CN104801528B - Domestic waste organic treatment method - Google Patents
Domestic waste organic treatment method Download PDFInfo
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- CN104801528B CN104801528B CN201410042710.0A CN201410042710A CN104801528B CN 104801528 B CN104801528 B CN 104801528B CN 201410042710 A CN201410042710 A CN 201410042710A CN 104801528 B CN104801528 B CN 104801528B
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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
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
- Y02W30/20—Waste processing or separation
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Abstract
The invention relates to a domestic waste organic treatment method. The method comprises the following steps: separating organic matters from domestic wastes, crushing to form particles, and discharging particles with the dimension of below 8mm, lightweight materials and metallic magnetic materials; sending the crushed organic particles into a bioreactor, spraying inoculation water on the organic particles, allowing the organic particles to go through a mechanical stirrer, leaching dissoluble organic matters in the organic particles into a leachate, filtering the collected leachate to remove residues, sending the leachate into an anaerobic reactor in a sewage treatment station, carrying out treatment, sending generated methane and carbon dioxide into a biogas storage bag for recycling, sending biochemical active sludge water into an aerobic reaction tank, degrading organic matters, allowing wastewater separated from the sludge water to respectively go through an ultrafilter and a nanofilter or a reverse-osmosis device for treatment, discharging standard reaching clear water, respectively collecting and treating escaping zone through a gas collecting cover, and discharging standard reaching gas. The method makes the domestic wastes reduced and harmless.
Description
Technical field
The present invention relates to a kind of house refuse organic process method, belongs to technical field of domestic garbage treatment.
Background technology
The main treatment technology of house refuse mainly includes that landfill, burning, compost, broken physics, fodder and anaerobism disappear
Change treatment technology.Therefore, either fill, burn or compost, all exist in the practice for processing China's house refuse a lot
Problem.The best-of-breed technology route for solving this problem is the categorised collection that rubbish is advanced from the angle for processing.But, house refuse
Categorised collection not in a short time it is achieved that so, reality Prediction for Solid Waste Treatment Technology developing direction must in the face of mixing
Collect, recyclable materials content and the house refuse that calorific value is low, msw water content and biodegradable content of organics are high.
The method that urban garbage disposal more advanced at present is disposed, by sorting consumer waste and coarse crushing, many times of Jing
Dehydration and crushing, the fine garbage dry powder for obtaining are burnt in stove, generated electricity after process.Have again is by domestic waste
Combustible, organic nutrient soil, metal, four part of inorganic refuse are resolved into, combustible is used to burn generation vapor；Special
In degraded tank, biodegradable organic waste degradation reaction is made using the temperature and pressure of vapor, change into organic nutrient soil；Inorganic rubbish
Rubbish makes building materials or landfill disposal.But in above-mentioned processing procedure, it is impossible to make Domestic Waste Minimization and and harmless treatment, no
Beneficial to subsequent treatment, the impact to environment is larger.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of life rubbish for making Domestic Waste Minimization and harmless treatment
Rubbish integrated conduct method.
