Combined sewage advanced treatment system

Abstract

The utility model belongs to the field of sewage treatment of municipal sewage treatment plants, and provides a combined sewage advanced treatment system, which comprises a contact disinfection tank, a sewage treatment tank, a sewage treatment tank, a sewage treatment tank, a sewage treatment tank and a sewage treatment tank, and is characterized in that the contact disinfection tank comprises a water inlet area, a metering area and a water outlet area; the filter tank is communicated with the water inlet area; the sedimentation tank is communicated with the filter tank; and the dosing room is arranged above the contact disinfection tank. Water flow in the contact disinfection area in the system can flow from one end close to the water inlet area to one end close to the water outlet area, then flows back to one end close to the water inlet area in the metering area, finally flows to the water outlet area through the metering area, and flows back and forth in different directions in the area, so that the turbulence effect is improved, the mixing is more uniform, and the space can be fully utilized; a flowing path is prolonged, so that the disinfection treatment effect is improved. The dosing room is arranged above the contact disinfection tank, a plane combination and vertical stacking structure is adopted, the intensive design is adopted, and the occupied area is small. And the length of the dosing pipeline can be shortened, the lift of the dosing pump is reduced, and the power consumption is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to municipal sewage treatment field, concretely relates to a combined sewage advanced treatment system. BACKGROUND

[0002] The advanced treatment system is a common sewage treatment plant process treatment unit, which mainly treats secondary treatment effluent so that it reaches the effluent standard. The conventional advanced treatment unit is divided into a sedimentation tank, a filter tank and a disinfection tank. The plane is usually arranged in a dispersed manner. The municipal sewage treatment plant is often located in the periphery of the city and serves the municipal sewage treatment. With the continuous improvement of the sewage treatment process requirements, the land is tight in the city, and the land saving becomes an important influencing factor in the process of the municipal sewage treatment plant reconstruction and expansion. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the utility model provides a combined sewage advanced treatment system, which arranges sewage treatment units in groups, reasonably divides and arranges, maximally utilizes the plane space, and reduces the waste of land resources. At the same time, the dosing room mainly serves the sedimentation tank and the contact disinfection tank, and the group arrangement can also shorten the length of the dosing pipeline, reduce the lift of the dosing pump, and save the power consumption.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: a combined sewage advanced treatment system, comprising:

[0005] The contact disinfection tank comprises a water inlet area, a metering area, a water outlet area and at least two contact disinfection areas, the metering area and the contact disinfection area are located between the water inlet area and the water outlet area, and the two contact disinfection areas are located on the two sides of the metering area, a flow guide wall is arranged in the contact disinfection area, one end of the contact disinfection area close to the water outlet area is communicated with the other end of the metering area close to the water inlet area through a backflow area, the other end of the contact disinfection area is communicated with the water inlet area, and the metering area is communicated with the water outlet area;

[0006] The filter tank is communicated with the water inlet area;

[0007] The sedimentation tank is communicated with the filter tank;

[0008] The dosing room is arranged above the contact disinfection tank.

[0009] As preferred, the system further comprises an ultraviolet disinfection tank, and the ultraviolet disinfection tank is arranged between the filter tank and the water inlet area.

[0010] As preferred, the system further comprises a tail water pump house, and the tail water pump house is connected with the water outlet area.

[0011] As preferred, the system further comprises a reclaimed water pump house connected with the water outlet area.

[0012] As preferred, the system further comprises a water quality online monitoring house connected with the water outlet area.

[0013] As preferred, the system further comprises a tool house for providing machine repair tools.

[0014] As preferred, the floor in the dosing room is 0.5-1.0 m higher than the floor outside.

[0015] As preferred, the sedimentation tank is one of a high-efficiency sedimentation tank, a magnetic coagulation high-efficiency sedimentation tank and a sand-adding high-efficiency sedimentation tank.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The combined sewage advanced treatment system can make the water flow in the contact disinfection area flow from the end close to the water inlet area to the end close to the water outlet area, then backflow to the end close to the water inlet area in the metering area, and finally flow to the water outlet area through the metering area, so that the water flow reciprocates in different directions in the predetermined area, the turbulence effect is improved, the mixing is more uniform, the space can be fully utilized, the flow path is prolonged, and the disinfection treatment effect is improved.

[0018] 2. The combined sewage advanced treatment system sets the dosing room above the contact disinfection tank, adopts a plane combination + vertical stack structure, is intensively designed, and has a small land occupation area. The length of the dosing pipeline can be shortened, the lift of the dosing pump can be reduced, and the power consumption can be saved.

