CA2190244A1 - Method of composting organic materials, in particular refuse - Google Patents
Method of composting organic materials, in particular refuseInfo
- Publication number
- CA2190244A1 CA2190244A1 CA002190244A CA2190244A CA2190244A1 CA 2190244 A1 CA2190244 A1 CA 2190244A1 CA 002190244 A CA002190244 A CA 002190244A CA 2190244 A CA2190244 A CA 2190244A CA 2190244 A1 CA2190244 A1 CA 2190244A1
- Authority
- CA
- Canada
- Prior art keywords
- exhaust air
- air
- composting
- organic materials
- oxygen
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009264 composting Methods 0.000 title claims abstract description 6
- 239000011368 organic material Substances 0.000 title abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000002361 compost Substances 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002352 surface water 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
- 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
-
- 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
- C05F17/60—Heating or cooling during the treatment
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
In a method of composting or-ganic materials, in particular refuse (13), the organic materials undergo bi-ological degradation assisted by forced aeration in a closed container (4). In order to simplify a process of this kind, the exhaust air is entirely recycled into the compost material in the closed con-tainer (4) without any added oxygen.
Description
21 ~0244 METHOD FOR COMPOSTING ORGANIC SUBSTANCES. IN PARTICULAR
WASTE MATERIAL
FIELD OF THE INVENTION
The invention refers to a method for ~u~,uoOl~ organic substances, in particu-lar waste material, wherein the organic substances are decu"~,uùS~ biuluuv;~a''y in a closed container using forced ventilation.
BACKGROUN[) QF THE INVENTION . ~ .
Methods of said kind are already known. In this cul 1l ,e.,Liull it is advantageous to refeed the exhaust air to the mass located in the container, i.e. to carry out a so-called circulating air conduction. Thereby the amount of the exhaust air to be re-moved from the circuit, to be set free to the dllll~O,ullele and therefore to be purified b~ur~llalld is reduced. Thereby, however, the oxygen content of the air circulating through the container is reduced. For the cull ,pellsdliull thereof it has already been proposed to introduce fresh air into the circuit (metered addition of fresh air). Fur-thermore it has been proposed to add pure oxygen in a metered amount.
SUMMARY OF THE INVENTION . . . ..
It is therefore the object of the invention to simplify the method as described above.
Said object is solved according to the invention in that the exhaust air is c,om-pletely refed to the substances to be culllpool~d in said closed container, and that no oxygen is added. Consequently, a metered addition of oxygen in the form of ambient air or pure oxygen does not take place. Thus, the oxygen content in the circulating air is reduced. It was surprisingly d~ "";"ed that no disadvantages are ~,u", Idul~dtherewith. It dO~Ul liOI lil l!~JIy showed that the gas flowing through the substances to be cu,,,po~d does not ne~oOalily have to comprise oxygen. It was surprisingly found _ _ .
2t 9~244
WASTE MATERIAL
FIELD OF THE INVENTION
The invention refers to a method for ~u~,uoOl~ organic substances, in particu-lar waste material, wherein the organic substances are decu"~,uùS~ biuluuv;~a''y in a closed container using forced ventilation.
BACKGROUN[) QF THE INVENTION . ~ .
Methods of said kind are already known. In this cul 1l ,e.,Liull it is advantageous to refeed the exhaust air to the mass located in the container, i.e. to carry out a so-called circulating air conduction. Thereby the amount of the exhaust air to be re-moved from the circuit, to be set free to the dllll~O,ullele and therefore to be purified b~ur~llalld is reduced. Thereby, however, the oxygen content of the air circulating through the container is reduced. For the cull ,pellsdliull thereof it has already been proposed to introduce fresh air into the circuit (metered addition of fresh air). Fur-thermore it has been proposed to add pure oxygen in a metered amount.
SUMMARY OF THE INVENTION . . . ..
It is therefore the object of the invention to simplify the method as described above.
