CN114314803A - Quick oxidation device for micro-polluted water - Google Patents
Quick oxidation device for micro-polluted water Download PDFInfo
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- CN114314803A CN114314803A CN202111627226.0A CN202111627226A CN114314803A CN 114314803 A CN114314803 A CN 114314803A CN 202111627226 A CN202111627226 A CN 202111627226A CN 114314803 A CN114314803 A CN 114314803A
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- water
- pipe
- box
- ozone
- box body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 172
- 230000003647 oxidation Effects 0.000 title claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 31
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000003054 catalyst Substances 0.000 claims abstract description 37
- 238000011010 flushing procedure Methods 0.000 claims abstract description 22
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 9
- 239000003651 drinking water Substances 0.000 claims description 14
- 235000020188 drinking water Nutrition 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 10
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 2
- 239000010865 sewage Substances 0.000 abstract description 12
- 239000011324 bead Substances 0.000 abstract 2
- 238000005086 pumping Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 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
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a micro-polluted water rapid oxidation device, which belongs to the field of sewage treatment and comprises a box body, wherein a water inlet pipe is transversely arranged at the top of an inner cavity of the box body, a T-shaped pipe is arranged at the top of the water inlet pipe, a water distributor is movably sleeved at the top end of the T-shaped pipe, a motor is arranged at the top of the box body, an output shaft of the motor is fixedly connected with the top of the water distributor, a circulating mechanism is arranged at one side of the box body, a flushing mechanism is arranged at the other side of the box body, an ozone catalyst is filled in the middle of the inner cavity of the box body, a cushion layer is transversely arranged at the bottom of the ozone catalyst, a plurality of bidirectional filter caps are vertically arranged at the bottom of the cushion layer, the sewage is sprayed in a bead shape by using the water distributor, meanwhile, the ozone is input into an air inlet pipe, the contact area between the sewage and the ozone is increased, and when the water beads pass through the ozone catalyst, the ozone and is oxidized with high-concentration ozone, the ozone accelerates the oxidation speed under the action of the ozone catalyst, thereby playing a role in quick oxidation.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a micro-polluted water rapid oxidation device.
Background
The micro-polluted source water is the source water with partial water quality indexes exceeding the drinking water source sanitary standard requirements due to the influence of discharged industrial wastewater and domestic sewage, the indexes of ammonia nitrogen, total phosphorus, chromaticity, organic matters and the like on a river water source exceed the drinking water source sanitary standard, the eutrophication of reservoirs and lake water bodies is shown on a lake reservoir water source, algae are bred in a certain period, the water quality is deteriorated, and the odor is obviously increased.
Most of micro-polluted water is oxidized, ozone bubbles in a box body are generally large in the contact process of ozone and a water body, the ozone bubbles cannot be fully mixed with the water body, the ozone sterilization efficiency is general, the contact area of the mixed ozone and a filler is small, and the ozone bubbles cannot be fully contacted, so that a novel micro-polluted rapid oxidation device is provided.
Disclosure of Invention
The invention aims to provide a quick oxidation device for micro-polluted water, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a micro-polluted water rapid oxidation device comprises a box body, wherein a water inlet pipe is transversely arranged at the top of an inner cavity of the box body, a T-shaped pipe is arranged at the top of the water inlet pipe, a water distributor is movably sleeved at the top end of the T-shaped pipe, a sealing ring is movably sleeved on the T-shaped pipe and arranged inside the water distributor, a motor is arranged at the top of the box body, an output shaft of the motor is fixedly connected with the top of the water distributor, a circulating mechanism is arranged at one side of the box body, a flushing mechanism is arranged at the other side of the box body, an ozone catalyst is filled in the middle of the inner cavity of the box body, a cushion layer is transversely arranged at the bottom of the ozone catalyst, a plurality of bidirectional filter caps are vertically arranged at the bottom of the cushion layer, an air inlet pipe is transversely arranged in the inner cavity of the box body, an ozone generator is arranged at one end of the air inlet pipe, and an air outlet nozzle is arranged on the air inlet pipe, the air inlet pipe is positioned below the bidirectional filter cap, and the bottom of the inner cavity of the box body is provided with an L-shaped water outlet pipe.
As a preferred embodiment, the top fixedly connected with swash plate of box, the fixed cover of the vertical installation in top of box has connect communicating pipe, the one end of keeping away from the box of communicating pipe is installed the tail gas destructor.
