CN214270554U - Wastewater disinfection system based on ultraviolet and peracetic acid combined treatment - Google Patents
Wastewater disinfection system based on ultraviolet and peracetic acid combined treatment Download PDFInfo
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- CN214270554U CN214270554U CN202120101605.5U CN202120101605U CN214270554U CN 214270554 U CN214270554 U CN 214270554U CN 202120101605 U CN202120101605 U CN 202120101605U CN 214270554 U CN214270554 U CN 214270554U
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Abstract
The utility model discloses a waste water disinfection system based on ultraviolet and peracetic acid combined treatment, including killing device, detector and circulation jar, wherein, the detector is connected to the delivery port of killing the device for whether the water quality after detecting and treating through the device meets the requirements, if qualified, then directly discharges, if unqualified, then send into the water in the circulation jar, and then through the circulation jar, pour into the device that kills into once more with the water and carry out retreatment.
Description
Technical Field
The utility model relates to a waste water treatment technical field, in particular to waste water disinfection system based on ultraviolet and peracetic acid combined treatment.
Background
The final wastewater needs to be disinfected before it can be disposed of to the environment after the wastewater treatment is complete. Disinfection is an important component of wastewater treatment, and its main role is to eliminate pathogenic microorganisms such as bacteria, viruses and parasites, etc., so as to protect public health and environment. Currently, common wastewater disinfection methods include Ultraviolet (UV) irradiation treatment, ozone treatment, and treatment with chlorine disinfection agents, etc.
The disadvantages of these three sterilization methods are described separately below.
The ozone treatment is to adopt ozone to kill the wastewater. However, the half-life of ozone is short, the disinfection effect cannot be maintained, and the disinfection effect is remarkably reduced when the content of organic substances is high. In addition, ozone is not easily storable but is generally prepared on site, so that the equipment investment and operation cost are high, and bromides and iodides contained in wastewater also generate bromic acid and iodate which are sterilization byproducts harmful to human bodies.
The treatment by adopting the chlorine disinfectant is to carry out disinfection treatment on the wastewater by adopting the chlorine disinfectant. Chlorine eliminating agentThe poison comprises liquid chlorine Cl2Sodium hypochlorite NaClO, calcium hypochlorite Ca (CIO)2And the like, wherein hypochlorous acid plays a main role, but is easily influenced by pH, and disinfection byproducts such as trihalomethane, haloacetic acid and the like are generated after disinfection, so that the hypochlorous acid causes great harm to a human body.
Ultraviolet (UV) irradiation treatment is the treatment of wastewater by irradiation with ultraviolet light. The ultraviolet ray can permanently kill viruses, bacteria, spores, fungi and other pathogenic bacteria, and no chemical agent is needed to be added, so that the method has the advantages of no drug residue, short contact time, good disinfection effect, no disinfection by-product, no odor and taste discomfort, but high ultraviolet ray disinfection cost and high energy input.
SUMMERY OF THE UTILITY MODEL
To some or all problems among the prior art, the utility model provides a waste water disinfection system based on ultraviolet and peroxyacetic acid combined treatment, include:
a killing apparatus comprising:
a water inlet;
a peroxyacetic acid inlet;
n folded plates are arranged on the inner wall of the killing device, a first gap exists between each folded plate and the inner wall on one side, the first gaps corresponding to the folded plates are arranged in a staggered mode, and N is a natural number;
the ultraviolet lamp killing module is arranged inside the killing device and is arranged behind the folded plate along the flow direction of the wastewater; and
a water outlet;
one end of the detector is connected to the water outlet of the sterilizing device and is used for detecting the quality of the water body treated by the sterilizing device; and
and a water inlet of the circulating tank is connected to the other end of the detector through a circulating water control valve, and a water outlet of the circulating tank is connected to a water inlet of the sterilizing device through a circulating pump.
Furthermore, the ultraviolet lamp sterilization module comprises one or more ultraviolet lamp panels, the ultraviolet lamp panels are arranged on the inner wall of the sterilization device, a second gap exists between each ultraviolet lamp panel and the inner wall on one side, and the second gaps corresponding to the ultraviolet lamp panels are arranged in a staggered mode.
