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4021349 |
Apparatus for circulating and/or aerating a liquid
An apparatus for circulating and/or aerating a liquid, especially waste water located in a tank or basin by means of a centrifugal impeller or rotor immersed in the liquid and rotatable about a...
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4021347 |
Sewage treatment system
An improved sewage treatment system including a horizontally elongated tank divided transversely into a primary, aeration compartment, a secondary, settling compartment and a tertiary, filtering...
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4019986 |
Portable water purifier
A portable water purifier includes a portable ozone generator and water container and a flexible tube conducting ozone from the generator to the container. A filter-bubbler is used to bubble ozone...
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4019983 |
Disinfection system and method
A rapid and efficient method for disinfection of waste liquid such as sewage effluent by means of a fluid disinfecting agent, (e.g. ozone or chlorine) in which the disinfecting agent and all of the...
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4007120 |
Oxidation and ozonation chamber
An ozone and oxidation chamber for treating a liquid has a housing provided with an influent line and an effluent line spaced from one another for creating a flow of a liquid through the housing....
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4007240 |
Supporting arrangements for porous diffusers
A supporting arrangement for supporting a porous diffuser over a discharge opening of a gas supply pipe comprises a diffuser supporting body which defines a chamber with the porous diffuser and...
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4006085 |
Liquid treating apparatus
Liquid treating apparatus wherein the inlet of a settling chamber communicates with the outlet of an aeration chamber. Retaining member(s) in the aeration chamber which divide it into two or more...
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4005014 |
Water treatment system with prolonged aeration
In a water treatment system, an electrolysis unit breaks water into its constituent gases of oxygen and hydrogen. Baffles capture and temporarily hold the resulting gas to prolong periods of...
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4005015 |
Aerating apparatus
Apparatus for aerating and/or treating shallow ponds of water includes a submersible pump having an outlet conduit extending to a support means above water level. At the support means, the outlet...
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4002561 |
Method and apparatus for aerobic sewage treatment
An aerobic sewage treatment method and apparatus for use with a conventional septic system collection tanks having an inlet conduit (baffle) and an outlet conduit (baffle). A separate treatment...
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3997437 |
Aerobic type sewage digestion system
The present invention is a system for treating sewage waste commonly called sludge. An aerator shears the solid particles while simultaneously adding oxygen to the sludge. After being pumped...
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3992299 |
Sewage treatment devices particularly for marine applications
A sewage treatment apparatus of the activated sludge extended aeration type, particularly for use on board ships, comprises an inverted cone-shaped settling tank extending downwardly into an...
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3992300 |
Apparatus for controlling iron content of a zinc phosphating bath
An apparatus for controlling the iron content of a zinc phosphating process. The processing bath is continuously aerated and agitated to precipitate iron compounds out of solution and maintain the...
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3990967 |
Positive progressive biochemical digestion of organic waste
An aerobic sewage treatment system is constructed of a plurality of series-connected turbulent, aerated stages which progressively purify the waste to essentially organic-free water without...
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3990974 |
Waste treatment and solids separating system
A waste treatment and solids separating system includes a reservoir, feed means for causing waste liquid to flow into said reservoir and outwardly therefrom, ejector means disposed in said...
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3989627 |
Removable gas diffuser and apparatus therefor
A diffuser assembly of the general type for use in a municipal sewage treatment plant is of plastic and/or resin construction and includes spaced parallel or dual hanger pipes between the two...
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3984323 |
Apparatus for purifying polluted water
The invention pertains to an apparatus for purifying polluted water, which comprises the combination of a screen to be immerged into the water, means for generating a water jet under said screen...
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3984321 |
Sewage treatment plant
An improved, compact biological sewage treatment plant comprised of a series of serially connected treatment tanks of arcuate shape when viewed in top plan view, joined operatively together...
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3983031 |
Methods and apparatus for controlling the supply of a feed gas to dissolution devices
The supply of a gas to be dissolved in a liquid is controlled by initially sensing the concentration of dissolved gas in the liquid under treatment and subsequently producing appropriate control...
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3981803 |
Method and apparatus for anaerobic fermentation
A method for the anaerobic fermentation of organic waste materials in a digestion zone, which method comprises introducing into the zone algae produced externally of the zone, and/or at least part...
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3980561 |
Device for purifying sewage
A device for purifying sewage by employing a bed of aerobes or activated sludge characterized by the use of a movable air supply means which is moved across the bottom portion of the bed to apply a...
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3979293 |
Apparatus for the purification of effluent
An improved process for the purification of effluent is disclosed in which oxygenated effluent is introduced into a treatment zone in which a part of the total amount of biologically activated...
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3979294 |
Clarification plant
A clarification plant has an activation tank which is provided with a surface ventilation rotor. Activated sludge from a re-clarification tank is recycled by means of a conduit connected to the...
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3977972 |
Method and apparatus for reclaiming contaminated liquid
Seal oil contaminated with H 2 S has air or N 2 bubbled therethrough for reducing the H 2 S content of the liquid. The bubbling of the gas through the contaminated liquid is achieved by way of a...
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3975276 |
Modular aerator and separator assembly for sewage treatment facility
An efficient, modular, drop-in type aeration and separation assembly for use in relatively small sewage treatment facilities is disclosed which includes perforated aeration conduits or diffusers...
