IE43112B1 - Plant for processing refuse and/or concentrated sludge - Google Patents
Plant for processing refuse and/or concentrated sludgeInfo
- Publication number
- IE43112B1 IE43112B1 IE1124/76A IE112476A IE43112B1 IE 43112 B1 IE43112 B1 IE 43112B1 IE 1124/76 A IE1124/76 A IE 1124/76A IE 112476 A IE112476 A IE 112476A IE 43112 B1 IE43112 B1 IE 43112B1
- Authority
- IE
- Ireland
- Prior art keywords
- plant
- mixer
- processing chamber
- chamber
- gas
- Prior art date
Links
- 239000010802 sludge Substances 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims description 64
- 239000007789 gas Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 16
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003864 humus Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000005273 aeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/95—Devices in which the material is conveyed essentially vertically between inlet and discharge means
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
- C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
- C05F17/979—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being gaseous
-
- 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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Processing Of Solid Wastes (AREA)
Description
This invention relates to a plant for processing refuse and/or concentrated sludge to produce humus, the plant being of the kind comprising a vertically extending processing chamber, having at its upper end a mixer, an outlet of which is arranged directly to discharge material to be processed into the processing chamber, and at its lower end having a discharge arrangement for discharging the processed material and means for distributing a gas or gas mixture flow throughout tho material in the processing chamber, in use, to assist the biological transformation process.
Conventional plants of this kind tend to be affected by various disadvantages, namely that the material is too wet when introduced into the processing chamber, has an insufficient oxygen content and insufficiently developed biology, and also that this material arrives in the processing chamber in cold and wet condition so that, on the one hand, it lowers the temperature of material already contained in said chamber and thus slows down the biological decomposition and conversion process in this material, and, on the other hand, it requires a comparatively long staying time within the processing chamber to be warmed up, more intensively dried and biologically activated. Also in such conventional plants the heat which is generated by the biological conversion process is not recycled but totally lost. 43112' It is the aim of this invention to provide a plant which is not affected by the above mentioned disadvantages.
According to the present invention there is provided a plant for processing refuse and/or concentrated sludge to produce humus, the plant comprising a vertically extending processing chamber, having at its upper end a mixer, an outlet of which is arranged directly to discharge material to be processed into the processing chamber, and at its lower end having a discharge arrangement for discharging the processed material from the plant, and means for distributing a gas or gas mixture flow throughout the material in the processing chamber, in use, to assist the biological transformation process, wherein the mixer extends at least partly into the interior of the processing chamber to be exposed, in use, to the exhaust gases heated by the heat derived from the biological transformation process within the processed material, and supply means are connected to the mixer for feeding into the material in the mixer pure oxygen or an oxygen containihg gas mixture in a hygroscopic condition in order to absorb, in use, moisture from said material, so that a preliminary decomposition of the material occurs in said mixer before it enters the processing chamber, a gas exhaust duct being connected with the inside of the mixer for exhausting the humidified exhaust therefrom and an arrangement for loosening or breaking up the material being located inside the mixer .
For the aeration,'or ventilation of the material in the processing chamber, it may be advisable to provide a plurality of vertically spaced apart gas distribution blades for supplying gas to the material within said processing chamber, in use, the blades being rotatable about a shaft parallel to the direction of material flow through the processing chamber and having gas-discharge openings at their trailing edges,said openings communicating with a pressure fan for supplying to said openings the gas which, in use, is discharged therefrom.
With a view to loosening or breaking up the material in the processing chamber, it is of advantage if each pair of successively vertically arranged gas distributor blades is interconnected by means of several threads or wires secured to radially spaced points along said blades.
For heating the material in the mixture, there may be provided a heater device for heating the pure oxygen or oxygen containing gas fed to the mixer. Conveniently, the material in the mixer is heated to a temperature between 45 and 7$ C.
In order to prevent sticking of the material in the processing chamber, it is advantageous if the cross-section of the processing chamber, at least in the lower half of the chamber to at least immediately above the discharge arrangement of said chamber, increases in the downward direction.
Advantageously, the inclined or sloping part of the lateral wall of the processing chamber has an angle of inclination in the range 10 - 25° to the vertical.
To ensuring trouble-free and full evacuation of treated material across the entire floor area of the processing chamber, it is also advantageous for the bottom of the processing chamber to have the form of an inverted frusto-conical surface. In such an arrangement a delivery or clearing device is conveniently provided in such a way as to sweep across this floor area of the chamber and convey the material into the delivery or discharge opening.
