WO1999064373A1 - Systeme de compostage pour matieres de vidange et autres substances biodegradables - Google Patents

Systeme de compostage pour matieres de vidange et autres substances biodegradables Download PDF

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Publication number
WO1999064373A1
WO1999064373A1 PCT/SE1999/001038 SE9901038W WO9964373A1 WO 1999064373 A1 WO1999064373 A1 WO 1999064373A1 SE 9901038 W SE9901038 W SE 9901038W WO 9964373 A1 WO9964373 A1 WO 9964373A1
Authority
WO
WIPO (PCT)
Prior art keywords
inclined plane
container
plane
broken down
arrangement according
Prior art date
Application number
PCT/SE1999/001038
Other languages
English (en)
Swedish (sv)
Inventor
Bertil Östbo
Original Assignee
Oestbo Bertil
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 Oestbo Bertil filed Critical Oestbo Bertil
Priority to AU48125/99A priority Critical patent/AU4812599A/en
Publication of WO1999064373A1 publication Critical patent/WO1999064373A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/04—Fertilisers from human or animal excrements, e.g. manure from human faecal masses
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C05F17/95—Devices in which the material is conveyed essentially vertically between inlet and discharge means
    • C05F17/955—Devices in which the material is conveyed essentially vertically between inlet and discharge means the material going from platform to platform
    • 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
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin
    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Definitions

