CN1209426A - Aerobic composting technology of organic waste materials - Google Patents
Aerobic composting technology of organic waste materials Download PDFInfo
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- CN1209426A CN1209426A CN98117604A CN98117604A CN1209426A CN 1209426 A CN1209426 A CN 1209426A CN 98117604 A CN98117604 A CN 98117604A CN 98117604 A CN98117604 A CN 98117604A CN 1209426 A CN1209426 A CN 1209426A
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- organic
- composting process
- aerobic
- aerobic composting
- organic waste
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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
- 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
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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to an aerobic composting process by using organic wastes. It is characterized by that using aerobic fermentation accelerator including flyash and utilizing the biological metabolism of aerobic organisms to convert the organic substances being in the organic wastes into organic fertilizer to fully utilize organic wastes ad cleanse environment,at the same time overcoming the demerits of existent technology, such as sticky material and poor permeability by using industrial waste flyash.
Description
The present invention relates to a kind of aerobic composting process by using organic rejected material, more particularly, relate to a kind of composting process that flyash promotes the organic waste high-temperature aerobic that adds.
In recent years, fast development along with China's municipal sewage treatment cause and herding industry, produced a large amount of organic wastes, these organic wastes comprise vinasse that municipal wastewater, mud, domestic refuse, people and animals' ight soil, brewery produces, food service industry processing refuse etc., their stacking has taken a large amount of land resourcess, and has caused relatively serious environmental pollution.Domestic some peasant adopts untreated organic waste direct returning to farmland, has caused secondary pollutions such as disease and pest.How reasonably to utilize these organic wastes, they are turned waste into wealth, become a problem demanding prompt solution.
At present, the method for more advanced in the world processing organic waste is to utilize its fermentation composting.For example: the city sewage and sludge of Britain has 58% to be used as fertilizer after fermentative processing, and 24% of U.S.'s mud annual production utilizes fermentation to prepare organic fertilizer.Because be rich in organic matter and trace element in the organic waste; use by behind its fertilizer of making in the farmland; can form benign ecological circulation; remedy and use the soil fertility decline that inorganic fertilizer causes; shortcoming such as organism and trace element deficiency; also can reduce The Surroundings in Cities simultaneously widely and pollute, both save the resource and the energy, protect environment again.
The composting process of organic waste is divided into aerobic fermentation and two kinds of technologies of anaerobically fermenting.Aerobic composting process is the biological metabolism effect by the aerobic microorganism, make the organism in the organic waste be converted into the soil ulmin that is rich in plant nutrient, Degradation by microorganism makes the organism stabilization, producing a large amount of heats simultaneously makes temperature of charge keep continuous high temperature, generally continuing several days reduction compost water ratio more than 60 ℃, pathogen kill and parasitic ovum make last material reach innoxious hygienic standard.At present, the aerobic composting process of the domestic a kind of organic waste that generally adopts is: the straw of organic waste with rubbish, fragmentation mixed, top temperature can reach 70 ℃ in aeration process, whole composting process will be with more than 10 days, but the material intensification is slower in its composting process, and the compost cycle is longer, and material is clamminess easily, air permeability is poor, influences the compost effect.
The objective of the invention is to overcome in the above-mentioned prior art, the composting process cycle is longer, material is clamminess easily, the shortcoming of air permeability difference provides a kind of aerobic composting process by using organic rejected material, has been characterized in adopting the aerobic fermentation promotor that comprises flyash, whole composting process material loosening, air permeability is good, and the compost cycle is short, makes industrial waste flyash obtain effective application simultaneously.
A kind of aerobic composting process by using organic rejected material of the present invention is as follows:
In organic waste, add flyash, add backfill again, behind thorough mixing, enter open fermentation cabin and carry out the aeration aerobic fermentation, leavening temperature reaches 55-70 ℃, keeps 2-5 days, when material water ratio is reduced to 30-40%, can deliver from godown, after being dried, obtain fertilizer.
Flyash described in the composting process of the present invention is meant the refuse of fuel-burning power plant coal-powder boiler discharging, and main component is SiO
2, Al
2O
3, FeO, CaO, wherein SiO
2And Al
2O
3Total amount accounts for 80%.Because flyash is loose porous, surface-area is big, and SiO
2And Al
2O
3The strong characteristics of adsorptivity, be beneficial to very much moisture loss in the organic waste.
Organic waste described in the composting process of the present invention is municipal wastewater, mud, domestic refuse, people and animals' ight soil, vinasse, the food service industry processing refuse that brewery produces.