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3972811 |
Waste converter system and method
A human conveyance having a toilet and a fuel burning engine is provided with an arrangement for converting waste from the toilet to a combustible gas and for feeding the gas to the engine where it...
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3970562 |
Aggregation treatment apparatus for waste water
An aggregation treatment apparatus for waste water which comprises a susping section for mixing particles of metal, metallic oxide or sintered metallic oxide into feed water such as sewage and...
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3968086 |
Double funnel device for oxygenating sewage
A method and an apparatus for continuously aerating sewage is in the form of a gun with a nozzle for producing a jet of oxygen-containing gas and a plurality of funnels converging downstream and...
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3966604 |
Apparatus for aerobic decomposition of sewage
An apparatus for the aerobic, sludge-free decompositon of sewage and the like, includes a plurality of separate, liquid filled compartments, one of the compartments having a rotatable,...
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3965009 |
Apparatus for biological purification of an effluent
In an installation for the biological purification of effluent at least two basins linked with each other are used. The effluent to be purified is supplied to one basin to introduce oxygen into the...
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3957633 |
Sewage treatment method and apparatus
In larger sewage water systems, there is a risk that the water may become rotten due to lack of oxygen. According to the invention, this problem is solved by letting the pump in a pump station of...
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3953326 |
Oxygen aeration system for contaminated liquids
In a process for the purification of an organically contaminated liquid in an aeration tank in the presence of activated sludge, wherein a gas having a higher concentration of oxygen than air is...
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3951788 |
Sludge control and decant system
A method and apparatus to automatically control the concentration of microorganisms in an activated sludge waste treatment system, consisting of establishing certain factors by laboratory...
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3951817 |
Sewage treatment tank and tube settler
A sewage treatment tank formed in upper and lower halves which engage each other along a parting line. The tank has an aeration chamber and an outlet chamber which are fluidly connected together at...
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3951758 |
Method of operating a purifying plant and tank for practicing said method
A method for operating an at least approximately round reactivating tank with a vertical axis for a purifying plant, according to which the sludge-water mixture to be purified is revolved in the...
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3950249 |
Sanitary waste treatment plant
A self-contained toilet and sanitary waste treatment plant that has a delivery system, a biological treatment system and a water recovery system. The delivery system includes a vacuum-type flush...
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3948771 |
Method and apparatus for separating suspended matter from a fluid by centrifugal force
The fluid to be treated is directed along a main flow path and past a flow-off edge on the concave side of the main flow path to produce a stationary whirl at least contacting the main fluid flow...
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3947358 |
Method for biologically treating sewage and an installation for carrying out the method
Apparatus for biologically treating sewage in an elongated circulation tank having a central partition extending along the longitudinal axis thereof thereby dividing the tank into two parallel flow...
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3945922 |
Installation for charging liquids, particularly fermentation liquids, with gas
Installation for gassing highly emulsified fermentation liquids in which liquid recirculated to the reaction vessel is gassed in a centrifugal pump to improve the efficiency of the process.
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3939067 |
Method and apparatus for treating sewage
A method and means for treating sewage using the activated sludge process. Sewage in a circular aeration chamber is given a spiral motion about the chamber centre and this motion is used to cause...
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3936381 |
Sewage treatment apparatus
Domestic sewage water treatment apparatus, comprising an outer tank and an inner tank installed within the outer tank, the bottom of the inner tank being distant from the bottom of the outer tank....
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3933642 |
Flocculation apparatus
Flocculation is carried out by mixing a coagulant, such as alum, with the fluid to be treated, such as water, and introducing the resultant mixture into the upstream end of a conductor. In a...
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3931370 |
Double funnel with baffle cascade aeration unit
Cascade Aeration mixing guns for oxygenating sewage are known in the art but cannot be properly scaled up, or paralleled in one unit. A double cascaded unit which incorporates integral baffles is...
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3927464 |
Method of manufacturing means for storing and transporting liquids, gases or fluidized solid particles under pressure
A method for manufacturing expandable channel means for storing and transporting liquids, gases or fluidized solid particles under pressure by arranging a pair of thin material sheets in abutting...
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3926810 |
Apparatus for the aeration of effluent with oxygen-containing gas
Effluent is aerated with oxygen-containing gas in an aeration basin. The basin subdivided into two halves is comprised of a plurality of aeration boxes which have flattened horizontal and...
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3925522 |
Apparatus for dissolving oxygen in water
An apparatus for dissolving oxygen in a body of water comprising an elongate trough shaped receptacle disposed horizontally in a water container below the water surface. A supply of oxygen gas is...
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3925206 |
System for home wastewater treatment and disposal
A system for the treatment and disposal of home wastewater suitable for use in areas where conventional systems such as septic systems are inappropriate due to poor soil percolation capabilities is...
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3925208 |
AEROBIC SEWAGE TREATMENT SYSTEM
Water containing organic solid material is directed into one end of a shallow rectangular tank having a cover and a series of internal walls defining a series of longitudinally disposed treating...
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3923657 |
Combined septic tank inlet pipe sight glass end plug and tank aerator system
A cylindrical sight glass housing is threaded to the end of the horizontal septic tank inlet pipe within a building basement which pipe extends through a vertical basement wall and terminates...
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3923656 |
Package aerobic waste treatment system
A package sewage treatment system which operates on an aerobic treatment basis and is particularly adapted for use with residential dwellings. The system includes a main holding tank to which is...
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