Abstract: The present disclosure relates to water environment governance technology, and particularly discloses an urban river/lake water environment multi-interface governance and restoration method. The method is a multi-interface coordinated governance and restoration method based on “control for bottom, regulation for middle and governance for top”, including: “control for bottom”—controlling the emission of sediment nutritive salts and the dormancy and recovery of algae; “regulation for middle”—regulating primary productivity in a water body to inhibit the recovery of the algae; and “governance for top”—reducing nitrogen and phosphorus nutrients of an air-water interface to control the reproduction and growth of the algae. In the present disclosure, the water body governance and restoration technology based on interface coordination can effectively inhibit the outbreak of cyanobacteria and avoid extreme conditions in the ecosystem.

Abstract: A water aeration system powers an air pump held in an encasement with a solar panel mounted directly or indirectly to the encasement or to the mounting pole supporting the encasement above a ground surface. An air conduit directs pumped air to one or more disc diffusers submerged in the body of water to be aerated. The disc diffuser(s) are supported by a floating platform that is suspended from a buoy or float so that the disc diffuser(s) are held at a desired depth below the water surface.

Abstract: A system and a method for the recovery of carbon dioxide from a gas containing it. The system of the invention includes: pressurizing means for pressurizing the gas, an absorption tank for absorbing into water the carbon dioxide contained in a gas pressurized with the pressurizing means, a desorption tank for desorbing from water the carbon dioxide absorbed in water, means for circulating water from the absorption tank into the desorption tank and from the desorption tank back into the absorption tank, and recovering means for the recovery of carbon dioxide capable of being desorbed from the water. The system's absorption tank houses an agitator with a function of enabling water to circulate in the absorption tank by ejecting it into an air space of the absorption tank and by spreading in the absorption tank's air space over an area as extensive as possible.

Abstract: A device and method for injection of oxygen-rich gas into a body of liquid with oxygen recycling are disclosed. The device comprises a rotary hollow shaft vertically passing through a float partially immersed in the liquid, an impeller attached to the lower end of the rotary hollow shaft, a columnar structure, surrounding the rotary hollow shaft, mounted on the bottom side of the float and vertically extending into the liquid, a gas diffusion chamber formed by the columnar structure, the float and the liquid surface under the float, and a gas injection conduit passing through the float for delivering the oxygen gas into the gas diffusion chamber, wherein a vacuum is generated in the body of the liquid around the impeller when the impeller is driven to rotate, so that the oxygen-rich gas in the gas diffusion chamber is sucked into the body of the liquid and mixed therein.

Abstract: An apparatus for locating a center of gravity of a workpiece and forming a bore in the workpiece, the apparatus including a housing having a base configured to support the apparatus on a surface, a mounting plate, an X-axis plate slidably disposed on a first side of the mounting plate opposite a second, base-facing side of the mounting plate, a Y-axis plate slidably disposed on the X-axis plate, a holder coupled to the side of the Y-axis plate opposite the X-axis plate, wherein the holder is configured and operable to receive and retain the workpiece, a securing device operable to releasably secure the workpiece in the holder, at least two distance sensors positioned adjacent the holder, an elongated tool mounted within the housing axially aligned with central apertures formed in each of the mounting plate, Y-axis plate and X-axis plate, wherein the elongated tool is operable to move reciprocally and rotatably, and motors operable to move each of the Y-axis plate, X-axis plate and elongated tool.

Abstract: An air infusion aeration system includes a submersible downdraft tube that carries fluid from its inlet opening to the outlet opening vertically above the inlet opening. The system includes an impeller coupled to the outlet opening and configured to: draw fluid into the inlet opening and provide the drawn fluid into a discharge pressure manifold (DPM) as a fluid stream. The system includes a turbo blower that injects air into the DPM, and the DPM, which includes a center portion and a smaller diameter end portion at opposite ends of the center portion. The DPM is configured to: reduce pressure of the fluid stream at a center of the DPM; within the end portions, receive the air injection into the pressure-reduced fluid stream thereby infusing the injected air into the fluid steam; and forcibly discharge the air-infused fluid stream down toward the body of fluid.

