CN113929204A - Micro-interface enhanced ultra-efficient wastewater ozone treatment device and treatment method - Google Patents
Micro-interface enhanced ultra-efficient wastewater ozone treatment device and treatment method Download PDFInfo
- Publication number
- CN113929204A CN113929204A CN202111331164.9A CN202111331164A CN113929204A CN 113929204 A CN113929204 A CN 113929204A CN 202111331164 A CN202111331164 A CN 202111331164A CN 113929204 A CN113929204 A CN 113929204A
- Authority
- CN
- China
- Prior art keywords
- micro
- interface
- ozone
- generator
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 154
- 239000002351 wastewater Substances 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 42
- 239000007789 gas Substances 0.000 claims description 33
- 238000003672 processing method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 25
- 238000004065 wastewater treatment Methods 0.000 abstract description 10
- 238000000746 purification Methods 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 16
- 230000003647 oxidation Effects 0.000 description 14
- 238000007254 oxidation reaction Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/784—Diffusers or nozzles for ozonation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a micro-interface enhanced ultra-efficient wastewater ozone treatment device, which comprises: an ozone generator and a reaction tower; the middle part of the reaction tower is provided with a partition plate; a first treatment area is arranged above the partition plate, and a second treatment area is arranged below the partition plate; the side wall of the first treatment area is connected with a waste water pipeline; a first micro interface unit is arranged in the first processing area, and a second micro interface unit is arranged in the second processing area; an inlet of the ozone generator is connected with an oxygen pipeline, and an outlet of the ozone generator is connected with the first micro-interface unit and the second micro-interface unit respectively; an overflow pipe is arranged in the first treatment area, penetrates through the partition plate and is communicated with the first treatment area and the second treatment area. The micro-interface enhanced ultra-efficient wastewater ozone treatment device provided by the invention has a simple overall structure, can effectively improve the wastewater purification treatment effect, and can realize efficient utilization of ozone, thereby reducing the wastewater treatment cost.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a micro-interface enhanced ultra-efficient wastewater ozone treatment device and a treatment method.
Background
The water resource in China is in short supply, and with the rapid development of industry, the types and the amount of wastewater are rapidly increased, the pollution to water bodies is increasingly wide and serious, and the water environment faces an extremely severe situation, thus threatening the health and safety of human beings. Under the circumstances, a series of policy measures are continuously taken in recent years by the nation, such as the action plan for preventing and treating water pollution, and the water environment remediation is vigorously carried out. The key to water environment treatment and protection lies in the wastewater treatment in the industrial field, and the key to industrial wastewater treatment lies in: 1) source control, starting water saving and emission reduction from optimizing industrial process and improving production technology level; 2) the research and development of waste water purification and cyclic utilization or standard discharge technology are continuously carried out.
Chemical Oxygen Demand (COD)cr) The method is one of main indexes for controlling the total amount of wastewater discharged in China, and the traditional processes of physical, chemical and chemical treatment, oxidation and the like have low removal rate of organic matters difficult to degrade in industrial wastewater, and usually have removal rate of only 20-30%, so that the method for improving the removal rate of the organic matters difficult to degrade in the industrial wastewater becomes a difficult problem to be solved urgently.
Ozone is an environment-friendly oxidant because of strong oxidizing property and the reaction product of the ozone is oxygen which is diffused into air, so that secondary pollution is avoided. Ozone is widely applied in the field of sewage treatment, in particular to the treatment of high-stability and difficult-to-degrade organic pollutants in wastewater.
The ozone reacts with the contaminants in two ways, direct and indirect. The direct reaction is that ozone directly oxidizes pollutants, the action mechanism of the direct reaction is mainly based on the strong oxidizing property of ozone, the direct reaction belongs to selective reaction, the reaction is slow, and the rate constant is very low; the indirect reaction is that ozone generates a large amount of hydroxyl free radicals (OH) with stronger activity and oxidation performance in the treatment process, thereby having higher pollutant degradation and removal capacity and faster reaction rate, belonging to non-selectionAnd (4) performing a sexual reaction. From the characteristics of two modes of reaction of ozone and organic matters in water, the indirect reaction of the ozone has more important significance, and is expected to become a high-efficiency COD removal method when the wastewater which is difficult to oxidize and degrade is treatedcrThe technique of (1).
Although ozone oxidation technology has been developed for many years, it has been used for a few years or has a poor effect in an actual industrial wastewater treatment system, and its main problems and causes are summarized as follows:
(1) at present, the common ozone preparation technology takes air or pure oxygen as a raw material, adopts a corona discharge method, and has high energy consumption, low yield and large ozone quality fluctuation, thereby leading the cost of the ozone oxidation technology to be high.
