CN102009057B - House refuse treatment method - Google Patents
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- CN102009057B CN102009057B CN2010102865718A CN201010286571A CN102009057B CN 102009057 B CN102009057 B CN 102009057B CN 2010102865718 A CN2010102865718 A CN 2010102865718A CN 201010286571 A CN201010286571 A CN 201010286571A CN 102009057 B CN102009057 B CN 102009057B
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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
- Y02E50/10—Biofuels, e.g. bio-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
- 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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Abstract
The invention discloses a house refuse treatment method, which comprises the following steps: crushing and fermenting refuse at normal pressure and under normal pressure; executing a screening process, crushing large or large-grain inorganic materials among oversize materials on a coarse screen, and making an urban coal material; coarsely screening, crushing stone and brick blocks among oversize materials on a medium screen, and making a roadbed material or pavior brick base material; making fertilizer by using organic materials or fermented products of the organic materials among the oversize materials and undersize materials of the medium screen and a fine screen, wherein materials with recycling value among magnetic materials screen out are sold directly, and materials without recycling value are collected and subjected to innocent treatment; and performing manual sorting, wherein materials with recycling value are directly sold. When the method is used for refuse treatment, the construction investment is small, the operation cost is low, the operation is simple, the treatment effect is desirable, and the resource recycling degree is high. The method can be widely used for treatment of refuse of different sizes and qualities without causing secondary pollution.
Description
Technical field
The present invention relates to a kind of waste disposal method.
Background technology
Because the restriction of national conditions and economic strength; The present house refuse of China particularly processing of municipal refuse mainly adopts simple stacking, sanitary landfills, burning and composting process to handle; Each repays these processing methods to some extent; But all having some problem and shortage, this is restricting the development of China's garbage disposal cause.
The stacking method is exactly to concentrate rubbish and piles garbage mountain or fill out ditch naturally, fill out the hole, is a kind of the most original, the conventional method of processing domestic waste.Though the simple and investment saving of this method, but floor space is big, seriously polluted.Rubbish very easily produces toxic liquid, through weathering, leaching, rainwash washed off soil, atmosphere pollution and water body; Can not only poison the microorganism in the soil with poison; And destroy the decomposition ability of soil, make soil lose primary productive force, heavy damage soil and groundwater resources.
Sanitary landfills is as the processing mode commonly used of garbage treatment, and key is rationally to utilize all the time to the efficient processing of oozing drop liquid with to landfill gas not solve.Since the sanitary filling field ubiquity environmental practice incomplete with end antiseepage, ooze the problem that draining processing, covering etc. do not reach national formulation standard; The result makes sanitary landfills not reach " innoxious " treatment requirement, causes sanitary filling field not " health ".The floor space that this mode exists is excessive, investment and production cost is higher, the strictness of production process management expectancy, the expedient property of result, to form secondary pollution and combustion explosion easily be its deadly defect, and it need be paid, and water and soil worsens, the territory is occupied, the heavy cost of the wasting of resources.Burning method is directly to burn loading in mixture fresh house refuse, utilizes heat energy power-generating.
Garbage incineration technology adopts foreign technology and equipment and grows up; The condition that exists of relying is the classificationization of house refuse; The maximization of economic cost and the intensification of construction scale, this condition is unapproachable with requiring in one of China quite long period.Under conventional garbage component and economic level, take the inevitable outcome of this mode to be; Produce secondary pollutions such as a large amount of pernicious gases such as dioxin and harmful clinker inevitably, with this a kind of pollution of rubbish be converted into another kind of even more serious, pollute more widely.Because of its investment and operation cost is too high, the heat energy utilization rate is too low, be easy to form secondary pollution, most cities are not dared to inquire.
Composting process is to rely on microorganisms such as the extensive bacterium that distributes of nature, actinomyces, fungi, under certain artificial condition, promotes the Biochemical processes that biodegradable organic matter transforms to stable humus.The direction of the method is correct, and easy and simple to handle, investment and operating cost are relatively low.But the outstanding problem that traditional compost exists is: technology falls behind, process route repeat loaded down with trivial details, the production cycle is oversize, floor space is excessive, fermented quality is unstable; Also have thing such as glass iron fourth to deal with improperly in the fertilizer; Have a strong impact on the fertilizer result of use, cause investment thus and production cost is bigger than normal, production marketing is smooth, land wastage is serious.