As a preferred embodiment, circulation mechanism includes drinking-water pipe, a water pump and a drain pipe No. one, a water pump is installed in one side of box, one side at a water pump is installed to a drinking-water pipe, one side that a water pump was kept away from to a drinking-water pipe transversely alternates in the inside of box, the top at a water pump is installed to a drain pipe, the one end that a water pump was kept away from to a drain pipe and the one end fixed connection of inlet tube.
As a preferred embodiment, a sampling box is arranged on the first water drainage pipe, and a detector is arranged on one side of the sampling box.
As a preferred embodiment, wash the mechanism and include drinking-water pipe No. two, No. two water pumps and No. two drain pipes, No. two water pumps are installed in the box and are kept away from one side of circulation mechanism, the one end of No. two drinking-water pipes is installed on No. two water pumps, the other end alternate in the inside of box of No. two drinking-water pipes, the one end of No. two drain pipes is transversely installed on No. two water pumps, the other end alternate in the inside of box of No. two drain pipes.
As a preferable embodiment, one end of the second water discharge pipe, which is far away from the second water pump, is transversely fixedly sleeved with a flushing pipe, and the bottom of the flushing pipe is provided with a plurality of spray heads.
In a preferred embodiment, the flushing pipe is installed below the water inlet pipe, and the flushing pipe is installed above the ozone catalyst.
In a preferred embodiment, the ozone catalyst is in the form of a pellet, and the ozone catalyst is provided with through holes.
In a preferred embodiment, the aperture value of the water distributor is within 2-5 mm, and the material of the water distributor is 316 stainless steel.
In a preferred embodiment, the ratio of the height of the ozone catalyst above the top end of the ozone catalyst in the box body to the height of the ozone catalyst below the bottom end of the bidirectional filter cap in the box body is 5:10: 1.
Compared with the prior art, the invention has the beneficial effects that:
this quick oxidation unit of micro-polluted water utilizes the water-locator to be drop of water form blowout with sewage, inputs ozone at the intake pipe simultaneously, increases the area of contact of sewage and ozone, when the drop of water passes through the ozone catalyst, oxidizes with the ozone of high concentration, and ozone accelerates the oxidation rate under the effect of ozone catalyst to play quick oxidation effect.
Drawings
FIG. 1 is a sectional view of a micro-polluted water rapid oxidation apparatus;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a partial exploded view of a rapid oxidation device for micro-polluted water.
In the figure: 10. a box body; 11. a water inlet pipe; 12. a circulating mechanism; 13. a flushing mechanism; 14. an ozone catalyst; 15. a bidirectional filter cap; 16. an air inlet pipe; 17. an L-shaped water outlet pipe; 18. a communicating pipe; 19. a cushion layer; 20. a motor; 21. a T-shaped pipe; 22. a circular ring block; 23. pulling a rope; 24. a seal ring; 101. a sloping plate; 111. a water distributor; 121. a first water pumping pipe; 122. a water pump I; 123. a first water drainage pipe; 124. a sampling box; 131. a second water pumping pipe; 132. a second water pump; 133. a second water drainage pipe; 134. a flush tube; 135. a spray head; 161. an air outlet nozzle.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1, the present invention provides a rapid oxidation apparatus for micro-polluted water, which includes a tank 10, wherein, in order to treat desalinated ozone, an inclined plate 101 is fixedly connected to the top of the tank 10, a communicating pipe 18 is vertically and fixedly sleeved on the top of the tank 10, a tail gas destructor is installed at one end of the communicating pipe 18 far away from the tank 10, and the desalinated ozone inside the tank 10 is discharged from the communicating pipe 18 to the tail gas destructor for treatment through the inclined plate 101, so as to reduce air pollution.
