CN216303398U - Transversely-crossed anaerobic sludge interception and digestion system - Google Patents
Transversely-crossed anaerobic sludge interception and digestion system Download PDFInfo
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- CN216303398U CN216303398U CN202122457840.9U CN202122457840U CN216303398U CN 216303398 U CN216303398 U CN 216303398U CN 202122457840 U CN202122457840 U CN 202122457840U CN 216303398 U CN216303398 U CN 216303398U
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Abstract
The utility model discloses a transverse cross anaerobic sludge intercepting and digesting system which comprises a sewage collecting pool, an intercepting and digesting device, a primary forced pulse water pool and a pressure maintaining and stabilizing tank which are sequentially communicated from left to right, wherein the intercepting and digesting device comprises a plurality of intercepting and digesting pools which are sequentially communicated from left to right, the middle end in the intercepting and digesting pool is provided with a plurality of intensive elastic fillers which are transversely arranged from left to right through a central line, the intensive elastic fillers are arranged in a cross and staggered manner, the lower end in the intercepting and digesting pool is provided with anaerobic active sludge particles, and the middle part of the lower end in the intercepting and digesting pool is provided with a pulse releasing device. The intensive elastic filler in the interception digestion tank is transversely arranged in a cross mode, so that the anaerobic activated sludge particles are intercepted, excessive sludge loss is prevented, the concentration of the activated sludge in the digestion tank is ensured to continuously keep a high concentration level, and the degradation efficiency of organic matters is greatly improved.
Description
Technical Field
The utility model relates to the technical field of biological sewage treatment, in particular to a transverse cross anaerobic sludge interception digestion system.
Background
There are various classifications of anaerobic digestion processes. According to the growth state of the microorganism, the method is divided into an anaerobic activated sludge method and an anaerobic biofilm method; the anaerobic activated sludge method comprises a common digestion tank, an anaerobic contact process, a hydrolysis (acidification) pretreatment process, an up-flow anaerobic sludge bed reactor and the like. The anaerobic biological membrane method comprises an anaerobic biological filter, an anaerobic fluidized bed, an anaerobic biological rotating disk and the like. Wherein the anaerobic biofilm method is a biological treatment method for purifying organic matters in sewage by using a biofilm formed by anaerobic microorganisms attached to the surface of a carrier. When the carrier is immersed in organic sewage containing nutrients and microbes, the bacteria cells attached to the surface of the carrier grow and reproduce to form a biofilm filled with microbes under the condition of sewage flow, so that the organic nutrients in the sewage are absorbed, and the aim of purifying the organic sewage is fulfilled.
The anaerobic biomembrane reactor has relatively great specific surface area and increased mass transfer area, and this strengthens the mass transfer process. However, the anaerobic biofilm reactor generally has the problems of long start-up period, difficult biofilm formation, easy biofilm conglomeration of part of fillers, poor mass transfer effect and unreasonable height of a filler layer, and the increase of the water SS caused by flushing sludge out of the reactor, and the activated sludge is floated out of the system by the methane generated by the anaerobic reaction to cause the loss of the activated sludge, so that the concentration of the anaerobic sludge cannot reach a high concentration level, and the digestion and removal efficiency of organic matters in the sewage is reduced.
The above disadvantages need to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a transverse cross anaerobic sludge interception digestion system which can reasonably solve the defects generated by the prior art and realize high biofilm formation speed, continuous high-concentration activated sludge concentration maintenance, lower effluent suspended matter, higher organic matter removal rate and stronger impact load resistance.
