Abstract: An animal water dispenser apparatus has a container with an interior defined by wall and a bottom, a tubular member connected to an inlet of the container, and a water hose connected to the inlet. The tubular member has a plurality of openings that open to the interior of the container. The water hose is adapted to pass fresh water into the tubular member, outwardly of the plurality of openings of the tubular member, and into the interior of the container. The outlet is adapted to allow water from the interior of the container to be released outwardly of the container. A fresh water source can be connected to the water hose so as to pass fresh water under pressure through the water hose.

Abstract: The disclosed embodiments include an aquarium having a low-current filtration system. In one aspect, an apparatus includes a tank having a closed end and an open end, a base that receives and supports the closed end, and a lid removably positioned over the open end. The apparatus also includes a filter base disposed onto an interior surface of the closed end, and a filter housing that engages a housing support structure disposed onto the filter base. The filter housing includes a filter cartridge separating a first chamber from a second chamber, a pump disposed within the second chamber, and a reservoir disposed within the second chamber at a distal end of the filter housing. The reservoir includes an outlet structure having multiple discharge locations, and is connected to the pump across an elongated tube.

Abstract: Reactors that allow mixing and gasification by converting the entire floor of the reactor vessel to a sparge filter is described.

Abstract: An aquarium suitable for displaying jellyfish includes a chamber having interior walls that divide the chamber into a series of compartments. The first compartment is the viewing area having openings in the side walls that permit water to flow out of the viewing area while retaining jellyfish and flow into viewing area in a manner that keeps jellyfish suspended. A spillover riser is located between the first and second compartment that defines a channel through which the first and second compartment communicate. The second compartment has an air inlet providing the motive force to circulate water throughout the aquarium and introduce air bubbles to operate a foam fractionating device the inside the aquarium. The third compartment provides an area for placement of filter media and other necessary devices to keep jellyfish alive. The channel below the viewing area provides communication between the second and third compartment.

Abstract: A multi-dimensional image rendering device for displaying multi-dimensional images by layering 2D physical pixel configurations featuring a plurality of tubes in a tank, the inner cavities of the tubes are each filled with a liquid medium such that an air pocket is disposed at the first end of each tube; displacement components slidably disposed in the inner cavity of each tube that can slide between a down position and an up position; a tube aperture disposed in each tube; and a moving means operatively connected to each displacement component functioning to systematically move the respective displacement component a fixed distance creating uniform air bubbles.

Abstract: A filtration and air supply device(3) used in an aquatic equipment(2) ,comprising 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). Outside of the air outlet hole(318) is equipped with air filter hood(315).

Abstract: A method and system for filtering water in aquarium tanks comprising: a macerating/comminuting chamber with a continuously self-cleaning screen covering the discharge outlet that only allows, optimally sized, easily digestible, organic material to pass out of the macerating/comminuting chamber and into an, optionally self-cleaning, media containing denitrifying microbes. There are three different embodiments that use the method of the current invention. These comprise: a reverse flow under-gravel filter apparatus with the macerating/comminuting chamber and filter screen on the discharge side of the pump, a reverse flow under-gravel filter apparatus with the macerating/comminuting chamber and filter screen on the inlet side of the pump, and an external box filter apparatus with the macerating/comminuting chamber on the discharge side of the pump.

Abstract: An aquarium pump having LED lamps, wherein the coil unit of a motor unit in the pump housing is used as a primary coil unit, and a first insulating layer is used to envelop the primary coil unit, then a secondary coil unit is used to wind the primary coil unit; taking advantage of induction of the secondary coil unit to the primary coil unit to generate a low voltage for using by the LED illuminating lamp set. Kinetic energy during rotation of an internal magnet of a motor for the pump is used as induction potential, this is the energy required that can get an effect of energy saving and carbon reducing.

