CN101274331B - House refuse treatment method - Google Patents
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- CN101274331B CN101274331B CN2007100390197A CN200710039019A CN101274331B CN 101274331 B CN101274331 B CN 101274331B CN 2007100390197 A CN2007100390197 A CN 2007100390197A CN 200710039019 A CN200710039019 A CN 200710039019A CN 101274331 B CN101274331 B CN 101274331B
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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
-
- 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
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
- Y02T50/678—Aviation using fuels of non-fossil origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a household garbage processing method, comprising the following processing steps which are technique process of sorting, high-temperature and high-pressure hydrolysis and hydrothermal oxidation of organic substances, composting with organic substances, fuel brick production with non-recoverable and combustible substances, building material production with inorganic substances, plastic grain production, recyclable substances recycling, waste gas processing, sewage water processing and thermal power supply, etc. The household garbage processing method of the invention has the advantages of occupying little land area and having short processing time, pollution avoidance, low running cost, effective processing of noxious gas, high product quality, high-efficiency and environmental protection, and can be widely used for the processing of household garbage in various regions.
Description
Technical field
The present invention relates to the one way of life waste disposal method, relate in particular to a kind of rapid, innoxious, without the Prediction for Solid Waste Treatment Technology of residueization, resource circulation utilization, industrialization.
Background technology
According to statistics, China has 2/3 city to be absorbed in the predicament of garbage-surrounded city at present approximately.China is 1.5 hundred million tons nearby of the annual productions of domestic waste only, and these domestic waste overwhelming majority are air storages.It not only affects urban look, has polluted simultaneously and the vital atmosphere of our life, water and soil, and town dweller's health is consisted of very large threat, and rubbish has become in urban development, the social progress process one very thorny problem.And improving constantly along with living standards of the people, the quantity that house refuse produces is increasing, growth rate more and more faster (speed increment with annual 6%), composition becomes increasingly complex, the harm of bringing for the people's life is also more and more serious, and this has been the beyond dispute fact.
At present, domestic garbage disposal does not also have a kind of good solution.That now generally adopts has three kinds of methods: the one, and landfill; The 2nd, burn and burning electricity generation; The 3rd, compost.Now make a concrete analysis of as follows:
First method: landfill; Adopt at present maximum waste disposal methods.This method seems simply, but harm is very large.Its shortcoming is:
(1) floor space is large, service time is short (about general ten years), holding time long (can't recycle in 100 years);
(2) rubbish behind the landfill causes severe contamination to soil, underground water, atmosphere, and its reality harm and potential hazard are especially in continuous increase.
(3) garbage loading embeading has caused the serious waste of resource.
The waste disposal method of this landfill be a kind of helpless, do not have the processing method processed.We have progressively recognized the seriousness of problem, have many places all seeking active and effective waste disposal method.
Second method: burn and burning electricity generation.This method surface seems minimizing and the resource that has realized garbage disposal, but investigates China is built and go into operation burning or burning electricity generation destructor plant, will find that this processing method also is a kind of processing method that loses more than gain in fact.
(1) as if at first see its minimizing, the waste incineration decrement has been seen 50%～60% in the surface, but in fact remaining 40%～50% slag still needs to process again, still will go to follow the track of an overturned cart of burying method, the underground water and soil of recontamination again;
(2) see again its resource, directly burn and just need not say, because this method just do not realize resource more not realizing industrialization at all, the valuable resource that has been serious waste on the contrary.We singly say the resource of waste incineration and generating electricity at this, and this Technology origin is in abroad, and technology is comparative maturity also, but after introducing China, because operating cost is expensive, government finance is unable to be born, the landfill of being obliged to go again at last after many local operations.Its main cause is that the component of refuse of China is complicated, calorific value is low, moisture is large, causes incinerator to work.Want so normal operation, just necessary coal or oil spout have just increased operating cost so virtually, make to drop into to be far longer than output.And if the calorific value organic matter low, that moisture is large that accounts for rubbish total amount 50%～60% is separated compost, light burns high heating value rubbish, but of poor quality because of composting production, not welcome by the peasant, does not have market prospects, causes the organic matter secondary to stack and pollutes.
