CN210544342U - Odor ultra-clean emission treatment device for urban sewage treatment plant - Google Patents
Odor ultra-clean emission treatment device for urban sewage treatment plant Download PDFInfo
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- CN210544342U CN210544342U CN201921446132.1U CN201921446132U CN210544342U CN 210544342 U CN210544342 U CN 210544342U CN 201921446132 U CN201921446132 U CN 201921446132U CN 210544342 U CN210544342 U CN 210544342U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model relates to an odor ultra-clean emission treatment device of urban sewage treatment plant, including the preoxidation washing box that has hollow many face ball packing layer, the ozone catalytic oxidation box that has ozone catalytic oxidation and the little electrolysis of iron charcoal mixed packing layer, the biological washing box that has the bamboo charcoal packing layer, bottom one side of preoxidation washing box is provided with the waste gas air inlet, the top of preoxidation washing box is linked together with the top of ozone catalytic oxidation box, the bottom of ozone catalytic oxidation box and the bottom of biological washing box are linked together, the top of biological washing box is provided with the waste gas outlet. The beneficial effects are that: the device combines ozone oxidation, ozone catalytic oxidation, micro-electrolysis oxidation and biological treatment processes, greatly improves the pretreatment efficiency, has concise flow, convenient operation management, low cost and reliable operation, is not only suitable for odor treatment of urban sewage treatment plants, but also suitable for waste gas treatment of industrial sewage treatment plants and waste gas treatment of partial industrial enterprises.
Description
Technical Field
The utility model relates to a waste gas treatment field especially relates to an odor ultra-clean discharges processing apparatus of municipal sewage treatment plant.
Background
Along with the continuous expansion of urban construction land, some sewage plants originally located in suburbs are gradually surrounded by urban areas, and the sites are closer to residential living areas. The odor emitted by the sewage in the process of conveying and treating affects the normal life of surrounding residents. In addition, as the environmental awareness of people is gradually strengthened due to the continuous improvement of living standard, the requirement of sewage plant workers on the quality of working environment is higher and higher. The problem of deodorization in sewage treatment plants has therefore attracted increasing attention.
The main components of the odor of the urban sewage treatment plant can be divided into three categories: sulfur-containing compounds (hydrogen sulfide, methyl mercaptan, methyl sulfide, etc.); nitrogen-containing compounds (ammonia, diamines, methyl indole, etc.); carbon, hydrogen, oxygen, etc. (lower alcohols, aldehydes, fatty acids, etc.).
At present, the mature scheme for treating the odor of a sewage treatment plant mainly comprises three technologies of chemical agent washing absorption, ultraviolet light and plasma oxidation and biological deodorization.
The chemical agents are used for washing for the longest time, most of early deodorization is carried out by acid-base neutralization or oxidation on odor molecules by adopting sulfuric acid, sodium hypochlorite, liquid alkali and the like, but the chemical agents are used less at present due to the defects of secondary pollution, dangerousness in the operation of acid-base agents and the like caused by high operation cost.
The photocatalysis, photolysis and plasma oxidation technology mainly depends on superoxide radical generated by inputting energy and emitting high-energy positive and negative ions to directly oxidize and treat odor molecules, the main action mechanism is oxidative decomposition, the technology has higher removal efficiency on micromolecule organic matters such as hydrogen sulfide and the like, but the technology has lower removal efficiency on ammonia gas and other macromolecular malodorous substances, the energy consumption is higher, and the generated by-products (such as ozone) can cause certain influence on ambient air.
