Abstract: Systems and methods for performing anaerobic digestion of biomaterials using a clarifier, a batch reactor, and/or a digester are disclosed. The clarifier performs pretreatment processing of biomaterial to improve anaerobic digestion. The batch reactor and/or the digester are coupled to the clarifier and are configured to digest the processed biomaterial. A control system for an anaerobic digestion process includes a flow control system, a temperature control system, and a totalization system. The flow control system controls the flow of biomaterial and the delivery of chemical agents to the biomaterial based on conductivity, temperature, pressure, and/or composition of the biomaterial. The temperature control system includes a heat source and heat exchangers that control the temperature of the biomaterial.

Abstract: A water treatment apparatus including one or a plurality of mixed raw water stream jet nozzles (7), a filtering tank (5) housing a filter layer (4) disposed below the mixed raw water stream jet nozzle or nozzles, the filter layer consisting of an upper layer (2) and a lower layer (3) and the upper layer containing a filter material which has a smaller specific gravity and a larger particle diameter than a filter material of the lower layer, a water collecting and distributing pipe (13) for taking out water filtered through the filter layer and supplying reverse stream cleaning water to the filter layer during reverse cleaning, filter material vibrating means for vibrating a filter material of the upper layer which includes a vibrating element (9) connected to a power source and vibration expanding element (10) which is buried in the upper layer for transmitting vibration of the vibrating element, and an overflow outlet (12) provided in the filtering tank above the filter layer.

Abstract: A liquid treatment plant has sets of membrane trains and processing trains with flow between them through channels. Means of withdrawing permeate and sludge from the trains are described. Cyclic aeration is provided to the membrane trains. Methods of foam control, backwashing and chemical cleaning are described. Single membrane trains or process trains may be isolated for various functions. An isolated membrane train may be used to thicken sludge.

Abstract: Waste water conditioning has nearly 150 years of history. During this time, a method has developed that is considered to be state of the art. While this method meets the requirements at hand, it is complicated and expensive. The novel method breaks down the rigidly entrenched method and simplifies it. In a plurality of stages, the only energy that is used is gravity, which is readily available and free of cost. Thus, an “alternative sewage treatment plant” has been developed, which has a simpler method and is less expensive in terms of investment costs and operating costs, at the same capacity, and requires only a fraction of the previous required surface area. The most important characteristic of the invention is that the novel method separates solids from waste water immediately after entering the sewage treatment plant. Mechanically purified water is much faster, easier and less expensive to purify. The paths pursued for conditioning of the sludge are also new.

Abstract: The wastewater treatment tank results in high quality effluent meeting what is referred to as “Secondary Treatment Standard. The tank deploys in combination an Facultative Aerobic Bacterial Generators (FABG) that includes a plurality of surrounding horizontally extending bacteria supporting filters disposed in a vertical array along with a second vertical filter media disposed between the FABG and the outlet port. A facultative bacteria generator and additional bacteria supporting filters are also deployed adjacent the FABG and between the second vertical filter media.

Abstract: A well water treatment system includes a first ozonation tank that receives pressurized well water and introduces ozone into that well water. The ozone causes impurities to precipitate, which settle to the sides and bottom of the first tank. Remaining water is delivered by gravity flow to a second supply tank wherein the ozone is allowed to largely if not entirely dissipate from the water. When a household or other destination requires treated water, a pump in the supply tank operates to deliver water from the tank to that destination. The pump is operably positioned within the supply tank at an intermediate water level below precipitates floating on the surface and above precipitates that have settled in the tank.

Abstract: A submerged biofiltration purifying apparatus includes a settling zone being a 3D space having open top, bottom, and two lateral sides; one or more filtering zones coupled to the two lateral sides of the settling zone, and each being a 3D space with open sides and having soft contact media connected thereto; and one or more bubble aeration units connected to bottoms of the filtering zones. The soft contact media allow biological films to grow thereon. The bubble aeration units generate air bubbles that guide sewage to flow toward the soft contact media, so that organic substances in the sewage are adsorbed to the biological films. The soft contact media are arranged at a specific angle for the sewage to naturally diffuse toward two lateral sides of the settling zone and recycle. And, purified water settles in the settling zone again to remove remaining suspended solids to achieve sewage purification.

