CN106746428A - A kind of high-temperature aerobic fermentation method for sludge treatment and device - Google Patents
A kind of high-temperature aerobic fermentation method for sludge treatment and device Download PDFInfo
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- CN106746428A CN106746428A CN201710047269.9A CN201710047269A CN106746428A CN 106746428 A CN106746428 A CN 106746428A CN 201710047269 A CN201710047269 A CN 201710047269A CN 106746428 A CN106746428 A CN 106746428A
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of high-temperature aerobic fermentation method for sludge treatment and device, solution has after Treatment of Sludge that water content is high, stink in the prior art, with technological effect it is good, operating cost is low, the effect that is produced without other pollutants in sludge handling process, its technical scheme is：Added including high-temperature aerobic fermentation Stain activation, the broken mixing of material, material, fermented, discharged and six steps of exhaust-gas treatment.
Description
Technical field
Technical field is utilized the present invention relates to organic solid waste waste resource, more particularly to a kind of high-temperature aerobic fermentation is dirty
Mud processing method and processing device.
Background technology
At present, China's town sewage plant up to more than 3000, in terms of moisture content 80%, broken through by the national total yield of sludge
30000000 tons.According to prediction, 60,000,000 tons of year will be broken through to the year two thousand twenty sludge yield.In America and Europe, Treatment of Sludge capital cost is accounted for
The ratio of sewage treatment plant's total capital investment cost is up to 60%~70%.The processing cost of excess sludge accounts for Sewage Plant operating cost
25%~40%, even as high as 60%.In China, Treatment of Sludge can account for the investment of whole Sewage Plant and operating cost 25%~
65%.Treatment of Sludge brings white elephant to Sewage Plant, therefore, Treatment of Sludge is the important composition portion of sewage disposal system
Point.
There is serious " the light mud of heavy water " phenomenon in the construction of current wastewater treatment in China factory, cause a large amount of sludge " overstocked ", not
Obtain the treatment disposal of reasonable benefit/risk.Although about 80% sewage treatment plant realizes the thickening of sludge, reach certain
The volume reduction of degree, but due to uncertain, the under-capitalization of disposal target, sludge is not implemented at stabilisation in sewage treatment plant
Reason, containing easily biodegradable organicses, odorant, pathogen etc. in unstabilized sludge, causes transporting and disposing link process
The diffusion of middle pollutant so that the environmental benefit for having built up the large quantities of sewage treatment facilities for putting into operation is had a greatly reduced quality.
At present, sludge conventional treatment method of disposal includes burning, landfill, compost, throws sea, Land_use change, recycling
Deng.In general, each department are for geographical environment, economic level, technology that Treatment of Sludge way choice is according to this area
The factors such as measure, communications and transportation and determine, and can be changed with the raising of public awareness and the change of interest.(1)
Burn：Dewatered sludge is sent directly into incinerator to burn, is the method for sludge treatment of " most thorough ", it can make organic matter whole carbon
Change, effectively kill pathogen, sludge volume is reduced to greatest extent；And floor space is small, high degree of automation.But sludge is straight
Connect burning investment greatly, processing cost is high, and organic compound combustion is also easy to produce the extremely toxic substances such as bioxin.(2) fill：Sludge landfill treatment
Impervious barrier cost is higher, if basement process is improper, easily causes the secondary pollution of soil and groundwater.Landfill depth is big, easily over the ground
Lower water is polluted；Landfill depth is small, and land utilization ratio is low, and floor space is big, and in the case of current soil anxiety, landfill is not
Suitable for sludge treatment.(3) anaerobic fermentation：Producing methane through anaerobic fermentation is mainly used in human and animal excreta and agricultural crop straw etc. with organic
The treatment of the solid waste based on matter content, the application in terms of sludge is typically limited to only biochemical sludge.Sludge anaerobic ferments
Cannot be clean by sludge digestion, secondary pollution can be produced, in addition, sludge anaerobic fermentation can produce about 50% biogas residue, biogas residue
Yield is big.(4) cement raw material is produced：The alternative part clay of sludge, lime stone are used as production cement raw material, but using preceding