Said object is solved according to the invention in that the exhaust air is c,om-pletely refed to the substances to be culllpool~d in said closed container, and that no oxygen is added. Consequently, a metered addition of oxygen in the form of ambient air or pure oxygen does not take place. Thus, the oxygen content in the circulating air is reduced. It was surprisingly d~ "";"ed that no disadvantages are ~,u", Idul~dtherewith. It dO~Ul liOI lil l!~JIy showed that the gas flowing through the substances to be cu,,,po~d does not ne~oOalily have to comprise oxygen. It was surprisingly found _ _ .
2t 9~244
- 2 -out thatthe oxygen required for chemical 1Id,,oFullll ~t;Jl) processes as taking place during the ~ul "~-o:,1i"g can be taken up by the " ,i~;, uo, ydl lial l lo COl I ~UI~ t~ ly or at least in part from the water and that threrefor said Illi11VOr~Udlli:~lllo do not need any gase-ous oxygen to be supplied from the outside.
Advantageous further d~ lv~ "v";~ are described in the subclaims.
Preferably the heat produced during cul "~o ,li"g is 'i~ - This is carried out advantageously by cu, Id~l l;,;, ,9 out the moisture contained in the exhaust air and by resupplying the exhaust air without the ~ul~dt~ ed-out water to the container and the substances to be ~;ull".uol~d as contained therein.
The terms exhaust air circulating air and air in the sense of the invention also stand for a gas or a gas mixture in which the oxyqen content is less than that of the ambient air or in which there is no gaseous oxygen at all.
BRIEF DE$CRIPTION QF THE DRAWING
One ~ vodi" ~e~ ~1 of the invention will be explained in the following by means of the ~c~ulll~dllying drawing wherein the only figure shows a diagram of an apparatus for pel ful l l l;, Ig the method .
DETAILED DESCRIPTION OF IJKE~tKRELl EMBODIMENTS
Waste material 13 with biulu~ ully ~ec~" "~,osa11e ~v" ",u"e, ~O is fed into theclosed container 4. Therein it lies on a p~, rulL~J bottom. By means of a moisturing apparatus 5 the waste material 13 can be sprinkled from above with water.
By a forced draught fan 3 the space underneath the pt" rvl~ d bottom is sup-plied with air which flows through the holes of the perforated bottom upwards and , . . , _ _ _,, _, ,,,, ,,, . , .. ,,, , .,, .. ,,, . _, ...
Advantageous further d~ lv~ "v";~ are described in the subclaims.
Preferably the heat produced during cul "~o ,li"g is 'i~ - This is carried out advantageously by cu, Id~l l;,;, ,9 out the moisture contained in the exhaust air and by resupplying the exhaust air without the ~ul~dt~ ed-out water to the container and the substances to be ~;ull".uol~d as contained therein.
The terms exhaust air circulating air and air in the sense of the invention also stand for a gas or a gas mixture in which the oxyqen content is less than that of the ambient air or in which there is no gaseous oxygen at all.
BRIEF DE$CRIPTION QF THE DRAWING
One ~ vodi" ~e~ ~1 of the invention will be explained in the following by means of the ~c~ulll~dllying drawing wherein the only figure shows a diagram of an apparatus for pel ful l l l;, Ig the method .
DETAILED DESCRIPTION OF IJKE~tKRELl EMBODIMENTS
Waste material 13 with biulu~ ully ~ec~" "~,osa11e ~v" ",u"e, ~O is fed into theclosed container 4. Therein it lies on a p~, rulL~J bottom. By means of a moisturing apparatus 5 the waste material 13 can be sprinkled from above with water.
By a forced draught fan 3 the space underneath the pt" rvl~ d bottom is sup-plied with air which flows through the holes of the perforated bottom upwards and , . . , _ _ _,, _, ,,,, ,,, . , .. ,,, , .,, .. ,,, . _, ...
- 3 -through the waste material 13 and exits the closed container 4 at the top. The ex-haust air is led through a heat t~x~ dllg~l ff to which the heat exul~d,,y~r fluid 7 is fed.
The moisture contained in the exhaust air is uulld~lsed thereout and is collected in container 8. The dried exhaust air flows through the gate valve g and arrives once again at the closed container 4 by means of the forced draught fan 3. Fresh air 1 can be supplied via the gate valve 2. Between the heat ek~lld"~l 6 and the gate valve 9 there branches off a line through which the exhaust air can be denated via a further gate valve 10 and a filter 11 into the open air 12.