The technical scheme of the utility model is as follows:
the utility model provides a transverse cross anaerobic sludge intercepting and digesting system, which comprises a sewage collecting pool, an intercepting and digesting device, a primary forced pulse water pool and a pressure maintaining and stabilizing tank which are sequentially communicated from left to right, wherein the intercepting and digesting device comprises a plurality of intercepting and digesting pools which are sequentially communicated from left to right, the intercepting and digesting pool at the leftmost side is communicated with the sewage collecting pool, the intercepting and digesting pool at the rightmost side is communicated with the primary forced pulse water pool,
the anaerobic digestion tank is characterized in that a plurality of intensive elastic fillers which are transversely arranged from left to right through a central line are arranged at the middle end of the interior of the interception digestion tank, the intensive elastic fillers are arranged in a staggered mode in a crossed mode, anaerobic activated sludge particles are arranged at the lower end of the interior of the interception digestion tank, a pulse release device is arranged in the middle of the lower end of the interior of the interception digestion tank, and the pulse release device is communicated with the output end of the pressure maintaining and stabilizing tank.
According to the scheme, a sewage lifting pump is arranged in the sewage collecting tank, water inlets are formed in the upper ends of the left sides of the intercepting digestion tank and the first-stage forced pulse water tank, a water outlet is formed in the upper end of the right side of the intercepting digestion tank, and a water distributor is arranged at the lower end of the inside of the intercepting digestion tank;
the sewage lifting pump is communicated with the water distributor of the interception digestion tank on the leftmost side through a primary perforated sewage pipe, and the primary perforated sewage pipe penetrates through the water inlet of the interception digestion tank on the leftmost side;
in two adjacent interception digestion tanks, the water outlet of the left interception digestion tank is communicated with the water inlet of the right interception digestion tank, and the water inlet of the right interception digestion tank is communicated with the water distributor of the right interception digestion tank through a secondary perforated sewage pipe;
and the water outlet of the rightmost interception digestion tank is communicated with the water inlet of the first-stage forced pulse water tank.
Furthermore, a check valve and a flowmeter are arranged on the primary perforated sewage pipe.
According to the utility model of the scheme, the bottom of the primary forced pulse water pool is provided with the bottom valve, a centrifugal pump is arranged between the primary forced pulse water pool and the pressure maintaining and stabilizing tank, a water suction port of the centrifugal pump is communicated with a water outlet of the bottom valve through a pipeline, and a water outlet of the centrifugal pump is communicated with a water inlet of the pressure maintaining and stabilizing tank through a pipeline.
According to the utility model of the scheme, the water outlet of the pressure maintaining and stabilizing tank is communicated with the pulse release device of each interception digestion tank through the release pipe.
Further, the release pipe including be responsible for and with a plurality of minutes pipes of being responsible for the intercommunication, the water inlet of being responsible for with the delivery port intercommunication of pressurize surge tank, the delivery port of being responsible for with correspond the pulse release intercommunication of holding back the digestion tank, be provided with first ooff valve on being responsible for, be provided with the second ooff valve on being responsible for.
According to the scheme, the interception digestion device comprises a first-stage interception digestion tank, a second-stage interception digestion tank and a third-stage interception digestion tank which are sequentially communicated from left to right, wherein the first-stage interception digestion tank is communicated with the sewage collection tank, and the third-stage interception digestion tank is communicated with the first-stage forced pulse water tank.
Furthermore, the solubility of anaerobic activated sludge in the first-stage retention digestion tank is 25g/L, the solubility of anaerobic activated sludge in the second-stage retention digestion tank is 15g/L, and the solubility of anaerobic activated sludge in the third-stage retention digestion tank is 3 g/L.
According to the utility model of the scheme, the beneficial effects of the utility model are as follows:
1. the intensive elastic fillers in the interception digestion tank are transversely arranged in a cross mode, so that the anaerobic activated sludge particles are intercepted, excessive sludge loss is prevented, the concentration of the anaerobic activated sludge in the interception digestion tank is ensured to be continuously kept at a high concentration level, and the effect of facilitating full contact reaction of sewage and sludge is achieved; meanwhile, the dense elastic filler can be uniformly stretched in a three-dimensional and all-dimensional manner and has a large specific surface area, so that anaerobic microorganisms are attached to the surface of the dense elastic filler to grow, a biological film is rapidly formed on the surface of the dense elastic filler, and the effect of facilitating film hanging is achieved;
2. the removal rate of COD can reach 80% in the first-stage retention digestion tank, 60% in the second-stage retention digestion tank and 40% in the third-stage retention digestion tank;
3. the anaerobic microorganism has long solid retention time, high impact load resistance, short starting time, no need of residual sludge treatment and convenient operation and management.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is an enlarged view of a portion C in fig. 1.
