CN206570116U - A kind of waste water by ozone catalytic oxidizing equipment - Google Patents
A kind of waste water by ozone catalytic oxidizing equipment Download PDFInfo
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- CN206570116U CN206570116U CN201621392182.2U CN201621392182U CN206570116U CN 206570116 U CN206570116 U CN 206570116U CN 201621392182 U CN201621392182 U CN 201621392182U CN 206570116 U CN206570116 U CN 206570116U
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 124
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 230000001590 oxidative effect Effects 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000004576 sand Substances 0.000 claims abstract description 41
- 238000006385 ozonation reaction Methods 0.000 claims abstract description 26
- 238000011001 backwashing Methods 0.000 claims abstract description 21
- 238000007254 oxidation reaction Methods 0.000 claims description 97
- 230000003647 oxidation Effects 0.000 claims description 96
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 238000012856 packing Methods 0.000 claims description 25
- 239000002893 slag Substances 0.000 claims description 20
- 150000002697 manganese compounds Chemical class 0.000 claims description 19
- 238000005273 aeration Methods 0.000 claims description 18
- 239000010935 stainless steel Substances 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 17
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- HSUYRXROGASBBD-UHFFFAOYSA-N ozone titanium Chemical compound O=[O+][O-].[Ti] HSUYRXROGASBBD-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a kind of waste water by ozone catalytic oxidizing equipment, the device is formed by connecting by leading portion sand coarse aggregate ratio filter tank, sand coarse aggregate ratio back washing device, at least two-stage catalytic ozonation reactor, ozone generator and the ozone tail gas destructor that are connected in series, wherein, the different catalyst filling layer of multilayer is equipped with each catalytic ozonation reactor at least two-stage catalytic ozonation reactor being connected in series.The apparatus structure is simple, using catalytic ozonation multistage linking, using just effect, middle effect, efficient three kinds of different type catalyst in every grade of catalytic ozonation pond, compared with prior art, it is substantially improved than identical ozonation aerated amount single-stage catalytic ozonation pond and single catalyst catalytic ozonation pond colourity and COD clearances, reduces waste water ton cost of water treatment.
Description
Technical Field
The invention relates to a wastewater advanced treatment device, in particular to a wastewater ozone catalytic oxidation device
Background
The current Chinese environmental protection problem is very outstanding, the situation of toxic organic matters to environmental pollution is very serious, especially the waste water in chemical industrial parks, the discharge water volume is large, the pollutant components are complex and difficult to be biochemically degraded, and the sustainable development of the economy of China is severely restricted.
Along with the increasing importance of the country on water resource protection, the discharge standard of urban wastewater is increased day by day, and the COD (chemical oxygen demand) of the treated wastewater is required to be less than 50mg/L and the chroma is required to be less than 15 times. The COD of the effluent treated by the traditional biochemical and mixed sedimentation treatment process is generally over 100mg/L, and the chroma is more than 45 times.
Ozone has a very high redox potential (2.07V), and the decomposition of ozone generates HO with a redox potential as high as 2.80V. The strong redox potential of ozone can oxidize most organic matters in wastewater. The catalyst has strong adsorbability, and the ozone can greatly improve the utilization efficiency of the ozone under the action of the catalyst and improve the degradation effect of organic matters. The ozone catalytic oxidation technology has the biggest advantages of simpler process, reliability and safety, and basically no subsequent sludge disposal problem. However, the prior art shows that the single-stage ozone oxidation technology using a single catalyst has low ozone utilization rate, and the effluent quality can not reach the discharge standard. If the catalyst dosage is increased, the reactor is easily blocked due to too large catalyst dosage, and the practical operation is difficult due to high backwashing frequency.
Chinese patent CN 104891713a discloses a high efficiency ozone catalytic oxidation treatment process, which is suitable for purification and treatment of water containing organic pollutants. The method comprises the steps of mixing pretreated organic wastewater with ozone, then feeding the mixture into a catalytic oxidation tower through a micro-nano bubble generating device, and filling catalytic filler into the catalytic oxidation tower to perform catalytic oxidation degradation on organic matters in the wastewater.
The existing process for treating wastewater by catalytic oxidation of ozone has insufficient mixing uniformity of gas and liquid phases, so that the mass transfer effect of the gas and liquid phases is poor, and the utilization efficiency of ozone is reduced. Meanwhile, in order to ensure the treatment effect, the existing process usually uses complex large-scale equipment and increases the dosage of the catalyst, thereby increasing the cost invisibly.