Abstract: An aeration apparatus is immersed in diluted used seawater which is water to be treated and generates fine air bubbles in the diluted used seawater. The aeration apparatus includes: an air supply line L5 having branch pipes L5A to L5H for supplying air 122 through blowers 121A to 121D serving as discharge unit; aeration nozzles 123 including diffuser membranes 11 having slits, through which the air 122 is supplied to the aeration nozzles 123 via headers 15 of the branch pipes L5A to L5H; a water tank 140 and a supply pump P1 that are used as water introducing unit for supplying water 141 to the air supply line L5. When pressure loss of the aeration nozzles 123 increases, the aeration apparatus stops introduction of the air 122 and supplies the water 141 into the branch pipes L5A to L5H branched from the air supply line L5.

Abstract: A high throughput, positive pressure, gravity operated dewatering system for hydraulic fluids, lubricating fluids, and petroleum based fluids comprises a gravity operated dewatering chamber receiving the industrial fluid and a source of positive pressure drying air coupled to the dewatering chamber.

Abstract: A septage treatment system and process designed to eliminate liquid discharge to groundwater. The system and process use primary treatment, secondary treatment, and tertiary treatment. The tertiary treatment uses a greenhouse system to reclaim septage waste after it has gone through primary and secondary treatment. The greenhouse system fosters ecologically sound usage of septage waste to minimize the environmental impact of septage waste.

Abstract: A tank has a side wall bounded by a top and a bottom. An axis extends vertically through the tank. An inlet line for water of a first condition extends through the top with a lower end at a lower extent of the tank. An outlet line for water of a second condition has a lower end within an intermediate extent of the tank. A dispenser at the lower end of the water inlet line has apertured legs extending radially within the tank. An oscillator within the tank above the dispenser is operatively coupled to the inlet line for mixing all of the water of a first condition entering the tank through the inlet line while thereafter forwarding all of the mixed water of a first condition to the dispenser.

Abstract: Methods and systems are provided for treating wastewater to simultaneously remove nitrogen, carbon, and phosphorus. The process includes an anoxic tank that receives at least two streams, including plant influent wastewater and return activated sludge. These streams are mixed in the anoxic tank to promote phosphorus release and fermentation of particulate and dissolved organic matter. The mixed liquor is transferred to an aerated tank having low dissolved oxygen concentrations to promote development of phosphorus-release bacteria that is eventually recycled to the anoxic tank by way of the return activated sludge. Simultaneous nitrification, denitrification, and phosphorus release occur in the aerated tank. A membrane tank separates treated effluent from activated sludge in a membrane tank.

Abstract: 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 top surface of the contaminated water while the bioreactor containing inoculated carrier media is attached below. Beneficial microbial populations thrive and spread throughout the liquid medium, and consume or fix the contaminant such that the contaminant is removed from the water.

Abstract: Present invention relates to a method and apparatus for purification of water, said method comprises the steps of feeding the water into a reactor (4) through one or more inlet tubes (1) or inlet zones and feed water an substrate through carrier elements for bio film (5) which have a large protected surface (>200 m2/m3 carrier elements) and large pore volume (>60%), and that the carrier elements are fluidised for the removal of waste sludge, wherein the ratio of charge of the elements (5) by normal duty corresponds to an amount corresponding to 90%-100%, more preferred 92%-100%, and most preferred 92%-99% of the vet volume of the reactor (4), said carrier elements (5) is kept substantially at rest or hindered movement between the times surplus sludge is removed, and that the carrier elements being fluidised for removal of surplus sludge, said carrier elements (5) having a specific gravity in the area of 0.8-1.4, more preferred 0.90-1.1 and most preferred 0.93-0.

