CN207227435U - From reflux cycle nitrification installation and apply its waste dish processing system - Google Patents
From reflux cycle nitrification installation and apply its waste dish processing system Download PDFInfo
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- CN207227435U CN207227435U CN201721069233.2U CN201721069233U CN207227435U CN 207227435 U CN207227435 U CN 207227435U CN 201721069233 U CN201721069233 U CN 201721069233U CN 207227435 U CN207227435 U CN 207227435U
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Abstract
The utility model discloses a kind of from reflux cycle nitrification installation and using its waste dish processing system, it is related to agriculture pollutants cycling and reutilization technical field, ammonia can not accumulates to improve the prior art and easily trigger the technical problem of anaerobic fermentation equipment fluctuation of service in Effective Regulation waste dish fermentation process.It is provided by the utility model to include first reactor and second reactor from reflux cycle nitrification installation；The discharge port of first reactor is connected with the feed inlet of second reactor, and the discharge port of second reactor is connected with the feed inlet of first reactor；Include acid-producing bacteria in first reactor, first reactor is used to waste dish raw material carrying out fermentation process；Include methanogen in second reactor, second reactor is used to carry out the fermentation clout of first reactor discharge fermentation process, and the fermentation clout of second reactor discharge is back in first reactor.The utility model is mainly used in from the structure and manufacture of its waste dish processing system of reflux cycle nitrification installation and application.
Description
Technical field
Agriculture pollutants cycling and reutilization technical field is the utility model is related to, is followed in particular to a kind of from reflux
Ring nitrification installation and apply its waste dish processing system.
Background technology
Waste dish refers to the residual leaf that fresh vegetables must be removed from when tapping, in transportational process or when edible.With life
The raising of demand living, various regions vegetable cultivation area expand year by year, and the thing followed is to produce a large amount of waste dish, and such case is at some
The performance of vegetables main producing region is especially prominent, it has also become region primary pollution source.Vegetables industry brings good economic benefits to vegetable grower
Meanwhile the waste dish produced therewith also brings problem to agricultural and rural environmental protection, therefore how research handles or utilizes tail
Dish, alleviates waste dish pollution problem and is of great significance.
Nitrogenous compound is rich in waste dish, therefore integrated treatment and utilization can be carried out to waste dish.But in fermentation clout
Reflux and raw material metabolic process in, the ammonia in anaerobic reactor can be built up, when its concentration exceed certain value after hold
Easily trigger oxygen inhibition phenomenon, inhibitory action finally is produced to microorganism, causes the anaerobic fermentation system interruption of service, in some instances it may even be possible to lead
Cause anaerobic system operation failure.At present usually with chemical precipitation method, air stripping method, the aerobic nitre of tradition in the treatment process of mainstream
Change method and Anammox regulate and control the concentration of ammonia, but these methods all asking there are the disposal of chemicals later stage and secondary pollution
Topic.Therefore, still it is badly in need of the more economical efficient regulation device for suppressing ammonia accumulation of exploitation at present.
In view of this, it is special to propose the utility model.
Utility model content
First purpose of the utility model be to provide it is a kind of from reflux cycle nitrification installation, with improve the prior art without
Ammonia accumulates and easily triggers the technical problem of anaerobic fermentation equipment fluctuation of service in method Effective Regulation waste dish fermentation process.
Second purpose of the utility model is to provide a kind of waste dish processing system, using having this practicality newly in the system
Type is larger to improve equipment fluctuation of service during prior art processing waste dish, operating cost from reflux cycle nitrification installation
And the technical problem that output is less.
In order to realize the above-mentioned purpose of the utility model, spy uses following technical scheme：
The utility model provides a kind of from reflux cycle nitrification installation, including first reactor and second reactor；It is described
The discharge port of first reactor is connected with the feed inlet of the second reactor, the discharge port of the second reactor and described the
The feed inlet connection of one reactor；Include acid-producing bacteria in the first reactor, the first reactor is used for waste dish raw material
Carry out fermentation process；Include methanogen in the second reactor, the second reactor is used for the first reactor
The fermentation clout of discharge carries out fermentation process, and the fermentation clout of second reactor discharge is back to the first reactor
It is interior.
