CN109368811A - Microbial compound enzyme filler and preparation method thereof and application method - Google Patents
Microbial compound enzyme filler and preparation method thereof and application method Download PDFInfo
- Publication number
- CN109368811A CN109368811A CN201811377625.4A CN201811377625A CN109368811A CN 109368811 A CN109368811 A CN 109368811A CN 201811377625 A CN201811377625 A CN 201811377625A CN 109368811 A CN109368811 A CN 109368811A
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- Prior art keywords
- filler
- enzyme
- water
- biological enzyme
- biological
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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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- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The present invention relates to the application methods that a kind of microbial compound enzyme filler, the preparation method of the filler and the filler are used for black and odorous water emergency processing.The filler includes filler body and the biological enzyme layer that filler body surface is arranged in, and the biology enzyme layer uses the microbial compound enzyme preparation of biological enzyme containing there are many and embedded by binder.The preparation method is that the filler body is placed in the closed reactor equipped with inlet and outlet, the biological enzyme formulation of the graininess embedded through binder or powdery is blowed to the filler in reactor with air-flow and then is conserved under certain temperature and humidity.The application method is to be placed in water body to be processed to carry out water body purification in the container for being hung directly from the filler in water body to be processed or being placed in based on netting.After biological enzyme filler investment water treatment system of the invention, effective catharsis can be played soon, the water treatment field and closes such as emergency processing suitable for black and odorous water.
Description
Technical field
The present invention relates to the systems of a kind of microbial compound enzyme filler suitable for black and odorous water emergency processing and its this filler
Preparation Method further relates to application method of this filler in water process especially black and odorous water emergency processing.
Background technique
With being continuously increased for economic development and population, industrial wastewater, sanitary sewage discharge amount be continuously increased, great Liang Wei
Sewage direct emission through being effectively treated enters river, and many rivers, especially medium or smallsized river is caused to be chronically at black smelly state.
Under this severe environment situation, black and odorous water problems demand is solved." water prevention and cure of pollution action meter issued by the State Council in 2015
Draw " it proposes: ground level and the control of the above completed region of the city black and odorous water are within 10%, to the year two thousand thirty, national seven big major river valley water
Good ratio of fine quality totally reaches 75% or more, and completed region of the city black and odorous water is totally eliminated.Plan to propose simultaneously, to 2017
The end of the year municipality directly under the Central Government, provincial capital, cities specifically designated in the state plan's built-up areas sewage realize full collection, full processing substantially.These targets embody
The resolution of state treatment black and odorous water.However be at present effectively to be handled there are also a large amount of black and odorous water, this is required
Relevant technology and equipment eliminate in a short time municipality directly under the Central Government, provincial capital, cities specifically designated in the state plan built-up areas black and odorous water.
Since the pollution level of black and odorous water is high, biological contact oxidation process is mostly used at present, this method is that water body is allowed to soak
No filler, and filler is flowed through with certain flow velocity, is made in water by the flocculation adsorption of the biomembrane formed on filler, oxidation
The biochemical pollutant matrix utilized obtain degradation removal, when the pollutant and biofilm contact in raw water, especially exist
Under the participation of biological enzyme, by the metabolic activity and biological adsorption of microorganism, flocculation, oxidation, nitrification, synthesizes and ingest
Comprehensive function makes ammonia nitrogen, organic matter, iron and manganese etc. in the water of source gradually be oxidized and convert, achievees the purpose that elimination.But it answers
Micro-polluted raw is handled with biological contact oxidation process, it usually needs is carried out biofilm debugging, is made microorganism attached during biofilm debugging
On biologic packing material, generally require to succeed by 2-4 months time and carry out effective biofilm on biologic packing material, handling
Effective catharsis cannot be played after system Construction in longer period of time, can not be adapted at the emergency of water pollution
Reason.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of microbial compound enzymes suitable for black and odorous water emergency processing
Filler, additionally providing the preparation method of this microbial compound enzyme filler will soon after this filler puts into water treatment system
Effective catharsis is enough played, the water treatment field and closes such as emergency processing suitable for black and odorous water.