Abstract: A method and apparatus for treating slurries of organic solids is disclosed. A slurry of organic solids is admixed with hydrogen peroxide, followed by exposure to microwave irradiation resulting in the heating of the mixture and enhanced hydrolysis of the organic solids. The treated slurry of organic solids can then be further treated in a variety of downstream processes, including solid separation, digestion and fermentation. The supernatant portion of the treated slurry of organic solids can be a source from which to recover compounds such as nutrients (for example nitrogen, phosphate, potassium, magnesium, calcium) or industrial organic compounds (such as acetic acid, propionic acid, butyric acid), or as a source of readily biodegradable organic compounds for supplementing a biological wastewater treatment process, digester or fermenter.

Abstract: A screen configuration is provided for the extraction of wastewater from a wastewater reactor, while precluding the entry of biological support media. The screen may be formed as a tubular structure, and may be drum-like or have wings in a T-shaped configuration. A flow modifier within the screen may include one or more tubes extending into the screen and forming annular sections around the tubes. Flow through the screen, then, is directed around the inner flow modifier tubes and through the tubes. The resulting pressures and flow velocities are such that slot velocities through openings in the screen are generally constant along the length of the screen, and the flow is more efficiently distributed. The screen may be reduced in length as compared to conventional wastewater treatment screens.

Abstract: The invention relates to a carrier element for an aerobic biological water treatment system. The carrier element has a first end and a second end at a distance from each other, the maximum diameter of the first end being larger than the maximum diameter of the second end. It also has biofilm growing surface structures that extend from the first end to the second end and from inner part of the element towards periphery of the element and at least two support structures that encircle the growing surface structures at the periphery of the element and connect the growing surface structures to each other. The support structures define the outer boundary surface of the carrier element, whereby the support structures are spaced from each other so that apertures allowing access to the biofilm growing surface structures are formed between the support structures. The invention relates also to a water treatment system employing the carrier elements.

Abstract: A wastewater treatment system for processing borne wastewater. The treatment system having a tank with an inlet and an outlet and an access assembly residing at the top of the treatment tank. The treatment tank having an aeration chamber where oxygen is added to the wastewater to encourage bacterial breakdown of the solid waste. The treatment tank also having a clarifying chamber separated by a frusto-conical wall. The treatment tank also containing an ultraviolet disinfection system which exposes the wastewater to ultraviolet light prior to the wastewater exiting the treatment tank such that bacteria in the wastewater is neutralized prior to discharge.

Abstract: A hydrocyclone apparatus has an input tank device, a pipe device and a first separating assembly. The input tank device has an input tank. The pipe device has a first pipe having a first end and a second end. The first end of the first pipe is connected securely to the input tank. The first separating assembly has a hydrocyclone device having a hydrocyclone. The hydrocyclone is connected to the second end of the first pipe. Accordingly, the hydrocyclone can efficiently and quickly separate mud from liquid of the raw water in the input tank.

Abstract: This apparatus introduces catalysts and fluids into a media to effect remediation of contaminants, improve soil fertility and permeability, control undesirable pests, or create useful chemicals or food. The apparatus generates and releases enzymes, metabolites, and biologically active organisms. Aerobic metabolism of compounds in a media is facilitated through the transfer of fluids, such as air. The apparatus and methods provide an environment for select organisms, including refugia and nutrient substrate. The biodegradable composition of the apparatus is partially transformed by catalytic treatment. Catalysts or remediation agents are produced in-situ, for specific applications that provide a range of retention, activation, activity, and release profiles. The apparatus is placed in contact with media. Catalytic infusion of media by biological consortia, such as fungi, releases exudates that transform or biodegrade materials.

Abstract: 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 the liquid waste and an injector section that injects oxygen into the compressed liquid waste. The system further includes a driver subsystem for driving the compressor section and a control subsystem for activating and deactivating the driver subsystem.