Need to dry in advance, crush after carry out dispensing again, energy consumption is higher.(5) construction material is produced：Sludge be used as production construction material be with
It is compressing after a certain amount of clay, cinder etc. are stirred evenly, rotary kiln is loaded after drying and is fired into building materials.The method processes sludge energy
Building clay used is saved, while abandoning Sludge landfill factory, Economization on land.But atmosphere pollution is also easy to produce in sintering procedure, and
Drying is needed before dispensing, energy consumption is big.(6) minimizing treatment：Sludge reduction treatment is the sludge treatment that the nineties in 20th century proposes
New ideas, make the amount of solid that whole sewage disposal system is outwards discharged reach at least by means such as physics, chemistry, biologies, main
Oxidation Decomposition etc. is carried out by reducing microorganism yield or being breathed using microorganism own endogenous, fundamentally reduce sludge
Amount.Through the sludge that minimizing is processed, sludge character there occurs change, and moisture percentage in sewage sludge is substantially reduced, and solid content increases significantly, is carried
The stability of sludge high.Sludge after minimizing treatment can be used to produce cement or construction material, save dewatered sludge baking
Do required energy consumption；Domestic sewage sludge combustion heat value after minimizing treatment is higher than commonly industrial wastewater sludge, can be direct
For burning, calorific value up to 2300kcal/Kg~3200kcal/Kg, 2~3 tons of fuel values of dewatered sludge equivalent to 1 ton of coal,
It is worth with the suitable utilization of resources.
China's sludge reduction handling process mainly has anhydration and incineration, heat drying, plate compression, anaerobic composting and aerobic hair
Ferment etc..Anhydration and incineration, heat drying treatment sludge energy consumption are higher, and are also easy to produce atmosphere pollution；Plate compression cannot be fundamentally
Solve the problems, such as that moisture percentage in sewage sludge is high, stink is big；The anaerobic composting cycle is long, it is necessary to a large amount of auxiliary materials, and anaerobic composting mistake
Journey is difficult to control to, and technique, equipment operation difficulty are big.
In sum, prior art still lacks effective solution for sludge handling problem.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of high-temperature aerobic fermentation method for sludge treatment, its tool
Have that technological effect is good, operating cost is low, produced without other pollutants in sludge handling process and other effects, can be applied to urban life
Sludge of sewage treatment plant, organic industry sludge, cultivation factory excrement of animals, the treatment of organic kitchen garbage, tunning can be used as
Organic fungi-manure, Nutrition Soil, feed or construction material.
A kind of high-temperature aerobic fermentation method for sludge treatment, comprises the following steps：
Step 1 high-temperature aerobic fermentation Stain activation：By in high-temperature aerobic fermentation strain addition high-temperature aerobic fermentation chamber, open
Supply air system, stir-activating one hour；
The broken mixing of step 2 material：Sludge mixes with strain after crushing, forms material；
Step 3 material is added：Treat that high-temperature aerobic fermentation actication of culture is completed, material is added into high temperature by automatic charging device
Aerobic fermentation chamber, is sufficiently mixed under mixer effect with high-temperature aerobic fermentation strain；
Step 4 is fermented：One time fermentation is first carried out, in one time fermentation gentle two stages of high temperature in including, one time fermentation needs 10
~12 days；Secondary fermentation is carried out in ventilated environment by the material of one time fermentation, secondary fermentation is needed 20~30 days, in secondary hair
In the ferment stage, reached when temperature stabilization is at 40 DEG C and become thoroughly decomposed；
Step 5 discharges：Fermented complete material is discharged by self-emptying mouthful；
Step 6 exhaust-gas treatment：Gas is discharged after being processed through biological deodorizing device.
Further, the high-temperature aerobic fermentation strain described in described step 1 is only added once, and the later stage need not frequently more
Change or add；In high-temperature aerobic fermentation strain containing a large amount of bacillus subtilises, bacillus megaterium, bacillusmusilaginosiengineering,
The beneficial bacteriums such as colloid bacillus cereus, after sludge is processed through high-temperature aerobic fermentation strain and device, product is micro- life of good performance
Thing bacterial manure.
Further, the strain described in described step 2 is the intact organic fertilizer of the fermentation of foldback.
Further, the middle temperature described in described step 4 is 15~45 DEG C, and described high temperature is 45~65 DEG C.
Further, the stink substance in described step 6 in fermentation process is processed through high-temperature aerobic fermentation strain and converted
It is H2S、NH3Deng gas, being drained into after biological deodorizing device is processed by high-temperature aerobic fermentation chamber through air-introduced machine directly to discharge；Material
In moisture rapidly go to vapor, biological deodorizing device is drained into by high-temperature aerobic fermentation chamber, because the part water quality is close to pure water,
Without polluter, municipal wastewater pipeline can be directly discharged into after being processed through biological deodorizing tower.
In order to overcome the deficiencies in the prior art, present invention also offers a kind of high-temperature aerobic fermentation sludge treatment equipment, its
With plant automation, intelligence degree effect high, simple to operate.
A kind of high-temperature aerobic fermentation sludge treatment equipment, including storage bin, material crushing mixer, automatic charging device,
High-temperature aerobic fermentation chamber, biological deodorizing device, hydraulic power station, Remote Automatic Control System and switch board, described automatic throwing
Material device includes screw(-type) feeder and material lifting device；Described storage bin passes through material crushing mixer and screw(-type) feeder
It is connected, described screw(-type) feeder is connected by material lifting device with high-temperature aerobic fermentation chamber；Described high-temperature aerobic fermentation
Upper injection system is provided with the top of storehouse, the bottom of described high-temperature aerobic fermentation chamber is provided with bottom supply air system, described height
The center of warm aerobic fermentation chamber is longitudinally provided with mixer, and the top of described high-temperature aerobic fermentation chamber is removed by air-introduced machine with biology
Smelly device is connected；The Remote Automatic Control System is connected with switch board.
Further, the inside of described high-temperature aerobic fermentation chamber be additionally provided with oxygen concentration sensor, temperature sensor I and
Temperature sensor II, described oxygen concentration sensor, temperature sensor I and temperature sensor II connection PLCs pass through
Calculating send oxygen amount and temperature to realize automatically adjusting；Two temperature sensors are set, realize that measurement high-temperature aerobic fermentation chamber is different deep
The temperature of degree.
Further, described material lifting device and mixer provide power by hydraulic power station.
Further, described Remote Automatic Control System connects storage bin, material crushing mixer, thing by switch board
Material automatic lifting device, mixer, automatic discharge apparatus, top air-supply arrangement and bottom air-supply arrangement.
Further, described high-temperature aerobic fermentation chamber uses stainless steel.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, using high-temperature aerobic fermentation sludge treatment technique, energy consumption is low, low cost；Sludge high temperature aerobic installation for fermenting is configured
Auto temperature controlled system, can set optimum temperature range according to technique different phase, and system automatically controls intensification according to course of fermentation
With cooling, maintaining, high-temperature aerobic fermentation is efficient simultaneously, the control system energy consumption of maximum possible, reduces processing cost；
2nd, processing unit floor space is small, high degree of automation, and people manipulation can complete fermentation treatments；Sludge is high
The warm intelligent stirring system of aerobic fermentation device configuration, can at any time adjust material stirring speed according to running situation, make strain
It is sufficiently mixed uniformly with sludge, while meeting being fully contacted for strain and oxygen, it is ensured that the Effec-tive Function of fermentation system；Stirring system
System power uses hydraulic control mode, saves system dynamic consumption, reduces system operation cost；
3rd, gas qualified discharge is realized by biological deodorizing device, does not produce secondary pollution；
4th, high-temperature aerobic fermentation chamber uses stainless steel, reduces corrosion, long service life；
5th, through self-emptying mouthful discharge high-temperature aerobic fermentation chamber, material quality is loose, odorless；Material contains a large amount of bacterium
Kind, it is excellent organic fungi-manure raw material, can be used directly as plant cultivating soil.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Wherein, 1- storage bins, 2- material crushing mixers, 3- screw(-type) feeders, 4- material lifting devices, 5- high-temperature aerobics
Fermentation cabin, 6- upper injection systems, 7- temperature sensors I, 8- oxygen concentration sensor, 9- temperature sensors II, 10- finished product has
Machine fertilizer, 11- bottoms supply air system, 12- hydraulic power stations, 13- switch boards, 14- Remote Automatic Control Systems, 15- biological deodorizings
Device, 16- air-introduced machines.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the present invention.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to illustrative embodiments of the invention.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, there is after Treatment of Sludge the deficiencies such as water content is high, stink is big in the prior art, be
Solve technical problem as above, there is provided a kind of high-temperature aerobic fermentation method for sludge treatment and device.