The technical scheme is that a kind of microbial compound enzyme filler suitable for black and odorous water emergency processing, including fill out
Expect ontology, the surface of the filler body is equipped with biological enzyme layer.
A kind of microbial compound enzyme filler suitable for black and odorous water emergency processing, including filler body, the filler body
Surface be equipped with biological enzyme layer, thus, it is possible to realize the purification of water pollutant by the high-performance bio catalytic action of biological enzyme.
The surface that the filler body is equipped with biological enzyme layer includes its outer surface, perhaps including its hole surface or packet
Its outer surface and hole surface are included, can be determined according to the construction of filler body used and requirement etc., preferably be connect with water body
Biological enzyme layer is designed on all surfaces of touching.
Preferably, the filler body is made or is processed as porous structure using foamed material, for example, the porous material
Material can use open-cell foam materials or spongy material, and the porous structure can be filled out for three-dimension web-like media or cylinder mould ball
Material.
The filler body can using under the prior art for the various fillers of bio-contact oxidation and other various permit
Perhaps the porous material that water flow passes through.
The biology enzyme layer may include a variety of biological enzyme formulations and organic binder.
The raw material of the biological enzyme formulation can be graininess or non-particulate, preferably solid.
The binder is preferably in tridimensional network.
The binder is preferably polyacrylamide or sodium alginate, to adapt to bonding requirement and avoid or substantially avoid
Enzyme is interfered to react with the contact of pollutant/reactant and participation.
The biological enzyme formulation may include oxidoreducing enzyme (general designation of oxidizing ferment and reductase), transferase, hydrolase,
Any type or multiclass in lyase, isomerase and synzyme, can be according to the prior art, for specific water quality and purification
It is required that selection any a variety of specific biological enzyme formulations therein, to be adapted at the purification to different water bodys and pollution situation
Reason.
Biological enzyme formulation in the biology enzyme layer preferably uses the microbial compound enzyme preparation of the biological enzyme containing there are many simultaneously
It is embedded by binder, to facilitate preparation and realize and improve enzyme immobilizatio, is improved service life.
The filler body preferably uses polyester material, can directly cut using similar to spongiform porous polyester material
It cuts in required filler shape.
It is disclosed by the invention any one be suitable for black and odorous water emergency processing microbial compound enzyme filler preparation method,
The filler body is placed in the closed reactor equipped with inlet and outlet by it, the graininess that will be embedded through binder with air-flow
Or powdery biological enzyme formulation be sent into reactor, make biological enzyme formulation deposit and/or be attached to filler body outer surface and/or
Then hole surface is conserved, the water content/humidity controlled in air themperature and air in maintenance processes has binder
Efficiency is bonded, and not excessively high in response to temperature and biological enzyme is caused to inactivate, by the binder by biological enzyme formulation and biology
Enzyme preparation is securely bonded together with filler body, and firm biological enzyme layer is thus formed in filler body.
It is preferred that blowing to the filler in reactor from the multiple directions around reactor by biological enzyme formulation, thus make biological enzyme
Preparation flows to and touches the surface of filler body from each angle, avoids dead angle occur on the surface of filler body as far as possible.
It can control the surface that wind speed enables biological enzyme formulation to adsorb and/or be deposited on the filler.
The surface of the filler includes the outer surface of filler and/or the hole surface of filler.
The biology enzyme layer preferably comprises oxidoreducing enzyme, transferase, hydrolase, lyase and isomerase.
The oxidoreducing enzyme, transferase, hydrolase, lyase and isomerase mass ratio be preferably the left side 2:1:3:1:1
The right side, it is possible thereby to be adapted to the improvement of most of black and odorous waters in reality.
