CN211999055U - System for treating biogas slurry nearby by planting pennisetum hydridum in small and medium-sized pig farm - Google Patents
System for treating biogas slurry nearby by planting pennisetum hydridum in small and medium-sized pig farm Download PDFInfo
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- CN211999055U CN211999055U CN202020566486.6U CN202020566486U CN211999055U CN 211999055 U CN211999055 U CN 211999055U CN 202020566486 U CN202020566486 U CN 202020566486U CN 211999055 U CN211999055 U CN 211999055U
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Abstract
The utility model provides a system for middle-size and small-size pig farm is through planting pennisetum hydridum nearby processing natural pond liquid, a serial communication port, including pig farm biogas fermentation system, a plurality of natural pond liquid apotheca and pennisetum hydridum kind plant base ground, pig farm biogas fermentation system through first pipe-line system with a plurality of natural pond liquid storage ponds intercommunication, natural pond liquid storage pond is connected to through second pipe-line system the row's of pennisetum hydridum kind plant base enters the mouth, pennisetum hydridum kind plant base's discharge port department is equipped with a collecting pit, the one end that is close to the natural pond liquid storage pond on first pipe-line system and the second pipe-line system is. The scheme can be used for treating biogas slurry in small and medium-sized pig farms, does not need too many farmlands or soils for matching, has strong adaptability and can be popularized in a large range; the investment is less, the operation is simple, the maintenance cost is low, the pennisetum hydridum is planted once, and the biogas slurry can be treated for 6 to 8 years. The surrounding environment is fully improved, a new economic growth point is developed, and the sustainable development of small and medium-sized pig farms is realized.
Description
Technical Field
The utility model relates to a natural pond liquid treatment field, in particular to system for nearby processing natural pond liquid through planting pennisetum hydridum in middle and small-size pig farm.
Background
The pennisetum hydridum is perennial gramineous forage grass which is bred by crossing African pennisetum and grassiness, has more and wide leaves, tall and big plants, high mu yield, large demand on N, high protein content, developed root system, strong stress resistance and the like. The method is suitable for the growth of pennisetum hydridum in many places in China, the annual sunshine time is 1300-1800 hours, the annual average temperature is 15-18 ℃, the frost-free period is as long as 260-310 days, and the annual average precipitation is 1200-1700 mm.
The biogas slurry discharge reaching the standard not only seriously stops the pig production in the pig farm all the time, but also is a close concern object of the environmental protection department. At present, the research on the standard-reaching discharge of the biogas slurry in the pig farm is mainly in the aspect of source purification such as matched facility equipment in the pig farm, the research on the aspect of purification and utilization of crops after discharge is less, even a small amount of research is also mainly based on experimental research in south China, and the research is more less in the aspect of production, application and popularization.
The facilities and equipment of the small and medium-sized pig farm fall behind relatively, most of excrement of the pig farm mainly uses resource biogas anaerobic fermentation, biogas after anaerobic fermentation provides energy, and biogas slurry and biogas residues provide fertilizers. The biogas amount is large, the biogas is difficult to treat, the direct discharge is difficult to reach the environmental protection requirement standard, and the surrounding soil and farmland are eutrophicated to cause pollution. The biogas slurry treatment and the discharge after reaching the standard can bring huge economic pressure for pollution treatment to small and medium-sized pig farms.
The periphery of the small and medium-sized pig farm is generally provided with a part of farmland or soil for absorbing excrement or biogas slurry, and a wide space is provided for planting pennisetum hydridum. Pennisetum hydridum has strong N absorption capacity and strong pollution control property. The pennisetum hydridum planted nearby in a pig farm can improve the surrounding environment of the pig farm to meet the requirement of environmental protection, and N absorbed by pennisetum hydridum can be converted into protein, so that the pennisetum hydridum can be used for raising cattle, sheep, fish, geese and rabbits, and can be used for feeding pigs in a pulping manner. Planting and breeding are combined, and recycling is also a requirement for sustainable development of novel agriculture.
Biogas slurry in small and medium-sized pig farms is directly discharged into peripheral farmlands or soil, pollutes water sources and peripheral environments, and causes yield reduction and no harvest of peripheral grain crops or economic crops. Or a large amount of farmland and soil area are needed for matching, the land is few and many, and the method is difficult to be realized in the actual production. The small and medium-sized pig farms are small in scale, mainly home-bred scattered households, and are relatively aversive and dispersive in geographic position. The source is treated and the discharge reaches the standard, the facility equipment is expensive, the operation and the nursing of professional personnel are needed, the treatment cost is high, the biogas slurry is not effectively utilized, and the resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a system for middle-size and small-size pig farm is through planting pennisetum hydridum and handle natural pond liquid nearby, its purpose is in order to utilize the peripheral limited farmland or soil in middle-size and small-size pig farm, handles the natural pond liquid of emission to the high-quality pennisetum hydridum of results.
