CN106277656A - Changing food waste biogas slurry composting production system - Google Patents
Changing food waste biogas slurry composting production system Download PDFInfo
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- CN106277656A CN106277656A CN201610930853.4A CN201610930853A CN106277656A CN 106277656 A CN106277656 A CN 106277656A CN 201610930853 A CN201610930853 A CN 201610930853A CN 106277656 A CN106277656 A CN 106277656A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/28—Anaerobic digestion processes
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses changing food waste biogas slurry composting production system, relate to changing food waste processing technology field, biological curing unit, solid-liquid separation unit, multistage upgrading unit and the mother solution purification unit including controller and being attached thereto；Biological curing unit includes regulating reservoir, air floatation machine and hydrolytic tank, is connected by self priming pump one and pipeline between regulating reservoir with air floatation machine, and the clear liquid overfall of air floatation machine is connected with hydrolytic tank；The clear liquid decomposited from hydrolytic tank separates through solid-liquid separation unit, and the light liquid of solid-liquid separation of isolated enters the process of multistage upgrading unit, isolated solid-liquid separation dope as punching fertilising；The concentrated solution of multistage upgrading unit enters mother solution purification unit, concentrates clear liquid entrance water treatment system reprocessing；The concentration dope obtained after mother solution purification unit processes enters water treatment system reprocessing as foliage fertilizer mother solution, concentration clear liquid.The present invention can make full use of the nutrient substance in biogas slurry, reduces and wastes, and compact overall structure is easy to operate.
Description
Technical field
The present invention relates to changing food waste processing technology field, particularly relate to a kind of changing food waste biogas slurry composting production system.
Background technology
Changing food waste biogas slurry produces substantial amounts of reducing substances in high-temperature anaerobic fermentation, biogas slurry, puts after air contact
Go out substantial amounts of reaction heat, and containing more larger molecular organics in fermentation liquid, COD be high, fermented after organic molecule knot
Structure is stable, and biodegradability is poor, and regular oxidation is more than the speed of molecular structure oxidation Decomposition, shape to the oxidation rate of macro-radical
Become the larger molecular organics of difficult degradation；And fermentation liquid kills livestock containing Multiple Classes of Antibiotics and have microorganism and inhibitory action
Material and the ammonia nitrogen of high concentration, thus common environmental protection biochemical process is difficult to reach to administer purpose.It addition, fermentation liquid contains
More colloidal attitude SS and substantial amounts of inorganic salt, and with substantial amounts of difficult biochemical, the aobvious COD material of degraded, make at follow-up environment-protective water
During reason, biochemical sludge growth receives serious restriction.
It addition, containing the nutrient substance needed for abundant plant growing in biogas slurry, use conventional environment-protective water processing method,
Although having processed biogas slurry, but substantial amounts of fund cost must be spent, more it's a pity that the nutrient substance that will enrich in biogas slurry is wasted.
The most how scientific utilization biogas slurry, strengthens the use value of biogas slurry, it appears particularly necessary.
Summary of the invention
The technical problem to be solved is to provide a kind of changing food waste biogas slurry composting production system, and overall structure is tight
Gathering attractive in appearance, rationally distributed, floor space is little, easy to operate, it is possible to efficiently utilize the nutrient substance in biogas slurry, reduces waste, subtracts
Light environmental protection treatment load.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
Changing food waste biogas slurry composting production system, including controller, biological curing unit, solid-liquid separation unit, multistage concentration list
Unit and mother solution purification unit；Described biological curing unit includes regulating reservoir, air floatation machine and the hydrolytic tank being sequentially connected, described regulation
Be connected by self priming pump one and pipeline between pond with air floatation machine, the clear liquid overfall of described air floatation machine by self priming pump two and pipeline with
Hydrolytic tank is connected；The clear liquid decomposited from hydrolytic tank separates through solid-liquid separation unit, and the light liquid of solid-liquid separation of isolated enters
Multistage upgrading unit processes, isolated solid-liquid separation dope applies fertilizer as punching；The concentrated solution of multistage upgrading unit is as purification
Stock solution enters mother solution purification unit, and the concentration clear liquid being filtrated to get through multistage upgrading unit enters water treatment system reprocessing；Pure
Change stock solution to obtain concentrating dope as foliage fertilizer mother solution, the concentration that obtains after the reverse osmosis membrane assembly of mother solution purification unit processes
Clear liquid enters water treatment system reprocessing；Described biological curing unit, solid-liquid separation unit, multistage upgrading unit and mother solution purification
Unit is all connected with controller.
Preferably, described solid-liquid separation unit includes solid-liquid separation membrane module, separates light flow container and separation dope tank, described
The purified liquor outlet of hydrolytic tank is connected with solid-liquid separation membrane inlet with self priming pump three, through solid-liquid separation membrane module by pipeline
The light liquid of solid-liquid separation and solid-liquid separation dope after separation respectively enter the light flow container of separation and separate dope tank.