(2) Ozone is lower in aquatic solubility, and the mass transfer effect of traditional contact device or mode (aeration) is unsatisfactory, causes the absorption efficiency of gas-liquid contact low, has restricted the ozone concentration of participating in the reaction, and then has restricted pollutant treatment effect, and the cost disadvantage of ozone oxidation technique has been aggravated to ozone utilization ratio on the low side.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The first purpose of the invention is to provide a micro-interface enhanced ultra-efficient wastewater ozone treatment device, which has a simple overall structure, and improves the oxidation treatment effect of wastewater by arranging two treatment areas to treat the wastewater; through set up the gas outlet at second treatment zone lateral wall, the unreacted ozone of second treatment zone gets into and continues to participate in the processing to waste water in the first treatment zone, has improved the utilization ratio of ozone, has reduced the waste of ozone, has practiced thrift the cost.
The second purpose of the invention is to provide a micro-interface enhanced ultra-high efficiency wastewater ozone treatment method, which is simple to operate, can effectively improve the wastewater purification treatment effect, and can achieve the utilization rate of ozone over 95 percent, thereby saving the wastewater treatment cost.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the invention provides a micro-interface enhanced ultra-efficient wastewater ozone treatment device, which comprises: an ozone generator and a reaction tower; the middle part of the reaction tower is provided with a partition plate; a first treatment area is arranged above the partition plate, and a second treatment area is arranged below the partition plate;
the side wall of the first treatment area is connected with a waste water pipeline; a first micro interface unit is arranged in the first processing area, a second micro interface unit is arranged in the second processing area,
an inlet of the ozone generator is connected with an oxygen pipeline, and an outlet of the ozone generator is connected with the first micro-interface unit and the second micro-interface unit respectively;
an overflow pipe is arranged in the first treatment area, penetrates through the partition plate and is communicated with the first treatment area and the second treatment area; the wastewater treated in the first treatment area enters the second treatment area through the overflow pipe;
the upper part of the second treatment area is provided with a gas outlet which is connected with the first micro interface unit so as to convey ozone at the top of the second treatment area into the first treatment area; the gas outlet is above the liquid level in the second treatment zone.
Among the prior art, ozone gets into the reaction tower after, because its own is the gaseous state and lower in aqueous solubility, the absorption efficiency of gas-liquid contact is low, and generally only about 40% ozone has participated in the oxidation treatment process of waste water, and a large amount of ozone are direct to be discharged from the reaction tower top, and the ozone low-usage has seriously influenced the treatment effect of waste water, and simultaneously, ozone utilization ratio on the low side has aggravated the cost disadvantage of ozone oxidation technique.
In order to solve the technical problems, the invention provides a micro-interface enhanced ultra-high efficiency wastewater ozone treatment device, which can perform ozone treatment on wastewater twice by arranging a first treatment area and a second treatment area, thereby effectively improving the treatment effect on the wastewater; the overflow pipe is arranged to communicate the first treatment area with the second treatment area, so that the liquid levels in the two treatment areas can be kept balanced, and meanwhile, the wastewater treated by the first treatment area enters the second treatment area through the overflow pipe; through set up first little interface unit and second little interface unit in first treatment area and second treatment area respectively, utilize little interface unit to break the ozone dispersion into micron level microbubble, improved the solubility of ozone in waste water, improved the gas-liquid area of contact between ozone and waste water simultaneously to improve the utilization ratio of ozone, reduced the waste water treatment cost.
Preferably, the first micro-interface unit comprises a first micro-interface generator and a second micro-interface generator, the first micro-interface generator is located above the second micro-interface generator, the first micro-interface generator and the second micro-interface generator are located on the same straight line, a first flow guide pipe is arranged between the first micro-interface generator and the second micro-interface generator, and an outlet of the first micro-interface generator is connected with the second micro-interface generator through the first flow guide pipe; the gas outlet is connected with the first micro-interface generator, and the ozone generator is connected with the second micro-interface generator. Through setting up first little interfacial generator and second little interfacial generator to utilize first honeycomb duct to connect it, can carry out twice dispersion breakage with ozone, improve the broken effect of dispersion to ozone, thereby improve the gas-liquid area of contact of ozone and waste water.
Preferably, the second micro-interface unit comprises a third micro-interface generator, a fourth micro-interface generator and a second flow guide pipe, the third micro-interface generator is positioned above the fourth micro-interface generator, the third micro-interface generator and the fourth micro-interface generator are positioned on the same straight line, and an outlet of the third micro-interface generator is connected with the fourth micro-interface generator through the second flow guide pipe; the third micro-interface generator is connected with the ozone generator. Through setting up third micro-interface generator and fourth micro-interface generator to utilize the second honeycomb duct to connect it, can carry out twice dispersion breakage with ozone, improve the broken effect of dispersion to ozone, thereby improve the gas-liquid area of contact of ozone and waste water.
