WO2010147582A1 - Method for treating waste water - Google Patents
Method for treating waste water Download PDFInfo
- Publication number
- WO2010147582A1 WO2010147582A1 PCT/US2009/047627 US2009047627W WO2010147582A1 WO 2010147582 A1 WO2010147582 A1 WO 2010147582A1 US 2009047627 W US2009047627 W US 2009047627W WO 2010147582 A1 WO2010147582 A1 WO 2010147582A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- aeration plate
- bio
- opening
- substrates
- 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
- C02F3/20—Activated sludge processes using diffusers
- C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
- C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust propellers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
- B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
- B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
- B01F23/232311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit the conduits being vertical draft pipes with a lower intake end and an upper exit end
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/503—Floating mixing devices
Definitions
- the present invention relates generally to waste water treatment. More specifically, the present invention relates to a method for generating discrete flows in a body of water, resulting in greater biological activity and consequent increase in in situ sludge digestion.
- a body of water has a depth of at least 3 feet and can be as much as 50 feet, and the water temperature thereof is greater than the freezing point of water.
- the body of water may have no flow or stagnant flow or may have a flow like a river.
- the body of water is not an ocean or a sea and it has at least two banks thereof, which can be seen with the naked eye or with binoculars at 30Ox magnification.
- the body of water usually leads to a second body of water which is larger. Examples of the body of water in this application include ponds, rivers, channels, streams, bays, springs, creaks, moats, millponds, lakes, reservoirs and the like.
- the present invention provides a passive water circulating apparatus having an aeration plate having a central opening; a plurality of flotation members joined to the aeration plate, the plurality of flotation members being adapted and disposed for maintaining buoyancy of the aeration plate above a water surface; an uplift tube member having a central orifice in fluid communication with the central opening of the aeration plate; a concentrator member disposed at an end of the uplift tube opposite the aeration plate, the concentrator member having a bottom opening in fluid communication with an upper opening, the bottom opening being wider than the upper opening and the upper opening being connected to the uplift tube member; and a plurality of bio-substrates suspended from the concentrator member below the bottom opening, the plurality of bio- substrates providing a substrate for growth of microbes.
- the passive water circulating apparatus of the present invention optionally includes an aeration device situated at a position along a path of the fluid communication, the aeration device adapted for generating bubbles directed into the path of the fluid communication.
- the passive water circulating apparatus of the present invention optionally includes a perforated inlet member positioned between the uplift tube member and the concentrator member and connecting the uplift tube member to the concentrator member.
- the present invention performs the steps of promoting growth of microbes on a plurality of bio-substrates; funneling waste gases produced by the microbes along a confined fluid path; transporting water through the fluid path using the waste gases; and releasing the waste gases and transported water at an opening of the confined fluid path located at or above a water surface.
- FIG. 1 illustrates a schematic representation of an embodiment of a passive circulator in accordance with the present invention
- FIG. 2 illustrates a schematic representation of another embodiment of a passive circulator in accordance with the present invention.
- FIG. 3 illustrates a schematic representation of a further embodiment of a passive circulator in accordance with the present invention.
- An embodiment of a passive circulator 100 shown in FIG. 1, is constructed of an aeration plate 102 formed of a high density plastic material, such as polyethylene (HDPE) plastic. Since HDPE has a similar density to water, flotation members 104 are disposed at intervals along a surface of the aeration plate 102 to provide increased buoyancy.
- the aeration plate 102 has a central opening through which upwelling water can flow.
- An uplift tube member 106 is attached to the central opening.
- the uplift tube member 106 has an orifice running the length of the uplift tube member 106 through which water can pass.
- the uplift tube member 106 is connected to the aeration plate 102 so that water can flow up the uplift tube orifice, through the central opening, and radiate out over the aeration plate 102, to flow back into the body of water. The passive process by which this water flow is generated will be discussed in further detail below.
- a concentrator member 108 is attached at a bottom end of the uplift tube member 106, opposite the aeration plate 102.
- the concentrator member 108 is generally shaped as a funnel, with a large diameter opening at a lower portion. In an embodiment, it has a smaller diameter opening at an upper portion thereof.
- the upper and lower portion openings are in fluid communication with one another.
- the concentrator 108 receives an influx of a water and bubble mixture at the lower opening and funnels the mixture up and through the upper opening. The mixture flows through the upper opening and into the uplift tube member 106, and eventually to the aeration plate 102.
- the bubbles mentioned above, and the driving force behind the water flow generation of the present embodiment is provided by anaerobic and facultative microbes that produce methane and/or CO 2 gases as waste products in their digestion process.
- These microbes are grown on a plurality of bio-substrate members 110 that are suspended directly below, and along the perimeter of, the lower opening of the concentrator member 108.
- the bio-substrate members 110 can be formed of any non- degradable material that allows microbes to easily attach and grow on its surfaces.
- the bio-substrate members 110 have a large surface area.
- the biomat must have sufficient amount of surface area to sustain and grow the microbes.
