WO1982000135A1 - Waste treatment apparatus - Google Patents
Waste treatment apparatus Download PDFInfo
- Publication number
- WO1982000135A1 WO1982000135A1 PCT/US1980/000831 US8000831W WO8200135A1 WO 1982000135 A1 WO1982000135 A1 WO 1982000135A1 US 8000831 W US8000831 W US 8000831W WO 8200135 A1 WO8200135 A1 WO 8200135A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clarifier
- vessel
- flow
- baffle
- air
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/22—Activated sludge processes using circulation pipes
- C02F3/223—Activated sludge processes using circulation pipes using "air-lift"
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
- C02F3/1247—Small compact installations for use in homes, apartment blocks, hotels or the like comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Definitions
- the present invention relates to waste treatment sys tems and especially those waste treatment systems which are packaged or containerized units. Even more particularly, the present invention relates to an aerated waste treatment apparatus in which air flow provides the sole hydraulic drive of the treatment apparatus and combines with a pair of baffles to move waste to be treated in a helical path within a cylindrical vessel.
- a containerized or packaged sewage treatment plant which treats a received waste product on a continuous basis.
- a packaged sewage treatment plant which can be used on ships, oil rigs, and like installations.
- Such sewage treatment devices usually receive flow intermittently and must treat the flow in order to meet ecological and other marine standards.
- waste be treated such as sewage in an economical way utilizing as little energy as possible and as few moving parts as possible. It would also be desirable that a minimum of sludge removal would be required since the sludge disposal presents an extra problem. It would further be appreciated that the settling of sludge on any parts of the apparatus would present a sludge removal problem. Further, the accumulation of a sludge within the unit would produce an undesirable possibly corrosive attack on the unit itself. An accumulation of sludge within the unit further results in a deterioration of the treatment process.
- a sludge treatment apparatus produce a total homogenization of the fluids received from the waste stream in order that they be properly bio-degraded.
- Waste entering the unit would normally be heterogeneous in nature, containing solid waste material as well as some liquid material. A breakup of this material is necessary in order that it be treated properly.
- a problem is faced in that a clogging of the aeration assembly which provides bubbles to the unit will cause a degeneration of the treatment process or in fact a total stoppage of air flow to the vessel, transferring the process from aerobic to an anaerobic thus removing any treatment capability. It would be desirable that the aeration unit or air diffuser be of a nature which would reduce or prevent clogging by solid material which enters the unit.
- Chlorination normally must be provided to the unit as needed and not on a continuous basis. If chlorine is constantly provided to the unit it will be appreciated that over chlorination and waste of chlorine will be seen when low flow occurs. Conversely, high flow periods would provide an under chlorination and the ineffective killing of microorganisms before waste water is discharged from the unit. It would be desirable that a balanced system be provided for chlorinating any effluent material based on the actual volume of fluid which was to be chlorinated within the given time.
- the present invention solves these prior art problems and shortcomings by providing a waste treat ment apparatus having no moving parts in the basic hydraulic system.
- the waste treatment apparatus of the present invention provides a cylindrical vessel adapted to re ceive waste water flow therethrough to be treated.
- the vessel provides an aeration chamber at the outer periphery portion thereof with a desirable generally helical flow being generated by aeration bubbles striking angularly deposed baffle plates which are statically mounted within the aeration chamber.
- a clarifier is mounted at the central portion of the cylindrical vessel for clarifying a liquid which enters the clarifier from the aeration chamber through the clarifier inlet.
- the clarifier comprises a first settling chamber and a second decant chamber through which clear water is collected and transmitted to a chlorination chamber for subsequent discharge.
- the angularly deposed static baffle plates are mounted in the upper portion of the aeration chamber and aid in spinning the waste water in a circular or curved path.
- a pair of aeration diffusers mounted in the lower portion of the aeration chamber near the center of the cylindrical vessel move waste water to be treated upwardly and outwardly in a circular path.
- the combination of the diffusers and the baffles moves the waste water in a generally helical path for prolonged contact time and improved mechanical masceration.
- the helical path thus generated tends to move solids in a centrifugal fashion away from the clarifier entrance further enhancing the separation of solids from the decant liquor.