Further, the detector is a peroxyacetic acid detector.
Further, the wastewater disinfection system further comprises a wastewater inlet control valve connected to the water inlet to control the inflow of wastewater.
Further, the wastewater disinfection system also comprises a dosing control valve connected to the peroxyacetic acid input port.
Further, the wastewater disinfection system further comprises a water outlet control valve connected to the water outlet.
Further, the wastewater disinfection system also comprises a circulation control switch which is arranged between the water inlet of the disinfection device and the circulation pump.
The utility model provides a pair of waste water disinfection system based on ultraviolet and peroxyacetic acid joint treatment through the setting of folded plate for waste water can mix fully with peroxyacetic acid, then does further disappearing through the ultraviolet lamp and kills. And after the treatment is finished, detecting whether residual peroxyacetic acid exists in the water body through a detector, if so, re-injecting the water body into the sterilizing device through the circulating tank for re-sterilizing, and circulating the steps until the detector detects the qualified product. The wastewater disinfection system has the advantages of good disinfection effect, no disinfection by-products, simple system structure and lower cost.
Drawings
To further clarify the above and other advantages and features of various embodiments of the present invention, a more particular description of various embodiments of the invention will be rendered by reference to the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. In the drawings, the same or corresponding parts will be denoted by the same or similar reference numerals for clarity.
Fig. 1 shows a schematic structural diagram of a wastewater disinfection system based on combined treatment of ultraviolet and peracetic acid according to an embodiment of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings in conjunction with the detailed description. It should be noted that the components in the figures may be exaggerated and not necessarily to scale for illustrative purposes. In the figures, identical or functionally identical components are provided with the same reference symbols.
In the present invention, "disposed on …", "disposed above …" and "disposed over …" do not exclude the presence of an intermediate therebetween, unless otherwise specified. Further, "disposed on or above …" merely indicates the relative positional relationship between two components, and may also be converted to "disposed below or below …" and vice versa in certain cases, such as after reversing the product direction.
In the present invention, the embodiments are only intended to illustrate the aspects of the present invention, and should not be construed as limiting.
In the present application, the terms "a" and "an" do not exclude the presence of a plurality of elements, unless otherwise indicated.
It is further noted herein that in embodiments of the present invention, only a portion of the components or assemblies may be shown for clarity and simplicity, but those skilled in the art will appreciate that the components or assemblies may be added as needed for specific scenarios, given the teachings of the present invention.
It is also to be noted that, within the scope of the present invention, the expressions "identical", "equal", etc., do not mean that the two values are absolutely equal, but allow a certain reasonable error, that is, the expressions also cover "substantially identical", "substantially equal". By analogy, in the present disclosure, the terms "perpendicular to", "parallel to", and the like in the table direction also cover the meaning of "substantially perpendicular to", "substantially parallel to".
The scheme of the utility model is based on the following insights of inventor: for the wastewater with higher pollution concentration, if the wastewater is disinfected by simply adopting an ultraviolet irradiation method, the high-energy input needs to be carried out for a long time, and the disinfection cost is higher. Therefore, if the wastewater can be pretreated before ultraviolet disinfection, the pollution concentration is reduced, and the time consumption and the cost of ultraviolet disinfection are effectively reduced. The peroxyacetic acid is an organic peroxide, has broad-spectrum sterilization capability, can release nascent oxygen when meeting organic matters or enzymes, further realizes the sterilization effect, and has the defect of high organic matter content in water after sterilization by adopting the peroxyacetic acid, so that microorganisms have potential for regrowth. However, residual organic matters and residual peracetic acid can be easily decomposed under ultraviolet irradiation, so that the wastewater is pretreated by using the peracetic acid before ultraviolet disinfection, the disinfection cost can be effectively reduced, and secondary pollution is avoided. Meanwhile, in order to ensure the disinfection effect, it is necessary to inspect the water body after the treatment is completed, so as to ensure that the water body reaches the discharge standard. In order to achieve the above purpose, the inventor proposes a wastewater disinfection system based on combined treatment of ultraviolet and peroxyacetic acid, which integrates ultraviolet irradiation and peroxyacetic acid disinfection into the same device and is provided with a checking and recycling treatment device. The invention will be further elucidated with reference to the drawings in conjunction with the detailed description.
