CN107200430A - A kind of processing method for biogas slurry of raising pigs - Google Patents
A kind of processing method for biogas slurry of raising pigs Download PDFInfo
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- CN107200430A CN107200430A CN201710337116.8A CN201710337116A CN107200430A CN 107200430 A CN107200430 A CN 107200430A CN 201710337116 A CN201710337116 A CN 201710337116A CN 107200430 A CN107200430 A CN 107200430A
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- raising pigs
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- 239000002002 slurry Substances 0.000 title claims abstract description 67
- 241000282887 Suidae Species 0.000 title claims abstract description 23
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 57
- 239000002689 soil Substances 0.000 claims abstract description 28
- 240000003826 Eichhornia crassipes Species 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 23
- 239000000706 filtrate Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 235000019738 Limestone Nutrition 0.000 claims abstract description 9
- 239000006028 limestone Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 241000209140 Triticum Species 0.000 claims description 10
- 235000021307 Triticum Nutrition 0.000 claims description 10
- 238000002513 implantation Methods 0.000 claims description 10
- 235000012054 meals Nutrition 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 239000004113 Sepiolite Substances 0.000 claims description 9
- 229910052624 sepiolite Inorganic materials 0.000 claims description 9
- 235000019355 sepiolite Nutrition 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 8
- 206010013786 Dry skin Diseases 0.000 claims description 6
- 244000068988 Glycine max Species 0.000 claims description 6
- 235000010469 Glycine max Nutrition 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- 230000000249 desinfective effect Effects 0.000 claims description 6
- 239000003415 peat Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 26
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 14
- 239000011574 phosphorus Substances 0.000 abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 241000196324 Embryophyta Species 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 1
- 238000005273 aeration Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000003446 ligand Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
Abstract
The invention discloses a kind of processing method for biogas slurry of raising pigs, belong to pig biogas slurry treatment technical field.Pig biogas slurry is filtered to obtain filtered fluid by the present invention, stirred after limestone powder mixing, then with AEO, through standing, filtering to get filtrate, with being stood after the native mixed aeration of self-control processing, standing terminates, and is implanted into Eichhornia crassipes, plants and is removed after certain moon number, residue is filtered into obtain filter residue and filtered fluid again, filter residue natural drying is obtained and discharged after soil enrichment material, filtered fluid sterilizing, you can complete the processing to biogas slurry of raising pigs.The beneficial effects of the invention are as follows：Processing method of the present invention is simple, and operating cost is low, operation controllability is strong, has preferable removal effect to the nitrogen in biogas slurry, phosphorus.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of processing method of pig biogas slurry.
Background technology
With expanding economy, people's living standard is improved constantly, and the especially pig industry of China's animal husbandry in recent years is obtained
Develop rapidly, environment and health are caused sternly while solving animal products supply and driving rural economic development
Ghost image rings.If pig biogas slurry is not dealt carefully with, nitrogen therein, phosphorus and organic matter etc. can cause such as water eutrophication
The environmental problems such as change, underground water pollution.Pig biogas slurry is mainly handled by way of anaerobic fermentation, at anaerobism
Contain a large amount of hardly degraded organic substances in biogas slurry after reason, and its nitrogen and phosphorus content is high, carbon-nitrogen ratio is relatively low, therefore when using catalytic oxidation
During these traditional method of wastewater treatment such as method, SBR methods, oxidation ditch process, treatment effect is not ideal, and has operation unstable
Fixed, operating cost is higher, while the also COD containing higher concentration in biogas slurry（500~2500mg/L）, total phosphorus etc.（5~30mg/
L）Deng polluter, these polluters will influence agricultural development and the life of environmental quality and people.Membrane bioreactor
（MBR）Floor space is small, high treating effect, stable, and microorganism can be retained, so that ensure the security of water outlet,
And also there is preferable degradation effect to hardly degraded organic substance, but cause absorption contact scar using rear easy blocking fenestra.
The processing method for biogas slurry of raising pigs also has following several, such as use artificial swamp method, A/O-MBR methods, bird at present
The tupes such as coprolite crystallisation.But these methods are because operating cost is too high and operates the features such as controllability is poor at present,
It is difficult to promote in raiser, and these methods are poor for the nitrogen in biogas slurry, phosphorus ligands effect.Therefore, for new pig natural pond
The research of liquid treatment technology is necessary.
How a kind of pig biogas slurry treatment side that operates controllability good, to nitrogen in biogas slurry, phosphorus ligands effect good is realized
Method is technical problem urgently to be resolved hurrily in the industry.