There is various shortcoming in above-mentioned different waste disposal method.In order to overcome above-mentioned shortcoming, processing method more advanced, effective, environmental protection that those skilled in the art have invented.On October 1st, 2008, publication number was that 101274331 Chinese patent discloses a kind of life refuse processing method; Comprise the steps to handle: technical process such as sorting, organic matter high temperature and high pressure hydrolysis hydrothermal oxidization, organic matter composting, not recyclable type of combustible system fuel slug, inorganic matter system building materials, plastics granulation, Recyclable regeneration, exhaust-gas treatment, sewage disposal, heating power supply, this invention have that the land occupation area is little, the processing time lacks, avoid polluting, operating cost is low, effectively handle pernicious gas, the advantage of the product quality of producing height, environment-friendly high-efficiency.But that the sorting in this processing method is adopted is totally-enclosed, system is selected in mechanization, unmanned work point, and is regardless of level in sorting, and separating effect is bad, directly the quality of the finished product processed of influence back operation classification processing effect and different classes of rubbish.This invention has also adopted high temperature and high pressure hydrolysis hydrothermal oxidization system that the organic matter in the rubbish is degraded, and technology is complicated, and equipment requirements is high, and process conditions control difficulty is big.
On April 1st, 1998, publication number was that 1177525 Chinese invention patent discloses a kind of assembly compost, burning, landfill in the organic garbage of city system handles technology of one; Through sorting; Compost fermentation, the organic waste powder is produced, and composite fertilizer produces and burns; Processes such as inorganic refuse landfill or system building materials, the rubbish of will marching into the arena is all dissolved.But the aerobic fermentation technology that this invention is adopted will be carried out in the fermentation cabin of half-sealed, and adopts water-jet vacuum suction method to carry out aerobic fermentation, and this requirement to place and equipment is all higher, and the investment construction expense is higher, and operating cost is also higher.And also include the burning program in this processing procedure, can produce certain pollution.In addition, this processing method only is applicable to the processing of organic waste, can't handle the rubbish that loads in mixture, and uses not extensive.
Summary of the invention
The objective of the invention is to overcome the limitation and the defective of various waste disposal methods in the prior art; Is that master's actual state provides a kind of construction investment few according to the rubbish of China to load in mixture; Operating cost is low; Simple to operate, treatment effect good, the resource circulation utilization degree is high, can extensively be suitable for the garbage disposal of different scales, different rubbish qualities, and the waste disposal method of non-secondary pollution.
The objective of the invention is to realize like this:
Life refuse processing method of the present invention may further comprise the steps:
A, rubbish are at normal temperatures and pressures through broken, fermentation; Then,
B, process screening operation; Mode has gravity preparation, magnetic separation, artificial separation; Gravity preparation comprises scalping, middle sieve and dusting cover again, obtains the oversize and the screenings of scalping, middle sieve and dusting cover, after screening, from load in mixture rubbish, isolates organic matter, inorganic matter, magnetic material, organic fermentate; Then,
Big part or bulky grain inorganic matter through pulverizing, are processed city coal material in c, the scalping oversize; Stone fragment of brick in scalping, the middle sieve oversize is processed roadbed material or pavior brick base material after crushed.
The oversize of d, middle sieve and dusting cover and the organic matter in the screenings or organic fermentate carry out composting.
Have in the magnetic material of selecting after e, the screening and recycle the direct marketing that is worth, nothing is recycled putting together of being worth and is done harmless treatment;
F, the article direct marketing that recycle to be worth through having of artificial go-no-go.
As further improvement of the present invention, the organic matter in the oversize of middle sieve and dusting cover or organic fermentate adopt different composting operations with organic fermentate of the screenings of middle sieve and dusting cover.Because the organic matter in the oversize of middle sieve and dusting cover or organic fermentate mainly are made up of the organic matter of difficulty fermentation, organic fermentate that fermentation is not thorough or particle is big slightly (screenings of sieve and dusting cover relatively) and some dust, its organic components is impure, is not suitable for making meticulous fertilizer; Its composting process comprises: pulverize; Secondary fermentation, the detection of heavy metal substance is according to testing result decision composting proportioning use amount; Carry out quantitatively and mix, go out finished product through the composting system again.