Fig. 1 shows a schematic structural diagram of a wastewater disinfection system based on combined treatment of ultraviolet and peracetic acid according to an embodiment of the present invention.
As shown in fig. 1, a wastewater disinfection system based on ultraviolet and peracetic acid combined treatment comprises a disinfection device 001, a detector 002 and a circulation tank 003, wherein the detector 002 is connected to a water outlet of the disinfection device 001 and is used for detecting whether the quality of water treated by the disinfection device 001 meets requirements, if the quality of water is qualified, the water is directly discharged, and if the quality of water is not qualified, the water is sent into the circulation tank 003, and then the water is injected into the disinfection device 001 again through the circulation tank 003 for secondary treatment.
The sterilizing device 001 comprises a water inlet 101, a peroxyacetic acid feeding port 102, a folded plate 103, an ultraviolet lamp sterilizing module 104 and a water outlet 105.
The water inlet 101 is used for injecting wastewater to be treated, and in an embodiment of the present invention, a wastewater inlet control valve 1011 is disposed on the water inlet 101 to control the inflow of wastewater.
The peroxyacetic acid inlet 102 is used for injecting peroxyacetic acid into the sterilizing device, and in an embodiment of the present invention, the peroxyacetic acid inlet 102 and the water inlet 101 may be shared. In order to control the injection amount of the peracetic acid more precisely, in another embodiment of the present invention, the peracetic acid inlet 102 is provided with a dosing control valve 1021.
The folded plate 103 comprises one or more folded plates, the folded plate 103 is arranged on the inner wall of the killing device, a first gap 1031 exists between each folded plate and the inner wall of one side of the killing device, and the first gaps corresponding to the folded plates are arranged in a staggered mode. Through the arrangement of the folded plate, the waste water and the peroxyacetic acid can be fully mixed, so that sufficient time is provided for sterilization.
The ultraviolet lamp sterilizing module 104 is used for further sterilizing the water body treated by the peracetic acid and decomposing the residual peracetic acid into carbon dioxide and water. The ultraviolet lamp killing module 104 is disposed inside the killing device and behind the flap in the flow direction of the wastewater, for example, in one embodiment of the present invention, the water inlet is disposed at the top end of the killing device, the water outlet is disposed on the ground of the killing device, the flap is disposed at the upper half part inside the killing device, and the ultraviolet lamp killing module 104 is disposed below the flap and near the water outlet. For ensuring the length of the killing, in an embodiment of the present invention, the ultraviolet lamp killing module 104 includes one or more ultraviolet lamp panels, the ultraviolet lamp panels are disposed on the inner wall of the killing device, each ultraviolet lamp panel and a second gap 1041 exists between the inner wall of one side of the killing device, and the second gaps corresponding to the ultraviolet lamp panels are staggered.
One end of the detector 002 is connected to the water outlet 105 of the killing device 001, and the other end is divided into two paths, wherein one path is a direct water outlet, and the other path is connected to the water inlet 301 of the circulating tank 003. The direct water outlet and the water inlet 301 of the circulation tank 003 are controlled by a water outlet control valve 004 and a water circulation control valve 3011 respectively: when the detection result of the detector is qualified, the water body is controlled to be directly discharged through the water outlet control valve 004; and when the detection result of the detector is unqualified, controlling the water body to be directly discharged into the circulating tank 003 through the circulating water control valve 3011. The detector 002 is used for detecting the water quality after the sterilizing device 001 is used, and is mainly the content of peracetic acid, therefore, in an embodiment of the utility model, the detector 002 is a peracetic acid detector.