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: An apparatus for the pixel-integrated return of fluid in the pixel of a fluidic display is characterized in that the fluid with which the desired information is to be displayed and/or the carrier fluid in which the fluid is optionally embedded can be returned in a particularly compact manner and in a manner which is invisible to an observer past the visible part of a pixel (image compartment) into a reservoir (reservoir compartment) through or out of the reservoir. The device comprises an image compartment, a reservoir compartment, a connecting duct and at least one return duct, whereby the at least one return duct is formed by the fact that the connecting duct has at least one area with an uninterruptedly enlarged cross section which transitions in a specified manner into the cross section of the original cross section.

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: An aquarium pump having LED lamps, wherein the coil unit of a motor unit in the pump housing is used as a primary coil unit, and a first insulating layer is used to envelop the primary coil unit, then a secondary coil unit is used to wind the primary coil unit; taking advantage of induction of the secondary coil unit to the primary coil unit to generate a low voltage for using by the LED illuminating lamp set. Kinetic energy during rotation of an internal magnet of a motor for the pump is used as induction potential, this is the energy required that can get an effect of energy saving and carbon reducing.

Abstract: An aquarium filter system mainly has a base and an uprightly mounted filtering cylinder; the filtering cylinder is provided therein with a pump unit, it can be optionally used to spray forceful water jet on the surface board of the base or to pump air into the filtering cylinder to form air bubbles in water in the filtering cylinder; after filtering, seawater in an aquarium can be kept clean.

Abstract: A filtering device for an aquarium which can easily perform maintenance, inspection and repair of a pump is provided. The present invention is directed to a filtering device for an aquarium to be installed outside an aquarium 1. The device includes a casing 20 open to the atmosphere, a filtration zone Z2 formed in the casing for filtrating water W introduced from the aquarium 1, a discharge pump 35 for sending the water passed through the filtration zone Z2 to an outside of the casing and discharging it into the aquarium, a functional component zone Z1 formed in the casing and separated from the filtration zone Z2, and a functional component unit 3 having the discharge pump 25 and a unit frame 31 for supporting the discharge pump 35. The functional component unit 3 is insertably and detachably accommodated in the functional component zone Z1 of the casing 20.

Abstract: It is proposed to avoid an excessive formation of foam in the collection vessel of a protein separator by throttling the feed of air to a foam generator according to the foam generation rate in the separator. The foam generation rate in the separator can be measured by the amount of phase water that is separated in a second separator, which is located between the foam collection vessel and a first separator, in which second separator the mixture generated by the foam generator is freed from liquid constituents.

Abstract: An aquarium includes a filter housing disposed in a container, the housing includes a number of spaced guide fins extended into the housing and arranged to form a peripheral passage around the guide fins, a filter member engaged in the guide fins, and a water pump attached to the housing for pumping the water into the passage of the housing and for guiding the water to flow through the guide fins and to flow from various directions into the filter member and for allowing the water to be guided to flow through an outer peripheral portion of the filter member and for preventing the water from flowing through only a small portion of the filter member and for preventing the filter member from being quickly blocked by dirt or contaminant.

Abstract: A method of aquaculture is applicable to a novel culture arrangement for diversified farming of generally deep sea fin fishes, shrimps, and shellfishes. A pre-manufactured enclosed cultivation tank is provided and air compressor facility is included for pressurization and oxygenation so as to make the interior of the cultivation tank a pressurized water environment of predetermined high pressure. A low pressure siphon tube is included for sucking and removing excrements from the cultivation tank and to realize water replacement in a natural manner thereby providing a deep sea mimicked clean cultivation environment. The drained water is subjected to multiple steps of filtration and purification for separating the excrements from the water and for purifying water to allow cyclic use of the water. An arrangement of multiple cultivation tanks allows for diversified and multi-species cultivation of fishery products and deep sea fishes.