(3) in addition, burn and the burning electricity generation technology in Refuse Incineration Process, the toxic gas that discharges, such as the mercuryvapour in dioxin, the battery etc., the severe contamination atmosphere is processed this type of toxic gas, operating cost is very expensive again, does not tally with the national condition.So in the long term, this method does not meet innoxious, the resource of garbage disposal, the industrialization policy direction of country yet.
The third is compost, and the method has small investment, easy-operating advantage.But exist shortcoming:
(1) the rotten time of organic matter heap long, generally need three thoughtful one month, pile up seriously pollutedly, fly, mosquito multiply, the severe contamination surrounding enviroment are brought very big hidden danger to local health and epidemic prevention.
(2) organic matter degradation is not thorough, processes insufficiently, and residue still can cause refuse pollution.
(3) organic matter composting production impurity is many, and can not effective separation to harmful substances such as heavy metals, uses for a long time composting production, can cause the soil surface deposition, spoiled soil, harms the crops.
(4) in the composting process, most of nitrogen nutritions are by Spontaneous release, and the compounds such as phosphorus, potassium are by natural degradation, so cause fertilizer quality low, vast farmers is reluctant to make inquiries, and market prospects are remote.
In sum, the present Prediction for Solid Waste Treatment Technology of China is in low level substantially, is difficult to realize innoxious, the resource of garbage disposal, let alone industrialization.
Summary of the invention
Technical problem solved by the invention is the defective that overcomes prior art, provide that a kind of land occupation area is little, the processing time is short, avoid polluting, operating cost is low, effectively process pernicious gas, the institute's product quality of producing height, without the life refuse processing method of residue, non-secondary pollution, complete resource, thorough industrialization.
For solving the problems of the technologies described above, the invention provides the one way of life waste disposal method, comprise the steps to process:
Step 10: refuse classification, garbage raw material through roughly select, after the magnetic separation, selection by winnowing, wet concentration, sub-elect bulk inorganic matter, fritter inorganic matter, ferromagnetic, battery class rubbish, dust class rubbish, organic matter, not recyclable class combustible, plastic film class light refuse, and the above-mentioned material that sorts out is done respectively following processing;
Step 20: organic matter high temperature and high pressure hydrolysis hydrothermal oxidization is processed, and comprises the organic matter that will sub-elect, and through acid treatment, then preheating is heated to 150 ℃～200 ℃ and is forced into 8～12Mpa, and pressurize 1.5-2 hour, through expanding treatment, drying, broken, screening is processed;
Step 30: the organic matter composting, with the organic matter after the degraded, through neutralization, batching, granulation, oven dry, make fertilizer; Or semiorganic compound fertilizer; Perhaps through neutralization, the fermentation that spreads cultivation, adding flora, fermentation, make biological organic fertilizer;
Step 40: combustible fuel made piece, with the not recyclable class combustible that sub-elects, after crushed, allocate additive, bonding agent and combustion adjuvant into, by weight 5: 1: 0.5: 0.1 ratio was mixed, and makes the solid refuse fuel slug;
Step 50: inorganic matter is made curing porous brick and concrete clamp dog, and the bulk inorganic matter that sub-elects, fritter inorganic matter after fragmentation, are mixed with cement and curing agent, and repressed forming machine is pressed into curing porous brick or other building materials.
Step 60: behind wet concentration, broken, dehydration enters plastics and granulates machine-processed with plastic film class light refuse, and sediment and filter mud are made high efficiency ecological organic fertilizer through the hydrolysis water thermal oxide;
Step 70: through ferromagnetic, the battery class rubbish that separation system sub-elects, ferromagnetic class rubbish is directly delivered to the salvage station and is recycled; Battery send professional treatment factory.