During normal operation gate valve 9 is opened and gate valves 2 and 10.are closed. Merely a circulating air conduction takes place. No fresh air is added.
Through the heat ~ l ldl lg~:l 6 the heat produced during cu" ,,u~ i, Ig and the water contained in the circulating air will be removed. The oxygen content d~ul ~:ases con-tinuously, which, however, does not impair the co"",o;,li, l9 process, as the oxygen required therefor is taken from the water which is contained in the waste as surface water and as confined water. The col"~,u,li"g method also works in case the oxygen content in the circulating air, i.e. in the exhaust air refed into the closed container 4 equals ~ero.
The moisture contained in the exhaust air is uulld~lsed thereout and is collected in container 8. The dried exhaust air flows through the gate valve g and arrives once again at the closed container 4 by means of the forced draught fan 3. Fresh air 1 can be supplied via the gate valve 2. Between the heat ek~lld"~l 6 and the gate valve 9 there branches off a line through which the exhaust air can be denated via a further gate valve 10 and a filter 11 into the open air 12.
During normal operation gate valve 9 is opened and gate valves 2 and 10.are closed. Merely a circulating air conduction takes place. No fresh air is added.
Through the heat ~ l ldl lg~:l 6 the heat produced during cu" ,,u~ i, Ig and the water contained in the circulating air will be removed. The oxygen content d~ul ~:ases con-tinuously, which, however, does not impair the co"",o;,li, l9 process, as the oxygen required therefor is taken from the water which is contained in the waste as surface water and as confined water. The col"~,u,li"g method also works in case the oxygen content in the circulating air, i.e. in the exhaust air refed into the closed container 4 equals ~ero.
Claims (3)
WASTE MATERIAL
What is claimed is;
1. Method for composting organic substances, in particular waste materials (13),in which the organic substances are decomposed biologically in a closed container (4) using forced ventilation, characterized in that the exhaust air is completely refed into the substances to be composted in the closed container (4), no oxygen being added.
2. Method as claimed in claim 1, characterized in that the heat produced during composting is dissipated.
3. Method as claimed in claim 1 or 2, characterized in that the moisture contained in the exhaust air is condensed thereout.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19513262A DE19513262C1 (en) | 1995-04-07 | 1995-04-07 | Process for composting organic matter, especially waste |
| DE19513262.9 | 1995-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2190244A1 true CA2190244A1 (en) | 1996-10-10 |
Family
ID=7759182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002190244A Abandoned CA2190244A1 (en) | 1995-04-07 | 1996-04-09 | Method of composting organic materials, in particular refuse |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0764145B1 (en) |
| JP (1) | JPH10505054A (en) |
| KR (1) | KR970703293A (en) |
| CN (1) | CN1149865A (en) |
| AT (1) | ATE221866T1 (en) |
| BR (1) | BR9606299A (en) |
| CA (1) | CA2190244A1 (en) |
| CZ (1) | CZ348496A3 (en) |
| DE (2) | DE19513262C1 (en) |
| DK (1) | DK0764145T3 (en) |
| ES (1) | ES2181884T3 (en) |
| LV (1) | LV11798B (en) |
| NO (1) | NO964893D0 (en) |
| PL (1) | PL317464A1 (en) |
| PT (1) | PT764145E (en) |