SUMMERY OF THE UTILITY MODEL
Based on the problem that prior art exists, the utility model aims at providing a waste water ozone catalytic oxidation device can solve and adopt single catalyst to need to increase the catalyst quantity, and the cost is higher and cause the reactor to block up very easily, and the higher problem of bringing the difficulty for actual operation of backwash frequency.
The utility model aims at realizing through the following technical scheme:
the embodiment of the utility model provides a waste water ozone catalytic oxidation device, include:
the device comprises a front-section sand rate filter tank, a sand rate backwashing device, at least two stages of ozone catalytic oxidation reactors, an ozone generator and an ozone tail gas destructor which are connected in series; wherein,
the front-section sand rate filter chamber is provided with a water inlet pipe, and a water outlet pipe of the front-section sand rate filter chamber is connected with at least two stages of ozone catalytic oxidation reactors connected in series;
a plurality of different catalyst packing layers are arranged in each ozone catalytic oxidation reactor of the at least two stages of ozone catalytic oxidation reactors connected in series;
the ozone generator is respectively connected with the ozone inlet pipe of each stage of ozone catalytic oxidation reactor in the at least two stages of ozone catalytic oxidation reactors connected in series;
the ozone tail gas destructor is connected with an air outlet pipe of a last-stage ozone catalytic oxidation reactor in at least two stages of ozone catalytic oxidation reactors connected in series;
the water outlet pipe of the final-stage ozone catalytic oxidation reactor is used as a deep treatment water outlet discharge pipe;
the sand rate backwashing device connected with the front section sand rate filter tank is connected with a sand rate backwashing interface of the final-stage ozone catalytic oxidation reactor, and the sand rate backwashing interface is arranged on a water outlet pipe of the final-stage ozone catalytic oxidation reactor.
According to the technical scheme provided by the invention, the wastewater ozone catalytic oxidation device provided by the embodiment of the invention has the advantages that at least two stages of ozone catalytic oxidation reactors connected in series are arranged, and multiple layers of different catalyst filler layers are arranged in each ozone catalytic oxidation reactor, so that catalytic oxidation can be realized by matching different catalysts with ozone, and the effect of adding one to more than two catalysts is realized by the superposition effect of the catalysts.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a wastewater catalytic ozonation apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a primary catalytic ozonation reactor according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a final-stage catalytic ozonation reactor according to an embodiment of the present invention;
the parts corresponding to the reference numerals in fig. 1 are: 100-front section sand rate filter; 101-a water inlet pipe; 200-at least two stages of catalytic ozonation reactors connected in series; 201-primary ozone catalytic oxidation reactor; 202-a final ozone catalytic oxidation reactor; 12-a deep treatment water outlet discharge pipe; 13-sand rate backwash interface; 300-sand rate backwash device; 400-ozone tail gas destroyer;
the parts corresponding to the reference numerals in fig. 2 are: 1-filler holes; 2-a viewing aperture; 3-a water inlet pipe of the primary ozone catalytic oxidation reactor; 4-fixing the base; 5-a microporous titanium alloy aeration device; 6-an ozone inlet pipe; 7-a discharge hole; 8-tank body; 9-water outlet pipe; 10-a pressure relief valve;
the parts corresponding to the reference numerals in fig. 3 are: 11-connect the air outlet duct of the ozone tail gas destroyer; 12-a deep treatment water outlet discharge pipe; 13-sand rate backwash interface; 14-water inlet pipe of the final ozone catalytic oxidation reactor; 15-a fourth layer of grid support plates; 16-an activated carbon catalyst grid support plate; 17-discharge hole flange; 18-a manganese compound-containing ceramsite catalyst latticed support plate; 19-activating the slag catalyst grid support plate; 20-an active carbon catalyst packing layer; 21-a manganese compound-containing ceramsite catalyst packing layer; 22-activated slag catalyst packing layer.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in FIG. 1, the embodiment of the utility model provides a waste water catalytic ozonation device for carry out the catalytic ozonation of multistage multiple catalyst to waste water and handle, include:
the device comprises a front-section sand rate filter tank, a sand rate backwashing device, at least two stages of ozone catalytic oxidation reactors, an ozone generator and an ozone tail gas destructor which are connected in series; wherein,
the front-section sand rate filter chamber is provided with a water inlet pipe, and a water outlet pipe of the front-section sand rate filter chamber is connected with at least two stages of ozone catalytic oxidation reactors connected in series;
a plurality of different catalyst packing layers are arranged in each ozone catalytic oxidation reactor of the at least two stages of ozone catalytic oxidation reactors connected in series;
the ozone generator is respectively connected with the ozone inlet pipe of each stage of ozone catalytic oxidation reactor in the at least two stages of ozone catalytic oxidation reactors connected in series;
the ozone tail gas destructor is connected with an air outlet pipe of a last-stage ozone catalytic oxidation reactor in at least two stages of ozone catalytic oxidation reactors connected in series;
the water outlet pipe of the final-stage ozone catalytic oxidation reactor is used as a deep treatment water outlet discharge pipe;
the sand rate backwashing device connected with the front section sand rate filter tank is connected with a sand rate backwashing interface of the final-stage ozone catalytic oxidation reactor, and the sand rate backwashing interface is arranged on a water outlet pipe of the final-stage ozone catalytic oxidation reactor.