Preferably, the top inlet of the overflow pipe is higher than the first micro interface unit and is positioned below the liquid level in the first treatment area, and the bottom outlet is lower than the second micro interface unit. The waste water before treatment contains more organic matters, and the density of the waste water is higher than that of the waste water after treatment, so the waste water after treatment can float to the top, and the waste water at the top overflows into the second treatment area through the inlet of the overflow pipe.
Preferably, the wastewater line is disposed in a vertical direction between the first micro-interface generator and the second micro-interface generator.
Preferably, a first circulation pipeline is arranged on the side of the first treatment area, an inlet of the first circulation pipeline is connected with the bottom of the first treatment area, and an outlet of the first circulation pipeline is connected with the first micro-interface generator.
Preferably, a second circulating pipeline is arranged on one side of the second treatment area; the inlet of the second circulating pipeline is connected with the bottom of the second treatment area; the outlet is connected to the third micro-interface generator.
Preferably, the amount of ozone entering the second reaction zone from the ozone generator is greater than the amount of ozone entering the first reaction zone from the ozone generator. Further, the ratio of the amount of ozone entering the second reaction zone from the ozone generator to the amount of ozone entering the first reaction zone from the ozone generator is 1: 9.
Preferably, a liquid outlet is formed in the side wall of the second treatment area, and the liquid outlet is located between the second micro interface unit and the liquid level in the second treatment area along the vertical direction.
Preferably, the top of the first treatment area is connected with a tail gas pipeline. Oxygen generated after the ozone reacts with the wastewater and carbon dioxide generated in the oxidation process are discharged from a tail gas pipeline.
In the invention, wastewater enters a first treatment area through a wastewater pipeline, meanwhile, ozone conveyed by an ozone generator enters a first micro-interface unit, is crushed into micro-bubbles at the micron level through a micro-interface, and is mixed with the wastewater to form gas-liquid emulsion, and the ozone micro-bubbles are contacted with the wastewater to carry out oxidation treatment on pollutants in the wastewater; the wastewater treated by the first treatment area flows into the second treatment area through an overflow pipe;
meanwhile, after the ozone conveyed by the ozone generator is dispersed and crushed into micro bubbles in the second micro interface unit, the wastewater is continuously treated for the second time, the treated wastewater flows out through the liquid outlet, and the ozone which does not participate in the reaction in the second treatment area enters the first treatment area through the gas outlet to participate in the treatment of the wastewater. Therefore, the treatment effect on the wastewater is improved, the utilization efficiency of the ozone is improved, and the utilization efficiency of the ozone in the reaction system can be improved to 95%.
In fact, the first treatment zone is mainly used for pretreating the wastewater, and the ozone introduced into the first treatment zone is far less than the ozone introduced into the second reaction zone, so that the wastewater in the first treatment zone is kept excessive, the utilization efficiency of the ozone can be improved, and the wastewater is subjected to primary oxidation treatment; the second treatment area is a main reaction area, the introduced ozone is excessive, and is dispersed into micro-bubbles at a micron level under the dispersion and crushing of the second micro-interface unit, so that the gas-liquid contact area of the second treatment area and the micro-bubbles is improved, the treatment effect on the wastewater is ensured, the ozone which does not participate in the reaction enters the first treatment area from a gas outlet at the upper part of the second treatment area, participates in the pretreatment on the wastewater, and the utilization efficiency of the ozone is improved.
According to the invention, on one hand, the ozone is dispersed and crushed into micro bubbles at a micron level through the first micro interface unit and the second micro interface unit, so that the retention time of the ozone in the wastewater is prolonged, and the rising speed of the ozone is slowed down, thereby prolonging the reaction interval of the ozone and the wastewater, improving the ozone utilization rate and the wastewater treatment effect, and reducing the ozone waste; on the other hand, when the generated ozone microbubbles are broken in the wastewater, the energy generated by the breaking can decompose water molecules in the wastewater into active oxygen and active hydroxyl, and the ozone itself is decomposed into oxygen and active oxygen in the wastewater, which have an oxidizing effect on pollutants in the wastewater. Therefore, the invention not only improves the gas-liquid contact area between the ozone and the wastewater by adopting the micro-interface unit, but also improves the oxidation treatment effect of the wastewater by utilizing the crushing of the generated ozone micro-bubbles during crushing, and the treatment efficiency of the invention to the wastewater is improved by the way. Wherein the chemical reaction formula of the ozone and the water is as follows:
O3→O2+O·
H2O→HO·+O·
it will be appreciated by those skilled in the art that the micro-interface generator used in the present invention is described in the prior patents of the present inventor, such as the patents of application numbers CN201610641119.6, CN201610641251.7, CN201710766435.0, CN106187660, CN105903425A, CN109437390A, CN205833127U and CN 207581700U. The detailed structure and operation principle of the micro bubble generator (i.e. micro interface generator) is described in detail in the prior patent CN201610641119.6, which describes that "the micro bubble generator comprises a body and a secondary crushing member, wherein the body is provided with a cavity, the body is provided with an inlet communicated with the cavity, the opposite first end and second end of the cavity are both open, and the cross-sectional area of the cavity decreases from the middle of the cavity to the first end and second end of the cavity; the secondary crushing member is disposed at least one of the first end and the second end of the cavity, a portion of the secondary crushing member is disposed within the cavity, and an annular passage is formed between the secondary crushing member and the through holes open at both ends of the cavity. The micron bubble generator also comprises an air inlet pipe and a liquid inlet pipe. "the specific working principle of the structure disclosed in the application document is as follows: liquid enters the micro-bubble generator tangentially through the liquid inlet pipe, and gas is rotated at a super high speed and cut to break gas bubbles into micro-bubbles at a micron level, so that the mass transfer area between a liquid phase and a gas phase is increased, and the micro-bubble generator in the patent belongs to a pneumatic micro-interface generator.