Referring to fig. 1-3, for uniform water distribution, a water inlet pipe 11 is transversely disposed at the top of an inner cavity of a tank 10, a T-shaped pipe 21 is mounted at the top of the water inlet pipe 11, a water distributor 111 is movably sleeved at the top end of the T-shaped pipe 21, a sealing ring 24 is movably sleeved on the T-shaped pipe 21, a plurality of water outlets are formed in the T-shaped pipe 21, the bottom end of the sealing ring 24 is fixedly connected with the bottom of the inner cavity of the water distributor 111, a motor 20 is mounted at the top of the tank 10, an output shaft of the motor 20 is fixedly connected with the top of the water distributor 111, a circular block 22 is movably sleeved on an output shaft of the motor 20, the circular block 22 is connected with the water distributor 111 through a pull rope 23, when the motor 20 is started, the motor 20 drives the water distributor 111 to rotate, the water distributor 111 rotates more stably under the action of the pull rope 23, and water in the water inlet pipe 11 enters the water distributor 111 through the T-shaped pipe 21 to be discharged, so that water in the tank 10 is uniformly sprayed.
Referring to fig. 1, in order to increase the oxidation speed, a circulation mechanism 12 is disposed on one side of a tank 10, a flushing mechanism 13 is disposed on the other side of the tank 10, an ozone catalyst 14 is filled in the middle of an inner cavity of the tank 10, the ozone catalyst 14 is in a particle ball shape, a through hole is disposed on the ozone catalyst 14, the ozone catalyst 14 is an LCO ozone catalyst 14, the catalyst filling strength is not less than 100N/particle, when micro-polluted water is input into a water inlet pipe 11, water droplets can better flow through the ozone catalyst 14, so that the contact area between ozone and the ozone catalyst 14 is increased, and the oxidation speed is increased.
Referring to fig. 1, in order to perform oxidation for multiple times, a cushion layer 19 is horizontally arranged at the bottom of an ozone catalyst 14, a plurality of bidirectional filter caps 15 are vertically arranged at the bottom of the cushion layer 19, an air inlet pipe 16 is horizontally arranged in an inner cavity of a box body 10, an odor generator is arranged at one end of the air inlet pipe 16, an air outlet nozzle 161 is arranged on the air inlet pipe 16, the air inlet pipe 16 is positioned below the bidirectional filter caps 15, an L-shaped water outlet pipe 17 is arranged at the bottom of the inner cavity of the box body 10, a circulating mechanism 12 comprises a first water pumping pipe 121, a first water pump 122 and a first water outlet pipe 123, the first water pump 122 is arranged at one side of the box body 10, the first water pumping pipe 121 is arranged at one side of the first water pump 122, one side of the first water pumping pipe 121 far away from the first water pump 122 is transversely inserted into the box body 10, the first water outlet pipe 123 is arranged at the top of the first water pump 122, one end of the first water outlet pipe 123 far away from the first water pump 122 is fixedly connected with one end of the water inlet pipe 11, the first water pump 122 is started, the first water pump 122 pumps sewage at the bottom of the inner cavity of the tank 10 through the first water pumping pipe 121, the sewage is discharged into the water inlet pipe 11 from the first water discharging pipe 123 under the action of pressure, water drops are sprayed out of the water distributor 111 on the water inlet pipe 11, the water drops flow into the bottom of the inner cavity of the tank 10 again, and therefore micro-polluted water is subjected to multiple circulation oxidation.
Referring to fig. 1, in order to adjust the cycle number according to the requirement, a sampling box 124 is disposed on a first water discharge pipe 123, a detector is installed on one side of the sampling box 124, the sampling box 124 performs sampling, and the detector detects the COD value of the water in the tank 10, so that the cycle number can be adjusted according to the water quality.
Referring to fig. 1, in order to flush the inside of the tank 10, the flushing mechanism 13 includes a second pumping pipe 131, a second water pump 132 and a second water draining pipe 133, the second water pump 132 is installed on one side of the tank 10 away from the circulating mechanism 12, one end of the second pumping pipe 131 is installed on the second water pump 132, the other end of the second pumping pipe 131 is inserted into the inside of the tank 10, one end of the second water draining pipe 133 is transversely installed on the second water pump 132, the other end of the second water draining pipe 133 is inserted into the inside of the tank 10, one end of the second water draining pipe 133 away from the second water pump 132 is transversely fixedly sleeved with a flushing pipe 134, a plurality of nozzles 135 are installed at the bottom of the flushing pipe 134, the flushing pipe 134 is installed below the water inlet pipe 11, the flushing pipe 134 is installed above the ozone catalyst 14, after the polluted water is repeatedly oxidized in a circulating manner, the second water pump 132 is started, so that the water inside the tank 10 is pumped in through the second pumping pipe 131, the second drain pipe 133 is discharged into the flushing pipe 134 so that the spray head 135 of the flushing pipe 134 can spray water for flushing, thereby flushing the inside of the cabinet 10.