In the above apparatus, the first-stage ozone catalytic oxidation reactor (see fig. 2) of the at least two-stage ozone catalytic oxidation reactors connected in series includes:
the bottom in the tank body is provided with a micropore titanium alloy aeration device;
the bottom of the tank body is provided with a water inlet pipe and an ozone inlet pipe, and the water inlet pipe and the ozone inlet pipe are respectively connected with the microporous titanium alloy aeration device;
an activated slag catalyst latticed supporting plate, a manganese compound-containing ceramsite catalyst latticed supporting plate, an activated carbon catalyst latticed supporting plate and a fourth layer of latticed supporting plate are sequentially arranged above the microporous titanium alloy aeration device in the tank body from bottom to top at intervals, an activated slag catalyst packing layer is arranged on the activated slag catalyst latticed supporting plate, and a filling hole, a discharging hole and an observation hole are respectively formed in the tank body corresponding to the activated slag catalyst packing layer; a manganese compound-containing ceramsite catalyst packing layer is arranged on the manganese compound-containing ceramsite catalyst latticed support plate, and a filling hole, a discharging hole and an observation hole are respectively formed in the tank body corresponding to the manganese compound-containing ceramsite packing layer; active carbon catalyst packing layers are arranged on the active carbon catalyst latticed supporting plate and the grid supporting plate, and a filling hole, a discharging hole and an observation hole are respectively arranged on the tank body corresponding to the active carbon catalyst packing layers;
an air outlet pipe is arranged at the top of the tank body, and a pressure release valve is arranged on the air outlet pipe;
and a water outlet pipe is arranged outside the tank body above the fourth layer of grid supporting plate.
In the device, the distance between the grid-shaped supporting plate of the activated slag catalyst and the microporous titanium alloy aeration device is 20 cm;
the distance between the manganese compound-containing ceramsite catalyst latticed supporting plate and the activated slag catalyst latticed supporting plate is 50 cm;
the distance between the activated carbon catalyst latticed supporting plate and the manganese compound-containing ceramsite catalyst latticed supporting plate is 50 cm;
the distance between the fourth layer of grid supporting plate and the active carbon catalyst grid supporting plate is 50 cm.
In the device, the activated slag catalyst latticed support plate, the manganese compound-containing ceramsite catalyst latticed support plate, the activated carbon catalyst latticed support plate and the fourth layer of latticed support plate are all stainless steel latticed support plates, the diameter of an opening of each stainless steel latticed support plate is 1-3 mm, and the stainless steel latticed support plates, the activated slag catalyst latticed support plates, the activated carbon compound-containing ceramsite catalyst latticed support plates and the fourth layer of latticed;
the filling holes corresponding to each catalyst filling layer are all positioned on the tank body 45cm above the latticed supporting plate, and the pipe bodies of the filling holes are obliquely arranged downwards and form an angle of 45 degrees with the wall of the tank body;
an observation hole is formed in the tank body 35cm below each filling hole;
the discharge hole corresponding to each catalyst packing layer is arranged on the tank body 5cm above the latticed supporting plate, the pipe body of the discharge hole is obliquely arranged downwards and forms an angle of 45 degrees with the horizontal plane, and the discharge hole is arranged on the tank body opposite to the filling hole.
In the device, the tank body is a stainless steel tank body, the top of the tank body is of an arc-shaped structure, and the bottom of the tank body is provided with a fixed seat.
In the device, the structures of other ozone catalytic oxidation reactors at each stage in at least two ozone catalytic oxidation reactors connected in series are the same as the structure of the first-stage ozone catalytic oxidation reactor;
the structure of the final-stage catalytic ozonation reactor is shown in fig. 3, and the sand rate backwashing connector is arranged on the water outlet pipe of the final-stage catalytic ozonation reactor.
