|
Match
|
Document |
Document Title |
|
|
4364826 |
Waterwheel system for aeration
A waterwheel system for aerating water in sewage treatment tanks and fishponds, etc., an aerator waterwheel system in which a plurality of honeycombed tubes are arranged, and securely held in...
|
|
|
4356131 |
Circulating device for liquids containing long-chain molecules
An apparatus is provided for causing circulation within a large body of fluid, especially a fluid comprising long molecules, such as polymer chains. The apparatus comprises a so-called "large...
|
|
|
4350589 |
Floating jet aerator
A water-aeration apparatus has a tubular frame defining a substantially closed chamber and capable of floating and carrying a load when the chamber is filled with air. Flood and bleed valves are...
|
|
|
4340473 |
Apparatus for joint particulate recovery and liquid purification
Apparatus for step-wise purification treatment of contaminated polar liquid, such as water, by the procedure of U.S. Pat. No. 4,224,148, comprising successive flow-connected container units,...
|
|
|
4338197 |
Method and apparatus for the treatment of wastewater
This invention provides a method for treating wastewater by circulating wastewater around a system comprising a downcomer and a riser which communicate directly at their lower ends, the level of...
|
|
|
4337152 |
Aeration apparatus and method
A gas-liquid mixing process and apparatus, particularly applied to aeration, especially associated with activated sludge waste-water treatment, wherein complete, efficient mixing of the gas and...
|
|
|
4336144 |
Method for mixing gases with liquids
An apparatus for mixing gas with liquid comprising: (a) an inner cylindrical member comprising an elongated tube having upper and lower ends and a plurality of turbines, which are free to rotate...
|
|
|
4333834 |
Device for dispersing a fluid in a liquid and in particular ozonized air in water
The device comprises a fluid supply tube immersed in the liquid to be treated. There are disposed coaxially with this tube: an induction enclosure connected to the lower part of the tube and...
|
|
|
4329227 |
Device for the gasification of liquids
The device is a hollow annular member bounding a liquid flow passageway. The member has a gas inlet and a row of apertures around the throat of the passageway to emit gas bubbles into the liquid to...
|
|
|
4324656 |
Installation for the withdrawal and purification treatment of waters and aqueous effluents
The installation comprises two essential elements, on the one hand a water intake apparatus in which various operations of physical and chemical treatment are carried out and, on the other hand, a...
|
|
|
4324657 |
Apparatus for the treatment of liquids
The invention relates to apparatus for the treatment of sewage or other aqueous waste material having a biochemical oxygen demand in a single tank, the treatment involving the oxygenation of the...
|
|
|
4317723 |
Sewage treatment
The present disclosure is directed to a sewage treatment device of the marine type and operates on an extended aeration principle employing an aerator, clarifier and disinfector. The clarifier is...
|
|
|
4317731 |
Gas absorber
An absorber for increasing the concentration of oxygen in a solution has a pressure chamber therein which receives oxygen under pressure as well as a liquid to be oxygenated within an upper portion...
|
|
|
4313898 |
Radial injector for aspiration of gases
A radial injector having a rotational disk through which gases are aspirated from the atmosphere and mixed with a fluid contacting the disk at the other side thereof. The disk is defining a ring...
|
|
|
4308144 |
Prevention of flow reversal in vertical waste treatment apparatus
In a long vertical shaft sewage circulation waste treatment process where influent waste is introduced into the shaft through a downcomer conduit, an improvement is provided whereby the downcomer...
|
|
|
4308138 |
Treating means for bodies of water
A device for aerating lakes, the main part of which is an elongate casing having a longitudinal water passage through it. Between the inlet and outlet of this passage there is a frusto-conical...
|
|
|
4306969 |
Apparatus for sewage purification
An apparatus for purifying BOD-containing water by the action of activated sludge, which includes a vessel for containing activated sludge-containing liquid, and an aerator which is installed in...
|
|
|
4306968 |
Sewage treatment system
A sewage treatment system comprising means defining a receptacle including at least one chamber for receiving a body of sewage composed of liquid and solids the top of which is exposed to air,...
|
|
|
4305894 |
Arrangement in apparatus for mixing gases with and dissolving gases in liquids
In an apparatus for mixing gases with and dissolving gases in bodies of liquid there is an axial-flow pump impeller (22), which is arranged to raise the liquid through a substantially vertical...
|
|
|
4304740 |
Liquid aeration apparatus
A removable light-weight, apparatus for the aeration of a body of water or other liquid in a tank or a pool having a submerged liquid source or inlet port supplying a continuous or a sporadic...
|
|
|
4304665 |
Process for treatment of wastewater
A method and apparatus for treating wastewater by circulating it around a system comprising a downcomer and a riser communicating with each other at their lower ends, the level of the wastewater in...
|
|
|
4302406 |
Apparatus for heating water in a reservoir
Apparatus for heating water in a reservoir, comprising a pipe system including at least one supply conduit, at least part of which pipe system is disposed in the vicinity of the surface of the...
|
|
|
4301007 |
Two zone apparatus for biological treatment of waste water
A biological waste water treatment carried out in a single tank. The conditions in the tank are controlled to provide a biological reaction zone containing waste water and biodegrading organisms...
|
|
|
4301097 |
Method for providing auxiliary cooling and aerating of liquids to supplement or replace fixed cooling towers
A portable auxiliary cooling tower which is transportable over-the-highway for temporary or permanent use at a desired site. The tower is typically constructed on a trailer frame and is designed to...
|
|
|
4298467 |
Water treatment system
A batch water treatment system is provided in which ozone is the reactive agent. The system includes a holding tank containing untreated water in communication with a reaction tank in which ozone...
