CN108503165A - A kind of organic sludge desiccation stabilizes quick treatment device and processing method - Google Patents
A kind of organic sludge desiccation stabilizes quick treatment device and processing method Download PDFInfo
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- 238000000855 fermentation Methods 0.000 claims abstract description 99
- 230000004151 fermentation Effects 0.000 claims abstract description 99
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 241000894006 Bacteria Species 0.000 claims abstract description 35
- 150000001875 compounds Chemical class 0.000 claims abstract description 33
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims description 36
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 17
- 238000001994 activation Methods 0.000 claims description 16
- 230000004913 activation Effects 0.000 claims description 12
- 244000063299 Bacillus subtilis Species 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 241000193744 Bacillus amyloliquefaciens Species 0.000 claims description 9
- 235000007164 Oryza sativa Nutrition 0.000 claims description 7
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- 238000004321 preservation Methods 0.000 claims description 7
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- 238000004332 deodorization Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 4
- 239000010801 sewage sludge Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
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- 238000001035 drying Methods 0.000 description 4
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
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Classifications
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- 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
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0423—Beds in columns
-
- 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
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
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- Analytical Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of organic sludge desiccation to stabilize quick treatment device, belongs to organic sludge treatment technical field, which includes fermentation cabin, and fermentation cabin is internally provided with heating device, and outside is also associated with agitating device, temperature-detecting device, control device；Control device is separately connected heating device, temperature-detecting device and agitating device by signal；The invention also discloses the methods for handling sludge using the device, the method of the present invention makes thermophilic compound bacteria carry out high-temperature aerobic fermentation acquisition tunning to organic sludge, and the auxiliary heating when thermophilic compound bacteria-fermented is not enough to maintain high temperature from heat production, therefore, organic sludge can quickly be handled, so that its quick desiccation is stabilized, so as to shorten the organic sludge treatment period, improves organic sludge treatment efficiency.
Description
Technical field
The invention belongs to organic sludge treatment technical fields, and in particular to organic sludge desiccation stabilizing surface treatment is led
Domain, specifically a kind of organic sludge desiccation stabilize quick treatment device and processing method.
Background technology
Organic sludge refers to the solid matter generated in municipal wastewater processing procedure, includes mainly two heavy excess sludges
With primary sludge two major classes.It is after mechanical dehydration, and moisture content is generally 80% or so.Part of contaminated water factory organic sludge is through height
Plate frame is dehydrated, and moisture content is up to 60%.
Solid matter includes mainly inorganic matter and organic matter in organic sludge.Inorganic matter is primarily referred to as sandstone substance, has
Machine object is the sugar, protein and fatty material carried secretly in sewage, organic matter that also part bacterium secretes in metabolic process and
Thalline itself.
Organic sludge mainly has four technology paths to be handled at present, and one：By mechanical dehydration, mainly pass through high pressure
It is filled after frame dehydration；Two：By heat drying, is burned or filled after its moisture content is down to 30% or less；Three：
By anaerobic digestion, it will wherein decompose organic matter, and generate biogas and carry out recycling；Four：By aerobic fermentation, will wherein have
Machine object, which decomposes, generates water and carbon dioxide, and removes the moisture in sludge.
The mechanical processing methods such as high pressure sheet frame, the accessible limit are by moisture control 60% or so, this process needs
The medicaments such as feeding lime are wanted, handle obtained sludge in this way, although having certain biological stability, its pH is higher, and
Reduced training is simultaneously bad.Moisture content can be dropped to very low level by heat drying, but this process needs auxiliary thermal source, processing
It is of high cost, and the sludge drying device of domestic mainstream, such as blade, ribbon, belt, all there is a problem of certain.Anaerobic digestion
It is that the organic matter in sludge is converted CH by relatively good utilization approaches in fact by the effect of microorganism4And CO2, wherein CH4
It can be utilized.But anaerobic digestion techniques cost of investment is big, and fermentation time is long, and reactor volume is big, and the product after fermentation is aqueous
Rate is high, also needs to carry out certain processing.Gas production is easy to be influenced by temperature, material and stirring, while large-scale anaerobic digestion is built
If few with operating experience, it is difficult to realize continuous-stable aerogenesis.
Aerobic fermentation refers to aerobic compost technology, is the effect by microorganism, by the organic matter part in sludge point
Solution is CO2And H2O, a part are converted into the bio-stabilizations substance such as humus, and product has certain fertilizer efficiency, can be used for producing
Organic fertilizer.But because moisture percentage in sewage sludge is high, it is generally needed to be added a large amount of auxiliary material and ventilation rate is provided, result in the need for the object of fermentation
Doses increases.
Traditional composting technology, the internal cause of the variation of temperature are the heats that microorganism decomposition organic matter generates.Reaction is just
Phase, microorganism decomposition easily biodegradable organics, system temperature increases, thermophilic in hot stage by medium temperature step transition to hot stage
Hot compound bacteria fast decoupled organic matter, including some cellulose substances difficult to degrade are all decomposed in this stage,
When content of organics deficiency, system effectiveness declines, and temperature reduces, and enters temperature-fall period.Whole process, system maintain high temperature
Phases-time is shorter, therefore fermentation period is long, and system effectiveness is low, and the problem of will produce stench during the fermentation, these
All limit application of the composting technology in organic sludge treatment.
Accordingly, it is desirable to provide a kind of new, efficient organic sludge treatment method, it can be quickly by the organic matter in sludge
It decomposes, and removes the moisture in sludge, so as to shorten the process cycle of sludge aerobic fermentation, improve treatment effeciency, reduction processing
Cost.
Invention content
The present invention is directed to problems of the prior art, discloses a kind of quick processing dress of organic sludge desiccation stabilisation
It sets and processing method, by designing a kind of processing equipment of easy organic sludge, and meanwhile it is fast using the organic sludge of the equipment
The method of speed processing, can shorten fermentation time, improve organic sludge treatment efficiency, be suitable for large-scale promotion application, solve
Problems of the prior art.
The invention is realized in this way：
It includes fermentation cabin that the organic sludge desiccation of the present invention, which stabilizes quick treatment device, and the configuration of fermentation cabin can be as needed
It is designed to different, but to provide enough volumes, the good coefficient of conductivity, have temp probe inside fermentation cabin, object can be monitored
Material temperature degree.
Fermentation cabin bottom is provided with discharge port, and feed inlet, exhaust outlet are provided at the top of fermentation cabin；Inside the fermentation cabin
It is provided with heating device and Heat preservation layer, Heat preservation layer is as attemperator.By heating device in fermentation cabin
Portion's material is heated；Agitating device, temperature-detecting device are also associated with outside fermentation cabin, and agitating device, temperature detection fill
It sets and all extends to inside fermentation cabin；Temperature-detecting device is mounted in the fermentation cabin and extends to the inside of fermentation cabin for examining
The temperature of the materials inside of fermentation cabin is surveyed, temperature-detecting device is temperature sensor；Agitating device is mounted in fermentation cabin and prolongs
The inside of fermentation cabin is extended to for being stirred to fermentation cabin materials inside；The processing unit further includes control device, control
Device processed is separately connected heating device, temperature-detecting device and agitating device by signal.
Agitating device includes agitating paddle, stirring main shaft and stirring motor；Stirring main shaft runs through fermentation cabin；In fermentation cabin
It is provided with agitating paddle on the side of portion's stirring main shaft；Stirring main shaft is connect outside fermentation cabin with stirring motor.Agitating paddle need to carry
For good mixing effect, stirring main shaft and stirring motor should bear stirring resistance according to material and provide stirring power.
Further, the Heat preservation layer is made of heat preserving and insulating material and interlayer, is thermal medium, thermal medium in interlayer
For conduction oil or hot water, thermal medium is interior to be arranged temp probe.Can according to actual conditions, select conduction oil or hot water as
Medium.Heat preservation layer is arranged in fermentation cabin outer wall so that the present apparatus has heat insulation effect.Heating device can to thermal medium into
Row heating, transfers heat to material.
Further, the processing unit further includes ventilation device and deodorization device；The exhaust being wherein arranged in fermentation cabin
Mouthful, the exhaust outlet connects deodorization device by ventilation device gas circuit.Ensure that fermentation process has sufficient oxygen concentration, and will hair
The vapor and foul smell that ferment process generates are drawn to deodorization device, remove the toxic component in gas, to reach gas discharge
It is required that.Deodorization device can be deodorizing tower.Such as built-in deodorizing tower, built-in deodorizing tower is interior to be equipped with hypersober, can inhale
Toxic component in attached removing gas, to reach gas emission request.
Further, the fermentation cabin upstream of the processing unit also sets up organic sewage sludge feed device, organic sludge batch mixing
Device and organic sludge dehydration device.Organic sludge dehydration device is arranged in the upstream of the round, has by described
The dewatered organic sludge of machine sludge dehydration device carries out subsequent fermentation processing.Organic sludge dehydration device can be screw extrusion
Dehydration device.
Further, the fermentation cabin side of the processing unit is provided with observation window.
The invention also discloses a kind of processing method stabilizing quick treatment device using above-mentioned organic sludge desiccation,
Steps are as follows：
Step 1：Organic sludge is carried out dehydrating, it is -80% weight of 60% weight to be dehydrated to the moisture content of organic sludge；Institute
Organic sludge is called, refers to the sludge generated in sewage disposal process.Sewage can be sanitary sewage, can also be Industry Waste
Water.In order to reduce the moisture in organic sludge one step ahead, load is reduced, organic sludge is carried out dehydrating.At dehydration
The moisture content of organic sludge can be reduced to -80% weight of 60% weight by reason.
Step 2：Activation process is carried out to thermophilic compound bacteria；Wherein thermophilic compound bacteria is under the high temperature conditions（Such as 55-
80℃）Ability efficient-decomposition organic matter and the bacterium for discharging heat, can also be other Thermophilic Bacterias.
Step 3：By after activation thermophilic compound bacteria and organic sludge put together, be placed in fermentation cabin, while stirring
Heating heating, while monitoring the temperature of the mixture of stirring；To make thermophilic compound bacteria carry out high-temperature aerobic hair to organic sludge
Ferment obtains tunning, so that thermophilic compound bacteria is fermented rapidly from there through heating, and insufficient from heat production in thermophilic compound bacteria-fermented
Heating is assisted when maintaining high temperature, therefore, it is possible to quickly handle organic sludge, so that its quick desiccation is stabilized, so as to shorten having
The machine Treatment of Sludge period；
Step 4：Preset temperature value is set, temperature is the fermentation temperature of thermophilic compound bacteria；The preset value is set as needed
It is fixed, mainly determined according to the fermentation temperature of the thermophilic compound bacteria.
If the temperature of mixture reaches preset value, stop heating；
If the temperature of mixture be less than preset value, continue to heat, reach preset temperature organic sludge carry out aerobic fermentation 24 ~
Obtain tunning within 48 hours；In order to enable organic sludge fermentation completely and reaches innoxious requirement, the time of aerobic fermentation is
24 ~ 48 hours.
Step 5：After fermentation, exclusive segment material stays sub-fraction material.Take the fermentation of fraction in step 4
The thermophilic compound bacteria of product substitution activation carries out mixed fermentation with new pending organic sludge, ferments 24 ~ 48 hours, reach
It is less than 35% requirement to moisture percentage in sewage sludge, repeats step 3 ~ step 4, realization is continuously fermented.Most fermentation is discharged every time
Product, and the tunning of fraction and new organic sludge progress mixed fermentation are left, it is produced with the fermentation of the fraction left
Thermophilic compound bacteria in object carries out the desiccation stabilization processes of new organic sludge, realizes the purpose of continuing fermentation.The object stayed
The sub-fraction of material depends on the amount added next reaction time.For example next cycle adds new pending of 500kg
Sludge then stays 1000kg sludge.Ensure that tunning and new pending organic sludge ratio are 2：1, it is best anti-to obtain
Condition is answered, preferable effect can be reached.If being less than this ratio, fermentation time can increase.The material of exclusion, according to locating
The amount of harmful substance in the sludge of reason（Mainly heavy metal）If not exceeded, greening soil can be used as.If exceeded,
It then needs to carry out landfill disposal.
Further, the activation process is specially：Using sawdust, rice bran or stalk as auxiliary material, by auxiliary material：Strain
=100：1 ratio mixing, ventilation stirring, and control system temperature, make its reaction for 24 hours, complete actication of culture.Auxiliary material selects
Sawdust such as lignum cinnamomi camphorae sawdust（Various types sawdust plays the role of support and provides organic carbon）With rice bran such as rice rice
Chaff（Rice bran, rice chaff and the system chaff generated during paddy processing）.