In the context of the figures, it is,
1. a sewage collection tank; 2. a first stage interception digestion tank; 3. a second stage entrapment digestion tank; 4. a third stage interception digestion tank; 5. a first-stage forced pulse water pool; 6. a pressure maintaining and stabilizing tank; 7. dense elastic filler; 8. anaerobic activated sludge granules; 9. a pulse release device; 10. a sewage lift pump; 11. a water distributor; 12. a first-stage perforated sewage pipe; 13. a check valve; 14. a flow meter; 15. a second-stage perforated sewage pipe; 16. a third-stage perforated sewage pipe; 17. a bottom valve; 18. a centrifugal pump; 19. a release tube; 20. a first on-off valve; 21. and a second on-off valve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The terms "upper", "lower", "left", "right", "bottom", "inner", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are only for convenience of description and should not be construed as limiting the technical solution. The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1 to 4, the present embodiment provides a transversely crossing anaerobic sludge-intercepting digestion system, which includes a sewage collecting tank 1, an intercepting digestion device, a first-stage forced pulse water tank 5 and a pressure-maintaining pressure-stabilizing tank 6, which are sequentially connected from left to right, wherein the intercepting digestion device includes a first-stage intercepting digestion tank 2, a second-stage intercepting digestion tank 3 and a third-stage intercepting digestion tank 4, which are sequentially connected from left to right, the first-stage intercepting digestion tank 2 is communicated with the sewage collecting tank 1, and the third-stage intercepting digestion tank 4 is communicated with the first-stage forced pulse water tank 5.
The middle ends of the interiors of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4 are respectively provided with a plurality of intensive elastic fillers 7 which are transversely arranged from left to right through center lines, and the intensive elastic fillers 7 are arranged in a staggered manner in a crossed manner; anaerobic activated sludge particles 8 are arranged at the lower ends of the interiors of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4; digester 2 is held back to the first order, the digestion tank 3 is held back to the second level and the digestion tank 4 is held back to the third level in the middle of the inside lower extreme all is provided with pulse release device 9, pulse release device 9 and pressurize surge tank 6's output intercommunication, pressurize surge tank 6 is held back digester 2 to the first order through pulse release device 9, digestion tank 3 is held back to the second level and digestion tank 4 is held back to the third level carries out the pulse, make digestion tank 2 is held back to the first order, digestion tank 3 is held back to the second level and anaerobic active sludge particle 8 of the inside lower extreme of digestion tank 4 is the upflow state is held back to the third level, evenly to the diffusion in the cell body, avoid anaerobic active sludge particle 8 to pile up the sediment at the bottom of the pool, make anaerobic active sludge particle 8 can fully contact with sewage, degrade organic matter and organic matter in the sewage.
In the utility model, the intensive elastic filler 7 is transversely arranged in a cross way, plays a role in intercepting anaerobic activated sludge particles, prevents excessive sludge loss, ensures that the concentration of the anaerobic activated sludge in the intercepted digestion tank is continuously kept at a high concentration level, plays a role in facilitating the full contact reaction of sewage and sludge, and greatly improves the degradation efficiency of organic matters; meanwhile, the dense elastic filler 7 can be uniformly stretched in a three-dimensional and all-dimensional manner and has a large specific surface area, so that anaerobic microorganisms are attached to the surface of the dense elastic filler 7 to grow, a biological film is rapidly formed on the surface of the dense elastic filler 7, and the effect of facilitating film hanging is achieved.