Specifically, the first reactor and the second reactor from top to bottom include successively gas distribution cloth water-bound,
Biological bed, barrier layer and filter layer；The gas distribution cloth water-bound is used for into the first reactor or second reaction
Water distribution uniformity gas distribution in device；The biology bed is used for the apposition growth of bacterium；The barrier layer is used to prevent bacterium from falling into institute
State filter layer；The filter layer obtains ferment filtrate and fermentation filter residue after being used for filter material.
Further, the biological bed includes non-woven fabrics construct, and the non-woven fabrics construct is used to adhere to bacterium
After carry out growth and breeding.
Further, the barrier layer includes nylon mesh layer.
Further, the filter layer includes float stone filled layer.
Further, it is additionally provided with pressure gauge in the first reactor.
Further, it is between the discharge port of the second reactor and the feed inlet of the first reactor and described
Drawing liquid pump is both provided between the discharge port of second reactor and the feed inlet of the second reactor.
Further, the first reactor is provided with one or more；The second reactor be provided with one or
It is multiple.
Compared with prior art, it is provided by the utility model that there is following advantage from reflux cycle nitrification installation：
The utility model provides a kind of from reflux cycle nitrification installation, including first reactor and second reactor；First
The discharge port of reactor is connected with the feed inlet of second reactor, the discharge port of second reactor and the feed inlet of first reactor
Connection；Include acid-producing bacteria in first reactor, first reactor is used to waste dish raw material carrying out fermentation process；In second reactor
Including methanogen, second reactor is used to carry out the fermentation clout of first reactor discharge fermentation process, and the second reaction
The fermentation clout of device discharge is back in first reactor.It is from this analysis, provided by the utility model from reflux cycle nitre
Makeup is put, and due to including first reactor and second reactor, acid-producing bacteria and methanogen are respectively placed in mutually independent anti-
Answer in device, therefore can ensure two class bacterium each required optimum condition, give full play to the maximum activity of flora respectively, improve the
The treatment effeciency of one reactor and second reactor；Further, since first reactor as production acid mutually and using waste dish as raw material into
Row fermentation process, second reactor carry out fermentation process as methanogenic phase and using the fermentation clout of the sour phase of production as raw material, at the same time
The fermentation clout of methanogenic phase is back to the sour phase of production, therefore can form two benches anaerobic fermentation system, is set by the separation of two-phase
Put, can significantly improve in the prior art because of the reactor fluctuation of service caused by the accumulation of ammonia nitrogen the problem of, to ensure to produce
Grown under sour bacterium and each comfortable optimal environmental condition of methanogen, so as to avoid different population is interbiotic from interfering with each other and be metabolized
Product conversion it is unbalanced and caused by inhibitory action, simultaneously because the change of the opposite influent quality of production acid and volumetric loading have it is stronger
Adaptability and cushioning effect, therefore can significantly cut down service condition and change influence to methanogen, thus improve from
The treatment effeciency and operation stability of reflux cycle nitrification installation.The utility model make use of waste dish from reflux cycle nitrification installation
The suppression of the ammonia nitrogen of acid-producing bacteria and methanogen promotees characteristic in processing procedure, by jointly controlling, reflux cycle and using fermenting clout
The method for replacing fermentate in two reactors mitigates ammonia inhibition so that ammonia nitrogen concentration is maintained at suitable model in fermentation system
Enclose, highest can improve 60% compared with cutting down ammonia nitrogen cumulative concentration when non-circular treatment, and vegetables waste dish is made without conventional
The preprocessing means such as heat treatment, need not also add external source chemical reagent regulation and control pH value.The utility model effectively realizes waste dish hair
The stability of ferment process, the selection for zymotechnique during waste dish fermentation recycling provide technical basis, are at the same time
Exploitation is adapted to nitrogen characteristic in vegetables waste dish and the method that cost-effectively regulation and control ammonia suppresses provides reference, realizes economic benefit
With the double receipts of environmental benefit.
The utility model also provides a kind of waste dish processing system, including above-mentioned from reflux cycle nitrification installation.
Compared with prior art, waste dish processing system provided by the utility model takes full advantage of above-mentioned from reflux cycle nitre
Makeup is put, and has more preferable impact resistance and stability, and simple in structure, easy Collaborative Control, reduces operational management difficulty
And cost, it is suitable for handling the waste dish of field and the generation of middle small city；Waste dish hair has been effectively ensured in the utility model
The stability of ferment process, the selection for zymotechnique during waste dish fermentation recycling provide technical basis, are at the same time
Exploitation is adapted to nitrogen characteristic in vegetables waste dish and the method that cost-effectively regulation and control ammonia suppresses provides reference, realizes economic benefit
With the double receipts of environmental benefit；In addition, the extensive processing mode of this vegetables waste dish provided by the utility model, efficiently solves tail
The problem of dish processing utilization rate deficiency, production capacity is relatively low, approach is provided for waste dish recycling.