The circulation tank 003 is mainly adapted to re-feed the water body that is detected to be unqualified into the sterilizing device 001. The water outlet of the circulating tank 003 is connected to the water inlet 101 of the sterilizing device through a circulating pump 302, and in order to control the water flow discharge speed and ensure the sufficient mixing of the water body and the peroxyacetic acid, a circulating control switch 3021 is arranged between the water inlet 101 of the sterilizing device and the circulating pump 302 and used for controlling the water flow speed entering the sterilizing device 001 from the circulating tank 003.
The wastewater disinfection process based on the wastewater disinfection system comprises the following steps:
wastewater to be treated and peroxyacetic acid are respectively injected into the sterilizing and killing device through a water inlet 101 and a peroxyacetic acid injection port 102, and the water flow speed and the input amount of the peroxyacetic acid can be adjusted through a wastewater inlet control valve 1011 and a drug adding control valve 1021;
fully mixing the wastewater to be treated with peroxyacetic acid in a folded plate section, and sterilizing microorganisms in the folded plate section;
after passing through the baffle section, the sewage enters an ultraviolet lamp treatment module, the ultraviolet lamp further kills the sewage and decomposes the peracetic acid into CO2And water;
the water body after being sterilized flows out through a water outlet, is detected by a peroxyacetic acid detector, and if the water body is qualified, the water outlet control valve 004 is controlled to discharge the water body; and if the water is remained, enabling the water body to enter the circulating tank through the circulating water control valve;
and (4) delivering the water body to the sterilizing device again through the circulating pump, and then feeding the water body to the peroxyacetic acid and ultraviolet combined sterilizing device again until the detection result of the detector is qualified.
While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be apparent to persons skilled in the relevant art that various combinations, modifications, and changes can be made thereto without departing from the spirit and scope of the invention. Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims (7)
1. A wastewater disinfection system based on combined ultraviolet and peracetic acid treatment, comprising:
a killing apparatus comprising:
a water inlet;
a peroxyacetic acid inlet;
n folded plates are arranged on the inner wall of the killing device, a first gap exists between each folded plate and the inner wall on one side, the first gaps corresponding to the folded plates are arranged in a staggered mode, and N is a natural number;
the ultraviolet lamp killing module is arranged inside the killing device and is arranged behind the folded plate along the flow direction of the wastewater; and
a water outlet;
a detector, one end of which is connected to the water outlet of the killing device, wherein the detector is configured to detect the quality of the water body treated by the killing device; and
and the water inlet of the circulating tank is connected to the other end of the detector through a circulating water control valve, and the water outlet of the circulating tank is connected to the water inlet of the sterilizing device through a circulating pump.
2. The wastewater disinfection system of claim 1, wherein the uv lamp disinfection module comprises one or more uv lamp panels disposed on an interior wall of the disinfection device, wherein a second gap exists between each uv lamp panel and a side interior wall, and wherein the second gaps of each uv lamp panel are staggered.
3. The wastewater disinfection system of claim 1, wherein the detector is a peracetic acid detector.
4. The wastewater disinfection system of claim 1, further comprising a wastewater inlet control valve coupled to the inlet to control the inflow of wastewater.
5. The wastewater disinfection system of claim 1, further comprising a dosing control valve coupled to the peroxyacetic acid inlet.
6. The wastewater disinfection system of claim 1, further comprising an outlet control valve connected to the outlet.
7. The wastewater disinfection system of claim 1, further comprising a circulation control switch disposed between the disinfection device water inlet and the circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120101605.5U CN214270554U (en) | 2021-01-14 | 2021-01-14 | Wastewater disinfection system based on ultraviolet and peracetic acid combined treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120101605.5U CN214270554U (en) | 2021-01-14 | 2021-01-14 | Wastewater disinfection system based on ultraviolet and peracetic acid combined treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214270554U true CN214270554U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120101605.5U Active CN214270554U (en) | 2021-01-14 | 2021-01-14 | Wastewater disinfection system based on ultraviolet and peracetic acid combined treatment |
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| Country | Link |
|---|---|
| CN (1) | CN214270554U (en) |
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2021
- 2021-01-14 CN CN202120101605.5U patent/CN214270554U/en active Active
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