CN105130121B - The processing method of anaerobic digestion solution in a kind of livestock and poultry cultivation - Google Patents
The processing method of anaerobic digestion solution in a kind of livestock and poultry cultivation Download PDFInfo
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- CN105130121B CN105130121B CN201510551166.7A CN201510551166A CN105130121B CN 105130121 B CN105130121 B CN 105130121B CN 201510551166 A CN201510551166 A CN 201510551166A CN 105130121 B CN105130121 B CN 105130121B
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Abstract
The invention discloses a kind of processing method of anaerobic digestion solution in livestock and poultry cultivation, including coagulating sedimentation pretreatment, filtering pretreatment and water plant Ecological Disposal step, there is certain complexity and larger variability for livestock and poultry feces anaerobic digestion solution composition, rational coagulation-settlement process is determined, optimize temperature, pH value, mixing parametric, the coagulant of suitable ingredients and dosage is added simultaneously, realize coagulant in the case where SS is removed, colloidal substance in effective absorption system, reach the effect of removal COD, effectively reduce the treatment load of subsequent processing units, by the way of physical absorption and biological adsorption are combined, realize classification absorption, and utilize rational water plant Ecological Disposal, it has been effectively accomplished COD, phosphate, ammonia nitrogen removal effect.
Description
Technical field
The invention belongs to sewage treatment area, more particularly, to a kind of processing method of anaerobic digestion solution in livestock and poultry cultivation.
Background technology
With the adjustment and the development of new countryside construction of agricultural structure, intensive, scale animal and poultry cultivation industry is quick
Development, produces a large amount of Animal fecal pollutions, sewage the like waste therewith.National feces of livestock and poultry annual emissions in 2000 have surpassed according to statistics
2,700,000,000 t are crossed, equivalent to 3.4 times of trade waste annual emissions.Livestock and poultry cultivation waste has turned into China Rural Plane Source Pollution master
Originate.
Anaerobic treatment method can not only remove great amount of soluble organic matter in the organic wastewater of livestock and poultry farm high concentration, and
And disease carrying germ can be killed, be conducive to epidemic prevention.Anaerobic treatment method can produce biogas, biogas slurry, biogas residue, and it is comprehensive to be that feces of livestock and poultry is able to
The important means that conjunction is utilized.And because it has the advantages that small investment, operating cost be low, energy environment comprehensive benefit is high, into
It is processing unit important in livestock and poultry farm treatment for cow manure method.But still containing suitable in livestock and poultry feces anaerobic digestion solution
The organic pollution of quantity, after high COD sewage enters farmland, organic matter decomposes rapid, and the intermediate product of generation is harmful to crop,
The underproduction is caused, while also generating methane isothermal chamber gas, atmospheric environment is constituted a threat to.At this stage, anaerobic digestion solution is used as agriculture
Fertilizer or directly discharge or the discharge after simple oxidation pond is processed, seldom consider treatment up to standard.Because China is big-and-middle
Type biogas engineering biogas slurry yield is big, and oxygen digestive juice is stored and transportation facility imperfection；China's farmland land management disperses, peasant household
Possess land area small so that biogas slurry also field cannot still be widely implemented, and directly discharging can cause environmental pollution.Therefore, plus
Strong anaerobic digestion solution Processing Technology Research is particularly important, and be on the one hand capable of achieving safety and effectively utilization by processing, another
Aspect can provide efficient resource with qualified discharge for agricultural, and its mishandling environmental problem for causing can be solved again.Have
The double meaning economized on resources with environmental protection.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of processing method of anaerobic digestion solution in livestock and poultry cultivation,
Using livestock and poultry feces anaerobic digestion solution coagulation-filtration enhancement pretreatment and water plant ecology joint processing technology, while building
Row meets discharge standard requirement outside water plant landscape, water outlet, effectively reduces livestock and poultry feces anaerobic digestion solution COD, nitrogen discharge and phosphorus discharge.