Further, the waste dish processing system further includes waste dish pretreatment box and remaining waste dish storage box；The waste dish
Pretreatment box includes blender；The discharge port of the waste dish pretreatment box connects with the feed inlet from reflux cycle nitrification installation
Logical, the discharge gate from reflux cycle nitrification installation is connected with the feed inlet of the remaining waste dish storage box.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be some embodiments of the utility model, for those of ordinary skill in the art, do not paying creative labor
On the premise of dynamic, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of easy structure schematic diagram from reflux cycle nitrification installation that the utility model embodiment provides；
Fig. 2 is that the easy structure from second reactor in reflux cycle nitrification installation that the utility model embodiment provides is shown
It is intended to；
Fig. 3 is another easy structure schematic diagram from reflux cycle nitrification installation that the utility model embodiment provides；
Fig. 4 is the easy structure schematic diagram for the waste dish processing system that the utility model embodiment provides；
Fig. 5 is from ammonia nitrogen concentration in reflux cycle nitrification installation in the waste dish processing system that the utility model embodiment provides
Versus time curve.
Icon：001- first reactors；002- second reactors；003- gas distribution cloth water-bounds；004- biology beds；005-
Barrier layer；006- filter layers；007- pressure gauges；008- drawing liquid pumps；011- Hydrogen collection tanks；021- methane collection tanks；100- is certainly
Reflux cycle nitrification installation；200- waste dish pretreatment boxes；201- blenders；300- residue waste dish storage boxes.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " in ", " on ", " under ", " vertical ", " interior ", " outer "
Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this practicality newly
Type and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second " are only used for describing
Purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to illustrate in the description of the utility model, unless otherwise clearly defined and limited, term " connection "
It should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, it can understand above-mentioned term in the utility model with concrete condition
Concrete meaning.
Fig. 1 is a kind of easy structure schematic diagram from reflux cycle nitrification installation that the utility model embodiment provides.
One side according to the present utility model, the utility model embodiment provide it is a kind of from reflux cycle nitrification installation,
Such as Fig. 1, (solid arrow represents the direction that the Matter Transfer containing waste dish slurry or waste dish slag flows in figure, and dotted arrow represents fermentation
The direction that filtrate is flowed back certainly) shown in, including first reactor 001 and second reactor 002；The discharge port of first reactor 001
Connected with the feed inlet of second reactor 002, the discharge port of second reactor 002 is connected with the feed inlet of first reactor 001；
Include acid-producing bacteria in first reactor 001, first reactor 001 is used to waste dish raw material carrying out fermentation process；Second reactor
Including methanogen in 002, second reactor 002 is used to carry out fermentation process to the fermentation clout that first reactor 001 is discharged,
And the fermentation clout that second reactor 002 is discharged is back in first reactor 001.