Abstract: A method comprises steps for (a) providing a liquid in a container; (b) flowing a gas to a volume within the liquid, wherein the volume is at least partially submerged in the liquid; and (c) repeatedly increasing and decreasing the volume, wherein the cycles of increasing and decreasing generates a pulsed aerated flow, wherein at least one of the pulsed aerated flow is released within the container and the pulsed aerated flow is released outside the container.

Abstract: Systems and methods for treatment of wastewater in waste processing ponds and other enclosed bodies of water are provided. An aerator are configured to include a first set of concentric air hoses disposed at a first position between the water outflow lip and the water intake, the first set of concentric air hoses being in fluid communication with an air inlet disposed at a position on the upper float chassis above the surface level of the water; and a second set of concentric air hoses disposed at a second position between the water first set of concentric air hoses and the water intake, the second set of concentric air hoses being in fluid communication with the air inlet, wherein the first set of concentric air hoses and the second set of concentric air hoses emit jets of air bubbles into the water column between the water intake and the water outflow lip.

Abstract: A method and apparatus for vectoring flow control and aeration of a liquid medium, includes a dome supported by a flotation device, a lower housing supported by said flotation device, said lower housing connected to said dome, wherein a space is defined under said dome and above the flotation liquid, an aeration apparatus positioned within said space and partially submerged in the flotation liquid, wherein said aeration apparatus comprises one or more parallel shafts, at least one first disc positioned axially on one of said shafts, at least one second disc positioned axially on another of said shafts, wherein said second disc is interleaved relative to said first disc, and wherein a surface of said first disc rotates in a direction opposite a surface of said second disc relative to each other resulting in a mixing area therebetween, and a discharge chute configured to discharge the liquid medium.

Abstract: An apparatus for removal of contaminants from water includes an openable enclosure with one or more inlet openings through the sides for admitting water and debris into the enclosure. Intake modules attached to the outer surface of the enclosure draw water from the enclosure through an intake conduit and out an upper port in the side of the intake module. A pump module adjacent to the intake module has a side port corresponding to the upper port of the intake module so that water is drawn by a pump from the intake module and exhausted through an outlet channel of the pump module. A snorkel attached to the pump module with its lower end located adjacent to the pump propeller draws air down into the snorkel and into a fitting disposed below the pump propeller for injection into the enclosure.

Abstract: An aeration ship including a ship body, a ship bottom, and an aerator. The aerator includes an air cylinder having an upper section and a lower section. The upper section of the air cylinder is fixed on the ship body, and the lower section of the air cylinder penetrates the ship bottom and extends downwards.

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: 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 upper end, at least one inlet adjacent the lower end, and at least one outlet adjacent the upper end, a substantially spherical housing surrounding the riser, the housing comprising at least one opening in a lower portion of the housing, the housing enclosing a chamber, a motor coupled to the housing, a shaft coupled to the motor, the shaft extending downward from the motor within the riser, the shaft being in general axial alignment with the riser, at least one propeller coupled to the shaft, and a biomedia material within the chamber.

Abstract: The present invention relates to a floating filter module installed in a water treatment apparatus, such as in a public water treatment plant, a village water supply facility, a public sewage treatment plant, a wastewater treatment plant, or a village sewage treatment plant, in order to remove contamination particles.

Abstract: The buoyant aerator with support legs is disposed in a body of water and supplied with air from a remote source. The remote source may be land-based or based upon a floating vessel. An air supply line extends from the remote air source to the aerator, the supply line being supported by one or more rigid poles or columns anchored into the floor of the body of water. The entire aerator structure floats to hold the aerator at a constant level and is held in position by restraining cables. A plurality of rigid support legs extends from the periphery of the float to support the aerator in conditions where the water level drops below the height of the aerator as defined by the vertical distance between the float and the support pads of the legs.