The complete technical scheme of the present invention includes：
The processing method of anaerobic digestion solution in a kind of livestock and poultry cultivation, including coagulating sedimentation pretreatment, filtering pretreatment and water
Plant Ecological Disposal step,
Described coagulating sedimentation pre-treatment step is：Anaerobic digestion solution is imported into precipitation by liquid reserve tank through digestive juice entrance
In groove, described stillpot is enclosed construction, with concrete cell body and seal closure, heater is provided with described cell body
Structure, described heating arrangements use electrical heating or gas heating；There is digestive juice entrance and exit on cell body, set on seal closure
There are machine mixer, ultrasonic vibration installation and coagulant to add mouth；
Start heating arrangements, the temperature of anaerobic digestion solution be heated to 35 DEG C -45 DEG C, be subsequently added 10% watery hydrochloric acid with
15% dilute sulfuric acid mixed solution, by the regulation of the pH values of anaerobic digestion solution to 5.8-6.2, starts machine mixer, first with
The rotating speed high-speed stirred 10min of 250r/min, while coagulant is added, after alumen ustum occurs in digestive juice surface, with 120r/min's
Rotating speed moderate-speed mixer 10-15min, then with the rotating speed low rate mixing 10min of 35r/min, closes mixer, quiescent setting
10min；
Described coagulant component includes inorganic coagulant component and organic coagulants component, and specific proportioning is by weight
For：Bodied ferric sulfate 2-4 parts, seven iron chloride hexahydrate 1-2 parts, polysilicate aluminum ferric chloride 8-10 parts, aluminum sulfate 3-5 parts, poly- third
Acrylamide 0.5-0.8 parts, wooden sodium sulfonate 1-1.2 parts, Calcium Disodium Versenate 0.5-0.8 parts, alum 0-0.5 parts,
Shitosan 0.1-0.3 parts, addition is 2-3kg coagulant/ton digestive juice；
Filtering pre-treatment step is：The digestive juice that will be pre-processed by coagulating sedimentation is exported by digestive juice and derived, and is entered
Filter adsorbent equipment is processed, and is first directed to regulating tank, while importing adsorption filtration post through booster pump carries out filtering pretreatment,
Described adsorption filtration post includes primary adsorption Filter column and secondary absorption Filter column, has suction in described primary adsorption Filter column
Attached filler, described adsorption stuffing is activated carbon, attapulgite, zeolite, and specific quality proportioning is activated carbon：Attapulgite：Boiling
Stone=(8-10)：(3-5)：(2-3), described adsorption stuffing particle diameter is 100-2000 microns, described secondary absorption Filter column
Inside there is biological adsorption agent,
Water plant Ecological Disposal step is：Enter water plant Ecological Disposal system by filtering pretreated digestive juice
System carries out water plant Ecological Disposal, and described water plant ecological treatment system includes sewage storage container, water distribution system, collection
Water system and water sample collection device, initially enter sewage storage container, through water inlet after by filtering pretreated digestive juice
Pump enters collecting system, and described collecting system includes boulder bed, packing layer and water plant layer, described cobble from bottom to top
Thickness degree is 5cm, is arranged between flowing line, and packing layer lays washing layer of sand, zeolite layer, dephosphorization filler successively from bottom to top
Layer, washing layer of sand, packing layer the superiors laying water distributor line form water distribution system, and digestive juice is in water plant ecological treatment system
In residence time be 1-2 days.
Described biological adsorption agent is edible mushroom, the mixed biologic adsorbent of Bacillus acidi lactici/nitric acid bacillus.
Described water plant ecological treatment system is the container of 10m long 4m wide 10m high, has 8.
The water plant that described water plant layer is planted is the one kind in floral leaf reed, common reed, calamus, cattail
Or it is various.
In coagulating sedimentation pre-treatment step, digestive juice is stirred by the way of the vibration of mechanical agitation coupling ultrasonic ripple
Mix.