Preferably, solid-liquid separation original fluid container, described self priming pump it are additionally provided with between described hydrolytic tank and solid-liquid separation membrane module
Three are arranged between hydrolytic tank and solid-liquid separation original fluid container, and described solid-liquid separation original fluid container is provided with former with solid-liquid separation membrane inter-module
Liquid delivery pump；Described solid-liquid separation membrane module is additionally provided with drain pump, and the solid-liquid separation obtained through solid-liquid separation membrane components apart is light
Liquid enters and separates light flow container, isolated solid-liquid separation dope respectively enters solid-liquid separation original fluid container and separates dope tank.
Preferably, described multistage upgrading unit includes multistage concentration membrane module, purification original fluid container and concentrates Clear liquid tank, described
Separate and pass through pipeline between light flow container with multistage concentration membrane module and separate light liquid delivery pump, cartridge filter and high-pressure pump to be connected,
The concentration clear liquid being filtrated to get through multistage concentration membrane module enters concentration Clear liquid tank, non-filtering and concentrating liquid enters as purification stock solution
Purification original fluid container, is concentrated Clear liquid tank and is connected with follow-up water treatment system by clear liquid delivery pump.
Preferably, described mother solution purification unit includes being sequentially connected by pipeline feed liquid delivery pump, cartridge filter, height
Press pump and reverse osmosis membrane assembly, described feed liquid delivery pump is connected with the outlet of purification original fluid container, does not passes through the dense of reverse osmosis membrane assembly
Reduced concentration liquid enter concentrate dope tank, through reverse osmosis membrane assembly concentration clear liquid enter concentrate Clear liquid tank, concentrate Clear liquid tank pass through
Clear liquid delivery pump is connected with follow-up water treatment system, and described concentration dope tank passes through heavy liquor pump and follow-up filling apparatus phase
Even, foliage fertilizer mother solution is obtained through filling apparatus.
Preferably, it is additionally provided with transition pond one between described air floatation machine and hydrolytic tank, is provided with and steam in described transition pond one
The heat exchanger tube of pipeline connection；The outlet of described air floatation machine base sludge enters sludge-tank by pipeline, is additionally provided with in described sludge-tank
Outwards carry the sludge pump of mud.
Preferably, the port of export level of described self priming pump two is provided with outlet and outlet is horizontally set at the bottom of hydrolytic tank
Portion, and it is radially provided with several outlet branch roads along outlet length direction；The discharge pipeline arranged bottom described hydrolytic tank is by pipe
Road connects with sludge-tank, and described hydrolytic tank top drainpipe outlet is arranged in transition pond two, and described self priming pump triple feed inlet is arranged
In transition pond two；Discharge pipeline and drain pipe end in described hydrolytic tank are equipped with horizontal collecting pipe, described horizontal collecting pipe
It is radially provided with several import branch roads along its length.
Preferably, it is equipped with diving mixer in described regulating reservoir and hydrolytic tank.
Preferably, described solid-liquid separation membrane module is quartz filter, and described multistage concentration membrane module is multistage reverse osmosis
Permeable membrane filter assemblies forms, and described reverse osmosis membrane assembly selects DTRO film.
Preferably, temperature monitor and pH detector it are equipped with in described regulating reservoir and hydrolytic tank, in described transition pond one
It is provided with temperature monitor.
Use produced by technique scheme and have the beneficial effects that: through the air floatation machine of biological curing unit tentatively by natural pond
In liquid after the Impurity removal such as graininess, threadiness, utilize hydrolytic tank that the larger molecular organics in biogas slurry is resolved into little molecule
Labile material；Further utilize solid-liquid separation unit isolated solid-liquid separation dope to utilize as punching fertilising, separate
The light liquid of solid-liquid separation obtained enters multistage upgrading unit and processes；Concentrated solution after multistage upgrading unit processes is former as purification
Liquid enters mother solution purification unit, and the concentration clear liquid obtained enters water treatment system reprocessing, and purification stock solution is through mother solution purification unit
Reverse osmosis membrane assembly process after obtain concentrating dope and enter water treatment system again as foliage fertilizer mother solution, the concentration clear liquid that obtains
Process.Utilize the present invention can make full use of the nutrient substance in biogas slurry, reduce waste, alleviate environmental protection treatment load, overall knot
Structure is compact, rationally distributed, and floor space is little, easy to operate.
