WO2006001689A1 - Energy-saving combination - Google Patents

Energy-saving combination Download PDF

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Publication number
WO2006001689A1
WO2006001689A1 PCT/NL2005/000413 NL2005000413W WO2006001689A1 WO 2006001689 A1 WO2006001689 A1 WO 2006001689A1 NL 2005000413 W NL2005000413 W NL 2005000413W WO 2006001689 A1 WO2006001689 A1 WO 2006001689A1
Authority
WO
WIPO (PCT)
Prior art keywords
fermentor
flow
combination
waste
water
Prior art date
Application number
PCT/NL2005/000413
Other languages
French (fr)
Inventor
Eleonoor Van Andel
Gatze Lettinga
Original Assignee
Fiwihex B.V.
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 Fiwihex B.V. filed Critical Fiwihex B.V.
Priority to EP20050752020 priority Critical patent/EP1758445A1/en
Publication of WO2006001689A1 publication Critical patent/WO2006001689A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/18Greenhouses for treating plants with carbon dioxide or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the invention relates to an energy-saving combination. It is for the good of the environment to make very sparing use of energy and to limit the emission of harmful substances . It is particularly important to limit the emission of carbon dioxide gas and thus prevent further intensification of the greenhouse effect on earth.
  • Known measures for saving energy and reducing CO 2 emission are for instance the reduction in processes that are very wasteful of energy and the reuse of already produced material .
  • the use of means of transport which emit less carbon dioxide is also being stimulated as alternative to means of transport which do have a high CO 2 emission. In the case of houses the use of durable materials and insulation of houses is stimulated.
  • the use of energy-saving appliances is one of a series of measures aimed at decreasing CO 2 emission and reducing the consumption of energy.
  • US-A-5 527 464 describes a combination wherein waste from a community is taken to a waste fermentor.
  • the carbon dioxide and the water from the waste fermentor are supplied to, among others, an open horticulture greenhouse.
  • the gas from the fermentor can be used to generate energy. It is now an object of the invention to provide an energy-saving combination which contributes " " toward the above stated objectives.
  • a combination according to the invention comprising: - at least one house with an outgoing fermentable waste flow and an outgoing waste water flow, - at least one anaerobic waste fermentor with an ingoing waste flow and an outgoing fermentor gas flow; and - at least one closed horticulture greenhouse, wherein the fermentable waste flow runs out into the anaerobic waste fermentor, the waste water flow and at least the carbon dioxide part of the fermentor gas flow runs out into the closed greenhouse, wherein condensed water and/or a heat flow from the closed greenhouse is supplied to the at least one house.
  • the fermentable waste flow from a house is usually removed via the domestic refuse to a central tip or incineration furnace.
  • vegetables, fruit and garden waste are separated from the other domestic waste and processed separately at a central location.
  • Water from shower and bath, water from the kitchen and water from the toilets is. normally carried via one sewage system to a central water treatment plant.
  • a house is understood to mean any building in which people and/or animals reside on regular basis, such as care centres, offices, shops, livestock accommodation etc. With the combination according to the invention these different waste flows are reused for the benefit of the at least one house.
  • the fermentable waste flow such as for instance vegetables, fruit and garden waste and the water from the toilets is fed to a waste fermentor, which produces an increased CO 2 content which is then " in turn converted by the greenhouse, and in particular the crops cultivated therein.
  • a preferred embodiment of the combination according to the invention comprises a gas turbine, gas motor or a high temperature fuel cell, which is placed in the fermentor gas flow and converts at least the combustible part of the fermentor gas flow into water vapour and carbon dioxide.
  • the anaerobic waste fermentor also produces combustible gases, in particular methane.
