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4101409 |
Electrolytic flotation apparatus
A method for treating a liquid wherein the liquid to be treated is caused to flow through a tank equipped with at least one electrode assembly in the base thereof for the generation of gas bubbles...
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4100066 |
Treating paint waste solids
Waste paint which is contained in an aqueous medium which flows from a paint spraying booth is collected by apparatus which comprises a vessel which is located outside the booth and has at the...
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4094783 |
Centrifugal flotation separator
A multi-stage, recycling, centrifugal, flotation separator system, comprising a circular cylindrical vessel with vertical axis, having a horizontal tray positioned inside the vessel near the top,...
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4075076 |
Water treatment apparatus
In a process for purifying an aqueous liquid by flotation of suspended solids with gas bubbles produced by electrolysis between at least one pair of electrodes, at least one of said electrodes,...
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4072609 |
Capacitance system for heavy phase discharge of second stage centrifugal separation circuit
A single capacitance vessel is provided to receive the excess heavy phase discharges (normally water) from a bank of disc-nozzle centrifugal separators. The vessel has a reservoir chamber with a...
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4066540 |
Apparatus and method for continuous froth flotation
An apparatus for continuous froth flotation is disclosed which comprises a vertically elongate column having disposed therein a froth separator, a raw water inlet pipe, a treated water discharge...
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4065385 |
Apparatus and method for separating a mixture of liquid and coal fines
Coal fines are separated from a mixture containing liquid and coal fines in an apparatus comprising a combination surge tank and flotation tank employing air bubbles to urge the coal fines toward...
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4059604 |
Separation of mature okra seed into component fractions
The present invention is directed to a method for separating mature okra seed into its essential basic components of oil, germ, kernel material and hull. The separation is obtained by cracking the...
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4018664 |
Method for reducing mineral content of sludge
A process for treating retention pond sludge containing greater than 20% solids including minerals and bitumen and associated with the aqueous extraction of bitumen from tar sands to provide water...
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4011161 |
Treatment of waste water produced in the manufacture of expandable polystyrene
Treatment of waste water produced in the manufacture of expandable polystyrene, comprising passing a stream of fine gas bubbles through the waste water and removing the resulting foam containing a...
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3977970 |
Apparatus for and method of filtering solid particles from a particulate-bearing liquid
Waste water containing particulate matter is saturated with air or other gas by a dynamic mixer and ejected into a gravity filter system at a point above the filter media but below the water...
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3966598 |
Circular dissolved gas flotation system
A circular dissolved gas flotation system is provided for increasing the loading rate with increasing size flotation basins. The dissolved gas flotation system includes a submerged annular release...
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3945918 |
Methods and apparatus for treating a liquid with a gas
Methods and apparatus for treating a liquid with a gas wherein a liquid feed is introduced to the initial stage of a multi-stage device for dissolving the gas in the liquid. Efficient mass transfer...
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3920530 |
Flotation process
In a process for purifying an aqueous liquid by flotation of suspended solids with gas bubbles produced by electrolysis between at least one pair of electrodes, at least one of said electrodes,...
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3905890 |
Method and apparatus for purifying waste water
A method of purifying waste water comprises carrying out an electrolysis of water in a defined area of a vessel in order to form oxygen and hydrogen therein and directing a flow of the waste water...
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3901803 |
Process for the removal of suspended grains from sodium aluminate liquor
The process according to the invention relates to the continuous or intermittent removal of suspended particles from sodium aluminate liquor in such a manner that the sodium aluminate liquor is...
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3869384 |
Tailings disposal system for tar sands plant
This invention has to do with the treatment of the tailings stream from a hot water extraction plant for recovering bitumen from tar sand. This stream comprises water and coarse and fine solids....
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3864251 |
Treatment of middlings stream from hot water process for recovering bitumen from tar sand
This process relates to treating the middlings stream from the primary separation cell used in the hot water process for extracting bitumen from tar sand. The middlings stream is diluted with hot...
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3860513 |
METHOD OF RECOVERING MINERAL VALUES FROM ORE
An improvement in the recovery of mineral values from a finely ground ore slurried in water wherein the ionic charge density of the water and/or resulting slurry of ore is ascertained, and adjusted...
