CN210764892U - MBR sewage integration treatment facility - Google Patents

Abstract

The utility model provides a MBR sewage integration treatment facility, is including the catch basin, a collection sewage section of thick bamboo, neutralization reaction device, the mud device that removes, anaerobism biological treatment device, aerobic biological treatment device, husky purification unit and the pure water storage device that communicate in proper order. The sludge removing device comprises a sludge removing cylinder, a first partition plate and a sludge blocking frame are arranged in the sludge removing cylinder, the inner cavity of the sludge removing cylinder is divided into a sewage flow channel and a sludge blocking purification cavity by the first partition plate, and the sewage flow channel is communicated with the reaction cylinder. The mud blocking frame is fixed on the first partition plate. The mud guard frame comprises a plurality of parallel mud guards, and the mud guards are obliquely arranged. The mud blocking frame divides the mud blocking purification cavity into a first sludge accumulation area and a first water purification area. The first sludge accumulation area is communicated with the sewage flow channel. The bottom of the sludge removing cylinder is provided with a first sludge discharge port. The sludge treatment device comprises a sludge storage cylinder, a sludge pump and a plate-and-frame filter press which are sequentially communicated. The sludge storage cylinder is communicated with the first sewage discharge port. The utility model discloses can effectively realize the purification treatment to sewage.

Description

MBR sewage integration treatment facility

Technical Field

The utility model relates to a sewage treatment technical field, in particular to MBR sewage integration treatment facility.

Background

At present, water pollution treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, in order to enable sewage discharge to reach corresponding indexes and achieve the purposes of protecting the environment and recycling water resources, a series of water pollution treatment procedures need to be carried out on industrial sewage, and meanwhile, water pollution is increasingly brought into daily life of common people. Therefore, the development of an apparatus capable of effectively purifying sewage is a problem which is urgently needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide an MBR integrated wastewater treatment apparatus capable of effectively purifying wastewater.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

MBR sewage integrated treatment equipment comprises a water collecting tank, a sewage collecting cylinder, a neutralization reaction device, a sludge removing device, an anaerobic biological treatment device, an aerobic biological treatment device, a sand purification treatment device and a purified water storage device which are sequentially communicated; the sludge removing device comprises a sludge removing cylinder, a first partition plate and a sludge blocking frame are arranged in the sludge removing cylinder, the first partition plate divides an inner cavity of the sludge removing cylinder into a sewage flow channel and a sludge blocking purification cavity, and the sewage flow channel is communicated with the reaction cylinder; the mud blocking frame is positioned in the mud blocking purification cavity and is fixed on the first partition plate and the mud removing cylinder; the mud guard frame comprises a plurality of mud guards which are arranged in parallel, and the mud guards are obliquely arranged; the mud blocking frame divides the mud blocking purification cavity into a first sludge accumulation area positioned below the mud blocking frame and a first water purification area positioned above the mud blocking frame; the sewage flow channel is respectively communicated with a water outlet of the neutralization reaction device and the first sludge accumulation area; the bottom end of the sludge removing cylinder is provided with a first sludge discharge port corresponding to the first sludge accumulation area, and the first sludge discharge port is provided with a first sludge discharge valve; the MBR sewage integrated treatment equipment also comprises a sludge treatment device, wherein the sludge treatment device comprises a sludge storage cylinder, a sludge pump and a plate-and-frame filter press which are sequentially communicated; the sludge storage cylinder is communicated with the first sludge accumulation area.

Foretell MBR sewage treatment plant can effectively realize the purification treatment to sewage, but also can be with the mud of filtering out from sewage wash the packing of dehydrating, makes things convenient for the transport of staff to mud.

In one embodiment, the neutralization reaction device comprises a reaction cylinder communicated with a sewage collecting cylinder and a sludge removing device, and the top of the reaction cylinder is provided with a PAM feed opening, a purifying agent feed opening and an alkali feed opening.

In one embodiment, a pH value detection mechanism is arranged in the reaction cylinder.

In one embodiment, a pH value adjusting water distributor is arranged in the reaction cylinder.

In one embodiment, a stirring mechanism is arranged in the reaction cylinder.

In one embodiment, the mud guard is connected with the first partition plate and the mud removing cylinder through an elastic ring, a vibrator is arranged on the mud guard, and a waterproof cover is arranged on the mud guard corresponding to the vibrator.

