EP3983521A1 - Installation de traitement, notamment pour le traitement par fermentation de déchets organiques - Google Patents
Installation de traitement, notamment pour le traitement par fermentation de déchets organiquesInfo
- Publication number
- EP3983521A1 EP3983521A1 EP20742320.3A EP20742320A EP3983521A1 EP 3983521 A1 EP3983521 A1 EP 3983521A1 EP 20742320 A EP20742320 A EP 20742320A EP 3983521 A1 EP3983521 A1 EP 3983521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reactor
- products
- treated
- treatment
- inlet
- 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.)
- Withdrawn
Links
- 239000010815 organic waste Substances 0.000 title claims abstract description 12
- 238000000855 fermentation Methods 0.000 title claims description 32
- 230000004151 fermentation Effects 0.000 title claims description 26
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 239000007787 solid Substances 0.000 claims abstract description 51
- 239000012530 fluid Substances 0.000 claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 239000000047 product Substances 0.000 claims description 97
- 238000009434 installation Methods 0.000 claims description 47
- 239000012265 solid product Substances 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000002054 inoculum Substances 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000010924 continuous production Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000010806 kitchen waste Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002211 methanization Effects 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- 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
- C12M23/02—Form or structure of the vessel
- C12M23/06—Tubular
-
- 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
- C12M23/48—Holding appliances; Racks; Supports
-
- 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
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/14—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus with filters, sieves or membranes
-
- 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
- Treatment plant in particular for the fermentation treatment of organic waste
- the present invention relates to a treatment plant, in particular for the treatment by fermentation, in particular anaerobic, of at least partially fermentable solid products, in particular of solid organic waste, in particular for the production of biogas.
- Biogas is a combustible gas produced by the fermentation of organic matter in the absence of oxygen.
- a treatment installation comprising a tubular reactor, said tubular reactor being equipped with at least one inlet for supplying products to be treated, a first outlet called the outlet for discharging the treated products and 'a second outlet called the biogas discharge outlet.
- the installation comprises two reactors.
- the first reactor is an inclined reactor which ensures, from the solid waste, a liquid / solid separation by pressing said waste.
- An object of the invention is to provide a treatment plant of the aforementioned type, the design of which allows an almost continuous production of biogas associated with the production of a reduced quantity of digestate without adversely affecting the ease of use of installation and low water consumption.
- the invention relates to a treatment installation, in particular for the treatment by fermentation of at least partially fermentable solid products, in particular of solid organic waste, in particular with a view to the production of biogas, said installation comprising a tubular reactor and a support frame of said tubular reactor, said tubular reactor being equipped with at least one inlet for supplying products to be treated, a first outlet called the outlet for discharging the treated products and a second outlet said biogas discharge outlet, characterized in that the tubular reactor has at least one configuration in which the inlet for supplying the products to be treated from the reactor is arranged at a level higher than the outlet for discharging the treated products from the reactor to form an inclined reactor with a downward slope from the inlet for supplying the products to be treated in the direction of the outlet for discharging the treated products from the reactor, in that the tubular reactor comprises a tubular body and a liquid / solid separator extending
- the liquid / solid separator comprises a duct internally delimiting a reception space for receiving the products to be treated, this duct being a duct delimited by a perforated peripheral side wall, this peripheral side wall perforated being surrounded by said body to provide, between said perforated peripheral side wall and the body, a space for collecting liquid
- the reactor further comprises an inlet orifice capable of communicating with the interior of the duct of the liquid separator / solid and an outlet in fluid communication with the liquid collection space, the inlet port being disposed at a level higher than the outlet port in the configuration in which the reactor is inclined downwardly from the inlet for the supply of products to be treated in the direction of the outlet for discharging the treated products from the reactor, this inlet port being connected to the outlet orifice by a fluid circulation circuit arranged at least partially outside the body of the reactor, this fluid circulation circuit being equipped with at least one system, such as a pump, for forced circulation of fluid from the outlet port to the inlet port.
- tubular reactor so that, in at least one configuration of the tubular reactor, the latter is in the form of an inclined reactor makes it possible to limit the size of the installation while promoting a gravity flow inside said reactor.
