CN102249507A - Livestock and poultry muck treatment system and method based on membrane concentration technology - Google Patents
Livestock and poultry muck treatment system and method based on membrane concentration technology Download PDFInfo
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- CN102249507A CN102249507A CN2011100950566A CN201110095056A CN102249507A CN 102249507 A CN102249507 A CN 102249507A CN 2011100950566 A CN2011100950566 A CN 2011100950566A CN 201110095056 A CN201110095056 A CN 201110095056A CN 102249507 A CN102249507 A CN 102249507A
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Abstract
The invention discloses a livestock and poultry muck treatment system and method based on a membrane concentration technology. The system comprises a first-stage anaerobic fermentation reactor, a solid-liquid separation device, a membrane concentration device and a second-stage anaerobic fermentation reactor. According to the technical core of the treatment system, the membrane concentration technology is used for concentrating biogas slurry which is produced by the first-stage anaerobic fermentation reactor and then treated by the solid-liquid separation device, and then clean liquid and concentrated biogas slurry are separated, the clean liquid obtained after membrane concentration is subjected to aerobic ammonium removal and other subsequent treatments and then is used for the blending of the anaerobic fermentation raw materials in the first-stage anaerobic fermentation reactor or is directly discharged, and the concentrated biogas slurry is subjected to second-stage high-efficiency anaerobic fermentation to further generate biogas, thereby the energy utilization rate of the livestock and poultry muck is improved and the fermentation residues can be finally put into agricultural application. The method is simple in process, the production amount of the biogas slurry can be significantly reduced, the difficulty of agricultural application and the cost of intermediate transport, storage and other steps are lowered, and the purposes of efficient recycling and zero discharge of the livestock and poultry muck are achieved.
Description
Technical field
The energy regeneration that the present invention relates to a kind of livestock and poultry feces utilizes technology, relate in particular to a kind of employing based on the high efficient energy sources utilization of the livestock and poultry feces of membrane concentration technology and the system and method for zero emission, for the biogas engineering construction based on livestock and poultry feces of plant provides technical support.
Background technology
Livestock culture already is the important component part of China's agricultural rural economy, along with greatly developing of livestock culture industry, the environmental problem that livestock and poultry feces caused becomes increasingly conspicuous, and influences Economic development, jeopardize ecological safety, become one of social common concern and problem demanding prompt solution.The livestock and poultry breeding industry livestock and poultry feces quantity discharged that particularly intensifies is big, concentrate, and generally do not have enough soils that it is dissolved around the plant, makes plant husbandry and aquaculture disconnect, and causes livestock and poultry feces surplus and polluting in certain zone.
In recent years; country supports and promotes large-scale cultivation field biogas engineering based on anaerobic fermentation technology energetically; promote to culture the harmless treatment and the recovery energy of excrement dirt; not only can eliminate environmental pollution; produce clean energy biogas; the natural pond liquid and the natural pond slag that produce can also be produced organic fertilizer, adapt to the growth requirement of energy-saving and emission-reduction and energy reproducible utilization, meet demand of breeding enterprise own and national sustainable development strategy.Yet the problem of dissolving of a large amount of natural ponds liquid that produces in the biogas engineering becomes one of key factor of its development of restriction.
See also Fig. 1, in the prior art, biogas engineering generally includes following content at the treatment scheme of livestock and poultry feces: at first in anaerobic fermentation reactor livestock and poultry feces is carried out the fermentation raw material pre-treatment, processing such as acidication and anaerobically fermenting, its output object comprises biogas and fermentation residuum, biogas wherein is transported to and burns in the energy utilization device or recycling such as generating, the fermentation residuum is sent to and carries out solid-liquid separation in the equipment for separating liquid from solid, the high part (natural pond slag) of isolated solids content through modification handle and the allotment back as organic fertilizer supply agricultural use, and isolated a large amount of liquid portion (natural pond liquid) also be a kind of organic manure resource, but because its generation is big, the fertilizer efficiency index is lower, general periphery does not have enough soils of dissolving, and remote transportation cost is higher; Secondly, there is obvious seasonal again in natural pond liquid agricultural use, needs enough big storage space, causes a construction cost higher, and then cost is huge directly to handle the back qualified discharge.There is serious threat in " directly utilizing on the spot " that present natural pond liquid often can not obtain expecting to surrounding enviroment.So the higher value application of natural pond liquid in the mass-producing biogas engineering (being the high added value utilization of natural pond liquid) technology has become a vital technical bottleneck problem, is a gordian technique difficult problem of needing solution badly.
Summary of the invention
For overcoming the shortcoming of prior art, the present invention proposes a kind of livestock and poultry feces treatment system and method based on the membrane concentration technology, it utilizes the membrane concentration technology that a large amount of natural ponds liquid of output in the biogas engineering is concentrated, separates and further fermentative processing, to reduce the quantum of output of natural pond liquid, solve natural pond liquid in difficult problems that the aspect faced such as later stage storage, transportation and recyclings.
For achieving the above object, the invention provides a kind of livestock and poultry feces treatment system based on the membrane concentration technology, comprise: the one-level anaerobic fermentation reactor, the fermentation raw material that comprises livestock and poultry feces is admitted to and wherein carries out the anaerobically fermenting processing, its output object comprises biogas and fermentation resistates, and wherein the biogas with institute's output exports this system outside to by gas pipe line; Equipment for separating liquid from solid, comprise solid-liquid separating machine, described fermentation resistates sent in this equipment for separating liquid from solid by wherein solid-liquid separating machine is set carry out solid-liquid separation and handle, isolate natural pond slag and the main natural pond liquid of forming by liquid portion mainly formed, wherein export described natural pond slag to this system outside by e Foerderanlage by solid part; Film condensing device is sent into described natural pond liquid in this film condensing device and to be concentrated and separating treatment, isolates clear liquid and concentrated natural pond liquid, wherein described clear liquid is utilized or qualified discharge after subsequent processes by transport pipe output again; And B grade anaerobic fermentation reactor, described concentrated natural pond liquid is admitted to and carries out the processing of secondary anaerobically fermenting in this B grade anaerobic fermentation reactor, its output object comprises natural pond liquid behind biogas and the second order fermentation, wherein the biogas with output exports this system outside to by gas pipe line, and exports natural pond liquid behind the second order fermentation of institute's output to this system outside for agricultural application by e Foerderanlage.
According to embodiments of the invention, this film condensing device comprises: natural pond liquid pretreatment unit comprises: sandfiltration pot, and the described natural pond liquid after the process solid-liquid separation is sent in this sandfiltration pot by connecting tube and is filtered, with the solids of filtering big particle; Acidifying regulating tank, the natural pond liquid after sand filtration are admitted in this acidifying regulating tank, and mix from the acid solution in the acid bath, and the liquid acidifying of described natural pond is adjusted to predetermined acidity; And core formula strainer, the natural pond liquid after acidifying is regulated is admitted to this core formula strainer and carries out micro-filtration, further the solids of filtering molecule; And this film condensing device also comprises: the reverse osmosis membrane post, be connected to the core formula strainer of this natural pond liquid pretreatment unit by transport pipe and high-pressure pump, pump into from the natural pond liquid of this core formula strainer bottom from this reverse osmosis membrane post, slowly rise under pressure and filter and shunt, thereby isolate clear liquid and concentrated natural pond liquid; Clean solution tank is transported in this clean solution tank through the isolated clear liquid of this reverse osmosis membrane post; And concentrated natural pond liquid pool, be transported in this concentrated natural pond liquid pool through this isolated concentrated natural pond of reverse osmosis membrane post liquid.
According to embodiments of the invention, this reverse osmosis membrane post comprises: shell, make by glass reinforced plastic; The multilayer diaphragm, every tunic sheet is made by resistant to pollution reverse osmosis membrane; And a plurality of flow guiding discs, make by high-strength material, per two formation of described a plurality of flow guiding discs are a pair of, every pair of positive and negative interlocking of flow guiding disc, described a plurality of diaphragms are clipped in wherein, in this shell, pile up many from bottom to top to flow guiding disc, described natural pond liquid is flowed through described many to the multilayer diaphragm in the flow guiding disc from bottom to top successively, the liquid that goes out by described membrane filtration forms clear liquid, the liquid that is trapped forms and concentrates natural pond liquid, and described clear liquid flows out this reverse osmosis membrane post via different runners respectively with described concentrated natural pond liquid.
According to embodiments of the invention, this B grade anaerobic fermentation reactor is one of up-flow anaerobic sludge blanket, expanded granular sludge bed or anaerobism inner circulation reactor, described concentrated natural pond liquid from this film condensing device carries out the processing of secondary anaerobically fermenting therein, removes the organism in the liquid of described concentrated natural pond in output biogas.
According to embodiments of the invention, directly be back in this one-level anaerobic fermentation reactor from the clear liquid of this film condensing device the fermentation raw material that comprises livestock and poultry feces is allocated.
According to embodiments of the invention, clear liquid from this film condensing device carries out aerobic deamination processing in being arranged at the clear liquid after-treatment device of this system outside, to handle back clear water qualified discharge, clear water is back in this one-level anaerobic fermentation reactor the fermentation raw material that comprises livestock and poultry feces is allocated after maybe will handling.
According to embodiments of the invention, this one-level anaerobic fermentation reactor is flow lifting type solid anaerobic reactor or continuous-stirring reactor, and described anaerobically fermenting processing comprises carries out pre-treatment, acidication and anaerobically fermenting to described fermentation raw material.
According to embodiments of the invention, in being arranged at the agricultural application system of this system outside, carry out modification from the natural pond slag of this equipment for separating liquid from solid and handle, thereby as organic fertilizer for agricultural application; And in this agricultural application system, carry out nutrition deployment from the concentrated natural pond liquid of this second anaerobic fermentation reactor and handle, thereby as organic fertilizer for agricultural application.
For achieving the above object, the invention provides a kind of livestock and poultry feces treatment process based on the membrane concentration technology, it adopts aforesaid livestock and poultry feces treatment system that the fermentation raw material that comprises livestock and poultry feces is handled, and this method may further comprise the steps:
S1) fermentation raw material that will comprise livestock and poultry feces is sent into and is carried out anaerobically fermenting in the one-level anaerobic fermentation reactor and handle, output biogas and fermentation resistates, and wherein the biogas with institute's output is used by the energy utilization device that gas pipe line exports this system outside to;
S2) described fermentation resistates is sent into carried out solid-liquid separation in the equipment for separating liquid from solid and handle, isolate natural pond slag and the main natural pond liquid of forming by liquid portion mainly formed, wherein described natural pond slag is carried out modification processing back for agricultural application by the agricultural application system that e Foerderanlage exports this system outside to by solid part;
S3) described natural pond liquid is sent in this film condensing device concentrated and separating treatment, isolate clear liquid and concentrated natural pond liquid; And
S4) described concentrated natural pond liquid is sent into carried out once more anaerobically fermenting in the B grade anaerobic fermentation reactor and handle, natural pond liquid behind output biogas and the second order fermentation, wherein the biogas of institute's output is exported by gas pipe line, and natural pond liquid behind the second order fermentation of institute's output is undertaken supplying agricultural application behind the nutrition deployment by the agricultural application system that e Foerderanlage exports this system outside to.
According to embodiments of the invention, in step S3, from the natural pond liquid of one-level anaerobic fermentation reactor at first in the liquid pretreatment unit of natural pond, carry out sand filtration successively, acid is regulated and micro-filtration is handled, in the membrane concentration unit, concentrate then and separate.
According to embodiments of the invention, after step S4, directly be back in this one-level anaerobic fermentation reactor from the clear liquid of film condensing device the fermentation raw material that comprises livestock and poultry feces is allocated.
According to embodiments of the invention, after step S4, clear liquid from film condensing device carries out aerobic deamination processing in the clear liquid after-treatment device of this system outside, to handle back clear water qualified discharge, clear water is back in this one-level anaerobic fermentation reactor the fermentation raw material that comprises livestock and poultry feces is allocated after maybe will handling.
According to embodiments of the invention, should be further comprising the steps of based on the livestock and poultry feces treatment process of membrane concentration technology:
After step S2, in being arranged at the agricultural application system of this system outside, carry out modification from the natural pond slag of this equipment for separating liquid from solid and handle, thereby as organic fertilizer for agricultural application; And after step S4, in this agricultural application system, carry out nutrition deployment from the concentrated natural pond liquid of this second anaerobic fermentation reactor and handle, thereby as organic fertilizer for agricultural application.
The present invention utilizes the membrane concentration technology that natural pond liquid is concentrated, nutritive substance and the organism held back in the liquid of natural pond by the membrane concentration technology concentrate natural pond liquid to form, isolate clear liquid simultaneously, wherein, described concentrated natural pond liquid is carried out fermentative processing through high efficiency anaerobic reactor once more, further produce biogas and remove the organism that concentrates in the liquid of natural pond simultaneously, make that the natural pond liquid after fermentative processing once more can be directly agricultural after the nutrition allotment, and, isolated clear liquid also can realize the recycle of water resources after handling through aerobic deamination.
Overall technology of the present invention can significantly reduce the quantum of output of natural pond liquid, reduced the later stage carrying cost of natural pond liquid, also make the biogas production capacity of biogas engineering maximize simultaneously, and realized the recycle of water resources and the direct utilization on agricultural of natural pond liquid, have significant comprehensive benefit.
Description of drawings
Fig. 1 is the skeleton diagram of the livestock and poultry feces treatment system based on the membrane concentration technology of the present invention.
Fig. 2 is the schema of the livestock and poultry feces treatment process based on the membrane concentration technology of the present invention.
Fig. 3 is the structural representation of membrane concentration tripping device according to an embodiment of the invention.
Fig. 4 is the local structure synoptic diagram of the reverse osmosis membrane post of membrane concentration tripping device shown in Figure 3.
Wherein, description of reference numerals is as follows:
1-one-level anaerobic fermentation reactor
The 2-equipment for separating liquid from solid
The 3-film condensing device
31-natural pond liquid pretreatment unit
The 311-sandfiltration pot
312-acidifying regulating tank
313-core formula strainer
32-reverse osmosis membrane post
The 321-shell
The 322-diaphragm
The 323-flow guiding disc
The 33-clean solution tank
34-concentrates the natural pond liquid pool
4-B grade anaerobic fermentation reactor
5-clear liquid after-treatment device
6-agricultural application system
Embodiment
The present invention is described further below in conjunction with accompanying drawing and example.
As shown in Figure 1, it is the skeleton diagram of the livestock and poultry feces treatment system based on the membrane concentration technology of the present invention.According to one embodiment of present invention, the livestock and poultry feces treatment system based on the membrane concentration technology comprises one-level anaerobic fermentation reactor 1, equipment for separating liquid from solid 2, film condensing device 3 and the B grade anaerobic fermentation reactor 4 that is interconnected by transport pipe.
Wherein, the fermentation raw material that comprises livestock and poultry feces is admitted in the one-level anaerobic fermentation reactor 1, with be present in the one-level anaerobic fermentation reactor 1 anerobe this carry out anaerobically fermenting and handle, its output object comprises biogas and fermentation resistates, the biogas of institute's output is transported to this system outside by gas pipe line, burns or generating etc. for the biogas utilization device.
In equipment for separating liquid from solid 2, comprise solid-liquid separating machine, described fermentation resistates sent in this equipment for separating liquid from solid 2 by wherein solid-liquid separating machine is set carry out solid-liquid separation and handle, isolate natural pond slag and the main natural pond liquid of forming by liquid portion mainly formed by solid part, export described natural pond slag to this system outside by e Foerderanlage, after overnutrition and moisture allotment, can carry out agricultural application such as field irrigation for agricultural application system 6.
The natural pond liquid of output in the equipment for separating liquid from solid 2 is sent in the film condensing device 3 and is concentrated and separating treatment, isolate clear liquid and concentrated natural pond liquid, wherein with described clear liquid by transport pipe output again utilization or after subsequent processes qualified discharge.
Be admitted to from the concentrated natural pond liquid of film condensing device 3 and carry out the secondary anaerobically fermenting in the B grade anaerobic fermentation reactor 4 and handle, its output object comprises natural pond liquid behind biogas and the second order fermentation, wherein the biogas with output exports this system outside to by gas pipe line, and export natural pond liquid behind the second order fermentation of institute's output to this system outside by e Foerderanlage, carry out agricultural application such as field irrigation for agricultural application system 6.
Fig. 3 illustrates the structural representation of membrane concentration tripping device 3 according to an embodiment of the invention, and its concrete structure is as follows:
Wherein, natural pond liquid pretreatment unit 31 comprises: sandfiltration pot 311, and the described natural pond liquid after the process solid-liquid separation is sent in this sandfiltration pot 311 by connecting tube and is filtered, with the solids of filtering big particle; Acidifying regulating tank 312, the natural pond liquid after sand filtration are admitted in this acidifying regulating tank 312, and mix from the acid solution in the acid bath, and the liquid acidifying of described natural pond is adjusted to predetermined acidity; And core formula strainer 313, the natural pond liquid after acidifying is regulated is admitted to this core formula strainer 313 and carries out micro-filtration, further the solids of filtering molecule.
In reverse osmosis membrane post 32, be connected to the core formula strainer 313 of this natural pond liquid pretreatment unit 31 by transport pipe and high-pressure pump, pump into from the natural pond liquid of this core formula strainer 313 bottom from this reverse osmosis membrane post 32, slowly rise under pressure and filter and shunt, thereby isolate clear liquid and concentrated natural pond liquid.
Be transported in this clean solution tank 33 through these reverse osmosis membrane post 32 isolated clear liquids, and be transported in this concentrated natural pond liquid pool 34 through these reverse osmosis membrane post 32 isolated concentrated natural pond liquid.
Fig. 4 is the local structure synoptic diagram (the multilayer diaphragm 322 that a pair of flow guiding disc 323 only is shown and wherein clips) of the reverse osmosis membrane post of membrane concentration tripping device shown in Figure 3.As shown in Figure 4, reverse osmosis membrane post 32 of the present invention can adopt dish tubular membrane column assembly to realize that it specifically comprises: shell 321, make by glass reinforced plastic; Multilayer diaphragm 322, every tunic sheet 323 is made by resistant to pollution reverse osmosis membrane; And a plurality of flow guiding discs 323, make by high-strength materials such as plastics or resins, per two formation of described a plurality of flow guiding disc 323 are a pair of, every pair of flow guiding disc 322 positive and negative interlocking, described a plurality of diaphragms 322 are clipped in wherein, in this shell 321, pile up many from bottom to top to flow guiding disc 323, described natural pond liquid is flowed through described many to the multilayer diaphragm 323 in the flow guiding disc 323 from bottom to top successively, the liquid that filters out by described diaphragm 323 forms clear liquid, the liquid that is trapped forms and concentrates natural pond liquid, and described clear liquid flows out this reverse osmosis membrane post 32 via different runners respectively with described concentrated natural pond liquid.
