WO2007147225A2 - Amélioration d'un biodigesteur anaérobie utilisé pour le captage d'un biogaz - Google Patents

Amélioration d'un biodigesteur anaérobie utilisé pour le captage d'un biogaz Download PDF

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Publication number
WO2007147225A2
WO2007147225A2 PCT/BR2007/000163 BR2007000163W WO2007147225A2 WO 2007147225 A2 WO2007147225 A2 WO 2007147225A2 BR 2007000163 W BR2007000163 W BR 2007000163W WO 2007147225 A2 WO2007147225 A2 WO 2007147225A2
Authority
WO
WIPO (PCT)
Prior art keywords
blanket
biodigester
biogas
utilized
lake
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.)
Ceased
Application number
PCT/BR2007/000163
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English (en)
Other versions
WO2007147225A3 (fr
Inventor
Takeshi Honda
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.)
Sansuy S/A Industria de Plasticos
Original Assignee
Sansuy S/A Industria de Plasticos
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 Sansuy S/A Industria de Plasticos filed Critical Sansuy S/A Industria de Plasticos
Publication of WO2007147225A2 publication Critical patent/WO2007147225A2/fr
Anticipated expiration legal-status Critical
Publication of WO2007147225A3 publication Critical patent/WO2007147225A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/36—Means for collection or storage of gas; Gas holders
    • 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
    • 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
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • 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
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/26—Constructional details, e.g. recesses, hinges flexible
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • this Invention refers to technical and functional improvement on a particular type of biodigester totally built with plastic blankets, preferably any color of flexible PVC acquired through calendering process.
  • these blankets make up the biodigester's two main parts, the first one is a reservoir or lake for organic matter collection, whilst the second part, also known as dome, works as an actual chamber to gather the generated gas, so that it can be collected and utilized as energy for different appliances.
  • the anaerobic biodigester is an equipment used to produce biogas, a mixture of gases, mostly methane, produced by bacteria which digest organic matter under anaerobic conditions, i.e., absence of oxygen. Therefore, biodigester is a kind of chemical reactor where the reactions have a biological origin.
  • biodigester is a kind of chemical reactor where the reactions have a biological origin.
  • vegetal production residues such as remains of several cultures, residues from different animals, mostly manure and urine, including those produced by human activity, such as: excrements, urine and domestic waste.
  • Biogas is a source of energy to be employed in different sectors, from domestic to industrial, obviously as a fuel for heating, at the same time as avoiding that this kind of gas is released into the atmosphere, causing great damage to the environment. It can be used as a replacement fuel to natural gas or Liquefied Petroleum Gas (LPG), both extracted from mineral reserves. Biogas can be used for cooking in rural residences close to the production sites (saving other sources of energy, particularly, firewood or LPG). It can also be used on rural production as, for instance, lodge heating for cold sensitive animals, or heating for vegetal production greenhouses. It can also be used for electric power generation through electric generators attached to explosion engines adapted to gas consumption.
  • LPG Liquefied Petroleum Gas
  • the effluent (fluid that leaves the biodigester after the time needed for organic matter digestion by bacteria) has fertilizing properties.
  • the effluent fluid known as biofertilizer
  • the biofertilizer presents chemical elements such as nitrogen, phosphor and potassium in amounts and chemical forms that can be used directly to fertilize vegetal species by fertirrigation.
  • the biofertilizer is 90 - 95 % water (i. e., 5 - 10% dry fraction of the fluid).
  • the amount of nitrogen - depending on its source material - is between 1.5 - 4% nitrogen (N), 1 - 5% phosphor (P2O5) and 0.5 - 3% potassium (K20).
  • biodigester that treats waste from cowshed or pigpen or bovine confinement can be connected to domestic sewage from residences. Although they are used primarily as sources of energy and organic fertilizers for rural producers, biodigesters can also be approached as a system of human waste treatment in small urban communities.
