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WO2025171427A1 - Toilettes à système de traitement des eaux usées - Google Patents

Toilettes à système de traitement des eaux usées

Info

Publication number
WO2025171427A1
WO2025171427A1 PCT/AT2025/060056 AT2025060056W WO2025171427A1 WO 2025171427 A1 WO2025171427 A1 WO 2025171427A1 AT 2025060056 W AT2025060056 W AT 2025060056W WO 2025171427 A1 WO2025171427 A1 WO 2025171427A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank
module
inlet opening
toilet
drain line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/AT2025/060056
Other languages
German (de)
English (en)
Inventor
Harald Gruendl
Oscar ESTRADA LEON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eoos Next GmbH
Original Assignee
Eoos Next GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eoos Next GmbH filed Critical Eoos Next GmbH
Publication of WO2025171427A1 publication Critical patent/WO2025171427A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/012—Special constructions of flushing devices, e.g. closed flushing system combined with movable closure elements in the bowl outlet
    • E03D5/014—Special constructions of flushing devices, e.g. closed flushing system combined with movable closure elements in the bowl outlet with devices for separate removal of liquids and solids
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/005—Black water originating from toilets
    • 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
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas

Definitions

  • the invention relates to a toilet with a wastewater treatment system comprising a separating toilet with a shell, a main drain line for wastewater streams contaminated with faeces and a secondary drain for urine wastewater streams, as well as a biogas tank which is connected to the main drain line, wherein the inlet opening of the secondary drain for the urine wastewater streams is arranged on a substantially vertical side wall on a drain pipe section downstream of the shell, wherein the transition region between the side wall of the pipe section and the inlet opening of the secondary drain is rounded at the top in order to passively guide the urine wastewater streams into the secondary drain via the teapot effect, and wherein a vacuum pump device for sucking the wastewater streams out of the main drain line is provided downstream of the main drain line and upstream of the biogas tank.
  • One wastewater treatment option that is particularly advantageous for developing countries is to feed the wastewater stream into a biogas tank.
  • the resulting biogas can then be used for energy generation or heating.
  • a very efficient, non-returnable toilet for this purpose which can be used without additional valve technology, is disclosed, for example, in WO 2019178622 A1.
  • This toilet separates a large portion of the urine wastewater stream into a secondary drain via the teapot effect.
  • vacuum toilets are used, which require low flushing water volumes.
  • these often have the disadvantage that the necessary technology, such as the vacuum pump, vacuum tank, and valves, is complex and difficult to maintain, which is why they are less commonly used in developing countries. Since a low flushing water volume is also advantageous for a downstream biogas tank, there is a need for better solutions to create a vacuum pump device for these applications.
  • toilet paper is not used for toileting. Instead, for personal hygiene, the affected body parts are washed directly with water on the toilet. In addition to flushing water, this regularly generates large quantities of water, which are also carried away via the toilet drain. These quantities of water also pose a problem for a downstream biogas tank, as they dilute the bacteria necessary for degrading the fecal-contaminated wastewater streams and thus also hinder the biological degradation processes.
  • the object of the present invention is therefore to create a toilet with a wastewater treatment system in which the downstream biogas tank is not burdened or impaired in its function by excessive water ingress or urine wastewater streams.
  • the device should be as simply constructed as possible so that it can also be used in developing countries with inadequate local infrastructure.
  • the aim of the invention is also to create a corresponding separation toilet that enables the separation of urine wastewater stream, wastewater stream contaminated with feces, and wash water stream as passively as possible without complex control technology.
  • a vacuum pump device provided for the toilet should be as simply constructed as possible, thus making maintenance easy even with limited technical resources.
  • a siphon is provided between the pipe section with the inlet opening of the secondary drain and the vacuum pump device, wherein the damming edge of the siphon located inside the pipe diameter is higher than the inlet opening of the secondary drain.
  • a further preferred feature is that the secondary drain is connected downstream to a plant bed or, if necessary, to several constructed wetlands, which may be connected in a cascade.
  • the urine water streams can be used for downstream constructed wetlands, and the wastewater generated from the washing processes is also fed to the constructed wetlands for nitrogen removal.
  • several constructed wetlands can be connected in a cascade to the secondary drain.
  • the cascade-like design means that no additional pumps are required, and the resulting wastewater streams are passively distributed via the constructed wetland.
  • the overflow from the biogas tank can also be fed to the constructed wetland.
  • the water treated in this way therefore also meets the ISO 30500 standard for sanitary facilities not connected to a sewer system and can also be used, for example, for irrigation without contaminating the soil and groundwater.
  • the vacuum pump device is constructed from interconnectable modules, wherein the device comprises a suction module containing the pump motor, a tank module with an inlet opening for the main discharge line, and an end module for connection to a downstream discharge to the biogas tank, wherein the modules are preferably arranged one above the other in a tower-like manner and are interconnectable.
  • This modular structure allows the vacuum pump device to be installed as a space-saving tower, with each module being easy to remove and maintain.
  • the modules can, for example, be made of plastic, or the base housings of the modules can also be made of ceramic, which facilitates local production of the components in developing countries.
  • a further preferred feature is that the suction module has a downward-facing connection for attachment to the top of the tank module.
  • the suction module has a pump motor, by means of which a negative pressure can be generated at the connection to the tank module.
  • a conventional vacuum cleaner motor for example, can be used as the pump motor. Due to the configuration of the suction module, motors from any manufacturer can be used. This significantly improves the availability of spare parts and ease of maintenance.
  • the special design of the vacuum tank makes it possible to use particularly small amounts of flush water while simultaneously ensuring efficient onward transport of wastewater streams contaminated with feces.
  • the entire volume of the tank is available to create the vacuum.
  • the wastewater streams contaminated with feces only reach the lower part of the tank, meaning less flush water is required for onward transport.
  • the pump motor located at the top of the suction module does not need to be as powerful as is the case with conventional vacuum toilets. Due to the composting toilet itself, apart from wastewater streams contaminated with feces and the small amount of flush water, no other wastewater streams reach the vacuum tank and therefore also not the downstream biogas tank.