Abstract: The aerator air distribution manifold has a central plenum disposed at the lower end of a concentric rigid downpipe or duct, and a radial array of diffuser tubes extending from the plenum. Since the aerators are buoyant, the aeration tubes are deployed at a constant, uniform depth below the surface of the water at all times, regardless of the water level. All of the aerator manifolds receive their air supply from a remotely disposed air source. The air source may be based on shore, or may be based upon a ship or other floating vessel. A flexible air supply line or hose extends from the air supply to each of the buoyant aerators, the hose being supported by one or more rigid columns or poles anchored into the bottom of the body of water in which the aerators are placed.

Abstract: The anchored aerator has a non-buoyant sunken base and a plurality of rigid guide columns extending upward therefrom. A toroidal float is captured between the guide columns, and rises and descends with changes in water level. A down tube passes through the center of the float. A diffuser having a number of radially extending diffuser pipes is installed at the lower end of the down tube. Air is supplied from a remote source, either land-based or based upon a floating vessel. The remote source may supply air to more than one aerator. An air supply line extends from the remote air source to each aerator. Each supply line is supported by one or more rigid columns anchored into the floor of the body of water. The primary aerator structure floats to hold the aerator at a constant level, and is held in position by restraining cables.

Abstract: 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 laterally directed openings into the chamber adjacent to an air inlet. The water moving out the laterally directed openings of the stand pipe, mixes with air drawn in through the air inlet to oxygenate the water, and the oxygenated water exits the chamber into the body of water through one or more water outlets in the lower portion of the chamber due to the head developed by the inflow of water into the chamber. The outward flow of water from the chamber can cause a toroidal or other desired flow of water within the body of water surrounding the water treatment apparatus.

Abstract: Water circulation systems with air stripping arrangements to treat and remove undesirable disinfectant byproducts from potable water in municipal water tanks, ponds, and other bodies of water. The systems include a flotation platform, dish, draft tube, and an impeller to draw water from the depths of the tank up through the draft tube to be discharged outwardly of the dish to create a primary circulation pattern and an induced, inner or secondary circulation pattern. Each system additionally includes an air stripping arrangement positioned adjacent and about the upper portion of the draft tube and adjacent an upper portion of the secondary flow. The air stripping arrangement includes a plurality of submerged sets of air manifolds wherein pressurized air is supplied to the air manifolds and driven out of them in bubbles to create a treatment zone immediately above each set of manifolds.

Abstract: The water aerator using a compressed gas container is a self-contained unit having a float and a container of compressed gas (e.g., air, oxygen, etc.) installed beneath a perforated diffuser plate that, in turn, is positioned below the float. High-pressure gas from the container flows through a pipe or tube to a regulator valve and pressure gauge at the top of the pipe. A larger diameter low-pressure pipe or tube is placed concentrically about the high-pressure pipe. Regulated low-pressure gas flows down through the outer low-pressure pipe to a dispensing nozzle below the diffuser plate, whereupon the gas flows upward and is broken up by the perforations in the diffuser plate to form smaller aeration bubbles. An electrical power source, pressure switch, and light may be provided to indicate when the compressed gas container is depleted. The device may be motorized.

Abstract: An aeration device adapted for the introduction of gas into a liquid medium is provided, including an elongated primary distribution member with a proximal end adapted to be connected to a gas source and a distal end adapted to be immersed into the medium. Additionally, at least one aeration member is connected to the primary distribution member at a location on the distribution member spaced from the proximal end thereof and being in fluid communication with the distribution member, adapted for bringing the gas into a state entrappable within the liquid medium. Also, a flotation member is provided, mounted onto the primary distribution member and adapted to assume various positions along the distribution member according to the level of the liquid medium. An aeration system is also provided, the system including an array of aeration devices as described above.

Abstract: The water aeration capsules provide a quick and highly portable system for aerating polluted water. The capsules contain bubbles of air, oxygen, and/or other gas(es) surrounded by a water soluble shell or membrane of a suitable substance, e.g., various salts, sugars, water-soluble polymers, such as polyvinyl alcohol. The capsules are ballasted to make their specific gravity greater than the water they displace. The ballast may comprise any non-toxic metal, sand, clay, or other non-organic material, and/or fish bait or other food for aquatic animals. Magnetically attractive ballast elements may be provided, and a magnetic sheet may be placed on the bottom of a smaller body of water to enhance the settling of the capsules. Various means of dispensing the capsules from various mobile carriers are also disclosed, including dispensing by hand from shore or by a diver, from a small boat or larger ship, and/or from aircraft.