For the purpose of achieving optimum utilisation of the heat which is created in the processing chamber as a result of the biological decomposition process it is advantageous if the processing chamber has a double wall and the cavity thus formed communicates via at least one opening in the upper region of the chamber with the interior of said chamber, and also is provided with at least one outlet opening in the lower region of the processing chamber.
The invention will now be described by way of example with reference to the accompanying drawings in which: Figure I is a section through a first example of a processing plant constructed according to the present invention , 13112 Figure 2 is a section through a second example of a processing plant constructed according to the present invention.
Figure 3 is a section through a third example of a processing plant constructed according to the present invention, and Figure 4 is a section along the lines IV - IV in Figure 3.
As will be seen from Figure I, the plant which is designed to process refuse and/or concentrated sludge, is provided with a processing chamber 1, extending in the vertical direction, and comprising an opening at its top or upper end in which is fitted a mixer 3 for receiving the material to be processed, and a discharge mechanism at its bottom end for delivering or evacuating the process material « from the plant.
The mixer 3 extends into the interior of the processing chamber 1, and material to be treated is delivered into the chamber 1 from the mixer 3 in measured amounts or batches. As a result of this arrangement, a lower part of the mixer 3 which extends into the interior of the processing chamber 1 is warmed up by the exhaust air which is heated in consequence of the biological decomposition process and drawn off through the exhaust port 12.
The interior of the mixer 3 contains an arrangement 4, for loosening or breaking up the material to be aerated or ventilated and also to be dried, a supply pipe 5 for supplying dry hot air, which may also be enriched with pure oxygen, into the mixer interior, as well as a gas exhaust pipe 6 for evacuating the humidified air which has been impoverished with regard to its oxygen content. A heater device 11 is provided for heating the pure oxygen or the oxygen containing gas mixture as fed .to the mixer It will be appreciated that if one mixer should be insufficient to cope with the volume of work involved, naturally two or more such mixers may be provided, which would be arranged vertically above one another.
For ventilating the material within the processing chamber 1, the interior of said chamber is fitted with a plurality of vertically spaced apart gas distributor vanes or blades 8 which are rotatable about a vertical, hollow shaft 7 extending paralled to the direction of material flow through the chamber,said blades or vanes comprising gas discharge ports arranged at their trailing edges. A pressure fan or blower 10 supplies compressed air via supply pipe 9 and shaft 7 to said vanes or blades, the air flowing from said gas discharge ports into the material in the chamber 1.
In order to make quite sure that the treated material will not stick in the interior of the processing chamber I but will slip downwardly towards the delivery mechanism 2, the processing chamber 1 is designed in such a way that in the lower two thirds of the total height of the chamber, its cross-section increases in the downward direction to a point immediately above the delivery mechanism 2.
The top third of the height of the chamber is cylindrical. It has also been found advantageous for the side walls of the processing chamber 1 to slope at an angle of the order of 10 to 25° to the vertical, because within this range of inclination angle the treated material is certain to slide downwardly along said walls but still preserve contact with the chamber walls, which is important for satisfactory aeration or ventilation of the treated material.
With a view to avoiding the collection of material in corners in the floor region of the processing chamber 1, the bottom 13 is designed as an inverted frusto-conical surface so that the material will -always slide along the bottom wall 13 in the direction towards the delivery mechanism 2.
Several thermometer rods 14 which are electrically connected with a regulating and control system, project into the interior of the processing chamber 1 in order to allow optimum adjustment at all times of air supply into the interior of the chamber 1 and control of delivery speed for the processed material.
For improved dehydration of the material in the mixer 3 even at lower temperatures, the gas exhaust pipe 6 of the mixer is connected with an evacuation device 15 (partial vacuum generator) whereby pressure is reduced in the interior of the mixer 3 so that the water embodied in the material to be nrocessed will evanorate even at a temperature lower than I00OC, and corresponding to the material temperature.
For achieving a better utilisation of the residual heat contained in the hot exhaust air leaving at the top of the processing chamber 43113 and therefore improving the efficiency of the plant as a whole, the chamber 1 is preferably provided with a double wall 16. The resulting wall cavity 17 communicates, on the one hand, with the interior of the processing chamber in the uppermost region of the latter through several openings 12 and on the other hand comprises an outlet opening 18 in the lower region of the processing chamber 1.
In this way the whole of the outside of the processing chamberl is warmed up with the aid of the exhaust air which is heated by the biological decomposition process and is at the same time effectively thermally insulated relative to exterior atmosphere.
The outer part 16' of the double walling 16 is additionally provided with suitable thermal insulation. The walls 16 defining the cavity consist of expanded or foamed panels layered with polyester on both sides thereof.
