CN109574196B - Integrated efficient energy-saving sewage advanced treatment device - Google Patents
Integrated efficient energy-saving sewage advanced treatment device Download PDFInfo
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- CN109574196B CN109574196B CN201910080096.XA CN201910080096A CN109574196B CN 109574196 B CN109574196 B CN 109574196B CN 201910080096 A CN201910080096 A CN 201910080096A CN 109574196 B CN109574196 B CN 109574196B
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- 239000010865 sewage Substances 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 165
- 238000006243 chemical reaction Methods 0.000 claims abstract description 76
- 230000001590 oxidative effect Effects 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- -1 manganese metals Chemical class 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- MUBKMWFYVHYZAI-UHFFFAOYSA-N [Al].[Cu].[Zn] Chemical compound [Al].[Cu].[Zn] MUBKMWFYVHYZAI-UHFFFAOYSA-N 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 91
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000010517 secondary reaction Methods 0.000 description 2
- 101100410783 Arabidopsis thaliana PXG2 gene Proteins 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides an integrated high-efficiency energy-saving sewage advanced treatment device, which comprises an inner cylinder body and an outer cylinder body, wherein the inner region of the inner cylinder body is an effective reaction region, the region between the inner cylinder body and the outer cylinder body is a two-effective reaction region, a water seal pressure gas collecting hood is arranged above the inner cylinder body, an oxidizing gas inlet and a water outlet of a circulating system are arranged on the side wall of the lower part of the outer cylinder body, and the oxidizing gas inlet is led into an effective reaction zone through an air inlet pipeline; a water outlet is arranged on the side wall of the upper part of the outer cylinder body, and a water inlet is arranged on the water seal pressure gas collecting hood or the inner cylinder body; the water seal pressure gas collecting hood is provided with a gas recovery port, the top of the outer cylinder body is provided with a residual gas discharge port; the first-effect reaction zone is provided with a water inlet of a circulating system, and the water inlet of the circulating system is communicated with a water outlet of the circulating system. The water seal pressure gas collecting hood forms water and gas cross flow in the water seal pressure gas collecting hood, so that the reaction efficiency of gas and sewage is enhanced, and the cross flow mode can effectively increase the probability of contact reaction of oxidizing gas and pollutants in the sewage, thereby enhancing the reaction effect.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to an integrated efficient energy-saving sewage advanced treatment device.
Background
The industrial sewage, domestic sewage and surface water often cannot meet the treatment requirements after being treated by biochemical treatment, precipitation and other process equipment. The sewage is often micro-polluted sewage, and the sewage has the problems of difficult degradation of organic matters or excessive standard of ammonia nitrogen (especially organic nitrogen), total phosphorus (especially organic phosphorus), iron, manganese, phenols, benzene rings, cyanide, chromaticity and the like. The prior process equipment for treating the sewage adopts more advanced oxidation, such as Fenton oxidation, iron-carbon micro-electrolysis, electrocatalytic oxidation, oxidative gas (such as O3, CL2, CLO2 and the like) catalytic oxidation and the like, and the technologies have the problems of high energy consumption and large investment, thereby bringing heavy burden to users. Fenton oxidation and iron-carbon micro-electrolysis are carried out by adjusting the PH value to react under an acidic condition, and then adjusting the PH value to coagulate under an alkaline condition, so that the consumption of acid and alkali is large, and the operation cost is high. The electrocatalytic oxidation of the polar plate is expensive and is a consumable product, and has the problems of competing side reactions, polar plate pollution collection and the like in operation, leading to unstable treatment effect, high operation cost and the like. The catalytic oxidation of the oxidizing gas of the traditional equipment is generally one-time reaction, residual gas containing a large amount of active ingredients after one-time reaction is directly discharged out of the equipment body without being utilized, and the contact mode of the gas and the water is mostly concurrent, so that the reaction speed of the gas and the water is slow, and the utilization rate of the gas and the water is not high; the incomplete reaction of the effective gas and sewage causes resource waste, resulting in increased energy consumption. Conventional oxidative gas catalytic oxidation apparatuses are limited in practical applications.
Disclosure of Invention
The invention aims to: the invention aims to provide an integrated efficient energy-saving sewage advanced treatment device aiming at the defects of the prior art.