The present invention is that the technical scheme for reaching above-mentioned purpose is：A kind of house refuse organic process method, it is characterised in that：
Carry out according to the following steps：
(1) separating treatment is carried out to the Organic substance of house refuse,
House refuse is delivered in organic seperator by elevator, the organic seperators of Jing are broken into particulate matter, by 8mm
Particles below thing is discharged from the bottom of organic seperator, while by lightweight thing and metal class Magnetic Materials from after organic seperator
Discharge in portion；
(2), leaching biochemical reaction process is carried out to organic particulate matter,
Organic particulate matter after will be broken is sent in biochemical reactor by carrier, the spray of biochemical reactor inner top
, on organic particulate matter, the mechanical agitator in biochemical reactor is continuous for inoculation Water spray of the head interval by temperature more than 30 DEG C
Be hydrolyzed acidifying, by the Organic substance drip washing of organic particulate matter interior energy dissolving into leachate, leaching to organic particulate matter stirring
After biochemical reaction terminates, the leachate to collecting is filtered, to the particulate matter after filtration by belt conveyor to sending into life
Change in reactor, the particulate matter to discharging after biochemical reaction carries out extrusion dehydration, carries out Treatment for Reuse, by the major part after filtration
Leachate is delivered to Sewage Disposal and carries out the wastewater treatment of postorder, and the leachate of remaining part is flowed back in organic liquid storage tank to be made
To be inoculated with water, then cause by high pressure cutting sewage pump and pipeline；
(3) biochemical treatment is carried out to leachate,
Leachate is delivered in the anaerobic reactor of Sewage Disposal by sewage pump and pipeline, leachate is in anaerobic reaction
In device, Jing anaerobe carries out acid digestion and alkaline digest, by the contaminant degradation in leachate and conversion be changed into methane, dioxy
Change carbon and biochemical sludge water, methane and carbon dioxide are sent into biogas storage bag and recycled, what anaerobic digestion was produced
Biogas slurry returns biochemical reactor；During biochemical sludge water is delivered in aerobic reaction tank, Jing solid jets and blast aeration, to biochemistry
Activated sludge water carries out nitration reaction to organic matter degradation, the sludge water after nitration reaction is delivered to and carry out in sludge dewatering equipment mud
Water is separated, mud cake outward transport, it is separated after waste water be sent in ultrafilter and processed, the membrane module of ultrafilter carries out solid to waste water
Liquid is separated, and concentrated solution is delivered in biochemical reactor, and clear liquid is sent in nanofiltration device or counter-osmosis device, the film of nanofiltration device or counter-osmosis device
Component is carried out to clear liquid after filtration treatment, is discharged after clear water is up to standard, and concentrated solution is delivered in biochemical reactor；
(4), Odor control,
Respectively by gas collection fan housing to the foul smell for dissipating is produced at separating organic matters machine, biochemical reactor, sludge dewatering equipment
It is collected, and is sent at wash mill by pipeline under being drawn of blower fan, after scrubbed dust removal humidification pretreatment, by foul smell
Filter bed bottom from biofilter from bottom to top through the filter bed being made up of filtrate, and by the metabolism of the microorganism on filtrate
And be decomposed, discharge after gas is up to standard.
The present invention organic domestic waste after separation is carried out it is broken after send in biochemical reactor, by temperature 30 DEG C with
The upper inoculation Water spray with anaerobe makes organic particulate matter continuous stirring in the biochemical reactor on organic particulate matter
Drip washing is circulated to house refuse with inoculation water, mass transport process and anaerobic fermentation process between house refuse is accelerated, can
Biodegradable organic component with sharp separation and in house refuse of degrading, during this process makes broken house refuse, degradable has
Machine thing and carbohydrate-modifying utilization rate respectively reach right left and 85wt% of 95wt% or so, preferably can separate and life of degrading
Biodegradable organic component in rubbish living, substantially reduces minimizing and the stabilization procedures of house refuse, makes life rubbish
Rubbish minimizing and stabilisation.Leaching biochemical reaction method and anaerobism+aerobic+film deep treatment method are had unit by the present invention
Close, biodegradable Organic substance in house refuse is made full use of by multiplexed combination technique, waste residue is used as auxiliary fuel, natural pond
Gas is reclaimed and can be generated electricity, tail water qualified discharge after leachate process, and the purified rear qualified discharge of the foul smell in processing procedure, pole
The floor space of refuse landfill is reduced to limits, the yield of the gas and percolate of refuse landfill is reduced.This
Bright house refuse organic process method can serve very big work in the minimizing of rubbish, resource and harmless treatment
With can reach comprehensive environmental protection treatment effect, by resourcable transformation, have for improving environment.
Specific embodiment
The house refuse organic process method of the present invention, is carried out according to the following steps：
(1) separating treatment is carried out to the Organic substance of house refuse,.
