CN1283595C - High-temperature aerobic fermentation of organic refuse material - Google Patents
High-temperature aerobic fermentation of organic refuse material Download PDFInfo
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- CN1283595C CN1283595C CNB2004100596302A CN200410059630A CN1283595C CN 1283595 C CN1283595 C CN 1283595C CN B2004100596302 A CNB2004100596302 A CN B2004100596302A CN 200410059630 A CN200410059630 A CN 200410059630A CN 1283595 C CN1283595 C CN 1283595C
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- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000010564 aerobic fermentation Methods 0.000 title claims abstract description 19
- 230000004151 fermentation Effects 0.000 claims abstract description 59
- 238000000855 fermentation Methods 0.000 claims abstract description 44
- 239000010815 organic waste Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000007787 solid Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000003337 fertilizer Substances 0.000 claims abstract description 14
- 238000005273 aeration Methods 0.000 claims abstract description 11
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 6
- 239000012065 filter cake Substances 0.000 claims abstract description 6
- 238000011081 inoculation Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims abstract description 4
- 239000000706 filtrate Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 238000009264 composting Methods 0.000 claims description 4
- 239000006200 vaporizer Substances 0.000 claims description 4
- 241001465754 Metazoa Species 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 235000013619 trace mineral Nutrition 0.000 claims description 3
- 239000011573 trace mineral Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 241000894006 Bacteria Species 0.000 abstract description 6
- 244000052616 bacterial pathogen Species 0.000 abstract description 4
- 241000283690 Bos taurus Species 0.000 abstract 1
- 230000035558 fertility Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002361 compost Substances 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
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- 244000005700 microbiome Species 0.000 description 2
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- 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
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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a high-temperature aerobic fermentation technology and a device of organic waste. Thermophilic bacteria existing in nature are utilized for converting organic waste into biological organic fertilizer with high quality and soil fertility increase and without pathogenic bacteria. The technology processing time is short and is only from 40 to 72 hours. Biodegradable substances in the organic waste are crushed and then are used as fermentation raw material; the crushed material enters a first level fermentation tank for heating inoculation; simultaneously, the aeration is carried out; then, the material enters a second stage fermentation tank; the aeration is carried out; simultaneously, fermentation additives are added for reinforcing the fermentation; the material enters a lattice screen for separating foreign matter after the material fermentation is finished; then, the material passes through a solid-liquid separating device; formed filter cakes are processed into solid fertilizer; formed filter liquid is processed into liquid fertilizer. The technology can effectively process various kinds of organic waste, such as refuse of a kitchen, cattle's excrement, residual organic substances from food processing, municipal sludge, etc.
Description
Technical field
The present invention relates to organic waste treatment process and equipment, particularly relate to organic waste high temperature aerobic zymotechnique.
Background technology
The main component of domestic waste is an organic substance, and organic substance and high-moisture are traditional treatment method (landfill, the burning etc.) problems of headache the most, also is the major cause that causes traditional treatment method high investment, low output.At present, the major technique of the organic waste of carrying out a biological disposal upon in the world is a compost, is divided into aerobic compost and anaerobic composting.At present, the ubiquitous problem of composting process is: the organism decomposition rate is slow, and treating processes is long; Floor space is big; Remove the pathogenic bacteria weak effect; Attract vectors such as fly, mosquito; Secondary pollution is serious; The product instability, impure many, the marketable value of end product is low.
Summary of the invention
Technical problem to be solved by this invention is exactly in order to overcome above-mentioned weak point of the prior art, and a kind of organic waste high-temperature aerobic fermentation process of producing solid-state and liquid fertilizer that has is provided.
It is a kind of organic waste high-temperature aerobic fermentation process that the present invention solves the problems of the technologies described above the technical scheme that is adopted, and the technical process of taking the concrete measures comprises the following steps:
(1) pulverizes, the biodegradable material in the organic waste is pulverized, as fermentation raw material; Regulate its processing parameter, the pH value is between 6～9, the C/N ratio is 12: 1～30: 1, and the homogenate solid content is controlled at 6%～12%.