- Another object of the present invention is to provide a waste treatment apparatus having a constant scrubbing action which prevents sludge accumulation and the resulting deterioration of the treatment process.
- Still another object of the present invention is to provide a waste treatment apparatus having a centrifugal motion of fluids within the treatment vessel combined with a central clarififer, the centrifugal force tending to move solids and other undesirable suspended material away from the clarifier reducing opportunity to enter the clarifier thereby improving the mechanical separation of the solid/liquid waste stream
- Still another object of the present invention is to provide a waste treatment apparatus which eliminates the need for sludge removal and further sludge treatment.
- Another object of the present invention is to provide a chlorination chamber which chlorinates waste stream based on the volume of waste stream effluent.
- Still another object of the present invention is to provide a chlorine contact chamber which confines effluent and chlorine for concentrated chlorine contact prior to allowing a mixing of the chlorine and most recent effluent with the dilute effluent prior to a discharge from the unit.
- Still another object of the present invention is to provide a waste treatment system which is gravity operated, utilizing no other energy dependent driving force.
- Another object of the present invention is to provide a waste treatment system which can be retro fitted to existing installations, especially those having cylindrical tank portions.
- Figure 1 is a perspective partially cutaway view of the preferred embodiment of the apparatus of the present invention.
- Figure 2 is a top view of the vessel portion of the preferred embodiment of the apparatus of the present invention.
- Figure 3 is a front sectional view of the vessel portion of the preferred embodiment of the apparatus of the present invention.
- Figure 4 is a perspective view of the diffuser assembly portion of the preferred embodiment of the apparatus of the present invention.
- Figure 5 is a partial front view of the diffuser assembly portion of thepreferred embodiment of the apparatus of the present invention
- Figure 6 is an end sectional exploded view of the diffuser shown in Figures 4 and 5;
- Figure 7 is a detail view of the hanger portion of the preferred embodiment of the apparatus of the present invention as used with the diffuser as seen in Figures 4-6;
- FIG. 8 is a top sectional view of the chlorination valve assembly portion of the preferred embodiment of the apparatus of the present invention.
- Figure 9 is a sectional side view of the assembly shown in Figure 8.
- Figures 10-10B are schematic views illustrating fluid flow and'the scrubbing action of the preferred embodiment of the apparatus of the present invention and Figure 11 is a schematic illustration of the chlorine contact chamber portion of the preferred embodiment of the apparatus of the present invention.
- Waste treatment apparatus 10 provides a waste treatment vessel 11 having a continuous cylindrical side wall 12 and a bottom 13.
- Vessel 11 can be for example, welded steel, concrete, plastic, fiberglass, or like construction.
- Waste water to be treated is transmitted into vessel 11 through inflow pipe 15.
- a solid screen 20 attached at clarifier 50 removes bulk solid items from the inflowing fluids stream.
- Screen 20 also receives flow from recirculation lines 65, 75 and bubbles from diffuser 30 which flow and aeration help break up solids collecting in screen 20. Since loca tion of screen 20 is at the center portion of vessel 11, process material movement (normally urged to periphery by the centrifugal force created by circular flow - see Figure 10A) will not be inhibited.
- the outer peripheral portion of treatment vessel 11 provides an aeration chamber 25.
- arrows 24 indicate the flow direction of waste water within aeration chamber 25.
- the circular flow is generated by the combination of baffle plates or baffles 27, 28 and air diffusers 30.
- Preferably one diffuser 30 is provided for each baffle plate 27, 28 with each baffle 27, 28 and its corresponding diffuser 30 being generally vertically aligned whereby air bubbles discharged by a given diffuser 30 will proceed upwardly striking its corresponding baffle plate 27, 28 creating a deflection of the bubbles to create the desirable circular flow.
- gravitational flow through vessel 11, and this above described aeration by diffusers 30 and striking baffle plates 27, 28 is the hydraulic and mechanical driving force for apparatus 10. It will thus be further appreciated that the basic hydraulic drive of apparatus 10 will operate with minimum energy requirement and no moving parts, being a paragon of simplicity.
- aeration chamber 25 provides at least a pair of baffles 27, 28 which are angularly deposed with respect to vessel 11, and generally vertically placed above an air diffuser 30 with air bubbles discharged by diffuser 30 rising to strike baffle 27 or 28.