In a kind of typical implementation method of the invention, there is provided a kind of high-temperature aerobic fermentation method for sludge treatment, its work
It is as principle：
Sewage Plant dewatered sludge inherently contains the microorganisms such as substantial amounts of bacterium and fungi, when temperature, moisture, amount of oxygen etc.
When condition is suitable, these microorganism amount reproductions, and decompose the organic matter in sludge.The high-temperature aerobic fermentation process reality of sludge
Upper is exactly fermentation process in sludge.Insoluble larger molecular organicses are then first attached to outside microbial body, by Institute of Micro-biology
The ectoenzyme of secretion is decomposed into soluble small-molecule substance, is re-fed into being utilized in microbial cell.The form of compost mesostroma
Very complicated, being only decomposed into simple shape could utilize for microorganism.Synthesis and decomposable process by microorganism, a part
Absorbed oxidation operation is into simple inorganic matter, and the energy required for providing vital movement, another part organic matter
The new cellular material of Synthesis, makes microbial growth.Should have to provide the control environment of microbial activities, in raw material certain
Moisture content, organic matter amount, pH value and gas permeability etc..
(1) moisture content
Moisture is one of highly important condition of microbe survival environment, it is necessary to keep certain moisture content.It is generally aqueous
Rate is high, the activity increase of its microorganism, is convenient for the decomposition of organic matter.But if moisture content is too high, its gas permeability will show
Writing is reduced, and the aerobic reaction in fermentation can be made to be converted into the anaerobic reaction under anaerobic state again.In an experiment by investigating temperature
Find that influence of the material water ratio to high-temperature aerobic fermentation is greater than the shadow of temperature when spending the influence movable to compost with moisture content
The degree of sound.50% moisture content is the minimum for maintaining microorganism normal activity needs in material, when the moisture content of material exists
The activity of microorganism is most active when 60%~70%.In addition, when material water ratio is between 30%~60%, moisture content is higher,
Microbial activities is more active.
(2) carbon-nitrogen ratio (C/N ratios)
C/N ratios be microbial body cell maintain with propagation principal element, C/N than size, directly affect organic matter
Decomposition rate.C/N ratios about 5~10 in microbial body.Usual average out to 5~6, C content increase, the propagation of microorganism can be because
N elements are not enough and be restricted, so as to slow down the decomposition of organic matter.The organic matter composition of sludge of sewage treatment plant, typically with albumen
The compositions such as matter, grease, cellulose constitute, while again because sewage species, whether there is digestion process, sludge treatment technique situation not
It is different together.
(3) pH value
The sludge of dose polymeric dehydration, its pH value about 6~7, in faintly acid, obstacle will not be constituted to aerobic fermentation.
For the sludge being dehydrated using feeding lime, FeCl is added during dehydration3About 7%~15%, calcium hydroxide is about 30%~50%,
Its pH value reaches 11~12, in strong basicity.Aerobic fermentation is carried out in this state obviously impossible, can be added using foldback
Finished product organic matter compost is to reduce pH value, and situation in species, raw sludge fermentation according to fermentation tank is mixed, the shape
Adjustment neutralizes device before need not being set under state, the CO produced in fermentation2Can be with Ca (OH)2Chemically react.
(4) gas permeability
For aerobic microorganism, the supply of air is indispensable, and the quantity delivered of air should be according in fermentation tank
Oxygen content and generation CO2Concentration levels, carry out appropriateness regulation control.When dewatered sludge is direct plungeed into fermentation tank, by
In the compression of sludge deadweight, will substantially reduce the gap in groove between deposit, lose good permeability.Such case
Under aerobic microorganism can be made dead because of anoxic, anerobe is active, and anaerobic fermentation will cause the generation of stench.
In order to improve the gas permeability of raw material, following two modes are taken：1. auxiliary material is added.To in sludge material add wood chip, stalk,
The thick organic matter such as rice husk, to improve its permeability, or is taken through foldback and adds the finished product fertilizer for having fermented being mixed
Close, same effect can be obtained.2. adjustment granularity mixes with foldback.The dewatered sludge of sewage treatment plant, have in argillaceous,
In fermentation process, should be blended, foldback, mixing, can play a part of to increase raw material gap, improve permeability.
(5) it is inoculated with strain
The intact part organic fertilizer that will ferment carries out foldback, and mixes with raw sludge.But for continous way fermentation tank,
After normal operation is entered, then strain is added, just without too big actual effect.For multisection type fermentation tank, opened in operating
During the beginning, strain is added, then may advantageously facilitate the carrying out of fermentation.
(6) fermentation time
It is easy to the organic matter for decomposing that rots, ferments, is generally decomposable asymmetric choice net, stablizes in the primary fermentation stage, referred to as one time fermentation,
That is primary fermentation.The organic matter poor for decomposabilities such as fibers, will typically ferment in second stage and decompose, and be also called secondary fermentation
That is after fermentation.One time fermentation is difficult clearly to divide with the accurate interface of secondary fermentation.The determination of its fermentation time, by advance
Test to carry out, general small-scale test groove is compared with large-scale installation for fermenting, and its fermentation time is partially short.The time of one time fermentation is 10
~12 days or so, with the different and different of the raw material state, fermentation process for fermenting.It is the time of secondary fermentation, then organic by product
The purposes of fertilizer requires to determine that generally in the case where relatively refinement fertilising is required, its secondary fermentation time is scheduled on more than 20 days and is
Preferably.
A kind of high-temperature aerobic fermentation method for sludge treatment, comprises the following steps：
Step 1 high-temperature aerobic fermentation Stain activation：By in high-temperature aerobic fermentation strain addition high-temperature aerobic fermentation chamber, open
Supply air system, stir-activating one hour；Described high-temperature aerobic fermentation strain is only added once, and the later stage is without frequently changing or throwing
Plus；
The broken mixing of step 2 material：Sludge mixes with strain after crushing, forms material；Described strain is foldback
The intact organic fertilizer of fermentation；
Step 3 material is added：Treat that high-temperature aerobic fermentation actication of culture is completed, material is added into high temperature by automatic charging device
Aerobic fermentation chamber, is sufficiently mixed under mixer effect with high-temperature aerobic fermentation strain；
Step 4 is fermented：One time fermentation is first carried out, in one time fermentation gentle two stages of high temperature in including, middle temperature is 15~45
DEG C, high temperature is 45~65 DEG C；One time fermentation is needed 10~12 days, according to the different and different of the raw material condition, fermentation process fermented；Through
Cross the material of one time fermentation carries out secondary fermentation in ventilated environment, and secondary fermentation is needed 20~30 days, the time root of secondary fermentation
Purposes requirement according to organic fertilizer determines that, in the case where relatively refinement fertilising is required, the secondary fermentation time is scheduled on more than 20 days and is advisable；
In the secondary fermentation stage, reached when temperature stabilization is at 40 DEG C and become thoroughly decomposed；
Step 5 discharges：Fermented complete material is discharged by self-emptying mouthful；
Step 6 exhaust-gas treatment：Gas is discharged after being processed through biological deodorizing device.
Above-mentioned fermented complete material reduction rate is about 86%, and leftover materials water content is 15~30%；Through automatic
Discharging opening discharge fermentation cabin material quality is loose, odorless.Material contains a large amount of high-temperature aerobic fermentation strains, is excellent have
Machine bacterial manure raw material, can use directly as plant cultivating soil.Partial fermentation product reflux or backfill, it is mixed with lower batch sludge
Fermentation is closed, without separately adding strain.