Accompanying drawing explanation
Fig. 1 is the flow chart of the changing food waste biogas slurry composting production system that the embodiment of the present invention provides；
Fig. 2 is the structural representation of biological curing unit in Fig. 1；
Fig. 3 is the structural representation of solid-liquid separation unit in Fig. 1；
Fig. 4 is the structural representation of multistage upgrading unit in Fig. 1；
Fig. 5 is the structural representation of mother solution purification unit in Fig. 1；
In figure: 1-regulating reservoir, 2-air floatation machine, 3-hydrolytic tank, 4-self priming pump one, 5-self priming pump two, 6-solid-liquid separation membrane module, 7-
Reverse osmosis membrane assembly, 8-separates light flow container, and 9-separates dope tank, 10-self priming pump three, 11-solid-liquid separation original fluid container, 12-stock solution
Delivery pump, 13-drain pump, 15-multistage concentration membrane module, 16-purification original fluid container, 17-concentrates Clear liquid tank, and it is defeated that 18-separates light liquid
Sending pump, 19-cartridge filter, 20-high-pressure pump, 21-clear liquid delivery pump, 22-feed liquid delivery pump, 23-concentrates dope tank, and 24-is dense
Liquid pump, 25-transition pond one, 26-steam pipework, 27-heat exchanger tube, 28-sludge-tank, 29-sludge pump, 30-outlet, 31-exports
Branch road, 32-discharge pipeline, 33-drain pipe, 34-transition pond two, the horizontal collecting pipe of 35-, 36-diving mixer, 37-temperature detection
Instrument, 38-pH detector, 39-liquidometer, 40-piezometer.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and be embodied as
Example, the present invention is further detailed explanation.Should be appreciated that specific embodiment described herein is only in order to explain this
Bright, it is not intended to limit the present invention.
Changing food waste biogas slurry characteristic index handled by the present invention is as follows: SS(float in biogas slurry) content≤1% is the highest
Allow content 2%；Temperature is 18 DEG C ~ 33 DEG C；Treating capacity 30m/d, feeds SS≤1%.
The changing food waste biogas slurry composting production system that the present invention provides, including controller, biological curing unit, solid-liquid separation
Unit, multistage upgrading unit and mother solution purification unit；Described biological curing unit includes regulating reservoir 1, the air floatation machine 2 being sequentially connected
With hydrolytic tank 3, described regulating reservoir 1 is connected by self priming pump 1 and pipeline with between air floatation machine 2, the clear liquid overflow of described air floatation machine 2
Mouth is connected with hydrolytic tank 3 by self priming pump 25 and pipeline, sees Fig. 2, and the biogas slurry after kitchen waste high-temperature anaerobic fermentation is being adjusted
Enter air floatation machine through self priming pump one after the homogenizing of joint pond, after the Impurity removal such as graininess, threadiness in biogas slurry, lead to through overflow head piece
Cross pipeline and self priming pump two enters in hydrolytic tank, the larger molecular organics in biogas slurry is resolved into the labile thing of little molecule
Matter, in order to follow-up carry out solid-liquid separation；The clear liquid decomposited from hydrolytic tank 3 separates through solid-liquid separation unit, consolidating of isolated
Liquid separates light liquid and enters the process of multistage upgrading unit, isolated solid-liquid separation dope as punching fertilising；Multistage upgrading unit
Concentrated solution enters mother solution purification unit as purification stock solution, and the concentration clear liquid being filtrated to get through multistage upgrading unit enters water process
System is reprocessed；Purification stock solution obtains concentrating dope as foliage fertilizer after the reverse osmosis membrane assembly 7 of mother solution purification unit processes
Mother solution, the concentration clear liquid obtained enter water treatment system reprocessing；Described biological curing unit, solid-liquid separation unit, multistage dense
Contracting unit is all connected with controller with mother solution purification unit.The schematic flow sheet of the present invention is as shown in Figure 1.
Further, such as Fig. 2, transition pond 1, described transition pond one between described air floatation machine 2 and hydrolytic tank 3, it are additionally provided with
Being provided with the heat exchanger tube 27 connected with steam pipework 26 in 25, in steam pipework 26, steam heats transition pond 1 by heat exchanger tube 27
Interior liquid, is preheated by heat exchanger tube steam, is more beneficial for biogas slurry hydrolysis；The outlet of described air floatation machine 2 base sludge is passed through
Pipeline enters sludge-tank 28, is additionally provided with the sludge pump 29 outwards carrying mud in described sludge-tank 28.
In order to improve biogas slurry characteristic, in described air floatation machine 2, it is additionally provided with flocculant dosing pump, passes through bioflocculation further
Adsorption removes colloid, eliminates the electrical of biogas slurry colloid, changes biogas slurry and is difficult to the characteristic of solid-liquid separation；Described air floatation machine 1
Air dissolved pump is arranged on outside air floatation machine, and is inflated in air floatation machine by air dissolved pump, to remove the impurity such as graininess, threadiness.