- the lowermost portion of aeration chamber 25 provides a pair or more of air diffusers 30 (preferably one air diffuser is provided for each baffle and mounted generally thereunder). Air flow upwardly thus strikes its corresponding baffle to produce a shear and produce a desired helical flow pattern as will be discussed more fully hereinafter.
- the construction of air diffusers 30 will be discussed more fully hereinafter.
- Each air diffuser 30 is mounted to vessel 11 by hanger assemblies 40 as best shown in Figure 7.
- FIGs 10-10B schematically illustrate the fluid flow generated by diffusers 30 and baffles 27-28 in combination with the wall construction of vessel 11.
- two diffusers 30 are illustrated and fluid flow is generally schematically shown by arrow 24.
- fluid flow proceeds upwardly in a direction along the walls of cone 53 and proceeds to the surface of vessel 11 where it contacts baffles 27, 28. Since baffles 27, 28 are angularly deposed as illustrated in Figure 1, will quickly become circular at the surface as indicated in Figure 10A.
- FIG 10 in combination with the circular flow as shown in Figure 10, there will be a vertical circular flow as shown in Figure 10.
- the combination it will be appreciated is a helical flow which will provide for an extended breakup path for solids which enter aeration chamber 25.
- the helical pattern will in fact be a double interwined helix produced by a pair of diffusers 30.
- Figure 10B illustrates the scrubbing action at pillar 54. Since fluid flow will proceed downwardly along side walls 12 and along chlorination walls 17, it will move inwardly toward pillar 54 and under diffusers 30. A washing action or scrubbing action around pillar 54 will be achieved as indicated, schematically in Figure 10B. This is important as it prevents the accumulation of sludge or other solid material on the bottom 13 of vessel 11 as is desirable The accumulation of sludge is not desirable, as it is an object of the present invention to provide a treatment apparatus which operates by removing all sludge material by microbiological activity. With the present invention, no sludge drawoff line is needed or provided since the microorganisms will dispose of all solid material which enters the unit and any solid material which might be recirculated from the clarifier to the aeration chamber 25.
- the central portion of treatment vessel 11 provides a clarifier 50.
- Clarifier 50 comprises, gener ally, a settling chamber 55 and a decant chamber 90.
- a clarifier piping assembly 60 is also provided which piping assembly 60 comprises generally a settlable solids recirculation line 65, air lift supply line 70, floating solid recirculation line 75, and a second air lift supply line 80.
- Air lift supply lines 70, 80 are used respectively with settlable solids recirculation line 65 and floating solid recirculation line 75.
- Clairifier 50 has an outer cylindrical clarifier wall 51 and provides a clarifier inlet 52 through which fluid will move from aeration chamber 25 into clarifier 50.
- Clarifier settling chamber 55 is generally cylindrical in shape having a lower generally conical section 53 which may be supported by pillar 54 as seen best in Figure 3.
- the lower and outermost portion of vessel 11 provides a chlorine contact chamber 150.
- Chlorine contact chamber 150 is generally triangular in section and ⁇ ircumscribes the entire periphery of vessel 11. In Figure 3 it can be seen that a section of chlorine contact chamber 150 is formed by a portion of the side wall 12, a portion of bottom 13, and chlorine chamber wall 17, which is angularly disposed with respect to bottom 13 at an angle of preferably 62 degrees or larger.
- This degree of inclination prevents the accumulation of settlable matter upon wall 17 during operation of the unit.
- Other surfaces on the unit are provided having an angle of preferably 62° to likewise prevent the accumulation of settlable solids thereupon.
- the angular slope of clarifier cone 53 as well as the side walls of diffuser 30 as will bediscussed more fully hereinafter. All of these surfaces as well as the chlorine chamber wall 17 are provided of an angle of at least 62 with the horizontal to prevent the accumulation of solids during operation as is desirable.
- Sewage for example has an angle of repose of sixty degrees (60°) and will settle on surfaces having that or lesser angular orientation. Further, this angular orientation benefits flow in a helical pattern as seen in Figures 10-10B.