- the biosubstrate member 110 has a sufficient surface area per volume of material ratio to grow and sustain the microbes.
- the ratio of surface area to volume of the biomat ranges from about 200 ft 2 /ft 3 to about 700 ft 2 /ft 3 of material.
- the ratio of surface area to volume of the biomat ranges from about 250 ft 2 /ft 3 to about 600 ft 2 /ft 3 of material.
- the ratio of surface area to volume of the biomat ranges from about 300 ft 2 /ft 3 to about 500 ft 2 /ft 3 of material.
- the biomat can be any shape, in one embodiment, the biomat is shaped like a coil, cylinder or spring. Interwoven materials, such as polyester-based aquarium filter medium is one embodiment of the type of material that can be used as a biomat.
- the biomat is preferably porous.
- the biomat is open weaved to allow water to flow through fully, so that the microbes have access to nutritional rich water.
- the open weave biomats are available at Polyflow Pond Filters, Acworth, GA.
- biosubstrate has a sufficient surface area to volume ratio that permits microbes to attach and grow to produce a bubble column, as described below.
- the microbe population reaches a steady state, that is, the total mass of material attached to the bio-substrate members 110 is substantially not changing ("critical mass"), on the bio-substrate members 110, the waste gases produced by these microbes as they break down waste matter in the water form a bubble column directly below the lower opening of the concentrator member 108.
- critical mass the total mass of material attached to the bio-substrate members 110
- the cohesive properties of water cause the bubbles, which are rising to the surface through the apparatus of the present invention, to create an upflow current 120 that carries water from the lower levels of the lake or pond upward as well. In this way, a passive current is generated through the concentrator member 108 and out, over the aeration plate 102.
- thermocline is a difference in density caused by warmer temperature water situated above and in fluid communication with a lower, colder, denser layer of water.
- thermocline may be natural or it may be "unnatural", as the low density/high density interface is influenced by the apparatus 100.
- thermocline is defined as the interface between a low density layer and a high density layer, situated on top thereof, regardless of the cause of the density difference.
- the increased biomass present on the bio- substrates 110 attracts fish to the area, since the biomass acts as the initial link in the food chain.
- the feeding action of the fish on the microbes living on the bio-substrates 110 helps maintain a productive and efficient mitigation of organic pollutants in the water.
- the present invention described above has the advantages of circulating and oxygenating large volumes of water without the need of an external power source; promoting anaerobic digestion of nutrients and organic pollutants; encouraging an increase in fish populations; reducing algae growth; and reducing surface malodor caused by hydrogen sulfide produced from decay of organic matter in the absence of oxygen.
- FIG. 2 a second embodiment of a passive circulator 200 is shown. Elements of the present embodiment that are similar to elements in the embodiment shown in FIG. 1 are assigned the same reference numerals. Essentially, the present embodiment operates in much the same way as described for the previous embodiment. The difference lies in the presence of a perforated inlet portion 202 disposed at a lower area of the uplift tube member 106.
- the perforated inlet portion 202 draws water from the region above the thermocline layer into the uplift tube member 106 and mixes this water with water being drawn in by the upflow current 120 below the thermocline layer.
- This design increases the recirculation rate of current 122 compared to the current 120.
- This design reduces the transport of malodorous gases produced in anaerobic regions of the body of water - usually located in deep calm areas below the thermocline - to the surface.
- the amount of deep-water upflow is reduced and thus the malodorous gases from the deep-water regions of the body of water are released into the atmosphere at a slower rate, preferably at a rate that is generally undetectable by people.
- FIG. 3 Another embodiment of a passive circulator 300, shown in FIG. 3, is equipped with an aeration device 302. All other structural elements of the present invention are identical to the embodiment shown in FIG. 1 and thus are referenced using identical reference numerals as in FIG. 1.
- the passive circulator 300 can begin operating immediately after installation, unlike the embodiment shown in FIG. 1, which requires many days to build up the required steady-state mass of microbes on the surface of the bio-substrate 110. Until the bio-substrate 110 is sufficiently populated with microbes in the embodiment shown in FIG. 1, the passive circulator operates inefficiently.
- the aeration device 302 begins mechanically generating bubbles immediately, causing water to flow upward into the concentrator member 108, as described hereinabove.
- the aeration device 302 can be turned off or removed. Alternatively, the aeration device 302 can be used to provide additional upflow current.