In addition, the first patent 201610641251.7 describes that the primary bubble breaker has a circulation liquid inlet, a circulation gas inlet and a gas-liquid mixture outlet, and the secondary bubble breaker communicates the feed inlet with the gas-liquid mixture outlet, which indicates that the bubble breakers all need to be mixed with gas and liquid, and in addition, as can be seen from the following drawings, the primary bubble breaker mainly uses the circulation liquid as power, so that the primary bubble breaker belongs to a hydraulic micro-interface generator, and the secondary bubble breaker simultaneously introduces the gas-liquid mixture into an elliptical rotating ball for rotation, thereby realizing bubble breaking in the rotating process, so that the secondary bubble breaker actually belongs to a gas-liquid linkage micro-interface generator. In fact, the micro-interface generator is a specific form of the micro-interface generator, whether it is a hydraulic micro-interface generator or a gas-liquid linkage micro-interface generator, however, the micro-interface generator adopted in the present invention is not limited to the above forms, and the specific structure of the bubble breaker described in the prior patent is only one of the forms that the micro-interface generator of the present invention can adopt.
Furthermore, the prior patent 201710766435.0 states that the principle of the bubble breaker is that high-speed jet flows are used to achieve mutual collision of gases, and also states that the bubble breaker can be used in a micro-interface strengthening reactor to verify the correlation between the bubble breaker and the micro-interface generator; moreover, in the prior patent CN106187660, there is a related description on the specific structure of the bubble breaker, see paragraphs [0031] to [0041] in the specification, and the accompanying drawings, which illustrate the specific working principle of the bubble breaker S-2 in detail, the top of the bubble breaker is a liquid phase inlet, and the side of the bubble breaker is a gas phase inlet, and the liquid phase coming from the top provides the entrainment power, so as to achieve the effect of breaking into ultra-fine bubbles, and in the accompanying drawings, the bubble breaker is also seen to be of a tapered structure, and the diameter of the upper part is larger than that of the lower part, and also for better providing the entrainment power for the liquid phase.
Since the micro-interface generator was just developed in the early stage of the prior patent application, the micro-interface generator was named as a micro-bubble generator (CN201610641119.6), a bubble breaker (201710766435.0) and the like in the early stage, and is named as a micro-interface generator in the later stage along with the continuous technical improvement, and the micro-interface generator in the present invention is equivalent to the micro-bubble generator, the bubble breaker and the like in the prior art, and has different names. In summary, the micro-interface generator of the present invention belongs to the prior art.
The invention also provides a micro-interface enhanced ultra-efficient wastewater ozone treatment method, and the treatment device is applied to treat wastewater.
Preferably, the processing method comprises:
after oxygen is converted into ozone, the oxygen is broken into micro bubbles at the micron level through a micro interface, and the ozone micro bubbles are contacted with the wastewater to purify the wastewater.
The treatment method disclosed by the invention is simple to operate, can effectively improve the purification treatment effect on the wastewater, and can achieve the utilization rate of ozone over 95%, so that the wastewater treatment cost is saved.
Compared with the prior art, the invention has the beneficial effects that:
the micro-interface enhanced ultra-efficient wastewater ozone treatment device is simple in overall structure, and the wastewater is treated by arranging the two treatment areas, so that the oxidation treatment effect on the wastewater is improved; through set up the gas outlet at second treatment zone lateral wall, the unreacted ozone of second treatment zone gets into and continues to participate in the processing to waste water in the first treatment zone, has improved the utilization ratio of ozone, has reduced the waste of ozone, has practiced thrift the cost.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a micro-interface enhanced ultra-high efficiency wastewater ozone treatment device provided in example 1 of the present invention;
FIG. 2 is a schematic structural diagram of a micro-interface enhanced ultra-high efficiency wastewater ozone treatment device provided in comparative example 3 of the present invention.