[0019] 3. The combined sewage advanced treatment system can be applied to most sewage treatment plants and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 2 is a lower layer plan view structural schematic diagram of the combined sewage advanced treatment system according to the utility model embodiment;

[0021] Figure 2 Fig. 3 is an upper layer plan view structural schematic diagram of the combined sewage advanced treatment system according to the utility model embodiment;

[0022] Figure 3 Fig. 4 is a flow direction structural schematic diagram of the combined sewage advanced treatment system according to the utility model embodiment;

[0023] Figure 4 Fig. 5 is a side view structural schematic diagram of the combined sewage advanced treatment system according to the utility model embodiment.

[0024] Figure 5 Fig. 1 is a top view of a contact disinfection pool of a combined sewage advanced treatment system according to an embodiment of the present application;

[0025] Figure 6 Fig. 2 is another top view of a contact disinfection pool of a combined sewage advanced treatment system according to an embodiment of the present application;

[0026] Figure 7 Fig. 3 is a side view of a contact disinfection pool of a combined sewage advanced treatment system according to an embodiment of the present application;

[0027] Figure 8 Fig. 4 is another side view of a contact disinfection pool of a combined sewage advanced treatment system according to an embodiment of the present application;

[0028] Figure 9 Fig. 5 is a top view of a dosing room and related parts of a combined sewage advanced treatment system according to an embodiment of the present application;

[0029] Figure 10 Fig. 6 is a side view of a dosing room and related parts of a combined sewage advanced treatment system according to an embodiment of the present application.

[0030] In the drawings, the components represented by the numbers are listed as follows:

[0031] 1, sedimentation tank; 2, filter tank; 3, contact disinfection pool; 301, water inlet area; 302, metering area; 303, water outlet area; 304, contact disinfection area; 305, reflux area; 306, flow guide wall; 4, dosing room; 5, ultraviolet disinfection pool; 6, tail water pump house; 7, recycled water pump house; 8, water quality online monitoring house; 9, tool house; 10, storage tank; 11, fence; 12, liquid level sensor. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to specific embodiments, so that those skilled in the art can more clearly understand the present application.

[0033] It should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally formed. For those skilled in the art, the specific meaning of such terms in this patent can be understood according to the specific circumstances.

[0034] Embodiment 1

[0035] The embodiment provides a combined sewage advanced treatment system, which comprises:

[0036] The contact disinfection tank 3 comprises an inlet water area 301, a metering area 302, an outlet water area 303 and two contact disinfection areas 304. The metering area 302 and the two contact disinfection areas 304 are located between the inlet water area 301 and the outlet water area 303, and the two contact disinfection areas 304 are located on the two sides of the metering area 302 respectively. A flow guide wall 306 is arranged in the contact disinfection area 304. The contact disinfection area 304 is in communication with the metering area 302 near the inlet water area 301, and the other end of the contact disinfection area 304 is in communication with the inlet water area 301. The metering area 302 is in communication with the outlet water area 303.

[0037] For example, referring to Figure 1 The inlet water area 301 and the outlet water area 303 are located at the two ends of the contact disinfection tank 3 respectively, the contact disinfection area 304 extends from the inlet water area 301 to the outlet water area 303, and the flow guide wall 306 is arranged in the contact disinfection area 304. The bottom end of the flow guide wall 306 is provided with a through hole, and the flow guide wall 306 is parallel to the width direction of the contact disinfection area 304, so that an S-shaped flow channel is formed in the contact disinfection area 304. Meanwhile, the metering area 302 extends from the inlet water area 301 to the outlet water area 303, and the end of the contact disinfection area 304 near the outlet water area 303 is in communication with the end of the metering area 302 near the inlet water area 301 through the backflow area 305. Referring to Figure 3 When the water flow in the contact disinfection area 304 flows along the S-shaped flow channel to the end near the outlet water area 303, it needs to turn around and enter the backflow area 305, and then flow into the metering area 302, so as to form a multi-directional reciprocating flow.

[0038] The inlet water area 301 and the contact disinfection area 304 are in communication through the hole in the side wall, and the hole is provided with a gate. Similarly, the contact disinfection area 304 and the backflow area 305 are in communication through the hole in the side wall, and the hole is provided with a gate. The backflow area 305 and the metering area 302 are in communication through the hole in the side wall, and the hole is provided with a gate. The metering area 302 and the outlet water area 303 are in communication through the hole in the side wall, and the hole is provided with a gate. The metering area 302 can adopt a bus metering tank or use an electromagnetic flowmeter for metering.

