Sedimentation-tank-free low-sludge-amount assembly type sewage treatment device

Abstract

The utility model discloses a sedimentation-tank-free low-sludge-quantity assembled sewage treatment device, which relates to the field of sewage treatment and comprises a tank body, a filler component, an aeration main pipe and a sludge return pipe, the tank body comprises an anaerobic tank, a facultative tank and an aerobic tank; the anaerobic tank, the facultative tank and the aerobic tank are arranged in a concentric circle in an inner-middle-outer layered manner and are communicated through water passing holes; the aerobic tank is provided with a filler assembly, an aeration main pipe, a sludge return pipe and a partition plate; the aerobic tank is divided into a plurality of areas by partition plates, a filler assembly is arranged in each area, and each filler assembly comprises an assembly bracket, a fiber filler, a tubular aerator and an assembly aeration pipe; a water outlet pipeline is arranged in the tail end area of the aerobic tank, and water is discharged through the water outlet pipeline; according to the utility model, the installation can be quickly completed, the station construction time is shortened, the layered layout is reasonable, the material is saved, the station construction investment is saved, the aerobic tank is partitioned to enrich microorganisms, the treatment efficiency is improved, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to an assembled sewage treatment device without a sedimentation tank and with low sludge volume. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] As my country's economy continues to develop, the government has attached increasing importance to environmental protection issues. In recent years, the country has introduced a number of relevant policies, involving water pollution prevention and control, support and regulatory policies, and promoting the harmless treatment and resource utilization of sludge. However, the sewage treatment industry still has problems such as long site construction period and large construction funds; the operation generally focuses on water rather than sludge, and the operating cost is high. Utility Model Content

[0004] The purpose of the utility model is to provide a low-sludge assembled sewage treatment device without a sedimentation tank in view of the problems existing in the prior art, thereby solving the above problems.

[0005] The technical solution of the utility model is as follows:

[0006] A low-sludge assembled sewage treatment device without a sedimentation tank comprises: a tank body, a filler assembly, an aeration main pipe and a sludge return pipe; the tank body comprises: an anaerobic tank, an anaerobic tank and an aerobic tank; the anaerobic tank, the anaerobic tank and the aerobic tank are arranged in layers inside, inside and outside of concentric circles and are connected by water holes; the anaerobic tank is provided with a mixing water inlet and a stirring device; the aerobic tank is provided with a filler assembly, an aeration main pipe, a sludge return pipe and a baffle; the aerobic tank is divided into a plurality of areas by the baffle, each area is provided with a filler assembly, and the filler assembly comprises an assembly bracket, a fiber filler, a tubular aerator and an assembly aeration pipe; the terminal area of ​​the aerobic tank is provided with an outlet pipe, through which water is discharged; the sludge return pipe is connected with the anaerobic tank, the anaerobic tank and the sludge discharge pipe.

[0007] Furthermore, the pool body is assembled with prefabricated panels and has three layers, inner, middle and outer, forming three areas, which are an anaerobic pool, an anaerobic pool and an aerobic pool from the inside to the outside.

[0008] Furthermore, the water holes between the anaerobic tank and the anoxic tank and the water holes between the anoxic tank and the aerobic tank are arranged in an up-down staggered manner.

[0009] Furthermore, the anaerobic tank is provided with a mixing water inlet, and the mixing water inlet is connected with the water inlet pipe and the sludge return pipe.

[0010] Furthermore, a pipeline is provided at the bottom of the mixing water inlet and extends into the lower part of the anaerobic tank.

[0011] Furthermore, the anoxic tank is provided with a partition plate, and the partition plate is located between the water outlet holes of the anaerobic tank and the anoxic tank.

[0012] Furthermore, the aerobic pool is divided into a plurality of areas by a partition, and the plurality of areas are connected by water holes arranged on the partition, and the water holes are arranged in an up-down, left-right, and staggered manner.

[0013] Furthermore, the fiber filler is suspended on the component bracket, a tubular aerator is arranged at the bottom of the component bracket, the tubular aerator is connected to the component aeration pipe, and a valve is arranged on the component aeration pipe.

[0014] Furthermore, the aeration main pipe is located above the aerobic tank, one side of the aeration main pipe is connected to the air supply equipment, and the other side is communicated with the component aeration pipe.