In the device, at least two stages of ozone catalytic oxidation reactors connected in series are connected in series to form a four-stage cascade structure by four ozone catalytic oxidation reactors, and two to four stages of ozone catalytic oxidation reactors can be arranged in series to form a multi-stage structure according to different water qualities to be treated.
The catalytic ozonation device according to an embodiment of the present invention will be described in further detail with reference to the accompanying drawings.
The catalytic ozonation device of waste water that this embodiment provided is a multistage linkage catalytic ozonation device of stack catalyst effect, as shown in fig. 1, the device includes: the device comprises a front-section sand rate filter tank, a sand rate backwashing device, a two-stage to four-stage ozone catalytic oxidation reactor, an ozone generator and an ozone tail gas destructor which are connected in series; wherein, the front sand filter chamber is provided with a water inlet pipe for introducing biochemical mixed and precipitated effluent of a sewage plant, a water outlet pipe of the front sand filter chamber is connected to a first-stage ozone catalytic oxidation reactor in a second-stage to fourth-stage ozone catalytic oxidation reactors which are connected in series, the bottom of the first-stage ozone catalytic oxidation reactor is provided with a micropore titanium ozone aeration device (the number of aeration discs of the micropore titanium ozone aeration device is set according to the number or the size of the reactor), a main pipeline of the aeration device is respectively connected with the water inlet pipe and an ozone inlet pipe of the reactor, the water inlet pipe is connected with the water outlet pipe of the front sand filter chamber, the ozone inlet pipe is connected with an outlet pipeline of an ozone generator, and; a first layer of stainless steel latticed supporting plate (namely an activated slag catalyst latticed supporting plate) is arranged 20cm above the microporous titanium ozone aeration device and is welded on the inner wall of the tank body of the ozone catalytic oxidation reactor; a second layer of stainless steel latticed supporting plate (namely a latticed supporting plate of the manganese compound-containing ceramsite catalyst) is arranged 50cm above the first layer of stainless steel latticed supporting plate and is welded on the inner wall of the tank body of the ozone catalytic oxidation reactor; a third stainless steel latticed support plate (namely an activated carbon catalyst latticed support plate) is arranged 50cm above the second stainless steel latticed support plate and is welded on the inner wall of the tank body of the ozone catalytic oxidation reactor; a fourth layer of stainless steel latticed supporting plate is arranged 50cm above the third layer of stainless steel latticed supporting plate, the fourth layer of stainless steel latticed supporting plate can prevent the catalyst in the fluidized state of the third layer from losing, a water outlet pipe of the ozone catalytic oxidation reactor is arranged at a position, which is larger than 10cm above the fourth layer of stainless steel latticed supporting plate, the diameter of an opening of each layer of latticed supporting plate is 1-3 mm, and catalyst packing layers of different types are placed on each layer of latticed supporting plate. And a filling hole is arranged at a position which is 45cm above each layer of the latticed support frame and forms an angle of 90 degrees with the water inlet pipe, each filling hole is obliquely downwards arranged to form an angle of 45 degrees with the horizontal plane, and an observation hole is arranged at a position which is 35cm below each filling hole, namely 10cm above each layer of the latticed support frame, and is used for observing the change of the color, the stacking density and the like of the filling material along with the time change of the catalytic oxidation reaction of the ozone. Every observation hole is opposite, and every layer of latticed backup pad top 5cm department establishes the discharge opening in order to make things convenient for the catalyst to change, and every discharge opening slant sets up downwards and personally submits 45 degrees angles with the level. The tank body of the ozone catalytic oxidation reactor is fixed on the ground through a fixing seat and can be fixed on a container for convenient transportation.
The first-stage ozone catalytic oxidation reactor is a closed reactor, the top of the reactor is of a circular arc structure, a pressure release valve is installed on an air outlet pipe, a water outlet pipe arranged above the fourth-layer latticed supporting plate is connected with a water inlet pipe of the next-stage ozone catalytic oxidation reactor, the water inlet pipe of the next-stage ozone catalytic oxidation reactor is arranged at the bottom of the reactor, and the structures of other reactors except the last-stage ozone catalytic oxidation reactor are the same. The outlet pipe at the top of the last-stage ozone catalytic oxidation reactor is connected with an ozone tail gas destructor, the water outlet pipe of the last-stage ozone catalytic oxidation reactor is provided with two branch pipelines, one branch is connected with a sand rate backwashing device and is introduced into a sand rate filter tank for backwashing water of the sand rate filter tank, and the other branch is a water outlet discharge pipe.