Compared with prior art, what the utility model embodiment provided has following advantage from reflux cycle nitrification installation：
Such as Fig. 1, (solid arrow represents the direction that the Matter Transfer containing waste dish slurry or waste dish slag flows, dotted arrow in figure
Represent ferment filtrate from the direction flowed back) shown in, the utility model embodiment provides one kind from reflux cycle nitrification installation, including
First reactor 001 and second reactor 002；The discharge port of first reactor 001 connects with the feed inlet of second reactor 002
Logical, the discharge port of second reactor 002 is connected with the feed inlet of first reactor 001；Include production acid in first reactor 001
Bacterium, first reactor 001 are used to waste dish raw material carrying out fermentation process；Include methanogen in second reactor 002, second is anti-
Device 002 is answered to be used to carry out fermentation process, and the hair that second reactor 002 is discharged to the fermentation clout that first reactor 001 is discharged
Ferment clout is back in first reactor 001.From this analysis, the utility model embodiment offer is nitrified from reflux cycle
In device, due to being respectively placed in independently of each other including first reactor 001 and second reactor 002, acid-producing bacteria and methanogen
Reactor in, therefore can ensure two class bacterium each required optimum condition, give full play to the maximum activity of flora respectively, carry
The treatment effeciency of high first reactor 001 and second reactor 002；Further, since first reactor 001 as production acid mutually and with
Waste dish for raw material carry out fermentation process, second reactor 002 as methanogenic phase and using production acid phase fermentation clout as raw material into
Row fermentation process, while the fermentation clout of methanogenic phase is back to the sour phase of production, therefore two benches anaerobic fermentation system can be formed, lead to
The separately positioned of two-phase is crossed, the reactor fluctuation of service caused by the accumulation of ammonia nitrogen in the prior art can be significantly improved
Problem, to ensure to grow under acid-producing bacteria and each comfortable optimal environmental condition of methanogen, so as to avoid different population interbiotic
Interfere with each other it is unbalanced with metabolite conversion and caused by inhibitory action, simultaneously because the opposite influent quality of production acid and volume are born
The change of lotus has stronger adaptability and cushioning effect, therefore can significantly cut down shadow of the service condition change to methanogen
Ring, so as to improve the treatment effeciency and operation stability from reflux cycle nitrification installation.The utility model embodiment provide from
Reflux cycle nitrification installation make use of the ammonia nitrogen of acid-producing bacteria and methanogen suppression in waste dish processing procedure to promote characteristic, be controlled by combining
System, reflux cycle and the method mitigation ammonia inhibition that fermentate in two reactors is replaced using the clout that ferments so that fermentation system
Middle ammonia nitrogen concentration is maintained at suitable scope, and highest can improve 60% compared with cutting down ammonia nitrogen cumulative concentration when non-circular treatment,
And the preprocessing means such as it is heat-treated to vegetables waste dish without conventional, it need not also add external source chemical reagent and regulate and control pH value.This
Utility model effectively realizes the stability of waste dish fermentation process, for the choosing of zymotechnique during waste dish fermentation recycling
Select and provide technical basis, while be that exploitation is adapted to nitrogen characteristic in vegetables waste dish and the method that cost-effectively regulation and control ammonia suppresses carries
Supply to use for reference, realized economic benefit and the double receipts of environmental benefit.
Alternatively, in order to control the waste dish amount of addition, to be more advantageous to reducing the ammonia nitrogen concentration in processing procedure, this practicality
New embodiment provide from reflux cycle nitrification installation, the waste dish raw material added into first reactor 001 is also referred to as waste dish
Slurry, is mass ratio 1:The waste dish and water of (1-1.5)；Preferably, the mass ratio of waste dish and water is 1:1.Waste dish slurry is referred to tail
Dish is smashed and mixed with water as the material after pulpous state.
Fig. 2 is that the easy structure from second reactor in reflux cycle nitrification installation that the utility model embodiment provides is shown
It is intended to.
Specifically, in order to be smoothed out the fermentation process in first reactor 001 or second reactor 002, such as Fig. 2 institutes
Show, the utility model embodiment provide from reflux cycle nitrification installation, first reactor 001 and second reactor 002 are by upper
Include gas distribution cloth water-bound 003, biological bed 004, barrier layer 005 and filter layer 006 successively to lower；Gas distribution cloth water-bound
003 is used for water distribution uniformity gas distribution into first reactor 001 or in second reactor 002；Biological bed 004 is used for the attached of bacterium
Growth；Barrier layer 005 is used to prevent bacterium from falling into filter layer 006；Filter layer 006 obtains ferment filtrate after being used for filter material
With fermentation filter residue.Since first reactor 001 and second reactor 002 independently carry out fermentation process, gas distribution water distribution
Structure 003 can be that the oxygen and water adapted to is provided in respective reaction device, and biological bed 004 can provide preferably attached for bacterium
Growing point, barrier layer 005 can effectively prevent the bacterium of biological bed 004 from falling into filter layer 006, avoid blocking filter layer
006 the problem of, ferment filtrate and fermentation filter residue can be effectively obtained by filtration in filter layer 006, so as to fulfill slag-liquid separation, in order to
Subsequently carry out different processing.Further, since change of the first reactor 001 to influent quality and volumetric loading has stronger fit
Should be able to power and cushioning effect, therefore can significantly cut down service condition and change influence to methanogen in second reactor 002,
So as to effectively improve the treatment effeciency from reflux cycle nitrification installation and the stability of operation.
