CN210103667U - Pig farm solid-liquid separation and processing system - Google Patents
Pig farm solid-liquid separation and processing system Download PDFInfo
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- CN210103667U CN210103667U CN201822258705.XU CN201822258705U CN210103667U CN 210103667 U CN210103667 U CN 210103667U CN 201822258705 U CN201822258705 U CN 201822258705U CN 210103667 U CN210103667 U CN 210103667U
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Abstract
The utility model discloses a solid-liquid separation and treatment system for pig farms, which comprises a pretreatment unit, an anaerobic treatment unit, an aerobic treatment unit, a methane treatment unit, a catalytic treatment unit and a discharge unit; the pretreatment unit is connected with the anaerobic treatment unit, and solid-liquid separation and primary acidification treatment are carried out on solid and liquid discharge of a pig farm by the pretreatment unit; the anaerobic treatment unit is connected with the biogas treatment unit, and liquid discharge pretreated by the pretreatment unit is subjected to anaerobic treatment to generate biogas; the biogas treatment unit is connected with the aerobic treatment unit, the biogas treatment unit is used for carrying out water-gas separation and desulfurization treatment, and waste liquid is treated by aerobic treatment and catalysis treatment and reaches the discharge unit to be directly discharged. Pig farm solid-liquid separation and processing system, can wash excrement water and blowdown liquid with the efficient general farm fast and handle.
Description
Technical Field
The utility model belongs to the field of breed, specifically relate to pig farm solid-liquid separation and processing system.
Background
Malodorous gases such as methane, hydrogen sulfide and ammonia in the air of the pig farm pollute the air around and below the tuyere, and a large amount of discharged liquid metabolites, piggery washing wastewater, partially scattered pig feed and the like seriously pollute the wastewater of the pig farm. Research shows that the wastewater in the large-scale pig farm is 6-4000-20000 mg/L, BOD is 1500-6000 mg/L, ammonia nitrogen concentration is 450-1500 mg/L, and TP concentration is 50-330 mg/L, and the wastewater is high-nitrogen, high-phosphorus and high-concentration organic wastewater, and also contains a large amount of undissolved suspended particulate matters such as pig manure.
In current pig farm sewage or solid-liquid treatment system, although utilize technologies such as marsh gas fermentation, compost can consume some excrement and sewage, but because there is not systematic nature, the natural pond liquid of production, excrement sediment etc. still do not have the consumption, can not accomplish complete reasonable effectual utilization with excrement and sewage, the natural pond gas of production, natural pond liquid do not pass through further processing, harmful substance such as heavy metal that has, bacterium can cause secondary pollution when using, consequently develop a high efficiency, pollution-free pig farm solid-liquid separation and processing system, be the difficult problem that needs to solve at present urgently.
SUMMERY OF THE UTILITY MODEL
The technical problem is not solved, the utility model provides a pair of evaporate foster pig farm solid-liquid separation and processing system.
The utility model discloses a following technical scheme can realize.
The pig farm solid-liquid separation and treatment system comprises a pretreatment unit, an anaerobic treatment unit, an aerobic treatment unit, a methane treatment unit, a catalytic treatment unit and a discharge unit;
the pretreatment unit is connected with the anaerobic treatment unit, and solid-liquid separation and primary acidification treatment are carried out on solid and liquid discharge of a pig farm by the pretreatment unit;
the anaerobic treatment unit is connected with the biogas treatment unit, and liquid discharge pretreated by the pretreatment unit is subjected to anaerobic treatment to generate biogas;
the biogas treatment unit is connected with the aerobic treatment unit and is used for carrying out water-gas separation and desulfurization treatment;
the aerobic treatment unit is connected with the anaerobic treatment unit and the biogas treatment unit, and waste liquid generated by the anaerobic treatment unit and liquid separated by the biogas treatment unit are subjected to aerobic treatment;
the catalytic treatment unit is connected with the discharge unit and is used for carrying out catalytic oxidation on the waste liquid subjected to aerobic treatment;
and the discharge unit discharges qualified waste liquid.
The pretreatment unit comprises a grating groove, a sewage collection regulating tank, a solid-liquid separator, a primary sedimentation tank, a blending tank and a secondary sedimentation tank which are connected in sequence.
Wherein, the anaerobic treatment unit comprises an anaerobic tank, and the anaerobic tank is connected with a secondary sedimentation tank.
The aerobic treatment unit comprises an anoxic tank, an aerobic tank and a middle sedimentation tank, wherein the anoxic tank is connected with the anaerobic tank.
The biogas treatment unit comprises a constant pressure device, a gas-water separator, a desulfurization device, a drying device, a gas storage bag and a biogas fire-retardant purification and distribution device, wherein the constant pressure device is connected with the anaerobic tank.
