CN105837005B - Municipal biological dewatered organic conditioner of excess sludge and preparation method thereof - Google Patents
Municipal biological dewatered organic conditioner of excess sludge and preparation method thereof Download PDFInfo
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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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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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
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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
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
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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
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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Abstract
Biological dewatered organic conditioner of a kind of municipal administration excess sludge and preparation method thereof, belongs to field of environment engineering technology.The present invention uses the remaining useless bacteria residue of cellulase fermentations and furfural dregs to add in trichoderma asperellum conidia powder, iron powder etc. after baked charing for main matrix, the organic conditioner biological dewatered available for excess sludge is prepared into after compounding briquetting.Organic conditioner of the present invention can be obviously promoted sludge organism drying process and start, improve part contaminant degradation efficiency and the advantageous effects such as heavy metal-passivated in sludge.Organic conditioner prepared by the present invention can be used for municipal excess sludge to handle disposal field.
Description
Technical field
The present invention relates to biological dewatered organic conditioners of a kind of municipal excess sludge and preparation method thereof, belong to environmental project
Field.
Background technology
With the quickening of China's Development of China's Urbanization and the raising of environmental quality standards, sewage load improves year by year.Sludge
As the by-product of the volume maximum during municipal sewage treatment, growing amount is also increasing sharply, what these were largely generated
Excess sludge increasingly becomes serious environment and with social concern the whole society is subject to pay close attention to.
Due to containing substantial amounts of moisture in municipal sludge（80% or so）, it is not easy to be dehydrated, content of organics is more, and property is unstable
It is fixed, it is necessary to be just further processed disposal by processes such as dehydration, desiccation.Heat drying technology is mainly taken in sludge dewatering at present,
Equipment cost is very high, and must utilize external heat source ability normal operation, therefore its energy consumption is high.Sludge organism drying technique is profit
With biological heat energy caused by organic matter degradation during microorganism high-temperature aerobic fermentation, pass through the processes such as forced ventilation, stirring
Control measures promote the rapid evaporation removal of moisture in sludge, so as to fulfill sewage sludge harmlessness, stabilisation and the purpose of minimizing.
The technology has many advantages, such as that low energy consumption, at low cost, wide adaptation range, tallies with the national condition, and has in terms of municipal sludge is disposed
Important promotional value.It is at abroad, Italian（1996）With Germany（1997）Industrial applications have been carried out to it first.Study table
Bright, after biological dewatered, moisture content is decreased obviously municipal refuse.Method as making derivatived fuel (RDF) or is made for this
It is applied to World Developed Countries for the preprocessing means of waste incineration.In conclusion sludge organism drying technique is great development
The specific resistance to filtration technology of prospect, but presently, there are the problems such as auxiliary material additive amount is big, processing time is long.It is biological dewatered common
Auxiliary material is generally agricultural crop straw, and a large amount of manpower and materials can be consumed by receiving transporting procedures, and biological dewatered engineering cost is caused to rise.
Zhu Juanjuan（Zhu Juanjuan granulate the modification of conditioner and application study [D] master thesis, He'nan University of Technology Zheng
State: 2014）More in-depth study discussion has been carried out to sludge aerobic compost conditioner, has passed through physical modification（Blasting procedure）, change
It learns and is modified（Carboxy methylation）, bio-modification（It is lactobacillus forced）It develops a variety of conditioners and analysis is compared to its function,
There is some reference value to the exploitation of sludge organism desiccation conditioner.But the conditioner primary raw material addressed is agriculture waste
Object, because it is without process such as bakings, moisture is usually higher, is easily broken, and is unfavorable for reusing.Middle promulgated by the State Council
Bright application for patent 201210550977.1 provides a kind of sludge organism desiccation conditioner, consisting of straw, sawdust or
It is the mixture of straw, sawdust to be mixed to form in equal volume, major function is the oxygen that can be improved in biological dewatered heap body
Supply, the combustion heat value of dewatered sludge product can simultaneously be improved by quickly starting biological dewatered process.Conditioner used in the invention
Ingredient is more single, and major function is to adjust the carbon-nitrogen rate and gas permeability of sludge, does not possess other functions（As microorganism is strong
Change, some of the contaminants degradation or passivation etc.）.The adding proportion into sludge of Chinese invention patent 200810239356.5 is done for sludge
The lime for weighing 10% cracks agent as alkalescence, adds broken stalk after mixing as conditioner, conditioner weight accounts for mixed
The 35% of material gross weight is closed, compost clinker is added in and is inoculated with as Inoculant.The invention carries out alkalescence using lime to sludge
Stalk is added after cracking and adjusts carbon-nitrogen rate, gas permeability etc., and tieback kind is carried out to sludge using clinker, sludge can be promoted to give birth to
Object desiccation quickly starts.However, that product easy to use, additive amount are not formed there is complex disposal process, is big etc. for the invention
Defect, there is many restrictions in practical applications.