Abstract: The present invention relates to methods of generating highly concentrated protein solutions, e.g., an antibody solution, a therapeutic protein solution, etc. The methods of the invention include membrane evaporation, such as evaporation of protein-free solvent from the protein solution, which concentrates the protein. The methods of the present invention result in protein solution concentrations not previously achievable by conventional ultrafiltration methods, e.g., protein solution concentrations of greater than about 260 grams of protein per liter of solution.

Abstract: Apparatuses, systems and processes for fluid gasification and degasification are disclosed. A fluid gasification/degasification apparatus includes housing having a central axis and at least one fluid inlet and at least one fluid outlet positioned at different axial locations along the housing. A membrane unit that includes a plurality of bundled microporous hollow membrane strands is disposed within the housing and extends in parallel to the central axis of the housing. The fluid gasification/degasification apparatus further includes one or more gas addition/removal apparatuses for facilitating at least one of: a gas addition operation and a gas removal operation. An orientation of the fluid inlet(s) and fluid outlet(s) results in a substantial portion of a carrier fluid introduced to the housing traveling in parallel along exterior surfaces of the membrane unit thereby allowing for an extended interface time between the carrier fluid and micro-bubbles of a gas supplied to the membrane unit.

Abstract: A waste water treatment system is provided that includes a basin for holding water; nitrifying and denitrifying bacteria; macroalgae; and a biobed having a at least one layer and being constructed of materials selected to provide sufficient level of pH for enabling bacterial growth. In the biobed de-nitrification and nitrification bacterial processes are separated. Oxygen produced by algae is used by the nitrifying bacteria. Water is provided continuously to the biobed at an inlet and exits the system downstream after having gone through the biobed. The system may be used with waste water in water treatment plants, domestic waste water (sewage), waste water from diverse industries, drain water from waste deposits, runoff water from roads, water waste treatment and recycling plants, agricultural and farm land and surrounding land of populated areas. The algae and bacteria are combined for symbiotic remediation of water that may be flexibly controlled to adapt to a broad range of applications.

Abstract: An aquarium which includes a tank having a pump and an under gravel filter disposed in the tank below the pump and a sediment removal system for collecting and removing sediment which passes through the under gravel filter. The under gravel filter includes a hollow bubble dispersing base plate having a perforated top surface and an overlying substrate. An air conduit is provided for introducing air into the pump. The pump is connected to the plate such as to pump water and air into the interior of the plate to thereby cause oxygenated water and bubbles to exit upwardly through the perforated top surface of the plate and into and through the substrate. The pump includes a free floating magnetic impeller. A rotational torque generating unit is provided to rotate the impeller. The rotational torque generating unit includes a magnetic drive disk and a motor for rotating the magnetic drive disk.

Abstract: A chemical/biological wastewater treatment apparatus employing rapid sludge chemical dewatering technology in conjunction with an environmental biological system for treating the separated treated wastewater by land applying it for the propagation of biosynthetic fuels and other plants; and/or passing it through aqueous plant, algae, or microbial reduction of the dissolved solids and ammonia for BOD compliance to produce water of sufficient quality to meet open stream and ocean effluent discharge requirements; and disposing of the high BTU low moisture solids.

Abstract: This invention relates to a refuse landfill leachate wastewater treatment system comprising a collection well, an adjustment tank, a filter, a comprehensive treatment system having a multi-stage anoxic/aerobic pool and a membrane biological reactor.

Abstract: A treatment method for wastewater employing sulfur dioxide and lime chemical dewatering technology in conjunction with an environmental photo biomass/algae biological treatment system growing photo biomass/algae to reduce dissolved solids, heavy metals, and ammonia in the wastewater to produce recovered treated wastewater for vegetation consumption, biofuel feedstock, and biofuel and carbon credits.