The biological method is the most common means for treating odor of a sewage treatment plant at present, has the advantages of high removal efficiency, low operating cost and the like, and has the main mechanism that malodorous molecules are removed by utilizing biodegradation, the biological method has very high removal efficiency on micromolecular organic matters such as hydrogen sulfide, ammonia gas and the like, the highest removal rate can reach more than 90 under normal air inlet concentration, and the removal rate can be further improved to more than 95 percent by controlling the retention time and the air inlet concentration. Biological deodorization is widely applied to sewage treatment plants, however, the occupied area of biological deodorization is large, the retention time is generally required to be more than 20s, the biological deodorization is a great problem for the construction of sewage treatment plants with tense land, and the important research direction is to reduce the occupied area of biological deodorization facilities as far as possible. In addition, with the development of urban economy, part of industrial wastewater is inevitably discharged into municipal pipelines, organic waste gas (VOC) different from the traditional inorganic waste gas such as hydrogen sulfide, ammonia gas and the like is possibly generated in the sewage treatment process, and other trace refractory organic matters exist in front of a biochemical system, so that the technical challenge is actually provided for various deodorization processes such as biological deodorization and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above problem that prior art exists, provide a municipal sewage treatment plant foul smell ultra-clean discharges processing apparatus.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides an urban sewage treatment plant foul smell ultra-clean discharges processing apparatus, is including the preoxidation washing box that has hollow polyhedral ball packing layer, the ozone catalytic oxidation box that has ozone catalytic oxidation and iron-carbon micro-electrolysis mixed packing layer, the biological washing box that has the bamboo charcoal packing layer, bottom one side of preoxidation washing box is provided with the waste gas air inlet, the top of preoxidation washing box is linked together with the top of ozone catalytic oxidation box, the bottom of ozone catalytic oxidation box is linked together with the bottom of biological washing box, the top of biological washing box is provided with the waste gas outlet.
The device is characterized by further comprising a first circulating water tank, wherein a first water pump is installed in the first circulating water tank, a group of first spraying devices are respectively arranged at the tops of the pre-oxidation washing tank body and the ozone catalytic oxidation tank body, a first water receiving tank is respectively arranged at the bottoms of the pre-oxidation washing tank body and the ozone catalytic oxidation tank body, the two first water receiving tanks are respectively communicated with the first circulating water tank through pipelines, a water outlet of the first water pump is respectively communicated with the two groups of first spraying devices through pipelines, and an oxidant supplementing pipe, a water supplementing pipe and an overflow pipe are connected to the side face of the first circulating water tank.
Further, the oxidant supplemented in the oxidant supplementing pipe is hydrogen peroxide.
The biological washing device is characterized by further comprising a second circulating water tank, a second water pump is installed in the second circulating water tank, two groups of second spraying devices are arranged at the top of the biological washing tank body, a second water receiving tank is arranged at the bottom of the biological washing tank body and communicated with the second circulating water tank through a pipeline, a water outlet of the second water pump is communicated with the two groups of second spraying devices through a pipeline, and an oxidant supplementing pipe, a water supplementing pipe and an overflow pipe are connected to the side face of the second circulating water tank.
Further, the bottom of the pre-oxidation washing box body is also provided with an ozone gas conveying pipe, and the ozone gas conveying pipe is externally connected with an ozone generator.
Further, the hollow multi-face ball packing layer is formed by filling a plurality of hollow multi-face ball fillers in a pre-oxidation washing box body, the ozone catalytic oxidation and iron carbon micro-electrolysis mixed packing layer is formed by filling ozone catalytic oxidation fillers and iron carbon micro-electrolysis fillers in the ozone catalytic oxidation box body after being mixed, and the bamboo charcoal packing layer is formed by filling bamboo charcoal in the biological washing box body.
Furthermore, the ozone catalytic oxidation filler takes composite porous high-strength silicon-aluminum as a catalytic carrier, and an ozone decomposition catalyst which is not easy to run off is doped on the catalytic carrier; the iron-carbon micro-electrolysis filler is prepared by mainly using iron and carbon and doping trace noble metals and rare earth metals.
Further, pre-oxidation washing box, ozone catalytic oxidation box, biological washing box all include the box that is the cuboid of being made by glass steel, vertical support square steel, the horizontal support square steel of rigid coupling on vertical support square steel top, the plastic grid board of fixed mounting on horizontal support square steel top of vertical fixed mounting in the bottom half.