Abstract: In a skimmer (20,100) for aquariums comprising a first container (30) able to contain water of an aquarium (80), and water-air mixing means (50) which create a mixed flow of water and air which enters into said first container (30) to generate a foam and, finally, collecting means (40) of said foam, the mixing means (50) are placed inside said first container and are also submersion means, namely they work when they are immersed in water, said first container (30) is provided with a water suction duct (67) and air supply means (66,68) connected to said mixing means (50), so that said mixing means (50) may mix water to be purified with air taken from the outside environment, thus creating a mixed flow of water and air which rising upwards generates a foam which is collected inside said collecting means (40). The first container (30) is further provided with at least one opening (34) from which purified water goes out.

Abstract: A recirculated marine aquaculture system and process for growing crustaceans or other fish within a body of water. Water from the body of water is treated by stripping carbon dioxide and biological byproducts and by oxygenating the water. A water treatment unit may be provided to treat the water and provide movement to the body water. The water treatment unit can be configured to provide cavitation to the water, which aids in the removal of carbon dioxide and biological byproducts. Water may also be cycled through a deflocculation tank to reduce the floc of bacteria within the body of water to acceptable levels for optimal growth of crustaceans or other fish within a body of water. Using the system and the deflocculation tank has the advantage of significantly reducing the water exchange rates and even the water effluent, while maintaining acceptable water quality for growing crustaceans or other fish.

Abstract: An improved and more efficient design for an air driven algae filtration system is achieved because there are no moving parts other than an air pump, and the air is used twice. After using air to circulate water through a filtration unit, the air, still under pressure, is separated from the water. The air is then plumbed to other apparatuses or used for cooling. This allows the filter to be utilized using less electricity. The water is de-gassed before reaching the algae filter. Therefore, no splash guard is necessary to prevent water from splashing the lights. With no splash guard, lower wattage lights can be used to illuminate the algae. This also increases the efficiency of this system. This filter also lends itself to maintaining a reef aquarium.

Abstract: This invention provides a filtration system for home aquaria that uses a closed-circuit pathway having a surface that contacts a flow of water moving between a tank inlet and tank outlet. The surface allows for algal growth thereon, and for transmission of light thereonto so as to provide photosynthetic energy to the algae. The algae acts to scrub contaminants (nitrogenous compounds, for example) as part of its growth cycle, and thereby purify the water. Additional components, such as injected air and filter media can also be provided to the water circuit to enhance algal growth, oxygenate the water and remove particulates. In an illustrative embodiment, the surface is transparent or translucent and a light that transmits appropriate wavelengths (for example, full-visible spectrum) is placed in proximity to the surface.

Abstract: An aquarium is provided that hides ugly electrical wires. The aquarium comprises: a tank capable of holding water, the tank having an interior and an exterior, and a bottom, the bottom having an opening within the interior of the tank, a hollow member disposed within at least the interior of the tank and having an upper opening, a lower opening, an inner surface and an outer surface, the lower opening capable of aligning around or with the opening in the bottom of the tank so that water is prevented from leaking out the opening in the bottom of the tank, the outer surface of the hollow member capable of preventing water flow into the inner surface of the hollow member, and the inner surface of the hollow member capable of receiving one or more electrical wires to or from the upper and lower openings of the hollow member. In various embodiments, a decorative structure is provided that can hide and protect electrical devices typically used in the aquarium.

Abstract: A dirt collecting device for an aquarium includes a housing disposed on an apertured floor plate, a barrel disposed on the housing, a casing disposed on the barrel and having one or more openings for allowing the water form the barrel to flow into the aquarium, the casing includes a tubular member for forming an annular chamber between the tubular member and the casing, and an exit communicating with the annular chamber of the casing, and an air supplying device may supply air bubbles into the housing to carry the dirt and to move the dirt upwardly over the tubular member and collected in the annular chamber of the casing for allowing the dirt to be easily removed.

