CH287481A - Process for the incineration of household waste. - Google Patents
Process for the incineration of household waste.Info
- Publication number
- CH287481A CH287481A CH287481DA CH287481A CH 287481 A CH287481 A CH 287481A CH 287481D A CH287481D A CH 287481DA CH 287481 A CH287481 A CH 287481A
- Authority
- CH
- Switzerland
- Prior art keywords
- garbage
- treatment
- incineration
- closed vessel
- steam
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000010791 domestic waste Substances 0.000 title description 3
- 239000010813 municipal solid waste Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010814 metallic waste Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010806 kitchen waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
-
- 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
- Y02E50/10—Biofuels, e.g. bio-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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Description
Procédé pour l'incinération des ordures ménagères. Les ordures méliacrèrea renferment des matières combustibles et. des matières incom bustibles, ces dernières étant en quantité bien inférieure aux matières combustibles.
Lorsque le problème de l'év acuation des ordures ménagères d'une ab\gloinération se pose par suite de manque de place pour leur entassement, l'incinération des matières com- bustible.s de ces ordures représente la solution idéale du point de vue gain de place. Toute fois, parlai les matières tant combustibles qu'incombustibles, il s'en trouve dont la récupération peut être avantageuse pour l'économie nationale.
La présente invention a pour objet un procédé pour l'incinération des ordures mé nagères, visant à l'abaissement. aussi poussé que possible du volume des déchets à éva cuer après incinération, à. la. récupération des matières pouvant encore avoir une valeur pour l'industrie nationale et à l'économie de tout combustible d'apport pour l'incinération des parties combustibles sans valeur.
Ce procédé est caractérisé en ce que l'on traite les ordures brutes, après les avoir dé barrassées de leurs fines, en vase clos par de la vapeur sous pression, de façon qu'une partie importante de l'eau contenue dans les ordures se rassemble au fond du vase elos, d'où elle est, soutirée. Les ordures ainsi en partie desséchées sont. alors mélangées avec les filles séparées préalablement, puis le tout est desséché par de l'air chaud. Finalement le produit ainsi obtenu est incinéré sans ad- jonction de combustible, les papiers et chif fons présents dans les ordures ayant été par ailleurs préalablement enlevés.
Le produit à, incinérer, du fait de son traitement par de la. vapeur sous pression et de son desséchement par de l'air chaud, est non seulement. capable de brûler de lui- même, c'est-à-dire sans adjonction de com bustible, mais il est. également stérilisé, de sorte qu'il est, stable et, par conséquent, peut être emmagasiné. La chaleur fournie par son incinération peut être utilisée pour la pro duction de la vapeur nécessaire au traite ment des ordures brutes débarrassées de leurs fines. Comme, pour cette production, la.
totalité de la, chaleur produite n'est ordi nairement pas nécessaire, l'excès pourra. être employé dans d'autres buts, par exemple pour le chauffage hivernal en commun de -coupes d'immeubles.
Voici, à titre d'exemple, comment. le pro cédé objet de l'invention peut être réalisé en pratique Les ordures brutes déchargées par les ea- inions de voirie passent en premier lieu sur un crible pour en séparer les fines. Dans ce but, on utilise 1i11 crible dont la dimension des mailles varie entre 8 à 10 min de côté. Les \?5 % environ des ordures brutes passent, à travers le crible et sont recueillis comme fines. Les ordures ainsi débarrassées de leurs fines sont. transportées pour être chargées dans des paniers destinés à être .introduits dans des dessiccateurs.
Au cours de ce trans- port, les papiers et. les chiffons sont enlevés des ordures et mis de côté afin d'être uti lisés pour eux-mêmes, par exemple pour la fabrication de pâte à papier.
La partie des ordures qui est chargée dans les dessiccateurs est constituée princi palement par des déchets de cuisine (légumes, fruits, etc.). Cette partie renferme Lui très fort pourcentage d'eau.