The utility model has the advantages that: the device combines ozone oxidation, ozone catalytic oxidation, micro-electrolysis oxidation and biological treatment processes, greatly improves the pretreatment efficiency, has concise flow, convenient operation management, low cost and reliable operation, is not only suitable for odor treatment of urban sewage treatment plants, but also suitable for waste gas treatment of industrial sewage treatment plants and waste gas treatment of partial industrial enterprises.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
As shown in figure 1, the ultra-clean odor emission treatment device for the urban sewage treatment plant comprises a pre-oxidation washing box body 1 with a hollow polyhedral ball packing layer 6, an ozone catalytic oxidation box body 2 with an ozone catalytic oxidation and iron-carbon micro-electrolysis mixed packing layer 7 and a biological washing box body 3 with a bamboo charcoal packing layer 8, wherein a waste gas inlet 4 is formed in one side of the bottom of the pre-oxidation washing box body 1, the top of the pre-oxidation washing box body 1 is communicated with the top of the ozone catalytic oxidation box body 2, the bottom of the ozone catalytic oxidation box body 2 is communicated with the bottom of the biological washing box body 3, and a waste gas outlet 5 is formed in the top of the biological washing box body 3.
Still include first circulation tank 13, install first water pump 14 in the first circulation tank 13, preoxidation washing box 1, ozone catalytic oxidation box 2's top sets up a set of first spray set 12 separately, first spray set 12 includes the water pipe and installs the shower nozzle in the water pipe bottom, preoxidation washing box 1 sets up a first water receiving tank 11 separately with ozone catalytic oxidation box 2's bottom, two first water receiving tanks 11 communicate with first circulation tank 13 through the pipeline respectively, first water pump 14's delivery port communicates with two sets of first spray set 12 through the pipeline respectively, first circulation tank 13's side is connected with oxidant compensating pipe 15, moisturizing pipe 16, overflow pipe 17.
The oxidant supplemented in the oxidant supplementing pipe is hydrogen peroxide.
Still include second circulation tank 20, install second water pump 21 in the second circulation tank 20, the top of biological washing box 3 is provided with two sets of second spray set 19, second spray set 19 includes the water pipe and installs the shower nozzle in the water pipe bottom, the bottom of biological washing box 3 is provided with second water receiving tank 18, second water receiving tank 18 passes through the pipeline and communicates with second circulation tank 20, the delivery port of second water pump 21 communicates with two sets of second spray set 19 through the pipeline respectively, the side of second circulation tank 20 is connected with oxidant replenishment pipe 15, moisturizing pipe 16, overflow pipe 17.
The bottom of the pre-oxidation washing box body 1 is also provided with an ozone gas pipe 9, and the ozone gas pipe 9 is externally connected with an ozone generator 10.
The hollow multi-face ball packing layer 6 is formed by filling a plurality of hollow multi-face ball packing materials in a pre-oxidation washing box body, the ozone catalytic oxidation and iron carbon micro-electrolysis mixed packing layer 7 is formed by filling ozone catalytic oxidation packing materials and iron carbon micro-electrolysis packing materials in an ozone catalytic oxidation box body after being mixed, and the bamboo charcoal packing layer 8 is formed by filling bamboo charcoal in a biological washing box body.
The ozone catalytic oxidation filler takes composite porous high-strength silicon-aluminum as a catalytic carrier, and an ozone decomposition catalyst which is not easy to run off is doped on the catalytic carrier; the iron-carbon micro-electrolysis filler is prepared by mainly using iron and carbon and doping trace noble metals and rare earth metals for sintering.
The pre-oxidation washing box body 1, the ozone catalytic oxidation box body 2 and the biological washing box body 3 respectively comprise a cuboid box body 22 made of glass fiber reinforced plastics, longitudinal supporting square steel 23 vertically and fixedly installed at the bottom of the box body 22, transverse supporting square steel 24 fixedly connected to the top end of the longitudinal supporting square steel 23, and a plastic grid plate 25 fixedly installed at the top end of the transverse supporting square steel 24.