The invention has the innovation point that the water seal pressure gas collecting hood collects the gas which is not completely reacted in the first-effect reaction zone and then participates in the reaction of the second-effect reactor, thereby fully utilizing the effective gas.
The technical scheme is as follows: in order to achieve the above object, the present invention is specifically realized as follows: an integrated high-efficiency energy-saving sewage advanced treatment device comprises an inner cylinder body and an outer cylinder body, wherein an inner region of the inner cylinder body is an effective reaction region, a region between the inner cylinder body and the outer cylinder body is a two-effect reaction region, the height of the inner cylinder body is lower than that of the outer cylinder body, and the top of the inner cylinder body is opened; a water seal pressure gas-collecting hood is arranged above the inner cylinder body, the water seal pressure gas-collecting hood is a hood body with an opening at the bottom, and a gap exists between the bottom of the water seal pressure gas-collecting hood and the top of the inner cylinder body; a superposition area exists between the projection of the bottom of the water seal pressure gas-collecting hood on the horizontal plane and the projection of the top of the inner cylinder on the horizontal plane; an oxidizing gas inlet and a circulating system water outlet are arranged on the side wall of the lower part of the outer cylinder body, and the oxidizing gas inlet is led into the first-effect reaction zone through an air inlet pipeline; a water outlet is arranged on the side wall of the upper part of the outer cylinder body, and the height of the water outlet is higher than or equal to the height of the bottom of the water seal pressure gas collecting hood; a water inlet is arranged on the water seal pressure gas collecting hood or the inner cylinder body, and the water seal pressure gas collecting hood or the inner cylinder body is communicated with the outside of the outer cylinder body from the outer cylinder body wall body; the top of the water seal pressure gas collecting hood is provided with a gas recovery port and is communicated with the outside of the outer cylinder, and the top of the outer cylinder is provided with a residual gas discharge port; the bottom or the lower side wall of the first-effect reaction zone is provided with a circulating system water inlet, the circulating system water inlet is led out of the outer cylinder body from the side wall or the bottom of the outer cylinder body, the circulating system water inlet is communicated with a circulating system water outlet through a circulating pipeline, a gas-water mixing device and a circulating pump are arranged on the circulating pipeline, the circulating system water inlet, the circulating pump, the gas-water mixing device and the circulating system water outlet are sequentially connected, and the gas recovery port is communicated with the gas-water mixing device through a gas return pipeline.
The invention prolongs the gas-water contact reaction time. The oxidizing gas passes through the first-effect reaction zone, forms water and gas cross flow in the water seal pressure gas collecting hood, enhances the reaction efficiency of the gas and sewage, and the water seal pressure gas collecting hood recovers the gas into the second-effect reaction zone for reaction again. Compared with the traditional similar reactor, the gas-water contact reaction route is prolonged, and the contact time is theoretically 2 times that of the traditional equipment under the condition of equipment with the same height. The reaction time of the device is prolonged, and the oxidizing gas is fully and effectively utilized. The water flow in the first-effect reaction zone flows downwards, the oxidizing gas rises upwards to form gas-water cross-flow contact reaction, and the cross-flow mode can effectively increase the probability of contact reaction of the oxidizing gas and pollutants in sewage, so that the reaction effect is enhanced.
The water seal pressure gas collecting hood is internally provided with a certain pressure, so that part of gas escaping from the first-effect reaction zone can enter the second-effect reaction zone through the bottom of the water seal pressure gas collecting hood, and part of escaping gas is continuously and automatically discharged without causing skimming of equipment.
Further, the cross sections of the inner cylinder body and the outer cylinder body are round, the inner cylinder body is positioned at the center of the outer cylinder body, and the first-effect reaction zone and the second-effect reaction zone share the same bottom. Saving the use of raw materials.
Further, the cross section of the water seal pressure gas-collecting channel is circular, the water seal pressure gas-collecting channel is positioned right above the inner cylinder body, the bottom diameter of the water seal pressure gas-collecting channel is larger than the top diameter of the inner cylinder body, and the top of the inner cylinder body is flush with the bottom of the water seal pressure gas-collecting channel or stretches into the water seal pressure gas-collecting channel. More gas is recycled.
Further, the bottom of the water seal pressure gas collecting hood is a horn mouth.
