CN213388216U - Device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology - Google Patents
Device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology Download PDFInfo
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- CN213388216U CN213388216U CN202021347271.1U CN202021347271U CN213388216U CN 213388216 U CN213388216 U CN 213388216U CN 202021347271 U CN202021347271 U CN 202021347271U CN 213388216 U CN213388216 U CN 213388216U
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- dyeing wastewater
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Abstract
The utility model discloses a device for treating printing and dyeing wastewater based on an ozone catalytic oxidation combination technology, which comprises a first intermediate water tank, an ozone oxidation tower, a second intermediate water tank and a biological activated carbon filter tank which are sequentially connected by pipelines; the ozone oxidation tower is connected with an ozone generator and a tail gas decomposer; the top of the biological activated carbon filter is connected with a blast aeration device, and the bottom of the biological activated carbon filter is connected with a back flush pipeline. The utility model discloses the structure adopts the whole assembled structure, compact structure, and area is little, is applicable to the big, land used nervous area of handling the water yield. Through the rational design of the ozone oxidation device and the biological activated carbon filter, the treatment cost of the printing and dyeing wastewater can be greatly reduced, and the effluent quality can be improved.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially involves a device based on printing and dyeing wastewater is handled to ozone catalytic oxidation combination technology.
Background
The printing and dyeing wastewater has high organic matter concentration, high chroma, poor biodegradability, and even stronger toxicity and biological inhibition, so the problems of difficult reaching of the new discharge standard after the standard extraction and difficult recycling are generally existed. The utilization rate of the reclaimed water in cities in China is required to reach more than 20% in the 'twelve five' period of China, and is increased by 11.5% compared with that in the end of 2010, so that the market scale of the reclaimed water can reach 1000 hundred million yuan in the next 5 years, and higher requirements are provided for the recycling of the production wastewater in the printing and dyeing industry. Therefore, the research on a stable, efficient, economical and applicable new wastewater treatment technology becomes the urgent need in the increasingly severe situation of energy conservation and emission reduction in China.
Ozone is a strong oxidant with strong oxidizability, the oxidation-reduction potential is 2.07V, and the oxidation-reduction potential is only 2.87V lower than that of fluorine in nature. The strong oxidizing property of ozone can destroy the chromophoric groups of-N-, > C-, > C-O, N-O, etc. in the dye molecule, so as to decolor the printing and dyeing wastewater. The biological activated carbon technology utilizes the characteristics of the huge specific surface and developed pore structure of material-shaped activated carbon on strong adsorption of organic matters and dissolved oxygen in water, replaces the traditional biological filler with the biological carrier, and fully utilizes the synergistic effect of the adsorption of the activated carbon and the organic decomposition of microorganisms in the activated carbon.
The technology for highly centralized treatment of wastewater by ozone-biological activated carbon in the prior art is not well utilized, the wastewater reuse rate and the treatment efficiency are not high, and various requirements of enterprises cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the weak point among the above-mentioned prior art and provide a device based on printing and dyeing wastewater is handled to ozone catalytic oxidation combined technology that treatment effect is good, waste water reuse rate is high.
The utility model discloses a realize through following mode:
a device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology is characterized in that: comprises a first intermediate water tank, an ozone oxidation tower, a second intermediate water tank and a biological activated carbon filter which are sequentially connected by pipelines; the ozone oxidation tower is connected with an ozone generator and a tail gas decomposer; the top of the biological activated carbon filter is connected with a blast aeration device, and the bottom of the biological activated carbon filter is connected with a back flush pipeline.
Furthermore, a first sewage lifting pump and a first flow meter are arranged on a connecting pipeline between the first intermediate water tank and the ozone oxidation tower; and a first liquid level meter is arranged at the top of the first middle water tank.
Furthermore, a second sewage lifting pump and a second flowmeter are arranged on a connecting pipeline between the second intermediate water tank and the biological activated carbon filter; and a second liquid level meter is arranged at the top of the second middle water tank.
Furthermore, a ceramsite packing layer and a titanium plate aeration disc are sequentially arranged inside the ozone oxidation tower from top to bottom.
Furthermore, the ceramsite packing layer is provided with at least two layers.
Furthermore, an activated carbon packing layer and a perforated aeration pipe are sequentially arranged inside the biological activated carbon filter from top to bottom.
Further, the activated carbon filler layer is provided with at least two layers.
Further, the air inlet of the ozone generator is sequentially connected with an air source supply device and an air purification device.
The beneficial effects of the utility model reside in that: the utility model discloses the structure adopts the whole assembled structure, compact structure, and area is little, is applicable to the big, land used nervous area of handling the water yield. Through the rational design of the ozone oxidation device and the biological activated carbon filter, the treatment cost of the printing and dyeing wastewater can be greatly reduced, and the effluent quality can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in figure 1, the device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combined technology is characterized in that: comprises a first intermediate water tank 1, an ozone oxidation tower 5, a second intermediate water tank 12 and a biological activated carbon filter 17 which are connected by pipelines in sequence; the ozone oxidation tower 5 is connected with an ozone generator 7 and a tail gas decomposer 11; the top of the biological activated carbon filter 17 is connected with the blast aeration device 16, and the bottom is connected with the back washing pipeline 20.
Further, a first sewage lifting pump 4 and a first flow meter 3 are arranged on a connecting pipeline between the first intermediate water tank 1 and the ozone oxidation tower 5; and a first liquid level meter 2 is arranged at the top of the first middle water tank 1.