Further, the thermophilic compound bacteria is bacillus, including Bacillus subtillis, bacillus amyloliquefaciens.
Further, the fermentation temperature is 55-80 DEG C, and heating is heated to set temperature in 1 hour.Because it is anti-
Answer temperature high, therefore decomposing organic matter rate is high, the generation cycle is short, is substantially shorter fermentation time.While in order to make institute as early as possible
Thermophilic compound bacteria-fermented is stated, the temperature of mixture reaches preset value after heating starts in 1 hour.
The advantageous effect of the present invention compared with prior art is：
1）So that thermophilic compound bacteria is carried out high-temperature aerobic fermentation to organic sludge and obtain tunning, makes from there through heating thermophilic multiple
Combined bacteria is fermented rapidly, and the auxiliary heating when thermophilic compound bacteria-fermented is not enough to maintain high temperature from heat production, therefore, it is possible to quickly locate
Organic sludge is managed, its quick desiccation is made to stabilize, so as to shorten the organic sludge treatment period, improves organic sludge treatment efficiency.
2）Device through the invention include include round（Fermentation cabin）, heating device, temperature-detecting device, control
Device and agitating device processed, control device are connected separately heating device, temperature-detecting device and agitating device；Heating device
Quickly heating makes thermophilic compound bacteria ferment rapidly, and auxiliary adds when thermophilic compound bacteria-fermented is not enough to maintain high temperature from heat production
Heat makes its quick desiccation stabilize therefore, it is possible to quickly handle organic sludge, so as to shorten the organic sludge treatment period, improves
Organic sludge treatment efficiency is suitable for large-scale promotion application.
3）Organic sludge can be quickly handled using the method for the present invention, so that its quick desiccation is stabilized, so as to shorten having
The machine Treatment of Sludge period improves organic sludge treatment efficiency, is suitable for large-scale promotion application；Secondly, method of the invention and
The microorganism fungus kind that coordinative composition of equipments uses can efficiently decompose the organic matter in organic sludge, heat production of fermenting, and remove
Moisture in sludge improves the efficiency of fermentation, shortens reaction time, solves defect in the prior art.
Description of the drawings
Fig. 1 is that a kind of organic sludge desiccation of the present invention stabilizes the schematic diagram of quick treatment device；
Fig. 2 is the schematic cross-sectional view that a kind of organic sludge desiccation of the present invention stabilizes the fermentation cabin of quick treatment device；
Wherein, 1- fermentation cabins, 2- feed inlets, 3- discharge ports, 4- exhaust outlets, 5- observation windows, 6- Heat preservation layers, 7- agitating paddles,
8- stirring main shafts, 9- stirring motors.
Specific implementation mode
It is clear to keep the purpose of the present invention, technical solution and effect clearer, referring to the drawings and give an actual example to this
Invention is further described.It should be understood that specific implementation described herein is not used to limit only to explain the present invention
The present invention.
Embodiment 1
By organic sludge（Specifically Suzhou chemical enterprise biochemistry pool sludge）Put into fermentation cabin.Start bacterium bed before, it is specific real
Apply mode be using sawdust, rice bran or stalk as auxiliary material, by Bacillus subtillis（Bacillus subtilis）Reconciliation is formed sediment
Afnyloliquefaciens（Bacillus amyloliquefaciens）Liquid Culture for 24 hours after, according to 1：1 ratio adds activation, uses
Sawdust, rice bran or stalk are as auxiliary material, by auxiliary material：Strain=100：1 ratio admixture activation.It is living after organic sludge adds
Strain after change：Organic sludge=2：1, carry out aerobic fermentation.Use agitating device（Using distribution blade formula agitating paddle）Rotating speed 5
Rev/min（It can also intermittent duty）Organic sludge and bacillus are stirred, pure water is heated using electrically heated rod, makes organic sludge
With bacillus to reach 60 DEG C of preset value in 1 hour, while passing through temperature sensor monitors organic sludge and bacillus
The temperature of the mixture of the temperature of fermentation system, i.e. organic sludge and bacillus stops adding if reaching 60 DEG C of preset value
Heat continues to heat if temperature is less than 60 DEG C of preset value, that is, maintains the temperature of mixture to be not less than 60 DEG C of preset value, maintain
Time is 48 hours, i.e. bacillus aerobic fermentation 48 hours, and organic sludge fermentation is complete（C/N ratios are less than 10）, germination
Index is more than 90%.
Comparative example 1
In addition to not using heating device and not controlling temperature, for other conditions with embodiment 1, bacillus aerobic fermentation 5 days is organic
Sludge fermentation is complete（C/N ratios are less than 10）, the moisture content of tunning is 40% weight（Measurement method is the same as embodiment 1）.
In addition to not using fermentation tank（Fermentation cabin 1）, heating device and agitating paddle 7, stirring main shaft 8 and stirring motor 9 and
Temperature is not controlled, only organic sludge and bacillus are put together, other conditions are the same as embodiment 1, bacillus aerobic fermentation
40 days, organic sludge fermentation was complete（C/N ratios are less than 10）, the moisture content of tunning is 40% weight（The same embodiment of measurement method
1）.
Embodiment 2
To organic sludge（Zhejiang dyestuff intermediate manufacturer biochemical sludge）, after high pressure frame dehydration, moisture content is in 60-
Between 65%, by the bacillus of activation（Bacillus subtillis（Bacillus subtilis）And bacillus amyloliquefaciens
（Bacillus amyloliquefaciens）（Number）Fermentation tank is added and carries out aerobic fermentation：Use agitating device（Using point
Dissipate blade stirrer paddle）5 revs/min of rotating speed（It can also intermittent duty）Organic sludge and bacillus are stirred, electrically heated rod is used
Pure water is heated, heats organic sludge and bacillus to reach 70 DEG C of preset value in 1 hour, while passing through temperature sensor
The temperature of organic sludge and fermentation of bacillus system, the i.e. temperature of the mixture of organic sludge and bacillus are monitored, if
Reach 70 DEG C of preset value, then stop heating, if temperature is less than 70 DEG C of preset value, continue to heat, that is, maintains the temperature of mixture
Degree is not less than 70 DEG C of preset value, and it is 36 hours to hold time, i.e. bacillus aerobic fermentation 36 hours, and organic sludge fermentation is complete
（C/N ratios are less than 10）, and the moisture content of tunning is 20%（Measurement method is the same as embodiment 1）.
Comparative example 2
In addition to not using heating device, other conditions are with embodiment 2, and bacillus aerobic fermentation 6 days, organic sludge fermentation is completely
（Organic sludge C/N ratios are less than 10）, the moisture content of tunning is 32% weight（Measurement method is the same as embodiment 1）.
In addition to not using fermentation cabin, heating device and agitating paddle 7, stirring main shaft 8 and stirring motor 9 and not controlling temperature
Degree, only puts organic sludge and bacillus together, and other conditions are the same as embodiment 2, aerobic fermentation 22 days, organic sludge fermentation
Completely（C/N ratios are less than 10）, the moisture content of tunning is 35% weight（Measurement method is the same as embodiment 1）.
Embodiment 3
To organic sludge（Specifically Shandong biopharmaceutical company biochemistry pool sludge）, after folded spiral shell dewaterer dehydration, sludge contains
Water rate is 84%, will be dehydrated the bacillus of organic sludge and activation（Bacillus subtillis（Bacillus subtilis）Reconciliation
Bacillus amyloliquefaciens（Bacillus amyloliquefaciens）Fermentation tank is added and carries out aerobic fermentation：Using agitating paddle 7, stir
Mix main shaft 8 and stirring motor 9（Using distribution blade formula agitating paddle）8 revs/min of rotating speed（It can also intermittent duty）Stir organic dirt
Mud and bacillus, using heating devices heat organic sludge and bacillus, can by the form of heating rod heat hot water,
To reach 75 DEG C of preset value in 1 hour, while passing through temperature sensor monitors organic sludge and fermentation of bacillus system
The temperature of the mixture of temperature, i.e. organic sludge and bacillus stops heating if reaching 75 DEG C of preset value, if warm
Degree is less than 75 DEG C of preset value, then continues to heat, that is, maintains the temperature of mixture to be not less than 75 DEG C of preset value, hold time small for 24
When, i.e. bacillus aerobic fermentation 24 hours, organic sludge fermentation is complete（C/N ratios are less than 10）, and the moisture content of tunning
For 15% weight（Measurement method is the same as embodiment 1）.