Wherein:
10-a second treatment zone; 20-an overflow pipe;
30-a fourth micro-interface generator; 40-a second draft tube;
50-a third micro-interface generator; 60-a partition plate;
70-a second micro-interface generator; 80-a first draft tube;
90-a first micro-interface generator; 100-waste water line;
110-tail gas line; 120-a gas outlet;
130-a first circulation line; 140-a liquid outlet;
150-a second circulation line; 160-oxygen line;
170-an ozone generator; 180-first treatment zone.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to more clearly illustrate the technical solution of the present invention, the following description is made in the form of specific embodiments.
Example 1
Referring to fig. 1, the present embodiment provides a micro-interface enhanced ultra-high efficiency wastewater ozone treatment apparatus, including: an ozone generator 170 and a reaction tower; the middle part of the reaction tower is provided with a partition plate 60; the first treating section 180 is provided above the partition plate 60, and the second treating section 10 is provided below. The side wall of the first treatment area 180 is connected with a waste water pipeline 100; a first micro interface unit is arranged in the first processing area 180, and a second micro interface unit is arranged in the second processing area 10; the outlet of the ozone generator 170 is connected with the first micro interface unit and the second micro interface unit respectively, the inlet is connected with the oxygen pipeline 160, when in reaction, oxygen enters the ozone generator 170 through the oxygen pipeline 160 to react to generate ozone, and the ozone is respectively input into the first micro interface unit and the second micro interface unit to be dispersed and crushed into micro bubbles at micron level and then mixed with wastewater to treat the wastewater. To ensure the treatment effect, the amount of ozone entering the second reaction zone from the ozone generator 170 is greater than the amount of ozone entering the first reaction zone from the ozone generator 170. In this embodiment, the ratio of the amount of ozone entering the second reaction zone from the ozone generator 170 to the amount of ozone entering the first reaction zone from the ozone generator 170 is 1: 9.
The first micro-interface unit comprises a first micro-interface generator 90 and a second micro-interface generator 70, the first micro-interface generator 90 is positioned above the second micro-interface generator 70, the first micro-interface generator 90 and the second micro-interface generator 70 are positioned on the same straight line, a first flow guide pipe 80 is arranged between the first micro-interface generator 90 and the second micro-interface generator 70, and the outlet of the first micro-interface generator 90 is connected with the second micro-interface generator 70 through the first flow guide pipe 80; the gas outlet 120 is connected to a first micro-interface generator 90 and the ozone generator 170 is connected to a second micro-interface generator 70. The waste pipe 100 is disposed between the first micro-interface generator 90 and the second micro-interface generator 70 in a vertical direction. Through setting up first micro interface generator 90 and second micro interface generator 70 to utilize first honeycomb duct 80 to connect it, can carry out twice dispersion breakage with ozone, improve the dispersion crushing effect to ozone, thereby improve the gas-liquid area of contact of ozone and waste water.
The top of the first treatment zone 180 is connected to a tail gas line 110. Oxygen generated after the ozone reacts with the wastewater and carbon dioxide generated during the oxidation process are discharged from the tail gas line 110.
The first circulation pipeline 130 is arranged at the side of the first treatment area 180, the inlet of the first circulation pipeline 130 is connected with the bottom of the first treatment area 180, and the outlet is connected with the first micro-interface generator 90.
In this embodiment, an overflow pipe 20 is disposed in the first treatment zone 180, and the overflow pipe 20 penetrates through the partition plate 60 to communicate the first treatment zone 180 with the second treatment zone 10; the wastewater treated in the first treatment area 180 enters the second treatment area 10 through the overflow pipe 20; specifically, the top inlet of the overflow tube 20 is above the first set of micro-interface units and below the liquid level in the first treatment zone 180, and the bottom outlet is below the second set of micro-interface units. The wastewater before treatment contains more organic matters, has higher density than the wastewater after treatment, floats to the top, and overflows to the second treatment area 10 through the inlet of the overflow pipe 20.
With continued reference to fig. 1, the second micro-interface unit includes a third micro-interface generator 50, a fourth micro-interface generator 30 and a second flow guide tube 40, the third micro-interface generator 50 is located above the fourth micro-interface generator 30, the third micro-interface generator 50 and the fourth micro-interface generator 30 are located on the same straight line, and the outlet of the third micro-interface generator 50 is connected to the fourth micro-interface generator 30 through the second flow guide tube 40; the third micro-interface generator 50 is connected to an ozone generator 170. Through setting up third micro interface generator 50 and fourth micro interface generator 30 to utilize second honeycomb duct 40 to connect it, can carry out twice dispersion breakage with ozone, improve the dispersion crushing effect to ozone, thereby improve the gas-liquid area of contact of ozone and waste water.
A second circulation pipeline 150 is arranged at one side of the second treatment area 10; the inlet of the second circulation pipeline 150 is connected with the bottom of the second treatment area 10; the outlet is connected to a third micro-interface generator 50.