Furfural dregs are to utilize the discarded object generated after biomass material such as corncob, stalk, rice husk production furfural, master
It is moisture to want feature, salt content is high, acidity is big and has peculiar smell, and arbitrarily discharge has environment and water body serious pollution to ask
Topic.Due to, still containing substantial amounts of cellulose, hemicellulose and lignin etc., there are recycling potentiality in furfural dregs.
Filamentous fungi is the important production strain of fermentation industry, for itaconic acid, citric acid, fungal amylase, cellulose
Among the production of the multiple products such as enzyme, sodium gluconate, penicillin.Currently, the production of cellulase has become China the 4th
Big enzyme, and its fermentation method is mainly liquid state fermentation, a large amount of waste mycelias generated in fermentation process seriously pollute environment,
Urgently handle.Containing chitin ingredient in fermentation fungi filament, and remain portion of cellulose ingredient（Such as wheat bran, microcrystalline cellulose
Element etc.）Class substance has good biological adsorption, is a kind of functional biological materials with wide application potential.However,
At present microbial fermentation bacteria residue because the problems such as water content is high, viscosity is big be faced with arbitrarily throw aside, it is seriously polluted to surrounding enviroment, provide
Sourceization is big using difficulty and easily forms secondary pollution problems.
The present invention is asked for auxiliary material utilization ratio in sludge organism drying process is low, dosage is big and biological dewatered efficiency is low etc.
Topic；And the useless bacteria residue and furfural dregs generated in cellulase production processes develops a kind of excess sludge life as main matrix
Functional organic conditioner of object desiccation and preparation method thereof, can effectively improve auxiliary material utilization rate while turning waste into wealth, and
Realize that it is recycled by recycling, so as to improve the treatment effeciency of sludge, also simultaneously give up to cellulase fermentations bacteria residue and chaff
Aldehyde slag has carried out comprehensive utilization exploitation, and new way is provided for the recycling of organic solid castoff.
The content of the invention
For the problems of prior art and deficiency, it is an object of the present invention to provide a kind of municipal excess sludge biology is dry
Change organic conditioner and preparation method thereof.This method prepares sludge organism desiccation as matrix by the use of useless bacteria residue and furfural dregs and nurses one's health
Agent, can while the recycling of useless bacteria residue is realized development functionality biological dewatered organic conditioner, have very
Wide application prospect.
The raw materials used in the present invention is given up bacteria residue for cellulase fermentations, and bacterial strain uses therefor is trichoderma asperellum CCTCC No.M
2014001 trichoderma asperellum CGM-10（Trichoderma asperellum CGM-10）, bacterial strain is in guarantor's on January 6th, 2014
It is hidden in China typical culture collection center（CCTCC）, deposit number is CCTCC No.M 2014001, and address is military for Wuhan City
Chinese university.
A kind of preparation method of the biological dewatered organic conditioner of municipal administration excess sludge, specific steps include：（1）It will be organic
Discarded object cellulase fermentations give up bacteria residue and furfural dregs are according to parts by weight（0.5-1）The ratio of ︰ 1 is sufficiently mixed, by crushing
10 mesh sieves are crossed afterwards, are then placed in atmosphere furnace, will be passed through nitrogen after atmosphere stove evacuation, proceed by low temperature baking；Atmosphere is set
Stove is with 10 DEG C/min of rates by room temperature to 450 DEG C；After being warming up to maximum temperature, high temperature keeps being carbonized for 120 minutes
Material；Stop heating, be naturally cooling to room temperature, obtain conditioner matrix；（2）Preserving number is added according to every 1000 grams of conditioner matrix
For 0.1 gram -1 gram of the trichoderma asperellum CGM-10 spores powder of CCTCC No. M 2014001, biological reinforced conditioner base is obtained
Matter；（3）10 grams -100 grams of iron powder of 10-100 microns of grain size is added according to every 1000 grams biological reinforced conditioner matrix, is uniformly mixed
After be prepared into 1-3 centimetres of diameter, the biological dewatered organic conditioner of municipal excess sludge of 1-4 centimetres of length.