Abstract: The invention relates to a reactor for treatment of waste water for being subject to both anoxic/anaerobic and aerobic treatment within one single reactor volume. The anoxic/anaerobic reaction zone is separated from the aerobic reaction zone by a separator which also works as a hydrodynamic separator between the two reaction zones. The reactor makes it possible that the effluent water has a lower proportion of suspended solids and also that it produces less sludge than reactors of comparison. The reactor is further more energy efficient than prior art reactors. Several reactors according to the invention may be arranged in parallel so as for the inlet waste water may be treated in a modular way, and thus allowing the maintenance of the units to be facilitated.

Abstract: The present document describes a process and a bioreactor for reducing a bisphenol compound content of a wastewater using a membrane bioreactor containing a biomass in a volatile suspended solid (VSS) form where the biomass in the membrane bioreactor is operating continuously to reduce bisphenol compound content when the bisphenol compound volumetric load is below 108 g m?3 d?1.

Abstract: A dynamic filter member comprising a mass of lipophilic, hydrophobic fibers and bioremediating microbes, said filter member having a sufficient volume of interstitial areas such that water flow through said filter member is substantially unimpeded.

Abstract: A multistage immersion type membrane separator includes a liquid air separator, the liquid air separator including an outlet tube, an inlet tube, and a skirt. The outlet tube is cylindrical and has a outlet tube diameter, and the inlet pipe has an inlet pipe diameter of less than the outlet tube diameter. The inlet pipe is attached to and in communication with the outlet tube so that a mixed flow of air and liquid passing through the inlet tube is introduced into the outlet tube and flows circumferentially around the inside of the outlet tube. The inlet pipe is attached to the cylindrical outlet tube so that the inlet pipe is perpendicular to the outlet tube. The outlet tube has two ends, one end being closed and the other end being open. The skirt is attached to the outlet tube and is concentric with the outlet tube. The skirt is attached to the closed end of the outlet tube, and extends to just past the point of attachment of the inlet tube to the outlet tube.

Abstract: An aerator has a sphere, several rods that project upwardly from the sphere, and a filter that sits on the rods. The rods rest on the mouth of a vessel such as a wine glass with the sphere at or below the mouth. A liquid such as wine is poured through the filter and onto the sphere to filter and aerate the liquid before the liquid settles in the vessel.

Abstract: A method and an apparatus for separating suspended matter from liquid includes a concentrator filter that draws the liquid out of the suspension while the filter kept unblocked by a sparging filter that allows scrubbing of the concentrator filter by gas bubbles. This invention can be used to replace cross-flow filtration and centrifugation in the bioprocess industry and to reduce the volume of suspensions to concentrate the yield of the end product in the chemical industry.

Abstract: 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 material are contained by being stuffed into lengths of plastic mesh tubing, which are then formed into closed-ended socks. The socks are stacked in layers, and the water to be treated is trickled down through the layers. The socks can also advantageously be used for anaerobic and submerged treatment of wastewater.

Abstract: The invention relates to a plant and a method for the treatment and disposal of waste water containing salts and oil, in particular produced water, comprising at least one settling area for receiving the waste water and for separating oil proportions from the waste water, at least one subsequent reed bed area having plants for the uptake and degradation of contaminants in the waste water, at least one modular basin area having a plurality of utility basins, whereby a utility basin, controlled by way of distribution means, can be supplied with treated waste water from the reed bed area and/or from at least one other utility basin, and at least one saline area for the reception of the residual water from the modular basin area and for the evaporation of water and the concentration of salt.

Abstract: In treatment equipment of organic waste provided with a high temperature and pressure treatment apparatus to produce a slurried material by conducting the high temperature and high pressure treatment of the organic waste, a dehydration treatment apparatus to recover the dehydrated solid matter by conducting the dehydration treatment of the slurried material and a water treatment apparatus to conduct the purification treatment of a separated liquid separated by the dehydration treatment apparatus, the treatment equipment of organic waste is characterized by having a crusher to crush said organic waste before conducting the high pressure and temperature treatment and providing to said high temperature and pressure treatment apparatus a steam blowing means to blow steam into the organic waste in said high temperature and pressure treatment apparatus, wherein said high temperature and pressure treatment apparatus is formed as a continuous reaction tank to which the organic waste is continuously supplied and to wh