The catalytic treatment unit comprises a catalytic tank, a coagulating sedimentation tank and a disinfection contact tank, wherein the catalytic tank is connected with the intermediate sedimentation tank.
Wherein the discharge unit comprises an oxidation pond and a sewage discharge port, and the oxidation pond is connected with the disinfection contact tank.
Wherein, the air storage bag is connected with a pressure relief device, and the gas-water separator is connected with an anoxic pond.
The utility model has the advantages that:
pig farm solid-liquid separation and processing system, can wash the excrement water and the blowdown liquid is handled with the efficient general farm fast, will wash excrement water and blowdown liquid and carry out the pretreatment back, carry out anaerobism, good oxygen, marsh gas, catalytic treatment back, can obtain green pollution-free marsh gas and reach the waste water of emission standard quality of water.
Drawings
FIG. 1 is a schematic view of a pig farm solid-liquid separation and treatment system of the present invention;
FIG. 2 is a schematic diagram of a solid-liquid separation and treatment system for a pig farm according to the present invention;
wherein: 1-a pretreatment unit, 2-an anaerobic treatment unit, 3-a catalytic treatment unit, 4-a discharge unit, 5-a methane treatment unit and 6-an aerobic treatment unit; 11-grid groove, 12-sewage collecting adjusting tank, 13-solid-liquid separator, 14-primary settling tank, 15-blending tank and 16-secondary settling tank; 21-anaerobic tank, 31-catalytic tank, 33-coagulating sedimentation tank, 33-disinfection contact tank, 41-oxidation pond and 42-sewage discharge port; 51-constant pressure device, 52-gas-water separator, 53-desulphurization device, 54-drying device, 55-pressure relief device, 56-air storage bag, 57-marsh gas fire-retardant purification and distribution device; 61-anoxic tank, 62-aerobic tank, 63-middle sedimentation tank.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1
The solid-liquid separation and treatment system for the pig farm shown in figure 1 comprises a pretreatment unit 1, an anaerobic treatment unit 2, an aerobic treatment unit 6, a biogas treatment unit 5, a catalytic treatment unit 3 and a discharge unit 4;
the pretreatment unit 1 is connected with the anaerobic treatment unit 2, and the pretreatment unit 1 is used for carrying out solid-liquid separation and primary acidification treatment on solid and liquid discharge of a pig farm;
the anaerobic treatment unit 2 is connected with the biogas treatment unit 5, and liquid discharge pretreated by the pretreatment unit 1 is subjected to anaerobic treatment to generate biogas;
the biogas treatment unit 5 is connected with the aerobic treatment unit 6, and the biogas treatment unit 5 is used for carrying out water-gas separation and desulfurization treatment;
the aerobic treatment unit 6 is connected with the anaerobic treatment unit 2 and the biogas treatment unit 5, and is used for carrying out aerobic treatment on the waste liquid generated by the anaerobic treatment unit and the liquid separated by the biogas treatment unit;
the catalytic treatment unit 3 is connected with the discharge unit 4, and the catalytic treatment unit 3 is used for carrying out catalytic oxidation on the waste liquid subjected to aerobic treatment;
the discharge unit 4 discharges the qualified waste liquid.
As shown in figure 2, the pretreatment unit 1 of the solid-liquid separation and treatment system for pig farms comprises a grid groove 11, a sewage collection regulating tank 12, a solid-liquid separator 13, a primary sedimentation tank 14, a blending tank 15 and a secondary sedimentation tank 16 which are connected in sequence.
The anaerobic treatment unit 2 comprises an anaerobic tank 21, and the anaerobic tank is connected with a secondary sedimentation tank.
The aerobic treatment unit 6 comprises an anoxic tank 61, an aerobic tank 62 and a middle sedimentation tank 63, and the anoxic tank is connected with the anaerobic tank.
The biogas treatment unit 5 comprises a constant pressure device 51, a gas-water separator 52, a desulphurization device 53, a drying device 54, an air storage bag 56 and a biogas fire-retardant purification distribution device 55, wherein the constant pressure device 52 is connected with the anaerobic tank 21.
The catalytic treatment unit 3 comprises a catalytic tank 31, a coagulating sedimentation tank 32 and a disinfecting contact tank 33, wherein the catalytic tank is connected with the intermediate sedimentation tank.
The discharge unit 4 comprises an oxidation pond 41, a sewage discharge port 42, the oxidation pond being connected to a disinfection contact tank.
The air storage bag 56 is connected with the pressure relief device 55, and the gas-water separator is connected with the anoxic pond.