Abstract: 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 laterally directed openings into the chamber adjacent to an air inlet. The water moving out the laterally directed openings of the stand pipe, mixes with air drawn in through the air inlet to oxygenate the water, and the oxygenated water exits the chamber into the body of water through one or more water outlets in the lower portion of the chamber due to the head developed by the inflow of water into the chamber. The outward flow of water from the chamber can cause a toroidal or other desired flow of water within the body of water surrounding the water treatment apparatus.

Abstract: A diffuser assembly with a buoyancy vessel and a chamber for buoyantly raising the diffuser assembly for maintenance work. The diffuser assembly has a support structure, diffusers connected to the frame, and a buoyancy vessel positioned on the frame, capable of alternating between a state of buoyancy or ballast.

Abstract: Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.

Abstract: A water treatment apparatus includes a first fluid channel that can circulate contaminated water in the water body, a first inlet that draws the contaminated water into the first fluid channel, and an outlet that allows the contaminated water to exit the first fluid channel. A second fluid channel installed with a filter therein can filter contaminated water in the water body to produce a filtered water flow. A fluid transport apparatus can draw the contaminated water through the first fluid channel and the second fluid channel. A flow control system allows water to flow in a predetermined angular range while blocking at least a portion of the remaining angular range in at least one of the first inlet and the outlet to achieve mixing coverage with different aspect ratio. The position of the outlet can be adjusted to optimize the flow rate and pattern.

Abstract: A system for forming mini microbubbles has a motor, a shaft attached to the motor, a displacer attached to the shaft for mixing a media with a liquid, a discharge plate positioned adjacent the displacer, a housing adjustably attached to the discharge plate, and a media chamber fluidly connected with the discharge plate. The motor rotates the shaft. The discharge plate has a discharge hole formed therein. The media chamber is fluidly connected to the discharge hole of the discharge plate. The discharge plate is positioned between the motor and the displacer. The displacer is positioned within the housing. The media chamber can be positioned between the motor and the discharge plate.

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: A system and method for remediating a body of water and collecting suspended and dissolved solids therefrom are provided. The system includes a water-impervious lining positionable in a depression in or adjacent a body of water. The lining and depression define a treatment vessel, which includes a treatment portion, an outlet portion for containing treated water, and an outflow weir between the treatment portion and the outlet portion. Water to be treated is transported from the water body to the treatment portion. An entrapment element is delivered and mixed into the transported water, the entrapment element for capturing suspended and dissolved solids in the transported water and effecting a separation between the captured solids and water cleansed therefrom. The captured solids can be removed from the treatment basin, and the cleansed water can move through a channel in the outflow weir into the outlet portion.

Abstract: An aeration and microbial reactor system for use in decontaminating water including a housing adapted to float 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: The present invention uses paddle wheel to push water through a trough raising water above the level of surrounding water to the outlet of the trough from which the water flows across an outlet tray into a conduit protruding above surrounding water surface, containing the water falling from the outlet tray in the conduit as it travels to the outlet of the conduit.

Abstract: A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each header pipe is equipped with a truss for enhanced structural strength and resistance to bending. The truss may take the form of a buoyancy/ballast pipe connected with the header pipe by purlins.

Abstract: A diffuser assembly with a buoyancy vessel and a chamber for buoyantly raising the diffuser assembly for maintenance work. The diffuser assembly has a support structure, diffusers connected to the frame, and a buoyancy vessel positioned on the frame, capable of alternating between a state of buoyancy or ballast.

Abstract: A cruising aerator includes a raft, a motor mounted on the raft, a shaft driven by the motor, a first impeller mounted on the shaft, a second impeller mounted on the shaft, and a common chamber. The cruising aerator further includes a sequential controller connected to the motor for controlling the motor to rotate clockwise or counterclockwise. The motor, the shaft and impellers are installed inside of the common chamber. The common chamber has a common inlet disposed under a water surface. A first outlet and a second outlet of the common chamber are arranged to face in opposite directions. The first impeller and second impeller are assembled to have opposite normal rotating directions to each other according to a rotating direction of the motor.