Above-mentioned filler can be used for the purified treatment or pollution control of water body, may be used as at any bio-contact oxidation
The filler of reason system.Due to the efficient catalytic ability of this filler, the filler can also be hung directly from wait locate by when use
Being placed in the container based on netting in the water body of reason or by the filler, (net is constituted all or part of chamber wall, setting
Position, which should have, passes through container conducive to water flow, for example, the string bag) in, the container is placed in water body to be processed, to carry out water
Body purification.Various microbial compound enzyme fillers of the present invention may be incorporated for answering for water body purification, especially black and odorous water
Anxious processing,
The beneficial effects of the present invention are: due to being provided with biological enzyme layer in the outer surface of filler and/or hole surface, it can be according to existing
There is technology to determine the microbial compound enzyme for being adapted to staying water pollutant and pollutional condition, prepares and be adapted to the water body
Filler after this filler is put into staying water, using the efficiently and directionally catalytic action of biological enzyme, significantly accelerates purification institute
The chemistry or biochemical reaction needed quickly eliminates related organic pollutant and other pollutants in water body, without waiting
The microorganism colonization time of several months；It is micro- needed for capable of stimulating due to good existence and metabolism environment that microbial compound enzyme is formed
The breeding and metabolism of biology inhibit harmful microbe growth, and building forms good enzyme-microbe symbiotic system, in water
More stable group is formed, to realize long-acting and influence of the enzyme in water remediation；Since nitrogen polyurethane can be used
Microbial membrane carrier of the equal porous aggregates as microbial compound enzyme and after coming into operation, microbial compound enzyme can be steadily
Be maintained at filler it is porous in, especially by degradation degree it is lower in addition not by current scour act on region, can make to fill out
Material possesses the active microorganism film after microbial compound enzyme and use for a long time, long-term to keep.Immobilization biological enzyme enzyme it is a variety of
Carrier format: porous biological carrier is generallyd use.In the presence of biology enzyme.
Microbial compound enzyme filler of the invention is used in black and odorous water improvement, can rapidly put into live use,
Simultaneously in microorganism-biological enzyme-organic matter-moisture-temperature hierarchy, organic matter can be degraded rapidly, can quickly eliminate
Black and odorous water is adapted to emergency processing and conventional treatment of water pollution etc..
Detailed description of the invention
Fig. 1 is the local structure schematic diagram of filler surface of the present invention；
Fig. 2 is a kind of usage mode schematic diagram of filler of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Referring to Fig. 1, filler of the present invention can put into project scene in a short time, according to the water quality at project scene
And microbial compound enzyme is immobilized in porous, expanded by pollution condition, the biological enzyme layer 12 on factory's preparation filler body surface
In filler body 11 made of polyurethane etc., to realize long-acting of the biological enzyme in water remediation.
Filler body for immobilization biological enzyme can take various forms, for example, can usually use multiporous biological
Carrier.After putting into water body, the effect of biological enzyme can stimulate certain micro-organisms to breed and grow again, pass through the structure of enzyme and microorganism
Build to form enzyme-microbe symbiotic system, more stable group can be formed in water, quickly eliminate water body in organic matter with
Nitrogen.This filler with microbial compound enzyme can rapidly put into live use, while organic in microorganism-biological enzyme-
In object-moisture-temperature hierarchy, the pollutants such as organic matter can be adsorbed and degrade rapidly, and then fast implement black and odorous water
Purification.
