WO2006084943A1 - Procede de traitement de biomasse - Google Patents

Procede de traitement de biomasse Download PDF

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Publication number
WO2006084943A1
WO2006084943A1 PCT/FI2006/000037 FI2006000037W WO2006084943A1 WO 2006084943 A1 WO2006084943 A1 WO 2006084943A1 FI 2006000037 W FI2006000037 W FI 2006000037W WO 2006084943 A1 WO2006084943 A1 WO 2006084943A1
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WO
WIPO (PCT)
Prior art keywords
biomass
enzymes
temperature
mass
drying
Prior art date
Application number
PCT/FI2006/000037
Other languages
English (en)
Inventor
Esko Torkkeli
Original Assignee
Oy Dgt Direct Granulation Technology Ab
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 Oy Dgt Direct Granulation Technology Ab filed Critical Oy Dgt Direct Granulation Technology Ab
Priority to EP06708896A priority Critical patent/EP1851176A1/fr
Publication of WO2006084943A1 publication Critical patent/WO2006084943A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • 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
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
    • 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
    • C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F11/00—Other organic fertilisers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers

Definitions

  • the invention is related to a method for treating biomass and especially such a method for treating biomass in which the biomass is dried in a process in which an essential part of the dried biomass is recycled back to be mixed to the biomass coming into the process.
  • the invention is also related to biological utilization of different kinds of biomasses.
  • biomasses like peat, sludge and different kinds of vegetable wastes, are utilized biologically in growth substrates, fertilizers, for soil improvement in general or for producing biogas in bioreactors.
  • Degradation of cellulose to shorter chain compounds, e.g. sugars intensifies biological processes.
  • a remarkable part of the waste masses of the paper industries consists of biomasses, mostly cellulose fibres, and breaking down cellulose may be an advantageous solution also for handling these masses.
  • thermophilic composting In composting there are micro-organisms, mainly in the thermophilic area, which break down also cellulose. Efficient thermophilic composting, which requires that temperature is held at about 60 °C, is possible only in a properly controlled composting reactor. The time ,,required for composting is in every case several days, and a composted mass must further be aftertreated, e.g. dried or matured and mixed with various improvement materials for obtaining a usable product. Composting also consumes carbon from a biomass and produces carbon dioxide. Moreover, composting large amounts of biomasses in a reactor is an expensive solution.
  • JP 10120482 A presents a method for accelerating composting by adding to a compost mass xylanase breaking down especially lignin and cellulase breaking down cellulose.
  • JP 52107970 A presents a similar quite widely defined method for handling vegetable matter.
  • the solution for treating and utilizing sludge is presented in which sludge is dried to hydrofobized granules and an essential part of the dried granules are circulated back for making sludge to attach to the surface of hydrofobized granules.
  • the treating process may include composting whereby circulation of the granules several times through composting in thermophilic area breaks relatively well also fibrous matter, e.g.
  • JP 2001025799 A presents a method of treating sludge in which suitable enzymes, mainly cellulase, is mixed to so called concentrated sludge (usual dry matter content 3 to 5 %) coming from settling phase.
  • suitable enzymes mainly cellulase
  • the purpose is to break down cell wall and membrane structures in sludge so that further drying would be easier.
  • Enzymes are added in a basin which may be provided with additional mixing and heating for improving the influence of enzymes.
  • sludge is further dried mechanically by e.g. centrifuging or belt filter pressing after which the dry matter content of the sludge has been 26 %, according to the publication. Not until after that, the sludge is dried, probably in a thermal drier.
  • An object of the invention is firstly to provide an efficient and economically advantageous method for utilizing biomasses.
  • An object of the invention is especially to provide a method with which possibilities to utilize different kinds of biomasses, e.g. sludge, collected biowaste or peat, are significantly improved.
  • a further object of the invention is to provide a treating method which makes sure hygienization of biomass and meets the requirements of environmental legislation becoming more stringent.
  • a further object of the invention is to provide a method with which treated biomass is safe and easy to handle and use and may be applied to many utilization purposes.
  • a method for treating biomass in which method the biomass is dried in a process in which an essential part of the dried biomass is recycled back to be mixed to the biomass coming into the process, is characterised in that what is defined in the characterising part of claim 1.
  • Other claims define various embodiments of the invention.
  • the method of the invention is very advantageous because the same circumstances suit well for both drying and efficient treatment with enzymes, e.g. cellulase.
  • the recycling of the biomass has an advantageous influence in both drying and enzyme treatment.
  • Wet biomass added in the mixing phase is deposited on dry mass granules or particles which makes drying easier.
  • An enzyme or mixture of enzymes which is added each time as new biomass is added affects most efficiently the added mass. Because biomass is circulated in the process, it goes through several enzyme treatments which of course improves the effect of the enzymes.
  • Fig. 1 presents schematically a process for applying the method according to the invention
  • Fig. 2 presents schematically another process for applying the method according to the invention.
  • Figs. 3 to 5 present some embodiments of the method according to the invention.