| WO (1) | WO1996031450A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19641291C1 (en) * | 1996-09-11 | 1998-02-12 | Herhof Umwelttechnik Gmbh | Process for the bio-thermal treatment of waste |
| NZ511761A (en) * | 1998-12-21 | 2003-10-31 | C | A method and apparatus for composting materials (such as animal carcasses) |
| KR200447568Y1 (en) * | 2009-07-23 | 2010-02-05 | 백구엔지니어링(주) | A preventing device of air escape for a drain pipe in a barnyard manure factory |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8201655A (en) * | 1982-04-21 | 1983-11-16 | Rutte Recycling Bv | SINGLE-STAGE METHOD FOR CONTROLLING ANAEROOB CONVERTING THE ORGANIC FRACTION OF URBAN WASTE. |
| SE500845C2 (en) * | 1989-05-30 | 1994-09-19 | Vbb Konsult Ab | Procedure for the recovery of combustible gas, soil and a fuel fraction from waste |
| DK0606119T3 (en) * | 1990-05-09 | 1999-10-11 | Herhof Umwelttechnik Gmbh | Process for composting waste |
| DE4124880C3 (en) * | 1991-07-26 | 2002-11-21 | Herhof Umwelttechnik Gmbh | Process for composting organic waste |
| DE4215269C3 (en) * | 1992-05-09 | 1999-02-11 | Grabbe Klaus | Composting plant with a ventilation system for closed rotting plants |
| DE4322688C2 (en) * | 1993-07-07 | 1995-07-27 | Herhof Umwelttechnik Gmbh | Process for composting organic substances, especially waste |
| DE4345238C2 (en) * | 1993-10-08 | 1997-03-27 | Herhof Umwelttechnik Gmbh | Procedure for determining the energy generated by the composting of organic substances |
| ATE176901T1 (en) * | 1993-11-11 | 1999-03-15 | Klaus Grabbe | METHOD AND DEVICE FOR THE BIOLOGICAL TREATMENT OF SUBSTANCES AND/OR MIXTURES OF SUBSTANCES IN CLOSED ROTTER REACTORS |
-
1995
- 1995-04-07 DE DE19513262A patent/DE19513262C1/en not_active Revoked
-
1996
- 1996-04-09 AT AT96913498T patent/ATE221866T1/en not_active IP Right Cessation
- 1996-04-09 CN CN96190298A patent/CN1149865A/en active Pending
- 1996-04-09 CZ CZ963484A patent/CZ348496A3/en unknown
- 1996-04-09 WO PCT/EP1996/001532 patent/WO1996031450A1/en active IP Right Grant
- 1996-04-09 CA CA002190244A patent/CA2190244A1/en not_active Abandoned
- 1996-04-09 PT PT96913498T patent/PT764145E/en unknown
- 1996-04-09 ES ES96913498T patent/ES2181884T3/en not_active Expired - Lifetime
- 1996-04-09 PL PL31746496A patent/PL317464A1/en unknown
- 1996-04-09 BR BR9606299A patent/BR9606299A/en not_active Application Discontinuation
- 1996-04-09 JP JP53000796A patent/JPH10505054A/en active Pending
- 1996-04-09 DE DE59609529T patent/DE59609529D1/en not_active Expired - Fee Related
- 1996-04-09 KR KR1019960706980A patent/KR970703293A/en not_active Application Discontinuation
- 1996-04-09 EP EP96913498A patent/EP0764145B1/en not_active Expired - Lifetime
- 1996-04-09 DK DK96913498T patent/DK0764145T3/en active
- 1996-11-18 NO NO964893A patent/NO964893D0/en unknown
- 1996-11-28 LV LVP-96-445A patent/LV11798B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO964893L (en) | 1996-11-18 |
| PT764145E (en) | 2002-12-31 |
| ES2181884T3 (en) | 2003-03-01 |
| DE59609529D1 (en) | 2002-09-12 |
| CZ348496A3 (en) | 1997-04-16 |
| DE19513262C1 (en) | 1996-10-24 |
| DK0764145T3 (en) | 2002-11-11 |
| EP0764145A1 (en) | 1997-03-26 |
| WO1996031450A1 (en) | 1996-10-10 |
| LV11798A (en) | 1997-06-20 |
| ATE221866T1 (en) | 2002-08-15 |
| CN1149865A (en) | 1997-05-14 |
| EP0764145B1 (en) | 2002-08-07 |
| KR970703293A (en) | 1997-07-03 |
| BR9606299A (en) | 1997-11-18 |
| LV11798B (en) | 1997-10-20 |
| NO964893D0 (en) | 1996-11-18 |
| JPH10505054A (en) | 1998-05-19 |
| PL317464A1 (en) | 1997-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |