Integrated secondary biochemical treatment system

Abstract

The utility model belongs to the field of sewage treatment systems of municipal sewage treatment plants, and provides a production-science-research integrated two-stage biochemical treatment system which sequentially comprises a biochemical pool, a visiting inspection area, a secondary sedimentation tank and a wetland research area from bottom to top, the biochemical pool comprises a water inlet distribution area, a selection area, an anaerobic area, an anoxic area, an aerobic area and a water outlet lifting area; the visiting inspection area comprises a comprehensive landscape area, a parking area, a deodorization area and a pipe gallery maintenance and science popularization layer; the secondary sedimentation tank comprises a secondary sedimentation tank water distribution area, a secondary sedimentation tank treatment area and a secondary sedimentation tank water outlet area, and the secondary sedimentation tank water distribution area is communicated with the water outlet lifting area. The system adopts a stacked structure, reasonably utilizes vertical and plane space layout, greatly improves the land utilization rate, has the functions of sewage secondary biochemical treatment, sewage treatment environmental protection knowledge science popularization, sewage treatment experiment research, landscape rest, parking, deodorization treatment and the like, and can be widely applied to the field of sewage treatment systems of municipal sewage treatment plants.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment systems of municipal sewage treatment plants, and specifically relates to an integrated secondary biochemical treatment system. Background Art

[0002] The biochemical secondary treatment system is a common process treatment unit of a sewage treatment plant. Conventional secondary biochemical treatment units are composed of two treatment units: a biochemical tank and a secondary sedimentation tank, and are usually arranged in a plane. With the continuous improvement of sewage treatment process requirements, the increase in the coefficient of variation, the increase in the retention time of the biochemical tank, and the reduction in the surface hydraulic load of the secondary sedimentation tank, the area occupied by the secondary treatment unit has increased. Urban sewage treatment plants are often located around cities, serving urban sewage treatment, and urban land is tight; saving land has become a new influencing factor in the renovation and expansion of urban sewage treatment plants. At the same time, urban sewage treatment plants are not only used for sewage treatment, but now often also have the functions of popularizing environmental protection knowledge and experimental research, which has a good role in promoting the improvement of citizens' environmental awareness and environmental literacy; it provides convenience for major scientific research institutions to conduct pilot tests in sewage treatment plants. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides an "industry-university-research" integrated secondary biochemical treatment system, which has the functions of secondary biochemical treatment of sewage, popularization of environmental protection knowledge of sewage treatment, experimental research on sewage treatment, landscape rest, parking and deodorization treatment.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an integrated two-stage biochemical treatment system, which includes, from bottom to top, a biochemical pool, a visit and inspection area, a secondary sedimentation tank, and a wetland research area;

[0005] The biochemical pool includes an inlet distribution area, a selection area, an anaerobic area, an anoxic area, an aerobic area, and an outlet lifting area;

[0006] The inspection area includes a comprehensive landscape area, a parking area, a deodorization area, a pipe gallery inspection and a science floor;

[0007] The secondary sedimentation tank comprises a secondary sedimentation tank water distribution area, a secondary sedimentation tank treatment area, and a secondary sedimentation tank outlet area. The secondary sedimentation tank water distribution area is connected to the outlet water lifting area.

[0008] Preferably, the water inlet distribution area, the selection area, the anaerobic area, and the anoxic area together constitute a foundation; the comprehensive landscape area, the parking area, and the deodorization area are located above the foundation; and the pipeline gallery maintenance and science popularization layer is located above the aerobic area.

[0009] Preferably, the inspection area is designed to be 0.3 to 0.5 m above the ground.

[0010] Preferably, the comprehensive landscape area is covered with soil at a depth of 1.2 to 1.6 m.

[0011] Preferably, the pipeline gallery maintenance and science popularization floor has a clearance of 3 to 5 meters.

[0012] Preferably, the secondary sedimentation tank is located above the pipeline gallery maintenance and science popularization layer.

[0013] Preferably, the wetland research area is located above the secondary sedimentation tank treatment area.