Carry through self priming pump one after biogas slurry homogenizing in regulating reservoir, enter air floatation machine, the impurity such as graininess, threadiness in biogas slurry
Being removed, air floatation machine water outlet gravity flow enters transition pond one；Pump into bottom hydrolytic tank by self priming pump two, dirty bottom precaution of hydrolysis pond
Mud settles；The hydrolytic tank supernatant enters transition pond two through receiving the gravity flow of water system；After hydrolysis, biogas slurry clear liquid is equal in transition pond two
After matter, it is delivered to solid-liquid separation unit through self priming pump three.Biological curing unit is the pretreating process as solid-liquid separation unit,
Remove colloid by biological treatment effect further, eliminate the electrical of biogas slurry colloid, change biogas slurry and be difficult to solid-liquid separation
Characteristic, thus alleviate the load that later separation concentrates, it is easy to follow-up separation concentrates.
As in figure 2 it is shown, the port of export level of described self priming pump 25 is provided with outlet 30 and outlet 30 is horizontally set on
Bottom hydrolytic tank 3, and it is provided with several outlet branch roads 31 along outlet 30 length direction radial level；Bottom described hydrolytic tank 3
The discharge pipeline 32 arranged is connected with sludge-tank 28 by pipeline, and drain pipe 33 outlet in described hydrolytic tank 3 top is arranged on transition pond
In 2 34, the import of described self priming pump 3 10 is arranged in transition pond 2 34；Discharge pipeline 32 in described hydrolytic tank 3 and drain pipe 33
End is equipped with horizontal collecting pipe 35, and described horizontal collecting pipe 35 radial level along its length is provided with several imports and props up
Road.Several outlet branch roads 31 are utilized the biogas slurry pumping in hydrolytic tank fully to be spread apart at the bottom of pond, it is to avoid precipitation；Hydrolyze
Finish, utilize multiple import branch road can accelerate mud and the discharge of clear liquid in hydrolytic tank.
Preferably, it is equipped with diving mixer 36 in described regulating reservoir 1 and hydrolytic tank 3, makes biogas slurry be sufficiently mixed, it is to avoid be heavy
Form sediment.
As it is shown on figure 3, described solid-liquid separation unit includes solid-liquid separation membrane module 6, separates light flow container 8 and separate dope tank
9, the purified liquor outlet of described hydrolytic tank 3 is connected, through solid-liquid with solid-liquid separation membrane module 6 charging aperture with self priming pump 3 10 by pipeline
The light liquid of solid-liquid separation and solid-liquid separation dope after separating film module 6 separation respectively enter the light flow container of separation 8 and separate dope tank
9。
Further as it is shown on figure 3, be additionally provided with solid-liquid separation stock solution between described hydrolytic tank 3 and solid-liquid separation membrane module 6
Tank 11, described self priming pump 3 10 is arranged between hydrolytic tank 3 and solid-liquid separation original fluid container 11, described solid-liquid separation original fluid container 11 with
Stock solution delivery pump 12 it is provided with between solid-liquid separation membrane module 6；Described solid-liquid separation membrane module 6 is additionally provided with drain pump 13, divides through solid-liquid
The light liquid of solid-liquid separation from membrane module 6 isolated enters and separates light flow container 8, isolated solid-liquid separation dope respectively enters solid
Liquid separation original fluid container 11 and separation dope tank 9, isolated solid-liquid separation dope enters solid-liquid separation original fluid container 11 and is circulated
Concentrate, after being concentrated to 10 times, enter separation dope tank 9 and use as punching fertilising.Clear liquid after hydrolytic tank processes enters solid
Liquid separation original fluid container, enters solid-liquid separation membrane module by stock solution delivery pump, can be in stock solution delivery pump and solid-liquid separation membrane group
Cartridge filter is installed between part, after the Impurity removals such as the graininess in material, threadiness, delivers into solid-liquid separation membrane group
Part, every solid-liquid separating equipment is equipped with a drain pump, to keep the operation pressure needed for filtering and flow velocity.Biogas slurry clear liquid exists
Under the effect of barometric gradient, wherein the part aqueous solution containing effective ingredient is collected through filtrate, and filtrate is micro-through filtrate
Hole is collected and is gone follow-up water treatment system to process to separation Clear liquid tank；It is not concentrated through the mud of filtrate, solid content etc.
Rear return original fluid container.
The solid-liquid separation dope being concentrated is to be concentrated after 10 times, just can enter separation dope tank 9, make as rushing fertilising
With.Because the solid content of solid-liquid separation dope is bigger, it is impossible to be directly used in water-fertilizer integral drip irrigation, and solid-liquid separation dope is to adopt
With physical method for separation concentrated solution out, the character of its material is similar to manufacturing foliage fertilizer composition, can do the punching property executed root manure.