In order to preserve constant operative conditions in the interior of the processing chamber 1, the mixer is provided with a regulator device 19 for regulating the supply of air and/or the partial vacuum present within the mixer 3,and/or the heater device II and thus the temperature at which the oxygen or oxygen containing gas is fed to the material contained within the mixer 3, to achieve and maintain predetermined temperature and humidity values for the material delivered by the mixer to the processing chamber. The material leaving the mixer and dehydrated therein, except for a predetermined residual moisture content, generally still contains about 65% of water. The water content of the material in the mixer 3 is ascertained by probes (hygrometers) 20 extending into its interior. 3112 Since the discharge opening of the mixer 3 extends directly into the interior of the processing chamber I there is no heat loss in the processed material which is delivered by the mixer 3 into the chamber 1, and the biological decomposition or conversion process which has been inaugurated in the mixer itself may continue without suffering any delay in the processing chamber.
It will also be noted from Figure I that a pipe 21 is provided for feeding fresh sludge,dehydrated to approximately 75% water content, to a preliminary mixer device 22, which precedes the mixer 3. In the device, the sludge is aired and heated via pipes 23 and 23' respectively and mixed as required, via a motor driven screw conveyor device 24a in a tube 24 leading to the mixer device 22, with previously processed material so as to influence the consistency and/or biological conditions thereof. A tube 22a extends from the bottom qf the mixer device 22 to join a further tube 22b extending from the mixer 3. Each tube contains a motor driven screw conveyor so that material from the mixer device 22 is transferred by way of the conveyor in the tube 22a to the tube 22b and thence by the conveyor therein, into the mixer 3.
In the processing plant depicted in Figure 2 like parts are provided with like references as in Figure I. In this case the processing chamber 1 is of cylindrical conformation ahd its exterior wall again surrounded by thermal insulation.
In order to make sure that the material in the processing chamber will not agglomerate or form lumps of such size that their interior would not receive an adequate supply of oxygen with the result that biological decomposition could only occur in incomplete form or not at all, this arrangement includes the provision of steel or nylon strips, tapes or threads 37 extending in the vertical direction between every pair of relatively vertically successively arranged ventilation blades 8, which, on rotation of said blades 8, cut up any lumps or large accumulations of material and moreover open up fine ducts or channels so that the air which is introduced by the gas-distributor blades will be evenly distributed into the whole of the material contained in the chamber.
A clearing or stripper tool 25, secured to the lower end of the axis 7, conducts the processed material towards the delivery mechanism 2.
The mixer 3 is double walled and the space enclosed by said double walling communicates with the exhaust air outlet from the processing chamber.
Any water which may condense from the humid exhaust airstream along the outer walls of the mixer 3 will be drawn off and sucked out of the interior of the chamber 1 through the extractor pipe 26. 112 The material which is delivered by the mixer 3 is distributed in the interior of the processing chamber 1 with the aid of distributor arms 27 secured to the axis 7 and a perforated plate 28 arranged thefebeneath.
In the example of execution illustrated in Figures 3 and 4 the processing chamber I is of elongated form and the thermo-insulated side walls slope at an angle of inclination of 10 to 15° from the vertical over the whole of their vertical extension.
The air which is required for satisfactory completion of the biological decomposition process is introduced by means of ventilation tubes 29 secured in the side walls of the processing chamber 1 and directed obliquely downwardly in the interior of the latter, as well as through a ventilation device 30 arranged in the middle of the processing chamber.
The mixer 3 comprises a heater device 31 in its walls.
Delivery of material from the mixer chamber 3 occurs by means of a sliding shaft 32, the position of which with respect to the delivery openings 33 can be controlled by means of a drive 34.
The interior of the mixer 3 contains the mixer screw 4 which extends over the whole length of the mixer. The top of the mixer 3 is closed by a cover hood 36. 4311 3 The mixer 3 is further proyided with a supply system 38 for feeding additives into its interior which are designed to and capable of accelerating the biological decomposition process.