The working principle is as follows: when this super clean emission processing apparatus of urban sewage treatment plant foul smell used, waste gas enters into the pre-oxidation washing box through the waste gas air inlet, utilizes ozone generator to generate ozone simultaneously and lets in the pre-oxidation washing box, and ozone and the foul smell composition in the waste gas take place to react in hollow polyhedral ball packing layer, and the first spray set that delivers to water pump is blowout simultaneously at first water pump, and partial inorganic molecule of solubility can be washed the area by the water and take, and then reduces subsequent load.
After the pre-oxidation, the exhaust gas carries ozone molecules to enter an ozone catalytic oxidation box body, in the ozone catalytic oxidation box body, the ozone is catalyzed by ozone catalytic oxidation filler to be hydroxyl free radicals and active oxygen free radicals, macromolecular organic matters are removed or degraded to be easily degradable micromolecules, meanwhile, in the ozone catalytic oxidation box body, the sprayed circulating water shows weak acidity due to dissolved hydrogen sulfide, and due to the fact that the dissolved hydrogen sulfide and the iron-carbon micro-electrolysis filler generate a 'primary battery' effect, the removal of the organic odor of the difficultly degradable macromolecules is further catalyzed, and the load of subsequent biological treatment is further reduced.
Under the condition of fluctuation of the concentration and components of inlet air, such as under the condition of extreme concentration, by adding oxidants such as hydrogen peroxide and the like into the circulating water tank for pre-oxidation and ozone catalytic oxidation, the pretreatment efficiency of molecules difficult to degrade is enhanced, hydrogen peroxide molecules have certain oxidation performance, and iron ions released by the iron-based catalyst catalyze and generate free radicals to remove pollutants.
The waste gas (ozone is destroyed and little residual) treated by the ozone catalytic oxidation tower enters the biological washing box body, passes through the bamboo charcoal filler, is adsorbed by microorganisms in the bamboo charcoal filler and the bamboo charcoal filler, is further subjected to biodegradation treatment, reaches the emission standard, and is finally discharged through an exhaust pipeline.
In the waste gas treatment process, the total retention time is designed to be within 20s, wherein the pre-washing time in the pre-oxidation washing box body is 1-3s, the retention time in the ozone catalytic oxidation box body is 4-7s, and the biological treatment time in the biological washing box body is 10s, the experimental result shows that the degradation removal efficiency of the pre-oxidation and the ozone catalytic oxidation on odor molecules is close to 60-80%, the removal efficiency of the biological washing box body on target pollutants of waste gas is up to more than 90%, and after the treatment effect of the comprehensive pretreatment, the total treatment efficiency of the whole device on odor of a sewage treatment plant is close to 99%.
Waste liquid after waste gas treatment of the pre-oxidation washing box body, the ozone catalytic oxidation box body and the biological washing box body can enter a waste liquid discharge pipeline through an overflow pipe to be discharged and treated.
The device combines ozone oxidation, ozone catalytic oxidation, micro-electrolysis oxidation and biological treatment processes, greatly improves the pretreatment efficiency, has concise flow, convenient operation management, low cost and reliable operation, is not only suitable for odor treatment of urban sewage treatment plants, but also suitable for waste gas treatment of industrial sewage treatment plants and waste gas treatment of partial industrial enterprises.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a city sewage treatment plant foul smell ultra-clean discharges processing apparatus which characterized in that: the device comprises a pre-oxidation washing box body with a hollow polyhedral ball packing layer, an ozone catalytic oxidation box body with an ozone catalytic oxidation and iron-carbon micro-electrolysis mixed packing layer and a biological washing box body with a bamboo charcoal packing layer, wherein a waste gas inlet is formed in one side of the bottom of the pre-oxidation washing box body, the top of the pre-oxidation washing box body is communicated with the top of the ozone catalytic oxidation box body, the bottom of the ozone catalytic oxidation box body is communicated with the bottom of the biological washing box body, and a waste gas outlet is formed in the top of the biological washing box body.
2. The ultra-clean emission treatment device for odor of the municipal sewage treatment plant according to claim 1, wherein: still include first circulation tank, install first water pump in the first circulation tank, the top of preoxidation washing box, ozone catalytic oxidation box sets up a set of first spray set respectively, the bottom of preoxidation washing box and ozone catalytic oxidation box sets up a first water receiving tank respectively, and two first water receiving tanks communicate with first circulation tank through the pipeline respectively, the delivery port of first water pump communicates with two sets of first spray set through the pipeline respectively, first circulation tank's side is connected with oxidant filling tube, moisturizing pipe, overflow pipe.