House refuse is delivered in organic seperator by elevator, the organic seperators of Jing are broken into particulate matter, pass through
Crushing mechanism in organic seperator is by solid organic matters big in house refuse such as food, bone, wooden bamboo etc. and broken
Heavy substance such as shell, glass, ceramics etc. crushed, and 8mm particles below thing is discharged from the bottom of organic seperator,
Simultaneously lightweight thing such as plastics, paper and metal class Magnetic Materials are discharged from the rear portion of organic seperator, the recyclable profit of light impurities
With or burn, landfill disposal, metal class Magnetic Materials recycle.
(2), leaching biochemical reaction process is carried out to organic particulate matter.
Organic particulate matter after will be broken is sent in biochemical reactor by carrier, the spray of biochemical reactor inner top
On organic particulate matter, such as spray head sprays 5-30 minutes to inoculation Water spray of the head interval by temperature more than 30 DEG C, stops 60-
90 minutes, the mechanical agitator in biochemical reactor was hydrolyzed to organic particulate matter continuous stirring acidifying, mechanical agitator
In 0.3～1.5r/min, the Organic substance drip washing that organic particulate matter interior energy is dissolved, will be organic into leachate for mixing speed control
The Organic substance of particulate matter switchs to liquefaction by solid state, as organic particulate matter in biochemical reactor does not stop to stir and connect
Plant water and drip washing is circulated to house refuse, accelerate mass transport process and anaerobic fermentation process between house refuse, contract significantly
Short Domestic Waste Minimization and stabilized process, the time of staying of the house refuse in biochemical reactor was at 3-5 days.
After leaching biochemical reaction terminates, the leachate to collecting is filtered, defeated by belt to the particulate matter after filtration
Send machine that biochemical reaction is carried out to being fed in biochemical reactor, again, the leachate Jing produced by biochemical reaction process can be given birth to
The filtering grid for changing reactor bottom enters catch box, and the leachate in catch box is delivered in rotary drum grid machine and removed in leachate
The granule of footpath more than 3mm, the particulate matter to discharging after biochemical reaction carry out extrusion dehydration, are filled or Treatment for Reuse, can
Particulate matter Jing conveyers after extrusion dehydration are delivered in screening machine, auxiliary fuel, inorganic inert thing and metal class magnetic is separated
Property thing simultaneously carries out reuse, the metal class Magnetic Materials in particulate matter can be sorted and be reclaimed by concentration equipment, by gravity
Extension set carries out mechanical grading, separates auxiliary fuel and inorganic inert thing, and the inorganic inert thing includes gravel and glass, by what is separated
The inorganic inert such as auxiliary fuel and gravel and glass thing is recycled.
Most of leachate after by filtration is delivered to Sewage Disposal and carries out the wastewater treatment of postorder, the leaching of remaining part
Liquid is flowed back into as inoculation water in organic liquid storage tank, then is caused to be used as at spray head and connect by high pressure cutting sewage pump and pipeline
Plant Water circulation.
(3) biochemical treatment is carried out to leachate,.
Leachate is delivered in the anaerobic reactor of Sewage Disposal by sewage pump and pipeline, leachate is in anaerobic reaction
In device, Jing anaerobe carries out acid digestion and alkaline digest, by leachate 80～85% organic pollutant degradation and converts change
For methane, carbon dioxide and biochemical sludge water, methane and carbon dioxide are sent into biogas storage bag and are recycled, and detest
The biogas slurry that oxygen digestion is produced is returned in biochemical reactor, to ensure that biochemical reaction is normally carried out.Acidity in anaerobic reactor disappears
Change stage, the Organic substance in leachate are hydrolyzed first in the presence of exoenzyme and liquefaction, and metabolite is that polysaccharide is hydrolyzed into list
Saccharide, protein are hydrolyzed into aminoacid, and fat splitting is into glycerol, fatty acid.The energy produced during decomposing organic matter
Almost all is consumed as the energy needed for organic matter fermentation.And the alkaline digest stage is the stage for producing biogas, by acid digestion
The metabolite in stage is decomposed into biogas in the presence of methanogen, and anaerobic reactor keeps stable ecological balance, anaerobism
Basicity in reactor is controlled in 2000～3000mg/L.