The utility model discloses a device, its simple structure, the catalyst is with low costs, utilizes different catalysts to carry out multistage linkage catalytic oxidation, and catalyst stack effect one plus one is greater than two, and COD and colourity clearance improve greatly under the condition of the same ozone aeration volume.
The utility model discloses specific work flow does: water filtered by a front-end sand-rate filter tank enters a primary ozone catalytic oxidation reactor from a water inlet pipe 3, wastewater flows from top to bottom, ozone enters through an ozone inlet pipe 6 connected with an ozone generator, the ozone inlet pipe 6 is connected with a microporous titanium alloy aeration device 5, ozone from the microporous titanium alloy aeration device 5 is mixed with water from the water inlet pipe 3 of the primary ozone catalytic oxidation reactor in a pre-reaction zone above the microporous titanium alloy aeration device 5, a gas-liquid mixture after pre-reaction sequentially passes through an activated slag catalyst packing layer, a manganese compound-containing ceramsite catalyst packing layer and an active carbon catalyst packing layer from bottom to top, and each catalyst is respectively filled in each filling hole; the wastewater after the catalytic oxidation of the three layers of catalysts enters a water inlet pipe of a secondary ozone catalytic oxidation reactor from a water outlet pipe 9 of the primary ozone catalytic oxidation reactor, the water inlet of each stage of ozone catalytic oxidation reactor and the primary ozone catalytic oxidation reactor and the sequence of each catalyst packing layer are completely the same, finally the wastewater enters a water inlet pipe 14 of a final stage ozone catalytic oxidation reactor from a water outlet pipe above, the wastewater is mixed in a pre-reaction zone of the stage ozone catalytic oxidation reactor, activated slag is catalytically oxidized, manganese compound-containing ceramsite is catalytically oxidized, and the treated water after the activated carbon catalytic oxidation is discharged from the water outlet pipe above the final stage ozone catalytic oxidation reactor, wherein the water outlet pipe is divided into two branch pipes, one branch pipe is discharged through a water outlet pipe 12, and the other branch pipe enters a sand rate backwashing device from a pipeline 13 to be used as backwashing water of a front-end. Wherein the pressure of the carbon dioxide and a small amount of ozone and other gases generated in the first several stages of ozone catalytic oxidation reactors is accumulated to a certain degree and is discharged by the pressure release valve 10.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A catalytic ozonation device for wastewater, comprising:
the device comprises a front-section sand rate filter tank, a sand rate backwashing device, at least two stages of ozone catalytic oxidation reactors, an ozone generator and an ozone tail gas destructor which are connected in series; wherein,
the front-section sand rate filter chamber is provided with a water inlet pipe, and a water outlet pipe of the front-section sand rate filter chamber is connected with at least two stages of ozone catalytic oxidation reactors connected in series;
a plurality of different catalyst packing layers are arranged in each ozone catalytic oxidation reactor of the at least two stages of ozone catalytic oxidation reactors connected in series;
the ozone generator is respectively connected with the ozone inlet pipe of each stage of ozone catalytic oxidation reactor in the at least two stages of ozone catalytic oxidation reactors connected in series;
the ozone tail gas destructor is connected with an air outlet pipe of a last-stage ozone catalytic oxidation reactor in at least two stages of ozone catalytic oxidation reactors connected in series;
the water outlet pipe of the final-stage ozone catalytic oxidation reactor is used as a deep treatment water outlet discharge pipe;
the sand rate backwashing device connected with the front section sand rate filter tank is connected with a sand rate backwashing interface of the final-stage ozone catalytic oxidation reactor, and the sand rate backwashing interface is arranged on a water outlet pipe of the final-stage ozone catalytic oxidation reactor.