- Decant chamber 90 is provided on the outside portion of clarifier 50. Ring baffle 92 separates clarifier settling chamber 55 from decant chamber 90. Note that decant chamber 90 receives only clear water which does not contain any settlable matter (which settles to the bottom of ⁇ ofte 53) and also does not contain any floating matter (which is collected at skimmer cup 77) of floating solids recirculation line 75. Flow into decant chamber 90 will generally be in a direction downwardly and under ring baffle 92 from clarifier settling chamber 55.
- a clear liquid collector pipe 100 Within decant chamber 90 is provided a clear liquid collector pipe 100.
- Collector pipe 100 would be perforated for example with a plurality of openings 102 being provided therein.
- fluid will be collected around clear liquid collector pipe 100 which will be essentially clear and not. contain any settlable or floating matter.
- Flow collected within pipe 100 will be transferred by gravity as the level in vessel 11 increases due to the constant or intermittent addition of waste into vessel 11.
- Clear liquid leaving collector pipe 100 will be discharged through outflow opening 106 through transfer loop 110 to chlorination valve 120.
- a weir invert 112 is provided in transfer loop 100 (See Figure 9) which determines the effective surface level in vessel 11 and thus the operating level of the unit.
- An outfall line 114 discharges fluid leaving weir invert 112 downwardly towards chlorination contact chamber 150. During the downward fall from weir invert 112 to chlorine contact chamber 150, fluid falling will activate chlorine dispensing valve 120 as will be described more fully herinafter. Once fluid has been chlorinated by valve 120, it will be retained for a period of time within chlorine contact chamber 150.
- Contact chamber 150 (see Figure 11) provides a primary chlorination chamber 160 and an effluent reservoir 170 which are separated by full baffle 162 and half baffle 164.
- chamber 160 (a concentrate of chlorine having been added) microorganisms including pathenogens are killed. It will be appreciated that a first generally smaller chamber 160 retains this smaller amount to perform the disinfectant function, since a high chlorine concentration is retained in chlorination chamber 160.
- FIGS 4-7 best show the construction of air diffusers assembly 30.
- Each diffuser assembly 30 provides an air inflow 31 with the air flow being generally shown by the arrows 32 in Figure 4.
- Each air diffuser provides a baffle 34 which prevents any short circuiting of air directly to the openings 33 immediately adjacent inflow 31.
- Diffusers 30 provide upper side walls 35 and lower side walls 37 which are angularly disposed with respect to one another to form a"diamond" cross-sectional shape.
- Side walls 35, 37 preferably form angles with the horizontal of approximately 62°. It has beenfound that the angle of 62° prevents the accumulation of any solid matter or other settlable material upon (interior or exterior) side walls 35, 37, thus keeping all solid matter in the suspension to enhance mechanical break-up and thorough waste stream treatment.
- a diffuser rib 36 is provided which is attached to the end walls 39 of diffuser 30.
- Each diffuser 30 provides end walls 39 to thus sealably contain air within diffuser 30 only allowing its escape through air discharge openings 33.
- Air discharge openings 33 are tear drop shaped and have a lower semicircular section 33a and an upper pointed section 33b.
- the uppermost elevational point of each opening 33 is indicated as the point 33c in Figure 4.
- the openings 33 so provided, allow the smallest bubble size possible to escape from diffuser assembly 30, thus providing for a fine bubble which maximizes air surface area and thus contact surface with the fluid being treated thereby enchancing the growth rate of microorganism necessary for biological treatment. This enhancement is a result of higher oxygen dissolution rate produced by the smaller bubble/ larger, surface area.
- diffuser 30 there can best be seen the detailed construction of diffuser 30. At the uppermost portion of Figure 6 there can be seen air inflow 31 which connects to compression bushing 310.
- a compression ring 312 which fits in between coupling 315 and compression bushing 310.
- bushing 310 and coupling 315 are threaded to threadably attach during operation.
- Coupling 315 connects to baffle tube 350.
- Baffle tube 350 provides an upper tube 320 and a lower baffle 34 section which are integrally attached.
- Baffle section 34 as best seen in Figure 4 is designed to prevent short circuiting of air flow from inflow 31 to openings 33.
- the tube 320 portion of baffle tube 350 provides a plurality of annular projecting ribs 330 which cooperate with corresponding annular grooves of coupling 315 as best seen in Figure 6.