Backfill described in the composting process of the present invention is the foldback material after fermenting, can adopt straw, grass-seed etc. as backfill when initial fermentation.
The weight ratio of above-mentioned each material is organic waste: flyash=100: 5-40 is preferably 100: 30-37; Organic waste: backfill=100: 50-95 is preferably 100: 60-70.
Also can before aerobic fermentation, add deodorizing disinfectant in the composting process of the present invention, play the effect that the effect of deodorizing sterilizing disinfectant can improve leavening temperature simultaneously.For example can adopt unslaked lime etc., add-on is the 5-15wt% of organic waste.
In order to increase effect of fertilizer, after the organic compost drying that the present invention can be obtained, add a certain amount of synergy inorganic fertilizer according to the needs in local farmland; Make particle again behind thorough mixing, use the packing back.Wherein inorganic fertilizer can adopt one or more the mixture in ammonium sulfate, ammonium phosphate, Repone K, the calcium superphosphate.Add-on is 25～35wt% of fertilizer.
Composting process of the present invention is better for the processing of municipal wastewater mud, carries out aerobic fermentation again after should dewatering earlier to the higher mud of water ratio.
Used industrial waste flyash as fermentation accelerant in the composting process of the present invention, by the biological metabolism effect of aerobic microorganism, make the organism in the organic waste be converted into organic fertilizer, organic waste is fully utilized, reduce pollution, purified environment.Simultaneously owing to added flyash, overcome that material is clamminess in the existing technology, the shortcoming of air permeability difference, because flyash has the advantages that surface-area is big, adsorptivity is strong, be beneficial to moisture loss in the organic waste, especially be beneficial to scattering and disappearing of moisture in the mud, therefore in whole aerobic fermentation process, material is very loose, air permeability is good, has improved the compost effect.And material heats up very fast in composting process, generally can be warmed up to 60～70 ℃ at 1～2 day material, can finish whole aerobic fermentation process in 6～8 days, prior art then needs 2～4 talentes can reach leavening temperature, finishes whole aerobic fermentation process and then needs time more than 10 days.Therefore composting process of the present invention has shortened the cycle of aerobic fermentation widely.Composting process of the present invention also makes industrial waste flyash obtain effective utilization.
Examples Example 1: get 518 kilograms in the wet mud of municipal wastewater factory, its water ratio is 78%; Add 48 kilograms in flyash, 437 kilograms in backfill mud, wherein backfill mud is the finished product mud that had fermented of water ratio 22%, is used to regulate water content, wherein contains 52 kilograms flyash; 15 kilograms of unslaked limes behind the thorough mixing, are sent into open fermentation cabin and are carried out aerobic fermentation, deliver from godown after 8 days, and its water ratio is 30%, is dried, and obtains organic fertilizer.Example 2～4: other condition is constant, and the inventory that just adds changes to some extent, sees Table 1.
Table 1 unit: kilogram
Example 5: get 38 kilograms of fresh chicken manures (water ratio 70%), add 30 kilograms in flyash, 32 kilograms of backfills, wherein backfill is the finished product that had fermented of water ratio 20%, is used to regulate water content, behind the thorough mixing, send into open fermentation cabin and carry out aerobic fermentation, deliver from godown after 8 days, its water ratio is 30%, be dried, obtain organic fertilizer.Add granulation after 23.5 kilograms in inorganic fertilizer ammonium sulfate, 5.43 kilograms in ammonium phosphate, 4.82 kilograms of mixing of Repone K then, obtain granulated fertilizer
| Numbering | Wet mud | Add flyash | Unslaked lime | Backfill mud | The flyash total content |
| Example 1 | ????518 | ????48 | ????15 | ????437 | ????9.82％ |
| Example 2 | ????528 | ????72 | ????18 | ????400 | ????14.65％ |
| Example 3 | ????544 | ????115 | ????23 | ????342 | ????20.12％ |
| Example 4 | ????548 | ????120 | ????22 | ????340 | ????20.68％ |
Claims (8)
1. aerobic composting process by using organic rejected material, it is characterized in that: in organic waste, add flyash, add backfill again, behind thorough mixing, enter open fermentation cabin and carry out the aeration aerobic fermentation, leavening temperature reaches 55-70 ℃, kept 2-5 days, and when material water ratio is reduced to 30-40%, can deliver from godown, after being dried, obtain fertilizer.