During biochemical sludge water is delivered in aerobic reaction tank, Jing jet aerators and blast aeration are dirty to biochemical activity
Muddy water carries out nitration reaction, will be the organic pollution of bio-degradable in biochemical sludge water almost degradable, while handle
Ammonia nitrogen and organic nitrogen are oxidized to nitrate, effectively the pollutant such as Organic substance, ammonia nitrogen and total nitrogen in degraded leachate.
Sludge water after nitration reaction is delivered to and carry out in sludge dewatering equipment mud-water separation, mud cake outward transport can adopt sheet frame
Formula sludge dewatering equipment, belt mud dewatering equipment and Die Shi sludge dewatering equipments carry out mud-water separation, it is separated after waste water be sent to it is super
Processed in filter, the membrane module of ultrafilter carries out solid-liquid separation to waste water, to remove macromole and colloidal organic substances matter, disease
The composition such as malicious, antibacterial and suspended material, BOD and COD, concentrated solution are delivered in biochemical reactor, realize activity sludge reflux, are protected
Hold the stability of activated sludge in biochemical system.Clear liquid is sent in nanofiltration device or counter-osmosis device, the film of nanofiltration device or counter-osmosis device
Component is carried out to clear liquid after filtration treatment, is to carry out advanced treating to ultra-filtration water by nanofiltration, to remove bio-refractory
Organic substance, or by counter-osmosis device except most of soluble salt class, a small amount of colloid and Organic substance, clear water heel row up to standard in waste water
Put, concentrated solution delivers to biochemical reactor.
(4), Odor control.
Respectively by gas collection fan housing to the foul smell for dissipating is produced at separating organic matters machine, biochemical reactor, sludge dewatering equipment
It is collected, and is sent at wash mill by pipeline under being drawn of blower fan, after scrubbed dust removal humidification pretreatment, by foul smell
From bottom to top through the filter bed being made up of filtrate, the odorant in foul smell is transferred to by gas phase for filter bed bottom from biofilter
Water-microorganism mixed phase, and be decomposed by the metabolism of the microorganism on filtrate, discharge after gas is up to standard.
Claims (3)
1. a kind of house refuse organic process method, it is characterised in that：Carry out according to the following steps：
(1) separating treatment is carried out to the Organic substance of house refuse,
House refuse is delivered in organic seperator by elevator, the organic seperators of Jing are broken into particulate matter, by below 8mm
Particulate matter discharge from the bottom of organic seperator, while lightweight thing and metal class Magnetic Materials are arranged from the rear portion of organic seperator
Go out；
(2), leaching biochemical reaction process is carried out to organic particulate matter,
Organic particulate matter after will be broken is sent in biochemical reactor, between the spray head of biochemical reactor inner top by carrier
, on organic particulate matter, the mechanical agitator in biochemical reactor is continuously to having for the inoculation Water spray having a rest by temperature more than 30 DEG C
Machine particulate matter stirs the acidifying that is hydrolyzed, and into leachate, leaching is biochemical for the Organic substance drip washing that organic particulate matter interior energy is dissolved
After reaction terminates, the leachate to collecting is filtered, and sends into biochemical reaction by belt conveyor to the particulate matter after filtration
In device, the particulate matter to discharging after biochemical reaction carries out extrusion dehydration, carries out Treatment for Reuse, by filtration after most of leachate
Delivering to Sewage Disposal carries out the wastewater treatment of postorder, and the leachate of remaining part is flowed back in organic liquid storage tank as inoculation
Water, then cause by high pressure cutting sewage pump and pipeline；
(3) biochemical treatment is carried out to leachate,
Leachate is delivered in the anaerobic reactor of Sewage Disposal by sewage pump and pipeline, leachate is in anaerobic reactor
Jing anaerobe carries out acid digestion and alkaline digest, by the contaminant degradation in leachate and conversion be changed into methane, carbon dioxide
And biochemical sludge water, methane and carbon dioxide send into biogas storage bag and recycled, the biogas slurry that anaerobic digestion is produced
Return biochemical reactor；During biochemical sludge water is delivered in aerobic reaction tank, Jing solid jets and blast aeration, to biochemical activity
Sludge water carries out nitration reaction to organic matter degradation, the sludge water after nitration reaction is delivered to and carry out in sludge dewatering equipment muddy water point
From the outward transport of, mud cake, it is separated after waste water be sent in ultrafilter and processed, the membrane module of ultrafilter carries out solid-liquid point to waste water
From concentrated solution is delivered in biochemical reactor, and clear liquid is sent in nanofiltration device or counter-osmosis device, the membrane module of nanofiltration device or counter-osmosis device
Clear liquid is carried out after filtration treatment, discharged after clear water is up to standard, concentrated solution is delivered in biochemical reactor；
(4), Odor control,
The foul smell for producing dissipation at separating organic matters machine, biochemical reactor, sludge dewatering equipment is carried out by gas collection fan housing respectively
Collect, and sent at wash mill by pipeline under being drawn of blower fan, after scrubbed dust removal humidification pretreatment, by foul smell from life
The filter bed bottom in thing filter tank is from bottom to top through the filter bed being made up of filtrate, and the quilt by the metabolism of the microorganism on filtrate
Decompose, discharge after gas is up to standard.