Dish tubular membrane column assembly is used to carry out the processing of percolate usually.It has open wide runner and unique band salient point flow guiding disc, feed liquid forms turbulence state in assembly, reduced the generation of film surface scale, pollution and concentration polarization phenomenon to the full extent, even make dish tubular membrane column assembly under the highly compressed working pressure, also can embody its superior performance.In addition, dish tubular membrane column assembly can also effectively be avoided the fouling of film, alleviates the film pollution level, and the life-span of reverse osmosis membrane is prolonged, and its special construction and hydromechanics design make membrane module be easy to clean, and it is restorative very good to clean the back flux, thereby has prolonged the diaphragm life-span.
The present invention is applied to concentrating of natural pond liquid with this dish tubular membrane column assembly and separates, and has obtained good treatment effect and very high processing efficiency.
According to one embodiment of present invention, one-level anaerobic fermentation reactor 1 wherein is flow lifting type solid anaerobic reactor or continuous-stirring reactor, and these two kinds of reactors are generally used for the anaerobic fermentation process of high solid concentration material in the prior art.Described anaerobically fermenting handle be meant with solid substances liquefaction and wherein organism be converted into the process of biogas.The product of one-level anaerobically fermenting is natural pond liquid, still contain a certain amount of organism in the liquid of natural pond, but concentration is relatively low, handles if natural pond liquid is proceeded anaerobically fermenting, then can cause reactor volume to be multiplied, and reaction efficiency reduces greatly.
B grade anaerobic fermentation reactor 4 is an efficient anaerobic reactor such as up-flow anaerobic sludge blanket, expanded granular sludge bed or anaerobism inner circulation reactor, described concentrated natural pond liquid from this film condensing device 3 carries out the processing of secondary anaerobically fermenting therein, removes the organism in the liquid of described concentrated natural pond in output biogas.These reactors are used to carry out sewage disposal in the prior art usually, and compare aforementioned flow lifting type solid anaerobic reactor or continuous-stirring reactor have higher reaction efficiency.But because it requires the solids concn of treatment sewage can not be too high, the anaerobically fermenting that therefore can not be used to carry out livestock and poultry feces is handled, but is suitable for the concentrated natural pond liquid from film condensing device 3 of the present invention is handled.
Therefore, the present invention adopts the membrane concentration technology that the natural pond liquid that contains large quantity of moisture from equipment for separating liquid from solid 2 is concentrated, make concentrated natural pond liquid be entered the B grade anaerobic fermentation reactor 4 that only is used for sewage disposal usually and further handle, thereby realized best treatment effect and processing efficiency.And no matter be to enter one-level anaerobic fermentation reactor 1 once more or directly B grade anaerobic fermentation reactor 4 is handled without the natural pond liquid of membrane concentration, its effect is all not satisfactory.
According to one embodiment of present invention, can directly be back in this one-level anaerobic fermentation reactor 1 from the clear liquid of this film condensing device 3 fermentation raw material that comprises livestock and poultry feces is allocated (promptly diluting).
Perhaps, clear liquid from this film condensing device 3 also can carry out aerobic deamination processing in being arranged at the clear liquid after-treatment device 5 of this system outside, to handle back clear water qualified discharge, clear water is back in this one-level anaerobic fermentation reactor 1 fermentation raw material that comprises livestock and poultry feces is allocated after maybe will handling.
Natural pond slag from this equipment for separating liquid from solid 2 can carry out the modification processing in being arranged at the agricultural application system 6 of this system outside, thereby supplies agricultural application as organic fertilizer; And
Concentrated natural pond liquid from this second anaerobic fermentation reactor 4 can carry out the nutrition deployment processing in agricultural application system 6, thereby supplies agricultural application as organic fertilizer.
Here indication agricultural application system 6 is more wide in range sayings, and it can be a cover agricultural facility, also can be diverse agricultural facility, can be according to the different of its application and application scenario and specific configuration.
Below in conjunction with Fig. 2 the livestock and poultry feces treatment process based on the membrane concentration technology of the present invention is described.