- the aeration device 302 is shown as being placed on the lake/pond bed. However, the aeration device 302 can be placed at any point along the upflow path. In fact, when the body of water contains a significant amount of malodorous gases at deep water levels, the aeration device 302 can be advantageously placed within the concentrator member 108 or uplift tube member 106 above the thermocline layer. In this way, the amount of deep water transported to the surface can be reduced.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- 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)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2009/047627 WO2010147582A1 (en) | 2009-06-17 | 2009-06-17 | Method for treating waste water |
CA2764384A CA2764384C (en) | 2009-06-17 | 2009-06-17 | Method for treating waste water |
MX2009008482A MX2009008482A (en) | 2009-06-17 | 2009-06-17 | Method for treating waste water. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2009/047627 WO2010147582A1 (en) | 2009-06-17 | 2009-06-17 | Method for treating waste water |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010147582A1 true WO2010147582A1 (en) | 2010-12-23 |
Family
ID=43356640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/047627 WO2010147582A1 (en) | 2009-06-17 | 2009-06-17 | Method for treating waste water |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA2764384C (en) |
MX (1) | MX2009008482A (en) |
WO (1) | WO2010147582A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113426815B (en) * | 2021-07-08 | 2022-07-19 | 合肥工业大学 | Method for restoring VOCs pollution of low-permeability soil body through in-situ enhanced aeration |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020068804A (en) * | 2001-02-22 | 2002-08-28 | 김매자 | Method for removing sludge and system for treating sludge |
KR100409056B1 (en) * | 1995-05-23 | 2004-03-22 | 가부시키 가이샤 에바라 세이사꾸쇼 | Aerobic treatment method and treatment tank of sewage |
KR100432298B1 (en) * | 2001-11-19 | 2004-05-22 | 주식회사 앤바이오 | Recovery Treatment Equipment of wastewater and concentrated metabolic materials thereof |
KR200355479Y1 (en) * | 2004-02-18 | 2004-07-07 | 신성공영 주식회사 | Depth Layer Sequential Bath Reacting Waste Water Disposal System |
-
2009
- 2009-06-17 WO PCT/US2009/047627 patent/WO2010147582A1/en active Application Filing
- 2009-06-17 MX MX2009008482A patent/MX2009008482A/en active IP Right Grant
- 2009-06-17 CA CA2764384A patent/CA2764384C/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100409056B1 (en) * | 1995-05-23 | 2004-03-22 | 가부시키 가이샤 에바라 세이사꾸쇼 | Aerobic treatment method and treatment tank of sewage |
KR20020068804A (en) * | 2001-02-22 | 2002-08-28 | 김매자 | Method for removing sludge and system for treating sludge |
KR100432298B1 (en) * | 2001-11-19 | 2004-05-22 | 주식회사 앤바이오 | Recovery Treatment Equipment of wastewater and concentrated metabolic materials thereof |
KR200355479Y1 (en) * | 2004-02-18 | 2004-07-07 | 신성공영 주식회사 | Depth Layer Sequential Bath Reacting Waste Water Disposal System |
Also Published As
Publication number | Publication date |
---|---|
MX2009008482A (en) | 2011-04-05 |
CA2764384A1 (en) | 2010-12-23 |
CA2764384C (en) | 2018-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5549828A (en) | Method and apparatus for in Situ water purification including sludge reduction within water bodies by biofiltration and for hypolimnetic aeration of lakes | |
US6773595B2 (en) | Compartmentalized facultative lagoon and method of creating and maintaining such a lagoon | |
US7462285B2 (en) | Wastewater purification method and apparatus | |
US5344557A (en) | Incubator for biological cleaning of fluids | |
AU2015231819A1 (en) | Wastewater treatment with primary treatment and MBR or MABR-IFAS reactor | |
CN105174427B (en) | Porous plate oxygen-increasing device for disperseing underwater bubble | |
CA2747588C (en) | System and method for reducing pollution in a body of water | |
US8092678B2 (en) | Systems and methods for wastewater treatment | |
US6780318B2 (en) | Method for recovering a disposal trench with a biomat slime, and method for operating a waste treatment vessel | |
CN101691257A (en) | Submerged ecological bed for purifying eutrophic waterbody and application thereof | |
CN109734198B (en) | Dioxygen layer biofilm reactor for wastewater treatment and wastewater treatment method | |
US8066879B2 (en) | Method for treating waste water | |
CN106132520A (en) | Aeration and biological membrane reactor fibrous membrane | |
CN101823794A (en) | Method for fast biomembrane formation of fluidized filler in reaction technology of fluidized carrier biomembrane | |
CN101327986A (en) | Eutrophication water purification apparatus | |
CA2764384C (en) | Method for treating waste water | |
RU52397U1 (en) | DEVICE FOR BIOLOGICAL SEWAGE TREATMENT | |
CN105417688A (en) | Spherical filler and special-shaped carbon filler and their applications | |
Semmens | Alternative MBR configurations: using membranes for gas transfer | |
CN113307370A (en) | Barrel for water purification | |
CN206244507U (en) | A kind of fluid bed MBR equipment | |
US11186505B1 (en) | Treatment systems including cover systems and media | |
CN110117084A (en) | A kind of aeration sewage treatment method | |
CN111453843B (en) | Liftable oxygenation and anaerobic sludge digestion biochemical device | |
WO2024034541A1 (en) | Device and method for generating methane gas and involving removal of carbon dioxide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2009/008482 Country of ref document: MX |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09846283 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2764384 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09846283 Country of ref document: EP Kind code of ref document: A1 |