Step 80: exhaust-gas treatment, refuse classification, the therrmodynamic system operation, the waste gas that produces in the hydrolysis water thermal oxide still course of work, delivering to exhaust gas washing tower after collecting processes, eliminate flue dust and pernicious gas, waste gas enters waste gas moisture film scrubbing tower from exhaust gas washing tower bottom tangent direction, a large amount of flue dust is thrown toward the tower wall in the waste gas, and by along under the dirty moisture film band of wall, high pressure pipe pump sprays into milk of lime in the waste gas moisture film scrubbing tower from waste gas moisture film scrubbing tower top, when waste gas when the waste gas moisture film column plate of washing column and the moisture film counter current contacting, make between the gas-liquid and fully mix, and continuity a period of time, flue dust in the waste gas and the emulsion in harmful components and the moisture film are reacted, generate solid-state reactants, with current whereabouts settling tank, waste gas moisture film scrubbing tower tail gas outlet conduit is provided with the active carbon adsorption retracting device, the poisonous danger in the absorption tail gas;
Step 90: sewage disposal through anoxic pond, contact-oxidation pool, decolouring oxidation processes, makes sewage reach discharge standard.
Wherein, said hydrolyzed hydrothermal oxidization still, material drier provide the equipment of heat energy to comprise superheated steam boiler, hot-blast stove, hot-air storage tank, air compressor, compressed air reservoir.
Because adopt above-mentioned technical scheme, the present invention has following beneficial effect:
1, quick: went out product in three hours, the same day rubbish, processed the same day, it is day clear to reach daily output.
2, harmless: totally-enclosed operation, so excessive without foul smell; Burn without plastics, so generate without harmful exhaust; Organic matter high temperature and high pressure hydrolysis hydrothermal oxidization is processed, so sterilization thoroughly; Process fast, percolate produces and produces less or not percolate.
3, without residue: all rubbish are all recycling, process thoroughly.
4, strong adaptability: be applicable to house refuse, building waste, medical waste, fowl and raise disease corpse, food service industry discarded object, agricultural wastes.
5, floor space is little: the sixth that is composting process.
6, operating cost is low: be 1/4th of burning method.
7, hydrolysis water thermal oxidation technique high efficiency ecological organic fertilizer market prospects are good: green product must be used fertilizer.
8, equipment is advanced: failure rate is low, result of use is good, is particularly suitable for the processing of China's actual conditions domestic waste.
9, good in economic efficiency, output is much larger than input.
Description of drawings
Fig. 1 is the total technological process schematic diagram of life refuse processing method of the present invention;
Fig. 2 is not recyclable class combustible of the present invention fuel slug system process processed schematic diagram;
Fig. 3 is inorganic matter of the present invention building materials process system processed schematic flow sheet;
Fig. 4 is exhaust treatment system process flow diagram of the present invention;
Fig. 5 is sewage disposal system process flow diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment is illustrated:
To shown in Figure 5, the processing method concrete technology step of house refuse of the present invention is as follows such as Fig. 1:
1, totally-enclosed, mechanization, prosthetic separation system (selection by winnowing adds wet concentration):
House refuse is transported into through cram packer, cram packer enters between the garbage truck carrousel after weighbridge is overweight, refuse-unloading on oscillating grid, after oscillating grid is roughly selected, is selected Bulky Waste (particle diameter is greater than 400mm), whereabouts Bulky Waste disintegrating machine, rubbish is after the magnetic separation of permanent magnetic roll assembly of roll magnetic separator conveyer after broken, and the ferromagnetic whereabouts reclaims warehouse, all the other broken thing whereabouts garbage bag breaking disintegrating machines, after fragmentation again, operation is participated in selection by winnowing under the whereabouts; All the other rubbish after oscillating grid is roughly selected all fall to and are installed on the middle drag conveyor in the temporary hole of rubbish, percolate drops to percolate storage hole naturally through the orifice plate of drag conveyor, through measuring pump whereabouts hydrolysis water thermal oxide still, efficient organic fertilizer processed after the innoxious concentration.All the other rubbish are after the magnetic separation of drag conveyor whereabouts permanent magnetic roll assembly of roll magnetic separator conveyer, and the ferromagnetic whereabouts reclaims warehouse (battery class rubbish in this sorting part out), residual refuse whereabouts garbage bag breaking machine.