The content of the invention
The technical problems to be solved by the invention：It is poor for tradition pig biogas slurry treatment method operation controllability, it is difficult to
Raiser promote, and to the nitrogen in biogas slurry, phosphorus ligands effect is poor the drawbacks of there is provided it is a kind of raise pigs biogas slurry processing side
Method.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of processing method for biogas slurry of raising pigs, it is characterised in that specifically process step is：
（1）In mass ratio 2:1, take meal wheat stone and sepiolite to be put into calcining furnace, design temperature is 1300~1400 DEG C, calcining 1
~3h, collects calcined material, and is put into pulverizer and is crushed, and crushed material is crossed into 100 mesh sieves, collects the particle that sieves；
（2）Pond Silt is taken to carry out natural drying, it is 50~55% to dry to water content, collects the Pond Silt after drying, presses
Parts by weight meter, takes the Pond Silt after 70~90 parts of dryings, 35~40 portions of above-mentioned sieving particles, 30~32 portions of soybean respectively
Root, 18~22 parts of sodium humates and 10~13 parts of peat are put into mixer, and 20~30min is stirred with 200r/min, and collection is stirred
Mix mixture, you can soil must be handled, it is standby；
（3）Take pig biogas slurry and limestone powder to be put into container, and container is heated, be heated to 60~70 DEG C, stirring
After 30~50min, 45~50 DEG C are cooled to, then AEO is added into container, continues to stir 5~10min, it is quiet
Put, the mixture in container is filtered, collect filtrate；
（4）Standby processing soil and filtrate are put into processing pond, stirred, control process pond internal temperature is 20~25 DEG C,
Air is passed through from processing pond bottom, ventilation stops ventilation after 2~3 days, stands 4~6 days；
（5）Eichhornia crassipes seed is implanted into processing pond, implantation amount is at 12~15 Eichhornia crassipes seeds of every square metre of implantation, control
It is 20~23 DEG C to manage the temperature in pond, is planted 3~5 months, the Eichhornia crassipes in removal processing；
（6）After Eichhornia crassipes removal, the residue in processing pond is filtered, filtered fluid and filter residue is collected, filter residue is natural
It is 20~25% to dry to water content, collects and dries thing, obtains soil enrichment material, then by filtered fluid by ultraviolet radiation for sterilizing and disinfecting,
Discharged, you can complete the processing to biogas slurry of raising pigs.
The step（1）The mass ratio of middle pig biogas slurry and limestone powder is 4:1~6:1.
The step（1）The addition of middle AEO is the 7~9% of pig biogas slurry quality.
The step（2）Native and filtrate the mass ratio of middle processing is 1:3~1:5.
The step（2）In be passed through air throughput be 0.8~1.3m3/h。
The present invention is compared with other method, and advantageous effects are：
（1）The present invention is adsorbed using the sepiolite of water imbibition to pig biogas slurry, by the bactericidal properties and adsorptivity of meal wheat stone,
The absorption of the material such as sterilization processing and N P and K is carried out to pig biogas slurry, while using the microorganism in Pond Silt to sepiolite
And meal wheat stone carries out bio-modification, change internal structure, the enzyme material produced using sepiolite and meal wheat stone absorption microorganism,
Using the high bioactivity of meal wheat stone, the activity of enzyme is improved, and then increase the treatment effeciency to biogas slurry of raising pigs；
（2）The present invention makes full use of gained filter residue after biogas slurry treatment that soil enrichment material is made, and effectively realizes the recycling of resource；
（3）Operation controllability of the present invention is strong, good to pig biogas slurry treatment effect, has preferable removal to the nitrogen in biogas slurry, phosphorus
Effect.
Embodiment
Handle the preparation of soil：In mass ratio 2:1, take meal wheat stone and sepiolite to be put into calcining furnace, design temperature is 1300
~1400 DEG C, 1~3h is calcined, calcined material is collected, and is put into pulverizer and is crushed, crushed material is crossed into 100 mesh sieves, collected
Sieve particle；Pond Silt is taken to carry out natural drying, it is 50~55% to dry to water content, collects the Pond Silt after drying, presses
Parts by weight meter, takes the Pond Silt after 70~90 parts of dryings, 35~40 parts of sieving particles, 30~32 parts of Soybean Roots, 18 respectively
~22 parts of sodium humates and 10~13 parts of peat are put into mixer, and 20~30min is stirred with 200r/min, collect stirring mixing
Thing, you can soil must be handled.