(2) one grade fermemtation, the material after the pulverizing enters the one grade fermemtation jar, uses heating unit, makes slurries be warming up to 40 ℃～90 ℃, and the inoculation that heats up provides aeration simultaneously;
(3) second order fermentation, material enter the second order fermentation jar, and aeration is provided, and add fermenting additive simultaneously, and the temperature in the forced fermentation, second order fermentation jar can reach 75 ℃～90 ℃;
(4) composting, the laggard screening that accords with regular rules of material fermentation ends is passed through solid-liquid separating equipment again from foreign material, and the filter cake of formation is processed into solid fertilizer, and filtrate is processed into liquid fertilizer.
The concrete measure of taking also comprises:
In step (1), add entry, by the abiotic degradable foreign material of hydraulic action energy separating most.
The maturing fermentation liquid of second order fermentation jar in the step (3) is back to the one grade fermemtation jar inoculates, simultaneously aeration.
In the step (3), fermenting additive is various inorganic salt and trace element, comprises KH
2PO
4Or MgSO
4Or KCl or FeSO
44H
2O.
In the step (4), the filter cake of formation becomes solid-state fertilizer after super-dry, granulation, packing, and filtrate is through sedimentation, the concentrated liquid state fertilizer that is processed into; Described solid-state fertile humidity is 8%～10%, and the fertile solid content of described liquid state is 30%～35%.
Organic waste is combined by following one or more: the kitchen is surplus, animals ight soil, food processing plant's waste and municipal sludge.
Abiotic degradable foreign material comprise glass or plastics or metal or slag stone.
Processing parameter is: the pH value is between 7～8, and the C/N ratio is 20: 1～25: 1, and the homogenate solid content is controlled at 6%～12%.
The ripe slurries that return in 10%～20% second order fermentation jar are inoculated.
The equipment of corresponding organic waste high-temperature aerobic fermentation process, order comprises: the organic waste removal of impurities is pulverized make the waterpower pulverizer of homogenate, the one grade fermemtation jar that heats up and inoculate, second order fermentation jar with thermophilic fermentation degradation of organic substances, diagrid with the effect of screening foreign material, have the solid-liquid separating equipment that separates ripe fermented liquid, the mud cake that obtains is carried out the exsiccant moisture eliminator, the tablets press of formation solid organic fertilizer; To obtain filtrate carry out settled settling vessel, evaporation concentration is to obtain the vaporizer of liquid organic fertilizer.
Compared with prior art, the present invention pulverizes the biodegradable material in the organic waste, has particularly adopted the waterpower pulverizer, organism is reached comparatively completely with inorganics separate, and is prepared into homogenate simultaneously; Homogenate enters the one grade fermemtation jar then, and the inoculation that heats up provides aeration and stirring simultaneously; Homogenate enters the second order fermentation jar again, and aeration and stirring are provided, and adds fermenting additive, forced fermentation simultaneously; The laggard screening that accords with regular rules of fermentation ends is passed through solid-liquid separating equipment again from foreign material, and the filter cake of formation is processed into solid fertilizer, and filtrate is processed into liquid fertilizer; The fermenting process of whole organic matter carries out at the homogenate state, and each parameter of biological fermentation process can be effectively controlled under the homogenization state, improves the efficient of fermentation and the quality of the finished product; The production processing cycle is short, only needs 40 hours～72 hours.