Specific biological enzyme is chosen for pollutant in water body, and biological enzyme has high catalytic performance and highly selective, almost
All biological cell active process require the participation of enzyme, to improve efficiency.Similar to other abiotic catalyst, enzyme passes through
The activation energy of chemical reaction is reduced to accelerate reaction rate, the rate for the reaction that most of enzyme can be catalyzed improves up to a hundred
Wan Bei
Following various biological enzyme can be considered:
1) redox enzymes (oxidoreductase): promote substrate to carry out the enzyme of redox reaction, be a kind of catalysis
The enzyme of redox reaction can be divided into two class of oxidizing ferment and reductase；
2) certain groups (such as acetyl group, methyl, amino, phosphoric acid transferase (transferases): are carried out between catalysis substrate
Base etc.) transfer or exchange enzyme.For example, transmethylase, aminopherase, transacetylase, transsulfurase, kinases and more
Poly- enzyme etc.；
3) hydrolase (hydrolases): the enzyme of catalysis substrate generation hydrolysis.For example, amylase, protease, fat
Enzyme, phosphatase, glycosidase etc.；
4) it lyases (lyases): is catalyzed and removes a group from substrate (non-hydrolytic) and leave the reaction of double bond or its is converse
The enzyme answered.For example, dehydratase, decarboxylase, carbonic anhydrase, aldolase, citrate synthase etc..Many lyase catalysis are converse
It answers, make to form new chemical bond between two substrates and eliminates the double bond of a substrate；
5) it isomerase (isomerases): is catalyzed between various isomers, geometric isomer or optical isomer mutually
The enzyme of conversion.For example, isomerase, epimerase, racemase etc.；
6) synthetic enzyme (ligase): two molecule substrates of catalysis synthesize a molecular compound, while coupling has the phosphate bond of ATP
The enzyme of energy is released in fracture.For example, glutamine synthelase, DNA ligase, amino acid: tRNA ligase and dependence biotin
Carboxylase etc.；
Since a kind of enzyme is typically only capable to be catalyzed a kind of or a kind of chemical reaction, and the intracorporal metabolic process of biology is often a series of
Complicated variation, therefore a variety of enzymatics are needed, microbial compound enzyme is the enzyme of three kinds or more of enzyme composition.It can according to water quality difference
The microbial compound enzyme for assembling heterogeneity has following effect for the complex enzyme formula of water restoration and treatment: (1) can stimulate
The reaction for accelerating microorganism, improves the activity and fertility of microorganism；(2) macromolecular compound in sewage is promoted to resolve into
Small molecule compound releases in conjunction with oxygen, enhances water reoxygenation function.
Filler can be using porous materials such as polyurethane, and this kind of filler has special porous structure, and biological enzyme is more
For powderous preparations, in order to combine biological enzyme effectively with filler, added in biological enzyme suitably small amount organic binder into
The embedding of row biological enzyme formulation.It can be using the binders such as powdered polypropylene amide or sodium alginate, when these binder room temperature
It does not bond, high temperature can then bond when meeting water with polyurethane, not influence the performance of enzyme after bonding.Located in advance first in factory
Reason, biological enzyme and binder pulvis can enter in porous filler space under wind friction velocity appropriate, this stage generally needs
Want 8 hours.Again by under the maintenance of suitable temperature and steam, biological enzyme can tightly in the case where organic matter and moisture
It is adjacent to filler surface, this stage needs 16 hours.
The biological enzyme filler that has been prefabricated in the factory is transported to project scene, by direct hang or can be packed into mesh bag
In into the water, in water under the action of microorganism, organic matter and moisture, enzyme reacts rapidly, in microorganism-biological enzyme-
In organic matter-moisture-temperature hierarchy, organic matter can be degraded rapidly.
The specific operation process for preparing this filler is as follows:
1) it sets filler body shape and processes: according to the condition of use site, polyurethane etc. being fabricated to strip either
The filler body of square, the length of general strip are 1 to 1.5 meters, and section is generally 15 centimetres * 15 centimetres of shape, side
It is block-like to be typically chosen as square, the cube that specification is 15 centimetres * 15 centimetres * 15 centimetres.
2) selected microorganism complex enzyme formulation.It is analyzed by live related data, chooses suitable biological enzyme kind,
Biological enzyme is set to be capable of forming optimum proportioning, such as lipoxygenase (oxidoreducing enzyme): transaminase (transfer by proportion appropriate
Enzyme): cellulase (hydrolase): decarboxylase (lyase): the ratio between phosphoglucose sugar isomerase (isomerase) is 2:1:
3:1:1 or so, biological enzyme, which is capable of forming best collocation, can satisfy the elimination of pollutant in the black and odorous water in most area.
According to experiment, when cellulase: when lipase=1:1, the removal rate of organic solution for being 100mg/L to initial concentration is 60%
Left and right.Therefore, for different black and odorous waters, need to adjust different enzyme proportions, accelerate macromolecular difficult to degrade in hydrolase
Under the action of degradation speed., can be with special configuration, when commercially available after the composition of complex enzyme formulation determines, it can also be direct
Purchase.