Abstract: A water aerating and dirt collecting device for an aquarium includes a pumping device having a paddle device for pumping and circulating the water contained within the aquarium, a receptacle having an entrance coupled to the pumping device for receiving the water from the pumping device and for agitating the water and for generating an eddy current, and a casing having an inlet port coupled to the receptacle for receiving a filtered dirt from the receptacle and having a mouth coupled to the pumping device for allowing an air in the casing to be drawn into the pumping device. The receptacle includes a tubular member for collecting the filtered dirt.

Abstract: A live well oxygenator includes a vessel having walls constructed of corrosion resistant material. The walls enclose a chamber that functions as a gaseous oxygen storage chamber. Fittings are disposed on the walls so that gaseous oxygen may be supplied to the chamber from an outside source. The vessel is equipped with a water pump and water return pipe which are in fluid communication with the water in a live well to provide for circulation of the water through the vessel. The water pump sucks water from the live well so that it flows through pump discharge piping. The pump discharge piping is positioned in the oxygen storage chamber. An induction fitting on the discharge piping functions to induct oxygen into the water stream in finely divided bubbles.

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: 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: An improved aquarium filtration system is provided which includes a bio-reactor chamber. The bio-reactor chamber includes a plurality of bio-balls which have a high surface area for collecting bacteria for biological filtration. The bio-reactor includes one or more pumps for pumping both water and air into the bio-reactor chamber. Preferably, the oxygenated water creates protein laden foam and the bio-reactor chamber includes a removable protein collector. To this end, the bio-reactor chamber includes a vertical column for carrying the protein laden foam into the removable collector.

Abstract: An aquarium which includes a tank having a pump and an under gravel filter disposed in the tank below the pump. 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 blended oxygenated 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 fish bait system includes a fish compartment and a filter compartment for maintaining bait fish in a healthy condition for prolonged periods prior to use. The fish bait system allows water to be pumped from the fish compartment through a filter having a standard non-woven reusable media whereby the filtered water is returned through an air infuser to the fish compartment. The infuser is mounted on the wall separating the fish and filter compartments and saturates the filtered water with oxygen to insure the fish are provided with an adequate oxygen supply. The removable filter media can be easily extracted from the filter housing, rinsed or replaced and returned to the filter in a quick and efficient manner.

Abstract: A desktop aquarium device with enhanced water filtration is provided. The aquarium device contains a base and a spherical tank. A filtering dish is installed inside the base. The filtering device provides a winding pathway for water to flow through. Along the pathway, biological filtering balls are placed. An air pump is also fixedly installed inside the base. The base is closed from the bottom by a bottom cover. The tank is locked to the base and the tank provides an aquatic environment. Inside the tank, there are a filtering device and a water outlet. Through the water filtration provided by the biological filtering balls along the water pathway inside the filtering dish, the water in the tank requires less frequent replacement, making the aquatic cultivation simpler and more convenient.

Abstract: Filtration-function-equipped cooling water equipment that includes: filtration equipment connected to water-purifying, oxygen-supply-capable cooling water equipment, wherein the filtration equipment includes a filtration space for a filter, wherein the water-purifying, oxygen-supply-capable cooling water equipment comprises a cooling oxidation unit disposed inside of a tank body and comprising a honeycombed or latticed porous material, wherein the filtration-function-equipped cooling water equipment operates to enlarge a contact area between water and air when untreated water drips onto the cooling oxidation unit and flows through the cooling oxidation unit while forced air flows in a counter current against the flow of water in the cooling oxidation unit, thereby facilitating solubility of oxygen in the untreated water and augmenting a cooling capability due to evaporation provided by the water-purifying, oxygen-supply-capable cooling water equipment.

Abstract: A water aerating device for an aquarium includes a container having an entrance and an exit, a pipe attached to the entrance of the container, a hose coupled to the pipe, to supply air into the pipe, and a pump may pump the water from the pipe into the container via the entrance of the container, to force the water and the air to flow out through the exit of the container. The single pump may thus be simultaneously used to pump the air into the aquarium, or to generate air bubbles, and to circulate the water in the container. A tube may be attached to the exit of the container, and a fan device may be rotatably attached to a port of the tube, for being rotated by the water flowing out of the outlet of the port.