Description of drawings
Fig. 1 represents process flow sheet of the present invention;
Fig. 2 is the main technique equipment of technical process correspondence among Fig. 1.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
The embodiment of the invention sees that above-mentioned Fig. 1 is to shown in Figure 2.A kind of organic waste high-temperature aerobic fermentation process of the present invention is as follows: organic waste, handle through the waterpower pulverizer, and biodegradable material can be ground into homogenate and make the biological fermentation raw material.Owing to be under hydraulics, thus not only biological organic substance can be made homogenate, and to the bigger stone of some proportions, silt, glass, metal etc. because of gravity settling is discharged from the bottom, light materials such as plastics etc. float on the surface and are removed.Wet separation is efficiency of separation height not only, does not have airborne dust simultaneously and produces, and environmental pollution is little, and waterpower is pulverized can carry out sorting comparatively completely to the foreign material in the organic waste.Through the homogenate that the waterpower pulverizer is handled, simultaneously processing parameter is adjusted, make pH be in 6-9, C/N is in 12: 1-30: between 1, solid content is controlled at about 6%～12%; Enter the one grade fermemtation jar then, make one grade fermemtation jar slurries be warmed up to 40 ℃～60 ℃ by heating unit, return ripe slurries (the containing a large amount of advantage thermophile bacteria) inoculation in 10%～20% second order fermentation jar then, the enzyme of thermophile bacteria activates rapidly at 40 ℃～60 ℃ quilts, simultaneously aeration and stirring.After inoculating successfully, homogenate is transported to the second order fermentation jar.
In the second order fermentation jar, add trace element, strengthen accelerated fermentation processes.Thermophile bacteria utilizes organic matter to carry out metabolism, growth and breeding fast.Because metabolic further reinforcement, the heat of the spontaneous generation of thermophile bacteria metabolism make temperature continue to rise, and are degraded fully up to organic matter, in the fermenting process, the temperature of second order fermentation jar can reach 75 ℃-90 ℃, whole fermentation process about 40 hours consuming time-72 hours.
After the fermentation ends, sophisticated fermented liquid through the diagrid screening, is separated a small amount of not tiny foreign material (as pericarp, shell etc.) of fully fermenting, and these foreign material can be back to the waterpower pulverizer again and further ferment.Fermented liquid passes through solid-liquid separation again, and the mud cake of acquisition is through moisture eliminator, tablets press processing, and to become solid content be 90%～95% solid-state bio-organic fertilizer to packing at last.Filtrate then concentrates the liquid bio-organic fertilizer that becomes solid content 20%～35% through settling vessel sedimentation, vaporizer.
Because during the fermentation, homogenate stopped 40 hours being higher than under 60 ℃ the temperature at least, can reach and eliminate pathogenic bacteria fully.Therefore, do not contain pathogenic bacteria in the fertilizer.Bio-organic fertilizer is uniform and stable, inclusion-free, contains a large amount of beneficial microorganisms and nutritive element, the growth of these microorganism group energy strongly inhibited phytopathogens.
This technology belongs to aerobic fermentation, and the foul smell amount of generation is few, by easy biofilm treatment system, can reach discharging standards.
This technology can be handled various organic wastes effectively, comprises food waste, animals ight soil, from the residual organic substances of food-processing and municipal sludge etc.
The organic waste high-temperature aerobic fermentation; mainly realize by following processing unit: organic waste via the removal of impurities of waterpower pulverizer pulverize make homogenate, again by the high-temperature aerobic bacterium act on the one grade fermemtation jar, the second order fermentation jar carries out thermophilic fermentation; degradation of organic substances; again via diagrid screening foreign material; pass through solid-liquid separating equipment; the mud cake drying device, the tablets press production that obtain obtain SOLID ORGANIC fertilizer, and filtrate obtains liquid organic fertilizer through settling vessel, vaporizer production.
Claims (10)
1, a kind of organic waste high-temperature aerobic fermentation process is characterized in that technical process comprises the following steps:
(1) pulverizes, the biodegradable material in the organic waste is pulverized, as fermentation raw material; Regulate its processing parameter, the pH value is between 6～9, the C/N ratio is 12: 1～30: 1, and the homogenate solid content is controlled at 6%～12%.