Solid-liquid separation membrane module 6 is quartz filter, uses separation technology, the most under pressure, makes little
Molecule solute and solvent pass the special filtrate of certain pore size, and make macromole solute not pass through, and stay filtrate,
So that macromolecular substances has obtained the purification of part.This equipment separation accuracy is high, and permeate clear, 100% retains mud
With other solid contents, soluble-salt do not had interception capacity；Operation energy consumption can be greatly lowered, reduce product cost；Quartz sand
Filter acid and alkali resistance is splendid, intensity is high, wearability is good, service life is long, and filtrate aperture is mal-distribution simultaneously, and decay is slow,
High throughput filtration can be maintained；Discharge capacity is greatly reduced, and in biogas slurry, COD significantly reduces, and alleviates environmental protection pressure, room temperature closed-loop operation,
Ensure Product Activity；Quartz filter filtrate material and auxiliary equipment material are nonpollution material, and sealing member selects silicon rubber
Glue or politef, meet Production requirement；PLC Automatic Control is used by controller, simple to operate, reduce work strong
Degree, easy cleaning and maintenance.
As shown in Figure 4, described multistage upgrading unit includes multistage concentration membrane module 15, purification original fluid container 16 and concentrates clear liquid
Tank 17, passes through pipeline and separates light liquid delivery pump 18, cartridge filter between the light flow container of described separation 8 with multistage concentration membrane module 15
19 and high-pressure pump 20 be connected, the concentration clear liquid being filtrated to get through multistage concentration membrane module 15 enters and concentrates Clear liquid tank 17, do not filters
Concentrated solution enters purification original fluid container 16 as purification stock solution, and the concentrated solution obtained meets 3 times and concentrates requirement, concentrates Clear liquid tank 17 and leads to
Cross clear liquid delivery pump 21 to be connected with follow-up water treatment system.A certain amount of solid-liquid separation filtrate is collected when concentrating Clear liquid tank
After, just can open multistage concentration membrane module 15, concentrate clear liquid concentrated clear liquid delivery pump 18 and be delivered to cartridge filter 19 mistake
After filter, through high-pressure pump 20 supercharging, keep certain operation pressure and flow velocity to enter multistage concentration membrane module 15, filter and use circulation
The mode concentrated.Under the effect of the pressure, wherein aqueous solution is collected into concentration Clear liquid tank through filtrate, enters owner afterwards
Environment-protective water processing system；Enter purification original fluid container after the major part feed liquid Han effective ingredient through filtrate is not concentrated, enter with this
Row continuous concentration separates.Can shut down when feed liquid has processed and be rinsed.
Multistage concentration membrane module 15 uses multi-stage reverse osmosis film to be connected, and the mode using circulation to concentrate filters, higher than molten
Under the pressure effect of liquid osmotic pressure, only allowing water to pass through and do not allow other material permeances, the selective retention effect of filtrate is by molten
Solute in liquid separates with solvent.Owing to filtrate hole is the least, so utilizing stalling characteristic, that can effectively remove in water is molten
Solve the impurity such as salt, colloid, Organic substance, antibacterial, microorganism, the clearance of salt be can reach more than 95%.This equipment has without adding
Heat, less energy consumption, running continuous-stable, equipment volume is little, simple to operate, strong adaptability, and environment does not produce the excellent of pollution
Point.
As it is shown in figure 5, described mother solution purification unit includes that the feed liquid delivery pump 22 being sequentially connected by pipeline, security personnel are filtered
Device 19, high-pressure pump 20 and reverse osmosis membrane assembly 7, described feed liquid delivery pump 22 is connected with purification original fluid container 16 outlet, not through anti-
The concentration dope entrance concentration dope tank 23 of permeable membrane element 7, the concentration clear liquid through reverse osmosis membrane assembly 7 enter and concentrate clear liquid
Tank 17, is concentrated Clear liquid tank 17 and is connected with follow-up water treatment system by clear liquid delivery pump 21, and described concentration dope tank 23 passes through
Heavy liquor pump 24 is connected with follow-up filling apparatus, obtains foliage fertilizer mother solution through filling apparatus.It is concentrated to give through reverse osmosis membrane assembly 7
Concentration dope meet 3 times concentrate requirements；Filling apparatus has antibacterial kill, compound, the function such as fill, concentrate dope through thin
Bacterium is killed and removes noxious bacteria, avoids biological growth is caused unnecessary impact, and antibacterial is killed and carries out taste removal afterwards, then
Require the requirement to end product according to owner, concentration dope is prepared again, then packs, female as foliage fertilizer
Liquid is for sale；Under the effect of the pressure of high-pressure pump 20, wherein aqueous solution passes through the filtrate of reverse osmosis membrane assembly 7 and multistage concentration film
The concentration clear liquid that assembly 15 is filtrated to get is incorporated into concentration Clear liquid tank, owner's environment-protective water processing system to be entered.