Comparative example 3
In addition to not using heating device and not controlling temperature, for other conditions with embodiment 3, bacillus aerobic fermentation 5 days is organic
Sludge fermentation is complete（C/N ratios are less than 10）, the moisture content of tunning is 37% weight（Measurement method is the same as embodiment 1）.
In addition to not using fermentation cabin, heating device and agitating paddle 7, stirring main shaft 8 and stirring motor 9 and not controlling temperature
Degree, only puts organic sludge and bacillus together, for other conditions with embodiment 3, bacillus aerobic fermentation 20 days is organic
Sludge fermentation is complete（C/N ratios are less than 10）, the moisture content of tunning is 42% weight（Measurement method is the same as embodiment 1）.
Embodiment 4
Organic sludge is put into fermentation cabin.Start bacterium bed before, using sawdust as auxiliary material, by Bacillus subtillis
（Bacillus subtilis）And bacillus amyloliquefaciens（Bacillus amyloliquefaciens）Liquid Culture for 24 hours after,
According to 1：1 ratio adds activation, by sawdust：Strain=100：1 ratio admixture activation.After organic sludge adds, after activation
Strain：Organic sludge=2：1, carry out aerobic fermentation.Using distribution blade formula agitating device, 5 revs/min of stirring organic sludges of rotating speed
And bacillus, pure water is heated using electrically heated rod, makes organic sludge and bacillus to reach preset value 60 in 1 hour
DEG C, while passing through the temperature of temperature sensor monitors organic sludge and fermentation of bacillus system, i.e. organic sludge and gemma bar
The temperature of the mixture of bacterium stops heating if reaching 60 DEG C of preset value, if temperature is less than 60 DEG C of preset value, continues
Heating maintains the temperature of mixture to be not less than 60 DEG C of preset value, it is 48 hours, i.e. bacillus aerobic fermentation 48 to hold time
Hour, organic sludge fermentation is complete（C/N ratios are less than 10）, seed germination index is more than 90%.
The thermophilic compound bacteria for leaving the tunning substitution activation of fraction, is mixed with new pending organic sludge
Fermentation is closed, is fermented 48 hours, wherein the tunning left：New pending organic sludge=2：1.It in this approach can be real
Existing continuing fermentation.
Above example 1 and the fermentation embodiment that embodiment 3 is single batch of organic sludge are set if to continuously ferment
Standby discharge not exclusively empties, and retains a certain number of tunnings, wherein containing a large amount of thermophilic compound bacteria, is then added newly
Organic sludge, by stirring, new organic sludge comes into full contact with thermophilic compound bacteria, material can be made warm in 1h by heating
More than 60 DEG C, thermophilic compound bacteria starts to play a role degree, substantially reduces the reaction time.It is a part of organic by fermentation reaction
Object is converted into CO2And H2O, remaining is used for the proliferation of microbial cell and is converted into humus, while discharging heat, for tieing up
Hold system temperature.Meanwhile temperature control makes system keep temperature relative constant.Strain is disposably added when equipment starts, it
After can be supplemented according to actual motion effect selection, it is general to supplement the period at 6 months or more.It can select to discharge daily, also may be used
Discharging time is selected according to inventory in round.But keep organic sludge the system residence time be more than for 24 hours, with ensure
Fermentation is complete and reaches innoxious requirement.
Therefore, the present invention relates to a kind of organic sludge desiccation being combined from heat production with heat source using thermophilic compound bacteria-fermented
Stabilization technology improves system effectiveness by being used cooperatively for equipment and microbial inoculum, shortens fermentation period.Organic sludge, which enters, is
After system, by the heating of heat source, temperature of charge is made to be increased to 60 DEG C or more in 1h, at this point, the thermophilic composite bacteria agent added is opened
Beginning decomposing organic matter discharges heat, maintains system temperature.When organic matter deficiency, after system temperature declines, by supplementing extraneous heat
Source keeps temperature.Whole system temperature maintains hot stage always, and fermentation efficiency is high, and the period is short, meanwhile, system temperature is high,
Be conducive to the removal of moisture, the moisture content of final product can drop to 30% hereinafter, reduction is notable.