In order to achieve the above object, the embodiment of the utility model provides a system for middle-size and small-size pig farm is through planting huangzhao handled natural pond liquid nearby, including pig farm biogas fermentation system, a plurality of natural pond liquid holding ponds and huangzhao kind plant base ground, pig farm biogas fermentation system through first pipe-line system with a plurality of natural pond liquid holding ponds intercommunication, natural pond liquid holding pond is connected to through second pipe-line system the row's of huangzhao kind plant base enters the mouth, the discharge port department of huangzhao kind plant base is equipped with a collecting pit, the one end that is close to natural pond liquid holding pond on first pipe-line system and the second pipe-line system is equipped with the valve.
Preferably, a filter and a water meter are further arranged on the second pipeline system.
Preferably, the pipes of the first and second pipe systems are concealed pipes.
Preferably, the number of the biogas slurry storage tanks is 2-3.
Preferably, the collecting tank is provided with a water outlet.
Preferably, a circumferential ditch is formed around the pennisetum hydridum planting base; opening a vertical ditch every 5-10 meters; a transverse ditch is arranged every 15-20 meters, the width of the ditch is 50-70cm, and the depth of the ditch is 30-50 cm.
Preferably, 1600-2800 pennisetum hydridum plants are planted in the pennisetum hydridum planting base per mu, the row interval of each pennisetum hydridum is 40-60cm, and the vertical interval is 50-70 cm.
The above technical scheme of the utility model has following beneficial effect: the utility model can treat biogas slurry in small and medium-sized pig farms, does not need too much farmland or soil for matching, has strong adaptability and can be popularized in a large range; the investment is less, the operation is simple, the utilization time is long, and the maintenance cost is low. The pennisetum hydridum has strong disease and insect pest resistance, belongs to perennial pasture, is planted once, is well provided with winter anti-freezing measures, can treat biogas slurry for 6-8 years, and also harvests high-quality pasture while treating the biogas slurry, so that the surrounding environment can be fully improved, a new economic growth point is developed, and the sustainable development of small and medium-sized pig farms is realized.
Drawings
Fig. 1 is a schematic view of the present invention;
[ description of reference ]
1-a biogas fermentation system; 2-a first pipe system; 3-biogas slurry storage pool; 4-a second pipe system; 5-pennisetum hydridum planting base; 6-a discharge port; 7-an outlet; 8-a collection tank; 9-water outlet; 10-a valve; 11-a filter; 12-water meter.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the embodiment of the utility model provides a system of middle-size and small-size pig farm through planting huangzhao treated biogas liquid nearby, including pig farm biogas fermentation system 1, 2 ~ 3 natural pond liquid holding ponds 3 and huangzhao plant foundation ground 5, pig farm biogas fermentation system 1 is through the concealed pipe and the natural pond liquid holding pond 3 intercommunication of first pipe-line system 2, the one end that is close to the natural pond liquid holding pond on the first pipe-line system 2 is equipped with valve 10, natural pond liquid holding pond 3 is connected to the row's of huangzhao plant foundation 5 mouth 6 through the concealed pipe of second pipe-line system 4, the one end that is close to the natural pond liquid holding pond on the second pipe-line system 4 is equipped with valve 10 in proper order, filter 11 and water gauge 12. A collecting tank 8 is arranged at the outlet 7 of the pennisetum hydridum planting base 5, and the collecting tank 8 is provided with a water outlet 9.
The pennisetum hydridum can not be directly watered by the biogas slurry, and the pennisetum hydridum can be used as an organic fertilizer only after being stored in the biogas slurry storage tank 3 for 7 to 15 days. Pennisetum hydridum is in a dormant period in 12 months and 1-3 months in the second year, and cannot treat biogas slurry. Therefore, 2-3 biogas slurry storage tanks need to be built, the capacity of the biogas slurry storage tanks can completely store biogas slurry generated in 4 months, pennisetum hydridum cannot process too much biogas slurry in the growth and development period in 4-5 months, and therefore the volume of the biogas slurry storage tank 3 needs to be increased by 25-30%. The requirement on the geographical position of the biogas slurry storage tank 3 is relatively high, so that peripheral rainwater cannot enter the storage tank. The biogas slurry enters the biogas slurry storage tank 3 through the concealed pipe of the first pipeline system 2, and the biogas slurry in the biogas slurry storage tank 3 is stored for 7-15 days and then enters the pennisetum hydridum planting field 5 through the concealed pipe of the second pipeline system 4, the filter 11 and the water meter 12.