Further, the top of the water seal pressure gas-collecting hood is welded at the top of the outer barrel, and the residual gas discharge port is positioned outside the area of the water seal pressure gas-collecting hood corresponding to the top of the outer barrel.
Further, the water inlet is arranged at the top of the water seal pressure gas collecting hood and is communicated with the outside of the outer cylinder body from the top of the outer cylinder body, and an atomization nozzle is arranged at the water inlet; the end part of the air inlet pipeline is provided with a plurality of aeration heads, and the aeration heads are micro-nano aeration spray heads.
The sewage is sprayed into the water seal pressure gas-collecting hood through the atomizing nozzle to form water mist. Oxidizing gas blown in by the first effective reaction zone rises from the first effective reaction zone cylinder and then escapes from the first effective reaction zone to rise into the water seal pressure gas collecting hood, and water mist and gas mist form cross-flow contact reaction. The cross flow mode can effectively increase the contact reaction probability of vaporous oxidizing gas and vaporous sewage, thereby increasing the contact reaction probability of oxidizing gas and water.
The rising speed of micro-nano level bubbles is relatively small, so that the contact time of air and water can be effectively prolonged.
Further, a static pipeline mixer is further arranged on the circulating pipeline, the static pipeline mixer is positioned between the circulating pump and the air-water mixing device, and a medicament adding port is formed in the static pipeline mixer.
Selectively adding medicament to create proper condition for reaction, or adding H 2 O 2 Increases the occurrence probability of OH in the two-effect reaction zone, thereby improving the reaction efficiency.
Further, the water outlet of the circulating system is connected with a pressure release pipeline which is an annular pipeline and is positioned between the inner cylinder body and the outer cylinder body, the pressure release pipeline is provided with a plurality of pressure release devices which are arranged at equal intervals.
The gas recovered by the water seal pressure gas collecting hood realizes primary mixing of gas and water through the gas-water mixing device, then is released under pressure through the pressure releaser in the two-effect reaction zone, and is cut again through the pressure releaser to form micro-nano level bubbles which rise, so that the rising speed of the bubbles can be effectively slowed down, and the contact time of effective gas and sewage is prolonged.
Further, a catalyst layer is arranged in the first-effect reaction zone and/or the second-effect reaction zone, a catalyst is arranged in the catalyst layer, and the catalyst is one or more of simple substances or oxides of aluminum, copper, zinc, iron, nickel, titanium and manganese metals.
The catalyst has the function of enhancing the reaction of the oxidizing gas and the sewage, and accelerating the generation of hydroxyl free radicals (OH) in the first-effect reaction zone and the second-effect reaction zone by utilizing the function of the catalyst. The oxidation-reduction potential of OH is 2.8O V, and the oxidation capacity is stronger than that of the original oxidizing gas, so that more effective reaction is realized.
Further, the water seal pressure gas collecting hood and the inner cylinder body are integrally formed, and a plurality of through holes are formed in the joint of the water seal pressure gas collecting hood and the inner cylinder body. The production and the installation are convenient.
The invention has the beneficial effects that: compared with the prior art, the invention has the following advantages:
1. in the invention, the water flow in the first-effect reaction zone flows downwards, the oxidizing gas rises upwards to form gas-water cross-flow contact reaction, and the cross-flow mode can effectively increase the probability of contact reaction between the oxidizing gas and pollutants in sewage, thereby enhancing the reaction effect.
2. The water seal pressure gas collecting hood forms water and gas cross flow in the water seal pressure gas collecting hood, so that the reaction efficiency of gas and sewage is enhanced.
3. The water seal pressure gas collecting hood has certain pressure, so that part of gas escaping from the first-effect reaction zone can enter the second-effect reaction zone through the bottom of the water seal pressure gas collecting hood, and part of escaping gas is continuously and automatically discharged without causing skimming of equipment.
4. The gas recovered by the water seal pressure gas collecting hood realizes primary mixing of gas and water through the gas-water mixing device, then is released under pressure through the pressure releaser in the two-effect reaction zone, and is cut again through the pressure releaser to form micro-nano level bubbles which rise, so that the rising speed of the bubbles can be effectively slowed down, and the contact time of effective gas and sewage is prolonged.