The core of entire method is temperature control, and with the fermentation of thermophilic compound bacteria based on the heat production, external heat source is heat source
It is auxiliary, it is reacted by hot fermentation, realizes the innoxious and stabilisation of organic matter in organic sludge, meanwhile, go moisture removal, realization to subtract
Amount.
Compared with other organic matter composting technologies, because system passes through the side of additional heat and the addition thermophilic compound bacteria of high temperature
Formula shortens the compost time.The non-reactor compost of tradition needs 20d or more, traditional equipment compost to need 5d or more, and of the invention
Only need 1-2d.
Compared with drying technique, for the present invention because making full use of organic matter to decompose heat production, consumption of heat energy is small.Meanwhile because having
Machine object is decomposed during the fermentation, therefore reduces constraint of the organic matter to moisture, and moisture removal is made to be more prone to.
The present invention method be mainly used for organic sludge processing, it can be achieved that organic sludge innoxious and minimizing, production
Product have certain fertility, can be according to actual conditions for producing organic fertilizer.
To sum up, organic sludge desiccation of the invention, which stabilizes immediate processing method, can quickly handle organic sludge, make it
Quick desiccation stabilizes, and so as to shorten the organic sludge treatment period, improves organic sludge treatment efficiency, and ingenious in design, operation
Simplicity is suitable for large-scale promotion application.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (10)
1. a kind of organic sludge desiccation stabilizes quick treatment device, which is characterized in that the device includes
Fermentation cabin（1）, fermentation cabin（1）Bottom is provided with discharge port（3）, fermentation cabin（1）Top is provided with feed inlet（2）, exhaust
Mouthful（4）；The fermentation cabin（1）It is internally provided with heating device and fermentation cabin（1）The Heat preservation layer of outer wall（6）；Fermentation
Storehouse（1）Outside is also associated with agitating device, temperature-detecting device, and agitating device, temperature-detecting device all extend to fermentation cabin
（1）It is internal；The processing unit further includes control device, and control device is separately connected heating device by signal, temperature is examined
Survey device and agitating device；The agitating device includes agitating paddle（7）, stirring main shaft（8）And stirring motor（9）；It is described
Stirring main shaft（8）Through fermentation cabin（1）It is internal；Positioned at fermentation cabin（1）Internal stirring main shaft（8）Side on be provided with agitating paddle
（7）；Stirring main shaft（8）In fermentation cabin（1）External and stirring motor（9）Connection.
2. a kind of organic sludge desiccation according to claim 1 stabilizes quick treatment device, which is characterized in that described
Heat preservation layer（6）It being made of heat preserving and insulating material and interlayer, is thermal medium in interlayer, thermal medium is conduction oil or hot water,
Temp probe is set in thermal medium.
3. a kind of organic sludge desiccation according to claim 1 stabilizes quick treatment device, which is characterized in that described
Processing unit further includes ventilation device and deodorization device；Wherein fermentation cabin（1）The exhaust outlet of upper setting（4）, the exhaust outlet（4）
Deodorization device is connected by ventilation device gas circuit.
4. a kind of organic sludge desiccation according to claim 1 stabilizes quick treatment device, which is characterized in that described
The fermentation cabin of processing unit（1）It is de- that upstream also sets up organic sewage sludge feed device, organic sludge mixing device and organic sludge
Water installations.
5. a kind of organic sludge desiccation according to claim 1 stabilizes quick treatment device, which is characterized in that the place
Manage the fermentation cabin of device（1）Side is provided with observation window（5）.
6. a kind of processing method stabilizing quick treatment device using organic sludge desiccation described in claim 1, feature
It is, steps are as follows：
Step 1：Organic sludge is carried out dehydrating, it is 60% -80% to be dehydrated to the moisture content of organic sludge, and moisture content is with weight
Gauge；
Step 2：Activation process is carried out to thermophilic compound bacteria；
Step 3：By after activation thermophilic compound bacteria and organic sludge be placed in fermentation cabin, warming while stirring heating, supervise simultaneously
Survey the temperature of the mixture of stirring；
Step 4：Preset temperature value is set, temperature is the fermentation temperature of thermophilic compound bacteria；
If the temperature of mixture reaches preset value, stop heating；
If the temperature of mixture be less than preset value, continue to heat, reach preset temperature organic sludge carry out aerobic fermentation 24 ~
Obtain tunning within 48 hours；
Step 5：The tunning of part in step 4 is taken to replace the thermophilic compound bacteria of activation, with new pending organic dirt
Mud carries out mixed fermentation, ferments 24 ~ 48 hours, repeats step 3 ~ step 4, and realization is continuously fermented.