- a suitable gasket 340 of neoprene for example, is provided which fits between the lower portion of coupling 315 and above the upper wall 35 of diffuser 30. It will be appreciated that the parts above described are assembled by first placing baffle tube within diffuser 30 and up through an opening provided at the intersection of upper walls 35 as best seen in Figure 6. Thereafter, gasket 340 is placed over the tube 320 portion of baffle tube 350 and coupling 315 is pressed thereonto with the grooves of coupling 315 as seen in Figure 6 attaching to and interlocking with the projecting ribs 330 of baffle tube 350. The connection of coupling 315 with air inflow 31 is achieved using compression bushing 310 and compression ring 312.
- Ring 312 would be placed on the upper portion of coupling 315 with compression bushing threadably attached thereto after.
- inflow line 31 was placed within compression bushing 310 as illustrated in Figure 4.
- a threaded engagement thereafter is made of compression bushing 310 onto coupling 315 to complete the connection.
- arrows 38 indicate the general flow of fluids through the rcwerr portion of diffuser 30.
- Diffuser rib 36 allows flow to proceed upwardly through the openings provided in the lower portion of diffuser 30 as shown by arrows 38.
- a clearance indicated by the letters "CL” is provided which preferably is smaller than the diameter of openings 33 at their smallest diameter. This would prevent the entry of any solids into diffuser 30, which would be large enough to clog openings 33.
- the diffuser rib 36 would preferably be of 62° angular orientation as is the case with side walls 35, 37 as above described.
- Hanger assemblies 40 are best seen in Figure 7.
- Each hanger provides a hanger foot 41 and a hanger arm 42 which are attachable at bushing 43.
- Bushing 43 provides right and left handed internal threads 43a while hanger 41 and hanger arm 42 provide external threads 44, 45, right and left handed respectively, for threaded engagement with and level adjustment through rotation of bushing 43.
- a base 46 on hanger assembly allows hanger assembly 40 to be attached to bottom 13.
- Hanger foot 41 would be of for example mild steel with bushing 43 of brass, hanger arm 42 of stainless steel and ring 47 would be phenolic. The above construction has been found to prevent electrolyses.
- Clarifier piping assembly as aforementioned provides 4 pipes as listed below: 65 - settlable solids recirculation line;
- Piping assembly 60 provides for the introduction of air into clarifier 50 for the recirculation of solid material collected within clarifier, both material which has settled and material which is floating.
- Settlable solids recirculation line 65 provides an inlet at the lowermost portion of clarifier cone 53 which recirculation line moves upwardly and provides a discharge immediately above aeration chamber 25.
- Cooperating with settlable solids recirculation line 65 is air lift supply 70.
- Floating solids are removed from clarifier 50 by flow into skimmer cup 77. Those fluids moving into skimmer cup 77 are discharged as air lift supply line 80 attaches to the lowermost portion of floating solids recirculation line 75 and discharges floating solids back into aeration chamber 25 for further treatment, as above described. Skimmer cup 77 rests on the intake end portion of floating solids recirculation line 75 and is provided to enlarge the effective surface area for the collection of floating solids. Chlorination is provided to fluid flowing from decant chamber 90 into transfer loop 110 and through outfall 114. A balanced flow is achieved based on the volume of flow leaving outflow openings 106 by means of chlorine dispensing valve 120. It will be appreciated by reading further that, chlorine is only added as needed and based upon the volume of flow rather than being continuously dispensed which results in either over chlorination or under chlorination, as is undesirable.
- a chlorine contact chamber allows a "balancing" of chlorine within the treated fluid before it is discharged from the unit to thus provide a generally constant residual chlorine content on any fluid leaving vessel 11 no matter what the incoming flow be it constant, variable, intermittent, or the like.
- Valve 120 provides the valve body 122 having a valve chlorine inlet 124 which could be threaded with threads 126.
- a suitable pipe or tubing could be connected by threading chlorine inlet 124 which would connect with a chlorine vial or like supply of chlorine to supply chlorine to valve 120 as needed.
- Valve 120 is actuated by water falling from weir invert 112 into outfall line 114.
- the flow of water from weir invert 112 is schematically illustrated by arrows 132.