The Domestic garbage bag-breaking disintegrating machine breaks the domestic waste packaging bag automatically, bulk organic matter automatic pulverizing, and make inorganic matter class refuse breaking rate drop to minimum.Through garbage bag breaking disintegrating machine broken bag, composting after the fragmentation, after the magnetic separation of permanent magnetic roll assembly of roll magnetic separator conveyer secondary, the ferromagnetic whereabouts reclaims the warehouse, all the other rubbish whereabouts domestic waste integrative fanning machines, this machine can divide domestic waste to be elected as: the bulk inorganic matter, the fritter inorganic matter, ferromagnetic, dust class rubbish, organic matter, not recyclable class combustible, plastic film class light refuses etc. are (very thin such as the need classification, can increase electrostatic separator, eddy current separator, with the non-ferrous metal of sneaking in the inorganic matter rubbish, sneak into the battery in the ferromagnetic rubbish, the paper of sneaking in the Plastic light refuse is separated automatically, but do not meet China's actual conditions, present technique will not adopt).Process separately the workshop through sorted other rubbish of domestic waste integrative fanning machine through the conveyer whereabouts; Plastic light refuse whereabouts wet concentration workshop, the plastic film rubbish whereabouts plastics granulation workshop after wet concentration, fragmentation, cleaning, drying; All the other rubbish whereabouts hydrolysis water thermal oxide stills high efficiency ecological organic fertilizer processed behind the wet concentration; Sewage whereabouts our factory Sewage Disposal, mud whereabouts high temperature and high pressure hydrolysis hydrothermal oxidization still is processed rear high efficiency ecological organic fertilizer processed after treatment; Sewage after the processing is used for greening, mill floor cleans and the wet concentration of plastic film class light refuse, and the water resource permanent loops is used, and reaches sewage zero-discharge.
2, organic matter high temperature and high pressure hydrolysis hydrothermal oxidization system:
The organic matter that integrative fanning machine sorts out is delivered to the organic matter feed bin through belt conveyor.When material enters feed bin, the ratio of 10-15% concentration diluted acid in material butt weight 1-1.5% sprayed into simultaneously, material is fully mixed with diluted acid, open simultaneously heat-riser valve, utilize boiler exhaust gas or hydrolysis water thermal oxide still used heat to make the abundant preheating of material.Organic matter after the preheating, sprays into the ratio of 15% concentration diluted acid in material butt weight 2% when material enters hydrolysis water thermal oxide still simultaneously through discharging machine, elevator whereabouts hydrolysis water thermal oxide still.When volume of material reaches hydrolysis water thermal oxide still volume 90%, close feeder and all valves, open the superheated steam valve from superheated steam boiler, when hydrolysis water thermal oxide temperature in the kettle reaches 150 ℃～200 ℃, when the still internal pressure reaches 8～12Mpa, close all valves, pressurize reaction 2 hours.The pressurize reaction is in the time of 60 minutes, open the mulse valve, mulse in the hydrolysis water thermal oxide still is released, and (part mulse whereabouts rubbish is kept in the workshop to the mulse collecting tank, uses as deodorant, all the other mulses after concentrated, direct liquid fertilizer processed after whereabouts composting workshop composting or the batching).After finishing, the pressurize reaction opens relief valve, make the pressure release of still internal pressure to another hydrolysis water thermal oxide still (heat energy recycling), when still internal pressure pressure release during to 0.5Mpa, close relief valve, open the hot-blast valve from the hot-air storage tank, open the air bleeding valve of hydrolysis hydrothermal oxidization still, (behind the waste gas whereabouts organic matter feed bin absorption waste heat, the whereabouts exhaust gas washing tower) work is after one hour, make when material moisture reaches 35%～40% in the still, close all valves, pressurize 0.5Mpa, then open fast hydrolysis hydrothermal oxidization still blow-off valve, make the quick-fried extremely expanded filling of material moment spray and fully expanded (this moment, material moisture should be 30%～35%, and portion of water has been converted into water smoke whereabouts exhaust gas washing tower in the material puffing process) in the hydrolysis water thermal oxide still.Material after expanded is through puff discharging machine, puff elevator whereabouts puff feed bin, through discharging machine whereabouts band drier (belt drying tail gas whereabouts exhaust gas washing tower process up to standard after emptying).Dried material is through elevator whereabouts dried material storehouse, through discharging machine whereabouts disintegrating machine, this machine with the dried material of all dried materials and part caking, not thoroughly the wooden organic matter of bulk class of slaking break up, after the fragmentation, whereabouts dried material screening machine.Fritter inorganic matter, hard organic matter, part that the dried material screening machine is sneaked into part in the organic matter are sneaked into separating through the glomerate Plastic rubbish of hydrolysis water thermal oxide still bunching in the organic matter, whereabouts oversize feed bin is through discharging machine whereabouts RDF fuel slug workshop.Screenings drops on down the undersize material storehouse naturally, carries out deep processing (screenings of this moment can have been done pure high efficiency ecological organic fertilizer and directly use, and total nutrient can reach 5%～8%) through discharging machine whereabouts composting workshop.