Further, in order to provide the growing environment suitable for acid-producing bacteria or methanogen, as shown in Fig. 2, this practicality
New embodiment provide from reflux cycle nitrification installation, biological bed 004 includes non-woven fabrics construct, non-woven fabrics construct
For making bacterium carry out growth and breeding after adhering to.Can be bacterium since biological bed 004 includes non-woven fabrics construct
Attachment and growth provide the matrix of firm stable, ensure to grow under acid-producing bacteria and each comfortable optimal environmental condition of methanogen, from
And avoid in fermentation process different population it is interbiotic interfere with each other it is unbalanced with metabolite conversion and caused by inhibitory action；
Further, since change of the first reactor 001 to influent quality and volumetric loading has stronger adaptability and cushioning effect, because
This can significantly cut down influence of the service condition change to methanogen in second reactor 002, so as to effectively improve from reflux
Circulate the treatment effeciency of nitrification installation and the stability of operation.
Further, the bacterium of biological bed 004 falls into filter layer 006 in order to prevent, and the utility model embodiment carries
Supply from reflux cycle nitrification installation, barrier layer 005 includes nylon mesh layer.Since the durability of nylon mesh layer is good, have compared with
Strong chemical stability and mechanical property, to the better resistance of various environment, therefore can ensure to play barriering effect for a long time, keep away
Exempt to block filter layer 006 because bacterium falls into filter layer 006, while nylon mesh layer can also play biological bed 004 in support work
With avoiding the landing of biological bed 004.
Further, in order to improve the solid-liquid separation effect to material after fermentation, as shown in Fig. 2, the utility model is real
Apply example offer from reflux cycle nitrification installation, filter layer 006 includes float stone filled layer.Since filter layer 006 includes floating
Stone filled layer, therefore the material after fermentation can be effectively subjected to separation of solid and liquid.In use, isolated in second reactor 002
Filtrate component fall into the bottom of second reactor 002, flow back into the second reaction from the filtrate discharge port of second reactor 002
The feed inlet of device 002 realizes the effect from reflux, the filter residue isolated in second reactor 002 (containing waste dish slag solid constituent)
The feed inlet of first reactor 001 is flowed into by the discharge of filter residues mouth circulation of second reactor 002, is followed so as to realize from reflux
The effect of ring nitrification.
It should be added that, float stone is also known as pumice or foam, and unit weight is small herein, is a kind of nature of glass of porous light
Acid volcano effusive rock, its component is equivalent to rhyolite.Float stone rough surface, has light weight, intensity height, acid and alkali-resistance, corrosion resistant
The features such as losing, is pollution-free and "dead", is preferable natural green environment-friendly products.
Further, in order to accurately understand the pressure condition in first reactor 001 in real time, in order to control waste dish
Raw material enters the speed from reflux cycle nitrification installation, and such as Fig. 1, (solid arrow represents the thing containing waste dish slurry or waste dish slag in figure
Expect the direction circulated, dotted arrow represents ferment filtrate from the direction flowed back) shown in, the utility model embodiment provides
From in reflux cycle nitrification installation, pressure gauge 007 is additionally provided with first reactor 001.It is anti-to first by pressure gauge 007
The monitoring of pressure in device 001 is answered, the addition speed that operating personnel adjust waste dish raw material in time can be conducive to, ensures fermentation process
Stabilization successfully carry out.
Further, successfully circulated in order to ensure that material is stablized, as shown in Figure 1, this practicality is new
Type embodiment provide from reflux cycle nitrification installation, the discharge of filter residues mouth of second reactor 002 and first reactor 001
Drawing liquid is both provided between feed inlet and between the filtrate discharge port of second reactor 002 and the feed inlet of second reactor 002
Pump 008.In use, when needing to adjust the flowing velocity of material or liquid, can be controlled by drawing liquid pump 008, so that
It can realize the purpose for neatly adjusting course of fermentation in time.
Further, in order to improve fermentation efficiency, the utility model embodiment provide from reflux cycle nitrification installation
In, first reactor 001 can be provided with one or more；Second reactor 002 can be provided with one or more.Due to
One reactor 001 and second reactor 002 are respectively provided with one or more, therefore can effectively improve fermentation efficiency, can
To combine the number that needs of production sets corresponding first reactor 001 and second reactor 002.
Fig. 3 is another easy structure schematic diagram from reflux cycle nitrification installation that the utility model embodiment provides.