  • the combination according to the invention thus ensures that electric current is generated from the waste flow produced by the at least one house, which current can be reused by the at least one house.
  • a high temperature fuel cell such as a melted carbonate, or solid oxide fuel cell, has the additional advantage of a higher efficiency and cleaner gas emissions .
  • the heat generated by the gas turbine or gas motor is supplied to the greenhouse and/or the fermentor and/or the at least one house.
  • Another preferred embodiment of the combination according to the invention comprises a water-bearing soil layer or basin, wherein a heat flow from the greenhouse is supplied to the water-bearing soil layer. During the summer or during the day excess heat from the greenhouse can be supplied to the water-bearing soil layer, while in the winter or at night heat from this water-bearing soil layer or basin can be fed back for the purpose of heating the greenhouse and/or a house.
  • heat is exchanged between the water-bearing layer and the at least one house.
  • the 1 water-bearing layer which is comparatively cool in the summer, can thus also be used for instance to lower the temperature in the at least one house.
  • cooling means such as for instance a cooling tower, for the purpose of cooling the water-bearing layer.
  • a photovoltaic layer is arranged at least partially on the at least one house for generating electricity from light. The thus generated electricity can be used during daylight to drive the different installations and to provide the houses with electricity. In addition, the electricity can optionally be stored for use during the night.
  • This combination preferably further comprises a device for generating hydrogen using the photovoltaic electricity.
  • This hydrogen can be readily formed from for instance the condensed water. This hydrogen can in turn then be used to provide energy. The hydrogen can for instance be used to propel a vehicle. It is further also recommended here to supply the hydrogen to the fermentor in order to convert the hydrogen ⁇ into methane.
  • the bacteria used will easily convert the hydrogen, in combination with CO 2 , into methane.
  • the advantage of methane is that it is more readily compressible and can thus be used more easily for vehicles or for storage in order to generate electricity again during the night.
  • This fermentor 3 is an anaerobic fermentor which emits a fermentor gas flow 4 as a result of the anaerobic fermenting process .
  • This fermentor gas 4 contains, among others, CO 2 and methane gas.
  • the fermentor gas is fed to a turbine 5 or a gas motor which here converts the combustible part of the gas flow into electricity 6, heat 7 and CO 2 .
  • the heat flow 7 is fed back again to fermentor 3 to thus hold this latter at the correct operating temperature.
  • the gas 8 burned by turbine 5 or the gas motor which now consists mainly of CO 2 and water, is fed to a cooler 9.
  • the water in gas flow 8 is here condensed, and is then fed via flow 10 to a greenhouse 11.
  • Waste water 12 from house 1 is used to irrigate the crop.
  • This waste water 12 consists substantially of bath and shower water.
  • the crop grows under the influence of sunlight 13 incident upon the greenhouse 11.
  • Excess heat 14 can be supplied from greenhouse 11 to a water-bearing soil layer 15 which can function as buffer for heat.
  • the heat stored in this water layer can subsequently be supplied vie a heat flow 16 to greenhouse 11, in the case the outside temperature is low, and fed back again via a heat flow 17 to houses 1.
  • Condensed water from greenhouse 11 can further be supplied via flow 18 to the at least one house 1.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Greenhouses (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The invention relates to a combination, comprising: at least one house with an outgoing fermentable waste flow and an outgoing waste water flow, at least one anaerobic waste fermentor with an ingoing waste flow and an outgoing fermentor gas flow; and at least one closed horticulture greenhouse, wherein the fermentable waste flow runs out into the anaerobic waste fermentor, the waste water flow and at least the carbon dioxide part of the fermentor gas flow runs out into the closed greenhouse, wherein condensed water and a heat flow from the closed greenhouse is supplied to the at least one house.