  • the present invention relates to a composting arrangement for night-soil and other degradable material, comprising a container with a first inclined plane, arranged in the lower part of the container, for receiving material which is to be broken down from a toilet bowl or the like, which is connected to an opening arranged in the top surface of the container, and a second inclined plane which is located above the first plane.
  • the compost container For the compost container to have the required capacity to cope with peak loads, it will need to have a large volume and considerable height, especially where the material is supplied at the highest end of the inclined plane.
  • the volume of the composting material decreases as it is being broken down and as it moves towards the lowermost end of the plane. This means that there is an unused volume in the container at the lower end of the inclined plane if the container is designed with substantially constant height. Even if the height of the container is reduced towards the lowermost end of the plane, it is often difficult to achieve any practical use of the space which is thus freed. Such a shape also complicates the manufacture of the container, making it more expensive.
  • SE 376229 describes a composting technique which involves urine separation, and where faeces is composted separately and urine composted separately, entirely independently of each other and without being mixed.
  • the known arrangement comprises a single toilet bowl provided with an arrangement for urine separation.
  • the faeces is dropped onto a compost heap and the urine is diverted to a matting or the like of inactive material.
  • the matting of inactive material is arranged on an inclined plane and the final product in the form of broken down urine is led to a pipe.
  • This arrangement does not provide for any increase in capacity in respect of breakdown of faeces since all the faeces is collected in a single heap. In the event of peak loading, there is therefore a risk of overloading of the installation.
  • the main object of the present invention is to make available a composting arrangement with a container which is simple and inexpensive to manufacture and whose full capacity can be utilized to a large extent, so that it provides a considerably greater capacity than previously known containers of the same size.
  • this is achieved by the fact that the space above the relatively low compost bed, near the lowermost end of the inclined plane in the container, is also used for composting purposes.
  • the special characteristic feature of a composting arrangement of the type mentioned in the first paragraph is that the second inclined plane slopes in the opposite direction to the first one, that the top surface of the container is designed with a second opening for connection to a second toilet bowl or the like, from which material which is to be broken down is supplied to the second inclined plane, that the two inclined planes are each provided with an active starting bed for accelerating the breakdown of the material supplied to each inclined plane, and that the lower edge of the second inclined plane is located above the first inclined plane, so that material which has been broken down or is in the process of being broken down on the second inclined plane can drop onto the material on the first inclined plane and participate in the continued breakdown of this material.
  • a composting arrangement according to the invention can have two toilet bowls connected to one and the same composting container.
  • Night-soil that is to say a mixture of faeces and urine, is in this case supplied separately to two composting heaps under each respective toilet bowl.
  • These heaps are in each case supported by an inclined plane, one of which is located above the other. Both inclined planes are provided with a starting bed and the night-soil is therefore broken down on both planes. After a period of use, material which has been broken down or is in the process of being broken down will drop from the upper plane onto the composting bed on the lower plane and participate in the continued breakdown of this material.
  • first opening in the top surface of the container prefferably located above the highest end of the lower inclined plane, and for the second opening to be located above the highest end of the upper inclined plane.
  • the second inclined plane expediently ends with a transverse edge in order to hold the compost bed in place, which edge is in this case provided with openings for liquid, which runs down and wets the bed lying underneath.
  • the upper inclined plane can be designed with openings for passage of liquid arranged along a large part of its length, for spreading the liquid across the underlying bed.
  • the upper inclined plane it is preferable for the upper inclined plane to extend over at least half of the length of the container, preferably over 2/3 of the length. In this way, if the material dropping has not been completely broken down, it has sufficient time to be broken down before reaching the outlet opening at the lower end of the lower inclined plane.
  • the container is expediently designed in two parts, with a bottom part and a top part, which makes manufacture and transport simpler and less expensive, and makes it easier to install a starting bed and to replace a destroyed compost bed with a new one.
  • the inclined plane can in this case be secured at the transition between these parts.
  • Fig. 1 is a diagrammatic illustration of a composting arrangement modified in accordance with the invention.
  • Fig. 2 is a longitudinal cross section through the arrangement in Fig. 1.
  • the arrangement shown in the drawing comprises a two-part composting container comprising a lower part 1 and an upper part 2. Inserted in the lower part 1 there is, in a conventional manner, an inclined plane 3 which extends over the entire length of the container. Alternatively, the bottom of the container can have an inclination.
  • an opening 5 is arranged in the top surface of the container 'for connection to a toilet bowl or the like.
  • Reference number 16 designates a ventilation channel, which expediently comprises a fan.
  • the degradable material supplied via the opening 5 forms a heap 6 whose height varies depending on the frequency of use.
  • the container In order to cope with peak loads too, the container must be relatively high. The material supplied is broken down with time, and the volume is thereby reduced. This is reflected in a decreasing thickness of the layer of composting material in the direction of the lower end of the inclined plane 3, where the final compost earth is removed.
  • Liquid which is separated off from the material is allowed to pass through a screen arrangement 7 to a collection housing 8, from which it can be conveyed, for example, to one or more tanks 9 arranged under the container 1 , 2 or diverted to a tank located outside the toilet unit, for example via a further composting bed.
  • the present invention proposes that a further inclined plane 10 be arranged above the plane 3 and with an inclination opposite to that of the other one.
  • the plane 10 is arranged with its highest end below a second opening 11 in the top surface of the container part 2, which opening is also intended to be connected to a toilet bowl or the like.
  • the plane 10 is also provided with a starting bed 12 for accelerating the breakdown of the degradable material 13 which is supplied via the opening 11. The material 13 is broken down and reduces in volume while moving towards the lowermost end of the plane 10.
  • the plane 10 is designed with an upright edge 14 along the lower end.
  • the edge is expediently provided with openings 17 to allow separated-off liquid to run down and wet the material lying underneath on the plane 3.
  • the plane 10 can be provided with openings along the greater part of its length in order to spread the liquid over the material on the plane lying underneath.
  • the invention means that the otherwise unused volume in the container, above the outlet end, is used for composting purposes.
  • the arrangement can be adapted to serve two toilets.
  • the plane 10 should be provided with side edges or be connected to the side walls of the container, so that material cannot drop onto the underlying plane from along the edges of the plane 10.
  • An air gap 15 is also formed between the rear part of the plane 10 and the adjacent container wall in order to permit the necessary circulation of air in the container.
  • the plane 10 it is preferable for the plane 10 to extend at least over half the length of the container 1, 2, preferably over about 2/3 of its length.
  • the plane 10 has only been shown diagrammatically.
  • it is expediently secured at the transition between the two parts or, if these are divided by a separately inserted raised part, between this part and one container part.
  • the raised part can also be designed with inner mounting rims for the extra plane.
  • the container parts can be designed with reinforcing corrugations or the like, and these can be used for supporting the extra plane 10.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fertilizers (AREA)
  • Treatment Of Sludge (AREA)