Preferably, as Fig. 3 (in figure solid arrow represent containing waste dish slurry or waste dish slag Matter Transfer flow direction,
Dotted arrow represents ferment filtrate from the direction flowed back) shown in, being nitrified from reflux cycle for the utility model embodiment offer fills
Put and be made of a first reactor 001 and two second reactors 002, waste dish slurry is introduced into first reactor 001 during use
Interior, the fermentation clout obtained after acid-producing bacteria ferments enters in second reactor 002, and the hydrogen of generation can enter hydrogen and receive
Collect in tank 011；Material continues to carry out separation of solid and liquid, obtained filter by filter layer 006 after the completion of fermenting in second reactor 002
Liquid flows back into the feed inlet of second reactor 002 again, and obtained waste dish filter residue circulation flows into the charging of first reactor 001
Mouth re-starts next round fermentation process, and methane is produced in second reactor 002 to be entered in methane collection tank 021.With showing
There is technology to compare, the utility model embodiment provide from reflux cycle nitrification installation, due to first reactor 001 as produce
Sour mutually and to carry out fermentation process using waste dish slurry for raw material, second reactor 002 is as methanogenic phase and to produce more than the fermentation of acid phase
Expect to carry out fermentation process for raw material, while the fermentation clout of methanogenic phase is back to the sour phase of production, therefore two benches anaerobism can be formed
Fermentation system, by the separately positioned of two-phase, can significantly improve the reactor caused by the accumulation of ammonia nitrogen in the prior art
The problem of fluctuation of service, to ensure to grow under acid-producing bacteria and each comfortable optimal environmental condition of methanogen, so as to avoid difference
Population is interbiotic interfere with each other it is unbalanced with metabolite conversion and caused by inhibitory action.
The utility model is made specifically from the structure and its course of work of reflux cycle nitrification installation with reference to Fig. 1-2
It is bright.
Such as Fig. 1, (solid arrow represents the direction that the Matter Transfer containing waste dish slurry or waste dish slag flows, dotted arrow in figure
Represent ferment filtrate from the direction flowed back) with reference to shown in Fig. 2, the utility model embodiment provides a kind of nitrified from reflux cycle and fills
Put, including first reactor 001 and second reactor 002；The discharge port of first reactor 001 and second reactor 002 into
Material mouth connects, and the discharge port of second reactor 002 is connected with the feed inlet of first reactor 001；Include in first reactor 001
Acid-producing bacteria, first reactor 001 are used to waste dish raw material carrying out fermentation process；Include methanogen in second reactor 002, the
Two reactors 002 are used to carry out fermentation process to the fermentation clout that first reactor 001 is discharged, and second reactor 002 is discharged
Fermentation clout be back to by discharge of filter residues mouth in first reactor 001；First reactor 001 and second reactor 002 are by upper
Include gas distribution cloth water-bound 003, biological bed 004, barrier layer 005 and filter layer 006 successively to lower；Gas distribution cloth water-bound
003 is used for water distribution uniformity gas distribution into first reactor 001 or in second reactor 002；Biological bed 004 is used for the attached of bacterium
Growth；Barrier layer 005 is used to prevent bacterium from falling into filter layer 006；Filter layer 006 obtains fermentation filter after being used for filter material
Liquid.In use, waste dish slurry, which enters, carries out fermentation process in first reactor 001, gas distribution cloth water-bound 003 is first reactor
Suitable air and water are provided in 001, waste dish slurry passes through the hair of the biological bed 004 containing acid-producing bacteria in first reactor 001
After ferment processing, then filtered by filter layer 006, obtained fermentation clout enters in second reactor 002, gas distribution water distribution knot
Structure 003 is provides suitable air and water in second reactor 002, by the life containing methanogen in second reactor 002
After the fermentation process of thing bed 004, then filtered by filter layer 006, filtrate flows back into the charging of second reactor 002
Mouthful, the feed inlet that the filter residue containing waste dish slag solid is recycled into first reactor 001 recycles, and is starched with the waste dish newly added
Next round fermentation process is carried out together.