Referring to fig. 2 to 4, in the present embodiment, a sewage lift pump 10 is disposed inside the sewage collection tank 1, water inlets are disposed at left upper ends of the first stage interception digestion tank 2, the second stage interception digestion tank 3, the third stage interception digestion tank 4 and the first stage forced pulse water tank 5, water outlets are disposed at right upper ends of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4, and water distributors 11 are disposed at inner lower ends of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4.
The sewage lift pump 10 is communicated with a water distributor 11 of the first-stage interception digestion tank 2 through a first-stage perforated sewage pipe 12, the first-stage perforated sewage pipe 12 penetrates through a water inlet of the first-stage interception digestion tank 2, and the sewage lift pump 10 uniformly distributes the sewage stored in the sewage collection tank 1 to the lower end of the interior of the first-stage interception digestion tank 2 through the first-stage perforated sewage pipe 12 and the water distributor 11. Meanwhile, the first-level perforated sewage pipe 12 is provided with a check valve 13 and a flowmeter 14, the check valve 13 can prevent the backflow of sewage, and the flowmeter 14 is used for measuring the flow of sewage and is convenient for controlling the flow of sewage.
The water outlet of the first-stage interception digestion tank 2 is communicated with the water inlet of the second-stage interception digestion tank 3, the water inlet of the second-stage interception digestion tank 3 is communicated with the water distributor 11 of the second-stage interception digestion tank 3 through a second-stage perforated sewage pipe 15, sewage flows into the water distributor 11 of the second-stage interception digestion tank 3 through the second-stage perforated sewage pipe 15 after being digested for the first time in the first-stage interception digestion tank 2, and the water distributor 11 of the second-stage interception digestion tank 3 distributes the sewage uniformly to the lower end of the inside of the second-stage interception digestion tank 3.
The water outlet of the second-stage interception digestion tank 3 is communicated with the water inlet of the third-stage interception digestion tank 4, the water inlet of the third-stage interception digestion tank 4 is communicated with the water distributor 11 of the third-stage interception digestion tank 4 through a three-stage perforated sewage pipe 16, sewage flows into the water distributor 11 of the third-stage interception digestion tank 4 through the three-stage perforated sewage pipe 16 after being digested for the second time in the second-stage interception digestion tank 3, and the sewage is uniformly distributed to the lower end of the inside of the third-stage interception digestion tank 4 by the water distributor 11 of the third-stage interception digestion tank 4.
The water outlet of the third stage interception digestion tank 4 is communicated with the water inlet of the first stage forced pulse water tank 5, and sewage automatically flows into the first stage forced pulse water tank 5 through a third stage perforated sewage pipe 16 after the third digestion of the third stage interception digestion tank 4.
Referring to fig. 4, in this embodiment, a bottom valve 17 is disposed at the bottom of the primary forced pulse water tank 5, a centrifugal pump 18 is disposed between the primary forced pulse water tank 5 and the pressure-maintaining and pressure-stabilizing tank 6, a water suction port of the centrifugal pump 18 is communicated with a water outlet of the bottom valve 17 through a pipeline, and a water outlet of the centrifugal pump 18 is communicated with a water inlet of the pressure-maintaining and pressure-stabilizing tank 6 through a pipeline. The pressure-maintaining and pressure-stabilizing tank 6 stores water in the pressure-maintaining and pressure-stabilizing tank 6 by using compressibility of the water by the centrifugal pump 18.
Referring to fig. 2 and 4, in the present embodiment, the water outlet of the pressure-maintaining and pressure-stabilizing tank 6 is communicated with the pulse release devices 9 of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4 through the release pipe 19, and the pressure-maintaining and pressure-stabilizing tank 6 is connected with the pulse release devices 9 of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4 for pulse through frequency conversion control. Specifically, the release pipe 19 comprises a main pipe and a plurality of branch pipes communicated with the main pipe, a water inlet of the main pipe is communicated with a water outlet of the pressure maintaining and stabilizing tank 6, water outlets of the branch pipes are communicated with the corresponding pulse release devices 9 of the interception digestion tanks, and the main pipe is provided with a first switch valve 20 which is used for uniformly managing the opening and closing of the pulse release devices 9 of the first-stage interception digestion tank 2, the second-stage interception digestion tank 3 and the third-stage interception digestion tank 4; the branch pipe is provided with a second switch valve 21 for independently managing the opening and closing of the pulse release device 9 of the first stage interception digestion tank 2, the second stage interception digestion tank 3 and the third stage interception digestion tank 4. Preferably, the first on-off valve 20 is a butterfly valve, and the second on-off valve 21 is an electromagnetic valve.