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3855124 |
PROCESS AND APPARATUS FOR THE PURIFICATION OF AN AQUEOUS WASTE STREAM FROM A SILICONE-POLYMER PRODUCING PLANT
A process for the purification of an aqueous waste stream from a silicone-polymer producing plant which includes conducting the aqueous waste stream to a flotation and sedimentation zone; adjusting...
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3809240 |
METHOD OF INJECTING FLUIDS INTO A FLOTATION TANK
Method of injecting fluids into a flotation tank in which the flotation process is carried out by expanding, within the liquid mass to be treated, which contains particles in suspension, another...
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3785490 |
WATER PURIFICATION APPARATUS
In a froth flotation type of water purification system, a pump is used to deliver influent from a storage reservoir into a froth flotation tank. The pump is subject to intermittent air-binding...
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3772190 |
METHOD FOR PURIFYING WATER
A method for purifying polluted water by adding compressed air and intimately mixing it by circulation in a first operating stage so as to form a foamy mixture, then allowing the foam to float to...
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3767046 |
LIQUID PURIFICATION METHOD
A batch of an aqueous liquid to be purified is charged into a treating vessel where the batch is subjected to an electrical treatment by passing an electric current through a cathode and soluble...
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3738488 |
PROCESSES AND APPARATUS FOR THE RECOVERY OF MICRO-ORGANISMS CULTIVATED ON A HYDROCARBON SUBSTRATE
A process and apparatus for use in the recovery of a micro-organism cultivated on a hydrocarbon substrate. The feature of the process and apparatus being the provision of a settling zone wherein...
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3693796 |
METHOD AND APPARATUS FOR REMOVAL OF PARTICLES FROM SUSPENSION
Method and apparatus comprising an intake of bridge pier like concrete construction for water-works located in a flowing stream of water. The intake has a passage leading from a submerged inlet...
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3669883 |
FOAM FLOTATION SEPARATION SYSTEM PARTICULARLY SUITABLE FOR SEPARATING DISSOLVED PROTEIN COMPOUNDS AND TOXIC METALLIC IONS FROM AQUARIUM WATER
Foam flotation separation of dispersoids such as colloids and high molecular weight compounds in dispersions is carried out by drawing the dispersion into a pump which then passes it, as motive...
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3655048 |
METHOD AND APPARATUS FOR TREATING AND DISPOSING OF SEWAGE
A method and apparatus for treating and disposing of sewage which includes introducing raw sewage into a liquid separator. Separating liquid sewage from the solid sewage and collecting the...
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3647069 |
ENCLOSED FLOTATION APPARATUS AND PROCESS
Combined deaeration and flotation apparatus which includes an enclosed tank adapted to contain a body of liquid with an overlying freeboard space. Means for introducing oxygen-free gas into the...
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3542675 |
WATER TREATMENT
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3506125 |
WATER TREATMENT PROCESS FOR IMPROVED GRAVITY FILTERING AND BACKWASHING
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3505188 |
ELECTROLYTIC FLOTATION METHOD AND APPARATUS
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3479281 |
METHOD AND APPARATUS FOR THE SEPARATION OF PHASES BY GASEOUS FLOTATION
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3478874 |
METHOD FOR SEPARATION OF TRAMP OIL FROM OIL-IN-WATER EMULSIONS
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3429809 |
AIR FLOTATION PROCESS FOR REMOVAL OF PARTICLES OF SUSPENDED MATTER FROM WATER
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3413220 |
Process for treating brine
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3341449 |
Method and apparatus for the purification of hydraulic fluids
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3341024 |
Apparatus for molecular filtration and methods for its fabrication
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3264213 |
Method and apparatus for continuous biological degradation of metabolisable substances
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3248324 |
Removing organic matter from aqueous wastes
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3203893 |
Removal from sewage of surfactants resistant to biodegradation
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3175687 |
Flotation unit
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3121680 |
Method and apparatus for treating fluid material with suspended solids
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3107216 |
Re-circulating toilet sump foaming compositions and method for producing the foam under toilet operation conditions
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3063938 |
Method and apparatus for thickening
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3063939 |
Apparatus for and improved method of thickening
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3015396 |
Apparatus for flotation of suspended material
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2969879 |
Liquid and gas mixing machine
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2876863 |
Treatment of aqueous wastes containing hydrocarbons
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2874842 |
Process and apparatus for waste liquid purification
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