2. house refuse organic process method according to claim 1, it is characterised in that：By the particulate matter after extrusion dehydration
Jing conveyers are delivered in screening machine, are separated auxiliary fuel, inorganic inert thing and metal class Magnetic Materials and are carried out reuse, described
Inorganic inert thing includes gravel and glass.
3. house refuse organic process method according to claim 1, it is characterised in that：Alkali in the anaerobic reactor
Degree control is in 2000～3000mg/L.
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| CN106122968A (en) * | 2016-06-24 | 2016-11-16 | 浦北县科学技术开发中心 | Preprocess method before one way of life waste incineration |
| CN106391650A (en) * | 2016-08-31 | 2017-02-15 | 苏州恺利尔环保科技有限公司 | Zero emission process for treating kitchen wastes |
| CN107473512A (en) * | 2017-09-01 | 2017-12-15 | 安徽信息工程学院 | Pig waste water separation water recycling system |
| CN108405561A (en) * | 2018-03-13 | 2018-08-17 | 庐江绿世代生态农业科技有限公司 | A kind of kitchen garbage recovery processing technique |
| CN109433788B (en) * | 2018-10-29 | 2020-03-20 | 青岛大学附属医院 | Medical waste environment-friendly treatment device |
| CN109513732B (en) * | 2019-01-25 | 2021-12-07 | 臣功环境科技有限公司 | Household garbage recycling process |
| CN110170501B (en) * | 2019-04-30 | 2020-11-06 | 贵州民族大学 | Integrated treatment system of domestic waste |
| CN110961245A (en) * | 2019-12-30 | 2020-04-07 | 广西锟德能源科技有限公司 | Domestic waste water conservancy sorting device |
| CN113145609B (en) * | 2021-03-15 | 2022-11-15 | 哈尔滨工业大学 | Sequencing batch type pretreatment system and method for anaerobic digestion of high-solid-content kitchen garbage |
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| JP2001239241A (en) * | 2000-03-02 | 2001-09-04 | Puraseramu:Kk | Device and method of treating organic waste |
| CN102794293B (en) * | 2011-05-27 | 2014-04-09 | 北京昊业怡生科技有限公司 | Method for comprehensively treating municipal solid waste |
| CN102357506B (en) * | 2011-08-01 | 2013-07-03 | 牛心红 | Method for wet treatment and resource utilization of household garbage |
| CN102950137B (en) * | 2011-08-19 | 2015-07-08 | 光大环保科技发展（北京）有限公司 | Kitchen waste collaborative processing method |
| CN102861762B (en) * | 2012-09-27 | 2014-10-29 | 江苏维尔利环保科技股份有限公司 | Anaerobic digestion treatment method for organic garbages |
| CN103008326B (en) * | 2012-11-27 | 2015-04-22 | 中国环境科学研究院 | Method for comprehensive treatment of household refuses and secondary pollution control |
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