WO2002090270A1 - Bioreacteur destine a l'oxydation du fe (ii) en fe (iii) - Google Patents

Bioreacteur destine a l'oxydation du fe (ii) en fe (iii) Download PDF

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Publication number
WO2002090270A1
WO2002090270A1 PCT/ES2002/000215 ES0200215W WO02090270A1 WO 2002090270 A1 WO2002090270 A1 WO 2002090270A1 ES 0200215 W ES0200215 W ES 0200215W WO 02090270 A1 WO02090270 A1 WO 02090270A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxidation
lll
biological reactor
reactor
internal structure
Prior art date
Application number
PCT/ES2002/000215
Other languages
English (en)
Spanish (es)
Inventor
Domingo Cantero
Manuel Francisco Macias
Maria Del Mar Mesa
José Antonio ANDRADES
Original Assignee
Universidad De Cadiz
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
Priority claimed from ES200101053A external-priority patent/ES2180428B1/es
Application filed by Universidad De Cadiz filed Critical Universidad De Cadiz
Publication of WO2002090270A1 publication Critical patent/WO2002090270A1/fr

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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/346—Iron bacteria
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • 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
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/101—Arranged-type packing, e.g. stacks, arrays
    • 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
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
    • 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
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • 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
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the invention relates to a biological reactor for the oxidation of Fe (ll) to Fe (lll), for insertion into a process for removing hydrogen sulfide (H 2 S) present in the gas streams, in particular of biogas
  • a biological reactor for the oxidation of Fe (ll) to Fe (lll)
  • H 2 S hydrogen sulfide
  • the gas is washed with an aqueous washing liquid (ferric sulfate) and the spent liquid (ferrous sulfate) is treated in the biological reactor to recover the washing liquid and can be reused.
  • biogas which can be energized by its methane content, which gives it a PCS in volume at 5,250 kcal / Nm 3
  • a harmful compound such as hydrogen sulfide (H 2 S) is frequently present, which is formed in the reduction of sulfates by anaerobic bacteria.
  • H 2 S hydrogen sulfide
  • the sulfates present in anaerobic digesters come, mainly, from those existing in the supply of drinking water, industrial discharges and the decomposition of organic compounds containing sulfur, such as proteins and urine [1] [3] [3. Andrades, JA, Campos, E., Mac ⁇ as, M., Cantero, D., (1999) Water Technology, 193, 71-86].
  • the process for eliminating H 2 S contacts in a absorber a solution of ferric sulfate with the biogas containing H 2 S.
  • the solution absorbs the H 2 S oxidizing it to elemental sulfur, which is periodically removed from the medium through a separation operation.
  • the process can be represented by the following chemical reaction:
  • ferric sulfate is regenerated according to the following equation:
  • the biological stage minimizes the consumption of oxidizing reagent in the absorber.
  • the design of the biological reactor is therefore basic in the economic viability of the process.
  • the reactors currently on the market are not designed for installation in plants where investments and, above all, operating costs must be minimal, such as the WWTP and EDAI, MSW biomethanization plants and landfills.
  • the present invention object of a patent, biological reactor for the oxidation of Fe (ll) to Fe (lll), by means of iron oxidizing bacteria immobilized in solid support of the polyurethane foam type consists in the design of a low maintenance and low reactor cost, which allows to place, in independent cells, a set of support units on which the microorganism is immobilized.
  • the reactor consists of a cylindrical tank, with a lower inlet for the feed and an upper outlet for the effluent. Inside the tank, and supported by the bottom of the tank, are a set of elements that constitute the reactor core. In it, there are the air diffusers, the temperature control coil and the guide rods for the cylinders with the different support units. The whole assembly can be removed from the tank and is attached to it, by a closing piece. Said piece has the mission of maintaining the set of supports within the liquid under reaction.
  • the support units consist of small pieces of polyurethane foam with a volume between 4 and 8 cm 3 . These units are introduced in cylinders formed by a grid grid of 1 cm side, divided into compartments to avoid compression of the support units.
  • the biological reactor performs oxidation effectively, and has the following advantages:
  • the adopted design allows the colonization of the supports by the microorganism in the same reactor. In the same way it is possible to extract one or several of the cylinders with the support to replace the foam units when necessary, or serve as inoculum to other reactors.
  • the biological reactor according to the invention is therefore not limited to a biogas treatment process. It can also be used in procedures to treat combustion gases and ventilation air.
  • the biological reactor according to the invention is not limited to a biogas treatment process, but can be used in any process where the use of ferric sulfate is necessary.
  • the biological reactor is physically described below:
  • the reaction vessel is a cylindrical vessel that rests on a flat base. In the upper and lower part there are two conduits for the coupling of the supply and effluent pipes. On the upper edge of the tank are the fastener that fixes the tank cover. It is prepared to be equipped with instruments for temperature and level control, pH determination, etc.
  • the cylindrical tubes are constructed in mesh.
  • the internal structure of the reactor is supported by a central tube on which the structure of the guides of the support cylinders, the aeration system and the thermostat system are coupled. Inside the central tube are the air and water pipes for aeration and thermostatting respectively.
  • Aeration system The aeration system consists of an air duct in the central tube and EPDM polyurethane and elastic rubber base diffusers, placed at the base of the internal structure, which provide a suitable bubble size for the aeration needs of the reactor.
  • the internal structure of the reactor is fixed to the tank by means of a cover that has profiles for fastening at the edge of the tank.
  • the lid has a series of holes for the air outlet
  • FIG. 1 An overview of the tank and the internal structure of the reactor suspended thereon is offered. You can see all the cylinders containing the support units and the air diffusers at the bottom.
  • FIG. 1 A top view of the reactor appears once the internal structure has been introduced therein and closed with the lid.
  • the purpose of the reactor cover is to prevent the movement of the cylinders with the support and avoid that, due to the buoyancy of the foam, in the initial phases of start-up, it leaves the reactor.
  • the lifting hook of the internal structure and the entry of air and water in the central tube are also appreciated.
  • FIG. 3 A detail of the lower part of the internal structure of the reactor can be seen.
  • the guide rods of the cylinders are distinguished, as well as any of these. Air diffusers are also appreciated.
  • Figure 5 Plant aeration system.
  • Figure 6 Plan of the support grid of the cylinder guides.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Microbiology (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Sustainable Development (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