- An actuator paddle 134 receives falling water 132 and pivotally moves arm 137 about pivot 135 responsive to the mass of falling water.
- a mounting disc 121 is provided for attaching valves 120 in outfall tee 115.
- Actuator arm bracket 137 mounts actuator arm 137 to valve body 122.
- Valve body 122 provides an inner bore 146 through which chlorine travels by gravity as shown by arrows 144 to valve seat 138.
- a valving member 136 forms a closure against seat 138 preventing any es cape of chlorine from discharge opening 139.
- fluid flow as indicated by arrows 132 will move paddle 134 downwardly pivoting arm 137 and moving valving member 136 upwardly from its seat 138 allowing chlorine to discharge through opening 139.
- paddle 134 will return to its closed position as shown in Figure 9 and valving member 136 will seat against 138 closing opening 139 as is desirable.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU66493/81A AU6649381A (en) | 1980-07-02 | 1980-07-02 | Waste treatment apparatus |
PCT/US1980/000831 WO1982000135A1 (en) | 1980-07-02 | 1980-07-02 | Waste treatment apparatus |
BR8008795A BR8008795A (en) | 1980-07-02 | 1980-07-02 | WASTE TREATMENT APPLIANCE |
JP50040781A JPS57501168A (en) | 1980-07-02 | 1980-07-02 | |
EP19810900157 EP0055705A4 (en) | 1980-07-02 | 1980-07-02 | Waste treatment apparatus. |
DK88582A DK88582A (en) | 1980-07-02 | 1982-03-01 | WASTE WATER TREATMENT DEVICE |
NO820654A NO820654L (en) | 1980-07-02 | 1982-03-02 | APPARATUS FOR TREATMENT OF WASTE MATERIALS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
WOUS80/00831800702 | 1980-07-02 | ||
PCT/US1980/000831 WO1982000135A1 (en) | 1980-07-02 | 1980-07-02 | Waste treatment apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1982000135A1 true WO1982000135A1 (en) | 1982-01-21 |
Family
ID=22154421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1980/000831 WO1982000135A1 (en) | 1980-07-02 | 1980-07-02 | Waste treatment apparatus |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0055705A4 (en) |
JP (1) | JPS57501168A (en) |
AU (1) | AU6649381A (en) |
BR (1) | BR8008795A (en) |
DK (1) | DK88582A (en) |
NO (1) | NO820654L (en) |
WO (1) | WO1982000135A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2315264A (en) * | 1995-10-27 | 1998-01-28 | Sam Kwang Aqua Clear Inc | Waste treatment apparatus |
ES2192153A1 (en) * | 2002-03-15 | 2003-09-16 | Treico Medio Ambiente S L | Waste water cleaning station for urban districts includes a buried compartmented tank with filters and controlled air injection to recirculate the water |
US7258788B2 (en) | 2004-03-12 | 2007-08-21 | Noram Engineering And Constructors Ltd. | Circular clarifier apparatus and method |
US7794592B2 (en) | 2006-06-29 | 2010-09-14 | Ralph Brown | Wastewater disinfection apparatus and methods |
CN101386447B (en) * | 2008-10-30 | 2011-06-08 | 上海大学 | Internal circulation impinging stream biomembrane fluidized bed reactor |
WO2014137298A1 (en) * | 2013-03-04 | 2014-09-12 | Pénzes Ladislav | Biological reactor for waste water purification |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2901114A (en) * | 1957-04-17 | 1959-08-25 | Mcphee | Sewage treatment apparatus |
US2999797A (en) * | 1957-04-04 | 1961-09-12 | Wallace & Tiernan Inc | Indicating and control system responsive to demand |
US3047492A (en) * | 1959-01-22 | 1962-07-31 | Anthony A Gambrel | Sewage digesting process |
US3118835A (en) * | 1960-10-27 | 1964-01-21 | Eugene W Butler | Complete oxidation sewage treatment plant |
US3173866A (en) * | 1962-03-28 | 1965-03-16 | Pritchard Products Corp | Apparatus for the treatment of sewage |
US3398089A (en) * | 1964-04-25 | 1968-08-20 | Ceskoslovenska Akademie Ved | Method and apparatus for the biological processing of liquids |