- the presence of an inclined tubular reactor housing a liquid / solid separator combined with a circuit for forced circulation of fluid, in particular liquid, from the outlet port to the inlet port of the tubular reactor allows, without human intervention , in parallel with the production of biogas, liquid / solid separation and recirculation of the separated liquid inside the reactor thus allowing, inside the reactor, a regular supply of liquid inoculum or leachate promoting the fermentation of the products solid.
- the reactor is mounted on the support frame in an adjustable manner in inclination to vary the level difference between the inlet for the supply of products to be treated and the outlet
- the reactor is mounted on the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the first side of the reactor
- this pivot connection having a so-called horizontal pivot axis extending transversely to the longitudinal axis of the tubular body of the reactor and to the 'horizontal in the position of said installation on a horizontal flat surface.
- said installation comprises a drive system in pivoting displacement of the reactor relative to the support frame.
- This training system can be manually or motorized.
- said installation comprises a system for supplying products to be treated from the reactor.
- the system for supplying products to be treated comprises one or more perforated storage cassettes for products to be treated which can be positioned in the duct of the liquid / solid separator and can slide in the duct. of the liquid / solid separator.
- cassettes are configured to be disposed, one behind the other, in an aligned state, inside the conduit of the liquid / solid separator. This arrangement allows in parallel with the introduction of a cassette at one end of the conduit of the liquid / solid separator, the output of a cassette at the opposite end of said conduit.
- the product supply system comprises a pusher (19) mounted so as to slide inside the reactor.
- the feed system comprises one or more cassettes
- the or at least one of the cassettes is, in the state positioned in the conduit of the liquid / solid separator, slidably movable in said conduit of the liquid / solid separator. under the action of a thrust exerted by said pusher on said cassette.
- the pusher can act by pushing on products to be treated arranged in bulk inside the conduit of the liquid / solid separator.
- the pusher comprises a piston head having an active thrust surface, this active thrust surface of the piston head being provided with a hollow rod projecting from the active surface of the piston head, this rod provided with perforations over at least part of its length being in fluid communication with the inlet orifice of the fluid circulation circuit in at least one position of the pusher inside of the reactor to form a sprinkler rod.
- the piston head of the pusher is equipped, on the side of the piston head opposite to that providing the active thrust surface of said piston head, with a maneuvering member s 'extending preferably at least partially projecting from the feed inlet of the products to be treated of the reactor to allow a sliding movement of the pusher inside the reactor.
- the piston head is, in the end position of the pusher inside the reactor, disposed between the inlet for supplying products to be treated and the outlet for 'evacuation of the treated products from the reactor and the pusher is a pusher extractable from the reactor by the inlet for feeding the products to be treated from the reactor.
- the fluid circulation circuit connecting the outlet orifice and the inlet orifice of the reactor is equipped with a storage tank.
- a storage reservoir for a volume of liquid called the inoculum at the start of the fermentation process and then as a storage reservoir for the leachate during of the fermentation process.
- the liquefaction of the solid material during the fermentation process allows the continuous production of leachate which is added to the volume of liquid initially introduced.
- This storage tank can be fitted with an emptying device to convert a level of
- the inlet for supplying products to be treated is an axial inlet and the inlet for supplying products to be treated and the outlet for discharging the treated products from the reactor are each equipped with an airtight closure system, and the reactor body and the liquid / solid separator duct are coaxial.
- the body of the reactor is delimited by a double wall and is equipped with heating means.
- FIG. 1 is a sectional view of an installation conforming to
- FIG. 2 is a view of an installation according to the invention
- FIG. 3 shows a sectional view, in exploded position of the constituent elements, of a cassette
- FIG. 4 shows a side view of the cassette of FIG. 3 and
- FIG. 5 is a partial cross-sectional view of the reactor taken at the reactor inlet.
- the treatment installation 1 object of the invention is more particularly intended for the treatment by anaerobic fermentation of solid organic waste, such as urban waste, in particular household kitchen waste, of restaurateurs, market including preparation waste (peels, pulps) up to meal scraps, preferably 50 to 200 tonnes per year.