Abstract

L'invention concerne un système de compostage pour matières de vidange et autres substances biodégradables. Le système comprend un récipient (1, 2) comportant un premier plan incliné (3), situé dans la partie basse (1) dudit récipient, qui sert à la collecte des substances à dégrader provenant d'une cuvette de WC ou similaire, reliée à l'ouverture (5) pratiquée dans la surface supérieure du récipient. A l'intérieur du récipient, un deuxième plan incliné (10) est situé au-dessus du premier plan (3); il est incliné dans une direction opposée à celle du premier plan. La surface supérieure du récipient est pourvue d'une deuxième ouverture (11) destinée à être raccordée à une deuxième cuvette de WC ou similaire, les substances à dégrader étant éjectées de cette deuxième cuvette et tombant sur le deuxième plan incliné. Chacun des deux plans inclinés est pourvu d'un lit de dégradation des substances arrivant sur ces plans inclinés. Le bord inférieur du deuxième plan incliné est situé au-dessus du premier plan incliné, de manière à ce que la substance qui a été dégradée ou qui est en train de se dégrader sur le deuxième plan incliné peut tomber sur la substance qui se trouve déjà sur le premier plan incliné et participer ainsi à la dégradation continue de ladite substance.
PCT/SE1999/001038 1998-06-12 1999-06-11 Systeme de compostage pour matieres de vidange et autres substances biodegradables WO1999064373A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48125/99A AU4812599A (en) 1998-06-12 1999-06-11 Composting arrangement for night-soil and other degradable material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9802102-5 1998-06-12
SE9802102A SE513767C2 (sv) 1998-06-12 1998-06-12 Toalettanordning med komposteringsbehållare för latrin

Publications (1)

Publication Number Publication Date
WO1999064373A1 true WO1999064373A1 (fr) 1999-12-16

Family

ID=20411683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/001038 WO1999064373A1 (fr) 1998-06-12 1999-06-11 Systeme de compostage pour matieres de vidange et autres substances biodegradables

Country Status (3)

Country Link
AU (1) AU4812599A (fr)
SE (1) SE513767C2 (fr)
WO (1) WO1999064373A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927985A (en) * 1973-08-07 1975-12-23 Toa Throne Ab Device for preparation of earth improving substances from organic waste
WO1992010444A1 (fr) * 1990-12-10 1992-06-25 Clivus Multrum, Inc. Dispositif et procede de compostage de matieres fecales et de traitement de l'urine
WO1992018442A2 (fr) * 1991-04-18 1992-10-29 Clivus Multrum, Inc. Systeme portatif de traitement des matieres fecales et de l'urine humaines
WO1996006815A1 (fr) * 1994-08-31 1996-03-07 Prodevco (N.Z.) Limited Ameliorations d'un composteur ou associees a celui-ci

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927985A (en) * 1973-08-07 1975-12-23 Toa Throne Ab Device for preparation of earth improving substances from organic waste
WO1992010444A1 (fr) * 1990-12-10 1992-06-25 Clivus Multrum, Inc. Dispositif et procede de compostage de matieres fecales et de traitement de l'urine
WO1992018442A2 (fr) * 1991-04-18 1992-10-29 Clivus Multrum, Inc. Systeme portatif de traitement des matieres fecales et de l'urine humaines
WO1996006815A1 (fr) * 1994-08-31 1996-03-07 Prodevco (N.Z.) Limited Ameliorations d'un composteur ou associees a celui-ci

Also Published As

Publication number Publication date
AU4812599A (en) 1999-12-30
SE9802102D0 (sv) 1998-06-12
SE513767C2 (sv) 2000-10-30
SE9802102L (sv) 1999-12-13

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