Antibacterial in filling apparatus kills link, may be to biological growth owing to containing part noxious bacteria in biogas slurry
Impact, UHT technology can be used, major part antibacterial in dope will be concentrated and remove.Feed liquid is entered in sterilizer cold by centrifugal pump
Heat material heat-exchange device is preheated, then through over-filling the high temperature bucket of high pressure, material is rapidly heated to sterilization temperature also
Keep about 3 seconds before and after this.Material obtains cooling by the heat exchange with cold burden after going out high temperature bucket, and general temperature is less than 65 DEG C,
Steam consumption 0.67t/h.Within the extremely short time, ultra high temperature sterilization (UHTS) can obtain quality product, uses the heat exchanger having cold and hot material
There is the economic effect of Waste Heat Reuse, therefore steam consumption is little.Concentration dope after antibacterial kills link adds plant type again
Deodorizer, to improve biogas slurry abnormal flavour, then uses stirred tank to add trace element in compounding link, finally enters fill link and treat
Sell.
Described reverse osmosis membrane assembly 7 selects DTRO film, uses the mode that circulation concentrates, deliquescent N in biogas slurry, P, K,
Micro-element nutrition element is trapped concentration, and the dope that concentrates obtained can be envisaged for making the raw material of high-grade foliage fertilizer.DTRO film
Use open runner design, feed liquid effective runner width, it is to avoid physical clogging；Feed liquid is middle in filter process forms turbulence-like
State, decreases the generation of filter material surface fouling, pollution and concentration polarization phenomenon to the full extent, it is allowed to SDI value up to 20
High pollution water source, still without contaminated risk；Membrane module is effectively reduced fouling, and pollution alleviates, and the cleaning frequency is long, simultaneously filtrate
Special construction and Hydraulic design make assembly be readily cleaned, and after cleaning, flux recovery is the best, thus extends the life-span；DTRO
The filtration fraction of film is assembled by multiple filters and flow guiding disc, can carry out single replacing when filter need to be changed, for
What strainability was good may continue to use, and this maximum program decreases cost.
In order to improve biogas slurry degree of accuracy in processing procedure, in described regulating reservoir 1 and hydrolytic tank 3, it is equipped with temperature detection
Instrument 37 and pH detector 38, is provided with temperature monitor 37 in described transition pond 1.By the distributed AC servo system system in controller
System (DCS) carries out on-line monitoring.
It addition, in order to prevent feed liquid excessive, separating light flow container, separation dope tank, solid-liquid separation original fluid container, punching fertilising storage
Tank, purification original fluid container and concentration Clear liquid tank are equipped with liquidometer 39, and described liquidometer 39 is all connected with controller, it is possible to by control
Dcs (DCS) in device processed carries out on-line monitoring liquid level.
For the pipeline that output pressure is higher, such as stock solution delivery pump 12, separate light liquid delivery pump 18 and feed liquid delivery pump
It is equipped with on the export pipeline of 22 on piezometer 40, and the export pipeline of reverse osmosis membrane assembly 7, multistage concentration membrane module 15 also
Being provided with piezometer 40, carry out on-line monitoring output pressure by the dcs (DCS) in controller, protection equipment is just
Often run.
According to practical condition, described self priming pump one, self priming pump two, self priming pump three and stock solution delivery pump are disposed as two
Set, the using and the reserved, it is ensured that produce and be normally carried out.
Clean it addition, above multistage concentration membrane module 15 and reverse osmosis membrane assembly 7 are required to discontinuity in process of production.
This is accomplished by utilizing and cleans device to complete cleaning.Described cleaning device includes pickling tank, caustic treater, water washing tank and cleaning
Pump, after utilizing acid solution and alkali liquor to be carried out membrane module, recycling clear water is carried out.At interval of certain time, it is necessary to
Shut down and multistage concentration membrane module 15 and reverse osmosis membrane assembly 7 are carried out so that it is recover strainability, to reach optimal mistake
Filter effect.