Stink substance is processed through high-temperature aerobic fermentation strain and is converted into H in above-mentioned fermentation process2S、NH3Deng gas, through drawing
After blower fan drains into biological deodorizing device treatment by high-temperature aerobic fermentation chamber, gas meets《Discharge standard of air pollutants》Will
Ask, can directly rear discharge up to standard, the sludge odorless after treatment, peculiar smell.Moisture in fermentation process in material rapidly goes to water
Steam, high-temperature aerobic fermentation chamber is discharged by air-introduced machine, because of the part water quality close to pure water, without polluter, is removed through biology
After smelly tower treatment, water quality meets《Sewage enters town sewer water standard》(CJ343-2010) municipal dirt can, be directly discharged into
Waterpipe, does not produce secondary pollution.
In another embodiment of the invention, there is provided a kind of high-temperature aerobic fermentation sludge treatment equipment, such as Fig. 1 institutes
Show, including storage bin 1, material crushing mixer 2, automatic charging device, high-temperature aerobic fermentation chamber 5, biological deodorizing device 15, liquid
Pressure power station 12, Remote Automatic Control System 14 and switch board 13, described automatic charging device include screw(-type) feeder 3 and thing
Material lifting device 4；Described storage bin 1 is connected by material crushing mixer 2 with screw(-type) feeder 3, described screw feeder
Machine 3 is connected by material lifting device 4 with high-temperature aerobic fermentation chamber 5；The top of described high-temperature aerobic fermentation chamber 5 is provided with top
Supply air system 6, the bottom of described high-temperature aerobic fermentation chamber 5 is provided with bottom supply air system 11, described high-temperature aerobic fermentation chamber 5
Center be longitudinally provided with mixer, the top of described high-temperature aerobic fermentation chamber 5 is by air-introduced machine 16 and biological deodorizing device 15
It is connected；The Remote Automatic Control System 14 is connected with switch board 13.
The inside of above-mentioned high-temperature aerobic fermentation chamber 5 is additionally provided with oxygen concentration sensor 8, temperature sensor I7 and temperature and passes
Sensor II9, described oxygen concentration sensor 8, temperature sensor I7 and temperature sensor II9 connection PLCs, by meter
Calculation send oxygen amount and temperature to realize automatically adjusting；Two temperature sensors are set, the measurement different depth of high-temperature aerobic fermentation chamber 5 is realized
Temperature.Sludge high temperature aerobic installation for fermenting can set optimum temperature model by auto temperature controlled system according to technique different phase
Enclose, system automatically controls intensification and cooling according to course of fermentation, and maintaining, high-temperature aerobic fermentation is efficient simultaneously, maximum possible
Control system energy consumption, reduce processing cost.
Above-mentioned material lifting device 4 and mixer provides power by hydraulic power station 12.
Above-mentioned Remote Automatic Control System 14 connects material automatic lifting device 4, mixer, automatic by switch board 13
The operation of drawing mechanism, top air-supply arrangement 6 and bottom air-supply arrangement 11, high degree of automation.
Above-mentioned high-temperature aerobic fermentation chamber 5 uses stainless steel, reduces corrosion, long service life.
In another embodiment of the present invention, there is provided a kind of high-temperature aerobic fermentation method for sludge treatment and device, can be applied to
City domestic sewage treatment plant sludge, organic industry sludge, cultivation factory excrement of animals, the treatment of organic kitchen garbage, fermentation are produced
Thing can be used as organic fungi-manure, Nutrition Soil, feed or construction material.Contain a large amount of bacillus subtilis in high-temperature aerobic fermentation strain
The beneficial bacteriums such as bacterium, bacillus megaterium, bacillusmusilaginosiengineering, colloid bacillus cereus, sludge through high-temperature aerobic fermentation strain and
After device treatment, product is microbial-bacterial fertilizer of good performance.Various beneficial bacteriums are mutually promoted, are complementary to one another in product, anti-soil
Pass disease effect and be far longer than single culture.Profitable strain is mutually cooperateed with, collective effect, and crop can be made to reach the effect of high yield high yield
Really.The sludge high temperature aerobic tunning that certain citric acid enterprise sewage treatment project is produced is used as fertilizer, with following notable spy
Point：
(1) fast-growth is promoted
The beneficial microbes such as bacillus megaterium, bacillusmusilaginosiengineering in high-temperature aerobic fermentation strain are in metabolic process
It is middle to produce substantial amounts of plant endogenous enzyme, absorptivity of the crop to nutrients such as nitrogen, phosphorus, potassium can be significantly improved.