Abstract: The combined waterwheel oxygen-increasing machine pertains to the area of life-saving and facilitation equipment in aquaculture development. The existing waterwheel oxygen-increasing machine is a floating body with brackets integrally connected, inconvenient for assembly and disassembly and for general use. The present invention comprises of floating bodies, a power device, a reduction gearbox and impellers, wherein the power device is connected to a reduction gearbox, which then drives said impellers via an output shaft. The floating bodies are hollow, closed, bodies including longitudinal floating bodies and transversal floating body connected vertically with each other, wherein one end of the longitudinal floating bodies are connected to transversal floating body. The floating bodies bear an output shaft. The impellers are located in the midst of the area surrounded by the longitudinal floating bodies and the transversal floating body.

Abstract: The present invention relates to an aeration device for use in a liquid medium. The device includes a housing adapted to float within the medium such that a top portion thereof remains above a top surface of the medium. The housing has a bottom portion and an open side portion. The device further includes a hose affixed to the bottom portion of the housing substantially parallel to the surface of the liquid medium. The hose has a wall with a plurality of pores formed therein. The device further includes a gas-supplying pipe affixed to the hose and means for supplying a gas to the pipe such that the gas passes through the pipe and into the hose.

Abstract: The waterborne vessel, in one embodiment, utilizes an underwater tunnel through which passes flowing water, an ozone gas generator, an ozone plus hydroxyl radical gas generator and a source of atmospheric oxygen. A manifold mixer mixes pressurized water independently with the ozone, the ozone plus hydroxyl radical gas and the atmospheric oxygen to produce corresponding oxygenated water mixtures. Each of these oxygenated water mixtures are fed via a conduit system into the confined flow of water passing through the tunnel. A diversion channel with reverse flow channel permits super saturation of diverted flow from the primary underwater tunnel channel to provide super saturated oxygenated water with ozone plus hydroxyl radical gases and atmospheric oxygen water mixtures. A decontamination method is also provided.

Abstract: A multi-direction submersible floating aerator has a gas-ring compressor (4), a base (6), a gas inlet tube (9), a seat (11), multiple submersible hollow shaft motors (13), and multiple propellers (14). The base (6) is disposed between the gas-ring compressor (4) and the gas inlet tube (9). The propeller (14) is coaxially connected to the submersible hollow shaft motor (13). The seat (11) is disposed between the gas inlet tube (9) and the submersible hollow shaft motor (13). The seat (11) is hollow. A first opening is disposed at the top of the seat (11), and multiple second openings are disposed on one side of the seat (11). The seat (11) is used for evenly distributing compressed air. Thus, the aeration is more even and stable, and aeration efficiency is greatly improved.

Abstract: A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each pipe is equipped with a smaller internal pipe arranged concentrically to provide an annular space which receives the gas and supplies it to the diffusers. The volume within the internal pipe can serve as a ballast chamber or a buoyancy chamber or both.

Abstract: A buoyant wastewater aeration apparatus includes a buoyant float pod and at least one air conduit leg removably attached at a leg input end to a respective air supply outlet. The float pod further includes a leg-retainer structure that accommodates efficient engagement/dis-engagement of the air conduit leg at a known region of the leg. The leg-retainer structure may be in the form of a resilient clamp having an open end for removably engaging the known region of the leg. Alternatively, the leg may have attached thereto in the known region thereof a leg retainer-engaging structure that surrounds the leg, wherein the leg-retainer structure is a non-resilient split-ring having a given shape and dimension. The split space has a dimension sufficient for the leg diameter to pass through.

Abstract: Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.

Abstract: A method and apparatus for a flotatable aerator system that includes a concaved surface at the top of a fluid uptake chamber for diverting aerated fluid behind a chassis of the system. The chassis is supported by floats and includes a bank of fluid outlets created by a plurality of parallel baffle walls. The baffle walls add structural support to the chassis. Elongated end baffle walls create a semi-enclosed area for the discharge of the aerated fluid.