The present invention is relative to the advantage of prior art：
There is certain complexity and larger variability for livestock and poultry feces anaerobic digestion solution composition, it is determined that rational coagulation
Depositing technology, optimizes temperature, pH values, mixing parametric, while the coagulant of suitable ingredients and dosage is added, using its shape
There is certain electric charge and adsorption bridging feature into hydrolysate surface, realize that coagulant, in the case where SS is removed, is effectively adsorbed
Colloidal substance in system, reaches the effect of removal COD, the treatment load of subsequent processing units is effectively reduced, using physics
The mode that absorption and biological adsorption are combined, realizes classification absorption, and rational water plant Ecological Disposal is effectively accomplished
COD, phosphate, ammonia nitrogen removal effect.
Brief description of the drawings
Fig. 1 is the structural representation of the stillpot in the present invention.
Fig. 2 is the filtering adsorpting device structural representation in the present invention.
Fig. 3 is the water plant ecological treatment system structural representation in the present invention.
In figure：1 is concrete cell body, and 2 is seal closure, and 3 is heating arrangements, and 4 is digestive juice entrance, and 5 export for digestive juice,
6 is machine mixer, and 7 is ultrasonic vibration installation, and 8 is that coagulant adds mouth, and 9 is regulating tank, and 10 inhale to increase pump, 11 for one-level
Attached Filter column, 12 is secondary absorption Filter column, and 13 is sewage storage container, and 14 is intake pump, and 15 is collecting system, and 16 is cobble
Layer, 17 is packing layer, and 18 is water plant layer, and 19 is water distribution system, and 20 is water sample collection device.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
The processing method of anaerobic digestion solution in a kind of livestock and poultry cultivation, including coagulating sedimentation pretreatment, filtering pretreatment and water
Plant Ecological Disposal step,
Described coagulating sedimentation pre-treatment step is：It is heavy that anaerobic digestion solution is imported into by liquid reserve tank through digestive juice entrance 4
In the groove of shallow lake, described stillpot is enclosed construction, with concrete cell body 1 and seal closure 2, heating is provided with described cell body
Mechanism 3, described heating arrangements use electrical heating or gas heating；There is digestive juice entrance 4 and outlet 5, seal closure on cell body
On be provided with machine mixer 6, ultrasonic vibration installation 7 and coagulant and add mouth 8；
Start heating arrangements, the temperature of anaerobic digestion solution be heated to 35 DEG C -45 DEG C, be subsequently added 10% watery hydrochloric acid with
15% dilute sulfuric acid mixed solution, by the regulation of the pH values of anaerobic digestion solution to 5.8-6.2, starts machine mixer, first with
The rotating speed high-speed stirred 10min of 250r/min, while coagulant is added, after alumen ustum occurs in digestive juice surface, with 120r/min's
Rotating speed moderate-speed mixer 10-15min, then with the rotating speed low rate mixing 10min of 35r/min, closes mixer, quiescent setting
10min；Preferably, digestive juice can be stirred by the way of the vibration of mechanical agitation coupling ultrasonic ripple.
Described coagulant component includes inorganic coagulant component and organic coagulants component, and specific proportioning is by weight
For：Bodied ferric sulfate 2-4 parts, seven iron chloride hexahydrate 1-2 parts, polysilicate aluminum ferric chloride 8-10 parts, aluminum sulfate 3-5 parts, poly- third
Acrylamide 0.5-0.8 parts, wooden sodium sulfonate 1-1.2 parts, Calcium Disodium Versenate 0.5-0.8 parts, alum 0-0.5 parts,
Shitosan 0.1-0.3 parts, addition is 2-3kg coagulant/ton digestive juice；
The digestive juice that will be pre-processed by coagulating sedimentation is derived by digestive juice outlet 5, at filtering adsorpting device
Reason, is first directed to regulating tank 9, while importing adsorption filtration post through booster pump 10 carries out filtering pretreatment, described absorption
Filter post includes primary adsorption Filter column 11 and secondary absorption Filter column 12, has adsorption stuffing in described primary adsorption Filter column,
Described adsorption stuffing is activated carbon, attapulgite, zeolite, and specific quality proportioning is activated carbon：Attapulgite：Zeolite=(8-
10)：(3-5)：(2-3), described adsorption stuffing particle diameter is 100-2000 microns, has biology in described secondary absorption Filter column
Adsorbent, described biological adsorption agent is edible mushroom, the mixed biologic adsorbent of Bacillus acidi lactici/nitric acid bacillus；
Water plant Ecological Disposal is carried out into water plant ecological treatment system by filtering pretreated digestive juice,
Described water plant ecological treatment system is the container of 100cm long 40cm wide 100cm high, has 8, including sewage storage is held
Device 13, water distribution system 19, collecting system 15 and water sample collection device 20, dirt is initially entered by filtering pretreated digestive juice
Water storage container, collecting system is entered after through intake pump 14, and described collecting system includes boulder bed 16, filler from bottom to top
Layer 17 and water plant layer 18, described boulder bed thickness is 5cm, is arranged between flowing line, and packing layer is from bottom to top successively
Washing layer of sand, zeolite layer, dephosphorization filler layer, washing layer of sand are laid, packing layer the superiors laying water distributor line forms water distribution system,
The water plant that described water plant layer is planted is one or more in floral leaf reed, common reed, calamus, cattail,
Residence time of the digestive juice in water plant ecological treatment system is 1-2 days.