In one embodiment, the anaerobic biological treatment device comprises an anaerobic biological treatment cylinder, a first water distributor and an anaerobic biological filler which are arranged in the anaerobic biological treatment cylinder, wherein a second water purification area positioned above the anaerobic biological filler and a first sludge bed area positioned below the anaerobic biological filler area are arranged in the anaerobic biological treatment cylinder; the first water distributor is arranged in the first sludge bed area; a second sewage draining outlet is formed in the bottom of the anaerobic biological cylinder, and a second sewage draining valve is arranged on the second sewage draining outlet; the second sewage draining outlet is communicated with a sludge inlet of the sludge storage cylinder.

In one embodiment, the aerobic biological treatment device comprises an aerobic biological treatment cylinder, a water supply mechanism arranged outside the aerobic biological treatment cylinder, and a second water distributor and an aerobic biological filler which are arranged in the aerobic biological treatment cylinder, wherein a third water purification area positioned above the aerobic biological filler and a second sludge bed area positioned below the aerobic biological filler are arranged in the aerobic biological treatment cylinder, and the second sludge bed area is respectively communicated with a water inlet of the anaerobic biological treatment device and a sludge inlet of a sludge storage cylinder through pipelines; the second water distributor is communicated with the water supply mechanism through a pipeline and is arranged in the second sludge bed area.

In one embodiment, the sand purification treatment device comprises a sand purification treatment cylinder, a porous filter plate is arranged in the sand purification treatment cylinder, a sand purification area positioned above the porous filter plate and a second sludge accumulation area positioned below the porous filter plate are arranged in the sand purification treatment cylinder, purified water sand doped with activated carbon is filled in the sand purification area, a purified water tank is arranged at the top of the sand purification area, and the purified water tank is communicated with a water inlet of the purified water storage device through a pipeline; the bottom of the sand purification treatment cylinder is provided with a third sewage outlet corresponding to the second sludge accumulation area, and the third sewage outlet is provided with a third sewage valve and communicated with a sludge inlet of the sludge storage cylinder.

In one embodiment, the purified water storage device comprises a purified water storage cylinder communicated with the water outlet of the sand purification treatment device, and the purified water discharging pipe is arranged on the purified water storage cylinder; a second partition plate and a water purification filter plate are arranged in the water purification storage cylinder, the water purification storage cylinder is divided into a water purification flow channel and a water purification storage cavity by the second partition plate, and the water purification filter plate is positioned in the water purification storage cavity and is arranged on the second partition plate; the purified water storage cavity is provided with a purified water accumulation area which is positioned above the purified water filter plate and is communicated with the purified water discharge pipe and a third sludge accumulation area which is positioned below the purified water filter plate; the bottom of the purified water storage cylinder is provided with a fourth blow-down valve corresponding to the third sludge retention area, the fourth blow-down valve is provided with a fourth blow-down valve, and the fourth blow-down valve is communicated with a sludge inlet of the sludge storage cylinder.

Drawings

FIG. 1 is a schematic structural diagram of an MBR sewage integrated treatment device according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the neutralization reaction apparatus of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the de-sludging apparatus of FIG. 1;

FIG. 4 is a schematic structural view of the anaerobic biological treatment apparatus of FIG. 1;

FIG. 5 is a schematic structural view of the aerobic biological treatment apparatus in FIG. 1;

FIG. 6 is a schematic structural diagram of the sand purification treatment apparatus of FIG. 1;

FIG. 7 is a schematic diagram of the structure of the purified water storage device in FIG. 1;

in the figure:

10. a water collecting tank;

20. a sewage collecting cylinder;

30. a neutralization reaction device; 31. a reaction cylinder; 32. an alkali feed port; 33. a PAM feed port; 34. a purifying agent charging port; 35. a pH value detection mechanism; 36. a pH value adjusting water distributor;

40. a sludge removal device; 41. a soil removal mud drum; 42. a first separator; 43. a sewage flow channel; 44. a mud-blocking purification cavity; 441. a first sludge retention zone; 442. a first water purification zone; 45. a first drain port; 46. a first waste valve; 47. a sewage conduit; 48. mud guard