The processing for biogas slurry of raising pigs：In mass ratio 4:1~6:1, take pig biogas slurry and 150 mesh limestone powders to be put into container
In, and container is heated, be heated to 60~70 DEG C, 30~50min is stirred with 150r/min, be cooled to 45~50 DEG C, then
The AEO of pig biogas slurry quality 7~9% is added into container, continues to stir after 5~10min, standing 3~
5h, is then filtered to the mixture in container, collects filtrate；In mass ratio 1:3~1:5, take processing soil and filtrate to be put into
In processing pond, stir, control process pond internal temperature is 20~25 DEG C, air, control ventilation are passed through from processing pond bottom
Measure as 0.8~1.3m3/ h, ventilation stops ventilation after 2~3 days, stands 4~6 days；Eichhornia crassipes seed is implanted into processing pond, is planted
It is 20~23 DEG C to enter amount for every square metre of temperature being implanted into 12~15 Eichhornia crassipes seeds, control process pond, plants 3~5
Month, the Eichhornia crassipes in removal processing；Eichhornia crassipes removal after, the residue in processing pond is filtered, collect filtered fluid with
Filter residue, is 20~25% by filter residue natural drying to water content, collects and dry thing, obtain soil enrichment material, then filtered fluid is passed through
Ultraviolet radiation for sterilizing and disinfecting, is discharged, you can complete the processing to biogas slurry of raising pigs.
Example 1
Handle the preparation of soil：In mass ratio 2:1, take meal wheat stone and sepiolite to be put into calcining furnace, design temperature is 1300 DEG C, is forged
1h is burnt, calcined material is collected, and is put into pulverizer and is crushed, crushed material is crossed into 100 mesh sieves, the particle that sieves is collected；Take pond
Mud carries out natural drying, and it is 50% to dry to water content, collects the Pond Silt after drying, counts, take respectively by weight
Pond Silt, 35 parts of sieving particles, 30 parts of Soybean Roots, 18 parts of sodium humates and 10 parts of peat after 70 parts of dryings are put into mixer
In, 20min is stirred with 200r/min, stirring mixture is collected, you can soil must be handled.
The processing for biogas slurry of raising pigs：In mass ratio 4:1, take pig biogas slurry and 150 mesh limestone powders to be put into container, and it is right
Container is heated, and is heated to 60 DEG C, and 30min is stirred with 150r/min, is cooled to 45 DEG C, then the addition pig biogas slurry into container
The AEO of quality 7%, continues to stir after 5min, stands 3h, then the mixture in container is filtered,
Collect filtrate；In mass ratio 1:3, take processing soil and filtrate to be put into processing pond, stir, control process pond internal temperature is
20 DEG C, air is passed through from processing pond bottom, it is 0.8m to control throughput3/ h, ventilation stops ventilation after 2 days, stands 4 days；To place
Reason pond is implanted into Eichhornia crassipes seed, and implantation amount is that the temperature in 12 Eichhornia crassipes seeds of every square metre of implantation, control process pond is
20 DEG C, plant 3 months, the Eichhornia crassipes in removal processing；After Eichhornia crassipes removal, the residue in processing pond is filtered,
Filtered fluid and filter residue are collected, is 20% by filter residue natural drying to water content, collects and dry thing, soil enrichment material is obtained, then incited somebody to action
Filtrate is discharged by ultraviolet radiation for sterilizing and disinfecting, you can complete the processing to biogas slurry of raising pigs.
Soil enrichment material is made in gained filter residue after biogas slurry treatment in this example, and the nitrogen content of fertilizer is 4.9%, and phosphorus content is
4.9%, potassium content 3.7%.
Table one：
| Pig biogas slurry | COD（mg/L） | Ammonia nitrogen（mg/L） | Total phosphorus（mg/L） | Total nitrogen（mg/L） |
| Before processing pig biogas slurry water quality | 350 | 420 | 60 | 460 |
| Pig biogas slurry water quality after processing | 12.3 | 0.121 | 0.21 | 0.69 |
Example 2
Handle the preparation of soil：In mass ratio 2:1, take meal wheat stone and sepiolite to be put into calcining furnace, design temperature is 1350 DEG C, is forged
2h is burnt, calcined material is collected, and is put into pulverizer and is crushed, crushed material is crossed into 100 mesh sieves, the particle that sieves is collected；Take pond
Mud carries out natural drying, and it is 53% to dry to water content, collects the Pond Silt after drying, counts, take respectively by weight
Pond Silt, 38 parts of sieving particles, 31 parts of Soybean Roots, 20 parts of sodium humates and 11 parts of peat after 80 parts of dryings are put into mixer
In, 25min is stirred with 200r/min, stirring mixture is collected, you can soil must be handled.