The present invention effectively reduces COD by adding a small amount of coagulant while cutting down livestock and poultry feces anaerobic digestion solution SS
Content, while improve livestock and poultry feces anaerobic digestion solution water plant eco-treatment technology being born to entering water organic pollution load
Power, it is determined that the optimum organization of economic and practical matrix and water plant, technical economic feasibility is big, is to ensure that technological applicability
Difficult point.Disappeared as livestock and poultry feces anaerobism using the processing unit that agriculture and forestry organic waste material is main filtrate by being combined with coagulating sedimentation
Change liquid strenuous primary treatment means, with operating cost is low, the treatment of wastes with processes of wastes against one another the characteristics of.Optimized with economic and practical matrix and water plant
The eco-treatment technology of combination as main body, both towards the safe reuse of livestock and poultry feces anaerobic digestion solution, and towards livestock and poultry feces
The qualified discharge of anaerobic digestion solution.
Claims (5)
1. in a kind of livestock and poultry cultivation anaerobic digestion solution processing method, including coagulating sedimentation pretreatment, filtering pretreatment and it is aquatic
Plant ecological process step, it is characterised in that
Described coagulating sedimentation pre-treatment step is：Anaerobic digestion solution is imported into stillpot by liquid reserve tank through digestive juice entrance
In, described stillpot is enclosed construction, with concrete cell body and seal closure, heating arrangements is provided with described cell body,
Described heating arrangements use electrical heating or gas heating；There is digestive juice entrance and exit on cell body, be provided with seal closure
Machine mixer, ultrasonic vibration installation and coagulant add mouth；
Heating arrangements are started, the temperature of anaerobic digestion solution is heated to 35 DEG C -45 DEG C, be subsequently added 10% watery hydrochloric acid and 15%
Dilute sulfuric acid mixed solution, by the regulation of the pH values of anaerobic digestion solution to 5.8-6.2, start machine mixer, first with 250r/
The rotating speed high-speed stirred 10min of min, while coagulant is added, after alumen ustum occurs in digestive juice surface, with the rotating speed of 120r/min
Speed stirring 10-15min, then with the rotating speed low rate mixing 10min of 35r/min, closes mixer, quiescent setting 10min；
Described coagulant component includes inorganic coagulant component and organic coagulants component, and specific proportioning is calculated as by weight：
Bodied ferric sulfate 2-4 parts, seven iron chloride hexahydrate 1-2 parts, polysilicate aluminum ferric chloride 8-10 parts, aluminum sulfate 3-5 parts, polyacrylamide
Amine 0.5-0.8 parts, wooden sodium sulfonate 1-1.2 parts, Calcium Disodium Versenate 0.5-0.8 parts, alum 0-0.5 parts, shell gather
Sugared 0.1-0.3 parts, addition is 2-3kg coagulant/ton digestive juice；
Described filtering pre-treatment step is：The digestive juice that will be pre-processed by coagulating sedimentation is exported by digestive juice and derived, and is entered
Filtering adsorpting device is processed, and is first directed to regulating tank, while import adsorption filtration post through booster pump to carry out filtering pre- place
Reason, described adsorption filtration post includes primary adsorption Filter column and secondary absorption Filter column, in described primary adsorption Filter column
There is adsorption stuffing, described adsorption stuffing is activated carbon, attapulgite, zeolite, and specific quality proportioning is activated carbon：Concave convex rod