  • Oxygen (02) from the air is lethal for anaerobic bacteria. If there is oxygen in the environment, bacteria will paralyze their metabolism and stop developing. The bacteria that use oxygen produce carbon dioxide (CO2) as final product of their breathing. On the other hand, anaerobic bacteria produce methane. Methane is a chemical energy rich gas and, therefore, can be used as fuel. CO2 is already totally oxidized and cannot be used as fuel. If the biodigester is not hermetically sealed against air intake, there is no biogas production, because the anaerobic bacteria die and the aerobic ones survive. The biogas produced will then be CO2 rich rather than methane rich. Thus, the biodigester must ensure anaerobiosis of the bacteria environment.
  • the main nutrients for microorganisms are carbon, nitrogen and mineral salts.
  • Animal waste including human
  • Vegetal culture remains are carbon rich sources.
  • the mineral salts present on animal waste and vegetal residues are enough for the bacteria mineral nutrition.
  • carbon compounds that supply energy
  • nitrogen compounds that supply nitrogen
  • a biodigester with bovine manure stays an average of thirty to forty days sealed, without oxygen, where the only activity is gas removal. After it is opened, the remaining biomass is removed, which can be used as a natural fertilizer, and new material is added, repeating the process.
  • biodigesters are also classified as small, medium and big in size. This is clearly to meet different project situations, since, small size plants are useful, for example, for small production of animal waste.
  • BR MU 8601519-2 from 06/23/2006 compact device for treatment of animal waste and residuary water
  • BR MU 8502055-9 from 09/27/2005 - constructive disposition on a system for treatment of residuary water
  • BR MU 8403433-5 from 10/25/2004 - modular biodigester for production of biofertilizer biogas and biofood
  • BR PI 0403524-0 from 06/03/2004 - biodigester of interconnected containers
  • BR MU 8400518-1 from 03/30/2004 constructive disposition on biodigester
  • BR MU 8400800-8 from 02/12/2004 - fiberglass based biodigester for production of biofertilizer and biogas
  • BR PI 0202741- 0 from 17/07/2002 - ascending flux biodigester with mud blanket and hydraulic seal for waste treatment
  • BR PI 8604114-2 from 08/20/1986 -
  • biodigesters specially that described in document BR MU 8601519-2 from 06/23/2006 compact device for treatment of animal waste and residuary water, is the type totally made of plastic blankets, preferably flexible PVC in any color, acquired by calendering process.
  • these blankets make up the biodigester's two main parts, the first one is a reservoir or lake for collection of organic matter to be treated, whilst the second part is a cover, also known as dome, which works as an actual chamber to gather the generated gas, so that it can be collected and utilized as energy for different appliances.
  • FIGURE 1 represents an exploded perspective, schematically highlighting the main parts that form the biodigester's body and the place where it is set up;
  • FIGURE 2 shows another schematic perspective, now, of the whole assembled set
  • FIGURE 3 illustrates a cross section perspective showing the different layers that make the set
  • FIGURE 4 is a panoramic view schematically showing the set installed on the floor;
  • FIGURE 5 shows a superior view;
  • FIGURE 6 reproduces a cross section view of the assembled set
  • FIGURES 7 to 12 are schematic enlarged views showing the "A" detail pointed out on figure 6 in different constructive conditions.
  • FIGURE 13 shows a perspective highlighting a peculiarity of the improvement in question, which is the forecast of transparent windows at strategic points of the cover blanket.
  • this Invention is the type built totally with plastic blankets, preferably flexible PVC in any color or another equivalent material, acquired through calendering process or not.
  • plastic blankets preferably flexible PVC in any color or another equivalent material, acquired through calendering process or not.
  • these blankets make up the two main parts of the biodigester, where the first one is the base blanket (1) which forms a reservoir or lake for organic matter collection, whilst the second one is a cover blanket like a dome (2), that works as an actual chamber to gather the generated gas, so that it can be collected and utilized as energy for different appliances.
  • the referred base blanket (1) is outspread totally covering a big cove (3), molding itself against the bottom and side walls, so that it can form a reservoir or lake (4) for collection of organic matter to be processed, and this blanket also outspreads beyond the peripheral limits of the mentioned cove, where it is confined by a anchoring groove (5), better seen on figure 7, where it shows a preferably trapezoidal profile, defined by a first inclined descending side (6), a bottom part (7) and a last inclined ascending side (8), where it ends or where the border of the base blanket that forms the lake is positioned (1), and, in the inside of the referred anchoring groove (5), preferably on its descending side (6), both blankets present overlapping stretches (9), where they are hermetically linked by 10 preferably chemical bonds (10) and, after that, the achoring groove (5), such as figure 8 illustrates, is filled with an appropriate material (11), such as earth, hail or a convenient ersatz, thus finishing the ways of achoring the
