a concentration of dissolved oxygen in the reactor within a range that limits the ammonia oxidizing bacteria from completing nitrification; selecting an operational solids retention time within a range suitable for maintaining increasing concentrations of the ammonia oxidizing bacteria in the reactor while reducing concentrations of nitrite oxidizing bacteria in the reactor; and increasing a concentration of free ammonia in the reactor thereby inhibiting growth of the nitrite oxidizing bacteria in the reactor. | 05-05-2016 |
| 20160122219 | WATER TREATMENT SYSTEM AND WATER TREATMENT METHOD - This water treatment system comprises: a reverse osmosis device ( | 05-05-2016 |
| 20160152499 | WASTEWATER TREATMENT DEVICE, BACTERIA BED USED FOR TREATING FOOD WASTE AND WASTEWATER, AND WASTEWATER TREATMENT METHOD USING BACTERIA BED | 06-02-2016 |
| 20160152500 | PRODUCTION OF BIOMASS FOR USE IN THE TREATMENT OF FISCHER-TROPSCH REACTION WATER | 06-02-2016 |
| 20160167994 | TREATMENT OF WASTE WATER | 06-16-2016 |
| 20160185633 | RECOVERY OF NUTRIENTS FROM WATER AND WASTEWATER BY PRECIPITATION AS STRUVITE - The present invention generally relates to a process for converting waste to nutrients. Preferably, the subject invention relates to systems and methods for recovering nutrients from wastewaters. More preferably, the subject invention relates to systems and methods for processing anaerobically treated cellulosic stillage generated from ethanol production to recover struvite precipitate. According to the present invention, a sequential batch reactor is provided for recovery of nutrients via struvite precipitation from cellulosic ethanol stillage seeded with stillage fibrous biomass. The effect of seeding using stillage biomass as seeding decreases time for struvite precipitation and settling within the reactor. | 06-30-2016 |
| 20160200608 | WASTEWATER TREATMENT SYSTEM AND METHOD | 07-14-2016 |
| 20160376176 | Aerobic Wastewater Treatment Package With Extended Aeration - Activated Sludge - The present invention provides for sanitary sewage and industrial waste water pollution through extended aeration and activated sludge and biological treatment. Oxygen guided by suitable blowers, fertile aerobic microorganisms. Within 30 to 40 days, a dense cell mass is responsible for wastewater treatment digestion is formed. Digital timer function with automatic aeration adjusted according to the amount of raw sewage. If you increase or decrease the amount of waste, it can be reset by moving the thorns. | 12-29-2016 |
| 20220135457 | APPARATUS AND METHOD FOR RECYCLING BLACKWATER AND GREYWATER AT OIL AND GAS WELL SITES - A bioreactor for a water treatment system includes a tank configured to receive an influent liquid, a separator structure positioned in the tank, the separator structure having a frustoconical shape and defining a downwardly-facing opening proximal to or at a bottom of the separator structure, an interior of the separator structure being in communication with the tank, external to the separator structure, at least via the opening, an aeration vent positioned proximal to a bottom of the tank and configured to direct air into the tank, but not directly into the interior of the separator structure, and an effluent outlet communicating with the interior of in the separator structure, proximal to a top of the separator structure, a relatively clean effluent liquid, in comparison to the influent liquid in the tank, exiting from the separator structure via the effluent outlet. | 05-05-2022 |