Une fois dans les dessiccateurs, cette partie des ordures est mise en contact direct avec de la vapeur sous pression. La température, dans les dessiccateurs, peut s'élever jusqu'à 150 C. Par ce traitement, les ordures sont stérilisées, les graisses sont fondues et la ma jeure partie de l'eau contenue dans les ordures en est expulsée et se rassemble au fond des dessiccateurs. Le liquide graisseux ainsi recueilli est vidangé à l'aide d'une.
vanne placée à la partie inférieure des des- siccateurs. La durée du traitement dans ceux- ci est d'environ deux heures, au cours du quel la pression est d'abord maintenue Ù, 3 atmosphères, puis poussée jusqu'à 5 at mosphères.
Au sortir des dessiccateurs, les ordures sont en partie desséchées. Le traitement par la vapeur est poussé jusqu'à ce que leur teneur en eau ait été abaissée dans une forte proportion, par exemple pour qu'elles ne contiennent plus que 18 % d'eau environ. On mélange ces ordures traitées avec les fines qui ont été séparées des ordures brutes comme indiqué ci-dessus, et le tout est des séché par de l'air chaud.
Ce séchage est poussé jusqu'à ce qu'on obtienne un produit renfermant tout au plus 5 % d'eau. Ce pro- duit, bien que ne contenant pratiquement ni papiers ni chiffons, brîile de lui-même sans adjonction de combustible. II est incinéré.
Les déchets métalliques renfermés dans les ordures peuvent en être retirés en partie ou en totalité, afin d'être récupérés, et ceci au plus tard avant l'incinération chi produit sec.
L'enlèvement des papiers et des chiffons, au lieu d'être effectué avant le traitement par la vapeur sous pression, peut l'être dans une opération subséquente, mais en tout cas avant l'incinération. De même, la récupéra tion des métaux peut être effectuée avant le traitement. à la vapeur ou su cours d'une opération subséquente.
Process for the incineration of household waste. Meliacre garbage contains combustible materials and. combustible materials, the latter being in a much smaller quantity than combustible materials.
When the problem of evacuating household refuse from ab \ gloineration arises due to a lack of space for its piling up, the incineration of the combustible materials of this refuse represents the ideal solution from the point of view of space saving. However, talking about both combustible and non-combustible materials, there are some whose recovery can be advantageous for the national economy.
The present invention relates to a method for the incineration of household waste, aimed at lowering. as high as possible of the volume of waste to be evacuated after incineration, to. the. recovery of materials that may still be of value to national industry and to the economy of any feedstock for incineration of worthless fuel parts.
This process is characterized in that the raw garbage is treated, after having stripped it off with its fines, in a closed vessel with pressurized steam, so that a significant portion of the water contained in the garbage is collected. gathers at the bottom of the vase elos, from where it is, drawn off. The garbage thus partly dried out is. then mixed with the previously separated daughters, then the whole is dried with hot air. Finally, the product thus obtained is incinerated without the addition of fuel, the papers and figures present in the garbage having moreover been removed beforehand.
The product to be incinerated due to its treatment with. steam under pressure and its drying out by hot air, is not only. capable of burning on its own, that is to say without the addition of fuel, but it is. also sterilized, so that it is, stable and, therefore, can be stored. The heat supplied by its incineration can be used for the production of the steam necessary for the treatment of the raw refuse freed of its fines. As, for this production, the.
not all of the heat produced is ordinarily necessary, the excess may. be used for other purposes, for example for winter heating in common of sections of buildings.
Here's how, as an example. the process which is the subject of the invention can be carried out in practice. The raw refuse discharged by the road waste passes firstly over a screen to separate the fines therefrom. For this purpose, a screen is used, the mesh size of which varies between 8 to 10 min per side. About \? 5% of the raw garbage passes through the screen and is collected as fines. The garbage thus freed of its fines is. transported to be loaded in baskets intended to be introduced into desiccators.
During this transport, the papers and. the rags are taken out of the garbage and put aside for use on their own, for example for making pulp.
The part of the garbage which is loaded in the desiccators consists mainly of kitchen waste (vegetables, fruits, etc.). This part contains a very high percentage of water.
