CN1290631C - Resources comprehensive treatment technology for organic waste material - Google Patents
Resources comprehensive treatment technology for organic waste material Download PDFInfo
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- CN1290631C CN1290631C CNB031296912A CN03129691A CN1290631C CN 1290631 C CN1290631 C CN 1290631C CN B031296912 A CNB031296912 A CN B031296912A CN 03129691 A CN03129691 A CN 03129691A CN 1290631 C CN1290631 C CN 1290631C
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- organic
- organic waste
- waste
- anaerobic fermentation
- biogas
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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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- 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
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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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- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to an organic waste material resource recovery integrated processing technology. Organic waste materials are conveyed into a material preparation tank by a screw conveyer, the material preparation tank causes the organic waste materials and technical hot water to be mixed completely and ground, and impurities are removed to generate suspending materials with the solid substance content of 15 to 16% and the temperature of 36 to 37 DEG. After the material preparation is finished, the suspending materials are conveyed into a biologic reactor by a pump to carry out moderate temperature wet type anaerobic fermentation. The intermediate temperature anaerobic fermentation is carried out for 15 to 20 days, and the materials are converted into humus soil and methane gases with high stability. The humus soil is used as base materials of fertilizers to prepare compound fertilizers or organic biologic active fertilizers. The methane gases are used for generating electricity by a methane gas generator set to provide the energy source consumption of the whole technology. The present invention has the advantages of good social benefit, good environment benefit and good economic benefit.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to that a kind of organic waste (organic domestic waste, changing food waste, food industry leftover bits and pieces, organic property mud and feces of livestock and poultry etc.) is innoxious, minimizing, comprehensive process technology.
Background technology
Organic domestic waste, changing food waste, food processing industry leftover bits and pieces, organic property mud and and pollutant such as feces of livestock and poultry all have content of organic matter height, general character such as biodegradable is referred to as biodegradable organic waste.
Handling organic waste with Unareobic fermentation is a kind of effective way that reclaims the organic waste energy, it is a lot of at present both at home and abroad organic waste to be carried out the research that anaerobic fermentation handles, the main method that adopts has wet type anaerobic fermentation, dry-type anaerobic fermentation, according to the technical process branch that ferments two-step fermentation, single-stage fermentation is arranged.These methods generally are that above-mentioned organic waste is handled separately, because influencing the topmost factor of organic matter fermentation is C/N (carbon-nitrogen ratio), the C/N ratio difference of all kinds of organic wastes is bigger, some is higher, some is on the low side, when causing this class organic waste to be handled separately, palliating degradation degree differs, thereby makes that producing the natural pond rate has than big-difference; Simultaneously in order to reach the needed concentration of fermentation, and make biogas yield stablize and maximization, some organic waste need add a certain amount of water, as changing food waste, dried solid organic matters such as organic domestic waste, other organic wastes then need processed just can reach needed concentration earlier, and as liquid organic wastes such as feces of livestock and poultry etc., some then needs to adjust its C/N ratio.Influence mixability, temperature of particle diameter that another key factor of ferment effect is a material, impurity content, suspension etc., in these methods, most of fermentation materials does not pass through effective pre-treatment, particle diameter, impurity content, the degree of mixing fails to reach the optimum response state, causes the product natural pond rate of organic materials generally lower.The natural pond slag impurity that fermentation generates is many, and the fertilizer quality of making is difficult to allow the client accept, and easily causes secondary pollution.The installation for fermenting automaticity is low, is difficult to form continuous production capacity, so treatment scale is generally less.
Summary of the invention
The comprehensive processing technique that the purpose of this invention is to provide a kind of organic waste, so that can handle organic wastes such as organic domestic waste, changing food waste, food processing industry leftover bits and pieces, organic property mud and feces of livestock and poultry simultaneously, make organic waste handle and develop to the comprehensive utilization of resources direction by single treatment technology.
The comprehensive processing technology of organic wastes that the present invention proposes is at first got the raw materials ready to organic waste, makes organic waste pulverize, stir, and removes the impurity in the organic waste simultaneously, and reaches suitable reaction temperature, granularity and concentration; Then, adopt the wet type anaerobic fermentation method, the material through getting the raw materials ready is carried out anaerobic fermentation; Biogas to output is used for generating or thermal source is provided, and the fertile soil that produces is made mixed organic manure or organic biological active fertilizer through prescription, thereby forms the multi-level benign cycle ecosystem that utilizes of living beings.