US3490700A (en) * | 1967-05-02 | 1970-01-20 | Struthers Wells Corp | Gas diffuser nozzle |
US3495711A (en) * | 1967-04-05 | 1970-02-17 | Stenberg Flygt Ab | System for treating sewage water using flocculation and aeration as a means thereby |
US3579440A (en) * | 1969-12-04 | 1971-05-18 | Tesco Chem Inc | Sewage treatment system |
US3608834A (en) * | 1968-08-30 | 1971-09-28 | David S Maclaren | Gas diffuser |
US3746638A (en) * | 1971-03-03 | 1973-07-17 | Bio Pure Inc | Batch sewage treatment system and method |
US3872003A (en) * | 1972-09-20 | 1975-03-18 | Chicago Bridge & Iron Co | High-oxygen treatment of waste with selective oxygen recirculation |
US3992299A (en) * | 1974-03-27 | 1976-11-16 | Hamworthy Engineering Limited | Sewage treatment devices particularly for marine applications |
US4008159A (en) * | 1975-01-21 | 1977-02-15 | Ontario Research Foundation | Renovation of waste water |
US4051204A (en) * | 1973-12-21 | 1977-09-27 | Hans Muller | Apparatus for mixing a liquid phase and a gaseous phase |
US4167479A (en) * | 1976-10-08 | 1979-09-11 | Ferdinand Besik | Process for purifying waste waters |
-
1980
- 1980-07-02 BR BR8008795A patent/BR8008795A/en unknown
- 1980-07-02 JP JP50040781A patent/JPS57501168A/ja active Pending
- 1980-07-02 EP EP19810900157 patent/EP0055705A4/en not_active Withdrawn
- 1980-07-02 AU AU66493/81A patent/AU6649381A/en not_active Abandoned
- 1980-07-02 WO PCT/US1980/000831 patent/WO1982000135A1/en not_active Application Discontinuation
-
1982
- 1982-03-01 DK DK88582A patent/DK88582A/en not_active Application Discontinuation
- 1982-03-02 NO NO820654A patent/NO820654L/en unknown
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2999797A (en) * | 1957-04-04 | 1961-09-12 | Wallace & Tiernan Inc | Indicating and control system responsive to demand |
US2901114A (en) * | 1957-04-17 | 1959-08-25 | Mcphee | Sewage treatment apparatus |
US3047492A (en) * | 1959-01-22 | 1962-07-31 | Anthony A Gambrel | Sewage digesting process |
US3118835A (en) * | 1960-10-27 | 1964-01-21 | Eugene W Butler | Complete oxidation sewage treatment plant |
US3173866A (en) * | 1962-03-28 | 1965-03-16 | Pritchard Products Corp | Apparatus for the treatment of sewage |
US3398089A (en) * | 1964-04-25 | 1968-08-20 | Ceskoslovenska Akademie Ved | Method and apparatus for the biological processing of liquids |
US3495711A (en) * | 1967-04-05 | 1970-02-17 | Stenberg Flygt Ab | System for treating sewage water using flocculation and aeration as a means thereby |
US3490700A (en) * | 1967-05-02 | 1970-01-20 | Struthers Wells Corp | Gas diffuser nozzle |
US3608834A (en) * | 1968-08-30 | 1971-09-28 | David S Maclaren | Gas diffuser |
US3579440A (en) * | 1969-12-04 | 1971-05-18 | Tesco Chem Inc | Sewage treatment system |
US3746638A (en) * | 1971-03-03 | 1973-07-17 | Bio Pure Inc | Batch sewage treatment system and method |
US3872003A (en) * | 1972-09-20 | 1975-03-18 | Chicago Bridge & Iron Co | High-oxygen treatment of waste with selective oxygen recirculation |
US4051204A (en) * | 1973-12-21 | 1977-09-27 | Hans Muller | Apparatus for mixing a liquid phase and a gaseous phase |
US3992299A (en) * | 1974-03-27 | 1976-11-16 | Hamworthy Engineering Limited | Sewage treatment devices particularly for marine applications |
US4008159A (en) * | 1975-01-21 | 1977-02-15 | Ontario Research Foundation | Renovation of waste water |
US4167479A (en) * | 1976-10-08 | 1979-09-11 | Ferdinand Besik | Process for purifying waste waters |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2315264A (en) * | 1995-10-27 | 1998-01-28 | Sam Kwang Aqua Clear Inc | Waste treatment apparatus |