  • a cellulase breaks cellulose down to glucoses and other shorter chain carbon compounds. Enzyme products are often developed for certain purposes, for treating certain biomasses, and they include therefore often several different enzymes. With different cellulases, optimal circumstances for the affect vary. For the solutions presented in this application, the most suitable are enzymes which affect most efficiently in the temperature range of 60 to 70 0 C and when the dry matter content of a biomass is 60 to 70 %. For celMase enzymes in general, a favourable pH range is 3,5 to 5,5 which is characteristic for peat and vegetable waste.
  • Cellulase enzymes are produced also for pH range 6 to 8 which is typical for e.g. many sludges.
  • the mark % means in every context here below weight percents.
  • the basis for the solution is a process provided for direct granulation. The process corresponds to the method presented in Fig. 3.
  • the final product of the process are grains dried to a dry matter content of e.g. about 95 %. Drying and granulation occur in a drum 6 from the end of which dry grains are taken out to a screen 7 and divided so that a desired fraction is taken out from the process as a final product and stored in a dry grain silo 9, and an essential part of the grains is circulated via a crusher 10, circulation conveyor and container 3 provided for circulated grains back to the beginning of the process. Grains are dried efficiently also during the circulation. Ventilation of cool dry air is arranged for the screen, crusher and circulation conveyor, and dry air is blown by a fan 12 into the circulation grain silo 3. By crushing it is secured that the new grains formed on the recycled grains are small enough for hygienization, for example.
  • So called dried sludge the dry matter content of which is 20 to 30 %, is brought into the process through a sludge silo 1.
  • a sludge silo 1 With this sludge, so large amount of recycled grains are mixed that the dry matter content of the mixture is e.g. 50 to 55 %.
  • an enzyme or mixture of enzymes is added into the mass, as indicated by the reference sign 4.
  • the mixed mass in which the new wet sludge is deposited on the surface of dry grains, may be fed directly to the drum 6. It may also be pressed by means of an extruder 5 to pieces which are fed into the drum. Based on our experiences, pressing into pieces quickens drying, and it seems also to help mixing the enzyme efficiently and evenly with the mass.
  • the pieces are e.g.
  • the operation of the drum may be continuous so that a certain amount of new sludge and a corresponding amount of recycled grains are taken into the mixer e.g. every 2 hours, and at the same time a certain amount of an enzyme or mixture of enzymes is added.
  • the cellulase product to be added may be e.g. a product of AB Enzymes GmbH named Econase CE, the estimated need of which is 1 kilogram for each dry matter ton of biomass. Because the biomass is circulated in the process and the enzyme thereby affects it several times, a suitable amount of the enzyme to be added each time may be e.g. 0.5 kilograms per each dry matter ton of new sludge taken into the process. Before mixing the enzyme with the biomass, it may be diluted with water at a ratio of 1:2 to 1:5, for example. By increasing the amount of the enzyme with dilution, it is easier to get it mixed evenly with the biomass.
  • phase 31 mixing of incoming biomass, the dry matter content of which is 20 to 30 %, with recycled grains occurs in phase 31 in which at the same time a certain amount, e.g. the above mentioned amount, of an enzyme or mixture of enzymes is added into the mass.
  • the mixed mass, the dry matter content of which is 50 to 55 %, may be pressed into pieces in phase 32 or that phase may be skipped by advancing directly to phase 33 in which the mass is dried and granulated.
  • the mass is first heated to a temperature which is favourable for the action of the selected enzymes.
  • the enzyme product Econase CE affects best within the temperature range of 60 to 70 °C.
  • the mass is then heated first to this temperature range in which it is held for 1 hour, which is a long enough affecting time for this enzyme.
  • the preferred dry matter content for the action of the enzyme is 60 to 65 %.
  • the mass is treated in the drum provided with stirring and drying air circulation, also its dry matter content is brought at least close to the best possible treatment conditions.
  • the temperature may after that be raised to e.g. 75 to 80 0 C for at least 1 hour. After that drying is continued further in a temperature above 70 0 C, for example, until the dry matter content of the grains is 70 to 95 %, e.g. about 80 % as mentioned above.
  • the grains taken out from the drum are screened in phase 34 from which a desired fraction and amount is taken into the dry grain store and a necessary suitable amount is circulated after crushing phase 35 back to the beginning of the process.
  • Cellulase enzymes suitable for the above described purpose work best in slightly acidic circumstances in which the pH is preferably less than 6.
  • sludge or some other biomass may be treated together with enzyme treating with diluted acid, e.g. acetic acid or strongly diluted hydrochloric acid, lowering the pH.
  • diluted acid e.g. acetic acid or strongly diluted hydrochloric acid
  • the temperature of the mass treated in a drum drier or granulator is held at at least 75
  • the drying of the mass is partly biological process in which the heat generated by biological reactions contributes, and in view of biological actions the most suitable temperatures are preferably below than over 70 0 C.
  • the temperature of the air fed into the drying or granulation drum is of course a little higher than the aimed temperature of the mass.
  • Drying of the biomass is continuing during the circulation in the screen, crusher, circulation conveyor and circulation mass container by means of the ventilation of cool dry air and exhaust of moist air arranged in connection with them.
  • a suitable temperature for drying air is e.g. 15 to 20 0 C.
  • Warm grains coming from the drum are drying efficiently when brought to dry cool air due to vapor pressure difference, and at the same time the grains are shrinking and become more compact.
  • the final product are compact granules the dry matter content of which is 80 to 95 %.