The biological dewatered organic conditioner of a kind of municipal administration excess sludge, it is characterized in that it includes following component：Organic waste
Cellulase fermentations give up bacteria residue and furfural dregs are according to weight ratio（0.5-1）︰ 1 is mixed, then in every 1000 grams of mixtures
It is middle to add in 0.1 gram -1 gram of the trichoderma asperellum CGM-10 spores powder that preserving number is CCTCC No.M 2014001, grain size 10-
The biological dewatered organic conditioner of municipal excess sludge is obtained after 100 microns 10 grams of -100 grams of compoundings of iron powder.
Trichoderma asperellum CGM-10 of the present invention（Preserving number is CCTCC No. M 2014001）The preparation method of conidia powder
It is as follows：
（1）Activation medium：200 grams of potato extracting solution, 20 grams of glucose, 1000 milliliters of tap water, 20 grams of agar, pH
5.0.Wherein potato extracting solution refers to that 200 grams of potato, stripping and slicing uses crocus cloth after boiling 30 minutes（80-150 mesh）Gained after filtering
Clarify extracting solution.
（2）The preparation of trichoderma asperellum conidia powder：Trichoderma asperellum CGM-10 is inoculated on activation medium, is trained under the conditions of 30 DEG C
It supports 10 days, spore is collected after green spores are covered on tablet and slightly grinding obtains loose conidia powder.
The cellulase fermentations of the present invention bacteria residue that gives up refers to give birth to using liquid fermentation mode using the bacterial strains such as trichoderma, aspergillus
Cellulase-producing, the useless bacteria residue generated after filtered processing.
Furfural dregs of the present invention refer to using remaining after the biomass materials such as corncob, stalk or rice husk extraction furfural
Discarded object.Above-mentioned cellulase fermentations give up bacteria residue and furfural dregs are needed by drying process, and water content is less than 30%.Spine
Spore trichoderma CGM-10 is screened from municipal sludge to be obtained.
In the present invention unless otherwise specified, raw material dosage is parts by weight.
The invention has the advantages that：A kind of excellent organic conditioner for sludge is provided, the conditioner is using discarded
Prepared by give up bacteria residue and furfural dregs of fibres element enzyme fermentation, can realize the recycling of solid waste to greatest extent.It has
Body is analyzed as follows：1. the municipal administration biological dewatered organic conditioner of excess sludge of the present invention adds strain trichoderma asperellum
（Trichoderma asperellumCGM-10）Conidia powder has carried out microbial augmentation.The bacterial strain passes through physics and chemistry behavior,
It is fast with the speed of growth, the characteristics of acid amount is high is produced, advantageously reduces the pH value during sludge fermentation, the row of odorous gas ammonia
More than 80% is high-volume reduced, this is of great significance to the preservation of organic matter in biological dewatered or sludge.In addition, the bacterial strain is also
Laccase can be produced, the harmful substance in the fermentation substrates such as sludge that can degrade.The acidity that a large amount of organic acids of strain secretes generate
Microenvironment also provides good condition for the normal work of iron carbon microelectrode.
2. the municipal administration biological dewatered organic conditioner of excess sludge of the present invention is also added into iron powder, so as in conditioner
Inside forms iron carbon microelectrode, can improve the Degradation Level of organic pollution, reduce the harmful substance in final products.