Because the screenings of middle sieve and dusting cover is organic fermentate basically, and particle is very little, after deep processing, can be made into high-quality fertilizer, its composting process is: the detection of secondary fermentation, heavy metal substance; According to testing result decision composting proportioning use amount, abrasive dust adds nutrient; Mix granulation, oven dry; Cooling, grading is processed the compoiste fertilizer finished product.
As further improvement of the present invention, in order to improve the rate of recovery, increased the link that substandard products are reclaimed, promptly in the grading operation of said process, resulting a small amount of substandard products circulate after crushed to get into and add nutrient operation and later operation, accomplish composting.
As further improvement of the present invention, magnetic separation is arranged on oversize and the screenings place and the dusting cover screenings place of gained behind scalping, the middle sieve.Artificial go-on-go is arranged on the oversize and the screenings place of gained after the scalping.Make the efficient of screening high, effective like this, the streamline screening need not to intersect, repeat sorting, saves manpower, and it is reasonable, compact that screening plant and personnel distribute, and saves floor space.
As further improvement of the present invention, to new refuse open that bag is broken to carry out with deodorizing, spray wine biological inoculum and fermentation simultaneously, with the raising treatment effeciency.
The preparation method of city coal material can adopt hydraulic method.As further improvement of the present invention, the preparation method of city coal material comprises: add additive, bonding agent, fire retardant, and then through shaped by fluid pressure, demoulding, maintenance.This method can further improve the combustion value of city coal material.
The invention has the beneficial effects as follows:
One, the present invention has broken the traditional thinking and the method for operation, adopts open type aerobic fermentation and segmentation sieving technology, has both practiced thrift the place, has reduced power and manpower consumption, has reduced cost of investment, has improved ferment effect and screening quality again.
Two, the present invention has realized the purpose of harmless treatment.Entire process system sweat does not have the draining of oozing and produces no sewage permeation and the pollution that effluxes; To the pyroprocess of fermentate through fermentation and two links of composting, reached the sterilization purpose, the bio-feritlizer of being produced can be up to state standards fully; After inorganic matter sieves out through hot fermentation, production city coal on innoxious basis.
Three, the present invention has realized the purpose of resource circulation utilization.After adopting this method that house refuse is carried out classification processing, it is divided into four types of organic matters, inorganic matter, magnetic material, organic fermentate.For organic matter and organic fermentate; Because this method has been used bacterial classification and deodorization technology; Adopt biotechnology to manufacture biological organic complex fertilizer or biological organic fertilizer, or be sold to flower-grower, vegetable grower, orchard worker as soil conditioner; Being used for flowers. grain, fruit, vegetables produce, and make house refuse reach resource circulation utilization.For inorganic matter, after sieving out through hot fermentation, after crushed can be on innoxious basis production city coal, realize recycling; Magnetic material is sold as regenerated resources.After such integrated treatment, house refuse can realize the resource circulation utilization about 95%.
Four, this method can be according to each urban economy level, component of refuse with to garbage disposal result's demands of different; The garbage disposal scheme of design and construction different scales; And corresponding technology, complete set of equipments and technical guarantee are provided, greatly satisfy the different demands in large, medium and small city.
Five, the present invention has prevented secondary pollution effectively owing to can realize the resource circulation utilization about 95%.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is 1000 ton per day domestic rubbish disposal process charts.
The specific embodiment
The present invention realizes that construction investment is few, and the assurance that operating cost is low is embodied in the technological design aspect, comprise three do not repeat, do not intersect, part that separate and mutual streamline connects: fermentation plant, screen house, deep processing workshop.Thisly do not intersect, do not repeat to be connected, stopped repeated construction, reduced the construction area, avoided the duplication of labour, just practiced thrift manpower and power consumption in construction investment and the operating cost yet with streamline.This process using open type aerobic fermentation, the factory building of fermentation stage requires lower, and screen house and deep processing factory building are not had specific (special) requirements yet, and fermentation, screening part can be made simple and easy steel-structure factory building, have practiced thrift construction investment.
Innoxious assurance of the present invention is embodied in the elimination to poisonous and harmful substance, and the present invention adopts open type aerobic fermentation mode, guarantees that no percolate produces; Harmful bacteria is killed through fermentation (84 ℃), composting prebake (380 ℃), the fertile oven dry of particle (280 ℃) three links; Radioactive substance like battery, is aided with indivedual manual sorting's methods with powerful magnetic separation and solves in screening.