[0015] Furthermore, the aerobic tank is provided with a sludge return pipe, one side of which is connected to the mixing water inlet of the anaerobic tank, a bypass pipe is provided on the facultative aerobic tank, and a valve is provided between the bypass pipe and the mixing water inlet; the other side of the sludge return pipe is connected to the sludge discharge pipe, and a valve is provided in the middle.

[0016] Compared with the existing technology, the beneficial effects of the utility model are:

[0017] 1. A low-sludge-volume assembled sewage treatment device without a sedimentation tank, comprising: a tank body, a filler assembly, an aeration main pipe and a sludge return pipe; the tank body comprises: an anaerobic tank, an anaerobic tank and an aerobic tank; the anaerobic tank, the anaerobic tank and the aerobic tank are arranged in layers inside, inside and outside of concentric circles and connected by water holes; the anaerobic tank is provided with a mixing water inlet and a stirring device; the aerobic tank is provided with a filler assembly, an aeration main pipe, a sludge return pipe and a baffle; the aerobic tank is divided into multiple areas by a baffle, and each area is provided with A filler assembly comprises a component bracket, a fiber filler, a tubular aerator and a component aeration pipe; a water outlet pipe is provided in the terminal area of ​​the aerobic tank, and water is discharged through the water outlet pipe; the sludge return pipe is connected with the anaerobic tank, the anoxic tank and the sludge discharge pipe; in the utility model, the tank body adopts an assembled assembly plate, which can be installed quickly, greatly shortening the construction period of the station; at the same time, the tank body is layered inside, inside and outside in concentric circles, and the partitions are reasonably arranged, saving materials and saving station construction investment.

[0018] 2. A low-sludge assembled sewage treatment device without sedimentation tank, in which filler component carriers are arranged in each partition of the aerobic tank, so that floccules, filamentous fungi, fungi, protozoa, metazoa and aquatic organisms can form biofilms and be enriched on the fiber fillers of the aerobic tank filler component carriers in sections, with a microbial concentration of up to 15-30 mg / L. The rear-end organisms further oxidize and reduce the metabolites of the front-end microorganisms to form a good biological ladder food chain; the suspended solids in the effluent are reduced to below 10 mg / L, and the effluent is clear and does not require a secondary sedimentation tank, which improves the treatment efficiency and saves the cost of site construction; the output of residual sludge is reduced by 95%, saving the cost of sludge drying and harmless treatment, and reducing the comprehensive operating cost per ton of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model from top view;

[0020] Figure 2 This is a schematic diagram of the top view of the aeration device of the filler assembly of the utility model;

[0021] Figure 3 It is a side view structural schematic diagram of the packing assembly of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the side structure of the anaerobic tank mixing water inlet.

[0023] Figure numerals: 1-anaerobic tank, 2-anaerobic tank, 3-aerobic tank, 4-water inlet pipe, 5-water hole, 6-water outlet pipe, 7-sludge return pipe, 8-aeration main pipe, 9-filling assembly, 10-tank body, 11-valve, 12-sludge discharge pipe, 13-stirring device; 101-mixing water inlet; 201-partition plate, 301-partition plate; 701-bypass pipe, 901-assembly bracket, 902-fiber filler, 903-tubular aerator, 904-assembly aeration pipe. DETAILED DESCRIPTION

[0024] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0026] Embodiment 1

[0027] See also Figure 1-4 , a sedimentation tank-free low-sludge assembled sewage treatment device, specifically including the following structure:

[0028] Tank body 10, filler assembly 9, aeration main pipe 8 and sludge return pipe 7;

[0029] The tank body 10 includes: an anaerobic tank 1, an anaerobic tank 2, and an aerobic tank 3; the anaerobic tank 1, the anaerobic tank 2, and the aerobic tank 3 are arranged in layers inside and outside of concentric circles, and the tank body 10 is assembled with assembled plates and connected by water holes 5; the anaerobic tank 1 is provided with a mixed water inlet 101 and a stirring device 13; the anaerobic tank 2 is provided with a partition plate 201 and a stirring device 13; the aerobic tank 3 is provided with a filler assembly 9, an aeration main pipe 8, a sludge return pipe 7 and a partition 301; the aerobic tank 3 is divided into a plurality of areas, each area is provided with a packing assembly 9, the packing assembly includes an assembly bracket 901, a fiber packing 902, a tubular aerator 903, a tubular aerator 903 and an assembly aeration pipe 904; the end area of ​​the aerobic tank 3 is provided with an outlet pipe 6, so the sewage treatment device proposed in this embodiment is without a secondary sedimentation tank for sedimentation and separation; the sludge return pipe 7 is connected with the anaerobic tank 1, the anoxic tank 2, and the sludge discharge pipe 12.