The workflow of the present invention such as figure is as it is shown in figure 1, specific works flow process is as follows:
After biogas slurry enters regulating reservoir homogenizing, in self priming pump one pumps into air floatation machine, the impurity such as graininess, threadiness in biogas slurry is gone
After removing, then enter in hydrolytic tank through overflow head piece by pipeline and self priming pump two, by heat exchanger tube in hydrolytic tank with steam pipework even
Biogas slurry in logical heating hydrolytic tank, resolves into the labile material of little molecule by the larger molecular organics in biogas slurry, heavy after hydrolysis
The mud formed sediment enters sludge-tank together with the mud of precipitation in air floatation machine, is transported outward by sludge pump；Clear liquid after hydrolysis entered
Enter solid-liquid separation original fluid container through self priming pump three after crossing pond two homogenizing, through stock solution delivery pump, the pressurization of hydrolysis clear liquid is pumped into solid-liquid and divide
From membrane module, solid-liquid separation membrane module feed end is provided with drain pump, make biogas slurry clear liquid under the effect of barometric gradient, wherein part
Aqueous solution containing effective ingredient through filtrate and be collected, filtrate through filtrate micropore collect to separate light flow container goes follow-up
Water treatment system processes；Original fluid container is returned through the mud of filtrate, solid content etc., when the solid-liquid being concentrated after not being concentrated
Separating dope to be concentrated after 10 times, just can enter separation dope tank 9, the character of material is similar to manufacturing foliage fertilizer composition, can
Use as punching fertilising；Separate the separated light liquid delivery pump of solid-liquid separation clear liquid in light flow container entrance cartridge filter further will
After the Impurity removal such as graininess, threadiness, enter the reverse osmosis membrane of multistage concentration membrane module through high-pressure pump, use circulation to concentrate
Mode filters, and under the effect of the pressure, wherein aqueous solution is collected into concentration Clear liquid tank through filtrate, enters owner's ring afterwards
Water conservation processing system, enters purification original fluid container, in order to enter after the major part feed liquid Han effective ingredient through filtrate is not concentrated
The further continuous concentration of mother solution purification unit separates；In purification original fluid container, concentrated solution is through feed liquid delivery pump supercharging, through security personnel's filtration
After device tentatively filters, utilize high-pressure pump to pressurize further and enter DTRO film, under pressure through the concentration of DTRO film filtering material
Clear liquid enters and concentrates Clear liquid tank, enters owner's environment-protective water processing system, the deliquescent N in biogas slurry, P, K, micro-element nutrition
Element is trapped concentration, and the dope that concentrates obtained can be envisaged for making the mother solution raw material of high-grade foliage fertilizer.Concentrate dope in fill
Need before sale through antibacterial kill link, add galenical deodorizer to improve abnormal flavour, use stirred tank add trace element
Compound, finally enter back into fill link for sale.
Principle and the embodiment of the present invention are set forth by specific case used herein, saying of above example
Bright method and the core concept thereof being only intended to help to understand the present invention.It should be pointed out that, the ordinary skill for the art
For personnel, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve
Also fall in the protection domain of the claims in the present invention with modifying.
Claims (10)
1. changing food waste biogas slurry composting production system, it is characterised in that: include controller, biological curing unit, solid-liquid separation list
Upgrading unit first, multistage and mother solution purification unit；Described biological curing unit includes regulating reservoir (1), the air floatation machine being sequentially connected
And hydrolytic tank (3) (2), it is connected by self priming pump one (4) and pipeline between described regulating reservoir (1) with air floatation machine (2), described air floatation machine
(2) clear liquid overfall is connected with hydrolytic tank (3) by self priming pump two (5) and pipeline；The clear liquid warp decomposited from hydrolytic tank (3)
Solid-liquid separation unit separates, and the light liquid of solid-liquid separation of isolated enters the process of multistage upgrading unit, isolated solid-liquid separation
Dope is as punching fertilising；The concentrated solution of multistage upgrading unit enters mother solution purification unit as purification stock solution, concentrates list through multistage
The concentration clear liquid that unit is filtrated to get enters water treatment system reprocessing；Purification stock solution is through the reverse osmosis membrane assembly of mother solution purification unit
(7) obtain concentrating dope after processing and enter water treatment system reprocessing as foliage fertilizer mother solution, the concentration clear liquid that obtains；Described life
Thing solidified cell, solid-liquid separation unit, multistage upgrading unit are all connected with controller with mother solution purification unit.
Changing food waste biogas slurry composting production system the most according to claim 1, it is characterised in that: described solid-liquid separation unit
Including solid-liquid separation membrane module (6), separating light flow container (8) and separate dope tank (9), the purified liquor outlet of described hydrolytic tank (3) leads to
Cross pipeline to be connected with solid-liquid separation membrane module (6) charging aperture with self priming pump three (10), after solid-liquid separation membrane module (6) separates
The light liquid of solid-liquid separation and solid-liquid separation dope respectively enter the light flow container of separation (8) and separate dope tank (9).
Changing food waste biogas slurry composting production system the most according to claim 2, it is characterised in that: described hydrolytic tank (3) with
Being additionally provided with solid-liquid separation original fluid container (11) between solid-liquid separation membrane module (6), described self priming pump three (10) is arranged on hydrolytic tank (3)
And between solid-liquid separation original fluid container (11), between described solid-liquid separation original fluid container (11) and solid-liquid separation membrane module (6), it is provided with stock solution
Delivery pump (12)；Described solid-liquid separation membrane module (6) is additionally provided with drain pump (13), through solid-liquid separation membrane module (6) isolated
The light liquid of solid-liquid separation enter separate light flow container (8), isolated solid-liquid separation dope respectively enter solid-liquid separation original fluid container
(11) and separate dope tank (9).