  • this improvement is distinguished by the fact that, on the stretch (9) where both blankets overlap, there are means included for corrective or preventive maintenance, which are represented by at least one intermediate blanket (12), preferably made of the same material, such as flexible PVC in any color acquired by calendering process, and this blanket also outspreads through the whole perimeter of the set, where the hight of the mentioned intermediate blanket (12) is preferably something squarely proportional to the extension of the hight of the descending wall (6), and the inferior border of the intermediate blanket (12) is hermetically linked to the base blanket (1) by a preferably chemical bond (13) that precedes the first hermetic bond (10), so that it is preferable to keep an appropriate distance between them (d), forming an access so that, for any reason, such as illustrated by figure 10, the cover blanket (2) may be subject to a section (14), either partial or along its whole perimeter, separating itself from the base blanket (1), for total replacement or repair, as well as the new cover blanket (2), as illustrated on figure 11, is directly hermetically
  • the inventions also aims at transparent windows (17) at several strategic points at the cover blanket (2) so that it can be possible to view the whole inside part of the lake for defining eventual maintenances, specially cleaning floatsam and jetsam. As it is understandable, after what was exposed and illustrated, this really is an isolated improvement liable to be applied to different biodigesters built with a base blanket (1) and a cover blanket (2).
  • This improvement comprises “means of wait” that facilitates eventual maintenance, whether corrective or preventive, by means of total or partial replacement of the cover blanket (2).
  • These means or resources represented by the intermediate blanket (12) do not exist on prior patent requests, thereafter, the advantages given by this improvement are not found on the previous technique.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Genetics & Genomics (AREA)
  • Biochemistry (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Clinical Laboratory Science (AREA)
  • Molecular Biology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • External Artificial Organs (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Catching Or Destruction (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne l'amélioration d'un biodigesteur anaérobie utilisé pour le captage d'un biogaz, lequel biodigesteur est entièrement construit avec des couches en matière plastique et comporte : une couche de base (1) qui forme un réservoir ou un bassin (4) pour la collecte de la matière organique, et un couvercle en forme de dôme (2) qui fonctionne en tant que véritable chambre pour recueillir le gaz généré, de telle sorte que le gaz peut être recueilli et utilisé comme combustible pour différents appareils; la couche de base mentionnée (1) est déployée, recouvrant totalement une grande cuvette (3), se moulant contre les parois latérales et le fond, de telle sorte qu'elle peut former un réservoir ou bassin (4) pour la collecte de la matière organique à traiter; cette couche se déploie également au-delà des limites périphériques de la cuvette mentionnée. Elle est confinée par une rainure d'ancrage (5) ayant un profil de préférence trapézoïdal. Les deux couches se chevauchent (9) et sont liées (10). Sont également compris des moyens pour une maintenance corrective ou préventive, représentés par au moins une couche intermédiaire (12).
PCT/BR2007/000163 2006-06-23 2007-06-22 Amélioration d'un biodigesteur anaérobie utilisé pour le captage d'un biogaz Ceased WO2007147225A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRMU8601519 2006-06-23
BRBRMU8601519-2 2006-06-23

Publications (2)

Publication Number Publication Date
WO2007147225A2 true WO2007147225A2 (fr) 2007-12-27
WO2007147225A3 WO2007147225A3 (fr) 2009-06-04

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Application Number Title Priority Date Filing Date
PCT/BR2007/000163 Ceased WO2007147225A2 (fr) 2006-06-23 2007-06-22 Amélioration d'un biodigesteur anaérobie utilisé pour le captage d'un biogaz

Country Status (3)

Country Link
AR (1) AR061576A4 (fr)
PE (1) PE20081221Z (fr)
WO (1) WO2007147225A2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD211384A1 (de) * 1982-10-29 1984-07-11 Bauakademie Ddr Anordnung bei einer schwimmdecke fuer fluessigkeitsbehaelter anordnung bei einer schwimmdecke fuer fluessigkeitsbehaelter
US4668388A (en) * 1983-11-25 1987-05-26 Texaco Inc. High rate sludge reactor
US4672691B1 (en) * 1985-12-06 2000-09-12 Adi Group Inc Bulk volume fermenter

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AR061576A4 (es) 2008-09-03
PE20081221Z (es) 2008-09-02
WO2007147225A3 (fr) 2009-06-04

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