50. An anaerobic biological treatment device; 51. an anaerobic biological treatment cylinder; 52. anaerobic biological filler; 53. a first sludge bed zone; 54. a second water purification zone; 55. a first water distributor; 56. a second sewage draining outlet; 57. a second blowoff valve;

60. an aerobic biological treatment device; 61. an aerobic biological treatment cylinder; 62. aerobic biological filler; 63. a second sludge bed zone; 64. a third water purification zone; 65. a second water distributor; 66. a water supply mechanism; 67. a third sewage draining outlet; 68. a third blowoff valve;

70. a sand purification treatment device; 71. a sand purification treatment cylinder; 72. a porous filter plate; 73. a second sludge retention zone; 74. a sand purification zone; 75. a water purifying tank; 76. a water inlet pipe; 77. a fourth sewage draining outlet; 78. a fourth blowoff valve;

80. a purified water storage device; 81. a purified water storage cylinder; 82. a second separator; 83. a purified water flow passage; 84. a water purification filter plate; 85. a purified water storage chamber; 86. a third sludge retention zone; 87. a clean water accumulation zone; 88. a water purification calandria;

90. a sludge treatment device; 91. a sludge storage cylinder; 92. a mud pump; 93. and (4) a plate-and-frame filter press.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 7, in accordance with a preferred embodiment of the present invention, an MBR integrated sewage treatment apparatus includes a water collecting tank 10, a sewage collecting cylinder 20, a neutralization reaction device 30, a sludge removing device 40, an anaerobic biological treatment device 50, an aerobic biological treatment device 60, a sand purification treatment device 70, and a purified water storage device 80, which are sequentially connected. Wherein the sewage collecting cylinder 20 is used for storing untreated sewage. The reaction apparatus 30 is used for adding PAM, alkali, or other sewage purifying agent to the sewage for performing neutralization treatment and preliminary purification treatment on the sewage. The sludge removing device 40 is used to primarily remove most of the sludge in the sewage. The anaerobic biological treatment device 50 and the aerobic biological treatment device 60 are used for carrying out biological treatment on the sewage to achieve the purpose of purification. The sand purification treatment device 70 is used to filter and purify water by purified water sand mixed with activated carbon. The purified water storage device 80 is used for storing purified water, and the purified water storage device 80 is provided with a purified water discharging pipe 88 for sending the purified water stored by the purified water storage device 80 to a place needing purified water.

As shown in FIG. 2, the neutralization reaction device 30 comprises a reaction cylinder 31 communicating the water outlet of the sewage collecting cylinder 20 and the water inlet of the sludge removing device 40, a PAM feed opening 33, a purifying agent feed opening 34 and an alkali feed opening 32 are arranged at the top of the reaction cylinder 31, the PAM feed opening 33 is used for feeding PAM, the purifying agent feed opening 34 is used for feeding purifying agent, and the alkali feed opening 32 is used for feeding alkali. A pH detection mechanism 35 is provided in the reaction cylinder 31, and is configured to detect whether the pH of the wastewater in the reaction cylinder 31 reaches a predetermined pH. The reaction cylinder 31 is internally provided with a pH value adjusting water distributor 36, if the pH value in the reaction cylinder 31 is higher, water can be added into the reaction cylinder 31 through the pH value adjusting water distributor, so as to achieve the purpose of reducing the pH value.

In one embodiment, a stirring device is provided in the reaction cylinder 31 for stirring the sewage and the alkali, PAM and purifying agent added to the sewage, so that the sewage can be better primarily purified.