The assurance of resource circulation utilization of the present invention is embodied in adopts following processing method to three kinds of main matter after sieving by fermentation:
1, the fermentate under the middle dusting cover gets between tumbril behind broken processing and secondary fermentation once more, and oven dry and attrition process are equipped with the nitrogen that meets content requirement, phosphorus, potassium etc. and process the particle organic bio-fertilizer and sell, or sell with soil conditioner.
2, the waste or used plastics under the scalping, clothes etc. can be made city coal after broken processing, and can be the composting workshop through boiler combustion provides thermal source, also can sell, and reaches regeneration.
3, battery is left concentratedly in the magnetic material, send the industrial refuse landfill yard to handle.Other old metal can sell.
Is master's characteristics to China's rubbish to load in mixture, and main technical scheme through following several respects realizes its purpose among the present invention, and they mainly are:
1, the technology of house refuse biochemical treatment fermentation.
Is master's characteristics to China's rubbish to load in mixture, and house refuse is carried out fragmentation, mixing, loose and ventilation, evenly sprays into aerobic bacterial classification simultaneously, and rubbish is carried out maximized decrement and the fermentation of open type biology aerobic, reaches requirement innoxious, minimizing.
Advantages such as aerobic fermentation has fermentation temperature height, matrix complete decomposition, fermentation period is short, peculiar smell is little.Simultaneously, be the open type hot fermentation owing to what take, the large quantity of moisture that volatilized during the fermentation alleviates weight greatly, and water content reduces greatly, has done adequate preparation for guaranteeing screening quality and screening efficiency.
2, sorting consumer waste technology.
Unsettled situation adopts with mechanization, streamline branch and elects the main and auxiliary dual fail-safe screening classification schemes with the minute quantity artificial separation as to China's rubbish composition is complicated, guarantees screening effect.
3, magnetic material treatment technology.
But this type material mainly is the various metals of recycling and the heavy metal substances such as battery of no value.Metal capable of using is concentrated and is sold; The heavy metal substance centralized collection is handled.
4, organic fermentate treatment technology.
Organic fermentate has reached innoxious requirement through the high temperature biological fermentation process, can be used as the base-material of compoiste fertilizer, and production and processing becomes biological compound fertilizer; Also can sell to the peasant and make soil conditioner; Also can make the raw material of production mold pressing brick and clay brick.The design is according to local conditions; It is produced biological compound fertilizer; Be used for flowers, vegetables, fruit and grain-production, can solve the poor problem of local soil with organic matter like this, improve soil texture, significantly culture fertility; Improve the output of crops, particularly promote the qualities of fruit, vegetables, further promote the development of local rural economy and agriculture industrialization.
The present invention is carried out bright specifically below in conjunction with embodiment.This embodiment is 1000 ton per day life refuse processing methods, and technological process and concrete operations are following:
Put into rubbish bar heap after new refuse is marched into the arena, every heap is all put into the about 2.5m of bottom width, high about 1.5m, and the bar stack of the about 1m of top width, the space between bar and the bar is wide to be 2.5m, can supply the motor device walking.
Carry out fragmentation with broken car, separate, make outside rubbish is exposed to fully, be convenient to the fermentation of rubbish being used for poly-bag or other packing material and the rubbish of load garbage.Spray deodorant and bacterial classification carry out deodorizing and fermentation then, and this deodorant and bacterial classification are conventionally known to one of skill in the art, are the deodorant and the organic matter fermentation bacterial classification of routine.Bacterial classification and the proportioning (because of season with weather different change) of water by 1: 1000, every rubbish heap sprays proportioning bacterial classification 2000kg (comprising deodorant) approximately.According to the temperature-rise period of new refuse, sweat can be divided into three phases, i.e. initial period, hot stage and maturation stage.
Initial period: temperature is about and outdoor temperature is balanced, is prone to glucose, fat and the carbohydrate of degraded in mesophilic bacteria, actinomyces, saccharomycete and the fungi decomposing organic matter, decomposes the heat that is produced and impels the rising of bar stack temperature of charge.When temperature is raised to 50-60 ℃, then get into the second stage of rubbish fermentation process---hot stage.At this moment, a series of Thermophilic Bacteria are the substitute is in the microorganism of rubbish initial period meeting natural death, and its heat that growth produced further makes bar stack rubbish temperature rise to more than 72 ℃ again.In temperature was 60-78 ℃ rubbish, except that some pityrosporion ovales, all pathogenic microorganisms all can be dead in several hours.When organic matter had been degraded basically, Thermophilic Bacteria will stop growing owing to lacking suitable nutriment, and heat production also stops thereupon, and bar stack rubbish temperature will descend owing to heat radiation gradually.At this moment, the rubbish fermentation process just gets into the phase III---maturation stage.