Abstract: An improved method for using replaceable filtration media in a rotatable drum. A plurality of media cartridges are installed on the rotatable drum. As the drum rotates, the media cartridges are alternately submerged and lifted from the water. The constant cycle of flooding, draining, and tumbling of the media provides excellent water filtration.

Abstract: A modular water flow system for an aquarium comprising a pump, a water intake system, and a water return system. The water flow system includes at least one valve assembly to manage at least one of the water return system and the water intake system to regulate a flow rate. The water flow system includes an overwall assembly unit comprising an interior portion and an exterior portion rotatably coupled by a link.

Abstract: A biological filter for an aquarium hang-on filter that attaches to the outflow of the aquarium hang-on filter. The biological filter includes a multiplicity of convoluted plastic channels over which water exiting the aquarium hang-on filter cascades and on the surfaces of which aerobic bacteria can form.

Abstract: A device for managing the fish-raising circulatory water includes a water-storing tank, a filter, an activated carbon filter, a critical filter, a powerful oxidizing device and an ozone sterilizing device, possible to supply raising water of the best quality according to various requirements, and able to check and test the PH value and the amount of oxygen of the fish-raising water by way of a store barrel connected to the critical filter.

Abstract: A live fish transport system is described herein. In particular, a modular live fish transport tote, an oxygen delivery system, an automated water treatment and delivery apparatus, and a chemically and biologically balanced aquaculture solution are described. Methods of making and using these components, either alone or in combination with each other, are also described.

Abstract: An aquarium having a powerless air pumping device includes a cycle filter device, and an air pumping device. The cycle filter device includes a water pumping pipe connecting with the air pumping device, so that the motor and the water pumping pipe of the cycle filter device may pump the water contained in the aquarium into the air pumping device, to serve as the power source of the powerless air pumping device.

Abstract: The present invention provides improvements for indoor closed systems used to raise aquatic life, along with methods to overcome the current problems associated with such indoor closed systems. The present invention provides an aquatic life rearing system which reuses water in the rearing process and does not pollute lakes or streams due to waste water discharge. The improvements include a method of preventing performance degradation of equipment which removes ammonia from the rearing water.

Abstract: A fish egg-laying tank comprises a housing secured to a fish tank including a recess in the bottom having a plurality of openings on the top, an egg-laying container supported on the housing including an inverted cone-shaped member and a hole at the small end, an air chamber in the rear of housing in communication with the container, and a filter tank fitted in the recess. Water in the housing is flowed when air is pumped thereinto such that the solved feces of fishes are flowed onto the filter tank through the inverted cone-shaped member, the hole and the top openings of the recess and the eggs of fishes are dropped onto the bottom of the housing other than the filter tank through the inverted cone-shaped member and the hole.

Abstract: An improved aquaculture system is provided which, in various embodiments, utilizes a single integrated unit to perform the biologic filtering, aeration and degassing functions; has a fish tank with an integrated multiphase drain for removal of fecal solids and uneaten feed with minimum water loss, for removing most of the water from the tank to be processed and returned to the tank and for segregating and for then selectively removing moribund and dead fish from the tank, preventing their cannibalization by other fish in the tank; and a single integrated unit for performing degassing, aeration, gas concentration and reaction/separation functions. An improved biologic filter is also discussed.

Abstract: A clarifying device for use in an aquarium that includes a casing having at least one transparent portion. A plurality of clarifying pieces are confined in the casing. Each piece has a bulk density of from 0.7 to 1.3. When aquarium water flows through the casing, the clarify pieces flow in the casing and clarify the aquarium water.