As shown in fig. 3, the device 40 for removing sludge includes a sludge removing cylinder 41, a first partition plate 42 and a sludge blocking frame are disposed in the sludge removing cylinder 41, the first partition plate 42 divides an inner cavity of the sludge removing cylinder 41 into a sewage flow passage 43 and a sludge blocking and purifying cavity 44, and the sewage flow passage 43 is communicated with a water outlet of the reaction cylinder 31 through a sewage pipe 47. The mud guard is positioned in the mud guard purifying cavity 44 and is fixed on the first clapboard 42 and the mud removing cylinder 41. The mud guard frame comprises a plurality of mud guards 48 which are arranged in parallel, and the mud guards 48 are obliquely arranged. The mud guard divides the mud guard purifying chamber 44 into a first sludge retention area 441 located below the mud guard and a first water purification area 442 located above the mud guard. The first sludge accumulation area 441 is communicated with the sewage flow channel 43. The first water purification region 442 communicates with the water inlet of the anaerobic biological treatment device 50. After the sewage in the reaction cylinder 31 reaches the required purification degree after the reaction is completed, the sewage in the reaction cylinder 31 firstly enters the sewage flow channel 43 of the sludge removal cylinder 41, then sequentially passes through the first sludge accumulation area 441 and the sludge blocking frame and then enters the first water purification area 442, and the water in the first water purification area 442 flows into the anaerobic biological treatment device 50. When sewage passes through the mud blocking frame, the mud blocking plate 48 of the mud blocking frame can block sludge in the sewage, so that most of the sludge in the sewage is blocked to the first sludge accumulation area 441 to be accumulated. The bottom of a decontamination mud cylinder 41 corresponds first mud area 441 and is equipped with first drain outlet 45, is equipped with first blowdown valve 46 on first drain outlet 45, and when the mud in first mud area 441 is piled up to a certain degree, opens first blowdown valve 46, makes first drain outlet 45 with the accumulational mud discharge in first mud accumulation district. In order to facilitate the smooth discharge of sludge from the first sludge accumulation area, the bottom end of the sludge removal cylinder 41 is tapered.

In one embodiment, the mud guard is connected with the first partition plate 42 and the mud removing cylinder 41 through an elastic ring, the vibrator is arranged on the mud guard, and the waterproof cover is arranged on the mud guard corresponding to the vibrator. The elastic ring enables the mud guard frame to be flexibly connected with the first partition plate 42 and the mud removing cylinder 4 respectively, so that the mud guard frame can vibrate strongly along with the vibrator when the vibrator works, on one hand, mud in water can be better blocked, and on the other hand, mud is not easy to adhere to the mud guard 48.

As shown in fig. 4, the anaerobic biological treatment device 50 comprises an anaerobic biological treatment cylinder 51, and a first water distributor 55 and an anaerobic biological filler 52 which are arranged in the anaerobic biological treatment cylinder 51, wherein the anaerobic biological treatment cylinder 51 is provided with a second water purification area 54 which is arranged above the anaerobic biological filler 52 and a first sludge bed area 53 which is arranged below the anaerobic biological filler 52, and the first water distributor 55 is arranged in the first sludge bed area 53. The second water purification zone 54 is in communication with the water inlet of the aerobic biological treatment unit 60. After entering the first sludge blanket area 53 through the first water distributor 55, the sewage is rapidly and uniformly mixed with the sludge blanket of the first sludge blanket area 53, and the first sludge blanket area 53 rapidly intercepts and adsorbs the granular substances and the colloidal substances in the sewage. Then, the sewage enters the anaerobic biological filler 52 and is biologically treated and purified by anaerobic organisms, then the water treated by the anaerobic biological filler 52 enters the second water purification area 54, and the water in the second water purification area 54 enters the aerobic biological treatment device 60 again. The bottom of the anaerobic biological treatment cylinder is provided with a second sewage outlet 56 corresponding to the first sludge bed area 53, and the second sewage outlet 56 is provided with a second sewage valve 57.

As shown in FIG. 5, the aerobic biological treatment device 60 comprises an aerobic biological treatment cylinder 61, a water supply mechanism 66 arranged outside the aerobic biological treatment cylinder 61, and a second water distributor 65 and an aerobic biological filler 62 arranged in the aerobic biological treatment cylinder 61, wherein the aerobic biological treatment cylinder 61 is internally provided with a third water purification area 64 positioned above the aerobic biological filler 62 and a second sludge blanket area 63 positioned below the aerobic biological filler area 62, and the second sludge blanket area 63 is communicated with the second water purification area 54 of the anaerobic biological treatment cylinder 51 of the anaerobic biological treatment device 50 through a pipeline. The second water distributor 65 is communicated with the water supply mechanism 66 through a pipeline and is arranged in the second sludge blanket area 63. The sewage from the anaerobic biological treatment apparatus 50 and the water supplied from the water supply mechanism 66 to the second water distributor 65 enter the second sludge blanket area 63 and are rapidly and uniformly mixed with the sludge blanket of the second sludge blanket area 63, and the second sludge blanket area 63 rapidly traps and adsorbs the particulate matter and colloidal matter in the sewage. Then, the sewage enters into the aerobic biological filler 62, the aerobic organisms in the aerobic biological filler 62 carry out biological treatment and purification on the sewage, then the water treated by the aerobic biological filler 62 enters into the third water purification area 64, and the water in the third water purification area 64 enters into the sand purification treatment device 70. The bottom of the aerobic biological treatment cylinder 61 is provided with a third sewage outlet 67 corresponding to the second sludge bed area 63, and the third sewage outlet 67 is provided with a third sewage valve 68.

