Device for inhibiting growth of algae in secondary sedimentation tank by ultraviolet illumination

Abstract

The utility model belongs to the technical field of sewage treatment, and provides a device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet illumination, which comprises a barrel body with a base and a top cover independent of the barrel body, the barrel body is light-transmitting, a sealing cavity and a working cavity are arranged in the barrel body, the sealing cavity and the working cavity are separated by a partition plate, and a power supply device is arranged in the sealing cavity. A plurality of rows of ultraviolet lamps are arranged in the working cavity, each ultraviolet lamp comprises a UV-A wave band and a UV-B wave band, the power supply equipment is electrically connected with the ultraviolet lamps, and the barrel body corresponding to the working cavity is provided with a plurality of water inlets and outlets; a lifting mechanism is further arranged outside the top cover, a fixing device is arranged at one end of the lifting mechanism, and the fixing device and the lifting mechanism are in threaded connection or connected through a buckle. The device is compact in design and simple in structure, realizes environment-friendly and efficient removal of algae in sewage, and solves the problem of water quality decline caused by chemical algae removal.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet light. Background Art

[0002] Algae are common aquatic plants in water bodies. They can carry out photosynthesis, and their growth state is related to their growth environment. Nutrients in sewage can cause excessive growth of algae, which brings challenges to the sewage treatment process. In the process of sewage treatment, the secondary sedimentation tank is an important component, which is used to achieve mud-water separation, sludge concentration, return sludge, etc. The effect of its sedimentation treatment directly affects the water quality of the effluent and the concentration of the return sludge. When a large amount of nutrients in sewage causes algae to grow excessively, this not only affects the normal operation of the secondary sedimentation tank, but also may cause the water quality treated by the sewage treatment system to deteriorate. Traditional algae removal methods such as the use of chemical algaecides may cause secondary pollution, resulting in an increase in the chemical oxygen demand (COD) of the effluent. Therefore, it is crucial to develop an environmentally friendly and efficient algae removal technology. Utility Model Content

[0003] The embodiment of the utility model provides an ultraviolet light device for inhibiting algae growth in a secondary sedimentation tank, optimizes the treatment method and treatment device for algae in sewage, and solves the technical drawbacks of the prior art.

[0004] The utility model provides an ultraviolet light device for inhibiting algae growth in a secondary sedimentation tank, comprising a barrel body with a base and a top cover independently arranged from the barrel body, the barrel body comprising a sealed chamber and a working chamber, the sealed chamber and the working chamber being separated by a partition, a power supply device being arranged in the sealed chamber, a plurality of rows of ultraviolet lamps being arranged in the working chamber, the ultraviolet lamps comprising a UV-A band and a UV-B band, the power supply device being electrically connected to the ultraviolet lamps, a plurality of water inlets and outlets being arranged on the barrel body corresponding to the working chamber; a lifting mechanism being also included outside the top cover, a fixer being arranged at one end of the lifting mechanism, the fixer being screwed or connected to the lifting mechanism by a buckle; the barrel body is light-transmissive.

[0005] Optionally, the UV-A band and the UV-B band are displayed alternately at a preset frequency.

[0006] Optionally, the ultraviolet band of the ultraviolet lamp includes 280-320nm and 320-380nm.

[0007] Optionally, the lifting mechanism includes a mechanism consisting of a telescopic sleeve, a motor or a cylinder and a telescopic bracket.

[0008] Optionally, a handle is also included, and the handle is nested in the outer wall of the top cover.

[0009] Optionally, it also includes a lamp tube stopper, which is sleeved with the lamp body of the ultraviolet lamp and overlaps with the inner wall of the barrel.

[0010] Optionally, it also includes a counterweight block, which is detachably connected to the base, or the counterweight block is hung on the outer wall of the barrel body corresponding to the sealed cavity.

[0011] Optionally, a protective pad is further included, wherein the protective pad is bonded to the outer wall of the barrel body, and the protective pad avoids the barrel body corresponding to the working cavity.