The processing for biogas slurry of raising pigs：In mass ratio 5:1, take pig biogas slurry and 150 mesh limestone powders to be put into container, and it is right
Container is heated, and is heated to 65 DEG C, and 40min is stirred with 150r/min, is cooled to 48 DEG C, then the addition pig biogas slurry into container
The AEO of quality 8%, continues to stir after 8min, stands 4h, then the mixture in container is filtered,
Collect filtrate；In mass ratio 1:4, take processing soil and filtrate to be put into processing pond, stir, control process pond internal temperature is
23 DEG C, air is passed through from processing pond bottom, it is 1.1m to control throughput3/ h, ventilation stops ventilation after 3 days, stands 5 days；To place
Reason pond is implanted into Eichhornia crassipes seed, and implantation amount is that the temperature in 13 Eichhornia crassipes seeds of every square metre of implantation, control process pond is
21 DEG C, plant 4 months, the Eichhornia crassipes in removal processing；After Eichhornia crassipes removal, the residue in processing pond is filtered,
Filtered fluid and filter residue are collected, is 23% by filter residue natural drying to water content, collects and dry thing, soil enrichment material is obtained, then incited somebody to action
Filtrate is discharged by ultraviolet radiation for sterilizing and disinfecting, you can complete the processing to biogas slurry of raising pigs.
Soil enrichment material is made in gained filter residue after biogas slurry treatment in this example, and the nitrogen content of fertilizer is 5.1%, and phosphorus content is
5.2%, potassium content 3.9%.
Table two：
| Pig biogas slurry | COD（mg/L） | Ammonia nitrogen（mg/L） | Total phosphorus（mg/L） | Total nitrogen（mg/L） |
| Before processing pig biogas slurry water quality | 750 | 850 | 80 | 880 |
| Pig biogas slurry water quality after processing | 11.0 | 0.086 | 0.18 | 0.58 |
Example 3
Handle the preparation of soil：In mass ratio 2:1, take meal wheat stone and sepiolite to be put into calcining furnace, design temperature is 1400 DEG C, is forged
3h is burnt, calcined material is collected, and is put into pulverizer and is crushed, crushed material is crossed into 100 mesh sieves, the particle that sieves is collected；Take pond
Mud carries out natural drying, and it is 55% to dry to water content, collects the Pond Silt after drying, counts, take respectively by weight
Pond Silt, 40 parts of sieving particles, 32 parts of Soybean Roots, 22 parts of sodium humates and 13 parts of peat after 90 parts of dryings are put into mixer
In, 30min is stirred with 200r/min, stirring mixture is collected, you can soil must be handled.
The processing for biogas slurry of raising pigs：In mass ratio 6:1, take pig biogas slurry and 150 mesh limestone powders to be put into container, and it is right
Container is heated, and is heated to 70 DEG C, and 50min is stirred with 150r/min, is cooled to 50 DEG C, then the addition pig biogas slurry into container
The AEO of quality 9%, continues to stir after 10min, stands 5h, then the mixture in container was carried out
Filter, collects filtrate；In mass ratio 1:5, take processing soil and filtrate to be put into processing pond, stir, temperature inside control process pond
Spend for 25 DEG C, air is passed through from processing pond bottom, it is 1.3m to control throughput3/ h, ventilation stops ventilation after 3 days, stands 6 days；
Eichhornia crassipes seed is implanted into processing pond, implantation amount is the temperature in 15 Eichhornia crassipes seeds of every square metre of implantation, control process pond
Spend for 23 DEG C, plant 5 months, the Eichhornia crassipes in removal processing；After Eichhornia crassipes removal, the residue in processing pond was carried out
Filter, collects filtered fluid and filter residue, is 25% by filter residue natural drying to water content, collects and dry thing, obtains soil enrichment material, then will
Filtered fluid is discharged by ultraviolet radiation for sterilizing and disinfecting, you can complete the processing to biogas slurry of raising pigs.
Soil enrichment material is made in gained filter residue after biogas slurry treatment in this example, and the nitrogen content of fertilizer is 5.0%, and phosphorus content is
5.1%, potassium content 3.8%.