As shown in fig. 6, the sand purification treatment device 70 includes a sand purification treatment cylinder 71, a porous filter plate 72 is provided in the sand purification treatment cylinder 71, a sand purification area 74 located above the porous filter plate 72 and a second sludge accumulation area 73 located below the porous filter plate 72 are provided in the sand purification treatment cylinder 71, and the second sludge accumulation area 73 is communicated with the third water purification area 64 through a water inlet pipe 76. The sand purifying area 74 is filled with water purifying sand doped with activated carbon for filtering and purifying water, a water purifying tank 75 is arranged at the top of the sand purifying area 74, and the water purifying tank 75 is communicated with a water purifying storage device 80 through a pipeline. The bottom end of the sand purification treatment cylinder 71 is provided with a fourth sewage discharge port 77, and the fourth sewage discharge port 77 is provided with a third sewage discharge valve 78. When the sludge in the second sludge retention area 73 is accumulated to a certain amount, the fourth blowoff valve 78 is opened so that the sludge accumulated in the second sludge retention area 73 can be discharged out of the sand purification treatment cylinder 71. In order to facilitate smooth discharge of the sludge to the outside of the sand purification treatment cylinder 71, the bottom end of the sand purification treatment cylinder 71 is tapered.

As shown in fig. 7, the purified water storage device 80 includes a purified water storage cylinder 81 communicating with the purified water tank 75, and a purified water discharging pipe 88 is provided on the purified water storage cylinder 81. The purified water storage cylinder 81 is internally provided with a second partition plate 82 and a purified water filter plate 84, the purified water storage cylinder 81 is divided into a purified water flow channel 83 and a purified water storage cavity 85 by the second partition plate 82, and the purified water filter plate 84 is positioned in the purified water storage cavity 85, is installed on the second partition plate 82, and is used for purifying and filtering the water in the purified water storage cavity 85 again. The purified water storage chamber 85 has a purified water accumulation area 87 located above the purified water filter plate 84 and communicated with the purified water discharge pipe 88, and a third sludge accumulation area 86 located below the purified water filter plate 84, wherein the third sludge accumulation area 86 is used for accumulating sludge blocked by the purified water filter plate 84. The purified water passes through the purified water filter plate 84 and then enters the purified water accumulation area 87, and the water in the purified water accumulation area 87 is conveyed to other places needing purified water through the purified water discharge pipe 88. Referring to fig. 1 again, the MBA integrated sewage treatment apparatus further includes a sludge treatment apparatus 90, and the sludge treatment apparatus 90 includes a sludge storage cylinder 91, a sludge pump 92 and a plate-and-frame filter press 93 which are sequentially communicated. Sludge storage cylinder 91 communicates first drain 45, second drain 56, third drain 67 and fourth row drain 77 to make the mud that filters out from sewage enter into sludge storage cylinder 91 in, mud pump 92 is used for pumping the mud in the sludge storage cylinder 91 to plate and frame filter press 93, plate and frame filter press 93 is used for sludge dewatering, and carry to external wrapping bag and pack, in order to make things convenient for the staff to move away mud.