  • the end module is connectable on the inlet side to the outlet opening of the tank module and on the outlet side to the downstream biogas tank.
  • a pivoting valve flap is provided in the end module, which tightly seals the vacuum tank when a negative pressure is generated and otherwise opens it for the removal of the wastewater stream contaminated with feces.
  • a closable opening is also provided in the end module, through which a user can manually feed organic waste into the drain line toward the biogas tank downstream of the valve flap. Due to the pivoting valve flap, which is essentially also controlled by the negative pressure generated in the tank, no additional control technology is required, and the end module is thus a purely mechanical component that is easy to maintain. The additional opening allows the user to feed additional organic waste into the biogas tank, thus increasing its efficiency.
  • the pivoting valve flap can also be serviced via the additional opening without having to disassemble the entire vacuum pump device.
  • the separation toilet has a shell, a main drain line for wastewater streams contaminated with feces, and a secondary drain for urine wastewater streams.
  • the inlet opening of the secondary drain for the urine wastewater streams is arranged on a substantially vertical side wall on a drain pipe section downstream of the shell, and the transition region between the side wall of the pipe section and the inlet opening of the secondary drain is rounded at the top in order to passively guide the urine wastewater streams into the secondary drain via the teapot effect.
  • An advantageous feature is that a siphon is provided between the pipe section with the inlet opening of the secondary drain and the further main drain line, the retaining edge of the siphon located inside the pipe diameter being higher than the inlet opening of the secondary drain.
  • a separation toilet with the special design of the siphon is particularly suitable for use with a wastewater treatment plant of the type described above, since the washing water can be effectively and passively discharged via the secondary drain.
  • a vacuum pump device for a toilet with a wastewater treatment system as described above is to be provided, which is constructed from interconnectable modules.
  • the device comprises a suction module containing the pump motor, a tank module with an inlet opening for the main drain line, and an end module for connection to a downstream drain.
  • the modules are preferably arranged one above the other in a tower-like manner and are interconnectable.
  • FIG. 1 is a schematic diagram of a toilet according to the invention with waste water treatment system
  • Fig. 2 is a perspective schematic sectional view of a separation toilet with vacuum pump device
  • Fig. 3 is a schematic sectional view of a composting toilet.
  • FIG. 1 schematically illustrates the arrangement of a toilet with a wastewater treatment system according to the invention.
  • the starting point is a separating toilet 1 with a bowl 2, a main drain line 3, and a secondary drain line 4.
  • Urine wastewater streams are passively drained into the secondary drain line 4 via the teapot effect, without any additional valve device.
  • a siphon 9 is located between the shell 1 and the main drain line 3.
  • the retaining edge 10 within the siphon is higher than the inlet opening 6 of the secondary drain 4. If additional water is introduced into the shell 2 during washing processes, this is drained via the secondary drain 4 without additional valves.
  • the secondary drain 4 is fed directly into cascaded constructed wetlands 11, which are fertilized and irrigated.
  • the main drain 3 is connected to a vacuum pump device 8. During a flushing process, this pump transports wastewater streams contaminated with feces via the main drain 3 to a downstream biogas tank 5.
  • biogas tank 5 the organic components of the wastewater streams contaminated with feces, as well as any organic waste added via the opening 26 in the end module 16 of the vacuum pump device 8, are broken down by appropriate microorganisms to generate biogas 27.
  • biogas tank 5 it is necessary to keep the wastewater streams as free of urine as possible.
  • only the smallest possible amount of rinse water should be introduced to avoid further diluting the microorganisms in the biogas tank 5.
  • the produced biogas 27 can subsequently be used for various applications 28, such as heating, cooking, or generating electricity.
  • the overflow from the biogas tank is also fed to the constructed wetland system 11, so that all of the produced wastewater is treated there and subsequently available for further applications.
  • Fig. 2 shows a schematic perspective sectional view of the composting toilet 1 with the vacuum pump device 8 arranged thereon.
  • the vacuum pump device 8 is only activated during a flushing process in order to transport wastewater streams via the main drain line 3.
  • the vacuum pump device 8 is constructed from three modules 12, 14, 16 arranged one above the other in a tower-like manner, which facilitates the maintenance and replacement of individual components.
  • Located on top of the vacuum pump device 8 is the suction module 12, which is connected via a lower connection 17 to the upper connection 18 of a tank module 14.
  • the suction module 12 houses the pump motor 13, which generates a negative pressure in the tank module 14. Since only small quantities of flush water need to be transported, motors from vacuum cleaners from different manufacturers, for example, can be used here.
  • the tank module 14 is connected to the end module 16 at its outlet opening 19 and to the suction module 12 at its upper connection 18. Together, the three modules 12, 14, 16 thus form a vacuum tank.
  • the tank module 14 also contains a separating element 20, which divides the vacuum tank into an upper volume 23 and a lower volume 24.
  • the separating element 20 is located approximately at the level of the inlet opening 15 and, together with the side wall, forms a downwardly open channel 21 which runs spirally around the circumference of the tank module 14. In the center of the separating element 20 there is a funnel-shaped passage opening 22. This allows the entire tank volume to be used to build up the negative pressure.
  • the end module 16 houses the lower end of the vacuum tank, which can be closed by a pivoting valve flap 25.
  • the pivoting valve flap 25 requires no drive or control, but automatically closes the vacuum tank when negative pressure builds up. When a wastewater stream to be transported further encounters the flap and the negative pressure is released, the valve flap 25 opens automatically due to the weight of the wastewater stream.
  • the end module also has a closable opening 26 through which further organic waste, such as kitchen waste, can be manually fed towards the biogas tank 5.
  • Fig. 3 shows a schematic sectional view of a separation toilet 1.
  • the secondary drain 4 has a rounded transition area 7 at the inlet opening 6 on the top side, which ensures that, during use, the urine wastewater flow is directed into the secondary drain 4 via the teapot effect.
  • the siphon 9, located between the shell 2 and the main drain line 3, has a retaining edge 10 that is higher than the inlet opening 6 of the secondary drain line 4.
  • This means that the retaining edge 10 is at least higher than the lower edge of the inlet opening 6, so that any additional water introduced, which, for example, enters the shell 2 through a separate water supply during a washing process, automatically drains away via the secondary drain line.
  • any additional water introduced which, for example, enters the shell 2 through a separate water supply during a washing process, automatically drains away via the secondary drain line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