Claims (5)
1.I. A plant for processing refuse and/or concentrated sludge to produce humus, the plant comprising a vertically extending processing chamber,havingatits upper end a mixer, an outlet 5 of which is arranged directly to discharge material to be processed into the processing chamber, and at its lower end having a discharge arrangement for discharging the processed material from the plant, and means for distributing a gas or gas mixture flow throughout the material in the processing 10 chamber, in use’, to assist the biological transformation process, wherein the mixer extends at least partly into the interior of the processing chamber to be exposed, in use, to the exhaust gases heated by the heat derived from the biological transformation process within the processed material, and supply means are 15 connected to the mixer for feeding into the material in the mixer ' pure oxygen or an oxygen containing gas mixture in a hygroscopic conditiciiin order to absorb, in use, moisture from said material, so that a preliminary decomposition of the material occurs in said mixer before it enters the processing chamber, a gas exhaust duct 20 being connected with the inside of the mixer for exhausting the humidified exhaust therefrom, and an arrangement for loosening or breaking up the material being located inside the mixer. 43113
2. A plant as claimed in Claim 1, having a plurality of vertically spaced apart gas distribution blades for supplying gas to the material within said processing chamber, in use, the blades being rotatable about a shaft parallel to the 5 direction of material flow through the processing chamber and having gas-discharge openings at their trailing edges, said openings communicating with a pressure fan for supplying to said openings the gas which, in use, is discharged therefrom.
3. A plant as claimed in Claim 2, in which each pair of 10 successively vertically arranged gas distributor blades is interconnected by means of several threads of wires seen d to radially spaced points along said blades.
4. A plant as claimed in any one of Claims I to 3, comprising a heater device for heating the pure oxygen or oxygen-containing 15 gas fed to the mixer. 5. A plant as claimed in any one of Claims I to 4 wherein the cross-section of the processing chamber, at least in the lower half of the chamber to at least immediately above the discharge arrangement of said chamber, increases in the downward direction. 20 6. A plant as claimed in Claim 5, wherein the inclined or sloping part of the lateral walls of the processing chamber has an angle of inclination in the range of 10 to 25° to the vertical. 3113 7. A plant as claimed in any one of the preceding claims, wherein the bottom of the processing chamber has the form of an inverted frusto-conical surface. 8. A plant as claimed in any one of Claims 1 to 7 in which 5 the reception container is double walled and the space enclosed by said double walling Communicates with the exhaust air outlet from the processing chamber and with a condensation water extractor system. 9. A plant as claimed in any one of the preceding claims, in 10 which the mixer exhaust is connected to a reduced pressure source. 10. A plant as claimed in any one of the preceding claims, wherein the processing chamber has a double wall and the cavity thus formed communicates via at least one opening in the upper region of the chamber with the interior of said chamber, and also 15 is provided with at least one outlet opening in the lower region of the processing chamber. 11. A plant as claimed in Claim 10, in which the outer part of the double walling is surrounded by a thermal insulation. 12. A plant as claimed in Claim 1 in which the mixer has a heater 20 device in its walls. 13. A plant as claimed in Claim 1 or Claim 12, wherein the mixer is provided with a supply system for supplying to its interior additives which accelerate the biological decomposition and --16 4311s conversion process of the material therein. 14. A plant as claimed in Claim 5 or Claim 6, in which the upper half of the processing chamber is of cylindrical form and the lower half is of frusto-conical form.
5. 15. A plant for processing refuse and/or concentrated sludge to make humus substantially as hereinbefore described with reference to and as shown in Figure I or Figure 2 or Figures 3 and 4 of the accompany!ng drawlngs.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH691175A CH589012A5 (en) | 1975-05-29 | 1975-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE43112L IE43112L (en) | 1976-11-29 |