In cooled rubbish, a series of new microorganisms (mainly being fungi and actinomyces) will grow by means of remaining organic matter (comprising the residual body of the bacterium that dies), finally accomplish sweat.Therefore, can think that sweat is exactly the process of bacterial growth, death; It also is the dynamic process that the rubbish temperature rises and descends.House refuse is through strain fermentation after 30 hours at normal temperatures; The rubbish heap internal temperature can rise to 40-45 ℃; Even it is higher; Can rise to more than 55-60 ℃ after 48 hours, be warmed up to and to carry out turning over for the second time cold about 65 degree, after 48 hours, turn over cold more once again to satisfy the needs of aerobic fermentation to oxygen.(northern area need prolong according to the weather condition fermentation time).
This moment, the volume of rubbish was condensed to 60% of original volume approximately; After counting 4 days from the fragmentation first time; Rubbish two heaps 50-200M is long with charging appliance are merged into a pile (confirming this length according to place or treatment scale); Form new bar windrow, new bar windrow turns over cool 1～2 time (humidity and temperature with rubbish are as the criterion) again, and aerobic fermentation is carried through to the end.The humidity of rubbish heap is along with sweat progressively reduces, and after turning over cold several times, along with decrease of temperature, its humidity is reduced to about 25～35% by original about 35～65%.With forklift next station to be sieved is arrived in the dumping of handling well then.
Can send into screening after the about 6-10 of the rubbish of marching into the arena in first day days and prepare station (according to the quality of rubbish, the volume of accumulation and decide), the additional at any time room of new refuse, formation moves in circles, the streamlined operation.
Get into screen house then, sieve.
House refuse after the fermentation is after series of selection such as scalping, middle sieve, dusting cover, magnetic separation (utilizing object deadweight, magneticaction principle) and artificial separation; From load in mixture rubbish, isolate plastics, battery, granular inorganic and organic fermentate etc., get into next link and carry out resource and utilize again.
Wherein, after scalping oversize process gravity and the magnetic separation, cloth of being selected and plastics bulky grain inorganic matter etc.; And the bulky grain inorganic matter that produces through the composting workshop, pulverize through disintegrating machine, get into batch bin; Add additive, bonding agent, fire retardant, then through shaped by fluid pressure, demoulding; Maintenance becomes city coal material.This city coal material can be the composting workshop through boiler combustion provides thermal source, also can sell.
The medium-and-large-sized stone fragment of brick of scalping oversize mixes with cement and curing agent after crushed, through compacting, becomes roadbed material or pavior brick base material.
Middle sieve oversize is after magnetic separation and weight sorting, and screenings can be done the fertilizer base fertilizer through crusher in crushing, and oversize can be pulverized together with the stone in the scalping and do roadbed material and pavior brick base material.
Dusting cover oversize and screenings are organic fermentate, can all make the fertilizer goods, materials and equipments.
The iron block that magnetic separation is selected, iron wire etc. have the article direct marketing of the value utilized, and the rubber of artificial go-no-go etc. have the article of the value utilized also to concentrate recovery to sell; And also concentrate recovery through battery and other the magnetic article that do not have the value recycled elected after the powerful magnetic separation, do harmless treatment by the national regulation requirement.
After crushed, the dusting cover oversize gets into the composting workshop and carries out secondary fermentation; And carry out the detection of materials such as heavy metal; According to testing result decision composting proportioning use amount, quantitatively reach stirring and go out through the composting system again that finished product is packed and the sale of product.
The material of dusting cover screenings then directly got into the secondary aerobic fermentation after 15 days, cooled to below 20 degree, and humidity is lower than 25 degree; And carry out the detection of materials such as heavy metal, according to testing result decision composting proportioning use amount, get into the organic fertilizer production line; Add total nutrient by different fertilizer demands; Through stirring and the automatic ration feeding system adds nutrient, mainly contain nitrogen, potassium, phosphorus etc. then, stir with mixing and carry out granulation again.Pass through the cooling of drying system drying (baking temperature is controlled at about 380 ℃) and cooling system then, after different granularities was carried out classification, the gained finished product measured and packs, and became the commodity compoiste fertilizer.The gained substandard products reclaim and pulverize and add nutrient again, and granulation is to processing finished product again.