|
|
|
4297214 |
Aerator
A submerged aeration apparatus has a hollow shaft extending downwards from the surface of a body of liquid. The hollow shaft is used to transfer surface air or other gases to the body of liquid. An...
|
|
|
4294696 |
Swing diffuser
A swing diffuser apparatus for gas diffuser systems for liquid treatment is disclosed in which an array of diffusers (50) is movable between a deeply submerged, essentially horizontal operating...
|
|
|
4293506 |
Liquid circulating device
An apparatus is provided for causing circulation within a large body of fluid. The apparatus comprises a "large bubble" generator exposed to the pressure of the fluid at a predetermined level, a...
|
|
|
4290885 |
Aeration device
An efficient apparatus related in general to introducing gas into a body of liquid and more particularly to aerating wastewater contained in an activation basin by means of interacting surface...
|
|
|
4288395 |
Diffusion element with boundary zone treatment
Gas diffusion elements, formed of a body of solid particles which have been shaped, pressed and rendered coherent by bonding or sintering in a compacted form having pores, are disclosed. Said...
|
|
|
4288394 |
Sewage aeration system
A sewage aeration system comprising a header pipe, plenums of synthetic thermoplastic or thermoset resin with side walls inclined upwardly and outwardly to diffusion element support means,...
|
|
|
4287137 |
Vane-type fluid impeller and method of aerating a liquid
A provision of the disclosed grating composed of closed loops of plurality of parallelly-arranged straps with clearances between adjacent straps is made to encompass a space of a body of a...
|
|
|
4287070 |
Method maintaining a constant gas to solids ratio in effluent from a long vertical shaft bioreactor
An improved method and apparatus is provided for maintaining a constant gas-to-solids ratio in the effluent from a long vertical shaft waste treatment bioreactor. In a vertical bioreactor wherein...
|
|
|
4287062 |
Apparatus for biological purification of sewage
This invention relates to apparatus for the biological purification of sewage, comprising at least one active sludge basin having an inlet and an outlet, and a plurality of bottom aerators...
|
|
|
4282172 |
Gas to liquid diffuser
A static diffuser for use within the water tank of an ozonator system. The diffuser comprises a depending water pipe into which water is fed under pressure by an external pump. The lower end of the...
|
|
|
4279842 |
Air diffuser assembly
The apparatus of the present invention would relate to an air diffuser assembly which would comprise an aerator body having a plurality of side walls connected to form an enclosure and at least a...
|
|
|
4279743 |
Air-sparged hydrocyclone and method
An air-sparged hydrocyclone apparatus and method, the apparatus including a substantially hollow, cyclone body having a cylindrical section and a downwardly oriented conical section. An inlet, an...
|
|
|
4278546 |
Treatment of a liquid by circulation and gas contacting
Process and apparatus for treating waste water by circulating it, together with oxygen-containing gas, through communicating downflow and upflow pipes enclosed in a treatment chamber, the pipes...
|
|
|
4277341 |
Water treatment discharge means
A lagoon for wastewater treatment, having an aeration zone and a quiescent zone is provided with a collector in the form of a horizontally extending submerged tube filled with biological reaction...
|
|
|
4274959 |
Apparatus for dissolving air in water and subsequent reduction of the water surface tension in flotation systems
Waste water and sludge is supplied through an inlet 12 to a flotation basin 10 where a skimmer 14 collects floating solids and sweeps sunken solids into a bottom discharge trough. Water from the...
|
|
|
4274958 |
Flocculant distributor means for feedwell
A sedimentation tank having a central feedwell comprising upper and lower cylindrical channels or raceways for receiving the influent feed in split counter rotative streams wherein an intermediate...
|
|
|
4273732 |
Method and apparatus for raising an aeration apparatus for liquids
An apparatus for raising a liquid aeration apparatus having a carrier element 62 which can be guided to a position engaging an air distributing pipe 36 to raise same by means of a guide rod 66. The...
|
|
|
4272379 |
Method for protecting a bioreactor pressurized head tank against extreme surges of influent waste water
A method and apparatus is provided whereby a pressurized long vertical shaft bioreactor is protected against extreme surges of influent waste liquid. The method provides for the transfer of excess...
|
|
|
4272383 |
Method and apparatus for effecting subsurface, controlled, accelerated chemical reactions
A method and apparatus is disclosed for effecting accelerated chemical reactions between reactants at elevated temperatures and pressures including the wet oxidation of materials in waste streams....
|
|
|
4272461 |
Apparatus for mixing gases with liquids
An apparatus for mixing gas with liquid comprising: (a) an inner cylindrical member comprising an elongated tube having upper and lower ends and a plurality or turbines, which are free to rotate...
|
|
|
4271099 |
Apparatus for thorough mixture of a liquid with a gas
An apparatus with a unique venturi construction and restriction structure, a liquid intake conduit and mixing chamber is provided for mixing virtually any liquid with any gas, and is particularly...
|
|
|
4268398 |
Sludge agitating method
A sludge agitating method includes a support platform attached to pontoons for floating on a body of water, such as a waste water treatment facility lagoon, a paddle wheel, and a paddle wheel drive...
|
|
|
4267038 |
Controlled natural purification system for advanced wastewater treatment and protein conversion and recovery
The invention is an improved controlled natural purification system for an advanced wastewater treatment and protein conversion and recovery. The system provides for treating municipal wastewater...
|
|
|
4265753 |
Aeration filtration tank and water treatment system
An aeration filtration tank and system for treating raw feed water includes a first tank or chamber and a second tank or chamber within the first chamber. An annular overflow platform is provided...
|
|
|
4265741 |
Apparatus and method for separating diverse particles of a slurry
An apparatus for separating lightweight particles from heavyweight and middling particles of the slurry generally consisting of means defining an upper cylindrical chamber, means defining a...
|