|
Match
|
Document |
Document Title |
|
|
5190648 |
Water purifying method and apparatus
A method and apparatus for purifying a reservoir of water is disclosed employing an elongated lift tube suspended in a water tank for conveying water from and into the reservoir and introducing an...
|
|
|
5169567 |
Water aeration apparatus
A reservoir is arranged to include a water inlet conduit and a water outlet conduit. The reservoir includes an aeration manifold effecting aeration of water contained within the reservoir, wherein...
|
|
|
5156778 |
Mixing device
A device for use in the mixing of fluids, e.g. the gasification of liquids, comprises an elongate member including an internal passage; and, mounted on the elongate member via radials arms, one or...
|
|
|
5151197 |
Fluid treatment
Apparatus (1) for treating fluid, in this case wastewater, comprising a treatment vessel or tank (2), means (3) to supply wastewater to be treated in a pulsed sequence to the vessel, and means (4)...
|
|
|
5143625 |
Method and apparatus for clarifying liquid using a pulsating sludge bed and part of concentrated sludge
There is disclosed a pulsating sludge bed clarifier especially for the treatment of low turbidity waters, which uses incline plates in the sludge bed and some recirculated sludge. The clarification...
|
|
|
5131321 |
Vessel for treating a finely-divided material with a fluid
A vessel for treating a finely-divided material, such as granules, powder, flakes and the like with a fluid, comprising an essentially closed wall having product feed and discharge means for...
|
|
|
5120435 |
Pre-treatment sewer discharge system
A system for purifying water is provided having a series of filtering systems connected in series in a predetermined order along a flow path of the water to be purified. The filtering systems used...
|
|
|
5114586 |
Sanitation system
A sanitation system for treating a black water stream and a grey water stream. The black water stream is inputted into a black water digester wherein the black water stream is aerobically digested...
|
|
|
5110459 |
Septage anaerobic treatment batch processing
A sequencing batch waste treatment facility with pretreatment mixing, blending and dilution, with post-treatment liquid effluent recirculation and with anaerobic sludge digestion wherein high...
|
|
|
5106495 |
Portable water purification device
A portable ozonization system having a tank mounted on a base housing a battery, pump and associated components. A photovoltaic battery charger is mounted on a surface of the tank. Water from the...
|
|
|
5106496 |
Treatment of volatile organic substances at waste water treatment plants
A method and apparatus for purifying industrial waste fluids by an aerobic biological treatment is provided herein, which is capable of concurrently purifying waste gases emanating from such waste...
|
|
|
5100543 |
Water purification system for use in a live bait tank
A system is used to remove the solid waste and gases excreted by a fish after being caught and deposited in water supported by a container and has a body. A filtering apparatus that removes the...
|
|
|
5087292 |
Process and apparatus for treating a liquid with a gas
The invention relates to the treatment of a liquid with a gas. A gas injector, for example oxygen, is surrounded with a sheath to carry a flow of a liquid under treatment (for example lead) which...
|
|
|
5085809 |
Apparatus for gas absorption in a liquid
An apparatus and method for increasing gas absorption in a liquid includes, in a first embodiment, gas injection airfoils at an inlet of an extended vertical tube and a pump at an outlet of the...
|
|
|
5080805 |
Method and apparatus for removing iron from well water
A method of removing iron from ground water located in a water well and of preventing production of hydrogen sulphide in such water including positioning a bubbling device in the well below the...
|
|
|
5061378 |
Sludge transfer systems and methods
Known water or wastewater treatment methods, wherein a layer of fluid sludge is formed during operation of the method in a first chamber beneath a body of liquid partially filling the first chamber...
|
|
|
5057213 |
Apparatus and a system for monitoring impurity in a liquid
Apparatus 1 for monitoring impurity in a liquid, specifically toxin(s) in activated sewage sludge, comprises a vessel 2 with a plurality of chambers 3 and 4 through which the liquid (sludge) is...
|
|
|
5055204 |
Soil and sludge treatment apparatus and method including agitation, aeration and recirculation
A mobile soil and sludge treatment apparatus and a method of treating soil and sludge useful in a soil washing process or a biological decontamination of soils and/or sludges. In one embodiment of...
|
|
|
5055186 |
Pellet media to support growth of microorganisms and systems for the utilization of same
Disclosed are pellets for use in a fluidized bed type of system to provide optimum surface configuration and maximum effective surface area per unit volume for the culture of microorganisms. The...
|
|
|
5053206 |
Chemical dispensing device
A device for dispensing a chemical solution into a pipeline transporting a liquid under pressure irrespective of whether the liquid pressure varies between a maximum and a minimum or is...
|
|
|
5041217 |
Apparatus for maximizing biological use of entire volume of endless channel in an oxidation ditch
A process and any of several pump/circulators provide selective rapid mixing of influent wastewater with the mixed liquor in the channel of an oxidation ditch and thereby provide maximized use of...
|
|
|
5015394 |
Apparatus and method for the treatment of water with ozone
A method for treating water with ozone in which a countercurrent flow of liquids is established within a treatment vessel to insure intimate contact and substantial contact time between ozone and...
|
|
|
5013489 |
Sludge treatment apparatus
A gas bubble generator for mixing or promoting turbulence in a liquid medium, particularly sewage or effluent, comprising a collector for gas which collector is submerged in the medium and has an...
|
|
|
5013493 |
Staggered diffuser arrangement for waste water treatment systems
A wate water aeration system in which tubular diffusers are arranged with short and long diffuser assemblies alternating along the length of each air lateral submerged in the treatment basin. This...
|
|
|
5011599 |
Simple system for decomposing atrazine in wastewater
A hybrid chemical/biological process which is highly effective to destroy the herbicide, Atrazine, in wastewater solutions is herein disclosed. The process comprises subjecting the atrazine...