Due to first reactor 001 as production acid mutually and using waste dish slurry as raw material progress fermentation process, second reactor 002
Fermentation process, while the fermentation clout reflux of methanogenic phase are carried out as methanogenic phase and by raw material of the fermentation clout of the sour phase of production
To the sour phase of production, therefore two benches anaerobic fermentation system can be formed, by the separately positioned of two-phase, the prior art can be significantly improved
It is middle because of the reactor fluctuation of service caused by the accumulation of ammonia nitrogen the problem of, to ensure that acid-producing bacteria and methanogen are each comfortable optimal
Grown under environmental condition, thus avoid different population it is interbiotic interfere with each other with metabolite conversion it is unbalanced and caused by suppression
Make and use.What the utility model embodiment provided make use of acid-producing bacteria and production in waste dish processing procedure from reflux cycle nitrification installation
Methane backeria ammonia nitrogen suppression promote characteristic, by jointly controlling, reflux cycle and using ferment clout replace two reactors in fermentate
Method mitigate ammonia and suppress so that ammonia nitrogen concentration is maintained at suitable scope in fermentation system, and highest cuts down ammonia nitrogen cumulative concentration
Can improve 60% compared with when non-circular treatment, and the preprocessing means such as be heat-treated to vegetables waste dish without conventional, also without
External source chemical reagent regulation and control pH value need to be added.What the utility model embodiment provided effectively realizes from reflux cycle nitrification installation
The stability of waste dish fermentation process, for zymotechnique during waste dish anaerobic fermentation recycling selection provide technology according to
According to, while be adapted to nitrogen characteristic in vegetables waste dish and cost-effectively regulate and control the method that ammonia suppresses to provide references to develop, realization
Economic benefit with environmental benefit is double receives.
Fig. 4 is the easy structure schematic diagram for the waste dish processing system that the utility model embodiment provides.
Other side according to the present utility model, the utility model embodiment provide a kind of waste dish processing system, such as Fig. 4
It is shown including above-mentioned from reflux cycle nitrification installation 100.
Compared with prior art, as shown in figure 4, the waste dish processing system that the utility model embodiment provides takes full advantage of
It is above-mentioned that there is more preferable impact resistance and stability from reflux cycle nitrification installation 100 and simple in structure, easily collaboration control
System, reduces operational management difficulty and cost, is suitable for handling the waste dish of field and the generation of middle small city；This practicality is new
The stability of waste dish fermentation process has been effectively ensured in type embodiment, for the choosing of zymotechnique during waste dish fermentation recycling
Select and provide technical basis, while be that exploitation is adapted to nitrogen characteristic in vegetables waste dish and the method that cost-effectively regulation and control ammonia suppresses carries
Supply to use for reference, realized economic benefit and the double receipts of environmental benefit；In addition, this vegetables waste dish that the utility model embodiment provides
Extensive processing mode, efficiently solve waste dish processing utilization rate deficiency, the problem of production capacity is relatively low, is waste dish recycling
Provide approach.
Further, as shown in figure 4, the waste dish processing system that the utility model embodiment provides further includes waste dish and locates in advance
Manage case 200 and remaining waste dish storage box 300；Waste dish pretreatment box 200 includes blender 201；The discharging of waste dish pretreatment box 200
Mouth is connected with from the feed inlet of reflux cycle nitrification installation 100, from discharge gate and the remaining waste dish of reflux cycle nitrification installation 100
The feed inlet connection of storage box 300.In actual use, waste dish and water are pressed 1:It is pre- that the mass ratio of (1-1.5) adds waste dish at the same time
In treatment box 200, waste dish is smashed and mixed with water by blender 201 and is starched for waste dish, then waste dish slurry is pre-processed by waste dish
The discharge port of case 200 enters from the feed inlet of first reactor 001 in reflux cycle nitrification installation 100, passes through the first reaction
The effect of acid-producing bacteria carries out the fermentation of production acid phase in device 001, and fermentation clout enters the by the discharge port of first reactor 001 again
The feed inlet of two reactors 002, the fermentation in methane phase stage is carried out by the effect of the methanogen in second reactor 002,
Fermentation filter residue is recycled back into first reactor 001 under the effect of drawing liquid pump 008, re-starts next round fermentation, ferment filtrate
Self-loopa flows back in second reactor 002；Waste dish slurry residue after fermentation completely by the discharge gate of second reactor 002 into
In the feed inlet for entering remaining waste dish storage box 300, so as to be collected in remaining waste dish storage box 300.
Fig. 5 is from ammonia nitrogen concentration in reflux cycle nitrification installation in the waste dish processing system that the utility model embodiment provides
Versus time curve.
In addition, in order to study ammonia nitrogen in above-mentioned waste dish processing system from the generation in reflux cycle nitrification installation, change
And accumulative rule, to be effectively improved the problem of ammonia nitrogen suppresses methanogen, and waste dish anaerobic fermentation experimental study is carried out, and
Its result of the test is analyzed respectively.