- solid organic waste such as urban waste, in particular household kitchen waste, of restaurateurs, market including preparation waste (peels, pulps) up to meal scraps, preferably 50 to 200 tonnes per year.
- This installation 1 comprises a tubular reactor 2 and a support frame 15 of said tubular reactor 2.
- This tubular reactor 2 comprises a tubular body 6 and an inlet 3 for supplying the products to be treated, the tubular body 6 is an elongated body which may be of any cross section. In the examples shown, this tubular body 6 is a cylindrical body of circular section.
- the inlet 3 for the supply of products to be treated is a so-called axial inlet
- This reactor 2 also comprises a first outlet 4, called outlet 4
- outlet 5 of biogas evacuation evacuation of the treated products, and a second outlet 5, called outlet 5 of biogas evacuation.
- the outlet 4 for discharging the treated products is an axial outlet disposed at the end of the tubular body 6 opposite to that provided with the inlet 3 for supplying the products to be treated, and the outlet 5 biogas discharge is a side outlet.
- the inlet 3 for supplying products to be treated and the outlet 4 for discharging treated products from the reactor 2 are each equipped with a closing system 27 in an airtight manner.
- Each closing system 27 is, in the examples shown, produced in the form of a pneumatic sleeve valve capable of being inflated to pass from the open position to the closed position.
- the body 6 of the tubular reactor 2 is, over at least part of its
- heating means 29 are, in the examples shown, formed by a hot water circuit, at least part of which is formed by the space left free between the two walls of the double wall of the body 6 of the tubular reactor .
- This heating circuit is supplied with hot fluid from a hot fluid reservoir arranged on the support frame 15.
- This hot fluid reservoir is equipped with heating elements of said fluid such as electrical resistors.
- This tubular reactor 2 has at least one configuration in which the inlet 3 for supplying the products to be treated from the reactor is arranged at a higher level than the outlet 4 for discharging the treated products from the reactor 2, to form a reactor 2 inclined with a downward slope from the inlet 3 for supplying the products to be treated in the direction of the outlet 4 for discharging the treated products from the reactor 2.
- the reactor 2 is mounted on the support frame 15 in an adjustable manner in inclination, via a pivot connection 16 between the support frame 15 and the reactor 2 to vary the difference in level between the inlet 3 for supplying the products to be treated and the outlet 4 for discharging the treated products from said reactor 2, this pivot connection 16 having a so-called horizontal pivot axis extending transversely to the longitudinal axis of the body 6 of the reactor and horizontally in the position of said installation on a horizontal flat surface.
- pivoting around a so-called horizontal pivot axis has a number of advantages. It makes it possible to reduce the size of the reactor, it allows gravity movement inside said reactor and it facilitates the reloading of products to be treated from the reactor.
- the installation may include a system 17 for driving the pivoting displacement of the reactor 2 relative to the support frame 15 with manual or automatic actuation.
- the pivot through which passes the pivot axis of the pivot link 16 between the support frame 15 and the reactor 2 is mounted integral in rotation of a toothed wheel.
- This toothed wheel engages a pinion driven by a crank and carried by the support frame 15.
- the toothed wheel, the pinion and the crank form the drive system 17.
- the tubular reactor 2 further comprises a liquid / solid separator 7
- This liquid / solid separator 7 comprises a duct 8 internally delimiting a reception space for receiving the products to be treated.
- This duct 8 which is in the form of an elongated body open at each of its ends, is a perforated duct delimited by a perforated peripheral side wall 9. In the examples shown, this duct 8 is a cylindrical duct of circular cross section.
- the perforations of the conduit 8 closest to the inlet 3 for the supply of products to the reactor 2 are of larger dimensions than those placed closest to the outlet 4 for the discharge of treated products.
- this dimension of the perforations gradually decreases, from the inlet 3 for supplying products to the outlet 4 for discharging the treated products.
- the body 6 of the reactor 2 and the line 8 of the separator 7 are coaxial, as in the example shown.
- liquid / solid is surrounded by the body 6 of the reactor 2 to provide between the perforated peripheral side wall 9 and the body 6 of the reactor 2 a space 10 for collecting liquid.