In this embodiment, the solubility of anaerobic activated sludge inside the first-stage retention digestion tank 2 is 25g/L, the COD removal rate of sewage in the first-stage retention digestion tank 2 reaches 80%, the solubility of anaerobic activated sludge inside the second-stage retention digestion tank 3 is 15g/L, the COD removal rate of sewage in the second-stage retention digestion tank 3 reaches 60%, the solubility of anaerobic activated sludge inside the third-stage retention digestion tank 4 is 3g/L, and the COD removal rate of sewage in the third-stage retention digestion tank 4 reaches 40%.
In this embodiment, the first stage interception digestion tank 2, the second stage interception digestion tank 3, the third stage interception digestion tank 4 and the first stage forced pulse water tank 5 are communicated through a partition plate with an overflowing hole at the upper part.
In another aspect, the present invention provides a transverse crossing anaerobic sludge-retaining digestion process applied to the transverse crossing anaerobic sludge-retaining digestion system, including the following steps:
and step S1, conveying the sewage stored in the sewage collecting tank 1 to a water distributor 11 inside the first-stage intercepting digestion tank 2. Specifically, a sewage lifting pump 10 is arranged in the sewage collecting tank 1, and the sewage lifting pump 10 conveys the sewage in the sewage collecting tank 1 to a water distributor 11 in the first-stage intercepting digestion tank 2.
Step S2, the water distributor 11 of the first stage interception digestion tank 2 distributes the sewage evenly to the lower end of the interior of the first stage interception digestion tank 2; starting the pressure maintaining and stabilizing tank 6, and pulsing the pressure maintaining and stabilizing tank 6 through a pulse release device 9 in the first-stage interception digestion tank 2 to ensure that anaerobic activated sludge particles 8 accumulated and precipitated at the lower end in the first-stage interception digestion tank 2 are in an upflow state and uniformly diffuse into the tank body; when sewage flows through the dense elastic packing 7 at the middle end in the first-stage interception digestion tank 2, the sewage is digested for the first time by anaerobic microorganisms attached to the surface of the dense elastic packing 7 and in a suspension state, and COD (chemical oxygen demand) and organic matters in the sewage are degraded. Specifically, the intensive elastic fillers 7 in the pool are transversely arranged and arranged in a staggered manner, and when sewage flows through the intensive elastic fillers 7, because the intensive elastic fillers 7 can be uniformly stretched in a three-dimensional and all-dimensional manner and have a large specific surface area, anaerobic microorganisms are attached to the surfaces of the intensive elastic fillers 7 to grow, and a biological film is rapidly formed on the surfaces of the intensive elastic fillers 7. Meanwhile, the intensive elastic filler 7 in the tank plays a role in intercepting anaerobic activated sludge particles, the concentration of the anaerobic activated sludge in the tank is kept at 25g/L along with the continuous movement of the anaerobic activated sludge particles 8, and the COD removal rate of the sewage in the first-stage interception digestion tank 2 reaches 80%.