(2) one grade fermemtation, the material after the pulverizing enters the one grade fermemtation jar, uses heating unit, makes slurries be warming up to 40 ℃～90 ℃, and the inoculation that heats up provides aeration simultaneously;
(3) second order fermentation, material enter the second order fermentation jar, and aeration is provided, and add fermenting additive simultaneously, and the temperature in the forced fermentation, second order fermentation jar can reach 75 ℃～90 ℃;
(4) composting, the laggard screening that accords with regular rules of material fermentation ends is passed through solid-liquid separating equipment again from foreign material, and the filter cake of formation is processed into solid fertilizer, and filtrate is processed into liquid fertilizer.
2, organic waste high-temperature aerobic fermentation process according to claim 1 is characterized in that adding entry in step (1), by the abiotic degradable foreign material of hydraulic action energy separating most.
3, organic waste high-temperature aerobic fermentation process according to claim 1 is characterized in that maturing fermentation liquid with second order fermentation jar in the step (3) is back to the one grade fermemtation jar and inoculates, simultaneously aeration.
4, organic waste high-temperature aerobic fermentation process according to claim 1 is characterized in that fermenting additive is various inorganic salt and trace element, comprises KH in the step (3)
2PO
4Or MgSO
4Or KCl or FeSO
44H
2O.
5, organic waste high-temperature aerobic fermentation process according to claim 1 is characterized in that in the step (4), the filter cake of formation becomes solid-state fertilizer after super-dry, granulation, packing, and filtrate is through sedimentation, the concentrated liquid state fertilizer that is processed into; Described solid-state fertile humidity is 8%～10%, and the fertile solid content of described liquid state is 30%～35%.
6, organic waste high-temperature aerobic fermentation process according to claim 1 is characterized in that described organic waste is combined by following one or more: the kitchen is surplus, animals ight soil, food processing plant's waste and municipal sludge.
7, organic waste high-temperature aerobic fermentation process according to claim 2, described abiotic degradable foreign material comprise glass or plastics or metal or slag stone.
8, organic waste high-temperature aerobic fermentation process according to claim 1, it is characterized in that processing parameter is: the pH value is between 7～8, and the C/N ratio is 20: 1～25: 1, and the homogenate solid content is controlled at 6%～12%.
9, organic waste high-temperature aerobic fermentation process according to claim 3 is characterized in that returning the interior ripe slurries of 10%～20% second order fermentation jar and inoculates.
10, organic waste high-temperature aerobic fermentation process according to claim 1, the corresponding device that it is characterized in that described process flow steps comprises in proper order: the organic waste removal of impurities is pulverized make the waterpower pulverizer of homogenate, the one grade fermemtation jar that heats up and inoculate, second order fermentation jar with thermophilic fermentation degradation of organic substances, diagrid with the effect of screening foreign material, has the solid-liquid separating equipment that separates ripe fermented liquid, the mud cake that obtains is carried out the exsiccant moisture eliminator, the tablets press of formation solid organic fertilizer; To obtain filtrate carry out settled settling vessel, evaporation concentration is to obtain the vaporizer of liquid organic fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100596302A CN1283595C (en) | 2004-06-14 | 2004-06-14 | High-temperature aerobic fermentation of organic refuse material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100596302A CN1283595C (en) | 2004-06-14 | 2004-06-14 | High-temperature aerobic fermentation of organic refuse material |
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| Publication Number | Publication Date |
|---|---|
| CN1712386A CN1712386A (en) | 2005-12-28 |
| CN1283595C true CN1283595C (en) | 2006-11-08 |
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| CNB2004100596302A Expired - Fee Related CN1283595C (en) | 2004-06-14 | 2004-06-14 | High-temperature aerobic fermentation of organic refuse material |
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| CN102515907A (en) * | 2011-12-31 | 2012-06-27 | 广州市城市管理技术研究中心 | Aerobic composting method for organic perishable garbage |
| CN102603370A (en) * | 2012-03-27 | 2012-07-25 | 河南农业大学 | Treatment technology for producing organic fertilizer by tobacco field waste and fermentation tank thereof |
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| CN116573823B (en) * | 2023-07-13 | 2023-09-15 | 四川鹏鹞环保设备有限公司 | System and fermentation method for high-temperature aerobic fermentation of waste organic matters |
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