[0030] In this embodiment, specifically, the anaerobic tank 1, the facultative aerobic tank 2, and the aerobic tank 3 are distributed in concentric circles, and the tank body 10 is assembled with prefabricated panels and has three layers, namely, the anaerobic tank 1, the facultative aerobic tank 2, and the aerobic tank 3, from the inside to the outside;

[0031] The water holes 5 between the anaerobic tank 1 and the anoxic tank 2 and the water holes 5 between the anoxic tank 2 and the aerobic tank 3 are arranged in an up-down staggered manner; that is, the water holes 5 in the inner and middle layers of the tank body 10 are arranged in an up-down staggered manner, and there are no water holes 5 in the outer layer; the assembled assembly plate can be made of enamel, carbon steel, stainless steel and other materials; the tank body 10 can be installed quickly, greatly shortening the construction period of the station; the tank body 10 is layered inside, inside and outside in concentric circles, with a reasonable layout and partitioning, saving materials and saving station construction costs.

[0032] In this embodiment, specifically, the terminal area of ​​the aerobic tank 3 is provided with an outlet pipe 6, and the suspended solids in the outlet water are reduced to below 10 mg / L, and there is no need for sedimentation and separation in a secondary sedimentation tank.

[0033] In this embodiment, specifically, the anaerobic tank 1 is provided with a mixing water inlet 101 , and the mixing water inlet 101 is connected with the water inlet pipe 4 and the sludge return pipe 7 .

[0034] In this embodiment, specifically, a pipe is provided at the bottom of the mixing water inlet 101 , and penetrates into the lower middle part of the anaerobic tank 1 .

[0035] In this embodiment, specifically, the anoxic tank 2 is provided with a partition plate 201, the partition plate 201 has no water holes 5, and is located between the water outlet holes 5 of the anaerobic tank 1 and the anoxic tank 2. The partition plate 201 can prevent the water flow in the anoxic tank 2 from short-circuiting.

[0036] In this embodiment, specifically, a stirring device 13 is provided in the anaerobic tank 1 and the facultative aerobic tank 2 to form a continuous circulating water flow, effectively maintain the mixed liquid in a suspended state, and fully mix the activated sludge with the influent.

[0037] In this embodiment, specifically, the aerobic pool 3 is divided into multiple areas by the partition 301, which are connected by the water holes 5 set on the partition 301. Except that the partitions in the head and tail areas have no water holes 5, the water holes 5 are staggered up and down and left and right, so that the water flow in the aerobic pool 3 is deflected.

[0038] In this embodiment, specifically, the aerobic pool 3 is divided into a plurality of areas, each of which is provided with a packing assembly 9, including an assembly bracket 901, a fiber packing 902, a tubular aerator 903, and an assembly aeration pipe 904; the fiber packing 902 is hung on the assembly bracket 901, a tubular aerator 903 is provided at the bottom of the assembly bracket 901 and is connected to the assembly aeration pipe 904, and a valve 11 is provided on the assembly aeration pipe 904;

[0039] A filler assembly 9 is arranged in each area of ​​the aerobic pool 3, so that flocs, filamentous fungi, fungi, protozoa, metazoa and aquatic organisms can form biofilms and be enriched on the carrier fiber filler 902 of the filler assembly 9 in sections, and the microbial concentration can reach 15-30 mg / L. The rear-end organisms further oxidize and reduce the metabolites of the front-end microorganisms to form a good biological ladder food chain; the suspended solids in the effluent are reduced to below 10 mg / L, and the effluent is clear and does not require precipitation in a secondary sedimentation tank; the output of residual sludge is reduced by 95%, saving the cost of sludge drying and harmless treatment, and reducing the comprehensive operating cost per ton of water.

[0040] In this embodiment, specifically, the aeration main pipe 8 is located above the aerobic pool 3 , one side of the aeration main pipe 8 is connected to the air supply device, and the other side is connected to the component aeration pipe 904 , thereby ensuring the oxygen supply of the filler component 9 of the aerobic pool 3 .