S3, enabling the sewage after the first digestion to automatically flow into a water distributor 11 in the second-stage interception digestion tank 3, and enabling the sewage to be uniformly distributed to the lower end in the second-stage interception digestion tank 3; starting the pressure maintaining and stabilizing tank 6, and pulsing the pressure maintaining and stabilizing tank 6 through a pulse release device 9 in the second-stage interception digestion tank 3 to ensure that anaerobic activated sludge particles 8 deposited at the lower end in the second-stage interception digestion tank 3 are in an upflow state and uniformly diffuse into the tank body; when sewage flows through the dense elastic packing 7 at the middle end in the second-stage interception digestion tank 3, the sewage is digested for the second time by anaerobic microorganisms attached to the surface of the dense elastic packing 7 and in a suspension state, and COD and organic matters in the sewage are degraded. Specifically, the intensive elastic fillers 7 in the pool are transversely arranged and arranged in a staggered manner, and when sewage flows through the intensive elastic fillers 7, because the intensive elastic fillers 7 can be uniformly stretched in a three-dimensional and all-dimensional manner and have a large specific surface area, anaerobic microorganisms are attached to the surfaces of the intensive elastic fillers 7 to grow, and a biological film is rapidly formed on the surfaces of the intensive elastic fillers 7. Meanwhile, the intensive elastic filler 7 in the tank plays a role in intercepting anaerobic activated sludge particles, the concentration of the anaerobic activated sludge in the tank is kept at 15g/L along with the continuous movement of the anaerobic activated sludge particles 8, and the COD removal rate of sewage in the second-stage interception digestion tank 3 reaches 60%.
S4, enabling the sewage after the second digestion to automatically flow into the water distributor 11 in the third-stage interception digestion tank 4, and enabling the sewage to be uniformly distributed to the lower end in the third-stage interception digestion tank 4; starting the pressure maintaining and stabilizing tank 6, and pulsing the pressure maintaining and stabilizing tank 6 through a pulse release device 9 in the third stage interception digestion tank 4 to ensure that anaerobic activated sludge particles 8 deposited at the lower end in the third stage interception digestion tank 4 are in an upflow state and uniformly diffuse into the tank body; when sewage flows through the dense elastic packing 7 at the middle end in the third-stage interception digestion tank 4, the sewage is digested for the third time by anaerobic microorganisms attached to the surface of the dense elastic packing 7 and in a suspension state, and COD (chemical oxygen demand) and organic matters in the sewage are degraded. Specifically, the intensive elastic fillers 7 in the pool are transversely arranged and arranged in a staggered manner, and when sewage flows through the intensive elastic fillers 7, because the intensive elastic fillers 7 can be uniformly stretched in a three-dimensional and all-dimensional manner and have a large specific surface area, anaerobic microorganisms are attached to the surfaces of the intensive elastic fillers 7 to grow, and a biological film is rapidly formed on the surfaces of the intensive elastic fillers 7. Meanwhile, the intensive elastic filler 7 in the tank plays a role in intercepting anaerobic activated sludge particles, the concentration of the anaerobic activated sludge in the tank is kept at 3g/L along with the continuous movement of the anaerobic activated sludge particles 8, and the COD removal rate of the sewage in the third-stage interception digestion tank 4 reaches 40%.
And S5, making the sewage after the third digestion automatically flow into the first-stage forced pulse water pool 5.
In this embodiment, the pressure-maintaining and pressure-stabilizing tank 6 stores water in the first-stage forced pulse water tank 5 in the pressure-maintaining and pressure-stabilizing tank 6 by using compressibility of water through the centrifugal pump 18, and pulses are performed by the pulse release device 9 connected to each stage of the retention digestion tank through frequency conversion control, for example, the pulses are performed once every fifteen minutes, so that the anaerobic activated sludge particles 8 are uniformly diffused into the tank body.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
The utility model is described above with reference to the accompanying drawings, which are illustrative, and it is obvious that the implementation of the utility model is not limited in the above manner, and it is within the scope of the utility model to adopt various modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other fields without modification.