|
|
|
5006264 |
Apparatuses and methods for liquid-undissolved-solids separation
Liquid purification apparatuses and methods; an open filtration, treatment and siphon apparatus and process; a porous mass formation apparatus and process; and a liquid-solid separation apparatus...
|
|
|
5006232 |
Sewage treatment plant
A sewage treatment plant for use aboard ship comprises a vacuum assisted fresh water flush system delivering sewage to a collection tank. Sewage is collected from the collection tank in batches for...
|
|
|
4999115 |
Method and apparatus for use in separating solids from liquids
Apparatus and methods for continuous sedimentation-type separation of solids from liquids of a feed slurry in a thickener-clarifier-type tank operated by overflow removal of clarified liquid and...
|
|
|
4992174 |
Fixed bed bioreactor remediation system
Disclosed is an apparatus and method for the continuous bioremediation of sites contaminated with a hazardous substance. The apparatus includes a subsurface pumping system, for removing the...
|
|
|
4988427 |
Liquid/solid separation unit
The flow of alternating current electrical power between electrode(s) and ground electrode(s) in contact with a working fluid is utilized in separating materials within the working fluid and to...
|
|
|
4983285 |
Individual wastewater treatment plant
An individual wastewater treatment plant 1 including an aeration piping sub-system 27, 28 and an inverted, cone-shaped clarifier 13 concentrically suspended within an outer tank 10, the clarifier...
|
|
|
4966705 |
Waste water treatment plant and process
A waste water treatment plant of simple design and high efficiency which is particularly adapted for use in small communities is described. The plant comprises a reaction tank and an aeration tank,...
|
|
|
4961854 |
Activated sludge wastewater treatment process
Wastewater and recycled activated sludge are homogeneously mixed in a first aeration zone by injecting an oxygen-containing gas such as air into the lower portion of the zone under conditions which...
|
|
|
4952310 |
Intrachannel clarifier
An intrachannel clarifier for an oxidation ditch includes an enclosure positioned in the flow path of the oxidation ditch. This enclosure defines a perimeter wall which surrounds an internal volume...
|
|
|
4943305 |
Aerating apparatus for expelling volatile impurities from ground water
An aerating apparatus or aerator for expelling the impurities from ground water, especially for ground water under an overpressure, in which the impurities are expelled by generating a partial...
|
|
|
4938867 |
Configuration of aeration chamber for an activated-sludge sewage treatment system
A configuration of an aeration chamber for an activated-sludge treatment plant includes an elongated, hydraulic plug-flow aeration chamber with a floor having a sloped portion and a level portion....
|
|
|
4929349 |
Bio-filtration apparatus and method for wastewater treatment
Disclosed herein is a bio-filtration system that provides excellent solids removal and carbonaceous B.O.D. and ammonia nitrogen removal and which comprises in combination a tank, wedge wire panels...
|
|
|
4911836 |
Submerged aeration system
The present invention is directed to an efficient aeration system for use in a pool or lagoon. The system employs a venturi nozzle structure for mixing air and water. With this nozzle, multiple air...
|
|
|
4909936 |
Water aerating system
This is a water aerating unit which is particularly adapted for aerating bodies of water adjacent the shoreline and is readily transportable from one location to another. A suitable transporting...
|
|
|
4906363 |
Water aeration apparatus
A water aeration apparatus is used for aeration purposes in the water-filled areas such as dams, impounded water or reservoirs, and lakes and marshes, and includes a tubular casing and supply...
|
|
|
4897204 |
Process and apparatus for gas dissolution
A process for gas dissolution which uses a vessel, a portion wall made of ceramic material for dividing the vessel into a first chamber and a second chamber, a first inlet of the vessel for...
|
|
|
4894149 |
Biological filtration device
A filtration device is disclosed comprising an assembly of three concentric tubular members in longitudinal upright position, having a closure wall at each end, the inner and middle tubular members...
|
|
|
4892651 |
Filtering system for fish ponds
A filtering system for use with fish-containing ponds and bodies of water is disclosed. More particularly, the filtering system includes chambers for harboring micro-organisms which clean organic...
|
|
|
4883602 |
Decanting apparatus and method
A solids excluding subsurface fixed liquid decanter is used primarily to decant the settled liquid above the decanter. The decanter has no moving parts and will discharge this liquid at a constant...
|
|
|
RE33103 |
Strainer
A strainer for a liquid sucking device and adapted to be attached to the end of a flexible liquid sucking tube of the device. The strainer has an outlet tube adapted to be connected to the flexible...
|
|
|
4869824 |
Bubble plate system for biological purification of air and waste water
The outgoing gas or waste water is conveyed through a gas-liquid contact apparatus in which biological purification takes place. A bubble plate-type column (2) is used as gas-liquid contact...
|
|
|
4869818 |
Orbital wastewater treatment system with combined surface aerator and submerged impeller
An improved wastewater aeration and mixed liquor pumping arrangement for an orbital-type actuated sludge purification method includes the addition of a radial flow impeller on a shaft extension...
|
|
|
4863594 |
Aquarium filtration system
An aquarium filtration system using airlift to circulate water within the living area to display aquatic organisms, water rising up through the bottom gravel, the gravel providing biological...
|
|
|
4863595 |
Apparatus for degrading biodegradable material
A method and apparatus for degrading biodegradable waste through bioaugmentation, the waste treatment apparatus comprises a waste treatment tank including a multistage waste treatment section and a...
|
|
|
4859325 |
Waste material treatment apparatus
A sewage or waste material treatment plant or apparatus includes adjacent aeration and clarifier chambers with an intermediate internal wall having a bottom opening normally providing the sole...
|