| IE43112B1 true IE43112B1 (en) | 1980-12-17 |
Family
ID=4316972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1124/76A IE43112B1 (en) | 1975-05-29 | 1976-05-28 | Plant for processing refuse and/or concentrated sludge |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS51145767A (en) |
| AT (1) | AT338840B (en) |
| BE (1) | BE842271A (en) |
| CH (1) | CH589012A5 (en) |
| CS (1) | CS189005B2 (en) |
| DE (1) | DE2527195C3 (en) |
| DK (1) | DK237576A (en) |
| ES (1) | ES448332A1 (en) |
| FR (1) | FR2312474A1 (en) |
| GB (1) | GB1552353A (en) |
| IE (1) | IE43112B1 (en) |
| IT (1) | IT1060749B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2709715A1 (en) * | 1977-03-05 | 1978-09-07 | Rolf Flach | DEVICE FOR COMPOSTING A MIXTURE OF SEWAGE SLUDGE AND WASTE CONTAINING WASTE |
| DE2723581C2 (en) * | 1977-03-08 | 1984-11-29 | Techtransfer GmbH, 7000 Stuttgart | Process for the aerobic rotting of animal excrement or sewage sludge as well as a system for carrying out the process |
| JPS5745217Y2 (en) * | 1977-05-27 | 1982-10-05 | ||
| JPS5723465Y2 (en) * | 1977-08-03 | 1982-05-21 | ||
| JPS5475368A (en) * | 1977-11-30 | 1979-06-16 | Ishikawajima Harima Heavy Ind | Compost fermenting apparatus |
| JPS5723467Y2 (en) * | 1977-12-28 | 1982-05-21 | ||
| JPS5492681A (en) * | 1977-12-29 | 1979-07-23 | Kurimoto Ltd | Fermenting method and apparatus under aeration |
| JPS5835957B2 (en) * | 1978-01-27 | 1983-08-05 | 株式会社大須賀技研工業 | Rapid fermentation composting equipment |
| JPS54111472A (en) * | 1978-02-17 | 1979-08-31 | Ishikawajima Harima Heavy Ind | Apparatus for making compost from sludge and like |
| JPS54123470A (en) * | 1978-03-07 | 1979-09-25 | Chubu Shiriyou Kk | Apparatus for producing compost from animal excretion |
| JPS54132666U (en) * | 1978-03-08 | 1979-09-13 | ||
| JPS5829144Y2 (en) * | 1978-05-19 | 1983-06-25 | 大平洋金属株式会社 | Storage tank in waste composting equipment |
| JPS5755300Y2 (en) * | 1978-09-22 | 1982-11-30 | ||
| GB2138795A (en) * | 1983-04-19 | 1984-10-31 | J & C Tools & Engineering Limi | Device and method for making compost |
| EP0281699A1 (en) * | 1987-03-13 | 1988-09-14 | Denys Herbert George Tollemache | Turned and aerated silo composting plant |
| DE4300188C2 (en) * | 1993-01-07 | 1995-06-08 | Wolfgang Dr Bickel | Method and device for the rapid composting of decomposable material |
| KR20010108511A (en) | 1999-05-07 | 2001-12-07 | 야스이치 우에다 | Garbage disposing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593867A (en) * | 1946-02-27 | 1952-04-22 | Eric W Eweson | Apparatus for making organic fertilizer |
| FR1441792A (en) * | 1965-05-05 | 1966-06-10 | Device for the accelerated production of organic fertilizers from food and urban waste by continuous circuit | |
| FR1568489A (en) * | 1967-05-24 | 1969-05-23 | ||
| DE2157409A1 (en) * | 1971-11-19 | 1973-05-24 | Kloeckner Humboldt Deutz Ag | PROCESS FOR CONTINUOUS DEGRADATION OF A GOOD MIXTURE INTO ITS MAIN COMPONENTS, PREFERABLY FOR DEGREASING COMPOST |
-
1975
- 1975-05-29 CH CH691175A patent/CH589012A5/xx not_active IP Right Cessation
- 1975-06-18 AT AT466475A patent/AT338840B/en not_active IP Right Cessation
- 1975-06-18 DE DE2527195A patent/DE2527195C3/en not_active Expired
-
1976
- 1976-05-26 GB GB2180676A patent/GB1552353A/en not_active Expired
- 1976-05-26 BE BE167376A patent/BE842271A/en not_active IP Right Cessation
- 1976-05-27 CS CS353876A patent/CS189005B2/en unknown
- 1976-05-28 FR FR7616242A patent/FR2312474A1/en not_active Withdrawn
- 1976-05-28 DK DK237576A patent/DK237576A/en unknown
- 1976-05-28 IE IE1124/76A patent/IE43112B1/en unknown
- 1976-05-28 ES ES448332A patent/ES448332A1/en not_active Expired
- 1976-05-29 JP JP6286576A patent/JPS51145767A/en active Granted
- 1976-05-31 IT IT2378876A patent/IT1060749B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| ES448332A1 (en) | 1977-07-16 |
| GB1552353A (en) | 1979-09-12 |
| DK237576A (en) | 1976-11-30 |
| JPS5715071B2 (en) | 1982-03-27 |
| CH589012A5 (en) | 1977-06-30 |
| DE2527195C3 (en) | 1980-04-24 |
| IE43112L (en) | 1976-11-29 |
| JPS51145767A (en) | 1976-12-14 |
| IT1060749B (en) | 1982-08-20 |
| AT338840B (en) | 1977-09-12 |
| FR2312474A1 (en) | 1976-12-24 |
| DE2527195B2 (en) | 1978-07-06 |
| CS189005B2 (en) | 1979-03-30 |
| BE842271A (en) | 1976-09-16 |
| DE2527195A1 (en) | 1976-12-02 |
| ATA466475A (en) | 1977-01-15 |
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