When adopting aforesaid livestock and poultry feces treatment system that the fermentation raw material that comprises livestock and poultry feces is handled, its treatment process may further comprise the steps:
The fermentation raw material that S1 will comprise livestock and poultry feces is sent into and is carried out anaerobically fermenting in the one-level anaerobic fermentation reactor 1 and handle, output biogas and fermentation resistates, and wherein the biogas with institute's output is used by the energy utilization device that gas pipe line exports this system outside to;
S2 sends into described fermentation resistates and carries out the solid-liquid separation processing in the equipment for separating liquid from solid 2, isolate natural pond slag and the main natural pond liquid of forming by liquid portion mainly formed, wherein described natural pond slag is carried out modification processing back for agricultural application by the agricultural application system 6 that e Foerderanlage exports this system outside to by solid part;
S3 sends into described natural pond liquid in this film condensing device 3 and concentrates and separating treatment, isolates clear liquid and concentrated natural pond liquid; And
S4 sends into described concentrated natural pond liquid and carries out once more the anaerobically fermenting processing in the B grade anaerobic fermentation reactor 4, natural pond liquid behind output biogas and the second order fermentation, wherein the biogas of institute's output is exported by gas pipe line, and natural pond liquid behind the second order fermentation of institute's output is undertaken supplying agricultural application behind the nutrition deployment by the agricultural application system 6 that e Foerderanlage exports this system outside to.
Wherein, in step S3, from the natural pond liquid of one-level anaerobic fermentation reactor 1 at first in natural pond liquid pretreatment unit 31, carry out sand filtration successively, acid is regulated and micro-filtration is handled, in membrane concentration unit 32, concentrate then and separate.
After step S4, directly be back in this one-level anaerobic fermentation reactor 1 from the clear liquid of film condensing device 3 fermentation raw material that comprises livestock and poultry feces is allocated.
After step S4, clear liquid from film condensing device 3 carries out aerobic deamination processing in the clear liquid after-treatment device 5 of this system outside, to handle back clear water qualified discharge, clear water is back in this one-level anaerobic fermentation reactor 1 fermentation raw material that comprises livestock and poultry feces is allocated after maybe will handling.
Livestock and poultry feces treatment process based on the membrane concentration technology of the present invention is further comprising the steps of:
After step S2, in being arranged at the agricultural application system 6 of this system outside, carry out modification from the natural pond slag of this equipment for separating liquid from solid 2 and handle, thereby as organic fertilizer for agricultural application; And
After step S4, in this agricultural application system 6, carry out nutrition deployment from the concentrated natural pond liquid of this second anaerobic fermentation reactor 4 and handle, thereby as organic fertilizer for agricultural application.
The present invention utilizes the membrane concentration technology that natural pond liquid is concentrated, nutritive substance and the organism held back in the liquid of natural pond by the membrane concentration technology concentrate natural pond liquid to form, isolate clear liquid simultaneously, wherein, described concentrated natural pond liquid is carried out fermentative processing through B grade anaerobic fermentation reactor efficiently once more, further produce biogas and remove the organism that concentrates in the liquid of natural pond simultaneously, make that the natural pond liquid after fermentative processing once more can be directly agricultural after the nutrition allotment, and, isolated clear liquid also can realize the recycle of water resources after handling through aerobic deamination.
Overall technology of the present invention can significantly reduce the quantum of output of natural pond liquid, reduced the later stage carrying cost of the huge natural pond liquid of water content, also make the biogas production capacity of biogas engineering maximize simultaneously, and realized the recycle of water resources and the direct utilization on agricultural of natural pond liquid, have significant comprehensive benefit.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (13)
1. livestock and poultry feces treatment system based on the membrane concentration technology comprises:
One-level anaerobic fermentation reactor (1), the fermentation raw material that comprises livestock and poultry feces are admitted to and wherein carry out the anaerobically fermenting processing, and its output object comprises biogas and fermentation resistates, and wherein the biogas with institute's output exports this system outside to by gas pipe line;
Equipment for separating liquid from solid (2), comprise solid-liquid separating machine, described fermentation resistates sent in this equipment for separating liquid from solid (2) by wherein solid-liquid separating machine is set carry out solid-liquid separation and handle, isolate natural pond slag and the main natural pond liquid of forming by liquid portion mainly formed, wherein export described natural pond slag to this system outside by e Foerderanlage by solid part;
Film condensing device (3) is sent into described natural pond liquid in this film condensing device (3) and to be concentrated and separating treatment, isolates clear liquid and concentrated natural pond liquid, wherein described clear liquid is utilized or qualified discharge after subsequent processes by transport pipe output again; And
B grade anaerobic fermentation reactor (4), described concentrated natural pond liquid is admitted to and carries out the processing of secondary anaerobically fermenting in this B grade anaerobic fermentation reactor (4), its output object comprises natural pond liquid behind biogas and the second order fermentation, wherein the biogas with output exports this system outside to by gas pipe line, and exports the natural pond liquid of institute's output to this system outside for agricultural application by e Foerderanlage.
2. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 1, wherein this film condensing device (3) comprising:
Natural pond liquid pretreatment unit (31) comprising:
Sandfiltration pot (311), the described natural pond liquid after the process solid-liquid separation is sent in this sandfiltration pot (311) by connecting tube and is filtered, with the solids of filtering big particle;
Acidifying regulating tank (312), the natural pond liquid after sand filtration are admitted in this acidifying regulating tank (312), and mix from the acid solution in the acid bath, and the liquid acidifying of described natural pond is adjusted to predetermined acidity; And
Core formula strainer (313), the natural pond liquid after acidifying is regulated is admitted to this core formula strainer (313) and carries out micro-filtration, further the solids of filtering molecule; And
Reverse osmosis membrane post (32), be connected to the core formula strainer (313) of this natural pond liquid pretreatment unit (31) by transport pipe and high-pressure pump, pump into from the natural pond liquid of this core formula strainer (313) bottom from this reverse osmosis membrane post (32), rise under pressure and filter and shunt, thereby isolate clear liquid and concentrated natural pond liquid;
Clean solution tank (33) is transported in this clean solution tank (33) through the isolated clear liquid of this reverse osmosis membrane post (32); And
Concentrate natural pond liquid pool (34), be transported in this concentrated natural pond liquid pool (34) through this isolated concentrated natural pond of reverse osmosis membrane post (32) liquid.
3. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 2, wherein this reverse osmosis membrane post (32) comprising:
Shell (321) is made by glass reinforced plastic;
Multilayer diaphragm (322), every tunic sheet (323) is made by resistant to pollution reverse osmosis membrane; And
A plurality of flow guiding discs (323), make by high-strength material, per two formation of described a plurality of flow guiding disc (323) are a pair of, the anti-phase button of every pair of flow guiding disc (322), described a plurality of diaphragms (322) are clipped in wherein, in this shell (321), pile up many from bottom to top to flow guiding disc (323), described natural pond liquid is flowed through described many to the multilayer diaphragm (323) in the flow guiding disc (323) from bottom to top successively, the liquid that filters out by described diaphragm (323) forms clear liquid, the liquid that is trapped forms and concentrates natural pond liquid, and described clear liquid flows out this reverse osmosis membrane post (32) via different runners respectively with described concentrated natural pond liquid.
4. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 1 and 2, wherein this B grade anaerobic fermentation reactor (4) is one of up-flow anaerobic sludge blanket, expanded granular sludge bed or anaerobism inner circulation reactor, described concentrated natural pond liquid from this film condensing device (3) carries out the processing of secondary anaerobically fermenting therein, removes the organism in the liquid of described concentrated natural pond in output biogas.
5. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 1 and 2 wherein, directly is back in this one-level anaerobic fermentation reactor (1) from the clear liquid of this film condensing device (3) fermentation raw material that comprises livestock and poultry feces is allocated.
6. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 1 and 2, wherein, clear liquid from this film condensing device (3) carries out aerobic deamination processing in being arranged at the clear liquid after-treatment device (5) of this system outside, to handle back clear water qualified discharge, clear water is back in this one-level anaerobic fermentation reactor (1) fermentation raw material that comprises livestock and poultry feces is allocated after maybe will handling.
7. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 1 and 2, wherein this one-level anaerobic fermentation reactor (1) is flow lifting type solid anaerobic reactor or continuous-stirring reactor, and described anaerobically fermenting processing comprises carries out pre-treatment, acidication and anaerobically fermenting to described fermentation raw material.
8. the livestock and poultry feces treatment system based on the membrane concentration technology according to claim 1 and 2 wherein, natural pond slag from this equipment for separating liquid from solid (2) carries out the modification processing in being arranged at the agricultural application system (6) of this system outside, thereby supplies agricultural application as organic fertilizer; And
Concentrated natural pond liquid from this second anaerobic fermentation reactor (4) carries out the nutrition deployment processing in this agricultural application system (6), thereby supplies agricultural application as organic fertilizer.
9. livestock and poultry feces treatment process based on the membrane concentration technology, it adopts as any described livestock and poultry feces treatment system in the claim 1 to 8 fermentation raw material that comprises livestock and poultry feces is handled, and this method may further comprise the steps:
S1) fermentation raw material that will comprise livestock and poultry feces is sent into and is carried out anaerobically fermenting in the one-level anaerobic fermentation reactor (1) and handle, output biogas and fermentation resistates, wherein the biogas with institute's output is used by the energy utilization device that gas pipe line exports this system outside to;
S2) described fermentation resistates is sent into carried out solid-liquid separation in the equipment for separating liquid from solid (2) and handle, isolate natural pond slag and the main natural pond liquid of forming by liquid portion mainly formed, wherein described natural pond slag is carried out modification processing back for agricultural application by the agricultural application system (6) that e Foerderanlage exports this system outside to by solid part;
S3) described natural pond liquid is sent in this film condensing device (3) concentrated and separating treatment, isolate clear liquid and concentrated natural pond liquid; And
S4) described concentrated natural pond liquid is sent into carried out once more anaerobically fermenting in the B grade anaerobic fermentation reactor (4) and handle, output biogas and natural pond liquid, wherein the biogas of institute's output is exported by gas pipe line, and the natural pond liquid of institute's output is undertaken supplying agricultural application behind the nutrition deployment by the agricultural application system (6) that e Foerderanlage exports this system outside to.