Referring to fig. 1, in order to prevent the internal mechanism of the tank 10 from being corroded by ozone, the aperture value of the water distributor 111 is within 2-5 mm, the material of the water distributor 111 is 316 stainless steel, the internal structure of the tank 10 can be made of 316 stainless steel, and the corrosion resistance and the high-temperature strength of the 316 stainless steel are greatly improved due to the addition of Mo element, so as to prevent the corrosion by ozone.
Referring to fig. 1, the ratio of the height of the upper portion of the top end of the ozone catalyst 14 in the box 10 to the height of the lower portion of the ozone catalyst 14 and the bottom end of the bidirectional filter cap 15 in the box 10 is 5:10:1, so that the time for the wastewater droplets to flow through the ozone catalyst 14 is longer, and the ozone can be better oxidized.
The working principle of the invention is as follows: firstly, inputting slightly polluted water into one end of a water inlet pipe 11, when a motor 20 is started, the motor 20 drives a water distributor 111 to rotate, so that the water in the water inlet pipe 11 enters the water distributor 111 through a T-shaped pipe 21 to be discharged, thereby uniformly spraying water drops of sewage in the box body 10, meanwhile, ozone is conveyed at one end of an air inlet pipe 16, the ozone is conveyed into the box body 10 from an air outlet nozzle 161, when the water drops flow through an ozone catalyst 14, the ozone can better oxidize the slightly polluted water under the action of the ozone catalyst 14, further, the oxidation speed is improved, a first water pump 122 is started, the first water pump 122 pumps the sewage at the bottom of an inner cavity of the box body 10 through a first water pumping pipe 121, the sewage is discharged into the water inlet pipe 11 from a first water discharge pipe 123 under the action of pressure, so that the water distributor 111 on the water inlet pipe 11 is circularly sprayed, the slightly polluted water is repeatedly circularly oxidized, and the ozone in the box body 10 is desalted through an inclined plate 101 after the ozone is oxidized, exhaust gas destructor is arranged from communicating pipe 18 and is handled, sample at sampling box 124, detect the inside water COD value of box 10 through the detector, thereby can be according to water quality control cycle number of times, after the oxidation is accomplished, start No. two water pumps 132, let the inside water of box 10, through No. two suction pipe 131 suctions, utilize No. two drain pipes 133 to arrange into flushing pipe 134, make shower nozzle 135 on flushing pipe 134 can the water spray wash, thereby wash the inside of box 10, the inside water of rethread L type outlet pipe 17 is discharged with box 10.
The above-described embodiments of the present invention are intended to be illustrative only and not limiting, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a quick oxidation unit of little contaminated water, includes box (10), its characterized in that: the water distributor is characterized in that a water inlet pipe (11) is transversely arranged at the top of an inner cavity of the box body (10), a T-shaped pipe (21) is installed at the top of the water inlet pipe (11), a water distributor (111) is movably sleeved at the top end of the T-shaped pipe (21), a sealing ring (24) is movably sleeved on the T-shaped pipe (21), the sealing ring (24) is arranged inside the water distributor (111), a motor (20) is installed at the top of the box body (10), an output shaft of the motor (20) is fixedly connected with the top of the water distributor (111), a circulating mechanism (12) is arranged on one side of the box body (10), a flushing mechanism (13) is arranged on the other side of the box body (10), an ozone catalyst (14) is filled in the middle of the inner cavity of the box body (10), a cushion layer (19) is transversely arranged at the bottom of the ozone catalyst (14), and a plurality of two-way filter caps (15) are vertically installed at the bottom of the cushion layer (19), the inner chamber of box (10) transversely is provided with intake pipe (16), the ozone generator is installed to the one end of intake pipe (16), install shower nozzle (161) of giving vent to anger on intake pipe (16), intake pipe (16) are located the below of two-way cap (15) of straining, L type outlet pipe (17) are installed to the bottom of box (10) inner chamber.
2. The micro-polluted water rapid oxidation device according to claim 1, wherein: the top fixedly connected with swash plate (101) of box (10), the fixed cover of the vertical installation in top of box (10) has connect communicating pipe (18), the tail gas destructor is installed to the one end that box (10) were kept away from in communicating pipe (18).