3, organic matter fertilizer producing system;
Organic matter after this degraded through " neutralization " operation, makes its pH value transfer to 6.2～7.5, then use electronic weighing system, automatically allocate the needed nitrogen of crop growth, phosphorus, potassium nutrition and middle trace element into, and through science granulation and low temperature drying, finally make high nutrient compoiste fertilizer.If make biological organic fertilizer, after " neutralization " operation, increase the fermentation procedure that spreads cultivation, in organic matter, add special bacterial colony, make organic matter at proper temperature and humidity bottom fermentation, and finally make biological organic fertilizer.
4, not recyclable class combustible fuel slug processed system;
The high heating value combustible that sub-elects, such as bamboo and wood products, rigid plastics, scrap rubber, duds thing and other combustible, after crushed, allocate additive, bonding agent and the combustion adjuvant that can suppress and adsorb chloride, prevent the dioxin generation into, mix by a certain percentage, make a kind of high heating value solid refuse fuel slug.Because additive has special suction-operated to the Hce gas that produces in the combustible combustion process, so, effectively suppressed the generation of " dioxin " class pernicious gas, reduced widely the processing cost to tail gas.
5, inorganic matter building materials processed system;
The inorganic matter rubbish that sub-elects through integrative fanning machine is used for brickmaking, produces 500 * 500mm following curing porous brick and concrete clamp dog.Inorganic matter in the rubbish mixes with cement and curing agent after fragmentation, and repressed forming machine is pressed into and solidifies the rubbish porous brick, can pass through piling, and maintenance 24h through after the assay was approved, can dispatch from the factory under field conditions (factors).
6, plastics granulating system;
Through integrative fanning machine sub-elect take film class plastics as main lightweight class rubbish, be mixed with a small amount of paper and leaf etc.After entering the wet concentration pond, after rubbing implement is washed by rubbing with the hands, enter settling tank, all the other rubbish because of wash by rubbing with the hands broken after moisture absorption, its proportion is changed, be deposited in the pond, the bottom, film class plastics do not change because of its proportion, still swim in the water surface.Because flowing before the rubbing implement rotation drive current direction, film class plastics also along with mobile forward, put plastics and pull machine out by the wet concentration trough rim, makes plastics with other foreign material separately.Other foreign material, paper, leaf sink in water, sink in the hopper of wet concentration pond, the bottom, are transported to pallet conveyer by spiral discharging device, to hydrolysis water thermal oxide still high efficiency ecological organic fertilizer processed; The plastics of pulling out have also obtained most of cleaning at this moment.The plastic conveying and plastic of pulling out is carried out fragmentation and thoroughly cleaning to the disintegrating washing machine in plastics recovery granulation workshop.After the cleaning, enter plastic dehydrator.Plastics after the dehydration enter plastics and granulate machine-processed.Recycle after the rinse water purified treatment.Sediment and filter mud whereabouts hydrolysis water thermal oxide workshop high efficiency ecological organic fertilizer processed.
7, Recyclable regeneration application system;
Through ferromagnetic, the battery class rubbish that separation system sub-elects, ferromagnetic class rubbish is directly delivered to the salvage station and is recycled; Battery class rubbish is little because measuring, and is temporary in the our factory, collect some after, send professional old and useless battery treatment factory and office reason.
8, therrmodynamic system;
Therrmodynamic system is mainly hydrolysis water thermal oxide still, material drier provides heat energy, and its capital equipment comprises superheated vapor boiler, hot-blast stove, hot-air storage tank, air compressor, compressed air reservoir etc.