[0012] Optionally, the plurality of water inlets and outlets are waist-shaped hole structures; the surface layer of the barrel body includes an oil film, and the oil film is bonded to the barrel body.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet light, comprising a barrel body with a base and a top cover independently arranged from the barrel body, the barrel body of the barrel body is light-transmissive, the barrel body comprises a sealed chamber and a working chamber, the sealed chamber and the working chamber are separated by a partition, a power supply device is arranged in the sealed chamber, and multiple rows of ultraviolet lamps are arranged in the working chamber, the ultraviolet light is used to destroy the DNA of the algae by destroying the DNA of the algae by ultraviolet light in a set wavelength range, and the set wavelength range includes the UV-A band and the UV-B band. In addition, the barrel body corresponding to the working chamber is provided with multiple water inlets and outlets, which are used to cool the entire device by flowing water, so as to prevent the ultraviolet lamp from overheating and affecting the normal operation and service life of the lamp; a lifting mechanism is also arranged outside the top cover, and a fixing device is arranged at one end of the lifting mechanism, and the fixing device is screwed or connected to the lifting mechanism by a buckle, and the lifting mechanism is used to adjust the distance between the working chamber and the water surface, or adjust the distance between the light source and the algae, so as to control the treatment effect on the algae, and adjust it with the change of the water volume. The utility model realizes environmentally friendly and efficient removal of algae in sewage, and solves the problem that chemical algae removal may lead to deterioration of water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram showing the structure of a device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet light provided in an embodiment of the present application;

[0016] Figure 2 A schematic front view of the installation of a lamp stopper in an embodiment of the present application is shown;

[0017] Figure 3 A schematic diagram of the installation of a lamp tube stopper in a barrel cross-sectional view in an embodiment of the present application is shown.

[0018] Reference numerals:

[0019] 1: base; 2: top cover; 3: partition; 4: water inlet and outlet; 5: lifting mechanism; 6: fixer; 7: handle; 8: lamp tube limiter; 9: protective pad; 10: sealing chamber; 101: power supply device; 20: working chamber; 201: ultraviolet lamp. DETAILED DESCRIPTION

[0020] The technical solutions in the application embodiments will be described clearly and completely below in conjunction with the accompanying drawings in the application embodiments. In addition, the phrases "in one embodiment" or "in an embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics may be combined in one or more embodiments in any suitable manner.

[0021] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal 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 article or terminal 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 article or terminal device including the elements.

[0022] In the process of sewage treatment, the secondary sedimentation tank is an important component, which is used to achieve mud-water separation, sludge concentration, return sludge, etc. The effect of its sedimentation treatment directly affects the water quality of the effluent and the concentration of the return sludge. When a large amount of nutrients in the sewage causes algae to overgrow, this not only affects the normal operation of the secondary sedimentation tank, but may also lead to a decrease in the water quality treated by the sewage treatment system. Traditional algae removal methods such as the use of chemical algaecides may cause secondary pollution, increasing the chemical oxygen demand (COD) of the effluent. Therefore, how to remove algae efficiently under the premise of environmental protection and economy without causing secondary pollution to the water is the key to sewage algae removal technology.

[0023] The utility model embodiment provides a device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet light, see Figures 1 to 3 shown.

[0024] like Figure 1As shown, the utility model provides an ultraviolet light device for inhibiting algae growth in a secondary sedimentation tank, comprising a barrel body with a base 1 and a top cover 2 independently arranged from the barrel body, the barrel body comprising a sealed chamber 10 and a working chamber 20, the sealed chamber 10 and the working chamber 20 being separated by a partition 3, a power supply device 101 being arranged in the sealed chamber 10, a plurality of rows of ultraviolet lamps 201 being arranged in the working chamber 20, the ultraviolet lamps 201 comprising a UV-A band and a UV-B band, the power supply device 101 being electrically connected to the ultraviolet lamps 201, a plurality of water inlets and outlets 4 being arranged in the barrel body corresponding to the working chamber 20; the top cover 2 further comprises a lifting mechanism 5 (movable bracket), one end of the lifting mechanism 5 is provided with a fixer 6, the fixer 6 is screwed or connected to the lifting mechanism 5 by a buckle; the barrel body is light-transmissive.