Description

ENERGY-SAVING COMBINATION
The invention relates to an energy-saving combination. It is for the good of the environment to make very sparing use of energy and to limit the emission of harmful substances . It is particularly important to limit the emission of carbon dioxide gas and thus prevent further intensification of the greenhouse effect on earth. Known measures for saving energy and reducing CO2 emission are for instance the reduction in processes that are very wasteful of energy and the reuse of already produced material . The use of means of transport which emit less carbon dioxide is also being stimulated as alternative to means of transport which do have a high CO2 emission. In the case of houses the use of durable materials and insulation of houses is stimulated. The use of energy-saving appliances is one of a series of measures aimed at decreasing CO2 emission and reducing the consumption of energy. US-A-5 527 464 describes a combination wherein waste from a community is taken to a waste fermentor. The carbon dioxide and the water from the waste fermentor are supplied to, among others, an open horticulture greenhouse. The gas from the fermentor can be used to generate energy. It is now an object of the invention to provide an energy-saving combination which contributes" "toward the above stated objectives. This is achieved with a combination according to the invention, comprising: - at least one house with an outgoing fermentable waste flow and an outgoing waste water flow, - at least one anaerobic waste fermentor with an ingoing waste flow and an outgoing fermentor gas flow; and - at least one closed horticulture greenhouse, wherein the fermentable waste flow runs out into the anaerobic waste fermentor, the waste water flow and at least the carbon dioxide part of the fermentor gas flow runs out into the closed greenhouse, wherein condensed water and/or a heat flow from the closed greenhouse is supplied to the at least one house. The fermentable waste flow from a house is usually removed via the domestic refuse to a central tip or incineration furnace. In some cases vegetables, fruit and garden waste are separated from the other domestic waste and processed separately at a central location. Water from shower and bath, water from the kitchen and water from the toilets is. normally carried via one sewage system to a central water treatment plant. In the context of the invention a house is understood to mean any building in which people and/or animals reside on regular basis, such as care centres, offices, shops, livestock accommodation etc. With the combination according to the invention these different waste flows are reused for the benefit of the at least one house. The fermentable waste flow, such as for instance vegetables, fruit and garden waste and the water from the toilets is fed to a waste fermentor, which produces an increased CO2 content which is then"in turn converted by the greenhouse, and in particular the crops cultivated therein. The plants evaporate much water in their metabolism which, after cooling, can be fed as condensed water again to the at least one house. The crops can in turn then be consumed by the residents of the houses. The waste water flow, which is also referred to as grey water flow and which is little-contaminated water, such as for instance from shower and bath, can then be used to irrigate the crops in the greenhouse. A preferred embodiment of the combination according to the invention comprises a gas turbine, gas motor or a high temperature fuel cell, which is placed in the fermentor gas flow and converts at least the combustible part of the fermentor gas flow into water vapour and carbon dioxide. In addition to carbon dioxide, the anaerobic waste fermentor also produces combustible gases, in particular methane. By now burning this combustible part of the fermentor gas flow, energy is created which in a preferred embodiment can be converted into electric power and can be supplied to the greenhouse and/or the at least one house. The combination according to the invention thus ensures that electric current is generated from the waste flow produced by the at least one house, which current can be reused by the at least one house. The use of a high temperature fuel cell, such as a melted carbonate, or solid oxide fuel cell, has the additional advantage of a higher efficiency and cleaner gas emissions . In yet another embodiment of the combination according to the invention, the heat generated by the gas turbine or gas motor is supplied to the greenhouse and/or the fermentor and/or the at least one house. When the combustible part of the fermentor gas flow is burned, much heat is created which can be used to hold the greenhouse at a temperature which enhances the growth of the crops or to hold the fermentor at the desired temperature so that the anaerobic conversion is maximized. The heat can also be used to heat the houses or provide them with hot tap-water. Another preferred embodiment of the combination according to the invention comprises a water-bearing soil layer or basin, wherein a heat flow from the greenhouse is supplied to the water-bearing soil layer. During the summer or during the day excess heat from the greenhouse can be supplied to the water-bearing soil layer, while in the winter or at night heat from this water-bearing soil layer or basin can be fed back for the purpose of heating the greenhouse and/or a house. In another embodiment, heat is exchanged between the water-bearing layer and the at least one house. The1 water-bearing layer, which is comparatively cool in the summer, can thus also be used for instance to lower the temperature in the at least one house. Yet another embodiment of the combination according to the invention comprises cooling means, such as for instance a cooling tower, for the purpose of cooling the water-bearing layer. In a preferred embodiment, a photovoltaic layer is arranged at least partially on the at least one house for generating electricity from light. The thus generated electricity can be used during daylight to drive the different installations and to provide the houses with electricity. In addition, the electricity can optionally be stored for use during the night. This combination preferably further comprises a device for generating hydrogen using the photovoltaic electricity. This hydrogen can be readily formed from for instance the condensed water. This hydrogen can in turn then be used to provide energy. The hydrogen can for instance be used to propel a vehicle. It is further also recommended here to supply the hydrogen to the fermentor in order to convert the hydrogen ■into methane. The bacteria used will easily convert the hydrogen, in combination with CO2, into methane. The advantage of methane is that it is more readily compressible and can thus be used more easily for vehicles or for storage in order to generate electricity again during the night. These and other features of the invention are further elucidated on the basis of the accompanying schematic diagram. The figure shows an exemplary embodiment of a combination according to the invention. The combination comprises at least one house 1 which discharges a fermentable waste flow 2 to a fermentor 3. This fermentor 3 is an anaerobic fermentor which emits a fermentor gas flow 4 as a result of the anaerobic fermenting process . This fermentor gas 4 contains, among others, CO2 and methane gas. The fermentor gas is fed to a turbine 5 or a gas motor which here converts the combustible part of the gas flow into electricity 6, heat 7 and CO2. The heat flow 7 is fed back again to fermentor 3 to thus hold this latter at the correct operating temperature. The gas 8 burned by turbine 5 or the gas motor, which now consists mainly of CO2 and water, is fed to a cooler 9. The water in gas flow 8 is here condensed, and is then fed via flow 10 to a greenhouse 11. Being cultivated in the greenhouse is a crop which is stimulated to grow by means of an additional supply 10 of CO2. Waste water 12 from house 1 is used to irrigate the crop. This waste water 12 consists substantially of bath and shower water. The crop grows under the influence of sunlight 13 incident upon the greenhouse 11. Excess heat 14 can be supplied from greenhouse 11 to a water-bearing soil layer 15 which can function as buffer for heat. The heat stored in this water layer can subsequently be supplied vie a heat flow 16 to greenhouse 11, in the case the outside temperature is low, and fed back again via a heat flow 17 to houses 1. Condensed water from greenhouse 11 can further be supplied via flow 18 to the at least one house 1.