9, exhaust treatment system;
The waste gas that produces in refuse classification, therrmodynamic system operation, the hydrolysis water thermal oxide still course of work is delivered to exhaust gas washing tower and is processed after collecting, eliminate flue dust and pernicious gas.Waste gas enters waste gas moisture film scrubbing tower from exhaust gas washing tower bottom tangent direction, and a large amount of flue dust is thrown toward the tower wall in the waste gas, and by along under the dirty moisture film band of wall.High pressure pipe pump sprays into emulsion in the waste gas moisture film scrubbing tower from waste gas moisture film scrubbing tower top, when waste gas when the waste gas moisture film column plate of washing column and the moisture film counter current contacting, make between the gas-liquid and fully mix, and continuity a period of time, make flue dust in the waste gas and the emulsion generation chemical reaction in harmful components and the moisture film, generate solid-state reactants, with current whereabouts settling tank.Waste gas moisture film scrubbing tower tail gas outlet conduit is provided with the active carbon adsorption retracting device, and the poisonous danger in the absorption tail gas is up to state standards to guarantee exhaust emissions.
10, sewage disposal system:
This process selection is comparatively ripe, and the technique that reliably " A/O "+decolouring oxide compound formula is processed is namely filtered, and the absorption salvo can the stably reaching standard discharging.Be described as follows:
A, pre-exposure regulating reservoir
Sewage enters regulating reservoir through behind the thickness grid, and in the pond, carry out water quality, the water yield regulates, and guarantees to enter biochemical system water quality, the water yield is stable.Sewage will balancedly be sent into the postorder treatment facility by the sewage drainage pipe.
Establish preaerator in the regulating reservoir, can play organic matter in the preliminary degradation water, can prevent again the heavy general of foreign material in the sewage, silt up.
B, anoxic pond (A level)
Regulating reservoir sewage is promoted by pump and enters anoxic pond, and the sewage in the anoxic pond carries out the anoxic denitrification reaction.Sewage is decomposed into ammonia nitrogen with the organic nitrogen in the sewage under the effect of anaerobe, adopting simultaneously organic carbon source is electron donor, makes nitrous acid nitrogen, nitrate nitrogen be converted into nitrogen, and utilizes partial organic substances and the synthetic new cellular material of ammonia nitrogen.
C, contact-oxidation pool (O level)
Most of organic matter in the sewage obtains degraded and purification at this, and aerobic bacteria utilizes the organic matter in the sewage to be foodstuff take filler as carrier, the organic substance decomposing in the sewage is become inorganic salts, thereby reach the purpose of purification.
D, decolouring oxidation
After waste water enters oxidation pond, constantly chlorine dioxide is mixed with sewage by aeration tube at this, chlorine dioxide concentration constantly increases, oxidability constantly strengthens, colourity constantly reduces, macromolecule constantly be decomposed, degrade most COD cr, BOD5 and SS, the NH4-N in the waste water also descends to some extent simultaneously.The oxidation tank water outlet is together with residual suspension and the biomembrane that comes off, sedimentation basin precipitates, strap filters jointly to enter after the mixing of dosing flocculation pipeline, further decolour and clarification filtration by biological decolouring charcoal filter tank again, guarantee out water colour and every pollutant emission index qualified discharge.
E, cloth bag type filter
The oxidation pond water outlet is flocculated through dosing, by being pumped into the cloth bag type filter, carries out Separation of Solid and Liquid again, removes biomembrane and other impurity of peeling off.
F, biological carbon filter
The biological carbon filter is the sewage disposal technology that the physical absorption of activated carbon and microbial biochemical effect are combined, and the materialization absorption of activated carbon and charcoal top layer biological oxidation is decomposed, both synergies.Activated carbon surface has a large amount of micropores, and good adsorption and enrichment performance is arranged, and microorganism is attached to charcoal layer surface easily.Under suitable condition, microorganism is bred growth, and surperficial at carbon granule with certain grown in thickness, for microorganism provides abundant nutrition and oxygen, pass through biochemical action, microorganism secretion goes out ectoenzyme, diffuse into the reaction of carbon granule micropore and adsorbing base, the organic matter that is adsorbed by charcoal is constantly degraded, microorganism again continuous metabolic charcoal layer itself is surperficial, and adsorb organic compound limit, charcoal limit organic matter is biodegradable again absorption---desorption process, makes the adsorption capacity of charcoal obtain the part recovery, it is certain active that charcoal can keep, and prolonged the action period of charcoal.Establish gas distribution pipe in the charcoal filter, send into the air oxygenation by blower fan.