A pretreatment unit: waste water generated by a farm is collected by a pipeline and then enters a grid groove, the waste water is intercepted by the grid groove, sundries such as leaves, weeds, pig hair, injectors, plastic bags and the like enter a sewage collection regulating reservoir and then are lifted to a solid-liquid separator by a sewage lifting pump to separate excrement residues, the excrement residues enter a composting field to be stored and treated, the waste water flows into a primary sedimentation tank to remove solid suspended matters, suspended particles such as the excrement residues which cannot be separated by the solid-liquid separator are separated, then the waste liquid enters a blending tank, is adjusted by an acidification blending tank and then is introduced into a secondary sedimentation tank to further remove the solid suspended matters.
The anaerobic treatment unit comprises a primary red mud plastic anaerobic tank and a secondary red mud plastic anaerobic tank, wherein the anaerobic tank adopts a combined process of an anaerobic baffle plate (ABR) and an Anaerobic Filter (AF).
The effluent of the secondary sedimentation tank is lifted by a sewage lifting pump to enter an anaerobic treatment unit, the anaerobic treatment unit can degrade macromolecular organic matters into micromolecular organic matters under the condition of no energy consumption, organic matters which are difficult to degrade are converted into degradable organic matters, the biodegradability of the wastewater is improved, meanwhile, the organic matters in the sewage are degraded through the action of methanogens, and methane is generated.
An aerobic treatment unit: receiving wastewater in an anaerobic tank and wastewater separated from a gas-water separator, installing a submersible mixer in the tank for mixing sludge and water, and carrying out anoxic (DO) treatment<0.5mg/L), the denitrifying bacteria convert nitrate nitrogen in the return nitrification liquid into nitrogen gas through biological denitrification to escape to the atmosphere, so as to realize denitrification and simultaneously supplement the alkalinity of the sewage in the denitrification process. The aerobic tank is internally provided with combined filler (the height of a filler layer is 3.0m), and the total volume of the filler is about 1588m3(ii) a Pool bottom installationThe microporous aerator plays roles of oxygen supply and stirring at the same time through blast aeration, ensures the activity of aerobic bacteria and the effect of mixing mud and water, and promotes organic matters in water to be fully degraded and removed; and converting ammonia nitrogen in the sewage into nitrate nitrogen through the nitrification of nitrifying bacteria; a middle sedimentation tank: 1 seat in total, specification: 5.7m is multiplied by 5.5m (the effective water depth is 4.9m), a conical sludge hopper is arranged at the bottom, and the effective volume of a settling zone is about 65m3And (3) casting a semi-underground type steel concrete structure in situ. The effluent of the aerobic treatment unit is subjected to mud-water separation, active sludge is refluxed to the water inlet end of the anoxic tank (the reflux ratio of the sludge is about 100 percent), and residual sludge is removed; the supernatant enters a subsequent treatment facility.
A catalytic treatment unit: and the effluent of the intermediate sedimentation tank enters a catalytic tank to further effectively oxidize and decompose organic matters which are difficult to degrade by an aerobic treatment unit and then enters a coagulating sedimentation tank, a flocculating agent is added into the coagulating sedimentation tank, pollutants which are difficult to degrade can be further removed, phosphorus and color can be removed by a method of adding chemicals and coagulating, and most pathogenic microorganisms in the sewage are killed by an effluent disinfecting contact tank of the coagulating sedimentation tank.
A discharge unit: the oxidation pond is a sewage aerobic biological treatment pond with symbiosis of bacteria and algae. The depth is shallow, and is 0.3-0.5 m. Sunlight can directly penetrate to the bottom of the pond, bacteria, protozoa and algae exist in the pond, dissolved oxygen is provided by photosynthesis and wind force stirring of the algae, aerobic microorganisms degrade organic matters, supernatant of the oxidation pond is collected when sewage is discharged, and a water pump is installed.