Changing food waste biogas slurry composting production system the most according to claim 3, it is characterised in that: described multistage upgrading unit
Including multistage concentration membrane module (15), purification original fluid container (16) and concentration Clear liquid tank (17), the light flow container of described separation (8) is with multistage
Concentrate and be connected, through many with stock solution delivery pump (18), cartridge filter (19) and high-pressure pump (20) by pipeline between membrane module (15)
The concentration clear liquid that level concentration membrane module (15) is filtrated to get enters and concentrates Clear liquid tank (17), non-filtering and concentrating liquid as purification stock solution
Enter purification original fluid container (16), concentrate Clear liquid tank (17) and be connected with follow-up water treatment system by clear liquid delivery pump (21).
Changing food waste biogas slurry composting production system the most according to claim 4, it is characterised in that: described mother solution purification unit
Including the feed liquid delivery pump (22) being sequentially connected by pipeline, cartridge filter (19), high-pressure pump (20) and reverse osmosis membrane assembly
(7), described feed liquid delivery pump (22) is connected with purification original fluid container (16) outlet, and the concentration through reverse osmosis membrane assembly (7) is not dense
Liquid enter concentrate dope tank (23), through reverse osmosis membrane assembly (7) concentration clear liquid enter concentrate Clear liquid tank (17), concentrate clear liquid
Tank (17) is connected with follow-up water treatment system by clear liquid delivery pump (21), and described concentration dope tank (23) passes through heavy liquor pump
(24) it is connected with follow-up filling apparatus, obtains foliage fertilizer mother solution through filling apparatus.
Changing food waste biogas slurry composting production system the most according to claim 1, it is characterised in that: described air floatation machine (2) with
It is additionally provided with transition pond one (25) between hydrolytic tank (3), is provided with and changing that steam pipework (26) connects in described transition pond one (25)
Heat pipe (27)；The outlet of described air floatation machine (2) base sludge enters sludge-tank (28) by pipeline, and described sludge-tank also sets in (28)
There is the sludge pump (29) outwards carrying mud.
Changing food waste biogas slurry composting production system the most according to claim 6, it is characterised in that: described self priming pump two (5)
Port of export level be provided with outlet (30) and outlet (30) is horizontally set on hydrolytic tank (3) bottom, and along outlet (30)
Length direction radial level is provided with several outlets branch road (31)；The discharge pipeline (32) that described hydrolytic tank (3) bottom is arranged passes through
Pipeline connects with sludge-tank (28), and described hydrolytic tank (3) top drain pipe (33) outlet is arranged in transition pond two (34), described
Self priming pump three (10) import is arranged in transition pond two (34)；Discharge pipeline (32) in described hydrolytic tank (3) and drain pipe (33)
End is equipped with horizontal collecting pipe (35), and described horizontal collecting pipe (35) radial level along its length is provided with several imports
Branch road.
Changing food waste biogas slurry composting production system the most according to claim 1, it is characterised in that: described regulating reservoir (1) and
Diving mixer (36) it is equipped with in hydrolytic tank (3).
Changing food waste biogas slurry composting production system the most according to claim 4, it is characterised in that: described solid-liquid separation membrane group
Part (6) is quartz filter, and described multistage concentration film group (15) is multi-stage reverse osmosis membrane filtration module composition, described reverse osmosis
DTRO film selected by membrane module (7).
Changing food waste biogas slurry composting production system the most according to claim 6, it is characterised in that: described regulating reservoir (1) and
It is equipped with temperature monitor (37) and pH detector (38) in hydrolytic tank (3), in described transition pond one (25), is provided with temperature detection
Instrument (37).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610930853.4A CN106277656A (en) | 2016-10-31 | 2016-10-31 | Changing food waste biogas slurry composting production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930853.4A CN106277656A (en) | 2016-10-31 | 2016-10-31 | Changing food waste biogas slurry composting production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747706A (en) * | 2017-02-17 | 2017-05-31 | 衢州市宁莲畜牧业有限公司 | A kind of biogas slurry film concentrating and separating prepares biogas slurry fertilizer cycle production process |
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| JP2006281035A (en) * | 2005-03-31 | 2006-10-19 | Sumitomo Heavy Ind Ltd | Apparatus and method for treating organic waste |
| CN102080104A (en) * | 2010-07-09 | 2011-06-01 | 深圳市东江环保股份有限公司 | Comprehensive treatment method for preparing gas and fertilizer by utilizing kitchen waste |
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