Domestic sewage integrated treatment equipment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses domestic sewage integrated treatment equipment, which comprises an equipment body, and is characterized in that the equipment body comprises a pre-denitration tank, at least one anoxic tank, at least one O tank, a secondary sedimentation tank, a sludge storage tank and a disinfection tank which are sequentially arranged from left to right, a water inlet pipeline is arranged on one side, far away from the anoxic tank, of the pre-denitration tank, a water outlet pipeline is arranged on one side, far away from the sludge storage tank, of the disinfection tank, an air pipe is arranged on the outer side of the equipment body, and a plurality of air pipe connectors which are respectively connected into the pre-denitration tank, the anoxic tank and the O tank are uniformly distributed on the air pipe. According to the utility model, the pre-denitration tank, the anoxic tank, the O tank, the secondary sedimentation tank, the sludge storage tank and the disinfection tank are matched for treatment, so that the effects of sludge treatment, deodorization and sterilization are enhanced, and the treatment effect on domestic sewage is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an integrated domestic sewage treatment device. Background Art

[0002] Domestic sewage is wastewater discharged from residents' daily lives, mainly from residential buildings and public buildings, such as residences, government offices, schools, hospitals, shops, public places and toilets of industrial enterprises. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and enteric infectious viruses, etc.). The organic matter in domestic sewage is extremely unstable and easily decomposes to produce foul odors. Bacteria and pathogens multiply in large numbers with organic matter in domestic sewage as nutrition, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge.

[0003] Sewage treatment is a process in which sewage is made to meet discharge requirements or be reused through equipment. However, existing domestic sewage treatment equipment has certain drawbacks when used. The neutralization reaction after dosing is slow and the nitrogen and phosphorus removal efficiency is low, which affects the final sewage treatment effect. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated domestic sewage treatment device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated domestic sewage treatment equipment, including an equipment body, characterized in that: the equipment body includes a pre-denitrification tank, at least one anoxic tank and an O tank, a secondary sedimentation tank, a sludge storage tank and a disinfection tank arranged in sequence from left to right, a water inlet pipe is provided on the side of the pre-denitrification tank away from the anoxic tank, a water outlet pipe is provided on the side of the disinfection tank away from the sludge storage tank, an air duct is provided on the outside of the equipment body, and a plurality of air duct interfaces which are respectively connected to the pre-denitrification tank, the anoxic tank and the O tank are evenly distributed on the air duct.

[0006] The following improvements are made in the present application scheme: manholes are opened in the middle of the sides of the pre-denitrification tank, anoxic tank, O tank, secondary sedimentation tank, sludge storage tank and disinfection tank, and the manholes corresponding to the pre-denitrification tank, anoxic tank and O tank are located above the air duct.

[0007] The following improvement is made in the solution of the present application: auxiliary manholes are provided at the lower ends of the sides of the O tank and the secondary sedimentation tank.

[0008] The following improvements are made in the present application: a mixed liquid return pipe is provided on the side of the pre-denitrification tank, anoxic tank and O tank located below the air duct, and the mixed liquid return pipe is provided with a plurality of pool inlet holes respectively connected to the pre-denitrification tank and the anoxic tank.

[0009] The following improvements are made in the present application: a first partition wall is provided between the pre-denitrification tank and the anoxic tank, a second partition wall is provided between the anoxic tank and the O tank, a connecting piece is provided between the top of the first partition wall and the second partition wall and the inner wall of the equipment body, and a plurality of circular holes are evenly distributed on the connecting piece.

[0010] The following improvement is made in the solution of the present application: a third partition wall is provided between at least one of the anoxic pools and between at least one of the O pools, and the bottom end of the third partition wall is connected to the inner wall of the equipment body by a connector.

[0011] The following improvement is made in the present application: a spare water outlet is provided on the side of the disinfection pool.

[0012] The following improvements are made in the present application: an overflow pipe is provided on one side of the secondary sedimentation tank and the sludge storage tank near the manhole, one end of the overflow pipe in the secondary sedimentation tank is connected to a dosing pipe, and a supernatant reflux port is provided in the sludge storage tank between the overflow pipe and the manhole. NaClO is added through the dosing pipe to neutralize harmful substances in the liquid, accelerate the neutralization reaction rate, and improve the sewage treatment speed.