- the reactor 2 further comprises an inlet port 11 which can communicate with the interior of the conduit 8 of the liquid / solid separator 7 and an outlet port 12 in fluid communication with the liquid collection space 10.
- the inlet orifice 11 is arranged at a level higher than the outlet orifice 12 in the configuration in which the reactor is inclined downwardly from the inlet 3 for supplying products to be treated in the direction of the outlet 4 for discharging the processed products from the reactor 2.
- This inlet orifice 11 is connected to the outlet orifice 12 by a fluid circulation circuit 13 disposed at least partially, in this case, here, completely outside the body 6 of the reactor 2.
- This fluid circulation circuit 13 is equipped with a system 14, such as a pump, for forced circulation of fluid, from the outlet port 12 to the reactor inlet port 11.
- a system 14 such as a pump, for forced circulation of fluid, from the outlet port 12 to the reactor inlet port 11.
- This fluid circulation circuit 13 is therefore a recirculation circuit which allows the recirculation of the liquid having percolated through the solid products to be treated, also called leachate, and the recirculation of the liquid resulting from the liquefaction of at least one part of the solid products to be treated, this liquefaction resulting from fermentation.
- This fluid circulation circuit 13 is preferably at the level of
- the outlet 12 of the reactor 2 equipped with a filter 30 which makes it possible to retain the undegraded particles liable to clog the fluid circulation circuit 13.
- This fluid circulation circuit 13 connecting the outlet 12 and the reactor inlet port 11 is equipped with a storage tank 26.
- This liquid storage tank 26 can be pre-filled with inoculum when starting up the installation.
- This inoculum can be composed of any liquid digestate coming from a methanization unit located nearby.
- the digestate used as inoculum comes from a site mainly dealing with bio-kitchen waste.
- This storage tank 26 can be equipped with a drain or overflow system to control the filling level of said tank.
- the leachate withdrawn from this storage tank 26 can be upgraded.
- part of the circuit can be made in the form of a bellows duct or a flexible duct.
- the installation 1 can be supplied in bulk with products to be treated, this solution is not preferred. Accordingly, and preferably, the installation 1 comprises a system 18 for supplying the products to be treated to the reactor 2.
- This feeding system 18 can affect a large number of forms.
- the supply system 18 may comprise one or more perforated storage cassettes 20 for products to be treated which can be positioned in the conduit 8 of the liquid / solid separator 7 and which can be slidably displaced in the conduit 8 of the liquid / solid separator 7.
- the cassettes 20 are configured to be arranged one behind the other in the aligned state within the conduit 8 of the liquid / solid separator 7. They then form a line of cassettes, so that a push exerted on the line at one end of the line of cassettes causes the cassettes of the entire line to move.
- liquid / solid separator in parallel with the entry of a cassette through the opposite end of the liquid / solid separator.
- this cover is formed by a mesh
- the products to be treated are, after opening the cover, introduced into the body of the cassette.
- the cassette 20 can, after closing the cover, be introduced into the reactor 2.
- the product supply system 18 comprises a pusher 19 mounted mobile at
- each cassette is, in the state positioned in the pipe of the liquid / solid separator, slidingly displaceable in said pipe of the liquid / solid separator, under the action of 'a thrust exerted by said pusher on said cassette.
- Such pusher could also be present in the case of a bulk feed to the reactor.
- this pusher 19 is an extractable pusher, which can be extracted or introduced into the reactor 2 through the inlet 3 for supplying products to be treated from the reactor 2.
- This pusher 19 comprises a piston head 21.
- This piston head 21 is a piston head 21.
- This pusher piston head 21 is equipped, on the side of the head 21 of the piston opposite to that providing the active thrust surface of said piston head, with a maneuvering member 22 extending at least partially projecting of the inlet 3 for supplying products to be treated from the reactor 2 to allow a sliding movement of the pusher 19 inside the reactor 2 by driving in axial displacement of the member 22 for operating the pusher 19 which is presented here in the form of an elongated body.
- This piston head 21 which slides inside the body 6 of the reactor 2 is in the end position of the pusher 19 inside the reactor 2, arranged between the inlet 3 for supplying products to process and the outlet 4 for discharging the treated products from the reactor 2.