3. The micro-polluted water rapid oxidation device according to claim 1, wherein: circulating mechanism (12) are including drinking-water pipe (121), a water pump (122) and drain pipe (123) No. one, one side at box (10) is installed in water pump (122), one side at a water pump (122) is installed in drinking-water pipe (121), one side that a water pump (122) was kept away from in drinking-water pipe (121) transversely alternates in the inside of box (10), the top at a water pump (122) is installed in drain pipe (123), the one end of a water pump (122) and the one end fixed connection of inlet tube (11) are kept away from to a drain pipe (123).
4. The micro-polluted water rapid oxidation device according to claim 3, wherein: be provided with sampling box (124) on drain pipe (123), the detector is installed to one side of sampling box (124).
5. The micro-polluted water rapid oxidation device according to claim 1, wherein: wash mechanism (13) including No. two drinking-water pipes (131), No. two water pump (132) and No. two drain pipes (133), No. two water pump (132) are installed in one side of keeping away from circulating mechanism (12) in box (10), the one end of No. two drinking-water pipes (131) is installed on No. two water pump (132), the other end of No. two drinking-water pipes (131) alternates in the inside of box (10), the one end of No. two drain pipes (133) is transversely installed on No. two water pump (132), the other end of No. two drain pipes (133) alternates in the inside of box (10).
6. The micro-polluted water rapid oxidation device according to claim 5, wherein: the end, far away from No. two water pump (132), of No. two drain pipes (133) transversely fixes and connects washing pipe (134), a plurality of shower nozzle (135) are installed to the bottom of washing pipe (134).
7. The micro-polluted water rapid oxidation device according to claim 6, wherein: the flushing pipe (134) is arranged below the water inlet pipe (11), and the flushing pipe (134) is arranged above the ozone catalyst (14).
8. The micro-polluted water rapid oxidation device according to claim 1, wherein: the ozone catalyst (14) is in a particle ball shape, and through holes are formed in the ozone catalyst (14).
9. The micro-polluted water rapid oxidation device according to claim 1, wherein: the aperture value of the water distributor (111) is within 2-5 mm, and the water distributor (111) is made of 316 stainless steel.
10. The micro-polluted water rapid oxidation device according to claim 1, wherein: the height ratio of the upper part of the top end of the ozone catalyst (14) in the box body (10) to the lower part of the ozone catalyst (14) and the bottom end of the bidirectional filter cap (15) in the box body (10) is 5:10: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111627226.0A CN114314803A (en) | 2021-12-28 | 2021-12-28 | Quick oxidation device for micro-polluted water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111627226.0A CN114314803A (en) | 2021-12-28 | 2021-12-28 | Quick oxidation device for micro-polluted water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114314803A true CN114314803A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111627226.0A Pending CN114314803A (en) | 2021-12-28 | 2021-12-28 | Quick oxidation device for micro-polluted water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114314803A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774689A (en) * | 2010-02-08 | 2010-07-14 | 张华� | Multi-point self-rotating water-distributing device |
| CN101775351A (en) * | 2010-02-08 | 2010-07-14 | 张华� | Novel vertical flexible covering film anaerobic fermentation device |
| CN207645964U (en) * | 2018-01-08 | 2018-07-24 | 金风环保有限公司 | A kind of novel combination type multi-phase catalytic ozonation device |
| CN108821422A (en) * | 2018-06-29 | 2018-11-16 | 中电环保股份有限公司 | A kind of device improving wastewater biochemical |
-
2021
- 2021-12-28 CN CN202111627226.0A patent/CN114314803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774689A (en) * | 2010-02-08 | 2010-07-14 | 张华� | Multi-point self-rotating water-distributing device |
| CN101775351A (en) * | 2010-02-08 | 2010-07-14 | 张华� | Novel vertical flexible covering film anaerobic fermentation device |
| CN207645964U (en) * | 2018-01-08 | 2018-07-24 | 金风环保有限公司 | A kind of novel combination type multi-phase catalytic ozonation device |
| CN108821422A (en) * | 2018-06-29 | 2018-11-16 | 中电环保股份有限公司 | A kind of device improving wastewater biochemical |
Non-Patent Citations (1)
| Title |
|---|
| 曾永刚等, 电子科技大学出版社 * |
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Application publication date: 20220412 |
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