[0013] The following improvements are made in the present application: a sludge pump is provided in the O tank and the secondary sedimentation tank, the output end of the sludge pump is connected to a hose, and the free end of the hose in the secondary sedimentation tank is connected to the sludge storage tank.

[0014] Compared with the prior art, the utility model provides an integrated domestic sewage treatment device, which has the following beneficial effects:

[0015] The utility model enhances the effects of sludge treatment, deodorization and sterilization through the coordinated treatment among the pre-denitrification tank, the anoxic tank, the O tank, the secondary sedimentation tank, the sludge storage tank and the disinfection tank, and effectively improves the treatment effect on domestic sewage. The utility model can be buried underground, semi-buried underground, or set on the ground as needed, and has the advantages of high strength, corrosion resistance, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 This is the external structure diagram of the utility model;

[0018] Figure 2It is an internal cross-sectional view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the AA surface of the utility model;

[0020] Figure 4 It is a cross-sectional view of the BB surface of the utility model;

[0021] Figure 5 It is a cross-sectional view of the CC surface of the utility model;

[0022] Figure 6 It is a cross-sectional view of the DD surface of the utility model;

[0023] Figure 7 It is a cross-sectional view of the EE surface of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] like Figure 1-7 As shown, an integrated domestic sewage treatment equipment includes an equipment body, which is mainly composed of a pre-denitrification tank 1, two anoxic tanks 2, two O tanks 3, a secondary sedimentation tank 4, a sludge storage tank 5 and a disinfection tank 6 arranged from left to right; wherein, a water inlet pipe 101 is provided on the side of the pre-denitrification tank 1 away from the anoxic tank 2, a water outlet pipe 601 is provided on the side of the disinfection tank 6 away from the sludge storage tank 5, and a spare water outlet 602 is also opened on the side of the disinfection tank 6.

[0028] An air duct 7 is provided on the outside of the equipment body, and five air duct interfaces 71 are evenly distributed on the air duct 7, which are respectively connected to the pre-denitrification tank 1, the two anoxic tanks 2 and the two O tanks 3; at the same time, manholes 8 are provided in the middle of the sides of the pre-denitrification tank 1, the two anoxic tanks 2 and the O tank 3, the secondary sedimentation tank 4, the sludge storage tank 5 and the disinfection tank 6, and the manholes 8 corresponding to the pre-denitrification tank 1, the anoxic tank 2 and the O tank 3 are located above the air duct 7, and auxiliary manholes 9 are also provided at the lower ends of the sides of the O tank 3 and the secondary sedimentation tank 4; a mixed liquor reflux pipe 10 is provided on the sides of the pre-denitrification tank 1, the anoxic tank 2 and the O tank 3 located below the air duct 7, and the mixed liquor reflux pipe 10 is provided with three pool inlet holes respectively connected to the pre-denitrification tank 1 and the two anoxic tanks 2.

[0029] A first partition wall 11 is provided between the pre-denitrification pool 1 and an adjacent anoxic pool 2, a second partition wall 12 is provided between another anoxic pool 2 and an adjacent O pool 3, and a connector 19 is provided between the top ends of the first partition wall 11 and the second partition wall 12 and the inner wall of the equipment body, and six circular holes are evenly distributed on the connector 19; a third partition wall 13 is provided between the two anoxic pools 2 and the two O pools 3, and the bottom end of the third partition wall 13 is also connected to the inner wall of the equipment body through the connector 19; a combined filler is provided in an anoxic pool 2 adjacent to the O pool 3 and the two O pools 3, which play a good role in distributing water and gas.

[0030] An overflow pipe 14 is provided on one side of the secondary sedimentation tank 4 and the sludge storage tank 5 near the manhole 8. One end of the overflow pipe 14 in the secondary sedimentation tank 4 is connected to a dosing pipe 15, and the other end is connected to the adjacent O tank 3. A supernatant reflux port 16 is provided in the sludge storage tank 5 between the overflow pipe 14 and the manhole 8. At the same time, a sludge pump 17 is provided in the O tank 3 and the secondary sedimentation tank 4. The output end of the sludge pump 17 is connected to a hose 18. The free end of the hose 18 in the secondary sedimentation tank 4 is connected to the sludge storage tank 5.