Foretell MBR sewage treatment plant can effectively realize the purification treatment to sewage, but also can be with the mud of filtering out from sewage wash the packing of dehydrating, makes things convenient for the transport of staff to mud.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. MBR sewage integrated treatment equipment is characterized by comprising a water collecting tank, a sewage collecting cylinder, a neutralization reaction device, a sludge removing device, an anaerobic biological treatment device, an aerobic biological treatment device, a sand purification treatment device and a purified water storage device which are sequentially communicated; the neutralization reaction device comprises a reaction cylinder communicated with a sewage collecting cylinder and a sludge removing device, the sludge removing device comprises a sludge removing cylinder, a first partition plate and a sludge blocking frame are arranged in the sludge removing cylinder, the first partition plate divides the inner cavity of the sludge removing cylinder into a sewage flow channel and a sludge blocking purification cavity, and the sewage flow channel is communicated with the reaction cylinder; the mud blocking frame is positioned in the mud blocking purification cavity and is fixed on the first partition plate and the mud removing cylinder; the mud guard frame comprises a plurality of mud guards which are arranged in parallel, and the mud guards are obliquely arranged; the mud blocking frame divides the mud blocking purification cavity into a first sludge accumulation area positioned below the mud blocking frame and a first water purification area positioned above the mud blocking frame; the sewage flow channel is respectively communicated with a water outlet of the neutralization reaction device and the first sludge accumulation area; the bottom end of the sludge removing cylinder is provided with a first sludge discharge port corresponding to the first sludge accumulation area, and the first sludge discharge port is provided with a first sludge discharge valve; the MBR sewage integrated treatment equipment also comprises a sludge treatment device, wherein the sludge treatment device comprises a sludge storage cylinder, a sludge pump and a plate-and-frame filter press which are sequentially communicated; the sludge storage cylinder is communicated with the first sludge accumulation area.

2. The MBR integrated sewage treatment equipment according to claim 1, wherein a PAM feed port, a purifying agent feed port and an alkali feed port are arranged at the top of the reaction cylinder.

3. The MBR integrated sewage treatment equipment according to claim 2, wherein a pH value detection mechanism is arranged in the reaction cylinder.

4. The MBR integrated sewage treatment equipment according to claim 2, wherein a pH value adjusting water distributor is arranged in the reaction cylinder.

5. The MBR integrated sewage treatment equipment according to claim 2, wherein a stirring mechanism is arranged in the reaction cylinder.

6. The MBR sewage integrated treatment device of claim 2, wherein the mud guard is connected with the first partition plate and the mud removing cylinder through an elastic ring, a vibrator is arranged on the mud guard, and a waterproof cover is arranged on the mud guard corresponding to the vibrator.

7. The MBR integrated sewage treatment equipment according to claim 1, wherein the anaerobic biological treatment device comprises an anaerobic biological treatment cylinder, and a first water distributor and an anaerobic biological filler which are arranged in the anaerobic biological treatment cylinder, wherein the anaerobic biological treatment cylinder is provided with a second water purification area positioned above the anaerobic biological filler and a first sludge bed area positioned below the anaerobic biological filler area; the first water distributor is arranged in the first sludge bed area; a second sewage draining outlet is formed in the bottom of the anaerobic biological cylinder, and a second sewage draining valve is arranged on the second sewage draining outlet; the second sewage draining outlet is communicated with a sludge inlet of the sludge storage cylinder.

8. The MBR sewage integrated treatment equipment according to claim 1, wherein the aerobic biological treatment device comprises an aerobic biological treatment cylinder, a water supply mechanism arranged outside the aerobic biological treatment cylinder, and a second water distributor and an aerobic biological filler which are arranged in the aerobic biological treatment cylinder, a third water purification area positioned above the aerobic biological filler and a second sludge bed area positioned below the aerobic biological filler are arranged in the aerobic biological treatment cylinder, and the second sludge bed area is respectively communicated with a water inlet of the anaerobic biological treatment device and a sludge inlet of a sludge storage cylinder through pipelines; the second water distributor is communicated with the water supply mechanism through a pipeline and is arranged in the second sludge bed area.

9. The MBR sewage integrated treatment device of claim 1, wherein the sand purification treatment device comprises a sand purification treatment cylinder, a porous filter plate is arranged in the sand purification treatment cylinder, a sand purification area positioned above the porous filter plate and a second sludge accumulation area positioned below the porous filter plate are arranged in the sand purification treatment cylinder, purified water sand doped with activated carbon is filled in the sand purification area, a purified water tank is arranged at the top of the sand purification area, and the purified water tank is communicated with a water inlet of the purified water storage device through a pipeline; the bottom of the sand purification treatment cylinder is provided with a third sewage outlet corresponding to the second sludge accumulation area, and the third sewage outlet is provided with a third sewage valve and communicated with a sludge inlet of the sludge storage cylinder.

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