From figure 5 it can be seen that in testing twice, water outlet ammonia nitrogen concentration is substantially lower than influent ammonium concentration, shows tail
Puree is after the utility model waste dish processing system is from the progress nitrification processing of reflux cycle nitrification installation, the equal energy of ammonia nitrogen concentration
Enough obvious reductions.During beginning, influent ammonium concentration is above 700mg/L, and ammonia nitrogen concentration significantly reduces after 2 days, the 3rd day ammonia nitrogen
Concentration drops to below 500mg/L, and in whole device operational process, most of the time water outlet ammonia nitrogen concentration is respectively less than 300mg/L.
Since ammonia nitrogen concentration has stimulation in 50-300mg/L to fermentative microorganism, the progress of nitration reaction, ammonia nitrogen can be accelerated
Concentration has no adverse effect fermentative microorganism in 300-500mg/L, can also ensure being smoothed out for nitration reaction, therefore this
Utility model can significantly reduce ammonia nitrogen concentration, avoid during waste dish is handled ammonia nitrogen concentration excessive and suppress micro- life of fermenting
The fermentation of thing.By effectively solving the problems, such as ammonia inhibition, so as to be conducive to being smoothed out for whole fermentation reaction.
Although illustrate and describing the utility model with specific embodiment, but will be appreciated that without departing substantially from this reality
Many other change and modification can be made with the case of new spirit and scope.It is, therefore, intended that in appended power
Profit requires to include belonging to all such changes and modifications in the scope of the utility model.
Claims (10)
- It is 1. a kind of from reflux cycle nitrification installation, it is characterised in that including first reactor and second reactor；The discharge port of the first reactor is connected with the feed inlet of the second reactor, the discharge port of the second reactor Connected with the feed inlet of the first reactor；Include acid-producing bacteria in the first reactor, the first reactor is used to waste dish raw material carrying out fermentation process；Include methanogen in the second reactor, the second reactor is used for the fermentation to first reactor discharge Clout carries out fermentation process, and the fermentation clout of second reactor discharge is back in the first reactor.
- It is 2. according to claim 1 from reflux cycle nitrification installation, it is characterised in that the first reactor and described Two reactors from top to bottom include gas distribution cloth water-bound, biological bed, barrier layer and filter layer successively；The gas distribution cloth water-bound is used for water distribution uniformity gas distribution into the first reactor or in the second reactor；It is described Biological bed is used for the apposition growth of bacterium；The barrier layer is used to prevent bacterium from falling into the filter layer；The filter layer is used Ferment filtrate and fermentation filter residue are obtained after filter material.
- It is 3. according to claim 2 from reflux cycle nitrification installation, it is characterised in that the biology bed includes non-woven fabrics Construct, the non-woven fabrics construct are used to make bacterium carry out growth and breeding after adhering to.
- It is 4. according to claim 2 from reflux cycle nitrification installation, it is characterised in that the barrier layer includes nylon wire Layer.
- 5. according to claim 2-4 any one of them from reflux cycle nitrification installation, it is characterised in that the filter layer includes Float stone filled layer.
- It is 6. according to claim 2 from reflux cycle nitrification installation, it is characterised in that to be also set up in the first reactor There is pressure gauge.
- It is 7. according to claim 1 or 2 from reflux cycle nitrification installation, it is characterised in that the second reactor goes out Between the feed inlet of material mouth and the first reactor and the discharge port of the second reactor and the second reactor into Drawing liquid pump is both provided between material mouth.
- It is 8. according to claim 1 or 2 from reflux cycle nitrification installation, it is characterised in that the first reactor is set There is one or more；The second reactor is provided with one or more.
- 9. a kind of waste dish processing system, it is characterised in that nitrify and fill from reflux cycle including claim 1-8 any one of them Put.
- 10. waste dish processing system according to claim 9, it is characterised in that the waste dish processing system further includes waste dish Pretreatment box and remaining waste dish storage box；The waste dish pretreatment box includes blender；The discharge port of the waste dish pretreatment box is connected with the feed inlet from reflux cycle nitrification installation, described to be followed from reflux The discharge gate of ring nitrification installation is connected with the feed inlet of the remaining waste dish storage box.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107384770A (en) * | 2017-08-24 | 2017-11-24 | 农业部环境保护科研监测所 | From reflux cycle nitrification installation and apply its waste dish processing system |
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