2. The catalytic ozonation device of wastewater according to claim 1, wherein the first ozone catalytic ozonation reactor of the at least two ozone catalytic ozonation reactors connected in series comprises:
the bottom in the tank body is provided with a micropore titanium alloy aeration device;
the bottom of the tank body is provided with a water inlet pipe and an ozone inlet pipe, and the water inlet pipe and the ozone inlet pipe are respectively connected with the microporous titanium alloy aeration device;
an activated slag catalyst latticed supporting plate, a manganese compound-containing ceramsite catalyst latticed supporting plate, an activated carbon catalyst latticed supporting plate and a fourth layer of latticed supporting plate are sequentially arranged above the microporous titanium alloy aeration device in the tank body from bottom to top at intervals, an activated slag catalyst packing layer is arranged on the activated slag catalyst latticed supporting plate, and a filling hole, a discharging hole and an observation hole are respectively formed in the tank body corresponding to the activated slag catalyst packing layer; a manganese compound-containing ceramsite catalyst packing layer is arranged on the manganese compound-containing ceramsite catalyst latticed support plate, and a filling hole, a discharging hole and an observation hole are respectively formed in the tank body corresponding to the manganese compound-containing ceramsite packing layer; active carbon catalyst packing layers are arranged on the active carbon catalyst latticed supporting plate and the grid supporting plate, and a filling hole, a discharging hole and an observation hole are respectively arranged on the tank body corresponding to the active carbon catalyst packing layers;
an air outlet pipe is arranged at the top of the tank body, and a pressure release valve is arranged on the air outlet pipe;
and a water outlet pipe is arranged outside the tank body above the fourth layer of grid supporting plate.
3. The catalytic ozonation device for wastewater according to claim 2, wherein the distance between the activated slag catalyst grid-shaped support plate and the microporous titanium alloy aeration device is 20 cm;
the distance between the manganese compound-containing ceramsite catalyst latticed supporting plate and the activated slag catalyst latticed supporting plate is 50 cm;
the distance between the activated carbon catalyst latticed supporting plate and the manganese compound-containing ceramsite catalyst latticed supporting plate is 50 cm;
the distance between the fourth layer of grid supporting plate and the active carbon catalyst grid supporting plate is 50 cm.
4. The catalytic ozonation device for wastewater according to claim 2 or 3, wherein the activated slag catalyst grid support plate, the manganese compound-containing ceramsite catalyst grid support plate, the activated carbon catalyst grid support plate and the fourth layer of grid support plate are stainless steel grid support plates, the diameter of the opening of each stainless steel grid support plate is 1-3 mm, and the stainless steel grid support plates are fixedly arranged on the inner wall of the tank body;
the filling holes corresponding to each catalyst filling layer are all positioned on the tank body 45cm above the latticed supporting plate, and the pipe bodies of the filling holes are obliquely arranged downwards and form an angle of 45 degrees with the wall of the tank body;
an observation hole is formed in the tank body 35cm below each filling hole;
the discharge hole corresponding to each catalyst packing layer is arranged on the tank body 5cm above the latticed supporting plate, the pipe body of the discharge hole is obliquely arranged downwards and forms an angle of 45 degrees with the horizontal plane, and the discharge hole is arranged on the tank body opposite to the filling hole.
5. The catalytic ozonation device for wastewater according to claim 2, wherein the tank body is made of stainless steel, and the top of the tank body is of an arc-shaped structure; the bottom of the tank body is provided with a fixed seat.
6. The wastewater ozone catalytic oxidation device according to claim 1, 2 or 3, wherein the structures of the other ozone catalytic oxidation reactors in the at least two ozone catalytic oxidation reactors connected in series are the same as the structure of the first ozone catalytic oxidation reactor;
and the water outlet pipe of the final-stage ozone catalytic oxidation reactor is provided with the sand rate backwashing connector.
7. The wastewater ozone catalytic oxidation device as claimed in claim 1, 2 or 3, wherein the at least two ozone catalytic oxidation reactors connected in series are connected in series by four ozone catalytic oxidation reactors to form a four-stage structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621392182.2U CN206570116U (en) | 2016-12-16 | 2016-12-16 | A kind of waste water by ozone catalytic oxidizing equipment |
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|---|---|---|---|
| CN201621392182.2U CN206570116U (en) | 2016-12-16 | 2016-12-16 | A kind of waste water by ozone catalytic oxidizing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147597A (en) * | 2017-12-29 | 2018-06-12 | 深圳科力迩科技有限公司 | Polymer-bearing waste-water processing system and technique |
| CN110590019A (en) * | 2019-10-16 | 2019-12-20 | 上海蓝科石化环保科技股份有限公司 | Ozone catalytic oxidation reactor and sewage treatment method thereof |
-
2016
- 2016-12-16 CN CN201621392182.2U patent/CN206570116U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147597A (en) * | 2017-12-29 | 2018-06-12 | 深圳科力迩科技有限公司 | Polymer-bearing waste-water processing system and technique |
| CN110590019A (en) * | 2019-10-16 | 2019-12-20 | 上海蓝科石化环保科技股份有限公司 | Ozone catalytic oxidation reactor and sewage treatment method thereof |
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