Abstract: An energy-saving and wind-powered aerator includes a floating carrier (1), a wind turbine (2), a water stirrer (3), and a transmission element (4). The floating carrier (1) has a supporting structure (12). The wind turbine (2) is connected to an upper portion of the supporting structure (12). The water stirrer (3) is mounted to the floating carrier (1). The transmission element (4) is connected to the wind turbine (2) and the water stirrer (3). The water stirrer (3) is rotated by means of the rotation of the wind turbine (2) and a driving action of the transmission element (4). With this arrangement, the wind turbine (2) is blown by natural and inexhaustible wind to rotate, so that the water stirrer (3) can be driven by the transmission element (4) to beat water rapidly, thereby increasing the amount of oxygen dissolved in the water and facilitating the decomposition of organic compounds in the water.

Abstract: The invention concerns a flotation cell (1; 30) for purifying fibrous suspensions through the dispersion of air microbubbles (22), comprising: a container (2; 31); feed pipes (4; 34) for conveying the suspension (3) into the container (2; 31); means (5; 35) for intercepting the purified suspension; means (6) for extracting the purified suspension; means (7) for discharging the foams created by the impurities contained in the suspension (3); rotary vanes (19; 36) arranged inside the container (2; 31). The cell (1; 30) comprises air dispersers (10; 32; 42) for generating air microbubbles (22) and dispersing them in the suspension (3), in each one of which it is possible to identify one rotor (11; 45) with axial flow associated with driving means (12; 47) and one duct (13; 40; 46) for conveying external air at the level of the rotor (11; 45).

Abstract: A device for preventing sedimentation by regulating the flow of waste water through drain draining-wells, with or without a pump. The device has of a swirl chamber with connected outlet pipe and provided with an air injector. The swirl chamber which is tapered, generates a vortex flow in which the air added by the air injector gives the sludge particles a certain amount of buoyancy, making it easier for them to accompany the water flow without being precipitated.

Abstract: Circulation systems for ponds, lakes, or other bodies of water using a flotation platform, dish, and impeller. One embodiment has a connecting arrangement between the drive motor and the impeller that permits the two to be easily and quickly coupled and uncoupled. The connecting arrangement also is designed to accommodate slight misalignments between the shafts. An arrangement to adjust and calibrate the depth of the inlet to the draft tube is disclosed. The system further includes solar panels that can be pivotally swung outwardly to open positions, angularly adjusted about a horizontal axis, and mounted to face toward the central axis of the flotation platform rather than away from it. Arrangements are further provided to monitor and control the components of the system including remotely from shore.

Abstract: Flotation device for the separation (purification or removal) of dispersed particles in a fluid, in particular removal of dispersed oil in water. The device includes a flotation cell (1) with one or more nozzles (4) provided at or near the bottom of the cell for the supply of gas or fluid to the interior of the cell. Further the ceil is provided with an inlet (5) for the fluid to be treated and two or more outlets (6, 7) for the separated products. The flotation cell is in the form of a longitudinal pipe (1), the diameter of which is basically the same as the diameter of the fluid transport or feeding pipe (2) connected to the inlet (5) of the pipe. The nozzles (4) for the supply of gas or fluid are provided at distance along the bottom of the pipe.

Abstract: A vacuum skimmer for ponds, swimming pools or similar bodies of water has housing with an intake opening and a dirt collecting container arranged downstream for collecting coarse materials. The water to be purified is sucked in through the dirt collecting container by a pump arranged downstream. The intake opening is provided on one housing side. The vacuum skimmer is movable in such a way that the intake opening upon operation of the vacuum skimmer can orient itself in different directions. The vacuum skimmer has an aeration device by means of which air can be blown into the water.

Abstract: Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.

Abstract: A water treatment apparatus includes a float configured to float on the surface of a water body, a first fluid channel coupled to the float and configured to circulate contaminated water in the water body, and a second fluid channel coupled to the float and configured to filter contaminated water in the water body. A fluid transport apparatus can draw the contaminated water through the first fluid channel at a first flow rate and through the second fluid channel at a second flow rate.