Abstract: Septic systems incorporating an ozonation system comprise one or more corona discharge ozone generators receiving air, such as atmospheric air, and having an outlet for the withdrawal of a mixture of air and ozone gas. The system also comprises a septic tank for receiving primary wastewater, and a pump tank receiving secondary wastewater effluent from the septic tank. The ozonation system includes a submersible ozone introduction pump disposed in the bottom of the pump tank, wherein the ozone introduction pump includes an impeller within a housing, the housing having an inlet and a plurality of radial outlet ports along its circumferential area surrounding the impeller. A conduit couples the outlet of the corona discharge ozone generator to the inlet of the impeller housing, wherein the ozone introduction pump reduces pressure in the conduit to draw air into the ozone generator and draws the mixture of air and ozone gas into the impeller housing for introduction into the secondary wastewater.

Abstract: Provided is a biological nitrogen removal method which includes, causing to flow a support having, on the surface portion thereof, a two-layered microbial film which holes, in the outer layer, nitrite type nitrifying bacteria or aerobic bacteria and nitrite type nitrifying bacteria as a dominant species and, in the inner layer, anaerobic ammonia oxidizing bacteria as a dominant species while being surrounded with the nitrite type nitrifying bacteria; and thereby carrying out denitrification of the water to be treated by making use of the anaerobic ammonia oxidation reaction. In the biological nitrogen removal method, a feed rate of the support (total surface area of the support per unit capacity of the reaction tank) is adjusted so that an amount of nitrous acid produced by the nitrite type nitrification reaction through the action of the nitrite type nitrifying bacteria reaches a level to inhibit a nitrate type nitrification reaction.

Abstract: This invention introduces a filtration and air supply device(3) used in an aquatic equipment(2). Said filtration and air supply device(3) comprises filtration system with air supply, including filtration box(31), water pump(33), filter cartridge(32), air pump(7), air inlet tube(8), air duct(36). The characteristics of this filtration and air supply device(3) are: Said filtration and air supply device(3) locates inside the aquatic equipment(2). Box wall(310) is with grids(312). Water pump(33) locates in one side of the filtration box(31), and filter cartridge(32) locates in the other side of the filtration box(31). Bottom slab(9) is equipped with air inlet hole(38) and water pump power cord inlet hole(40). The bottom of air inlet hole(38) connects the air pump(7) through air inlet tube(8). The upper part of air inlet hole(38) connects air outlet hole (318) through air duct(36). No-return valve(37) locates between air duct(36) and air outlet hole(318).

Abstract: Disclosed are a device for treating nitrogen and phosphorus from wastewater, including: an algal culture tank for culturing microalgae capable of treating nitrogen and phosphorus from wastewater; and a separation membrane for separating thus treated water from the microalgae, and a method for the same. According to the disclosed device and method, microalgae are cultured at high concentrations using wastewater, instead of an artificial culture medium, as a culture medium. As a result, nitrogen and phosphorus can be effectively treated from the wastewater, and the microalgae, which are useful as a biomass, may be cultured and recovered stably.

Abstract: A method of demulsifying an emulsion is provided, the method comprising an initial step of supplying the emulsion to a fluid processor passage (14) having an inlet (16) and an outlet (18), wherein the cross sectional area of the passage (14) between the inlet (16) and outlet (18) does not reduce below the cross sectional area at the inlet (16). A transport fluid is supplied from a transport fluid source (60) to a transport fluid nozzle (34) which circumscribes the passage (14) and opens into the passage (14) intermediate the inlet (16) and the outlet (18). The transport fluid is accelerated through a throat (38) of the transport fluid nozzle (34), the throat (34) having a cross sectional area which is less than that of either the nozzle inlet (36) or nozzle outlet (40).