Technology of the present invention can realize that organic waste focuses on transformation by the processing of small-scale workshop to batch production, scale, makes the resource utilization height of organic waste, and cost of investment is low, simultaneously non-secondary pollution.
The organic waste integrated conduct method that the present invention proposes, the device that relates to comprise that pretreating device, fermentation reaction device, biogas utilization system, dehydration equipment and the fermentation product of all kinds of organic waste receiving bins, organic waste utilize system.Process chart of the present invention is referring to accompanying drawing 1.
Technical process of the present invention is specific as follows:
(1) classification receives, organic waste (comprise organic domestic waste, changing food waste, food processing industry leftover bits and pieces, organic property mud with feces of livestock and poultry etc.) is placed on different accepting in the cabin respectively by property of raw material, the changing food waste solid waste similar to characteristics such as food processing industry leftover bits and pieces is placed on one and accepts the cabin, and the feces of livestock and poultry liquid state organics similar to characteristics such as organic property mud is placed on one and accepts in the cabin;
(2) be mixed, the best C/N (carbon-nitrogen ratio) according to material reaction is transported to all kinds of organic wastes in the stock kettle according to certain proportioning;
(3) get the raw materials ready, stock kettle fully mixes, pulverizes, removes impurity with organic waste, and is adjusted to the desired temperature of mesophilic digestion (36～37 ℃) by technology hot water;
(4) anaerobic fermentation, get the raw materials ready finish after, by pump suspension being got the raw materials ready pumps into bioreactor, warm and humid formula anaerobic fermentation in carrying out makes it to produce fertile soil and biogas with good stability;
(5) composting, base-material with the fertile soil as fertilizer sources, demand at different edaphic condition and crops is prepared burden, mixing, granulation, produce qualified serial mixed organic manure after drying, and perhaps is equipped with certain microbial inoculum and additive and makes organic biological active fertilizer;
(6) biogas utilization, the biogas that anaerobic fermentation produces generates electricity by the marsh gas power generation unit, and by heat reclaiming system waste heat is recycled, to satisfy the energy demand of whole technology.
Advantage of the present invention:
(1) changes organic wastes such as present organic domestic waste, changing food waste, food processing industry leftover bits and pieces, organic property mud and feces of livestock and poultry and be difficult to the present situation effectively handled, it is carried out the integrated treatment of innoxious to greatest extent, minimizing, resource;
(2) waste of organic matter is adopted the processing of wet type anaerobic fermentation, produce compoiste fertilizer or organic biological active fertilizer, and the biogas that utilizes fermentation to produce supplies the energy consumption of whole process system;
(3) utilize stock kettle that material is fully stirred, mixes, remove the impurity in the organic waste simultaneously, regulate temperature of charge, granularity and melting concn, the product natural pond rate of material in bioreactor is improved;
(4) utilize the bioreactor of constant temperature carry out in warm and humid formula anaerobic fermentation, the biogas that will the part fermentation be produced by gas compressor is pressed in the bioreactor to form bubble motion again, reaches the purpose of gas stirring;
(5) bottommost of bioreactor is the residue lodgment, can extract out automatically when reaching a certain amount of, and the superiors are provided with the floating thing removal device, further with the heavier and lighter Impurity removal of not clearing up away in the pre-treatment;
(6) the natural pond slag of anaerobic fermentation generation has improved value-added content of product through processing mixed organic manure or organic biological active fertilizer;
(7) biogas of anaerobic fermentation generation generates electricity by the marsh gas power generation unit, consumes with the energy that whole technology is provided, and forms a self-centered circulation;
(8) effluent cycle is used and is handled the back qualified discharge, and noise is controlled, exhaust-gas treatment is up to standard, non-secondary pollution.