(2) vital movement, increasing both production and income are adjusted
The beneficial bacteriums such as bacillusmusilaginosiengineering, bacillus laterosporus, bacillus licheniformis in high-temperature aerobic fermentation strain
Crop root growth can be promoted, fibrous root increases.Plant endogenous enzyme and plant growth regulating that beneficial microbe colony metabolism is produced
Agent, enters in plant via root system, promotes leaf photosynthesis.
(3) improve quality
Bacillus laterosporus, bacillus subtilis, bacillus coagulans in high-temperature aerobic fermentation strain etc. can reduce plant
Nitrate content and content of beary metal in object, can make Vc contents and soluble pol raising in fruit.Lactic acid bacteria, withered grass gemma
Bacillus etc. can improve the content of essential amino acid, vitamin and unrighted acid etc. in fruit.Crop or fruit mouthfeel can be made
Good, storage endurance, selling price is high.
(4) decomposition of organic matter and toxin, prevent continuous cropping
The beneficial microbes such as bacillus licheniformis, bacillus subtilis in high-temperature aerobic fermentation strain can accelerate organic matter
The decomposition of matter, is crop manufacture available nutrient, provides power, can decompose poisonous and harmful substance, prevents continuous cropping.
(5) soil protection foundation environment
After the beneficial microbes such as the bacillus licheniformis in high-temperature aerobic fermentation strain are manured into soil, rapid breeding turns into excellent
Gesture flora, controls foundation nutrition and resource, the pathogens such as continuous cropping, root rot, damping-off, bleeding disease, gray mold is lost existence
Space and condition.Make the cell wall thickening of root system of plant cell, fibrosis, lignifying, and generate the double silicon layers of cutin, formed and prevented
The firm barrier of pathogen invasion and attack.
(6) resistance of crop is strengthened
Beneficial micro- life such as bacillus licheniformis, bacillus megaterium, bacillus laterosporus in high-temperature aerobic fermentation strain
Thing can strengthen buffering power of soil, and enhancing crop drought resistance, hole are trembled with fear, waterlogging-resistant ability；Blade protection film, resistance disease can also be strengthened simultaneously
Opportunistic pathogen infects, and makes crop disease-resistant, pest-resistant.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of high-temperature aerobic fermentation method for sludge treatment, it is characterised in that comprise the following steps：
Step 1 high-temperature aerobic fermentation Stain activation：By in high-temperature aerobic fermentation strain addition high-temperature aerobic fermentation chamber, air-supply is opened
System, stir-activating one hour；
The broken mixing of step 2 material：Sludge mixes with strain after crushing, forms material；
Step 3 material is added：Treat that high-temperature aerobic fermentation actication of culture is completed, material is added into high-temperature aerobic by automatic charging device
Fermentation cabin, is sufficiently mixed under mixer effect with high-temperature aerobic fermentation strain；
Step 4 is fermented：One time fermentation is first carried out, in one time fermentation gentle two stages of high temperature in including, one time fermentation needs 10~12
My god；Being positioned over by the material of one time fermentation carries out secondary fermentation in ventilated environment, secondary fermentation is needed 20~30 days, in secondary hair
In the ferment stage, reached when temperature stabilization is at 40 DEG C and become thoroughly decomposed；
Step 5 discharges：Fermented complete material is discharged by self-emptying mouthful；
Step 6 exhaust-gas treatment：Gas is discharged after being processed through biological deodorizing device.
2. a kind of high-temperature aerobic fermentation method for sludge treatment according to claim 1, it is characterised in that described step 1
Described in high-temperature aerobic fermentation strain only add once, the later stage is without frequently changing or add.
3. a kind of high-temperature aerobic fermentation method for sludge treatment according to claim 1, it is characterised in that described step 2
Described in strain be the intact organic fertilizer of fermentation of foldback.