2. aerobic composting process by using organic rejected material according to claim 1 is characterized in that: the weight ratio of described organic waste and flyash is 100: 5-40.
3. aerobic composting process by using organic rejected material according to claim 1 is characterized in that: the weight ratio of described organic waste and flyash is 100: 30-37.
4. aerobic composting process by using organic rejected material according to claim 1 is characterized in that: described backfill is the foldback material after fermenting, adopts straw or grass-seed as backfill when initial fermentation.
5. technology according to claim 1 is characterized in that: the weight ratio of described organic waste and backfill is 100: 50-95.
6. aerobic composting process by using organic rejected material according to claim 1 is characterized in that: add deodorizing disinfectant unslaked lime before aerobic fermentation, add-on is the 5-15wt% of organic waste.
7. aerobic composting process by using organic rejected material according to claim 1, it is characterized in that the organic compost drying that fermentation can be obtained adds a certain amount of synergy inorganic fertilizer according to the needs in local farmland, make particle fertilizer again behind thorough mixing, add-on is 25～35wt% of fertilizer.
8. aerobic composting process by using organic rejected material according to claim 7 is characterized in that, described inorganic fertilizer can adopt one or more the mixture in ammonium sulfate, ammonium phosphate, Repone K, the calcium superphosphate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117604A CN1209426A (en) | 1998-08-20 | 1998-08-20 | Aerobic composting technology of organic waste materials |
| CN99111417A CN1083817C (en) | 1998-08-20 | 1999-08-13 | Aerobic composting process by using organic rejected material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117604A CN1209426A (en) | 1998-08-20 | 1998-08-20 | Aerobic composting technology of organic waste materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1209426A true CN1209426A (en) | 1999-03-03 |
Family
ID=5225608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98117604A Pending CN1209426A (en) | 1998-08-20 | 1998-08-20 | Aerobic composting technology of organic waste materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1209426A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369868C (en) * | 2006-09-18 | 2008-02-20 | 广东省农业科学院土壤肥料研究所 | Refined fertilizer produced from sludge and producing method thereof |
| CN102329060A (en) * | 2011-06-07 | 2012-01-25 | 甘肃宝地康泰农业科技有限责任公司 | Production process for disposing urban sludge by utilizing attapulgite bio-fermentation technology |
| CN105777244A (en) * | 2016-01-17 | 2016-07-20 | 石璞 | Preparation method of fruit and vegetable biological organic fertilizer |
| CN106495830A (en) * | 2016-09-29 | 2017-03-15 | 天峨县全盛蜂业科技有限公司 | A kind of efficient organic phosphatic fertiliser and preparation method thereof |
| CN109052842A (en) * | 2018-08-31 | 2018-12-21 | 江苏康源环保科技有限公司 | A kind of novel domestic sewage of villages and small towns treatment process |
| CN109650958A (en) * | 2019-01-23 | 2019-04-19 | 湖北绿鑫生态科技有限公司 | Straw compost technique, organic fertilizer and preparation method thereof |
| CN114213167A (en) * | 2021-12-02 | 2022-03-22 | 南方科技大学 | Method for promoting aerobic compost decomposing process and improving compost quality |
-
1998
- 1998-08-20 CN CN98117604A patent/CN1209426A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369868C (en) * | 2006-09-18 | 2008-02-20 | 广东省农业科学院土壤肥料研究所 | Refined fertilizer produced from sludge and producing method thereof |
| CN102329060A (en) * | 2011-06-07 | 2012-01-25 | 甘肃宝地康泰农业科技有限责任公司 | Production process for disposing urban sludge by utilizing attapulgite bio-fermentation technology |
| CN105777244A (en) * | 2016-01-17 | 2016-07-20 | 石璞 | Preparation method of fruit and vegetable biological organic fertilizer |
| CN106495830A (en) * | 2016-09-29 | 2017-03-15 | 天峨县全盛蜂业科技有限公司 | A kind of efficient organic phosphatic fertiliser and preparation method thereof |
| CN109052842A (en) * | 2018-08-31 | 2018-12-21 | 江苏康源环保科技有限公司 | A kind of novel domestic sewage of villages and small towns treatment process |
| CN109650958A (en) * | 2019-01-23 | 2019-04-19 | 湖北绿鑫生态科技有限公司 | Straw compost technique, organic fertilizer and preparation method thereof |
| CN114213167A (en) * | 2021-12-02 | 2022-03-22 | 南方科技大学 | Method for promoting aerobic compost decomposing process and improving compost quality |
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