The specific embodiment
Organic domestic waste, changing food waste, food processing industry leftover bits and pieces, organic property mud be delivered in the stock kettle by accepting the conveying worm that the cabin is connected with feces of livestock and poultry with it, mix with technology hot water, to produce the suspended material of 36～37 ℃ of solid matter contents 15～16%, temperature.The function of stock kettle mainly is that organic waste is fully mixed, pulverizes, removes impurity and regulates temperature, granularity and concentration, satisfies the requirement to mesophilic digestion.Pulverize with mixing by an agitator that is fixed on tank deck and finish, the rotary speed of agitator is controlled by AC converter, and the latter can guarantee that abundant stirring again can conserve energy.
Light impurities (for example: wood, plastic foil, cork etc.) floats on the surface, and is removed by slag scraper, after dehydration, sends in the ash can.Heavy impurity (for example: stone, glass, metallic particles etc.) is because centrifugal action is discharged from the discharging opening that keeps to the side in the stock kettle bottom, and the filter of getting the raw materials ready by the stock kettle bottom that suspends is sent into bioreactor.The aperture of filter is 10mm.
Get the raw materials ready and carry out in closed container, this technique unit is the batch processed unit.Get the raw materials ready finish after, by pump suspended material is pumped into bioreactor.All these processes are all finished by automatic operation system control.
The organic matter anaerobic fermentation is that bioprocesses carries out in bioreactor, the motion that material in the bioreactor stirs by gas bubbles realizes, bubble motion is to be pressed in the bioreactor again and to be formed by will the ferment biogas of generation of gas compressor.
Charging aperture is positioned at the top of the outlet that is pressed into gas, is located at the middle and lower part of reactor, and material is once entering by bubble agitation rapid and other mixing of materials.The bottommost of bioreactor is the residue lodgment, can extract out automatically when reaching a certain amount of, and the superiors are provided with the floating thing removal device, further with the heavier and lighter Impurity removal of not clearing up away in the melting process.The material outlet that ferments is located at the bottom near bioreactor, but is in the top of residue lodgment, and the good material that becomes thoroughly decomposed is discharged by this outlet.Methane outlet is on the top of bioreactor, and a part of biogas circulation is used for the stirring of material in the bioreactor, most collecting methane generatings.The material that newly prepares is sent constantly into bioreactor, and the organic matter of fermentation maturity is then constantly discharged, and can guarantee the continuity of work.
Bioreactor is not provided with heating system, constant temperature is guaranteed by three conditions: the one, by the heat-insulation layer insulation of bioreactor, the 2nd, constantly increase the new material that mixes with hot water and regulate material temperature in the bioreactor, the 3rd, the heat that microbial activities in the biochemical process produced.Simultaneously by automatically and the mode that manually combines control various technological parameters.
Bioreactor adopts parallel operation, and when load reached 6.4kgVS/ reactor-m/ days design volume, material is 15～20 days time of staying in reactor, and whole technical process is not subjected to the influence of climatic environment, has high operation stability.
The organic matter that becomes thoroughly decomposed (water content 〉=85%) forms solid-state fertile soil from bioreactor output through dehydration, as the base-material of producing fertilizer.The solids content of digestion mud is about 9%.Mud dewaters in dewaterer.
The waste water that dehydration produces partly returns technological process, and all the other waste water enter Waste Water Treatment.The heat of sterilization is from the using waste heat from tail gas of marsh gas power generation.
Fertile soil as the fertile primary raw material of prescription, according to the demand of soil texture situation and crops, is added an amount of nitrogen, phosphorus, potassium and trace element, make mixed organic manure; Perhaps add specific bacteria agent and additive, make organic biological active fertilizer.
Fertile soil at first Tumblies Dry, and the fertile soil after the oven dry is through forcing to wear into fine powder with the high pressure overhang roll after the cooling, and fine powder is carried and adopted air-flow to carry, and avoids dust from flying.According to situation differences such as soil texture, crops kinds, fertilizer is filled a prescription, prescription adopts computer-controlled gravity system feed, behind the broken crusher machine of chain, evenly stir, be transported to granulating system then and carry out granulation, make mixed organic manure, finished product is packed with automatic packaging machine, the automatic stacking machine piling is transported to the finished product storehouse with loading machine and stores.