[0041] In this embodiment, specifically, the aerobic tank 3 is provided with a sludge return pipe 7, one side of which is connected to the mixing water inlet 101 of the anaerobic tank 1, and a bypass pipe 701 is provided on the facultative aerobic tank 2, and a valve 11 is provided between the bypass pipe 701 and the mixing water inlet 101; one side is connected to the sludge discharge pipe 12, and a valve 11 is provided in the middle. The sludge return pipe 7 ensures the balance of the sludge amount in the system.

[0042] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

[0043] This background technology section is provided to generally present the context of the present invention, and the work of the currently named inventors, the work to the extent described in this background technology section, and aspects of this section that did not constitute prior art at the time of application are neither explicitly nor implicitly admitted to be prior art of the present invention.

Claims

1. A low-sludge assembled sewage treatment device without a sedimentation tank, characterized in that: include: A tank body (10), a filler assembly (9), an aeration main pipe (8) and a sludge return pipe (7); The tank body (10) comprises: an anaerobic tank (1), an anaerobic tank (2), and an aerobic tank (3); the anaerobic tank (1), the anaerobic tank (2), and the aerobic tank (3) are arranged in layers in the form of concentric circles, and are connected by water holes (5); the anaerobic tank (1) is provided with a mixing water inlet (101) and a stirring device (13); the aerobic tank (3) is provided with a filler assembly (9), an aeration main pipe (8), a sludge return pipe (7), and a baffle (301); the aerobic tank ( 3) is divided into a plurality of areas by a partition (301), each area is provided with a filler assembly (9), the filler assembly (9) comprising an assembly support (901), a fiber filler (902), a tubular aerator (903) and an assembly aeration pipe (904); the end area of ​​the aerobic tank (3) is provided with an outlet pipe (6), and water is discharged through the outlet pipe (6); the sludge return pipe (7) is connected with the anaerobic tank (1), the facultative aerobic tank (2) and the sludge discharge pipe (12).

2. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1 is characterized in that: The tank body (10) is composed of assembled panels and has three layers, inner, middle and outer, forming three areas, which are, from the inner to the outer, an anaerobic tank (1), an anaerobic tank (2) and an aerobic tank (3).

3. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 2 is characterized in that: The water holes (5) between the anaerobic tank (1) and the anoxic tank (2) and the water holes (5) between the anoxic tank (2) and the aerobic tank (3) are arranged in an up-down staggered manner.

4. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1 is characterized in that: The anaerobic tank (1) is provided with a mixing water inlet (101), and the mixing water inlet (101) is connected to the water inlet pipe (4) and the sludge return pipe (7).

5. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 4 is characterized in that: The bottom of the mixing water inlet (101) is provided with a pipeline which penetrates into the lower middle part of the anaerobic tank (1).

6. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1 is characterized in that: The anoxic tank (2) is provided with a partition plate (201), and the partition plate (201) is located between the water outlet holes (5) of the anaerobic tank (1) and the anoxic tank (2).

7. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1 is characterized in that: The aerobic pool (3) is divided into a plurality of areas by a partition (301), and the plurality of areas are connected by water holes (5) arranged on the partition (301), and the water holes (5) are arranged in an up-down, left-right staggered manner.

8. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1 is characterized in that: The fiber filler (902) is suspended on the component support (901), and a tubular aerator (903) is arranged at the bottom of the component support (901). The tubular aerator (903) is connected to the component aeration pipe (904), and a valve (11) is arranged on the component aeration pipe (904).

9. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1 is characterized in that: The aeration main pipe (8) is located above the aerobic tank (3), one side of the aeration main pipe (8) is connected to the air supply equipment, and the other side is communicated with the component aeration pipe (904).

10. The low-sludge-volume assembled sewage treatment device without a sedimentation tank according to claim 1, characterized in that: The aerobic tank (3) is provided with a sludge return pipe (7), one side of which is connected to the mixing water inlet (101) of the anaerobic tank (1), a bypass pipe (701) is provided on the facultative aerobic tank (2), and a valve (11) is provided between the bypass pipe (701) and the mixing water inlet (101); the other side of the sludge return pipe (7) is connected to the sludge discharge pipe (12), and a valve (11) is provided in the middle.

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