[0014] Preferably, the clearance between the wetland research area and the secondary sedimentation tank is 3 to 4 meters.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides an integrated secondary biochemical treatment system, which is mainly divided into four layers from bottom to top: a biochemical pool, a visit and inspection area, a secondary sedimentation tank and a wetland research area. It adopts a stacked structure, rationally utilizes the vertical and planar space layout, greatly improves the land utilization rate, and simultaneously has the functions of secondary biochemical treatment of sewage, popularization of environmental protection knowledge of sewage treatment, experimental research on sewage treatment, landscape rest, parking and deodorization treatment, etc., and can be widely used in the field of sewage treatment systems of municipal sewage treatment plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic side view of the structure of an integrated two-stage biochemical treatment system provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the top view of a biochemical pool of an integrated two-stage biochemical treatment system provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the top view of the inspection area of ​​an integrated secondary biochemical treatment system provided by an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the top view of the secondary sedimentation tank of an integrated secondary biochemical treatment system provided by an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the top view of a wetland research area of ​​an integrated secondary biochemical treatment system provided by an embodiment of the utility model;

[0022] Figure 6 A schematic diagram of a production line process of an integrated secondary biochemical treatment system provided by an embodiment of the utility model;

[0023] Figure 7A schematic diagram of a science tour line flow chart of an integrated secondary biochemical treatment system provided by an embodiment of the utility model;

[0024] Figure 8 A schematic diagram of the experimental research line flow of an integrated secondary biochemical treatment system provided in an embodiment of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Biochemical pool;

[0027] 101. Inlet distribution area; 102. Selection area; 103. Anaerobic area; 104. Anoxic area; 105. Aerobic area; 106. Outlet lifting area;

[0028] 2. Visit the inspection area;

[0029] 201, comprehensive landscape area; 202, parking area; 203, deodorization area; 204, pipeline gallery maintenance and science popularization layer;

[0030] 3. Secondary sedimentation tank;

[0031] 301. Secondary sedimentation tank water distribution area; 302. Secondary sedimentation tank treatment area; 303. Secondary sedimentation tank outlet area;

[0032] 4. Wetland research area; 5. Production line process; 6. Science and technology tour line process; 7. Experimental research line process. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0034] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0035] Example 1

[0036] like Figure 1-5 As shown, this embodiment provides an "industry-university-research" integrated secondary biochemical treatment system, which adopts a stacked structural system and includes, from bottom to top, a biochemical pool 1, a visiting and inspection area 2, a secondary sedimentation tank 3, and a wetland research area 4.

[0037] The biochemical pool 1 can be provided with two units, each unit including an inlet distribution area 101, a selection area 102, an anaerobic area 103, an anoxic area 104, an aerobic area 105, and an outlet lifting area 106 which are connected in sequence. The residence time of each area meets the requirements of the current specifications. Partition walls are provided between the areas, and water is inlet and outlet through holes.

[0038] The design elevation of the inspection area 2 is 0.3-0.5m above the ground. The inspection area 2 can be set up with two units, each of which includes a comprehensive landscape area 201, a parking area 202, a deodorization area 203, and a pipe gallery maintenance and science layer 204. The comprehensive landscape area 201 is covered with 1.2-1.6m of soil. The comprehensive landscape area 201 can be designed for landscaping and greening. Combined with the sponge design concept, the runoff coefficient is reduced, and the landscape environment of the sewage treatment plant is improved to achieve a deindustrialization effect. The parking area 202 can be equipped with parking spaces according to demand. The deodorization area 203 is mainly used for the collection and treatment of odor in the biochemical pool. The mezzanine clearance of the pipe gallery maintenance and science layer 204 is 3-5m. Its main function is to meet the daily maintenance and inspection of the aerobic zone equipment. The maintenance vehicle passage route is set inside, and the operation and maintenance personnel can operate the forklift for inspection; second, the load-bearing partition wall can be decorated with environmental protection science in this space, so as to achieve the effect of environmental protection publicity and science without affecting the inspection.

[0039] Among them, the water inlet distribution area 101, the selection area 102, the anaerobic area 103, and the anoxic area 104 together constitute a foundation; the comprehensive landscape area 201, the parking area 202, and the deodorization area 203 are located above the foundation; the pipeline corridor maintenance and science popularization layer 204 is located above the aerobic area 105.

[0040] The secondary sedimentation tank 3 can adopt 10 to 20 groups of rectangular secondary sedimentation tanks. The secondary sedimentation tank 3 is located above the pipe gallery maintenance and popular science layer 204. The secondary sedimentation tank 3 can be set up with two units, each of which includes a secondary sedimentation tank water distribution area 301, a secondary sedimentation tank treatment area 302, and a secondary sedimentation tank outlet area 303 that are connected in sequence. The retention time and surface hydraulic load of each area meet the requirements of the current specifications. Partition walls are set between each area, and holes are used for water inlet and outlet. The secondary sedimentation tank water distribution area 301 is connected to the outlet lifting area 106, and the sewage in the outlet lifting area 106 can enter the secondary sedimentation tank water distribution area 301 after being pressurized.