[0039] The filter tank 2 is in communication with the inlet water area 301.

[0040] The sedimentation tank 1 is in communication with the filter tank 2.

[0041] For example, referring to Figure 1The sedimentation tank 1 is located on one side of the water inlet area 301, and the filter tank 2 is located on one side of the sedimentation tank 1. Among them, if the sedimentation tank 1 is combined with the filter tank 2, a hole can be opened on the side wall for communication. When the sedimentation tank 1 and the filter tank 2 are constructed separately, they can be connected through pipes or channels. The sedimentation tank 1 can be one of an efficient sedimentation tank, a magnetic coagulation efficient sedimentation tank, and a sand addition efficient sedimentation tank. The filter tank 2 can use a filter cloth filter or a precision filter.

[0042] The dosing room 4 is arranged above the contact disinfection tank 3.

[0043] For example, referring to Figure 2 、 Figure 4 The dosing room 4 stores main reagents in the plant area, such as PAC, PAM, sodium acetate, and efficient tank medium (sand or magnetic powder). The reagent line process is that PAC and PAM are added to the sedimentation tank 1, sodium hypochlorite is added to the contact disinfection area 304, and efficient tank medium (sand or magnetic powder) is added to the sedimentation tank 1. The indoor floor of the dosing room 4 can be 0.5-1.0 m higher than the outdoor floor elevation.

[0044] Based on the above structure, the secondary treated water first enters the sedimentation tank 1 and the filter tank 2, then enters the water inlet area 301, and is then divided into two contact disinfection areas 304, and then flows into the metering area 302 through the backflow area 305 for metering, and finally flows into the water outlet area 303.

[0045] Among them, the water flow in the contact disinfection area 304 can flow from the end close to the water inlet area 301 to the end close to the water outlet area 303, and then backflow to the end close to the water inlet area 301 in the metering area 302, and finally flow from the metering area 302 to the water outlet area 303, reciprocating in different directions in the predetermined area, improving the turbulent effect and mixing more uniformly, and also making full use of space, extending the flow path, and thus improving the disinfection treatment effect.

[0046] The dosing room 4 is arranged above the contact disinfection tank 3, which adopts a planar combination + vertical stacking structure, intensive design, and small land occupation. It can also shorten the length of the dosing pipe, reduce the lift of the dosing pump, and save power consumption.

[0047] In some embodiments, the flow guide wall 306 can be inclined, that is, it has a certain angle with the width direction of the contact disinfection area 304, as shown in Figure 5 The mixing effect is good.

[0048] In some embodiments, the flow guide wall 306 can be a wave-shaped structure, as shown in Figure 6 The mixing effect is good.

[0049] In some embodiments, the contact disinfection area 304 can include upper and lower contact disinfection areas, as shown in Figure 7As shown, the lower layer is the water inlet, the upper layer is the water outlet, and the metering area 302 is connected. The guide walls 306 are arranged alternately on the left and right sides in both the upper and lower layers. That is, one guide wall 306 is connected to the left inner wall, and the adjacent guide wall 306 is connected to the right inner wall, so that the internal water flow is in an S-shape from left to right, and the mixing effect is better.

[0050] In some embodiments, the contact disinfection area 304 may include upper and lower contact disinfection areas, such as... Figure 8 As shown, the lower layer is the water inlet, the upper layer is the water outlet, and the metering area 302 is connected. The guide walls 306 are arranged alternately in the upper and lower layers. That is, one guide wall 306 is connected to the inner bottom plate, and the adjacent guide wall 306 is connected to the inner top plate, so that the internal water flow is in an S-shaped pattern, and the mixing effect is better.

[0051] The combined wastewater deep treatment system provided in this embodiment also includes an ultraviolet disinfection tank 5, which is located between the filter tank 2 and the inlet zone 301.

[0052] For example, see Figure 1 The ultraviolet disinfection tank 5 is in contact with both the filter tank 2 and the inlet water area 301, and can be connected by openings in its side wall. When the ultraviolet disinfection tank 5 is constructed separately from the filter tank 2 or the inlet water area 301, they can be connected by pipes or channels. The ultraviolet disinfection tank 5 can be selectively installed according to actual conditions.

[0053] The combined wastewater deep treatment system provided in this embodiment also includes a tailwater pumping station 6, which is connected to the effluent zone 303.