3. the municipal administration biological dewatered organic conditioner of excess sludge of the present invention is given up bacteria residue and chaff using cellulase fermentations
Prepared by aldehyde slag, due to containing the ingredients such as part chitin, wheat bran and microcrystalline cellulose in useless bacteria residue, and contain in furfural dregs
Abundant lignocellulosic, lignin etc. form micropore and charcoal particle after part carbonizes, adsorption capacity significantly on
It rises and of low cost（Compared with lignocellulosic source organism carbon adsorbent cost reduction more than 70%）, so that of the present invention
Conditioner has good absorption property, can be to such as heavy metal, organic pollution the carry out portion of the harmful substance in fermentation substrate
Divide absorption causes secondary pollution so as to which it be avoided further to scatter and disappear.Directly can not substantially it be carried using dry useless bacteria residue and furfural dregs
The absorption property of high conditioner.Experiments have shown that it is charing without the adsorptivity of the useless bacteria residue and furfural dregs that bake charing process
The 20-30% of useless bacteria residue afterwards.
4. furfural dregs have acidity, the pH value in fermentation process can be reduced, the auxiliary material with being not added with furfural dregs compares, hair
Total ammonia emission amount declines more than 90% during ferment.The biological dewatered organic conditioner production of municipal excess sludge prepared by the present invention
Product granular size is moderate, and the gas permeability of fermentation substrate can be greatly improved after excess sludge is added in, is conducive to the fast of microorganism
Speed multiplication, accelerates biological dewatered speed and treatment effeciency.It can shorten compared with not molding its drying time of powdered conditioner
3-5 days, highest heap temperature can improve 8-12 DEG C, and more than 50 DEG C times can extend 2-3 days.
Specific embodiment
Invention is further described with reference to embodiments.
Embodiment 1：A kind of preparation method of the biological dewatered organic conditioner of municipal administration excess sludge, it includes the following steps：
（1）The preparation of conditioner matrix：Cellulase fermentations after drying are given up into bacteria residue and furfural dregs according to the ratio that parts by weight are 0.5 ︰ 1
Example is sufficiently mixed, and by smashing it through 10 mesh sieves, is then placed in atmosphere furnace, will be passed through nitrogen after atmosphere stove evacuation, start into
Row low temperature bakes；Setting atmosphere furnace is with 10 DEG C/min of rates by room temperature to 450 DEG C；450 DEG C are kept for 120 minutes；Stop adding
Heat is naturally cooling to room temperature, obtains conditioner matrix.（2）The preparation of biological reinforced conditioner matrix：It is CCTCC by preserving number
No. 0.1 gram of addition of the trichoderma asperellum CGM-10 spores powder of M 2014001,1000 grams of steps（1）The conditioner base of middle acquisition
Matter obtains biological reinforced conditioner matrix as microbial augmentation biological adsorption agent after mixing.（3）Municipal excess sludge biology is dry
Change the preparation of organic conditioner：Iron powder is added in 1000 grams through step for 10 grams（2）In the microbial augmentation conditioner matrix of acquisition,
1 centimetre of diameter, the biological dewatered organic conditioner of municipal excess sludge of 1 centimetre of length are prepared into after mixing.
It is 65% by the organic conditioner obtained through the present embodiment and municipal excess sludge Mixed adjustment water content, takes 30 public affairs
Jin material carries out biological dewatered processing 7 days in 50 liters of GRTL-D-50D type solid-state fermentation tanks, during which divulges information daily 6 times, divulges information
It measures as 0.3 ︰ 1（Volume ratio, is subject to sludge actual volume）, each duration is 30 minutes；It is stirred, turns during ventilation
Speed is 5 revs/min, and the duration is 10 minutes.It is disposed to obtain the biological dewatered sludge product of water content 48%.
By it is above-mentioned it is biological dewatered during organic conditioner change sawdust and crushing straw into, other conditions remain unchanged,
Water content of substrate is respectively 55% and 52% after being disposed.
By the pretreated municipal excess sludge of the organic conditioner obtained through the present embodiment and NaOH（Municipal dewatered sludge
Initial water content 80% takes 40 kilograms of sludge, is handled 3 days under the conditions of 320 grams, 30 DEG C of sodium hydroxide of addition）, Mixed adjustment is aqueous
It measures as 65%, 30 kilograms of materials is taken to carry out biological dewatered processing 7 days in 50 liters of GRTL-D-50D type solid-state fermentation tanks, it is during which every
Day ventilation 6 times, ventilation quantity are 0.3 ︰ 1（Volume ratio, is subject to sludge actual volume）, each duration is 20 minutes；Ventilation
When be stirred, rotating speed be 5 revs/min, the duration be 10 minutes.It is disposed to obtain the biological dewatered dirt of water content 39%
Mud product.