[0041] The wetland research area 4 is located above the secondary sedimentation tank treatment area 302. The wetland research area 4 and the secondary sedimentation tank 3 have a clearance of 3 to 4 meters. 1% to 3% of the effluent from the secondary sedimentation tank effluent area 303 is lifted to the wetland research area 4. Through different forms of pilot wetland patterns, wetland treatment experiments are studied. At the same time, an ecological floating island is formed above the secondary sedimentation tank, and the remaining effluent from the secondary sedimentation tank effluent area 303 is subsequently deeply treated.

[0042] Based on the above structure, the "industry-university-research" integrated secondary biochemical treatment system provided in this embodiment can be used for secondary biochemical treatment of sewage, popularization of environmental protection knowledge of sewage treatment, and experimental research on sewage treatment.

[0043] Specifically, when used for secondary biological treatment of sewage, such as Figure 6 As shown, the production line process is: pre-treatment of incoming water - water distribution area 101 - selection area 102 - anaerobic area 103 - anoxic area 104 - aerobic area 105 - effluent lifting area 106 - secondary sedimentation tank water distribution area 301 - secondary sedimentation tank treatment area 302 - secondary sedimentation tank effluent area 303 - deep treatment area.

[0044] When used for popularizing environmental knowledge on sewage treatment, such as Figure 7 As shown, the process of the science tour line is: comprehensive landscape area 201 - pipeline corridor maintenance and science layer 204 - wetland research area 4.

[0045] When used in sewage treatment experiments, such as Figure 8 As shown, the experimental research line process is: secondary sedimentation tank effluent area 303 - wetland research area 4.

[0046] In summary, the "industry-university-research" integrated secondary biochemical treatment system provided in this embodiment is mainly divided into four layers from bottom to top: the sewage treatment area (the biochemical pool 1), the visit and inspection area 2, the sewage treatment area (the secondary sedimentation tank 3) and the wetland research area 4. It adopts a stacked structure and rationally utilizes the vertical and plane space layout to greatly improve the land utilization rate. At the same time, it has the functions of secondary biochemical treatment of sewage, popularization of environmental protection knowledge of sewage treatment, experimental research on sewage treatment, landscape rest, parking and deodorization treatment, etc., and can be widely used in the field of sewage treatment systems of municipal sewage treatment plants.

[0047] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0048] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0049] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An integrated secondary biochemical treatment system, characterized in that: From bottom to top, it includes the biochemical pool (1), the inspection area (2), the secondary sedimentation tank (3), and the wetland research area (4); The biochemical pool (1) comprises an inlet distribution area (101), a selection area (102), an anaerobic area (103), an anoxic area (104), an aerobic area (105), and an outlet lifting area (106); The visiting and inspection area (2) includes a comprehensive landscape area (201), a parking area (202), a deodorization area (203), a pipe gallery maintenance and science popularization layer (204); The secondary sedimentation tank (3) comprises a secondary sedimentation tank water distribution area (301), a secondary sedimentation tank treatment area (302), and a secondary sedimentation tank effluent area (303), and the secondary sedimentation tank water distribution area (301) is connected to the effluent lifting area (106).

2. An integrated secondary biochemical treatment system according to claim 1, characterized in that: The water inlet distribution area (101), the selection area (102), the anaerobic area (103), and the anoxic area (104) together form a foundation; the comprehensive landscape area (201), the parking area (202), and the deodorization area (203) are located above the foundation; and the pipe gallery maintenance and science popularization layer (204) is located above the aerobic area (105).

3. The integrated two-stage biochemical treatment system according to claim 1, characterized in that: The design elevation of the visiting and inspection area (2) is 0.3 to 0.5 m above the ground.

4. The integrated two-stage biochemical treatment system according to claim 1, characterized in that: The comprehensive landscape area (201) is covered with soil of 1.2 to 1.6 m.

5. The integrated two-stage biochemical treatment system according to claim 1, characterized in that: The pipeline gallery maintenance and science popularization layer (204) has a clearance of 3 to 5 meters.

6. The integrated two-stage biochemical treatment system according to claim 1, characterized in that: The secondary sedimentation tank (3) is located above the pipeline gallery maintenance and science popularization layer (204).

7. The integrated two-stage biochemical treatment system according to claim 1, characterized in that: The wetland research area (4) is located above the secondary sedimentation tank treatment area (302).

8. The integrated two-stage biochemical treatment system according to claim 1, characterized in that: The clearance between the wetland research area (4) and the secondary sedimentation tank (3) is 3 to 4 meters.

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