- this piston head 21 extends in the end-of-stroke position at the level of the inlet orifice 11 of the tubular reactor 2, to allow fluid communication between the fluid circulation circuit 13 and the 'inside the separator duct 8.
- the piston head 21 can be provided
- the active thrust surface 23 of the piston head 21 is provided with a hollow rod 24 extending axially projecting from the active surface 23 of the piston head 21.
- This rod 24 provided with perforations 25 over at least part of its length is in fluid communication with the inlet orifice 11 of the fluid circulation circuit 13 in at least one position of the pusher 19 inside the reactor 2 to form a sprinkler rod.
- This sprinkler rod further forms a spindle on which the or at least one of the cassettes 20 can be threaded in the case of a supply using cassettes.
- the pusher 19 comprises a piston head 21 having an active thrust surface 23 corresponding to the surface of said piston head 21 which can be positioned in bearing contact with a cassette 20 to be driven in movement, this active thrust surface 23 of the piston head 21 being provided with a hollow rod 24 projecting from the active surface 23 of the piston head 21, this rod 24 provided with perforations 25 on at least a part of its length being in fluid communication with the inlet orifice 11 of the fluid circulation circuit 13 in at least one position of the pusher 19 inside the reactor 2 to form a sprinkler rod, this sprinkler rod forming in addition a spindle on which the or at least one of the cassettes 20 is threadable.
- each cassette 9 is provided with an axial through passage so that it can be plugged into the sprinkler rod forming a spindle.
- This sprinkler rod offers many advantages and in particular allows distribution of the inoculum or leachate over a significant length of reactor 2.
- this sprinkling rod 24 is in fluid communication with the inlet opening 11 of the fluid circulation circuit 13 in the end position of the pusher 19 inside the reactor 2.
- the cassettes are pre-filled with products, in particular with urban solid waste such as kitchen waste to be treated.
- the storage tank 26 is filled with an inoculum.
- the pusher 19 is extracted from the reactor 2.
- the reactor is pivotally moved in the direction of a lowering of
- the pusher with the cassettes is introduced through the inlet 3 for supplying the products to be treated, into the reactor 2.
- the cassettes are introduced using the pusher, moving at
- the inlet opening 11 of the reactor 2 is in fluid communication with the pipe 8 of the liquid / solid separator 7 in order to supply the interior of the latter with fluid via the sprinkling rod 24 passing axially through each cassette 20.
- the inlet 3 for supplying products and the outlet 4 for discharging the treated products are hermetically closed using the systems 27 of closure to gradually achieve the anaerobic conditions necessary for the
- the reactor is pivotally moved in the direction of a lifting of the inlet 3 for the supply of products to be treated.
- the fluid circulation pump 14 is put into service to allow the contents of the storage tank 26 to feed the reactor 2 via the inlet 11 of the reactor 2.
- the heating means are activated to allow the circulation of a hot fluid in the double wall of the reactor 2. Likewise, the walls of the storage tank 26 arranged on the fluid circulation circuit 13 can be heated.
- the fluid from the circulation circuit 13 enters the reactor 2 via
- the inlet orifice 11 feeds each cassette via the sprinkling rod 24 fitted to the pusher 19 and percolates by gravity through the solid products to be treated. It thus passes through the solid products contained in the cassettes, then passes through the perforated wall of the separator to reach the space 10 provided between the perforated peripheral side wall 9 of the separator 7 and the body 6.
- the inoculum or leachate becomes loaded with solubilized organic matter, that is to say with degraded and liquefied solid organic matter before leaving the reactor 2 through the outlet orifice 12 to return, after passing through the filter 30 equipping said outlet orifice 12, via the circulation circuit 13, in the reactor 2 in order to percolate again.
- the liquid passes through the storage tank 26 arranged on said circuit 13.
- the liquefaction of the solid material allows the continuous production of leachate which is added to the volume of inoculum initially introduced.