  • hygienization is secured also by crushing the circulated grains small enough so that the new grains formed on them are small enough and the temperature is raised high enough throughout the grains. Because the mass is held close to the hygienization temperature already before hygienization phase, the raising of the temperature high enough is in practice secured. It is to be noted also that if pressing the mass into pieces before starting the drying and heat treatment is included in the method, the most of the pieces are normally broken down completely during the heat treatment before hygienization phase. If bigger pieces remain in the treatment, the holding time in the hygienization temperature is increased respectively.
  • the method of Fig. 4 comprises essentially the same phases as the method of Fig.
  • Fig. 2 presents another example of the process in which the method according to the invention is applied.
  • An example of the corresponding method is presented in Fig. 5.
  • the enzyme treatment occurs in a reactor 22 which is provided with a heating device 26, 27.
  • the biomass is added into the reactor from up, and the bottom 23 of the reactor is constructed so that the mass may pass through it to a conveyor 24 under the bottom, and, on the other hand, air is let into the reactor, as indicated by arrows A, the ventilation being intensified by a suction apparatus 28.
  • the mass is after enzyme treatment discharged by means of the conveyor into a dryer 25 by which it is dried to dry matter content of 70 to 95 %. Granulation may be combined with the drying, and it may be carried out in the same way as described above in relation to the process of Fig. 1.
  • a part of the dried mass is brought into a store 28 and a part is circulated back via a screen 7 and crusher 8 back to the beginning of the process and there into a dry matter silo 19 into which also some other dry biomass, e.g. mass including cellulose, may be brought to be used as a solid additive in the process.
  • the biomass to be added to the process for treatment is brought into a silo 16 and from it through a crusher 17 into a mixer 20 in which circulated dry biomass and possibly some other solid additive from the silo 19 is mixed with it, so that the dry matter content of the mixture is e.g. 50 to 55 %.
  • a certain amount of an enzyme or mixture of enzymes in relation to the amount of dry matter of the biomass brought into the process is added to the mass in the same way as described above in relation to the process of Fig. 1 and method of Fig. 3.
  • the mixed and enzymated biomass may be fed into the reactor directly or also in this case after pressing it into pieces by means of an extruder 21.
  • phase 39 the mass is heated in the reactor first to e.g. 60 to 70 °C in which it is held for 1 hour which is a long enough time for action of the enzymes. After that, the mass is heated to 75 °C for 1 hour for securing the hygienization.
  • phase 40 the mass discharged from the reactor is dried to dry matter content of 70 to 95 % after which it is screened in phase 41. At the same time a part of it is taken as a final product into a store and the remaining part is circulated through a crushing phase 42 back to be mixed in phase 37 with the biomass coming into the process.
  • the odor problem may be removed e.g. by means of a treatment with hydrogen peroxide.
  • hydrogen peroxide For example 40 percent hydrogen peroxide may then be used and dilute it at a ratio of 1:2 to 1:5.
  • Hydrogen peroxide oxidizes odor gases, like hydrogen sulphide.
  • hydrogen peroxide hygienizes e.g. sludge and biowaste, i.e. kills possible plant and other pathoghens in the masses.
  • hydrogen peroxide kills Clostridium bacteria which reduces sulphides.
  • peat has absorbing properties and includes antiseptic and odor removing components. Adding peat as a dry matter into a biomass to be treated (e.g. 10 to 15 percent peat) reduces harmful odors in the final product.
  • a biomass to be treated with the method according to the invention may be e.g. sewage sludge, as it is in the process of Fig. 1. Also the hydrolysis residue of a digester may be treated with the method.
  • a biomass to be treated may include also biomasses from agriculture or animal husbandry which include a lot of cellulose and hemicellulose, or biomass waste produced by food industries.
  • a biomass may include also milled peat or crushed sod peat. Also peat itself may be treated advantageously with the method according to the invention.
  • a biomass may include matter from trees or other plants, like bark, bark waste, sawdust, wood chips or straw, or waste paper a lot of which is often included in separately collected biowaste.
  • a mass to be treated may also be waste mass from which only a part is biomass, e.g. fibreclay, the waste produced by paper industries, the typical contents of which are 25 % biomass (fibres), 25 % clay and 50 % water.
  • a biomass treated with the method of the invention is dry hygienized matter (in many cases granulated) in which a significant part of cellulose and possibly hemicellulose have been broken down with enzyme treatment in connection with drying the mass. Therefore the final product is suitable to be used as a soil improving material or as a basic material in making fertilizer.
  • treating a biomass with the method of the invention before feeding it into a bioreactor increases significantly gas production because there are significantly more short chained carbon compounds available for microbes than the mass originally had.
  • a sludge for example, may be treated with the method of the invention to grains which are fed directly to a digesting reactor.
  • a granulated mass is also suitable for realizing different kinds of biofilters, e.g. in cleaning waste water.
  • the technical values presented above e.g. temperatures, treating times, dry matter contents and added amounts of enzymes, are only examples. As enzyme products are developed, for example, some other values may become more advantageous in realizing the method of the invention.
  • the above described exemplary processes include a phase securing hygienization. There may also be applications in which it is not necessary, and the temperature of a mass may be held a little lower during the whole process.
  • the dry matter content of a mass coming to the drying phase may vary within the range of 40 to 65 %, for example.
  • drying drums, reactors or equivalent devices used for applying the method may vary in many ways.
  • the process described with reference to Fig. 2 may be realized also in a horizontal reactor which may by also a rotating drum, whereby the reactor and the drier may be united.
  • the invention may vary within the scope of the accompanying claims.