L'invention concerne des toilettes comportant des toilettes à séparation (1) qui comporte une cuvette (2), une conduite d'évacuation principale (3) pour des flux d'eaux usées chargées en matières fécales et une dérivation secondaire (4) pour des flux d'eaux usées urinaires, ainsi qu'un réservoir de biogaz (5) qui est raccordé à la conduite d'évacuation principale (3), l'orifice d'entrée (6) de la dérivation secondaire (4) étant ménagée au niveau d'une paroi latérale sensiblement verticale, sur une partie de tuyau d'évacuation en aval de la cuvette (2), la zone de transition (7) entre la paroi latérale de la partie de tuyau et l'orifice d'entrée (6) de la dérivation secondaire (4) étant arrondie sur la face supérieure, de manière à guider passivement les flux d'eaux usées urinaires jusque dans la dérivation secondaire (4) par effet théière, et un dispositif de pompe à vide (8), en aval de la conduite d'évacuation principale (3) et en amont du réservoir de biogaz (5), étant destiné à aspirer les flux d'eaux usées hors de la conduite d'évacuation principale (3). Un siphon (9) est prévu entre la partie de tuyau comportant l'orifice d'entrée (6) de la dérivation secondaire (4) et le dispositif de pompe à vide (8), le bord de retenue (10) du siphon (9) qui se trouve à l'intérieur du diamètre du tube étant situé plus haut que l'orifice d'entrée (6) de la dérivation secondaire (4).
PCT/AT2025/060056 2024-02-16 2025-02-14 Toilettes à système de traitement des eaux usées Pending WO2025171427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50127/2024A AT528035A1 (de) 2024-02-16 2024-02-16 Toilette mit Abwasseraufbereitungsanlage
ATA50127/2024 2024-02-16