By it is above-mentioned it is biological dewatered during organic conditioner change sawdust and crushing straw into, other conditions remain unchanged,
Water content of substrate is respectively 46% and 43% after being disposed.
Concrete outcome is shown in Table 1.The 1 organic conditioner of the present invention of table is compared with other conditioner effects
The present embodiment is with obvious effects to sludge reduction, and treated, and effectively heavy metal and polycyclic aromatic hydrocarbon removal rate is far above
Control group can be used for soil remediation, charcoal soil or afforestation soil, Nutrition Soil etc..
Embodiment 2：The preparation method of the municipal biological dewatered organic conditioner of excess sludge, it includes the following steps：（1）It adjusts
Manage the preparation of agent matrix：Give up bacteria residue and furfural dregs of cellulase fermentations after drying are filled according to the ratio that parts by weight are 0.8 ︰ 1
Divide mixing, by smashing it through 10 mesh sieves, be then placed in atmosphere furnace, nitrogen will be passed through after atmosphere stove evacuation, proceeded by low
Temperature bakes；Setting atmosphere furnace is with 10 DEG C/min of rates by room temperature to 450 DEG C；It is kept for 120 minutes；Stop heating, drop naturally
It warms to room temperature, obtains conditioner matrix.（2）The preparation of biological reinforced conditioner matrix：It is CCTCC No. M by preserving number
2014001 trichoderma asperellum CGM-10 spores powder 0.5 gram of addition, 1000 grams of steps（1）The conditioner matrix of middle acquisition, mixing
After obtain biological reinforced conditioner matrix as microbial augmentation biological adsorption agent.（3）Municipal excess sludge is biological dewatered organic
The preparation of conditioner：Iron powder is added in 1000 grams through step for 100 grams（2）In the microbial augmentation biological adsorption agent of acquisition, mixing
2 centimetres of diameter, the biological dewatered organic conditioner of municipal excess sludge of 3 centimetres of length are prepared into after uniformly.
It is 65% by the organic conditioner obtained through the present embodiment and municipal excess sludge Mixed adjustment water content, takes 30 public affairs
Jin material carries out biological dewatered processing 7 days in 50 liters of GRTL-D-50D type solid-state fermentation tanks, during which divulges information daily 12 times, leads to
Air quantity is 0.5 ︰ 1（Volume ratio, is subject to sludge actual volume）, each duration is 30 minutes；It is stirred during ventilation,
Rotating speed is 5 revs/min, and the duration is 15 minutes.It is disposed to obtain the biological dewatered sludge product of water content 40%.
By it is above-mentioned it is biological dewatered during organic conditioner change sawdust and crushing straw into, other conditions remain unchanged,
Water content of substrate is respectively 53% and 51% after being disposed.
By the pretreated municipal excess sludge of the organic conditioner obtained through the present embodiment and NaOH（Municipal dewatered sludge
Initial water content 80% takes 40 kilograms of sludge, is handled 3 days under the conditions of 320 grams, 30 DEG C of sodium hydroxide of addition）, Mixed adjustment is aqueous
It measures as 65%, 30 kilograms of materials is taken to carry out biological dewatered processing 7 days in 50 liters of GRTL-D-50D type solid-state fermentation tanks, it is during which every
Day ventilation 12 times, ventilation quantity are 0.5 ︰ 1（Volume ratio, is subject to sludge actual volume）, each duration is 30 minutes；It is logical
It is stirred during wind, rotating speed is 8 revs/min, and the duration is 15 minutes.It is disposed to obtain the biological dewatered of water content 35%
Sludge product.
By it is above-mentioned it is biological dewatered during organic conditioner change sawdust and crushing straw into, other conditions remain unchanged,
Water content of substrate is respectively 43% and 41% after being disposed.Specifically it is shown in Table 2.The 2 organic conditioner of the present invention of table and other conditioners
Effect compares
The present embodiment is with obvious effects to sludge reduction, and treated, and effectively heavy metal and polycyclic aromatic hydrocarbon removal rate is far above
Control group can be used for soil remediation, charcoal soil or afforestation soil, Nutrition Soil etc..