[0031] When in use, firstly, the domestic sewage is passed into the pre-denitrification tank 1 through the water inlet pipe 11. After the pre-denitrification treatment is completed, the sewage is transported from the pre-denitrification tank 11 to an adjacent anoxic tank 2 through the circular hole on the top connecting piece 19 of the first partition wall 11. Then, the sewage enters an anoxic tank 2 adjacent to the O tank 3 through the circular hole on the bottom connecting piece 19 of the third partition wall 13, and then enters the O tank 3 from the anoxic tank 2 through the circular hole on the top connecting piece 19 of the second partition wall 12. Then, the sewage enters the O tank 3 through the circular hole on the top connecting piece 19 of the third partition wall 13. The circular hole on the connector 19 enters an O tank 3 adjacent to the secondary sedimentation tank 3, and the sludge pump 17 is started to pump the bottom liquid into the secondary sedimentation tank 4, so that most of the particles are settled, and the upper layer of liquid enters the secondary sedimentation tank 4 through the overflow pipe 14, and NaClO is added to the secondary sedimentation tank 4 through the dosing pipe 15 for neutralization. After the neutralization reaction, the sludge pump 17 is started to pump the sludge into the sludge storage tank 5, and the upper layer of liquid enters the disinfection tank 6 through the overflow pipe 14, and is discharged through the outlet pipe 61 after disinfection.

Claims

1. An integrated domestic sewage treatment device, comprising a device body, characterized in that: The equipment body comprises a pre-denitrification tank (1), at least one anoxic tank (2) and an O tank (3), a secondary sedimentation tank (4), a sludge storage tank (5) and a disinfection tank (6) which are arranged in sequence from left to right; a water inlet pipe (101) is arranged on the side of the pre-denitrification tank (1) away from the anoxic tank (2); a water outlet pipe (601) is arranged on the side of the disinfection tank (6) away from the sludge storage tank (5); an air duct (7) is arranged on the outside of the equipment body; and a plurality of air duct interfaces (71) which are respectively connected to the pre-denitrification tank (1), the anoxic tank (2) and the O tank (3) are evenly distributed on the air duct (7); A first partition wall (11) is provided between the pre-denitrification tank (1) and the anoxic tank (2), a second partition wall (12) is provided between the anoxic tank (2) and the O tank (3), a connecting piece (19) is provided between the top ends of the first partition wall (11) and the second partition wall (12) and the inner wall of the equipment body, and a plurality of circular holes are evenly distributed on the connecting piece (19); A third partition wall (13) is provided between at least one of the anoxic pools (2) and at least one of the O pools (3), and the bottom end of the third partition wall (13) is connected to the inner wall of the device body via a connector (19).

2. The integrated domestic sewage treatment equipment according to claim 1 is characterized in that: The pre-denitrification tank (1), the anoxic tank (2), the O tank (3), the secondary sedimentation tank (4), the sludge storage tank (5) and the disinfection tank (6) are all provided with manholes (8) in the middle of the sides, and the manholes (8) corresponding to the pre-denitrification tank (1), the anoxic tank (2) and the O tank (3) are located above the air duct (7).

3. The integrated domestic sewage treatment equipment according to claim 2 is characterized in that: Auxiliary manholes (9) are provided at the lower ends of the sides of the O tank (3) and the secondary sedimentation tank (4).

4. The integrated domestic sewage treatment equipment according to claim 3 is characterized in that: A mixed liquid return pipe (10) is provided on the side of the pre-denitrification pool (1), the anoxic pool (2) and the O pool (3) located below the air duct (7), and the mixed liquid return pipe (10) is provided with a plurality of pool inlet holes respectively connected to the pre-denitrification pool (1) and the anoxic pool (2).

5. The integrated domestic sewage treatment equipment according to claim 1 is characterized in that: A spare water outlet (602) is provided on the side of the disinfection pool (6).

6. The integrated domestic sewage treatment equipment according to claim 1 is characterized in that: An overflow pipe (14) is provided on one side of the secondary sedimentation tank (4) and the sludge storage tank (5) near the manhole (8); one end of the overflow pipe (14) in the secondary sedimentation tank (4) is connected to a dosing pipe (15); and a supernatant liquid reflux port (16) is provided in the sludge storage tank (5) between the overflow pipe (14) and the manhole (8).

7. The integrated domestic sewage treatment equipment according to claim 1 is characterized in that: A sludge pump (17) is provided in the O tank (3) and the secondary sedimentation tank (4), the output end of the sludge pump (17) is connected to a hose (18), and the free end of the hose (18) in the secondary sedimentation tank (4) is connected to the sludge storage tank (5).

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