Claims

1. Combination, comprising: - at least one house with an outgoing fermentable waste flow and an outgoing waste water flow, - at least one anaerobic waste fermentor with an ingoing waste flow and an outgoing fermentor gas flow; and - at least one closed horticulture greenhouse, wherein the fermentable waste flow runs out into the anaerobic waste fermentor, the waste water flow and at least the carbon dioxide part of the fermentor gas flow runs out into the closed greenhouse, wherein condensed water and/or a heat flow from the closed greenhouse is supplied to the at least one house.
2. Combination as claimed in claim 1, comprising a gas motor, gas turbine or a high temperature fuel cell, which is placed in the fermentor gas flow and converts at least the combustible part of the fermentor gas flow into substantially water and carbon dioxide.
3. Combination as claimed in claim 2, wherein the gas turbine generates electric current, which current is supplied to the greenhouse and/or the at least one. house and/or the fermentor.
4. Combination as claimed in either of the foregoing claims 2 or 3, comprising a cooler for cooling fermentor gas flow flowing out of the gas turbine, wherein heat from the cooler is supplied to the greenhouse and/or the at least one house and/or the fermentor.
5. Combination as claimed in any of the foregoing claims, wherein heat generated by the gas turbine is supplied to the greenhouse and/or the fermentor and/or the at least one house.
6. Combination as claimed in any of the foregoing claims, comprising a water-bearing soil layer, wherein the heat flow from the greenhouse is supplied to the water¬ bearing soil layer.
7. Combination as claimed in claim 6, wherein heat is exchanged between the water-bearing layer and the at least one house.
8. Combination as claimed in claim 7, comprising cooling means, such as a cooling tower, for the purpose of cooling the water-bearing layer.
9. Combination as claimed in any of the foregoing claims, wherein a photovoltaic layer is arranged at least partially on the at least one house for generating electricity from light.
10. Combination as claimed in claim 9, comprising a device for generating hydrogen using the photovoltaic electricity.
11. Combination as claimed in claim 10, wherein the hydrogen is supplied to the fermentor in order to convert the hydrogen into methane.
PCT/NL2005/000413 2004-06-23 2005-06-08 Energy-saving combination WO2006001689A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20050752020 EP1758445A1 (en) 2004-06-23 2005-06-08 Energy-saving combination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1026484 2004-06-23
NL1026484A NL1026484C2 (en) 2004-06-23 2004-06-23 Energy-efficient combination.

Publications (1)

Publication Number Publication Date
WO2006001689A1 true WO2006001689A1 (en) 2006-01-05

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ID=34969775

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Application Number Title Priority Date Filing Date
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EP (1) EP1758445A1 (en)
NL (1) NL1026484C2 (en)
WO (1) WO2006001689A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012080348A1 (en) * 2010-12-14 2012-06-21 Axpo Kompogas Ag Method for treating vegetable, fruit and garden waste
JP2015015966A (en) * 2014-10-27 2015-01-29 株式会社東信花木 Greenhouse cultivation facility

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577678A (en) * 1969-08-14 1971-05-04 Microphor Inc Combined waste treatment and growth chamber process
US3698881A (en) * 1970-08-05 1972-10-17 Chevron Res Synthesis gas production
US5527464A (en) * 1991-06-24 1996-06-18 Bartha; Istvan Method and system for the treatment and utilization of waste products
US5580457A (en) * 1990-10-23 1996-12-03 Seec, Inc. Waste handling method
WO1998039963A1 (en) * 1997-03-13 1998-09-17 Wijngaart Adriaan Hubertus Joh Symbiosis of sheds and greenhouses
WO2001020976A1 (en) * 1999-09-20 2001-03-29 Wijngaart Adriaan Johannes Hub Waste-water purification in cattle-breeding systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577678A (en) * 1969-08-14 1971-05-04 Microphor Inc Combined waste treatment and growth chamber process
US3698881A (en) * 1970-08-05 1972-10-17 Chevron Res Synthesis gas production
US5580457A (en) * 1990-10-23 1996-12-03 Seec, Inc. Waste handling method
US5527464A (en) * 1991-06-24 1996-06-18 Bartha; Istvan Method and system for the treatment and utilization of waste products
WO1998039963A1 (en) * 1997-03-13 1998-09-17 Wijngaart Adriaan Hubertus Joh Symbiosis of sheds and greenhouses
WO2001020976A1 (en) * 1999-09-20 2001-03-29 Wijngaart Adriaan Johannes Hub Waste-water purification in cattle-breeding systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012080348A1 (en) * 2010-12-14 2012-06-21 Axpo Kompogas Ag Method for treating vegetable, fruit and garden waste
JP2014506224A (en) * 2010-12-14 2014-03-13 アクスポ、コンポガス、アクチェンゲゼルシャフト Methods for treating vegetables, fruits and horticultural waste
JP2015015966A (en) * 2014-10-27 2015-01-29 株式会社東信花木 Greenhouse cultivation facility

Also Published As

Publication number Publication date
EP1758445A1 (en) 2007-03-07
NL1026484C2 (en) 2005-12-28

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