5. According to the invention, the inner cylinder body is arranged in the outer cylinder body, so that the occupied area is effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1.
Fig. 2 is a schematic bottom cross-sectional view of example 1.
Fig. 3 is a schematic structural diagram of embodiment 2.
Fig. 4 is a schematic structural diagram of embodiment 3.
Fig. 5 is a schematic structural diagram of embodiment 4.
Fig. 6 is a schematic structural diagram of embodiment 5.
Fig. 7 is a schematic structural diagram of embodiment 6.
Fig. 8 is a schematic structural diagram of embodiment 7.
Detailed Description
Example 1: as shown in figures 1 and 2, the integrated high-efficiency energy-saving sewage deep treatment device comprises an inner cylinder body 1 and an outer cylinder body 2, wherein the inner area of the inner cylinder body 1 is an effective reaction area 3, the area between the inner cylinder body 1 and the outer cylinder body 2 is a secondary reaction area 4, the cross sections of the inner cylinder body 1 and the outer cylinder body 2 are circular, the inner cylinder body 1 is positioned at the center of the outer cylinder body 2, and the effective reaction area 3 and the secondary reaction area 4 share the same bottom. The first-effect reaction zone 3 and/or the second-effect reaction zone 4 are provided with a catalyst layer 23, the catalyst layer 23 is internally provided with a catalyst, and the catalyst is one or a mixture of a plurality of simple substances or oxides of aluminum, copper, zinc, iron, nickel, titanium and manganese metals. The height of the inner cylinder body 1 is lower than that of the outer cylinder body 2, and the top of the inner cylinder body 1 is opened; a water seal pressure gas-collecting hood 5 is arranged above the inner cylinder body 1, the water seal pressure gas-collecting hood 5 is a hood body with an opening at the bottom, and a gap exists between the bottom of the water seal pressure gas-collecting hood 5 and the top of the inner cylinder body 1; the projection of the bottom of the water seal pressure gas-collecting hood 5 on the horizontal plane and the projection of the top of the inner cylinder 1 on the horizontal plane have a superposition area; the cross section of the water seal pressure gas-collecting channel 5 is circular, the water seal pressure gas-collecting channel 5 is positioned right above the inner cylinder 1, the bottom diameter of the water seal pressure gas-collecting channel 5 is larger than the top diameter of the inner cylinder 1, and the top of the inner cylinder 1 is flush with the bottom of the water seal pressure gas-collecting channel 5. An oxidizing gas inlet 6 and a circulating system water outlet 7 are arranged on the side wall of the lower part of the outer cylinder 2, and the oxidizing gas inlet 6 is led into the first effective reaction zone 3 through an air inlet pipeline 24; the end part of the air inlet pipeline 24 is provided with a plurality of aeration heads 18, and the aeration heads 18 are micro-nano aeration spray heads. A water outlet 8 is arranged on the side wall of the upper part of the outer cylinder 2, and the height of the water outlet 8 is higher than or equal to the height of the bottom of the water seal pressure gas collecting hood 5; a water inlet 9 is arranged on the water seal pressure gas-collecting hood 5 or the inner cylinder 1 and is led out of the outer cylinder 2 from the wall of the outer cylinder 2; preferably, the water inlet 9 is arranged at the top of the water seal pressure gas-collecting channel 5 and is communicated with the outside of the outer cylinder 2 from the top of the outer cylinder 2, and the atomizing nozzle 17 is arranged at the water inlet 9. The top of the water seal pressure gas collecting hood 5 is provided with a gas recovery port 10 which is communicated with the outside of the outer cylinder 2, and the top of the outer cylinder 2 is provided with a residual gas discharge port 11; the top of the water seal pressure gas-collecting hood 5 is welded on the top of the outer cylinder body 2, the residual gas discharge port 11 is positioned in the water seal pressure set the gas hood 5 corresponds to the outside of the area at the top of the outer cylinder 1. The bottom or the lower side wall of the first-effect reaction zone 3 is provided with a circulating system water inlet 12, the circulating system water inlet 12 is led out of the outer cylinder 2 from the side wall or the bottom of the outer cylinder 2, the circulating system water inlet 12 is communicated with a circulating system water outlet 7 through a circulating pipeline 13, a gas-water mixing device 14 and a circulating pump 15 are arranged on the circulating pipeline 13, the circulating system water inlet 12, the circulating pump 15, the gas-water mixing device 14 and the circulating system water outlet 7 are sequentially connected, and the gas recovery port 10 is connected with the gas-water mixing device 14 through a gas return pipeline 16. The circulation pipe 13 is also provided with a static pipe mixer 19, the static pipe mixer 19 is positioned between the circulation pump 15 and the air-water mixing device 14, and the static pipe mixer 19 is provided with a medicament adding port 20. The water outlet 7 of the circulating system is connected with a pressure release pipeline 21, the pressure release pipeline 21 is an annular pipeline and is positioned between the inner cylinder body 1 and the outer cylinder body 2, a plurality of pressure release devices 22 are arranged on the pressure release pipeline 21, and the pressure release devices 22 are arranged at equal intervals.