3. The ultra-clean emission treatment device for odor of the municipal sewage treatment plant according to claim 2, wherein: the oxidant supplemented in the oxidant supplementing pipe is hydrogen peroxide.
4. The ultra-clean emission treatment device for odor of the municipal sewage treatment plant according to claim 1, wherein: the biological washing device is characterized by further comprising a second circulating water tank, a second water pump is installed in the second circulating water tank, two sets of second spraying devices are arranged at the top of the biological washing tank body, a second water receiving tank is arranged at the bottom of the biological washing tank body and communicated with the second circulating water tank through a pipeline, a water outlet of the second water pump is communicated with the two sets of second spraying devices through pipelines respectively, and an oxidant supplementing pipe, a water supplementing pipe and an overflow pipe are connected to the side face of the second circulating water tank.
5. The ultra-clean emission treatment device for odor of the municipal sewage treatment plant according to claim 1, wherein: the bottom of the pre-oxidation washing box body is also provided with an ozone gas pipe which is externally connected with an ozone generator.
6. The ultra-clean emission treatment device for odor of the municipal sewage treatment plant according to claim 1, wherein: the hollow multi-surface ball packing layer is formed by filling a plurality of hollow multi-surface ball fillers in a pre-oxidation washing box body, the ozone catalytic oxidation and iron carbon micro-electrolysis mixed packing layer is formed by filling ozone catalytic oxidation fillers and iron carbon micro-electrolysis fillers in an ozone catalytic oxidation box body after being mixed, and the bamboo charcoal packing layer is formed by filling bamboo charcoal in a biological washing box body.
7. The ultra-clean emission treatment device for odor of urban sewage treatment plant according to claim 6, characterized in that: the ozone catalytic oxidation filler takes composite porous high-strength silicon-aluminum as a catalytic carrier, and an ozone decomposition catalyst which is not easy to run off is doped on the catalytic carrier; the iron-carbon micro-electrolysis filler is prepared by mainly using iron and carbon and doping trace noble metals and rare earth metals.
8. The ultra-clean emission treatment device for odor of the municipal sewage treatment plant according to any one of claims 1 to 7, characterized in that: the pre-oxidation washing box body, the ozone catalytic oxidation box body and the biological washing box body respectively comprise a box body which is made of glass fiber reinforced plastics and is a cuboid, vertical supporting square steel which is vertically and fixedly installed at the bottom of the box body, transverse supporting square steel which is fixedly connected to the top end of the vertical supporting square steel, and a plastic grid plate which is fixedly installed at the top end of the transverse supporting square steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921446132.1U CN210544342U (en) | 2019-09-02 | 2019-09-02 | Odor ultra-clean emission treatment device for urban sewage treatment plant |
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| CN201921446132.1U CN210544342U (en) | 2019-09-02 | 2019-09-02 | Odor ultra-clean emission treatment device for urban sewage treatment plant |
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| CN210544342U true CN210544342U (en) | 2020-05-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112263905A (en) * | 2020-10-10 | 2021-01-26 | 杭州众衡环境科技有限公司 | Treatment device and method suitable for high-concentration odor |
| CN114028939A (en) * | 2021-11-19 | 2022-02-11 | 西原环保工程(上海)有限公司 | Deep deodorization system for carbon bio-media coupling ozone catalytic oxidation |
-
2019
- 2019-09-02 CN CN201921446132.1U patent/CN210544342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112263905A (en) * | 2020-10-10 | 2021-01-26 | 杭州众衡环境科技有限公司 | Treatment device and method suitable for high-concentration odor |
| CN114028939A (en) * | 2021-11-19 | 2022-02-11 | 西原环保工程(上海)有限公司 | Deep deodorization system for carbon bio-media coupling ozone catalytic oxidation |
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