The fertile manufacture craft of organic biological active is independently cultivated each bacterial classification earlier, is mixed and made into complex micro organism fungicide then, and composite bacteria agent capable is sneaked in the fertile soil, becomes organic biological active fertilizer through batch mixing, granulation, after packed, sells.
The biogas that anaerobic fermentation produces is because most of water vapor is by condensation separation, so biogas is applicable in gas motor or burner internal combustion.Be the fluctuation in the balance biogas production, the biogas that produces is stored in the gas reservoir, generate electricity by the marsh gas power generation unit, and waste heat is recycled, to satisfy the energy demand of whole technology by heat reclaiming system.
For guaranteeing continuous running, material had been heated to technological temperature before sending into bioreactor.Heating is to carry out in stock kettle, and charging is simply mixed with hot water, and hot water is from thin pulp dewatering system and additional fresh water.
The part waste water that dewaterer produced (about 51%) sewage disposal system is back to the fresh water (FW) system after handling.
The technology water temperature is necessary for 50～70 ℃, decides according to season.Wastewater temperature is about 30 ℃, and the waste heat of generator can be used as and add hot media.
Claims (5)
1, a kind of reclaiming organic waste comprehensive processing technique, it is characterized in that at first organic waste being got the raw materials ready, make organic waste pulverize, stir, remove the impurity in the organic waste simultaneously, and reach suitable in warm and humid formula anaerobic reaction temperature, granularity and concentration; Then, adopt anaerobic fermentation method, warm and humid formula anaerobic fermentation during the material through getting the raw materials ready is carried out; Biogas to output is used for generating or thermal source is provided, and the fertile soil that produces is made mixed organic fertilizer or organic biological active fertilizer through prescription, thereby forms the multi-level benign cycle ecosystem that utilizes of living beings; Its concrete steps are as follows:
(1) classification receives, organic waste is placed on different accepting in the cabin respectively by property of raw material, the changing food waste solid waste similar to characteristics such as food processing industry leftover bits and pieces is placed on one and accepts the cabin, and the feces of livestock and poultry liquid state organics similar to characteristics such as organic property mud is placed on one and accepts in the cabin;
(2) be mixed,, all kinds of organic wastes be transported in the stock kettle according to certain proportioning according to the optimum carbon nitrogen ratio of material reaction;
(3) get the raw materials ready, stock kettle fully mixes, pulverizes, removes impurity with organic waste, and is adjusted to 36～37 ℃ of the desired temperature of mesophilic digestion by technology hot water;
(4) anaerobic fermentation, get the raw materials ready finish after, by pump suspended material is pumped into bioreactor, warm and humid formula anaerobic fermentation in carrying out makes it to produce fertile soil and biogas with good stability;
(5) composting, base-material with the fertile soil as fertilizer sources, requirement at different edaphic condition and crops is prepared burden, mixing, granulation, produce qualified serial mixed organic manure after drying, and perhaps is equipped with certain bacterium base and additive and makes organic biological active fertilizer;
(6) biogas utilization, the biogas that anaerobic fermentation produces generates electricity by the marsh gas power generation unit, and by heat reclaiming system waste heat is recycled, to satisfy the energy demand of whole technology.
2, comprehensive processing technique according to claim 1 is characterized in that organic waste mixing, pulverizing and finished by an agitator that is fixed on tank deck in stock kettle, and the placement speed of agitator is controlled by AC converter.
3, comprehensive processing technique according to claim 1 is characterized in that realizing by the motion of gas bubbles the stirring of material in the bioreactor, and bubble motion is to be pressed in the bioreactor again and to be formed by will the ferment biogas that produces of gas compressor.
4, comprehensive processing technique according to claim 1, the constant temperature that it is characterized in that bioreactor is guaranteed by following factor: the one, by the heat-insulation layer insulation of reactor, the 2nd, constantly increase the new material that mixes with hot water and come material temperature in the conditioned reaction device, the 3rd, the heat that microbial activities in the biochemical process produced.