Soil：Zeolite=(8-10)：(3-5)：(2-3), described adsorption stuffing particle diameter is 100-2000 microns, described secondary absorption mistake
There is biological adsorption agent in filter post；Described water plant Ecological Disposal step is：Enter by filtering pretreated digestive juice
Water plant ecological treatment system carries out water plant Ecological Disposal, and described water plant ecological treatment system is deposited including sewage
Storage container, water distribution system, collecting system and water sample collection device, initially enter sewage and deposit by the pretreated digestive juice of filtering
Storage container, collecting system is entered after through intake pump, and described collecting system includes boulder bed from bottom to top, packing layer and aquatic
Layer of plants, described boulder bed thickness is 5cm, is arranged between flowing line, packing layer lay successively from bottom to top washing layer of sand,
Zeolite layer, dephosphorization filler layer, washing layer of sand, packing layer the superiors laying water distributor line form water distribution system, and digestive juice is aquatic
Residence time in plant ecological processing system is 1-2 days.
2. processing method as claimed in claim 1, it is characterised in that described biological adsorption agent be edible mushroom, Bacillus acidi lactici/
The mixed biologic adsorbent of nitric acid bacillus.
3. processing method as claimed in claim 1, it is characterised in that described water plant ecological treatment system is 10m long
The container of 4m 10m high wide, has 8.
4. processing method as claimed in claim 1, it is characterised in that the water plant that described water plant layer is planted is
One or more in floral leaf reed, common reed, calamus, cattail.
5. processing method as claimed in claim 1, it is characterised in that in coagulating sedimentation pre-treatment step, using mechanical agitation
The mode of coupling ultrasonic ripple vibration is stirred to digestive juice.
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| CN105540693A (en) * | 2016-01-07 | 2016-05-04 | 苏州法斯特信息科技有限公司 | Composite BOD removing material and preparing method thereof |
| CN105776611B (en) * | 2016-04-12 | 2018-07-27 | 中国农业科学院农业资源与农业区划研究所 | It is not digested object and organic fertilizer base fluid preparation method in removal anaerobic digestion solution |
| CN105948398A (en) * | 2016-06-21 | 2016-09-21 | 福建禹环境科技有限公司 | Comprehensive treatment method for livestock and poultry breeding wastewater |
| CN106861612A (en) * | 2017-04-27 | 2017-06-20 | 安徽省农业科学院棉花研究所 | Attapulgite modified preparation method and its application in the treatment for cow manure of pig farm |
| CN108293869A (en) * | 2018-04-16 | 2018-07-20 | 北京农业智能装备技术研究中心 | A kind of nutrient solution filter device and method based on organic mass cultivation |
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| JP2002086156A (en) * | 2000-09-14 | 2002-03-26 | Sumitomo Heavy Ind Ltd | Waste water treating device |
| JP2005238152A (en) * | 2004-02-27 | 2005-09-08 | Kurita Water Ind Ltd | Organic material-containing water treatment method |
| JP2006026478A (en) * | 2004-07-13 | 2006-02-02 | Ik Shoji Kk | Decoloring method for livestock treatment water |
| CN101643290A (en) * | 2008-08-07 | 2010-02-10 | 中冶赛迪工程技术股份有限公司 | Sewage treatment method |
| CN101955298B (en) * | 2010-08-25 | 2013-04-17 | 东北农业大学 | Treatment method of anaerobic digested liquid for livestock and poultry breeding pollutants |
| CN202430089U (en) * | 2011-12-15 | 2012-09-12 | 福建省莆田市优利可农牧发展有限公司 | Sustainable processing system for waste water for raising pig |
| CN204454832U (en) * | 2015-01-30 | 2015-07-08 | 广东深泰环保科技有限公司 | Cultivating wastewater purification reclaiming system |
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