Table three：
| Pig biogas slurry | COD（mg/L） | Ammonia nitrogen（mg/L） | Total phosphorus（mg/L） | Total nitrogen（mg/L） |
| Before processing pig biogas slurry water quality | 1200 | 1100 | 95 | 1180 |
| Pig biogas slurry water quality after processing | 13.6 | 0.156 | 0.24 | 0.81 |
Above-described embodiment is not limited for the present invention preferably embodiment, but embodiments of the present invention by above-described embodiment
System, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (5)
1. a kind of processing method for biogas slurry of raising pigs, it is characterised in that specifically process step is：
（1）In mass ratio 2:1, take meal wheat stone and sepiolite to be put into calcining furnace, design temperature is 1300~1400 DEG C, calcining 1
~3h, collects calcined material, and is put into pulverizer and is crushed, and crushed material is crossed into 100 mesh sieves, collects the particle that sieves；
（2）Pond Silt is taken to carry out natural drying, it is 50~55% to dry to water content, collects the Pond Silt after drying, presses
Parts by weight meter, takes the Pond Silt after 70~90 parts of dryings, 35~40 portions of above-mentioned sieving particles, 30~32 portions of soybean respectively
Root, 18~22 parts of sodium humates and 10~13 parts of peat are put into mixer, and 20~30min is stirred with 200r/min, and collection is stirred
Mix mixture, you can soil must be handled, it is standby；
（3）Take pig biogas slurry and limestone powder to be put into container, and container is heated, be heated to 60~70 DEG C, stirring
After 30~50min, 45~50 DEG C are cooled to, then AEO is added into container, continues to stir 5~10min, it is quiet
Put, the mixture in container is filtered, collect filtrate；
（4）Standby processing soil and filtrate are put into processing pond, stirred, control process pond internal temperature is 20~25 DEG C,
Air is passed through from processing pond bottom, ventilation stops ventilation after 2~3 days, stands 4~6 days；
（5）Eichhornia crassipes seed is implanted into processing pond, implantation amount is at 12~15 Eichhornia crassipes seeds of every square metre of implantation, control
It is 20~23 DEG C to manage the temperature in pond, is planted 3~5 months, the Eichhornia crassipes in removal processing；
（6）After Eichhornia crassipes removal, the residue in processing pond is filtered, filtered fluid and filter residue is collected, filter residue is natural
It is 20~25% to dry to water content, collects and dries thing, obtains soil enrichment material, then by filtered fluid by ultraviolet radiation for sterilizing and disinfecting,
Discharged, you can complete the processing to biogas slurry of raising pigs.
2. a kind of processing method of biogas slurry of raising pigs according to claim 1, it is characterised in that：The step（1）Middle pig
The mass ratio of biogas slurry and limestone powder is 4:1~6:1.
3. a kind of processing method of biogas slurry of raising pigs according to claim 1, it is characterised in that：The step（1）Middle fat
The addition of alcohol APEO is the 7~9% of pig biogas slurry quality.
4. a kind of processing method of biogas slurry of raising pigs according to claim 1, it is characterised in that：The step（2）Middle processing
Soil and the mass ratio of filtrate are 1:3~1:5.
5. a kind of processing method of biogas slurry of raising pigs according to claim 1, it is characterised in that：The step（2）In be passed through
The throughput of air is 0.8~1.3m3/h。
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| US4021966A (en) * | 1975-04-15 | 1977-05-10 | G.A. Serlachius Oy | Plantcup element |
| CN105084440A (en) * | 2015-09-11 | 2015-11-25 | 江苏振宇环保科技有限公司 | Preparation method of biological particles for treating chrome-containing wastewater |
| CN106498534A (en) * | 2016-10-20 | 2017-03-15 | 常州市鼎日环保科技有限公司 | A kind of preparation method of antibacterial nylon fiber |
| CN106544034A (en) * | 2016-10-14 | 2017-03-29 | 吴迪 | A kind of preparation method of soil conditioner |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021966A (en) * | 1975-04-15 | 1977-05-10 | G.A. Serlachius Oy | Plantcup element |
| CN105084440A (en) * | 2015-09-11 | 2015-11-25 | 江苏振宇环保科技有限公司 | Preparation method of biological particles for treating chrome-containing wastewater |
| CN106544034A (en) * | 2016-10-14 | 2017-03-29 | 吴迪 | A kind of preparation method of soil conditioner |
| CN106498534A (en) * | 2016-10-20 | 2017-03-15 | 常州市鼎日环保科技有限公司 | A kind of preparation method of antibacterial nylon fiber |
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