5, comprehensive processing technique according to claim 1 is characterized in that the fertile soil to producing, and according to the demand of soil texture situation and crops, adds an amount of nitrogen, phosphorus, potassium and trace element, makes mixed organic manure; Perhaps add particular organisms microbial inoculum and nutritional labeling, make organic biological active fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031296912A CN1290631C (en) | 2003-07-03 | 2003-07-03 | Resources comprehensive treatment technology for organic waste material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031296912A CN1290631C (en) | 2003-07-03 | 2003-07-03 | Resources comprehensive treatment technology for organic waste material |
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| CN1478611A CN1478611A (en) | 2004-03-03 |
| CN1290631C true CN1290631C (en) | 2006-12-20 |
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| CNB031296912A Expired - Fee Related CN1290631C (en) | 2003-07-03 | 2003-07-03 | Resources comprehensive treatment technology for organic waste material |
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Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100378039C (en) * | 2004-10-21 | 2008-04-02 | 上海神工环保股份有限公司 | Anaerobic fermentation technology in storehouse for organic garbage and equipment |
| CN100376335C (en) * | 2005-09-19 | 2008-03-26 | 江南大学 | Marsh gas production technology using kitchen residue, straw, stock and fowl dejecta and active mud as material |
| CN1868934B (en) * | 2006-03-20 | 2011-06-01 | 左秀锦 | Skid-mounted combined high temperature constant temperature methane comprehensive utilization system |
| CN101337838B (en) * | 2008-08-11 | 2012-02-22 | 鄂尔多斯市东胜区传祥垃圾处理有限责任公司 | Combined anaerobic fermentation process for organic solid wastes |
| CN101920257A (en) * | 2010-06-29 | 2010-12-22 | 卞为国 | Multifunctional device for treating and converting pollutants into energy resource |
| CN101972770B (en) * | 2010-09-03 | 2013-03-27 | 上海数字智能化系统工程有限公司 | Integrated garbage treatment method and system |
| CN102424613A (en) * | 2011-07-30 | 2012-04-25 | 华电电力科学研究院 | Comprehensive system and method for cooperative utilization of agricultural wastes |
| CN102976580A (en) * | 2011-09-06 | 2013-03-20 | 赵峰 | Process method for constant convergence consumption treatment of sludge |
| WO2013051003A1 (en) * | 2011-10-07 | 2013-04-11 | Transcarb Energy Private Limited | A self-sustainable integrated solid and liquid waste management, treatment, and energy generation system and method |
| CN102557358B (en) * | 2012-02-28 | 2013-08-07 | 崔勇 | Domestic sewage and garbage distributed treatment equipment and process |
| CN102921711B (en) * | 2012-07-17 | 2015-06-17 | 上海环垦生态科技有限公司 | Organic solid waste regeneration resource treatment method and apparatus system thereof |
| CN102996232A (en) * | 2012-10-09 | 2013-03-27 | 贵州泰然环境科技有限责任公司 | Marsh gas power generation method |
| CN103553726B (en) * | 2013-11-06 | 2016-01-06 | 中创宏远（北京）环保科技有限公司 | Changing food waste prepares the method for liquid state organic fertilizer |
| CN103691731B (en) * | 2013-12-26 | 2016-06-29 | 北京中科通用能源环保有限责任公司 | Restaurant garbage treating system |
| CN105063094A (en) * | 2015-09-02 | 2015-11-18 | 淮阴师范学院 | Method for preparing biogas through activated carbon, kitchen garbage and faeces |
| CN112517610A (en) * | 2018-01-07 | 2021-03-19 | 杭州富阳伟文环保科技有限公司 | Integrated crushing treatment device for kitchen waste |
| CN109266689A (en) * | 2018-08-27 | 2019-01-25 | 山东宝力生物质能源股份有限公司 | A kind of method of biomass marsh gas power generation and UTILIZATION OF VESIDUAL HEAT IN |
| CN110560450A (en) * | 2019-08-12 | 2019-12-13 | 中国环境保护集团有限公司 | method for efficiently and synergistically utilizing multiple perishable wastes in small-scale county areas as resources |
| CN112792088B (en) * | 2020-11-02 | 2023-08-08 | 深圳市朗坤环境集团股份有限公司 | Comprehensive utilization method of biomass in ecological environment garden |
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2003
- 2003-07-03 CN CNB031296912A patent/CN1290631C/en not_active Expired - Fee Related
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