Abstract: A filtering system for fish bowls and aquariums is held in a specifically formed cavity formed integrally at the bottom of the fish bowl or aquarium, which is held in a stand that supports and conceals the specifically shaped cavity and also hides an electric motor therein. The electric motor is magnetically coupled through a drive magnet held against the flat bottom of the bowl or aquarium to a driven magnet, having an impeller attached thereto, for recirculating water through the filter. A perforated top plate covers the filtering element, and includes a porous filter material therein to allow water to pass from a main body of water through the porous filter material and through the specifically-shaped cavity into a tubular central portion and out the tubular central portion back into the body of water. The stand both supports the bowl and conceals the motor, as well as a possible light source therein.

Abstract: An aquarium pumping system includes: a container having a pump installed in the container and having sand filled in the container, a discharge tube connected between the container and an aquarium for delivering water into the aquarium, a suction tube connected between an aquarium and a suction port of the pump with the suction tube having an inlet aperture formed in the suction tube and constantly submerged in the container under a water level within the container to obtain an enough net positive suction head (NPSH) of the pump, and a gas tube connected to the container for supplying carbon dioxide gas into the container to react with calcium carbonate in the sand to form calcium ions which will be dissociated into the water delivered into the aquarium for raising fish, coral or other animals in the aquarium.

Abstract: A rotating aquarium for use with live fish and particularly live corals including a canopy with light fixtures, a tank having a central core, a turntable including an electric motor for rotating the tank and a base for supporting the tank. The central core includes an electrical conduit for transporting electrical wires to the light fixture in the canopy. The central core also includes a water pipe that is connected to a reservoir mounted within the base of the aquarium. The reservoir includes a pump that circulates water throughout the aquarium. The tank rotates about the central core via the turntable and the electric motor. As the tank rotates, the fish and living coral receive light at different angles and receive superior water circulation. The aquarium of this invention therefore provides an environment more like the ocean for the animals living therein.

Abstract: A manifold for use in aerating and circulating the aquarium water is composed of a main tube, at least one bypass tube extending from the main tube, and at least one aerating tube extending from the bypass tube such that the aerating tube is parallel to the main tube and that the top end of the aerating tube is in contact with atmospheric air and further that the bottom end of the aerating tube is submerged in the aquarium water. The main tube has a top end in communication with a filtration device of the aquarium, and a bottom end which is engaged with a water pump located at the bottom of the aquarium. The bypass tube forms an angle with the main tube such that the bypass tube is provided with an uphill segment contiguous to the main tube, and a downhill segment contiguous to the aerating tube.

Abstract: In order to reduce the noise made by a foam flotation separator working on the dispersion apparatus principle and maximise the air supply, the foam flotation separator is designed so as to comprise a dispersion pump (2) which draws in water and a gas such as air and/or ozone, a reaction chamber connected on the delivery side, a collector (5) on the upper end of the reaction chamber (4) and an expanded section (15) at the lower, outlet end of the reaction chamber (4).

Abstract: An aquarium system includes an inlet reservoir, an aquarium tank defining a container for water in fluid communication with the inlet reservoir to receive water displaced from the inlet reservoir, an outlet reservoir in fluid communication with the tank for receiving water displaced from the tank, and a water treatment unit in fluid communication with the inlet reservoir and the outlet reservoir. The water treatment unit includes a rotatably supported media wheel which has a first hollow portion and a second portion carrying a water displacement media. The media is alternately submersible into and raisable out of water contained in the water treatment unit as the media wheel is rotated to displace water from the unit to the inlet reservoir, to thereby cycle water through the system. In one embodiment, the displacement media is a biological media. In another embodiment, the media wheel carries an algae screen on its perimeter.

Abstract: An ozone purifying apparatus comprises a float which is afloat in polluted water and which includes an ozone reaction region in which the polluted water is mixed with ozonide air for the purpose of carrying out an ozone processing on the polluted water and an oxidant removing region in which oxidant generated due to a reaction between the polluted water and the ozonide air in the ozone reaction region is removed. The ozone purifying apparatus does not occupy a wide space. Water levels in the float can be easily adjusted. Furthermore, the ozone purifying apparatus can be easily installed.