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

Abstract

La présente invention concerne un procédé de traitement de biomasse dans lequel la biomasse laisse sécher dans un processus dans lequel une partie essentielle de cette biomasse est séchée et recyclée (35) pour être mélangée (31) à la biomasse arrivant dans le processus, ce processus étant caractérisé en ce qu'une ou plusieurs enzymes ou des mélanges d'enzymes comprenant au moins une cellulase sont ajoutés dans la biomasse dans le processus de séchage, les paramètres de processus et les enzymes ou les mélanges d'enzymes étant sélectionnés de telle façon que la température et la durée de maintenance à cette température soient favorables à l'action des enzymes et que le recyclage et l'addition d'enzymes soient agencés de sorte que les enzymes soient ajoutées dans la biomasse en moyenne plusieurs fois pendant le processus de traitement. Les mêmes circonstances conviennent très bien pour un le séchage et un traitement efficace avec par exemple la cellulase. Le recyclage de la biomasse est intéressant pour le séchage comme pour le traitement par enzymes. La biomasse traitée dans laquelle la cellulose est décomposée dans une trop grande mesure convient pour différents buts.
PCT/FI2006/000037 2005-02-08 2006-02-07 Procede de traitement de biomasse WO2006084943A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06708896A EP1851176A1 (fr) 2005-02-08 2006-02-07 Procede de traitement de biomasse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20050145A FI118596B (fi) 2005-02-08 2005-02-08 Menetelmä biomassan käsittelemiseksi
FI20050145 2005-02-08

Publications (1)

Publication Number Publication Date
WO2006084943A1 true WO2006084943A1 (fr) 2006-08-17

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PCT/FI2006/000037 WO2006084943A1 (fr) 2005-02-08 2006-02-07 Procede de traitement de biomasse