Claims (8)
1. The utility model provides a digestion system is held back to horizontal alternately anaerobism mud, its characterized in that includes from a left side turn right sewage collecting pit, the digestion device of holding back, one-level forced pulse pond and pressurize surge tank that communicate in proper order, hold back digestion device and include a plurality of from a left side turn right the digestion tank of holding back that communicate in proper order, the leftmost the digestion tank of holding back with sewage collecting pit intercommunication, the rightmost side the digestion tank of holding back with one-level forced pulse pond intercommunication, adjacent it is provided with the baffle intercommunication of discharge orifice through upper portion between the digestion tank to hold back,
the anaerobic digestion tank is characterized in that a plurality of intensive elastic fillers which are transversely arranged from left to right through a central line are arranged at the middle end of the interior of the interception digestion tank, the intensive elastic fillers are arranged in a staggered mode in a crossed mode, anaerobic activated sludge particles are arranged at the lower end of the interior of the interception digestion tank, a pulse release device is arranged in the middle of the lower end of the interior of the interception digestion tank, and the pulse release device is communicated with the output end of the pressure maintaining and stabilizing tank.
2. The transverse crossing anaerobic sludge-entrapping digestion system according to claim 1, wherein a sewage lift pump is arranged inside the sewage collection tank, water inlets are arranged at the upper left ends of the entrapping digestion tank and the primary forced pulse water tank, a water outlet is arranged at the upper right end of the entrapping digestion tank, and a water distributor is arranged at the lower inside end of the entrapping digestion tank;
the sewage lifting pump is communicated with the water distributor of the interception digestion tank on the leftmost side through a primary perforated sewage pipe, and the primary perforated sewage pipe penetrates through the water inlet of the interception digestion tank on the leftmost side;
in two adjacent interception digestion tanks, the water outlet of the left interception digestion tank is communicated with the water inlet of the right interception digestion tank, and the water inlet of the right interception digestion tank is communicated with the water distributor of the right interception digestion tank through a secondary perforated sewage pipe;
and the water outlet of the rightmost interception digestion tank is communicated with the water inlet of the first-stage forced pulse water tank.
3. The transverse cross anaerobic sludge-entrapping digestion system according to claim 2, wherein said primary perforated sewer line is provided with a check valve and a flow meter.
4. The transversely crossing anaerobic sludge-entrapping digestion system according to claim 1, wherein a bottom valve is arranged at the bottom of the primary forced pulse water tank, a centrifugal pump is arranged between the primary forced pulse water tank and the pressure-maintaining pressure-stabilizing tank, a water suction port of the centrifugal pump is communicated with a water outlet of the bottom valve through a pipeline, and a water outlet of the centrifugal pump is communicated with a water inlet of the pressure-maintaining pressure-stabilizing tank through a pipeline.
5. The transverse cross anaerobic sludge-lock digestion system according to claim 1, characterized in that the water outlet of the pressure maintaining surge tank is communicated with the pulse release device of each of the lock digestion tanks through a release pipe.
6. The transversely crossing anaerobic sludge-entrapping digestion system according to claim 5, wherein the release pipe comprises a main pipe and a plurality of branch pipes communicated with the main pipe, the water inlet of the main pipe is communicated with the water outlet of the pressure-maintaining surge tank, the water outlets of the branch pipes are communicated with the corresponding pulse release devices of the entrapping digestion tank, the main pipe is provided with a first switch valve, and the branch pipes are provided with a second switch valve.
7. The transversely crossing anaerobic sludge-entrapping digestion system according to claim 1, wherein the entrapping digestion device comprises a first stage entrapping digestion tank, a second stage entrapping digestion tank and a third stage entrapping digestion tank which are sequentially communicated from left to right, the first stage entrapping digestion tank is communicated with the sewage collection tank, and the third stage entrapping digestion tank is communicated with the first stage forced pulse water tank.
8. The transverse cross anaerobic sludge-retention digestion system according to claim 7, characterized in that the anaerobic activated sludge solubility inside the first-stage retention digestion tank is 25g/L, the anaerobic activated sludge solubility inside the second-stage retention digestion tank is 15g/L, and the anaerobic activated sludge solubility inside the third-stage retention digestion tank is 3 g/L.
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