3) biological enzyme layer is formed in filler body.Filler body is put into closed reactor, reactor is equipped with
Inlet and outlet channel, biological enzyme mix preparation enter in reactor under wind condition appropriate, porous due to filler body
Structure enables biological enzyme formulation to enter the gap in filler body under conditions of wind.Preferably pass through closed reactor difference
The wind direction in direction enables filler body adequately to contact microbial compound enzyme preparation, prepared by porous, expanded polyester material
Filler body, general one cube of filler adds 200-300g biological enzyme mix preparation.
4) biological enzyme layer is reinforced.The maintenance workshop that filler body after the biological enzyme layer of formation is sent into 30-40 degree is supported
Shield, this workshop is according to the difference of addition microbial compound enzyme preparation, and water content in setting setting or variation air usually can be with
It is passed through steam and forms required water content, the binder to mix with biological enzyme mix preparation gradually occurs under the action of moisture
Reaction, by the effect of binder, microbial compound enzyme preparation smoothly secure bond in the gap of porous structure.
Referring to fig. 2, this filler can be used for black and odorous water pollution control.The filler 10 of factory's preparation number is transported to item
Mesh scene, can directly hang (for example, for filler of strip) in water body 30 for filler by filler support 20, can also
Filler to be placed in mesh bag to the filler of square (such as) into the water, by the effect of water flow, microorganism in water,
The substances such as organic matter are assembled in the porous filler such as polyurethane, in microorganism-biological enzyme-organic matter-moisture-temperature volume
The pollutants such as organic matter are degraded by microorganism in system, are finally reached and are eliminated black smelly purpose.
The present invention has following features:
1) it is formed for different black and odorous water process objects using different enzymes, forms the biological enzyme for being attached to filler body
Layer, and take the size of different fillers for different field conditions and launch form, construct good efficient " microorganism-
Biological enzyme-organic matter " system, organic matter can be degraded rapidly under enzyme catalysis, the oxygen energy discharged in degradation process
Enough increase the dissolved oxygen concentration in water body, is conducive to the removal of ammonia nitrogen, and then achieve the purpose that remove rapidly black smelly.
2) black and odorous water water quality indicator is first analyzed before filler preparation, targetedly carries out the proportion of different biological enzyme, makes
Microbial compound enzyme preparation plays maximum effect under specific condition of water quality, while creative production makes enzyme secured
It is bonded in the gap of the porous aggregates such as polyurethane, enzyme preparation is not allowed to be easy to run off, and maximum plays the effect of biological enzyme formulation.
3) for water remediation or when administering, have following effect: (1) reaction for accelerating microorganism can be stimulated, improve micro-
The activity and fertility of biology；(2) promote the macromolecular compound in sewage to resolve into small molecule compound, release combination
Oxygen enhances water reoxygenation function.Water pollutant concentration can be reduced in the short time, be rapidly achieved and eliminate black smelly purpose.
4) filler is with strong points, being capable of maximum the effect of playing microbial compound enzyme.
5) Production Time of filler is short, only needs one day time that can complete the production of filler in factory's pre-loading time,
It can play a role at once in investment water.
6) composite efficacy that can give full play to various microbial compound enzymes, reduces the dosage of microbial compound enzyme, cost
It is low.
It is disclosed by the invention it is each preferably with optional technological means, unless otherwise indicated and one preferably or can selecting technology hand
Section is that further limiting for another technological means is outer, can form several different technical solutions in any combination.
Claims (10)
1. a kind of microbial compound enzyme filler suitable for black and odorous water emergency processing, including filler body, it is characterised in that described
The surface of filler body is equipped with biological enzyme layer.
2. filler as described in claim 1, it is characterised in that the surface that the filler body is equipped with biological enzyme layer includes filling out
Expect outer surface and/or the hole surface of ontology.
3. filler as claimed in claim 2, it is characterised in that the filler body is made or is processed as using foamed material
Porous structure.
4. filler a method according to any one of claims 1-3, it is characterised in that the biology enzyme layer includes micro-organism enzyme preparation and has
Machine binder.