L'invention concerne un bioréacteur destiné à l'oxydation du Fe (II) en Fe (III). Ce bioréacteur est constitué d'une enceinte cylindrique comprenant une entrée inférieure destinée à l'alimentation et une sortie supérieure destinée à l'effluent. Cette enceinte renferme une structure interne formée par une série de tubes cylindriques à mailles reliés par des tiges de guidage, dans lesquels on insère des unités indépendantes de mousse polyuréthane (ou de tout autre polymère élastomère), où sont immobilisés les microorganismes. Cette structure interne est assujettie à l'enceinte par un couvercle, mais peut être extraite de l'enceinte. Grâce à sa conception, cette structure peut être manipulée indépendamment des tubes cylindrique lors de sa colonisation, de sa réparation, etc. Le bioréacteur comprend également des éléments d'aération et de thermostatisation. Le bioréacteur peut être utilisé dans un procédé d'élimination du sulfure d'hydrogène (H2S) présent dans des flux de biogaz. Dans ce procédé, le gaz est lavé au sulfate ferrique, le H2S étant oxydé en soufre élémentaire et le produit obtenu étant du sulfate ferreux. Pour récupérer le sulfate ferrique à partir du sulfate ferreux, on utilise le bioréacteur dans lequel sont immobilisés des microorganismes oxydant le fer, tels que Thiobacillus ferrooxidans.
PCT/ES2002/000215 2001-05-08 2002-05-07 Bioreacteur destine a l'oxydation du fe (ii) en fe (iii) WO2002090270A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESP200101053 2001-05-08
ES200101053A ES2180428B1 (es) 2001-05-08 2001-05-08 Reactor biologico para la oxidacion de fe(ii) a fe(iii).
ES200200965 2002-04-25
ESP200200965 2002-04-25