Further, a second sewage lifting pump 14 and a second flow meter 15 are arranged on a connecting pipeline between the second intermediate water tank 12 and the biological activated carbon filter 17; and a second liquid level meter 13 is arranged at the top of the second middle water tank 12.
Further, a ceramsite packing layer 10 and a titanium plate aeration disc 6 are sequentially arranged inside the ozone oxidation tower 5 from top to bottom.
Furthermore, the ceramsite packing layer 10 is provided with at least two layers.
Further, an activated carbon filler layer 19 and a perforated aeration pipe 18 are sequentially arranged inside the biological activated carbon filter 17 from top to bottom.
Further, the activated carbon filler layer 19 is provided with a minimum of two layers.
Further, the air inlet of the ozone generator 7 is connected with an air source supply device 9 and an air purification device 8 in sequence.
When the utility model works, the biochemical printing and dyeing effluent enters the first intermediate water tank 1, enters the bottom of the ozone oxidation tower 5 through the first sewage lifting pump 4, and is simultaneously introduced with ozone generated by the ozone generator 7; ozone enters a titanium plate aeration disc 6 at the bottom of the ozone oxidation tower 5 through a communicating pipe, so that the concentration and the chromaticity of pollutants are effectively reduced and the biodegradability of wastewater is improved through ozone oxidation; the mass transfer process of the ozone is strengthened by adopting a combined form of a titanium plate aeration disc 6 and a ceramsite packing layer 10. The ozone oxidation effluent automatically flows into the bottom of the second intermediate water tank 12 through the communicating pipe. Then the sewage is pressurized by a second sewage lifting pump 14 and sent to a biological activated carbon filter 17 through a communicating pipe for biological adsorption filtration, so that the concentration and the chromaticity of pollutants are further reduced, and finally the effluent reaches the standard and is discharged or recycled; the blast aeration device 16 is used for supplying oxygen to the biological activated carbon filter 17; the activated carbon filler layer 19 in the biological activated carbon filter 17 is periodically back flushed by a back flushing pipeline 20 in a water flushing mode so as to ensure the effective use of the equipment.
The utility model discloses monitoring facilities such as flowmeter, level gauge among the device real-time supervision sewage treatment device and operating system. Through insert each electrical apparatus part in the PLC controlling means, according to the reasonable control of processing procedure can be convenient realization intelligent control, the efficiency of convenient monitoring water treatment simultaneously.
The utility model discloses the structure adopts the whole assembled structure, compact structure, and area is little, can carry out convenient overall arrangement according to the in-service use scene, according to the utility model discloses the structure is connected and can full play efficient filter effect, reduces the waste water treatment cost, is applicable to the area that the volume of handling water is big, land used is nervous. Through the rational design of the ozone oxidation device and the biological activated carbon filter, the treatment cost of the printing and dyeing wastewater can be greatly reduced, and the effluent quality can be improved.
The device and the components of the utility model, which do not describe the structure thereof specifically, are common equipment in the wastewater treatment field, and are not repeated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology is characterized in that: comprises a first intermediate water tank (1), an ozone oxidation tower (5), a second intermediate water tank (12) and a biological activated carbon filter (17) which are connected by pipelines in sequence; the ozone oxidation tower (5) is connected with an ozone generator (7) and a tail gas decomposer (11); the top of the biological activated carbon filter (17) is connected with a blast aeration device (16), and the bottom is connected with a back flush pipeline (20).
2. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 1, is characterized in that: a first sewage lifting pump (4) and a first flowmeter (3) are arranged on a connecting pipeline of the first intermediate water tank (1) and the ozone oxidation tower (5); the top of the first middle water tank (1) is provided with a first liquid level meter (2).
3. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 1, is characterized in that: a second sewage lifting pump (14) and a second flowmeter (15) are arranged on a connecting pipeline of the second intermediate water tank (12) and the biological activated carbon filter (17); and a second liquid level meter (13) is arranged at the top of the second middle water tank (12).
4. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 1, is characterized in that: and a ceramsite packing layer (10) and a titanium plate aeration disc (6) are sequentially arranged inside the ozone oxidation tower (5) from top to bottom.
5. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 4, is characterized in that: the ceramsite packing layer (10) is provided with at least two layers.
6. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 1, is characterized in that: an activated carbon filler layer (19) and a perforated aeration pipe (18) are sequentially arranged inside the biological activated carbon filter (17) from top to bottom.
7. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 6, is characterized in that: the activated carbon filler layer (19) is provided with at least two layers.
8. The device for treating the printing and dyeing wastewater based on the ozone catalytic oxidation combination technology as claimed in claim 1, is characterized in that: the air inlet of the ozone generator (7) is sequentially connected with an air source supply device (9) and an air purification device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021347271.1U CN213388216U (en) | 2020-07-10 | 2020-07-10 | Device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021347271.1U CN213388216U (en) | 2020-07-10 | 2020-07-10 | Device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology |
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| CN213388216U true CN213388216U (en) | 2021-06-08 |
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| CN202021347271.1U Active CN213388216U (en) | 2020-07-10 | 2020-07-10 | Device for treating printing and dyeing wastewater based on ozone catalytic oxidation combined technology |
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| CN (1) | CN213388216U (en) |
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- 2020-07-10 CN CN202021347271.1U patent/CN213388216U/en active Active
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