A biogas processing unit: constant pressure device: 1 set, type: HY-300S, which ensures that the working pressure of the red mud plastic methane tank is constant at 300 Pa. The device adopts SUS304 stainless steel with the thickness of 2mm and other anticorrosive materials; a gas-water separator: 2 sets in total, the types are: QS-300/1000S. The device adopts 2mm thickness SUS304 stainless steel and other anticorrosive materials, packs the condensation material in, and the bottom sets up the drain valve. Most of moisture in the methane is removed from the methane generated by the anaerobic reaction through a condensation method; a desulfurization device: 2 sets, type: TL-500S. By adopting a dry desulfurization technology, the device adopts 2mm thick SUS304 stainless steel and other anticorrosive materials, and is internally provided with a gas diffusion hole and a drain valve. The marsh gas adopts low-pressure desulfurization and internal circulation uniform gas distribution, and the marsh gas and the methane are removedThe sulfur agent can be slowly and fully contacted, the desulfurization effect is good, and the sulfur agent can be used for 60-90 days after being charged once; a pressure relief device: 1 set, type: XY-300S. The device adopts 2mm thick SUS304 stainless steel and other anticorrosive materials, and ensures that the pressure of the red mud plastic gas storage system is within 300Pa working range; an air storage bag: 4 in total, each gas storage volume is about 150m3Total gas storage volume of about 600m3The specification ZQD-phi 4.0m × 12.0 m. The thickness of the end socket materials at two sides is 1.8mm, and the thickness of the other materials is 1.2 mm. The air storage pressure is 300Pa, and the air storage device has the characteristics of corrosion resistance, ageing resistance and long service life; a supercharging device: 1 set, type: ZY-300, single set maximum air supply 180m3H; a pressure storage device: 1 set, type: GQ-2000/10. 2.0m multiplied by 3.0m, 8mm in thickness, made of carbon steel, strictly performing anti-corrosion treatment on the inner part and the outer part, and arranging a drainage valve at the bottom; the device can buffer the system pressure and reduce the starting frequency of the supercharger; fireretardant purifying distributor of marsh gas: 1 set, type: ZJF-426/80A. The material carbon steel has the thickness of 4mm, the inside and the outside are strictly subjected to antiseptic treatment, and the purification and filtration flame arrester, the pressure reducing valve special for 80A biogas, the pressure gauge and the drain valve are matched, so that the biogas can be fully purified and filtered. Meanwhile, tempering is controlled, the pressure range is adjusted to be 8-13 kPa, and the gas is supplied to a combustor for use.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model belongs to the prerequisite of not deviating from the utility model discloses, can also make a plurality of equal substitution or obvious variants, performance or usage are the same moreover, all should regard as belonging to the utility model's scope of protection.
Claims (8)
1. The pig farm solid-liquid separation and treatment system is characterized by comprising a pretreatment unit, an anaerobic treatment unit, an aerobic treatment unit, a methane treatment unit, a catalytic treatment unit and a discharge unit;
the pretreatment unit is connected with the anaerobic treatment unit, and solid-liquid separation and primary acidification treatment are carried out on solid and liquid discharge of a pig farm by the pretreatment unit;
the anaerobic treatment unit is connected with the biogas treatment unit, and liquid discharge pretreated by the pretreatment unit is subjected to anaerobic treatment to generate biogas;
the biogas treatment unit is connected with the aerobic treatment unit and is used for carrying out water-gas separation and desulfurization treatment;
the aerobic treatment unit is connected with the anaerobic treatment unit and the biogas treatment unit, and waste liquid generated by the anaerobic treatment unit and liquid separated by the biogas treatment unit are subjected to aerobic treatment;
the catalytic treatment unit is connected with the discharge unit and is used for carrying out catalytic oxidation on the waste liquid subjected to aerobic treatment;
and the discharge unit discharges qualified waste liquid.
2. The pig farm solid-liquid separation and treatment system according to claim 1, wherein the pretreatment unit comprises a grid groove, a sewage collection regulating tank, a solid-liquid separator, a primary sedimentation tank, a blending tank and a secondary sedimentation tank which are connected in sequence.
3. The pig farm solid-liquid separation and treatment system of claim 2, wherein the anaerobic treatment unit comprises an anaerobic tank connected to a secondary sedimentation tank.
4. The pig farm solid-liquid separation and treatment system according to claim 3, wherein the aerobic treatment unit comprises an anoxic tank, an aerobic tank and a settling tank, and the anoxic tank is connected with the anaerobic tank.
5. The pig farm solid-liquid separation and treatment system according to claim 3, wherein the biogas treatment unit comprises a constant pressure device, a gas-water separator, a desulphurization device, a drying device, a gas storage bag and a biogas fire-retardant purification distribution device, and the constant pressure device is connected with the anaerobic tank.
6. The pig farm solid-liquid separation and treatment system of claim 4, wherein the catalytic treatment unit comprises a catalytic tank, a coagulating sedimentation tank, a disinfecting contact tank, the catalytic tank being connected to a settling tank.
7. The pig farm solid-liquid separation and treatment system of claim 6, wherein the discharge unit comprises a lagoon connected to a disinfection contact tank, a sewage discharge outlet.
8. The swine farm solid-liquid separation and treatment system according to claim 5, wherein the air reservoir bag is connected to a pressure relief device and the gas-water separator is connected to an anoxic tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822258705.XU CN210103667U (en) | 2018-12-29 | 2018-12-29 | Pig farm solid-liquid separation and processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822258705.XU CN210103667U (en) | 2018-12-29 | 2018-12-29 | Pig farm solid-liquid separation and processing system |
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| Publication Number | Publication Date |
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| CN210103667U true CN210103667U (en) | 2020-02-21 |
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| CN201822258705.XU Expired - Fee Related CN210103667U (en) | 2018-12-29 | 2018-12-29 | Pig farm solid-liquid separation and processing system |
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