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EP (1) EP1851176A1 (fr)
FI (1) FI118596B (fr)
WO (1) WO2006084943A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008028445A1 (fr) * 2006-09-06 2008-03-13 Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh Procédé et dispositif de déshydratation et de traitement spécifique du flux de substances, de déchets grossiers compatibles avec l'aération
CN101974570A (zh) * 2010-09-09 2011-02-16 天津大学 燃料乙醇生产中回收再利用纤维素酶全组份的方法
EP2480506A1 (fr) * 2009-09-23 2012-08-01 Kainuun Jätehuollon Kuntayhtymä Procédé de séchage de boues
WO2018231157A3 (fr) * 2017-06-16 2019-03-14 Zdroje Zeme A.S. Complexe d'équipement et procédé de traitement sans déchets de déchets ménagers biodégradables
EA038561B1 (ru) * 2017-06-16 2021-09-15 Здрое Земе А.С. Комплекс оборудования и способ безотходной переработки биоразлагаемых муниципальных отходов
WO2022195220A1 (fr) * 2021-03-16 2022-09-22 Sede Environnement Procédé de traitement d'un mélange

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508382A1 (fr) * 1991-04-08 1992-10-14 ALLIED COLLOIDS GmbH Procédé de séchage biologique de boues d'épuration
WO1994013592A1 (fr) * 1992-12-17 1994-06-23 Steag Aktiengesellschaft Procede et installation de traitement de boues
WO2000058229A1 (fr) * 1999-03-29 2000-10-05 Etor Oy Technique de traitement et d'utilisation de boues
JP2001025799A (ja) * 1999-07-15 2001-01-30 Osaka Gas Co Ltd 汚泥処理方法及び汚泥処理システム
JP2003320394A (ja) * 2002-04-30 2003-11-11 Kurita Water Ind Ltd 有機性廃棄物の処理装置及び処理方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508382A1 (fr) * 1991-04-08 1992-10-14 ALLIED COLLOIDS GmbH Procédé de séchage biologique de boues d'épuration
WO1994013592A1 (fr) * 1992-12-17 1994-06-23 Steag Aktiengesellschaft Procede et installation de traitement de boues
WO2000058229A1 (fr) * 1999-03-29 2000-10-05 Etor Oy Technique de traitement et d'utilisation de boues
JP2001025799A (ja) * 1999-07-15 2001-01-30 Osaka Gas Co Ltd 汚泥処理方法及び汚泥処理システム
JP2003320394A (ja) * 2002-04-30 2003-11-11 Kurita Water Ind Ltd 有機性廃棄物の処理装置及び処理方法

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008028445A1 (fr) * 2006-09-06 2008-03-13 Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh Procédé et dispositif de déshydratation et de traitement spécifique du flux de substances, de déchets grossiers compatibles avec l'aération
EP2480506A1 (fr) * 2009-09-23 2012-08-01 Kainuun Jätehuollon Kuntayhtymä Procédé de séchage de boues
EP2480506A4 (fr) * 2009-09-23 2013-03-06 Kainuun Jaetehuollon Kuntayhtymae Procédé de séchage de boues
CN101974570A (zh) * 2010-09-09 2011-02-16 天津大学 燃料乙醇生产中回收再利用纤维素酶全组份的方法
CN101974570B (zh) * 2010-09-09 2013-11-20 天津大学 燃料乙醇生产中回收再利用纤维素酶全组份的方法
WO2018231157A3 (fr) * 2017-06-16 2019-03-14 Zdroje Zeme A.S. Complexe d'équipement et procédé de traitement sans déchets de déchets ménagers biodégradables
EA038561B1 (ru) * 2017-06-16 2021-09-15 Здрое Земе А.С. Комплекс оборудования и способ безотходной переработки биоразлагаемых муниципальных отходов
US11402094B2 (en) 2017-06-16 2022-08-02 Zdroje Zeme A.S. Complex of equipment and method of waste-free processing of biodegradable municipal waste
WO2022195220A1 (fr) * 2021-03-16 2022-09-22 Sede Environnement Procédé de traitement d'un mélange
FR3120801A1 (fr) * 2021-03-16 2022-09-23 Sede Environnement Procédé de traitement d’un mélange

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Publication number Publication date
FI20050145A0 (fi) 2005-02-08
EP1851176A1 (fr) 2007-11-07
FI20050145A (fi) 2006-08-09
FI118596B (fi) 2008-01-15

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