In order to improve the utilization rate of ozone, a gas outlet 120 is arranged at the upper part of the second treatment area 10, and the gas outlet 120 is connected with the first micro interface unit so as to convey the ozone at the top of the second treatment area 10 into the first treatment area 180; the gas outlet 120 is above the liquid level in the second treatment zone 10.
The side wall of the second treatment zone 10 is provided with a liquid outlet 140, and the liquid outlet 140 is located between the second micro interface unit and the liquid level in the second treatment zone 10 along the vertical direction. The water treated in the second treatment zone 10 is withdrawn from the liquid outlet 140.
Comparative example 1
This example is different from example 1 only in that no partition plate is provided.
Comparative example 2
This example differs from example 1 only in that the gas outlet of the second treatment zone is not connected to the first treatment zone and the top gas of the second treatment zone is withdrawn directly.
Comparative example 3
The difference between this example and example 1 is that in this example, the first micro-interface generator and the second micro-interface generator are not collinear, and the third micro-interface generator and the fourth micro-interface generator are not collinear, as shown in fig. 2.
Experimental example 1
Taking wastewater from a chemical plant as an example, the wastewater was treated by the treatment apparatuses of example 1, comparative example 1, and comparative example 2.
Wherein the wastewater amount is 100m3And h, COD is 2400mg/L, the ozone adding concentration is 100mg/L, the COD of the produced water at the liquid outlet is tested, and the test results are shown in the following table.
TABLE 1 test results
| COD(mg/L) | Removal Rate (%) | |
| Example 1 | 40.8 | 98.3 |
| Comparative example 1 | 331.2 | 86.2 |
| Comparative example 2 | 156 | 93.5 |
| Comparative example 3 | 105.6 | 95.6 |
As can be seen from Table 1, the treatment apparatus of this example can effectively purify wastewater, and the removal rate can reach 98.3%. The reason why the removal rate of the comparative example 1 only reaches 86.2% is that the comparative example 1 has only one treatment area, and part of ozone entering the treatment area is discharged through a tail gas pipeline at the top without reacting with wastewater, so that the ozone utilization rate is low; in the embodiment 1, two treatment areas are arranged, only a small amount of ozone is introduced into the first treatment area for pretreatment, the upper part of the second treatment area is provided with a gas outlet, and the ozone which does not participate in the reaction in the second treatment area can be discharged into the first treatment area through the gas outlet for pretreatment of wastewater, so that the efficient utilization of the ozone is realized, and the treatment effect of the wastewater is improved; the removal rate of comparative example 2 is much lower than that of example 1, because the unreacted ozone in the second treatment zone in comparative example 2 is directly extracted from the gas outlet, the utilization rate of ozone is affected, and the treatment effect on the wastewater is poor. Although the removal rate of comparative example 3 is superior to that of comparative examples 1 and 2, the removal rate is lower than that of example 1 because the two micro-interface generators of the micro-interface unit in comparative example 3 are not aligned, and therefore, the micro-bubbles may be affected by the transportation path when transported in the draft tube, the impact force is weakened, the crushing effect in the secondary crushing is poor, and the gas-liquid contact area is inferior to that of example 1, thereby affecting the removal rate.
In a word, compared with the prior art, the micro-interface enhanced ultra-high-efficiency wastewater ozone treatment device has a simple overall structure, can effectively improve the wastewater purification treatment effect, and can realize the efficient utilization of ozone, thereby reducing the wastewater treatment cost.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A micro-interface enhanced ultra-efficient wastewater ozone treatment device is characterized by comprising: an ozone generator and a reaction tower; the middle part of the reaction tower is provided with a partition plate; a first treatment area is arranged above the partition plate, and a second treatment area is arranged below the partition plate;
the side wall of the first treatment area is connected with a waste water pipeline; a first micro interface unit is arranged in the first processing area, and a second micro interface unit is arranged in the second processing area;
an inlet of the ozone generator is connected with an oxygen pipeline, and an outlet of the ozone generator is connected with the first micro-interface unit and the second micro-interface unit respectively;
an overflow pipe is arranged in the first treatment area, penetrates through the partition plate and is communicated with the first treatment area and the second treatment area; the wastewater treated in the first treatment area enters the second treatment area through the overflow pipe;
the upper part of the second treatment area is provided with a gas outlet which is connected with the first micro interface unit so as to convey ozone at the top of the second treatment area into the first treatment area; the gas outlet is above the liquid level in the second treatment zone.
2. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment device according to claim 1, wherein the first micro-interface unit comprises a first micro-interface generator and a second micro-interface generator, the first micro-interface generator is positioned above the second micro-interface generator, the first micro-interface generator and the second micro-interface generator are positioned on the same line, a first flow guide pipe is arranged between the first micro-interface generator and the second micro-interface generator, and an outlet of the first micro-interface generator is connected with the second micro-interface generator through the first flow guide pipe; the gas outlet is connected with the first micro-interface generator, and the ozone generator is connected with the second micro-interface generator.
3. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment device according to claim 1, wherein the second micro-interface unit comprises a third micro-interface generator, a fourth micro-interface generator and a second flow guide pipe, the third micro-interface generator is positioned above the fourth micro-interface generator, the third micro-interface generator and the fourth micro-interface generator are positioned on the same line, and the outlet of the third micro-interface generator is connected with the fourth micro-interface generator through the second flow guide pipe; the third micro-interface generator is connected with the ozone generator.
4. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment device according to claim 1, wherein the top inlet of the overflow pipe is higher than the first micro-interface unit and is positioned below the liquid level in the first treatment zone, and the bottom outlet is lower than the second micro-interface unit.
5. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment unit according to claim 2, wherein the wastewater pipeline is disposed between the first micro-interface generator and the second micro-interface generator in a vertical direction.
6. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment device according to claim 2, characterized in that a first circulation pipeline is arranged at the side part of the first treatment zone, the inlet of the first circulation pipeline is connected with the bottom part of the first treatment zone, and the outlet of the first circulation pipeline is connected with the first micro-interface generator.
7. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment device according to claim 3, wherein a second circulation pipeline is arranged on one side of the second treatment area; the inlet of the second circulating pipeline is connected with the bottom of the second treatment area; the outlet is connected to the third micro-interface generator.
8. The micro-interface enhanced ultra-high efficiency wastewater ozone treatment device according to claim 3, wherein the side wall of the second treatment zone is provided with a liquid outlet, and the liquid outlet is positioned between the second micro-interface unit and the liquid level in the second treatment zone along the vertical direction.
9. A micro-interface enhanced ultra-efficient wastewater ozone treatment method, which is characterized in that the treatment device of any one of claims 1 to 8 is used for treating wastewater.
10. The processing method according to claim 9, comprising:
after oxygen is converted into ozone, the oxygen is broken into micro bubbles at the micron level through a micro interface, and the ozone micro bubbles are contacted with the wastewater to purify the wastewater.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111331164.9A CN113929204A (en) | 2021-11-11 | 2021-11-11 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and treatment method |
| PCT/CN2022/118430 WO2023082818A1 (en) | 2021-11-11 | 2022-09-13 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111331164.9A CN113929204A (en) | 2021-11-11 | 2021-11-11 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113929204A true CN113929204A (en) | 2022-01-14 |
Family
ID=79286194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111331164.9A Pending CN113929204A (en) | 2021-11-11 | 2021-11-11 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and treatment method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113929204A (en) |
| WO (1) | WO2023082818A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477577A (en) * | 2022-01-19 | 2022-05-13 | 南京延长反应技术研究院有限公司 | A device and method for ultrasonic wastewater treatment |
| WO2023082818A1 (en) * | 2021-11-11 | 2023-05-19 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and processing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437390A (en) * | 2018-12-19 | 2019-03-08 | 南京大学盐城环保技术与工程研究院 | A kind of reactor and its application method of catalytic ozonation waste water |
| CN111422971A (en) * | 2020-05-08 | 2020-07-17 | 上海尚析环保设备有限公司 | Fountain catalytic ozonation reaction system |
| CN111573964A (en) * | 2020-03-24 | 2020-08-25 | 南京延长反应技术研究院有限公司 | Built-in micro-interface papermaking wastewater treatment system and treatment method |
| CN112479348A (en) * | 2019-09-11 | 2021-03-12 | 南京延长反应技术研究院有限公司 | Remote control system and method for black and odorous water |
| CN112755927A (en) * | 2020-12-17 | 2021-05-07 | 南京延长反应技术研究院有限公司 | Reaction system and method for preparing ethylene glycol by ethylene oxide method |
| CN113060827A (en) * | 2021-03-26 | 2021-07-02 | 南京延长反应技术研究院有限公司 | Reaction unit for aerobic biological treatment |
| CN113479850A (en) * | 2021-07-16 | 2021-10-08 | 南京延长反应技术研究院有限公司 | Tower type enhanced oxidation system and method for preparing hydrogen peroxide |
| CN113499738A (en) * | 2021-07-16 | 2021-10-15 | 南京延长反应技术研究院有限公司 | Built-in instant dehydration micro-interface reinforced DMC (DMC) preparation system and method |