[0054] For example, see Figure 1 Tailwater pumping station 6 is located on one side of effluent zone 303. The inlet of the booster pump in tailwater pumping station 6 extends into effluent zone 303 via a pipeline. When the downstream area of ​​the water flow is higher than effluent zone 303, tailwater can be lifted and discharged through the booster pump in tailwater pumping station 6. When the downstream area of ​​the water flow is lower than effluent zone 303, gravity flow can be used for discharge.

[0055] The combined wastewater deep treatment system provided in this embodiment also includes a recycled water pumping station 7, which is connected to the effluent zone 303.

[0056] For example, see Figure 1 The recycled water pumping station 7 is located on one side of the effluent area 303, and the inlet of the recycled water pump in the recycled water pumping station 7 extends into the effluent area 303 through a pipeline. When reuse is required, the treated water can be used for plant-wide reclaimed water reuse through the recycled water pump in the recycled water pumping station 7.

[0057] The combined wastewater deep treatment system provided in this embodiment also includes an online water quality monitoring room 8, which is connected to the effluent zone 303.

[0058] For example, referring to Figure 1 The water quality on-line monitoring room 8 is arranged at one side of the effluent area 303, and the inlet of the monitoring device in the water quality on-line monitoring room 8 extends to the effluent area 303 through a pipeline. The water quality in the effluent area 303 can be monitored through the monitoring device.

[0059] The combined sewage advanced treatment system provided by the embodiment further comprises a tool room 9.

[0060] For example, referring to Figure 1 The tool room 9 is arranged at one side of the contact disinfection tank 3, and is used for providing repair tools.

[0061] Embodiment 2

[0062] On the basis of the embodiment 1, in the embodiment, the dosing room 4 is provided with a storage tank 10 and a surrounding wall 11, and the storage tank 10 is arranged on the inner side of the surrounding wall 11.

[0063] For example, referring to Figures 9-10 The dosing room 4 is provided with four storage tanks 10, and the four storage tanks 10 are all arranged on the inner side of the surrounding wall 11. If one of the storage tanks 10 leaks, the surrounding wall 11 can prevent the liquid from spreading and avoid that a worker is touched by the leaked liquid.

[0064] A slope is arranged on the ground on the inner side of the surrounding wall 11, and a liquid level sensor 12 is arranged at the bottom of the slope. When one of the storage tanks 10 leaks, the leaked liquid will flow to the lowest point along the slope, and the liquid level sensor 12 will send an alarm when the liquid is detected, so as to remind the worker.

[0065] In the utility model, the mechanisms, components and parts which are not described in the specific structure are all the existing structures which already exist in the prior art. They can be directly purchased from the market.

[0066] In the description of the utility model, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, a specific orientation structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0067] The above merely is the preferred implementation of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A combined wastewater advanced treatment system, characterized in that, The system comprises: a contact disinfection tank (3) comprising a water inlet area (301), a metering area (302), a water outlet area (303), and at least two contact disinfection areas (304), the metering area (302) and the contact disinfection areas (304) being located between the water inlet area (301) and the water outlet area (303), and the two contact disinfection areas (304) being located on the two sides of the metering area (302) respectively, a flow guide wall (306) being arranged in the contact disinfection area (304), the contact disinfection area (304) being in communication with the metering area (302) near the water inlet area (301), and the other end of the contact disinfection area (304) being in communication with the water inlet area (301), the metering area (302) being in communication with the water outlet area (303); a filter tank (2) in communication with the water inlet area (301); a sedimentation tank (1) in communication with the filter tank (2); a dosing room (4) arranged above the contact disinfection tank (3).

2. The combined wastewater advanced treatment system according to claim 1, wherein The system further comprises an ultraviolet disinfection tank (5) arranged between the filter tank (2) and the water inlet area (301).

3. The combined wastewater advanced treatment system according to claim 1, wherein The system further comprises a tail water pump house (6) connected with the water outlet area (303).

4. The combined wastewater advanced treatment system according to claim 1, wherein The system further comprises a reclaimed water pump house (7) connected with the water outlet area (303).

5. The combined wastewater advanced treatment system according to claim 1, wherein The system further comprises a water quality online monitoring house (8) connected with the water outlet area (303).

6. The combined wastewater advanced treatment system according to claim 1, wherein The system further comprises a tool room (9) for providing machine repair tools.

7. The combined wastewater advanced treatment system of claim 1, wherein The floor of the dosing room (4) is 0.5-1.0 m higher than the outdoor ground level.

8. The combined wastewater advanced treatment system of claim 1, wherein, The sedimentation tank (1) is one of a high-efficiency sedimentation tank, a magnetic coagulation high-efficiency sedimentation tank, and a sand-adding high-efficiency sedimentation tank.

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