The plumbing of above-mentioned treatment system is designed to the destructor plant domestic water and directly connects running water, and industrial water adopts homemade well to supply water.The percolate sewage that plant area does not have rubbish produces and discharging, and the discharging of natural precipitation is employed in the method that plant area's main pipe is provided with drainpipe (ditch), drains into gutter outside the factory with major trunk roads.Water reuse standard during sanitary sewage reaches after environmental protection treatment is used to clean ground and plant area greening usefulness, makes it to reach ecological circulation.
In the foregoing description to the opening operations such as bag fragmentation, fermentation, screening and all can adopt prior art of new refuse, do not limit especially.Wherein open bag fragmentation and can use machinery, also can end user's construction method, the preferred mechanical method.Spray deodorant and bacterial classification can use mechanical system; Also can end user's construction method, preferred mechanical mode, in order to raise the efficiency, can be after opening bag fragmentation spray deodorant and bacterial classification immediately; Can disintegrating apparatus and sprinkling equipment be loaded in same the equipment particularly; Fragmentation, fermentation are carried out simultaneously, to realize that the broken sweathouse interval short, the purpose of raising the efficiency.
In order to make screening effect good, can magnetic separation and artificial separation be set in different phase.Magnetic separation can be arranged on oversize and the screenings place and the dusting cover screenings place of gained behind scalping, the middle sieve, and artificial go-on-go can be arranged on the oversize and the screenings place of gained after the scalping.After repeatedly magnetic separation and artificial separation; Guaranteed the classifying quality in a whole set of method; Especially having guaranteed to produce in organic matter or the organic fermentate of fertilizer does not have magnetic material, does not particularly have contaminated articles such as battery, thus the quality of the finished product fertilizers that has guaranteed to make.
The technology of utilizing inorganic matter in the rubbish to process city coal material is conventionally known to one of skill in the art, uses hydraulic method promptly to can be made into usually.In order to improve the combustion value of this city coal material, can adopt to add additive, bonding agent, fire retardant, then through shaped by fluid pressure, demoulding, the method for maintenance is processed.
The routine techniques of composting is conventionally known to one of skill in the art among the present invention, not special restriction.If process biological organic fertilizer, can in the composting process, add bacterial classification, see among Fig. 1 in, the composting flow process of dusting cover screenings.
It below is effect assessment of the present invention.
The disposal ability and the technical standard of the domestic rubbish disposal factory that builds up with method of the present invention:
Design scale: 300-1000 ton per day
Comprehensive garbage disposal utilization rate: 95%
Fermentation time: 6-10 days
Percolate: no percolate discharging
The derived product quality meets: national sector standard
Environment of the present invention and social benefit:
The environment of garbage disposal and social benefit are conspicuous.Embody a concentrated expression of: more U.S.A that the city is become.2, can avoid garbage leachate to phreatic pollution, preserve the ecological environment.3, can drive the development of green agriculture through garbage disposal.4, can industry restructuring, for society provides more job opportunity.This technology is seeing the following form with the data contrast of burning, sanitary landfills, composting mode aspect environment and the social benefit:
(1000T/ day, cycle 20 years)
Economic benefit of the present invention:
Comprise three aspects, promptly relatively reaching the benefit evaluation under the different territorial environments of this technology self, the organization and administration mode on the comparison in the construction investment, the operating cost with other technologies.In construction investment, this process unit is 1: 4: 2 with the ratio of burning electricity generation, sanitary landfills, storehouse formula zymotechnique: 2; Ratio on operating cost is 1: 3: 1.5: 1.5.