[0025] The utility model provides an ultraviolet light device for inhibiting algae growth in a secondary sedimentation tank, comprising a barrel body with a base 1 and a top cover 2 independently arranged from the barrel body, the barrel body of the barrel body is light-transmissive, the barrel body comprises a sealed chamber 10 and a working chamber 20, the sealed chamber 10 and the working chamber 20 are separated by a partition 3, a power supply device 101 is arranged in the sealed chamber 10, and a plurality of rows of ultraviolet lamps 201 are arranged in the working chamber 20, the destructive and inhibitory effect of ultraviolet light on the growth of algae is utilized, and the DNA of the algae is destroyed by ultraviolet light in a set wavelength range, and the set wavelength range includes the UV-A band and the UV-B band. In addition, the barrel body corresponding to the working chamber 20 is provided with a plurality of water inlets and outlets 4, which are used to cool the entire device by flowing water, so as to prevent the ultraviolet lamp 201 from overheating and affecting the normal operation and service life of the lamp; a lifting mechanism 5 is also provided outside the top cover 2, and a fixture 6 is provided at one end of the lifting mechanism 5, and the fixture 6 is screwed or connected to the lifting mechanism 5 by a buckle. The lifting mechanism 5 is used to adjust the distance between the working chamber 20 and the water surface, or adjust the distance between the light source and the algae, so as to control the treatment effect on the algae, and adjust it with the change of the water volume. The utility model realizes environmentally friendly and efficient removal of algae in sewage, and solves the problem that chemical algae removal will lead to deterioration of water quality.

[0026] Among them, the ultraviolet bands of the aforementioned ultraviolet lamp 201 include 280-320nm and 320-380nm. The UV-A band, i.e., 320-380nm, has strong penetration ability and less loss during the propagation process; the UV-B band, i.e., 280-320nm, has obvious inhibitory and destructive effects on target algae. In addition, the UV-B band can also be set to 315nm, and the UV-A band can also be set to 400nm. The specific selection can be based on the adaptability of the tolerance program of different algae to ultraviolet light in actual experiments, and this embodiment does not make specific restrictions on this.

[0027] In addition, the multiple water inlets and outlets 4 on the barrel body are waist-shaped hole structures; the waist-shaped holes can avoid stress concentration on the barrel body and make the barrel body easily damaged.

[0028] In some embodiments, the aforementioned UV-A band and UV-B band are alternately displayed at a preset frequency. In this embodiment, in consideration of enhancing the damaging effect of ultraviolet light on algae DNA, the UV-A band and UV-B band are alternated, that is, the algae are irradiated with ultraviolet light of different bands at a preset alternating frequency, so that the algae DNA is repeatedly damaged multiple times. The alternating frequency and irradiation time are related to the actual type of algae and can be selected according to actual test results, and this embodiment does not impose specific restrictions on this.

[0029] In some embodiments, the aforementioned lifting mechanism 5 may include a mechanism consisting of a telescopic sleeve, a motor or a cylinder, and a telescopic bracket, and the specific selection can be adaptively selected according to the overall volume of the device and the convenience of use.

[0030] In other embodiments, the device further comprises a lamp stopper 8, which is sleeved with the lamp body of the ultraviolet lamp 201 and overlapped with the inner wall of the barrel. Figure 2 As shown in Figure 3, multiple rows of ultraviolet lamps 201 pass through the limiting holes in the lamp stopper 8, and the limiting holes are used to stabilize the position of the ultraviolet lamps 201 to prevent the lamps from being overturned or damaged due to force during movement or water fluctuations. A rubber cushion can also be sleeved on the limiting holes in the lamp stopper 8 that contact the lamps to protect the lamps.

[0031] In addition, a handle 7 is included, and the handle 7 is embedded in the outer wall of the top cover 2.

[0032] In some other embodiments, the device further includes a counterweight block, which is detachably connected to the base 1, or is mounted on the outer wall of the barrel corresponding to the sealed cavity 10. The counterweight block can adjust the distance between the device and the sewage surface or the distance between the device and the underwater algae in the sewage by increasing the weight of the entire device. That is, the utility model takes into account both the algae removal function of the surface algae and the algae removal function of the underwater algae, further improving the practicality of the algae removal device.

[0033] In some embodiments, the device may further include a protective pad 9, which is bonded to the outer wall of the barrel body and avoids the barrel body corresponding to the working chamber 20. The protective pad 9 is used to buffer external forces when the device is working to prevent the device from being damaged by bumps.