Embodiment 3：Municipal biological dewatered organic conditioner of excess sludge and preparation method thereof, it includes the following steps：（1）
The preparation of conditioner matrix：Give up bacteria residue and furfural dregs of cellulase fermentations after drying are filled according to the ratio that parts by weight are 1 ︰ 1
Divide mixing, by smashing it through 10 mesh sieves, be then placed in atmosphere furnace, nitrogen will be passed through after atmosphere stove evacuation, proceeded by low
Temperature bakes；Setting atmosphere furnace is with 10 DEG C/min of rates by room temperature to 450 DEG C；It is kept for 60 minutes；Stop heating, drop naturally
It warms to room temperature, obtains conditioner matrix.（2）The preparation of biological reinforced conditioner matrix：It is CCTCC No. M by preserving number
2014001 trichoderma asperellum CGM-10 spores powder 1 gram of addition, 1000 grams of steps（1）The carbonized material of middle acquisition obtains after mixing
Biological reinforced conditioner matrix is as microbial augmentation biological adsorption agent.（3）The municipal biological dewatered organic conditioner of excess sludge
Preparation：Iron powder is added in 1000 grams through step for 50 grams（2）In the microbial augmentation biological adsorption agent of acquisition, make after mixing
It is standby into 3 centimetres of diameter, the biological dewatered organic conditioner of municipal excess sludge of 4 centimetres of length.Have what is obtained through the present embodiment
Machine conditioner is 65% with municipal excess sludge Mixed adjustment water content, takes 30 kilograms of materials in 50 liters of GRTL-D-50D type solids
Biological dewatered processing 7 days is carried out in fermentation tank, is during which divulged information daily 12 times, ventilation quantity is 0.6 ︰ 1（Volume ratio is actual with sludge
Subject to volume）, each duration is 40 minutes；It is stirred during ventilation, rotating speed is 10 revs/min, and the duration is 15 points
Clock.It is disposed to obtain the biological dewatered sludge product of water content 41%.
By it is above-mentioned it is biological dewatered during organic conditioner change sawdust and crushing straw into, other conditions remain unchanged,
Water content of substrate is respectively 52% and 49% after being disposed.
By the pretreated municipal excess sludge of the organic conditioner obtained through the present embodiment and NaOH（Municipal dewatered sludge
Initial water content 80% takes 40 kilograms of sludge, is handled 3 days under the conditions of 320 grams, 30 DEG C of sodium hydroxide of addition）, Mixed adjustment is aqueous
It measures as 65%, 30 kilograms of materials is taken to carry out biological dewatered processing 7 days in 50 liters of GRTL-D-50D type solid-state fermentation tanks, it is during which every
Day ventilation 12 times, ventilation quantity are 0.5 ︰ 1（Volume ratio, is subject to sludge actual volume）, each duration is 30 minutes；It is logical
It is stirred during wind, rotating speed is 5 revs/min, and the duration is 15 minutes.It is disposed to obtain the biological dewatered of water content 38%
Sludge product.
By it is above-mentioned it is biological dewatered during organic conditioner change sawdust and crushing straw into, other conditions remain unchanged,
Water content of substrate is respectively 53% and 50% after being disposed.Specifically it is shown in Table 3.The 3 organic conditioner of the present invention of table and other conditioners
Effect compares
The present embodiment is with obvious effects to sludge reduction, and treated, and effectively heavy metal and polycyclic aromatic hydrocarbon removal rate is far above
Control group can be used for soil remediation, charcoal soil or afforestation soil, Nutrition Soil etc..
Embodiment 4：A kind of biological dewatered organic conditioner of municipal administration excess sludge, it includes following component：Organic waste
Cellulase fermentations give up bacteria residue and furfural dregs are according to weight ratio（0.5-1）︰ 1 is mixed, then in every 1000 grams of mixtures
It is middle to add in 0.1 gram -1 gram of the trichoderma asperellum CGM-10 spores powder that preserving number is CCTCC No. M 2014001, grain size 10-
The biological dewatered organic conditioner of municipal excess sludge is obtained after 100 microns 10 grams of -100 grams of compoundings of iron powder.