When in operation, the pressure gas with oxidizing property enters the effective reaction zone 3 from the oxidizing gas inlet 6 through the air inlet pipeline 24, the oxidizing pressure gas is scattered into the effective reaction zone 3 by the aeration head 18 to react with sewage entering the effective reaction zone 3 at the water inlet 9, the water seal pressure gas collecting hood 5 above the effective reaction zone 3 collects reaction escaping gas, and then enters the gas-water mixing device 14 through the gas return pipeline 16 by the gas recovery port 10; the circulating pump 15 extracts sewage in the first-effect reaction zone 3 from the water inlet 12 of the circulating system and enters the static pipeline mixer 19, the static pipeline mixer 19 is used for adding a liquid catalyst or other medicaments to create favorable reaction conditions for the reactor, the sewage is fully mixed by the static pipeline mixer 19 and then enters the gas-water mixing device 14 through the circulating pipeline 13, the gas of the water seal pressure gas-collecting hood 5 is fully mixed with sewage through the negative pressure suction action of the gas-water mixing device 14, the pressurized gas-water mixture enters the pressure release pipeline 21 at the bottom of the secondary reactor 4, and then the pressure of the gas-water mixture is released into the secondary reactor 4 through the pressure release device 22 to react with the sewage again. After flowing through the secondary reactor 4, the residual gas rises to the upper part of the secondary reactor and is discharged through a residual gas discharge port 11; the treated sewage is discharged through the water outlet 8.
Implementation of the embodiments example 2: referring to example 1, the bottoms of the first-effect reaction zone 3 and the second-effect reaction zone 4 are separated.
Example 3: with reference to the embodiment 1, a space exists between the bottom of the water seal pressure gas collecting tank 5 and the top of the inner cylinder body 1, the bottom of the water seal pressure gas collecting hood 5 is not provided with a bell mouth, and the diameter of the inner cylinder body 1 is larger than that of the water seal pressure gas collecting tank 5.
Example 4: with reference to the example 1 of the present invention, the top of the inner cylinder body 1 stretches into the water seal pressure gas collecting hood 5.
Example 5: with reference to embodiment 1, the water inlet 9 is arranged on the inner cylinder 1 and is communicated with the outside of the outer cylinder 2, and an atomization nozzle is not arranged at the water inlet.
Example 6: reference implementation in example 1, the composition of the present invention, the top of the water seal pressure gas-collecting hood top 5 is spaced from the top of the outer cylinder body 2.
Example 7: referring to embodiment 1, the water seal pressure gas collecting hood 5 and the inner cylinder 1 are integrally formed, and a plurality of through holes 25 are formed at the joint of the water seal pressure gas collecting hood 5 and the inner cylinder 1.