Publications (1)

Publication Number Publication Date
WO2025171427A1 true WO2025171427A1 (fr) 2025-08-21

Family

ID=94772186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2025/060056 Pending WO2025171427A1 (fr) 2024-02-16 2025-02-14 Toilettes à système de traitement des eaux usées

Country Status (2)

Country Link
AT (1) AT528035A1 (fr)
WO (1) WO2025171427A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR441052A (fr) * 1911-03-08 1912-07-29 Max Hoffmann Dispositif pour diviser les matières dans les installations de cabinets d'aisances
WO2007004169A1 (fr) * 2005-06-30 2007-01-11 Afriloo (Proprietary) Limited Evacuation des excrements humains
CN205116350U (zh) * 2015-10-28 2016-03-30 王凤蕊 卫生间固液分离大便器及卫生间排水系统
WO2019178622A1 (fr) 2018-03-19 2019-09-26 Eoos Design Gmbh Toilettes à séparateur
WO2023288331A1 (fr) * 2021-07-16 2023-01-19 Georgia Tech Research Corporation Système de toilettes individuelles sans égout par oxydation d'eau

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101824849A (zh) * 2009-03-06 2010-09-08 郑亚蓉 分排式节水坐便器
CN201649696U (zh) * 2010-04-06 2010-11-24 廖大中 带有沼气罐外壳缸体的房屋
DE202013011431U1 (de) * 2013-12-20 2015-03-23 Evac Gmbh Vakuumtoilette mit Fliehkraftabscheider
AT525155B1 (de) * 2021-06-14 2023-02-15 Eoos Next Gmbh Vakuumtoilette sowie ein Vakuumtank für eine Vakuumtoilette

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR441052A (fr) * 1911-03-08 1912-07-29 Max Hoffmann Dispositif pour diviser les matières dans les installations de cabinets d'aisances
WO2007004169A1 (fr) * 2005-06-30 2007-01-11 Afriloo (Proprietary) Limited Evacuation des excrements humains
CN205116350U (zh) * 2015-10-28 2016-03-30 王凤蕊 卫生间固液分离大便器及卫生间排水系统
WO2019178622A1 (fr) 2018-03-19 2019-09-26 Eoos Design Gmbh Toilettes à séparateur
WO2023288331A1 (fr) * 2021-07-16 2023-01-19 Georgia Tech Research Corporation Système de toilettes individuelles sans égout par oxydation d'eau

Also Published As

Publication number Publication date
AT528035A1 (de) 2025-09-15

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