The ditches around the pennisetum hydridum planting field 5 are smooth without water accumulation, and the peripheral rainwater cannot enter the pennisetum hydridum planting field. The periphery of the pennisetum hydridum planting base 5 is provided with a surrounding ditch; opening a vertical ditch every 5-10 meters; a transverse ditch is arranged every 15-20 meters, the width of the ditch is 50-70cm, and the depth of the ditch is 30-50 cm. 1600 plus 2800 pennisetum hydridum plants are planted in 5 mu of pennisetum hydridum planting base, the row interval of each pennisetum hydridum is 40-60cm, and the vertical interval is 50-70 cm. After the pennisetum hydridum is planted for 7-10 days, pennisetum hydridum basically takes roots and grows new leaves, if a place with seedling lack and stump lack is found, seedlings are timely transplanted for replanting, and proper weed removal is carried out in the field.
Pennisetum hydridum likes high temperature, large water and large fertilizer, and can treat 62-95t biogas slurry per mu each year. And in the growth and development period of 4-6 months, 2-5t of biogas slurry is treated per mu per month, 6-10t of biogas slurry is treated per mu per month in 7 months, 20-25t of biogas slurry is treated per mu per month in 8 months, 15-20t of biogas slurry is treated per mu in 9 months, 10-15t of biogas slurry is treated per mu in 10 months, and 5-10t of biogas slurry is treated per mu in 11 months. When the biogas slurry is treated, the treatment is carried out for 1 to 5 times per month, the rainy weather is avoided, drip irrigation, irrigation and flood irrigation can be adopted, and the biogas slurry in flood irrigation can not exceed 40 percent of the depth of a ditch. The capacity of the collecting tank 8 of the water outlet 6 at the tail of the pennisetum hydridum planting field 5 is the biogas slurry amount generated by the piggery in 1-3 months, the collecting tank 8 needs to prevent peripheral rainwater from entering, only collects redundant rainwater of the pennisetum hydridum planting field 5, detects indexes such as N, P and the like, and adjusts the biogas slurry treatment amount of pennisetum hydridum according to the indexes.
40 sows are stored in a certain pig farm of the Hunan Yiyang, 1 male pig is stored in the farm, and 450 commercial pigs are stored in the farm for a long time, wherein 70-80 piglets are 1-10kg, 150 pigs are 11-40kg nursery pigs and 160 pigs are 160 pigs, 80-100 fattening pigs are 41-75kg, and 70-110 fattening pigs are 76-130 pigs. The feces and the sewage are subjected to dry-wet separation and rain and sewage diversion, the dry feces are collected, composted and fermented, the urine and the sewage enter the biogas fermentation system 1 for fermentation and then enter the two biogas slurry storage tanks 3 through the hidden pipes of the first pipeline system 2, the length of each biogas slurry storage tank 3 is 15m, the width of each biogas slurry storage tank is 10m, the depth of each biogas slurry storage tank is 1.5-2.0m, and the total volume of each biogas slurry storage tank is 450-plus-material-3The geographic position of the biogas slurry storage tank 3 is higher, and peripheral rainwater cannot enter the biogas slurry storage tank 3. The biogas slurry in the biogas slurry storage tank 3 is stored for 7 to 15 days and then enters the pennisetum hydridum planting field 5 through the concealed pipe, the filter 11 and the water meter 12 of the second pipeline system 4.
In hot weather, the live pigs drink more water, the times of fence washing are more, and the biogas slurry production amount is large. 3000kg of biogas slurry is produced in 1 day on average, 60-90t of biogas slurry is produced in 30 days, and 1080t of biogas slurry is produced in 1 year. The planting area of the pennisetum hydridum is 14 mu, ditches around the planting field are smooth, and peripheral rainwater cannot enter the pennisetum hydridum planting field. Opening a circumferential groove around the pennisetum hydridum planting field, opening a vertical groove at intervals of 6 meters, opening a transverse groove at intervals of 15 meters, and widening the groove: 50cm, trench depth: 40 cm. The pennisetum hydridum is planted in the beginning of 4 months, 2300 pennisetum hydridum plants are planted per mu, and the pennisetum hydridum is planted according to the interval of 50cm between each two plants and the interval of 60cm between each two plants.