Claims (10)
1. The integrated efficient energy-saving sewage deep treatment device comprises an inner cylinder body and an outer cylinder body, wherein an inner region of the inner cylinder body is an effective reaction region, and a region between the inner cylinder body and the outer cylinder body is a two-effect reaction region; a water seal pressure gas-collecting hood is arranged above the inner cylinder body, the water seal pressure gas-collecting hood is a hood body with an opening at the bottom, and a gap exists between the bottom of the water seal pressure gas-collecting hood and the top of the inner cylinder body; a superposition area exists between the projection of the bottom of the water seal pressure gas-collecting hood on the horizontal plane and the projection of the top of the inner cylinder on the horizontal plane; an oxidizing gas inlet and a circulating system water outlet are arranged on the side wall of the lower part of the outer cylinder body, the oxidizing gas inlet is led into the effective reaction zone through the gas inlet pipeline; a water outlet is arranged on the side wall of the upper part of the outer cylinder body, and the height of the water outlet is higher than or equal to the height of the bottom of the water seal pressure gas collecting hood; a water inlet is arranged on the water seal pressure gas collecting hood or the inner cylinder body and is communicated with the outside of the outer cylinder body; the top of the water seal pressure gas collecting hood is provided with a gas recovery port and is communicated with the outside of the outer cylinder body from the top of the outer cylinder body, and the top of the outer cylinder body is provided with a residual gas discharge port; the bottom or the lower side wall of the first-effect reaction zone is provided with a circulating system water inlet, the circulating system water inlet is led out of the outer cylinder body from the side wall or the bottom of the outer cylinder body, the circulating system water inlet is communicated with a circulating system water outlet through a circulating pipeline, a gas-water mixing device and a circulating pump are arranged on the circulating pipeline, the circulating system water inlet, the circulating pump, the gas-water mixing device and the circulating system water outlet are sequentially connected, and the gas recovery port is communicated with the gas-water mixing device through a gas return pipeline.
2. The integrated high-efficiency energy-saving sewage advanced treatment device according to claim 1, wherein the cross sections of the inner cylinder body and the outer cylinder body are round, the inner cylinder body is positioned at the center of the outer cylinder body, and the first-effect reaction zone and the second-effect reaction zone share the same bottom.
3. The integrated efficient energy-saving sewage advanced treatment device according to claim 2, wherein the cross section of the water seal pressure gas-collecting hood is circular, the water seal pressure gas-collecting hood is positioned right above the inner cylinder body, the bottom diameter of the water seal pressure gas-collecting hood is larger than the top diameter of the inner cylinder body, and the top of the inner cylinder body is flush with the bottom of the water seal pressure gas-collecting hood or stretches into the water seal pressure gas-collecting hood.
4. The integrated high-efficiency energy-saving sewage deep treatment device according to claim 3, wherein the bottom of the water seal pressure gas-collecting hood is a horn mouth.
5. The integrated high-efficiency energy-saving sewage advanced treatment device according to claim 1, wherein the top of the water seal pressure gas-collecting channel is welded at the top of the outer cylinder body, and the residual gas discharge port is positioned outside the area of the water seal pressure gas-collecting channel corresponding to the top of the outer cylinder body.
6. The integrated efficient energy-saving sewage deep treatment device according to claim 1, wherein the water inlet is arranged at the top of the water seal pressure gas collecting hood and passes out of the outer cylinder body from the top of the outer cylinder body, and an atomization nozzle is arranged at the water inlet; the end part of the air inlet pipeline is provided with a plurality of aeration heads, and the aeration heads are micro-nano aeration spray heads.
7. The integrated efficient and energy-saving sewage deep treatment device according to claim 1, wherein the circulating pipeline is further provided with a static pipeline mixer, the static pipeline mixer is positioned between the circulating pump and the air-water mixing device, and the static pipeline mixer is provided with a medicament adding port.
8. The integrated efficient energy-saving sewage deep treatment device according to claim 1, wherein the water outlet of the circulating system is connected with a pressure release pipeline, the pressure release pipeline is an annular pipeline and is positioned between the inner cylinder body and the outer cylinder body, and a plurality of pressure release devices are arranged on the pressure release pipeline and are arranged at equal intervals.
9. The integrated high-efficiency energy-saving sewage advanced treatment device according to claim 1, wherein a catalyst layer is arranged in the first-effect reaction zone and/or the second-effect reaction zone, a catalyst is arranged in the catalyst layer, and the catalyst is one or more of simple substances or oxides of aluminum, copper, zinc, iron, nickel, titanium and manganese metals.
10. The integrated high-efficiency energy-saving sewage advanced treatment device according to claim 1, wherein the water seal pressure gas-collecting hood and the inner cylinder are integrally formed, and a plurality of through holes are formed at the joint of the water seal pressure gas-collecting hood and the inner cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080096.XA CN109574196B (en) | 2019-01-28 | 2019-01-28 | Integrated efficient energy-saving sewage advanced treatment device |
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