5. filler as claimed in claim 4, it is characterised in that the biological enzyme in the biology enzyme layer is used containing there are many biologies
The microbial compound enzyme preparation of enzyme is simultaneously embedded by binder.
6. filler as claimed in claim 5, it is characterised in that the binder is polyacrylamide or sodium alginate, the life
Object enzyme includes any type or multiclass in oxidoreducing enzyme, transferase, hydrolase, lyase, isomerase and synzyme.
7. filler as claimed in claim 6, it is characterised in that the filler body uses polyester material.
8. a kind of preparation method of the microbial compound enzyme filler of any black and odorous water emergency processing of claims 1-7,
It is characterized in that being placed in the filler body in the closed reactor equipped with inlet and outlet, will be embedded through binder with air-flow
Graininess or the biological enzyme formulation of powdery be sent into reactor, so that biological enzyme formulation is deposited and/or be attached to the outer of filler body
Surface and/or hole surface, are then conserved, and the water content/humidity controlled in air themperature and air in maintenance processes makes
Binder has bonding efficiency, and not excessively high in response to temperature and biological enzyme is caused to inactivate, by the binder by biological enzyme system
Agent and biological enzyme formulation are securely bonded together with filler body.
9. method according to claim 8, it is characterised in that blow to biological enzyme formulation from the multiple directions around reactor
Filler in reactor, controlled wind speed enable biological enzyme formulation to adsorb and/or be deposited on the surface of the filler.
10. the application method of microbial compound enzyme filler as claimed in claim 1 or such as any institute of claim 8-9
State the application method of the microbial compound enzyme filler of method preparation, it is characterised in that be used for water body purification, especially black and odorous water
Emergency processing, the filler is hung directly from water body to be processed or the filler is placed in the appearance based on netting
In device, the container is placed in water body to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377625.4A CN109368811A (en) | 2018-11-19 | 2018-11-19 | Microbial compound enzyme filler and preparation method thereof and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377625.4A CN109368811A (en) | 2018-11-19 | 2018-11-19 | Microbial compound enzyme filler and preparation method thereof and application method |
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| CN109368811A true CN109368811A (en) | 2019-02-22 |
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| CN201811377625.4A Pending CN109368811A (en) | 2018-11-19 | 2018-11-19 | Microbial compound enzyme filler and preparation method thereof and application method |
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| CN110054297A (en) * | 2019-05-21 | 2019-07-26 | 天津市环境保护技术开发中心 | A kind of spherical shape MBBR filling-material structure |
| CN112919646A (en) * | 2021-01-26 | 2021-06-08 | 北京美大环洲工程技术有限责任公司 | Embedding filler composition and embedded microbial flora active filler prepared from same |
| CN113213643A (en) * | 2021-04-14 | 2021-08-06 | 龚天付 | Rice huller basketry and preparation method and application thereof |
| CN114409198A (en) * | 2022-01-29 | 2022-04-29 | 东南大学 | Food wastewater treatment method based on modified basalt fiber filler and biological treatment agent |
| CN114958812A (en) * | 2022-06-27 | 2022-08-30 | 上海交通大学 | Method for promoting sludge feed conversion by using complex enzyme |
| CN116870842A (en) * | 2023-09-08 | 2023-10-13 | 中创宏远（北京）环保科技有限公司 | Preparation process of novel kitchen equipment filler |
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| CN112919646A (en) * | 2021-01-26 | 2021-06-08 | 北京美大环洲工程技术有限责任公司 | Embedding filler composition and embedded microbial flora active filler prepared from same |
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| CN114409198A (en) * | 2022-01-29 | 2022-04-29 | 东南大学 | Food wastewater treatment method based on modified basalt fiber filler and biological treatment agent |
| CN114958812A (en) * | 2022-06-27 | 2022-08-30 | 上海交通大学 | Method for promoting sludge feed conversion by using complex enzyme |
| CN116870842A (en) * | 2023-09-08 | 2023-10-13 | 中创宏远（北京）环保科技有限公司 | Preparation process of novel kitchen equipment filler |
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