| CN217148695U (en) * | 2021-11-11 | 2022-08-09 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69409585T2 (en) * | 1993-07-16 | 1998-08-13 | Basf Ag | Degradation of aromatic compounds in industrial wastewater |
| JPH08299971A (en) * | 1995-03-06 | 1996-11-19 | Fuji Electric Co Ltd | Separate injection type ozone contact method |
| CN112479349A (en) * | 2019-09-11 | 2021-03-12 | 南京延长反应技术研究院有限公司 | Treatment system and method for black and odorous water body |
| CN113087254B (en) * | 2019-12-23 | 2022-04-01 | 南京延长反应技术研究院有限公司 | Treatment system and method for acrylic acid and acrylic ester wastewater |
| CN111362493B (en) * | 2019-12-23 | 2020-12-29 | 南京延长反应技术研究院有限公司 | System and method for treating high-salinity PMIDA wastewater |
| CN113929204A (en) * | 2021-11-11 | 2022-01-14 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and treatment method |
-
2021
- 2021-11-11 CN CN202111331164.9A patent/CN113929204A/en active Pending
-
2022
- 2022-09-13 WO PCT/CN2022/118430 patent/WO2023082818A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437390A (en) * | 2018-12-19 | 2019-03-08 | 南京大学盐城环保技术与工程研究院 | A kind of reactor and its application method of catalytic ozonation waste water |
| CN112479348A (en) * | 2019-09-11 | 2021-03-12 | 南京延长反应技术研究院有限公司 | Remote control system and method for black and odorous water |
| CN111573964A (en) * | 2020-03-24 | 2020-08-25 | 南京延长反应技术研究院有限公司 | Built-in micro-interface papermaking wastewater treatment system and treatment method |
| CN111422971A (en) * | 2020-05-08 | 2020-07-17 | 上海尚析环保设备有限公司 | Fountain catalytic ozonation reaction system |
| CN112755927A (en) * | 2020-12-17 | 2021-05-07 | 南京延长反应技术研究院有限公司 | Reaction system and method for preparing ethylene glycol by ethylene oxide method |
| CN113060827A (en) * | 2021-03-26 | 2021-07-02 | 南京延长反应技术研究院有限公司 | Reaction unit for aerobic biological treatment |
| CN113479850A (en) * | 2021-07-16 | 2021-10-08 | 南京延长反应技术研究院有限公司 | Tower type enhanced oxidation system and method for preparing hydrogen peroxide |
| CN113499738A (en) * | 2021-07-16 | 2021-10-15 | 南京延长反应技术研究院有限公司 | Built-in instant dehydration micro-interface reinforced DMC (DMC) preparation system and method |
| CN217148695U (en) * | 2021-11-11 | 2022-08-09 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082818A1 (en) * | 2021-11-11 | 2023-05-19 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and processing method |
| CN114477577A (en) * | 2022-01-19 | 2022-05-13 | 南京延长反应技术研究院有限公司 | A device and method for ultrasonic wastewater treatment |
| CN114477577B (en) * | 2022-01-19 | 2023-09-01 | 南京延长反应技术研究院有限公司 | A device and method for ultrasonic wastewater treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023082818A1 (en) | 2023-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4463204B2 (en) | Air diffuser | |
| WO2023082818A1 (en) | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and processing method | |
| CN217148695U (en) | Micro-interface enhanced ultra-efficient wastewater ozone treatment device | |
| CN106495359A (en) | A kind of highly difficult advanced waste treatment apparatus and method | |
| CN111217441B (en) | Ozone oxidation reactor and use method thereof | |
| CN108069491B (en) | Electrocatalytic oxidation method and reaction device for refractory wastewater | |
| JP2005144425A (en) | Diffuser | |
| CN211644908U (en) | Jet fluidized bed type electro-Fenton treatment system | |
| CN113060827A (en) | Reaction unit for aerobic biological treatment | |
| CN219079288U (en) | High-salt low-COD wastewater treatment system | |
| CN203440190U (en) | Multivariant microelectrolysis combined binary catalytic oxidation device | |
| CN213834684U (en) | Multidimensional coupling catalytic oxidation reactor | |
| CN212127673U (en) | Fountain catalytic ozonation reaction system | |
| CN117023766A (en) | Wastewater treatment system of ultra-fine bubble coupling ozone generator | |
| JP4544017B2 (en) | Air diffuser | |
| CN108751369B (en) | Production method of polymeric ferric sulfate | |
| CN106608673B (en) | Method for reducing content of soluble impurities in wastewater by utilizing gas-liquid impact mixing reaction system | |
| CN218951125U (en) | Sewage treatment reduction oxidation device | |
| CN218478603U (en) | Ozone reaction tower and sewage treatment system | |
| CN217458966U (en) | Catalytic ozone coupling ozone-hydrogen peroxide reactor and sewage treatment system | |
| CN222250234U (en) | Homogeneous ozone catalytic oxidation pond and sewage treatment system | |
| CN111717990A (en) | Anaerobic reactor for wastewater treatment and method for treating wastewater | |
| CN216808391U (en) | Oily wastewater pretreatment device | |
| CN213680291U (en) | Ultrasonic, ozone and micro-channel advanced oxidation device | |
| KR102277993B1 (en) | Vortex Loss Compensating Apparatus Having Turbulence Generator Mixer For Fluid Mixing In Water Treatment System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220114 |
|
| RJ01 | Rejection of invention patent application after publication |