Once in the desiccators, this part of the garbage is brought into direct contact with pressurized steam. The temperature in the desiccators can rise up to 150 C. By this treatment, the garbage is sterilized, the fats are melted and most of the water contained in the garbage is expelled and collected in the garbage. bottom of the desiccators. The fatty liquid thus collected is drained using a.
valve placed at the bottom of the desiccators. The duration of the treatment in these is about two hours, during which the pressure is first maintained at Ù.3 atmospheres, then increased to 5 at mospheres.
On leaving the desiccators, the garbage is partly dried out. The steam treatment is continued until their water content has been reduced in a large proportion, for example so that they only contain about 18% water. This treated garbage is mixed with the fines which have been separated from the raw garbage as indicated above, and the whole is dried by hot air.
This drying is carried out until a product containing at most 5% water is obtained. This product, although containing virtually no paper or rags, burns on its own without the addition of fuel. He is cremated.
The metal waste contained in the garbage can be removed in part or in whole, in order to be recovered, and this at the latest before incineration or dry product.
The removal of papers and rags, instead of being carried out before treatment with pressure steam, can be done in a subsequent operation, but in any case before incineration. Likewise, the recovery of metals can be carried out before treatment. steam or during a subsequent operation.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH287481T | 1951-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH287481A true CH287481A (en) | 1952-12-15 |
Family
ID=4485803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH287481D CH287481A (en) | 1951-02-21 | 1951-02-21 | Process for the incineration of household waste. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH287481A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2335473A1 (en) * | 1975-12-15 | 1977-07-15 | Nittetsu Kakoki Kk | RESIDUAL LIQUID TREATMENT PROCESS, APPARATUS FOR ITS IMPLEMENTATION, AND COMPOSITION OF FERTILIZERS |
FR2579908A1 (en) * | 1985-04-03 | 1986-10-10 | Tunzini Nessi Entreprises Equi | Method and device for treating household waste |
FR2683546A1 (en) * | 1991-11-08 | 1993-05-14 | Sistemas Ibericos Residuos Sa | Process for the manufacture of a solid fuel material from urban waste |
ES2128894A1 (en) * | 1991-11-08 | 1999-05-16 | Sibersa | Improvements to patent of invention no. 9102845 for: "Process for manufacturing solid combustible material from solid urban wastes and/or industrial wastes which resemble urban and/or agricultural wastes" |
WO2003025101A2 (en) * | 2001-09-19 | 2003-03-27 | Slane Environmental Limited | Waste treatment |
-
1951
- 1951-02-21 CH CH287481D patent/CH287481A/en unknown
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2335473A1 (en) * | 1975-12-15 | 1977-07-15 | Nittetsu Kakoki Kk | RESIDUAL LIQUID TREATMENT PROCESS, APPARATUS FOR ITS IMPLEMENTATION, AND COMPOSITION OF FERTILIZERS |
FR2579908A1 (en) * | 1985-04-03 | 1986-10-10 | Tunzini Nessi Entreprises Equi | Method and device for treating household waste |
FR2683546A1 (en) * | 1991-11-08 | 1993-05-14 | Sistemas Ibericos Residuos Sa | Process for the manufacture of a solid fuel material from urban waste |
BE1005574A3 (en) * | 1991-11-08 | 1993-11-09 | Sist S Ibericos De Residuos S | Field of manufacturing process solid fuel based on urban waste or assimilated. |
ES2128894A1 (en) * | 1991-11-08 | 1999-05-16 | Sibersa | Improvements to patent of invention no. 9102845 for: "Process for manufacturing solid combustible material from solid urban wastes and/or industrial wastes which resemble urban and/or agricultural wastes" |
WO2003025101A2 (en) * | 2001-09-19 | 2003-03-27 | Slane Environmental Limited | Waste treatment |
WO2003025101A3 (en) * | 2001-09-19 | 2003-08-07 | Slane Environmental Ltd | Waste treatment |
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