Claims (2)
1. a kind of preparation method of municipal administration excess sludge biological dewatered organic conditioner, it is characterized in that by organic waste cellulose
Enzyme fermentation gives up bacteria residue and furfural dregs are according to parts by weight（0.5-1）The ratio of ︰ 1 is sufficiently mixed, by smashing it through 10 mesh sieves, so
After be put into atmosphere furnace, will be passed through after atmosphere stove evacuation nitrogen proceed by low temperature baking；Atmosphere furnace is set with 10 DEG C/min
Rate is by room temperature to 450 DEG C, and after being warming up to maximum temperature, high temperature keeps obtaining carbonized material in 120 minutes；Stop heating, from
Room temperature is so cooled to, obtains conditioner matrix；Then it is CCTCC No.M to add in preserving number according to every 1000 grams of conditioner matrix
2014001 trichoderma asperellum CGM-10（Trichoderma asperellum CGM-10）0.1 gram -1 gram of spore powder obtains
Biological reinforced conditioner matrix；According to every 1000 grams biological reinforced conditioner matrix add in 10 grams of iron powders of 10-100 microns of grain size-
100 grams, 1-3 centimetres of diameter, the biological dewatered organic conditioning of municipal excess sludge of 1-4 centimetres of length are prepared into after mixing
Agent.
2. a kind of biological dewatered organic conditioner of municipal administration excess sludge, it is characterized in that it includes following component：Organic waste is fine
The plain enzyme fermentation of dimension gives up bacteria residue and furfural dregs are according to weight ratio（0.5-1）︰ 1 is mixed, then in every 1000 grams of mixtures
Add in the trichoderma asperellum CGM-10 that preserving number is CCTCC No.M 2014001（Trichoderma asperellum CGM-10）
Municipal excess sludge biology is obtained after 0.1 gram -1 gram of spore powder, 10 grams of -100 grams of compoundings of iron powder that grain size is 10-100 microns
The organic conditioner of desiccation.
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| CN107056409B (en) * | 2017-01-09 | 2020-10-09 | 山东省科学院能源研究所 | Functional biochar-based nutrient medium for preventing and treating root rot and preparation method thereof |
| CN109022286A (en) * | 2017-06-12 | 2018-12-18 | 天津科技大学 | A kind of preparation method of the fermenting agent for reducing grain fruits and vegetables content of beary metal |
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| CN112430137B (en) * | 2020-11-25 | 2023-01-06 | 山东省科学院能源研究所 | Biochar-based aerobic compost conditioner containing wood vinegar and trichoderma spores |
| CN113322284B (en) * | 2021-04-29 | 2022-06-21 | 浙江科技学院 | Method for reducing bioavailability of heavy metal in straw and application thereof |
| CN113354252B (en) * | 2021-07-07 | 2022-02-22 | 浙江桃花源环保科技有限公司 | Sludge drying conditioner and preparation method thereof |
| CN113636896A (en) * | 2021-08-20 | 2021-11-12 | 华电西藏能源有限公司大古水电分公司 | Method for promoting sandy aggregate dewatered sludge to be in soil by using wood processing excess material and biochar thereof |
| CN114014576A (en) * | 2021-11-30 | 2022-02-08 | 东华大学 | Method for preparing cement filler by quickly drying municipal sludge |
| CN115215703A (en) * | 2022-07-28 | 2022-10-21 | 无锡国联环保科技股份有限公司 | Soil conditioner based on dried sludge and preparation method thereof |
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| KR20010017287A (en) * | 1999-08-10 | 2001-03-05 | 이구택 | A method of dewatering organic sludge with centrifuge |
| CN101580410B (en) * | 2008-08-29 | 2012-08-29 | 广东大众农业科技股份有限公司 | Method for producing alkaline organic fertilizer by papermaking sludge |
| CN101746941B (en) * | 2008-12-10 | 2012-11-14 | 清华大学 | Biological drying method for treating dewatered sludge of urban sewage plant |
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| CN103910476B (en) * | 2014-03-25 | 2015-11-04 | 山东省科学院能源研究所 | Based on the municipal dewatered sludge of NaOH pretreatment without the biological dewatered method of auxiliary material |
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