7. organic sludge desiccation according to claim 6 stabilizes the processing method of quick treatment device, which is characterized in that
The ratio of tunning and new pending organic sludge in the step five is 2：1.
8. organic sludge desiccation according to claim 6 stabilizes the processing method of quick treatment device, which is characterized in that
The activation process is specially：
Using sawdust, rice bran or stalk as auxiliary material, by auxiliary material：Thermophilic compound bacteria=100：1 ratio mixing, ventilation stirring,
And control system temperature makes its reaction for 24 hours, completes actication of culture.
9. organic sludge desiccation according to claim 6 stabilizes the processing method of quick treatment device, which is characterized in that
The thermophilic compound bacteria is bacillus, including Bacillus subtillis and bacillus amyloliquefaciens, Bacillus subtillis：Xie Dian
Afnyloliquefaciens=1:1；And the thermophilic compound bacteria after activating：Organic sludge=2:1.
10. organic sludge desiccation according to claim 6 stabilizes the processing method of quick treatment device, feature exists
In the fermentation temperature is 55-80 DEG C, and heating is heated to set temperature in 1 hour.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109956634A (en) * | 2019-03-14 | 2019-07-02 | 江苏雷蒙新材料有限公司 | The method for innocent treatment of excess sludge after a kind of organic chemical waste water biochemical treatment |
| CN110316916A (en) * | 2019-05-27 | 2019-10-11 | 东莞市太龙湾建设工程有限公司 | Advanced treatment process and system for ecological sludge disposal |
| CN110330201A (en) * | 2019-08-12 | 2019-10-15 | 泰安清源水务有限公司 | A kind of municipal sludge high temperature pure oxygen aeration fermentative production system and technique |
| CN110591974A (en) * | 2019-10-17 | 2019-12-20 | 湖南洁源生物能源科技有限公司 | Preparation and use method of thermophilic microbial agent for leather sludge drying |
| CN110790465A (en) * | 2019-11-28 | 2020-02-14 | 李健 | Sludge fermentation machine capable of intelligently and rapidly treating eighty percent of water content at high temperature |
| CN113800741A (en) * | 2021-09-29 | 2021-12-17 | 山东尚科环境工程有限公司 | High-temperature and low-temperature drying treatment method for heavy metal-containing industrial sludge |
| CN115707674A (en) * | 2022-11-02 | 2023-02-21 | 中建能源管理(辽宁)有限公司 | Method for treating domestic sludge by fermenting ultrahigh-temperature aerobic microorganisms |
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| CN1712386A (en) * | 2004-06-14 | 2005-12-28 | 宁波杉杉环保发展有限公司 | High-temperature aerobic fermentation of organic refuse material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109956634A (en) * | 2019-03-14 | 2019-07-02 | 江苏雷蒙新材料有限公司 | The method for innocent treatment of excess sludge after a kind of organic chemical waste water biochemical treatment |
| CN110316916A (en) * | 2019-05-27 | 2019-10-11 | 东莞市太龙湾建设工程有限公司 | Advanced treatment process and system for ecological sludge disposal |
| CN110330201A (en) * | 2019-08-12 | 2019-10-15 | 泰安清源水务有限公司 | A kind of municipal sludge high temperature pure oxygen aeration fermentative production system and technique |
| CN110591974A (en) * | 2019-10-17 | 2019-12-20 | 湖南洁源生物能源科技有限公司 | Preparation and use method of thermophilic microbial agent for leather sludge drying |
| CN110790465A (en) * | 2019-11-28 | 2020-02-14 | 李健 | Sludge fermentation machine capable of intelligently and rapidly treating eighty percent of water content at high temperature |
| CN113800741A (en) * | 2021-09-29 | 2021-12-17 | 山东尚科环境工程有限公司 | High-temperature and low-temperature drying treatment method for heavy metal-containing industrial sludge |
| CN115707674A (en) * | 2022-11-02 | 2023-02-21 | 中建能源管理(辽宁)有限公司 | Method for treating domestic sludge by fermenting ultrahigh-temperature aerobic microorganisms |
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