4. a kind of high-temperature aerobic fermentation method for sludge treatment according to claim 1, it is characterised in that described step 4
Described in middle temperature be 15~45 DEG C, described high temperature is 45~65 DEG C.
5. a kind of high-temperature aerobic fermentation method for sludge treatment according to claim 1, it is characterised in that described step 6
Stink substance in middle fermentation process is processed through high-temperature aerobic fermentation strain and is converted into gas, and the moisture in material rapidly goes to water
Steam, biological deodorizing device is drained into by air-introduced machine by high-temperature aerobic fermentation chamber, can directly be arranged after being processed through biological deodorizing device
Put.
6. a kind of high-temperature aerobic fermentation sludge treatment equipment, it is characterised in that including storage bin, material crushing mixer, automatic
Charging device, high-temperature aerobic fermentation chamber, biological deodorizing device, hydraulic power station, Remote Automatic Control System and switch board, it is described
Automatic charging device include screw(-type) feeder and material lifting device；Described storage bin passes through material crushing mixer and spiral shell
Rotation batcher is connected, and described screw(-type) feeder is connected by material lifting device with high-temperature aerobic fermentation chamber；Described high temperature
Upper injection system is provided with the top of aerobic fermentation chamber, the bottom of described high-temperature aerobic fermentation chamber is provided with bottom supply air system,
The center of described high-temperature aerobic fermentation chamber is longitudinally provided with mixer, and the top of described high-temperature aerobic fermentation chamber passes through air-introduced machine
It is connected with biological deodorizing device；The Remote Automatic Control System is connected with switch board.
7. a kind of high-temperature aerobic fermentation sludge treatment equipment according to claim 6, it is characterised in that described high temperature is good
The inside in aerobe fermentation storehouse is additionally provided with oxygen concentration sensor, temperature sensor I and temperature sensor II.
8. a kind of high-temperature aerobic fermentation sludge treatment equipment according to claim 6, it is characterised in that described material is carried
Rise device and mixer provides power by hydraulic power station.
9. a kind of high-temperature aerobic fermentation sludge treatment equipment according to claim 6, it is characterised in that it is described it is long-range from
Autocontrol system connects storage bin, material crushing mixer, material automatic lifting device, mixer, goes out automatically by switch board
Material device, top air-supply arrangement and bottom air-supply arrangement.
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| CN110903113A (en) * | 2019-12-31 | 2020-03-24 | 河南农业大学 | Organic fertilizer composite bacteria starter, special equipment thereof and application of starter in fermentation before fast maturity of organic fertilizer |
| CN111493227A (en) * | 2020-04-15 | 2020-08-07 | 潍坊盛泰药业有限公司 | Method for producing fermented feed by using activated sludge of corn starch factory |
| CN111533416A (en) * | 2020-05-18 | 2020-08-14 | 宇恒(南京)环保装备科技有限公司 | Method for solid-liquid synergistic aerobic biological fermentation of high-nutrition waste organic matters |
| CN112479761A (en) * | 2020-12-11 | 2021-03-12 | 安徽永志环能科技有限公司 | Quick fermentation system of fertilizer |
| JP7478053B2 (en) | 2020-07-27 | 2024-05-02 | Ｕｂｅ三菱セメント株式会社 | Sewage sludge fermentation raw material |
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| CN107056552A (en) * | 2017-06-10 | 2017-08-18 | 陕西理工学院 | A kind of utilization excess sludge and agriculture and forestry organic waste material prepare the device of fertilizer |
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| CN111493227A (en) * | 2020-04-15 | 2020-08-07 | 潍坊盛泰药业有限公司 | Method for producing fermented feed by using activated sludge of corn starch factory |
| CN111533416A (en) * | 2020-05-18 | 2020-08-14 | 宇恒(南京)环保装备科技有限公司 | Method for solid-liquid synergistic aerobic biological fermentation of high-nutrition waste organic matters |
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| CN112479761A (en) * | 2020-12-11 | 2021-03-12 | 安徽永志环能科技有限公司 | Quick fermentation system of fertilizer |
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Application publication date: 20170531 |