GB2315264B (en) * | 1995-10-27 | 1999-07-07 | Sam Kwang Aqua Clear Inc | Improvements in treatment of sewage and waste water |
ES2192153A1 (en) * | 2002-03-15 | 2003-09-16 | Treico Medio Ambiente S L | Waste water cleaning station for urban districts includes a buried compartmented tank with filters and controlled air injection to recirculate the water |
US7258788B2 (en) | 2004-03-12 | 2007-08-21 | Noram Engineering And Constructors Ltd. | Circular clarifier apparatus and method |
US7985341B2 (en) | 2004-03-12 | 2011-07-26 | Noram Engineering and Construction Ltd. | Circular clarifier apparatus and method |
US7794592B2 (en) | 2006-06-29 | 2010-09-14 | Ralph Brown | Wastewater disinfection apparatus and methods |
CN101386447B (en) * | 2008-10-30 | 2011-06-08 | 上海大学 | Internal circulation impinging stream biomembrane fluidized bed reactor |
WO2014137298A1 (en) * | 2013-03-04 | 2014-09-12 | Pénzes Ladislav | Biological reactor for waste water purification |
EA029646B1 (en) * | 2013-03-04 | 2018-04-30 | Юрай Цсефалваы | Biochemical reactor for waste water purification |
Also Published As
Publication number | Publication date |
---|---|
DK88582A (en) | 1982-03-01 |
BR8008795A (en) | 1982-04-27 |
EP0055705A1 (en) | 1982-07-14 |
JPS57501168A (en) | 1982-07-08 |
NO820654L (en) | 1982-03-02 |
EP0055705A4 (en) | 1982-11-08 |
AU6649381A (en) | 1982-02-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4259182A (en) | Waste treatment apparatus | |
CA2345694C (en) | Wastewater treatment tank with influent gates and pre-react zone with an outwardly flared lower portion | |
US4664795A (en) | Two-stage waste water treatment system for single family residences and the like | |
US5874003A (en) | Wastewater treatment apparatus with floating clarifier | |
US6200472B1 (en) | Three stage sewage treatment system | |
US4440645A (en) | Dissolving gas in a liquid | |
NO803177L (en) | PROCEDURE AND APPARATUS FOR TREATMENT OF WASTE FLUIDS | |
NO153218B (en) | PROCEDURE AND APPARATUS FOR LIQUID TREATMENT | |
EP0527751A1 (en) | Modular clarifier with integral flocculator | |
US3709363A (en) | Extended aeration, activated sludge plant | |
AU6649381A (en) | Waste treatment apparatus | |
US10040004B2 (en) | Method for mixing industrial waste water within a gravity settling tank | |
US20170072373A1 (en) | System for mixing industrial waste water within a gravity settling tank | |
US6099722A (en) | Aerobic wastewater treatment system for small flows | |
US4279842A (en) | Air diffuser assembly | |
US4317723A (en) | Sewage treatment | |
US10040697B2 (en) | Method for mixing industrial waste water within a gravity settling tank | |
US4237004A (en) | Method for treating waste water | |
US3899423A (en) | Sewage treatment system | |
US5895566A (en) | Aerobic wastewater treatment system for small flows | |
US4268389A (en) | Sewage treatment | |
US5476583A (en) | Mixed liquor wasting system | |
US7172698B2 (en) | Anaerobic sludge digester | |
US5360538A (en) | Mixed liquor wasting system | |
US10526220B2 (en) | System and method for static mixing in an enhanced primary waste water treatment system using a fluid containment assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 1981900157 Country of ref document: EP |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR DK JP NO Designated state(s): AU BR DK JP NO |
|
AL | Designated countries for regional patents |
Designated state(s): AT CH DE FR GB LU NL SE Kind code of ref document: A1 Designated state(s): AT CH DE FR GB LU NL SE |
|
WWP | Wipo information: published in national office |
Ref document number: 1981900157 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1981900157 Country of ref document: EP |