Treating biogas slurry with pennisetum hydridum: avoiding rainy days, adopting a mode of combining irrigation and flood irrigation, wherein pennisetum hydridum is in the middle and last ten days of 4 monthsIn the development period, treating the biogas slurry for 1 time, wherein 2t of biogas slurry is treated per mu; treating biogas slurry for 1 time in month 5, wherein pennisetum hydridum is in a rapid growth period at the time, 3t of biogas slurry is treated per mu, ten days in 6 months, the pennisetum hydridum can be mowed after the height of the plant reaches 1m, the stubble height is 10-15cm for each time of mowing, 5t of biogas slurry is treated per mu when pennisetum hydridum is mowed for the first time, the treatment is carried out twice, 7 months, 10t of biogas slurry is treated per mu, 3 times of treatment, 8 months, the third time of mowing, 20t of biogas slurry is treated per mu, 4 times of treatment, 9 months, the fourth time of mowing, 16t of biogas slurry is treated per mu, four times of treatment, 10 months, the fifth time of mowing, 14t of biogas slurry is treated per mu, 3 times of treatment, 11 months of bottoms of the last time of the mowing, 10t of biogas slurry is treated per mu, two times of treatment, covering a mulching film in time, covering the mown pennisetum hydridum or weeds when the temperature, And (5) freezing to death. The total amount of biogas slurry treated by pennisetum hydridum per mu every year is 80t, and the yield per mu of pennisetum hydridum in the first year is about 25 t. The volume of the collecting tank 8 is 200-300m3And peripheral rainwater is prevented from entering, and only the redundant rainwater in the pennisetum hydridum planting field 5 is collected. Through detection, indexes such as N, P of water in the pool and the like all reach the standard of farmland irrigation water.
The biogas slurry treatment method for the small and medium-sized pig farms has the advantages that investment is small, too many farmlands or soils are not needed for matching, pennisetum hydridum is planted nearby by utilizing limited farmlands or soils around the small and medium-sized pig farms, and large water and large fertilizer are favored according to the characteristics of the pennisetum hydridum. The biogas slurry is treated, the surrounding environment is fully improved, meanwhile, high-quality pasture is obtained, a new economic growth point is developed, and the sustainable development of small and medium-sized pig farms is realized.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a system for middle-size and small-size pig farm is through planting pennisetum hydridum and handling natural pond nearby, a serial communication port, including pig farm biogas fermentation system, a plurality of natural pond liquid holding ponds and pennisetum hydridum kind base ground, pig farm biogas fermentation system through first pipe-line system with a plurality of natural pond liquid holding ponds intercommunication, natural pond liquid holding pond is connected to through second pipe-line system the row entrance of pennisetum hydridum kind base, the discharge port department of pennisetum hydridum kind base is equipped with a collecting pit, the one end that is close to the natural pond liquid holding pond on first pipe-line system and the second pipe-line system is equipped with the.
2. The system for nearby treatment of biogas slurry through pennisetum hydridum planting in a small and medium-sized pig farm according to claim 1, wherein the second pipeline system is further provided with a filter and a water meter.
3. The system for nearby treatment of biogas slurry through pennisetum hydridum planting in a small and medium-sized pig farm according to claim 2, wherein the pipelines of the first pipeline system and the second pipeline system are concealed pipes.
4. The system for nearby treatment of biogas slurry through pennisetum hydridum planting in a small and medium-sized pig farm according to claim 3, wherein the number of biogas slurry storage tanks is 2-3.
5. The system for nearby treatment of biogas slurry through pennisetum hydridum planting in small and medium-sized pig farms as claimed in claim 4, wherein the collection tank is provided with a water outlet.
6. The system for nearby biogas slurry treatment by pennisetum hydridum planting in small and medium-sized pig farms according to claim 5, wherein a gutter is opened around the pennisetum hydridum planting base; opening a vertical ditch every 5-10 meters; a transverse ditch is arranged every 15-20 meters, the width of the ditch is 50-70cm, and the depth of the ditch is 30-50 cm.
7. The system for nearby biogas slurry treatment by pennisetum hydridum planting in small and medium-sized pig farms as claimed in claim 6, wherein 1600-2800 pennisetum hydridum plants are planted in each acre of pennisetum hydridum planting base, the row interval of each pennisetum hydridum is 40-60cm, and the vertical interval is 50-70 cm.
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| CN202020566486.6U CN211999055U (en) | 2020-04-16 | 2020-04-16 | System for treating biogas slurry nearby by planting pennisetum hydridum in small and medium-sized pig farm |
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| CN202020566486.6U CN211999055U (en) | 2020-04-16 | 2020-04-16 | System for treating biogas slurry nearby by planting pennisetum hydridum in small and medium-sized pig farm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114731942A (en) * | 2022-04-28 | 2022-07-12 | 西南环保科技(成都)有限责任公司 | Device and method for dissolving biogas slurry by using WangMatongcao |
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2020
- 2020-04-16 CN CN202020566486.6U patent/CN211999055U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114731942A (en) * | 2022-04-28 | 2022-07-12 | 西南环保科技(成都)有限责任公司 | Device and method for dissolving biogas slurry by using WangMatongcao |
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Granted publication date: 20201124 Termination date: 20210416 |