Abstract: A membrane element 36 includes filtration membranes 45 on the flat part of the membrane element 36. Spacing members 60 keep spacing S between the filtration membranes 45 between the membrane elements 36 when the membrane elements 36 are arranged with the filtration membranes 45 opposed to each other. The spacing members 60 each have spacer sections 61a and 61b that keep the spacing S between the filtration membranes 45 between the membrane elements 36 in the direction of a membrane surface cleaning stream that flows along the surface of the filtration membrane 45.

Abstract: A system and method for oxidation treatment of water in which ozone gas is dissolved in water by passing a mixed gas-liquid stream through a monolith at an elevated pressure that is close to the preferred gas output pressure for an ozone generator. The monolith is preferably contained at least partially within a gas-liquid separator vessel. Advanced oxidation is optionally provided by injecting hydrogen peroxide and/or embedding a catalyst on the monolith. At least a portion of the treated water is preferably recycled in order to increase total ozone dosing in the effluent stream.

Abstract: The present invention relates to an upstream ozone contact tank for removing residual ozone. The upstream ozone contact tank comprises an inlet through which purified raw water flows, at least one contact chamber, at least one reaction chamber, an upstream contact chamber, and an outlet that discharges ozone-treated raw water. Especially, the invention provides an upstream contact chamber between the reaction chamber and outlet, wherein the upstream contact chamber includes carbonaceous filter media mounted on a porous plate. An openable gate unit is installed at the lower part of a panel partitioning a final reaction chamber and the upstream contact chamber and controls flow rate. Additionally, the invention enables upstream flow of the raw water flowing into the upstream contact chamber from the final reaction chamber so that the raw water may pass through the carbonaceous filter media upwardly.

Abstract: Disclosed is a filtering system and method which facilitates to maximize cleaning efficiency, minimize heat energy consumption for cleaning, and shorten cleaning time by a concentrated heating only in a filtering membrane for a maintenance cleaning or recovery cleaning, wherein the filtering system comprises a membrane module including a filtering membrane; an air supplying means for cleaning the filtering membrane; and a heater for heating air supplied from the air supplying means.

Abstract: The invention concerns a process for removal of organics in liquids, especially dilute, toxic organics in water, wherein the liquid is contacted with microcapsules containing oxidizing agents, in combination with a photo-catalytic membrane. The invention is also related to a system for removal of organics in liquids.

Abstract: Disclosed herein is an advanced wastewater treatment device. The device includes a wastewater treatment bath having an anaerobic bath in which phosphorus is discharged, an anoxic bath in which denitrification of nitrate nitrogen is performed, and an aerobic bath in which decomposition and nitrification of organic matter is performed. A first movable divider separates the anaerobic bath from the anoxic bath and is movably provided in the wastewater treatment bath to change relative volume of the anaerobic and anoxic baths. A second movable divider separates the anoxic bath from the aerobic bath and is movably provided in the wastewater treatment bath to change relative volume of the anoxic and aerobic baths. A divider moving unit moves the first and second movable dividers. An air supply unit includes air nozzles, an air pump, and valves. A recycling unit recycles activated sludge of the aerobic bath to the anoxic bath.

Abstract: A computer-implemented system for designing a pressure-dosed drain field comprising: a screen that allows a user to specify length and diameter for pipes that comprise the forcemain and discharge assembly, specify the pumping liquid level and discharge elevation, select the number of laterals and enter a specified residual pressure, enter or select a coefficient to be used in calculating friction losses, and enter the diameter and length of each manifold segment; a minor loss screen that calculates minor losses based on fitting selections made by the user; a pump file; a tabulated results screen; a gauge screen; and system and pump curves. A computer-implemented method of using the above system to design a pressure-dosed drain field. The purpose of the system and method is to enable an engineer to design a pressure-dosed drain field that will meet regulatory requirements for the system flow differential.

Abstract: 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 surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (6) or a set of membrane modules (5) and a device (11) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes (6) to dislodge fouling materials therefrom.