[0034] In addition, in some embodiments, the surface layer of the barrel in the device includes an oil film, and the oil film is bonded to the barrel. The oil film can reduce the attachment of impurities in the water to the surface of the barrel, because the attached impurities block the propagation of part of the ultraviolet light, which has an inhibitory effect on the damage of algae DNA. The oil film can be set as a transparent sticker, and can also be sprayed to prevent the barrel and the entire device from being coated with a waterproof and impurity-resistant oil film, which is not specifically limited in this embodiment.

[0035] Finally, the utility model provides a device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet light, including a barrel body with a base 1 and a top cover 2 independently arranged from the barrel body, the barrel body is light-transmissive, and the barrel body includes a sealed chamber 10 and a working chamber 20, the sealed chamber 10 and the working chamber 20 are separated by a partition 3, a power supply device 101 is arranged in the sealed chamber 10, and multiple rows of ultraviolet lamps 201 are arranged in the working chamber 20, the ultraviolet lamps 201 include UV-A band and UV-B band, the power supply device 101 is electrically connected to the ultraviolet lamps 201, and the barrel body corresponding to the working chamber 20 is provided with multiple water inlets and outlets 4; the top cover 2 also includes a lifting mechanism 5, one end of the lifting mechanism 5 is provided with a fixture 6, and the fixture 6 is screwed or connected to the lifting mechanism 5 by a buckle. The utility model has a compact design and a simple structure, realizes environmentally friendly and efficient removal of algae in sewage, and solves the problem that chemical algae removal will lead to deterioration of water quality.

[0036] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For the parts not described in detail in individual embodiments, reference can be made to the description in other embodiments. Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0037] The above embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A device for inhibiting algae growth in a secondary sedimentation tank by ultraviolet light, characterized in that: The invention relates to a barrel body comprising a base (1) and a top cover (2) which are independently arranged from the barrel body, wherein the barrel body comprises a sealed cavity (10) and a working cavity (20), wherein the sealed cavity (10) and the working cavity (20) are separated by a partition (3), wherein a power supply device (101) is arranged in the sealed cavity (10), wherein a plurality of rows of ultraviolet lamps (201) are arranged in the working cavity (20), wherein the ultraviolet lamps (201) comprise a UV-A band and a UV-B band, wherein the power supply device (101) is electrically connected to the ultraviolet lamps (201), and wherein a plurality of water inlets and outlets (4) are arranged on the barrel body corresponding to the working cavity (20); wherein the top cover (2) further comprises a lifting mechanism (5), wherein one end of the lifting mechanism (5) is provided with a fixer (6), wherein the fixer (6) and the lifting mechanism (5) are screwed or connected by a buckle; and wherein the barrel body is light-transmissive.

2. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 1, characterized in that: The UV-A band and the UV-B band are displayed alternately at a preset frequency.

3. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 1, characterized in that: The ultraviolet wavelength band of the ultraviolet lamp (201) includes 280-320nm and 320-380nm.

4. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 3, characterized in that: The lifting mechanism (5) comprises a mechanism consisting of a telescopic sleeve, a motor or a cylinder and a telescopic bracket.

5. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 1, characterized in that: It also comprises a handle (7), wherein the handle (7) is nested in the outer wall of the top cover (2).

6. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 1, characterized in that: It also comprises a lamp tube stopper (8), wherein the lamp tube stopper (8) is sleeved with the lamp body of the ultraviolet lamp (201), and the lamp tube stopper (8) is overlapped with the inner wall of the barrel body.

7. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 3, characterized in that: It also includes a counterweight block, which is detachably connected to the base, or the counterweight block is hung on the outer wall of the barrel body corresponding to the sealed cavity (10).

8. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 1, characterized in that: It also includes a protective pad (9), which is bonded to the outer wall of the barrel body, and the protective pad (9) avoids the barrel body corresponding to the working chamber (20).

9. The ultraviolet light device for inhibiting algae growth in secondary sedimentation tank according to claim 1, characterized in that: The plurality of water inlets and outlets (4) are waist-shaped hole structures; the surface layer of the barrel body comprises an oil film, and the oil film is bonded to the barrel body.

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