So the biological carbon filter can further be removed the organic matter in the sewage, and can remove stink and peculiar smell in the water.The recoil of biological carbon filter effluent recycling to regulating reservoir alive is processed again.
G, sludge-tank
Mud under the sedimentation of cloth bag type filter through the cleaning after to hydrolysis water thermal oxide still high efficiency ecological organic fertilizer processed.
H, Ventilator Room
Ventilator Room is arranged in the sewage disposal device room, comprises a Fans, a backwashing pump, an electric control cabinet.
Sewage after the processing adds chlorine tablets and carries out disinfection, and is used for our factory's greening water, flushing mill floor water after the sterilization, cleans the plastics water.
It should be noted that at last: above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.
Claims (2)
1. one way of life waste disposal method is characterized in that: comprise the steps to process:
Step 10: refuse classification, garbage raw material through roughly select, after the magnetic separation, selection by winnowing, wet concentration, sub-elect bulk inorganic matter, fritter inorganic matter, ferromagnetic, battery class rubbish, dust class rubbish, organic matter, not recyclable class combustible, plastic film class light refuse, and the above-mentioned material that sorts out is done respectively following processing;
Step 20: organic matter high temperature and high pressure hydrolysis hydrothermal oxidization is processed, and comprises the organic matter that will sub-elect, and through acid treatment, then preheating is heated to 150 ℃～200 ℃ and is forced into 8～12Mpa, and pressurize 1.5-2 hour, through expanding treatment, drying, broken, screening is processed;
Step 30: the organic matter composting, with the organic matter after the degraded, through neutralization, batching, granulation, oven dry, make fertilizer; Or semiorganic compound fertilizer; Perhaps through neutralization, the fermentation that spreads cultivation, adding flora, fermentation, make biological organic fertilizer;
Step 40: combustible fuel made piece, with the not recyclable class combustible that sub-elects, after crushed, allocate additive, bonding agent and combustion adjuvant into, by weight 5: 1: 0.5: 0.1 ratio was mixed, and makes the solid refuse fuel slug;
Step 50: inorganic matter is made curing porous brick and concrete clamp dog, and the bulk inorganic matter that sub-elects, fritter inorganic matter after fragmentation, are mixed with cement and curing agent, and repressed forming machine is pressed into and solidifies the rubbish porous brick;
Step 60: behind wet concentration, broken, dehydration enters plastics and granulates machine-processed with plastic film class light refuse, and sediment and filter mud are made high efficiency ecological organic fertilizer through the hydrolysis water thermal oxide;
Step 70: through ferromagnetic, the battery class rubbish that separation system sub-elects, ferromagnetic class rubbish is directly delivered to the salvage station and is recycled; Battery send professional treatment factory;
Step 80: exhaust-gas treatment, refuse classification, the therrmodynamic system operation, the waste gas that produces in the hydrolysis water thermal oxide still course of work, delivering to exhaust gas washing tower after collecting processes, eliminate flue dust and pernicious gas, waste gas enters waste gas moisture film scrubbing tower from exhaust gas washing tower bottom tangent direction, a large amount of flue dust is thrown toward the tower wall in the waste gas, and by along under the dirty moisture film band of wall, high pressure pipe pump sprays into milk of lime in the waste gas moisture film scrubbing tower from waste gas moisture film scrubbing tower top, when waste gas when the waste gas moisture film column plate of washing column and the moisture film counter current contacting, make between the gas-liquid and fully mix, and continuity a period of time, flue dust in the waste gas and the emulsion in harmful components and the moisture film are reacted, generate solid-state reactants, with current whereabouts settling tank, waste gas moisture film scrubbing tower tail gas outlet conduit is provided with the active carbon adsorption retracting device, the poisonous danger in the absorption tail gas;
Step 90: sewage disposal through anoxic pond, contact-oxidation pool, decolouring oxidation processes, makes sewage reach discharge standard.
2. according to life refuse processing method claimed in claim 1, it is characterized in that: for hydrolysis water thermal oxide still and material drier provide the equipment of heat energy to comprise: superheated steam boiler, hot-blast stove, hot-air storage tank, air compressor and compressed air reservoir.
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