- the degraded material allows the production of biogas and a
- digestate remainder of solid matter
- the reactor When a new cassette is to be introduced into the installation, the reactor is tilted in the direction of a lowering of the inlet 3 for supplying products to be treated to the reactor, and the pump is stopped.
- the inlet 3 for supplying products to be treated and the outlet 4 for discharging treated products from the reactor 2 are open and the pusher is extracted from the reactor 2 through the inlet 3 for supplying the products to be treated from the reactor 2.
- a new cassette filled with products to be treated is plugged into the sprinkler rod of the pusher to extend as close as possible to the piston head of the pusher and the pusher, equipped with its cassette, is reintroduced into the reactor, so that the sprinkler rod of the pusher passes through, during the sliding introduction of the pusher into the reactor, the cassettes which have remained in place.
- the inside of the reactor causes the expulsion of the last cassette from the line of cassettes, that is to say the cassette positioned on the outlet side 4 for discharging the treated products from the reactor 2.
- a new cycle can then be carried out as described above.
- the frequency of introduction of the cassettes fixes the residence time of the products in the reactor. Usually, this processing time is a minimum of four weeks. To maintain an optimum leachate level in the storage tank 26, part of it is regularly withdrawn from the installation and can be used as liquid fertilizer.
- a gauge or equivalent allows the level of the leachate to be monitored inside the storage tank 26.
- This operation may only take a few minutes.
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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)
- Biomedical Technology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Molecular Biology (AREA)
- Clinical Laboratory Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1906442A FR3097230B1 (fr) | 2019-06-17 | 2019-06-17 | Installation de traitement, notamment pour le traitement par fermentation de déchets organiques |
PCT/FR2020/050964 WO2020254740A1 (fr) | 2019-06-17 | 2020-06-05 | Installation de traitement, notamment pour le traitement par fermentation de déchets organiques |
Publications (1)
Publication Number | Publication Date |
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EP3983521A1 true EP3983521A1 (fr) | 2022-04-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20742320.3A Withdrawn EP3983521A1 (fr) | 2019-06-17 | 2020-06-05 | Installation de traitement, notamment pour le traitement par fermentation de déchets organiques |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220243153A1 (fr) |
EP (1) | EP3983521A1 (fr) |
FR (1) | FR3097230B1 (fr) |
WO (1) | WO2020254740A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3139344B3 (fr) | 2022-09-02 | 2024-08-09 | Institut National De Rech Pour Lagriculture Lalimentation Et Lenvironnement | Installation de traitement, notamment pour le traitement par fermentation de déchets organiques |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1006957A (fr) * | 1949-12-16 | 1952-04-29 | Centrale Tech Francaise | Cellule pour fermentation de matières organiques, pour labrication d'engrais et production de gaz combustibles |
DE3780044D1 (de) * | 1986-03-14 | 1992-08-06 | Forschungszentrum Juelich Gmbh | Verfahren zur durchfuehrung gasbildender biotechnologischer prozesse in festbettreaktoren und zum be- und entgasen geeignete vorrichtungen. |
JP3340437B2 (ja) * | 1993-04-22 | 2002-11-05 | ベーエーゲー ビオエネルギー ゲゼルシャフト ミット ベシュレンクテル ハフツング | 生物廃棄物を肥料化及び湿式醗酵させる方法及び装置 |
CN201268698Y (zh) * | 2008-05-13 | 2009-07-08 | 刘硕品 | 一种管式生产沼气装置 |
CN106701545A (zh) * | 2017-02-11 | 2017-05-24 | 西北农林科技大学 | 卧式转筒式沼液原位提质装置及方法 |
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2019
- 2019-06-17 FR FR1906442A patent/FR3097230B1/fr not_active Expired - Fee Related
-
2020
- 2020-06-05 WO PCT/FR2020/050964 patent/WO2020254740A1/fr unknown
- 2020-06-05 US US17/617,575 patent/US20220243153A1/en active Pending
- 2020-06-05 EP EP20742320.3A patent/EP3983521A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2020254740A1 (fr) | 2020-12-24 |
FR3097230A1 (fr) | 2020-12-18 |
US20220243153A1 (en) | 2022-08-04 |
FR3097230B1 (fr) | 2022-08-12 |
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