Publications (1)

Publication Number Publication Date
WO2002090270A1 true WO2002090270A1 (fr) 2002-11-14

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ID=26156226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2002/000215 WO2002090270A1 (fr) 2001-05-08 2002-05-07 Bioreacteur destine a l'oxydation du fe (ii) en fe (iii)

Country Status (1)

Country Link
WO (1) WO2002090270A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856051A1 (fr) 2003-06-11 2004-12-17 Inertec Procede de synthese de ferrates
WO2010060165A1 (fr) * 2008-11-03 2010-06-03 Moacir Rodrigues Procédé et appareil de filtration de biogaz
WO2012032285A1 (fr) * 2010-09-06 2012-03-15 Ch4E Limited Digesteur
FR3115033A1 (fr) * 2020-10-14 2022-04-15 Orano Mining Ponton pour bassin de traitement d’effluents

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522241A1 (de) * 1985-06-21 1987-01-08 Grabowski Tropfkoerper Technik Fuellkoerper aus kunststoff
EP0280750A1 (fr) * 1987-03-03 1988-09-07 Dowa Mining Co., Ltd. Procédé et dispositif pour traiter des gaz contenant du H2S
DE4118927A1 (de) * 1991-06-08 1992-12-10 Mesroc Gmbh Festbettreaktor zur biologischen behandlung von abwaessern
DE19512965A1 (de) * 1995-04-10 1996-10-17 Knedel Erhard Bioreaktor zur biologischen Behandlung belasteter Abwässer
US5897771A (en) * 1994-09-14 1999-04-27 Able Co., Ltd. Apparatus for aerobic treatment of waste water
ES2129351A1 (es) * 1997-02-07 1999-06-01 Univ Cadiz Sistema automatizado para la eliminacion del sulfhidrido del biogas prducido en plantas de aguas residuales, con recuperacion biologica del reactivo.
EP1078886A2 (fr) * 1999-08-20 2001-02-28 NORDDEUTSCHE SEEKABELWERKE GMBH & CO. KG Lit fixe pour la purification biologique de l'eau usée et procédé d'inspection dudit lit fixe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522241A1 (de) * 1985-06-21 1987-01-08 Grabowski Tropfkoerper Technik Fuellkoerper aus kunststoff
EP0280750A1 (fr) * 1987-03-03 1988-09-07 Dowa Mining Co., Ltd. Procédé et dispositif pour traiter des gaz contenant du H2S
DE4118927A1 (de) * 1991-06-08 1992-12-10 Mesroc Gmbh Festbettreaktor zur biologischen behandlung von abwaessern
US5897771A (en) * 1994-09-14 1999-04-27 Able Co., Ltd. Apparatus for aerobic treatment of waste water
DE19512965A1 (de) * 1995-04-10 1996-10-17 Knedel Erhard Bioreaktor zur biologischen Behandlung belasteter Abwässer
ES2129351A1 (es) * 1997-02-07 1999-06-01 Univ Cadiz Sistema automatizado para la eliminacion del sulfhidrido del biogas prducido en plantas de aguas residuales, con recuperacion biologica del reactivo.
EP1078886A2 (fr) * 1999-08-20 2001-02-28 NORDDEUTSCHE SEEKABELWERKE GMBH & CO. KG Lit fixe pour la purification biologique de l'eau usée et procédé d'inspection dudit lit fixe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856051A1 (fr) 2003-06-11 2004-12-17 Inertec Procede de synthese de ferrates
WO2010060165A1 (fr) * 2008-11-03 2010-06-03 Moacir Rodrigues Procédé et appareil de filtration de biogaz
WO2012032285A1 (fr) * 2010-09-06 2012-03-15 Ch4E Limited Digesteur
CN103108949A (zh) * 2010-09-06 2013-05-15 Ch4E有限公司 消化器
GB2496544A (en) * 2010-09-06 2013-05-15 Ch4E Ltd Digester
FR3115033A1 (fr) * 2020-10-14 2022-04-15 Orano Mining Ponton pour bassin de traitement d’effluents

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