10. the livestock and poultry feces treatment process based on the membrane concentration technology according to claim 9, in step S3, from the natural pond liquid of one-level anaerobic fermentation reactor (1) at first in natural pond liquid pretreatment unit (31), carry out sand filtration successively, acid is regulated and micro-filtration is handled, in membrane concentration unit (32), concentrate then and separate.
11. the livestock and poultry feces treatment process based on the membrane concentration technology according to claim 9, after step S4, directly be back in this one-level anaerobic fermentation reactor (1) from the clear liquid of film condensing device (3) fermentation raw material that comprises livestock and poultry feces is allocated.
12. the livestock and poultry feces treatment process based on the membrane concentration technology according to claim 9, after step S4, clear liquid from film condensing device (3) carries out aerobic deamination processing in the clear liquid after-treatment device (5) of this system outside, to handle back clear water qualified discharge, clear water is back in this one-level anaerobic fermentation reactor (1) fermentation raw material that comprises livestock and poultry feces is allocated after maybe will handling.
13. the livestock and poultry feces treatment process based on the membrane concentration technology according to claim 9 is further comprising the steps of:
After step S2, in being arranged at the agricultural application system (6) of this system outside, carry out modification from the natural pond slag of this equipment for separating liquid from solid (2) and handle, thereby as organic fertilizer for agricultural application; And
After step S4, in this agricultural application system (6), carry out nutrition deployment from the natural pond liquid of this second anaerobic fermentation reactor (4) and handle, thereby as organic fertilizer for agricultural application.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701558A (en) * | 2012-07-02 | 2012-10-03 | 黑龙江省辰光能源科技有限公司 | Fermenting and methane-generating technique of cow dung liquid by utilizing solar energy |
| CN104058799A (en) * | 2014-06-24 | 2014-09-24 | 山东民和生物科技有限公司 | Biogas slurry concentrate and engineering preparation method |
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| CN106754283A (en) * | 2016-12-13 | 2017-05-31 | 陕西理工学院 | One kind circulation solid-liquid B grade anaerobic fermentation system |
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| CN111362544A (en) * | 2020-04-02 | 2020-07-03 | 中国农业大学 | Method for producing liquid organic fertilizer and clean reuse water of farm from biogas slurry |
| CN113968664A (en) * | 2021-12-08 | 2022-01-25 | 深圳市华研环保科技有限公司 | Livestock and poultry manure environment-friendly treatment equipment for inhibiting fermentation and reducing ammonia content |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402530A (en) * | 2008-07-21 | 2009-04-08 | 北京桑德环保集团有限公司 | Method and equipment for producing organic liquid fertilizer with biogas slurry |
| CN101402533A (en) * | 2008-10-30 | 2009-04-08 | 浙江林学院 | Insecticide fertilizer for tomato production based on biogas slurry concentrated liquor and process for producing biogas slurry concentrated liquor |
| EP2135938A1 (en) * | 2008-06-20 | 2009-12-23 | Sergio Trabattoni | Anaerobic fermentation process and plant |
| US20100193416A1 (en) * | 2009-01-30 | 2010-08-05 | Barbaro Ronald D | Non-biological removal and recovery of nutrients from waste |
-
2011
- 2011-04-15 CN CN2011100950566A patent/CN102249507B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2135938A1 (en) * | 2008-06-20 | 2009-12-23 | Sergio Trabattoni | Anaerobic fermentation process and plant |
| CN101402530A (en) * | 2008-07-21 | 2009-04-08 | 北京桑德环保集团有限公司 | Method and equipment for producing organic liquid fertilizer with biogas slurry |
| CN101402533A (en) * | 2008-10-30 | 2009-04-08 | 浙江林学院 | Insecticide fertilizer for tomato production based on biogas slurry concentrated liquor and process for producing biogas slurry concentrated liquor |
| US20100193416A1 (en) * | 2009-01-30 | 2010-08-05 | Barbaro Ronald D | Non-biological removal and recovery of nutrients from waste |
Non-Patent Citations (1)
| Title |
|---|
| 宋成芳等: "畜禽养殖废弃物沼液的膜过滤浓缩试验研究", 《中国给水排水》 * |
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