Following table is for the present invention and national standard and related example is social at environment and the contrast table of economic benefit
Claims (9)
1. life refuse processing method may further comprise the steps:
Put into rubbish bar heap after a, new refuse are marched into the arena, every heap is all put into the about 2.5m of bottom width, high about 1.5m, and the bar stack of the about 1m of top width, the space between bar and the bar is wide to be 2.5m, walks for motor device; Rubbish is at normal temperatures and pressures through broken, fermentation; Wherein: said fermentation is an open type aerobic fermentation mode;
B, process screening operation; Mode has gravity preparation, magnetic separation, artificial separation; Gravity preparation comprises scalping, middle sieve and dusting cover again, obtains the oversize and the screenings of scalping, middle sieve and dusting cover, after screening, from load in mixture rubbish, isolates organic matter, inorganic matter, magnetic material, organic fermentate; Then,
Bulky grain inorganic matter in c, the scalping oversize through pulverizing, is processed city coal material; Stone fragment of brick in scalping, the middle sieve oversize is processed roadbed material or pavior brick base material after crushed;
The oversize of d, middle sieve and dusting cover and the organic matter in the screenings or organic fermentate carry out composting;
Have in the magnetic material of selecting after e, the screening and recycle the direct marketing that is worth, nothing is recycled putting together of being worth and is done harmless treatment;
F, the article direct marketing that recycle to be worth through having of artificial go-no-go.
2. waste disposal method according to claim 1; It is characterized in that: the composting process of the organic matter in the oversize of middle sieve and dusting cover or organic fermentate comprises following operation: pulverize; Secondary fermentation, the detection of heavy metal substance is according to testing result decision composting proportioning use amount; Carry out quantitatively and mix, go out finished product through the composting system again.
3. waste disposal method according to claim 1 and 2 is characterized in that: the composting of organic fermentate of middle sieve and dusting cover screenings is the deep processing composting, comprises following operation: the detection of secondary fermentation, heavy metal substance; According to testing result decision composting proportioning use amount, abrasive dust adds nutrient; Mix granulation, oven dry; Cooling, grading is processed the compoiste fertilizer finished product.
4. waste disposal method according to claim 3 is characterized in that: a small amount of substandard products that obtain after the grading circulate after crushed to get into and add nutrient operation and later operation, accomplish composting.
5. waste disposal method according to claim 1 is characterized in that: magnetic separation is arranged on oversize and the screenings place and the dusting cover screenings place of gained behind scalping, the middle sieve.
6. waste disposal method according to claim 1 is characterized in that: artificial go-on-go is arranged on the oversize and the screenings place of gained after the scalping.
7. waste disposal method according to claim 1 is characterized in that: opening bag fragmentation and deodorizing, sprinkling biological inoculum and fermenting of new refuse carried out simultaneously.
8. waste disposal method according to claim 1 is characterized in that: the preparation method of city coal material adopts hydraulic method.
9. waste disposal method according to claim 1 is characterized in that: the preparation method of city coal material comprises: add additive, bonding agent, fire retardant, and then through shaped by fluid pressure, demoulding, maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102865718A CN102009057B (en) | 2010-09-16 | 2010-09-16 | House refuse treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102865718A CN102009057B (en) | 2010-09-16 | 2010-09-16 | House refuse treatment method |
Publications (2)
| Publication Number | Publication Date |
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| CN102009057A CN102009057A (en) | 2011-04-13 |
| CN102009057B true CN102009057B (en) | 2012-12-12 |
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| CN102921701A (en) * | 2012-10-31 | 2013-02-13 | 刘昆 | Kitchen waste comprehensive treatment method and system |
| CN103331291A (en) * | 2013-07-02 | 2013-10-02 | 乌海市永泉环保建材有限责任公司 | Industrial solid waste treatment method |
| CN103706615B (en) * | 2013-12-19 | 2016-03-02 | 北京蓝天高兆环保科技有限公司 | One way of life refuse disposal system and method |
| CN103846271A (en) * | 2014-01-14 | 2014-06-11 | 鄂尔多斯市城市矿产研究开发有限责任公司 | Municipal solid waste combined anaerobic fermentation production process |
| CN104028540B (en) * | 2014-06-19 | 2016-07-06 | 国网四川省电力公司成都市新都供电分公司 | A kind of power station aseptic combustion power generation system of garbage on water |
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| CN104725087A (en) * | 2015-01-30 | 2015-06-24 | 上海胜维有机肥有限公司 | Environment-friendly and harmless novel technology for producing organic fertilizers by utilizing agricultural wastes |
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| CN109111256A (en) * | 2018-09-29 | 2019-01-01 | 北京城市矿产资源开发有限公司 | Microbial biomass can convert superhigh temperature fermentation process |
| WO2020259114A1 (en) * | 2019-06-25 | 2020-12-30 | 青岛海鲸环境科技有限公司 | Garbage recycling treatment device |
| CN110357677A (en) * | 2019-08-27 | 2019-10-22 | 清尘环保技术有限公司 | Kitchen garbage fast composting method |
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