CN111410260A - Carbon-based adsorption catalytic treatment device convenient for removing total nitrogen in sewage - Google Patents
Carbon-based adsorption catalytic treatment device convenient for removing total nitrogen in sewage Download PDFInfo
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- CN111410260A CN111410260A CN202010254664.6A CN202010254664A CN111410260A CN 111410260 A CN111410260 A CN 111410260A CN 202010254664 A CN202010254664 A CN 202010254664A CN 111410260 A CN111410260 A CN 111410260A
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- 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
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- 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
- C02F2201/002—Construction details of the apparatus
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Abstract
The invention relates to a carbon-based adsorption catalytic treatment device convenient for removing total nitrogen in sewage, which relates to the technical field of sewage treatment equipment.A reaction tank is symmetrically and fixedly provided with I-shaped guide rails on the ground at the left side and the right side, wheel seats are respectively erected on the I-shaped guide rails, and travelling wheels are rotatably arranged in the wheel seats through wheel shafts; a fixing frame is arranged above the reaction tank; the middle part of the first shaft seat is rotatably provided with a scroll through a bearing; the reel is wound with a guy cable; a frame is arranged in the reaction tank, lifting rings are symmetrically and fixedly arranged on four corners of the top surface of the frame, lifting ropes are fixedly tied on the lifting rings, and the upper ends of the lifting ropes are fixedly connected with the lower ends of the lifting ropes; a plurality of net cages are inserted in the middle of the frame; the inside of box with a net is filled with carbon base adsorption catalyst, adopts ration, the mode of fixed point to carry out carbon base adsorption catalyst's input work, has reduced the waste of resource, conveniently retrieves and changes carbon base adsorption catalyst, has reduced the influence to outside water to and reduced the destruction to ecological environment.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to a carbon-based adsorption catalytic treatment device convenient for removing total nitrogen in sewage.
Background
Total nitrogen, abbreviated as TN, is one of important indexes for measuring water quality, and is defined as the total amount of various forms of inorganic and organic nitrogen in water, including inorganic nitrogen, proteins, amino acids, organic amines and other organic nitrogen, and is often used to indicate the degree of water body polluted by nutrients, calculated as milligrams of nitrogen per liter of water.
At present, the treatment of total nitrogen in sewage in the market generally adopts adding sodium hypochlorite or bleaching powder for oxidation, converting ammonia nitrogen into nitrogen for release, or utilizes microbial nitrification and denitrification to remove ammonia nitrogen in wastewater, converts the ammonia nitrogen into nitrite and nitrate through nitrifying bacteria and nitrosobacteria, and then carries out denitrification to convert the nitrate into nitrogen; however, in both of the above-mentioned sewage treatment methods, bleaching powder or nitrifying bacteria and the like need to be added into the sewage, and these additives will produce precipitates when the additives do not fully contact and react with the sewage, and when the total nitrogen content of the sewage is qualified and the sewage is discharged into a river, the additives will affect the growth environment of chlorella or some protists in the water, destroy the ecology, and need to be improved urgently.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a carbon-based adsorption catalytic treatment device which is simple in structure, reasonable in design and convenient for removing total nitrogen in sewage, and adopts a quantitative and fixed-point mode to carry out the throwing work of a carbon-based adsorption catalyst, so that the waste of resources is reduced, meanwhile, the carbon-based adsorption catalyst is convenient to recover and replace, the influence on an external water body is reduced, and the damage to the ecological environment is reduced.
In order to achieve the purpose, the invention adopts the technical scheme that: the device comprises a travelling mechanism, a fixed frame, a second motor, a scroll, a first shaft seat, a pull rope, a sling and a hanging ring; a reaction tank is fixedly embedded below the ground; the travelling mechanism comprises a wheel seat, travelling wheels, a first motor and an I-shaped guide rail; i-shaped guide rails are symmetrically and fixedly arranged on the ground at the left side and the right side of the reaction tank, wheel seats are erected on the I-shaped guide rails, walking wheels are rotatably arranged in the wheel seats through wheel shafts, and the bottom surfaces of the walking wheels are in contact with the top surfaces of the I-shaped guide rails; the outer side wall of the wheel seat is fixedly provided with a first motor through a motor bracket, and the output end of the first motor is fixedly connected with a wheel shaft in the middle of the travelling wheel after rotating to penetrate through the outer side wall of the wheel seat through a bearing;
a fixing frame is arranged above the reaction tank, the fixing frame is arranged in an inverted U shape, and the bottom ends of the left side and the right side of the fixing frame are respectively fixedly arranged at the upper parts of the wheel seats on the left side and the right side; a first shaft seat is fixedly arranged on the bottom surface of the horizontal end of the fixing frame, a scroll is rotatably arranged in the middle of the first shaft seat through a bearing, a second motor is fixedly arranged on the front side wall of the first shaft seat through a motor support, and the output end of the second motor is fixedly connected with the central shaft of the scroll; the first motor and the second motor are both connected with an external power supply; the reel is wound with a guy cable; a frame is arranged in the reaction tank, lifting rings are symmetrically and fixedly arranged on four corners of the top surface of the frame, lifting ropes are fixedly tied on the lifting rings, and the upper ends of the lifting ropes are fixedly connected with the lower ends of the lifting ropes; a plurality of net cages are inserted in the middle of the frame, and the front side wall and the rear side wall of the plurality of net cages are fixedly connected with the front side wall and the rear side wall of the frame through hasps respectively; the inside of the net cage is filled with carbon-based adsorption catalyst.
Furthermore, photoelectric switches are symmetrically and fixedly arranged at the front end and the rear end of the top surface of the I-shaped guide rail and are connected with an external power supply; the photoelectric switch limits the travel of the traveling mechanism in the front-back operation.
Furthermore, two partition plates are fixedly arranged inside the frame among the net cages, and a gap is formed between the two partition plates; through holes are formed in the upper side surface and the lower side surface of the frame and the middle parts of the two clapboards; the sewage contacts and reacts with the carbon-based adsorption catalyst in the net cage through the gap between the two partition plates and the through hole.
Furthermore, the left side wall and the right side wall in the wheel seat are fixedly provided with limiting grooves, the limiting grooves and the wheel seat are of an integrated structure, and the left side edge and the right side edge of the horizontal end of the upper side of the I-shaped guide rail are respectively movably embedded in the limiting grooves; the limiting groove limits the position of the traveling mechanism on the I-shaped guide rail, and the phenomenon of derailment is prevented.
Furthermore, the wheel seats on the left side and the right side of the I-shaped guide rail are respectively and rotatably provided with anti-roll rollers through wheel shafts, and the upper side walls of the anti-roll rollers are arranged in a manner of being abutted to the lower side walls of the horizontal plane on the upper side of the I-shaped guide rail; when the anti-roll roller runs forwards and backwards on the running mechanism, the roller seat is prevented from rolling, and the running mechanism is prevented from being influenced.
Furthermore, fixed plates are symmetrically and fixedly arranged on the inner side walls of the fixed frames on the left side and the right side of the inhaul cable, a plurality of second shaft seats are fixedly arranged on the opposite surfaces of the fixed plates on the left side and the right side at equal intervals, guide wheels are rotatably arranged in the middle of each second shaft seat through bearings, and the inhaul cable is clamped in the middle of the guide wheels on the left side and the right side; when the stay cable is wound and unwound through the reel, the guide wheels on the left side and the right side limit the left-right position of the stay cable, so that the left-right impact of the lower frame in the reaction tank is avoided.
The working principle of the invention is as follows: discharging the sewage subjected to primary filtration treatment into a reaction tank, then inserting a net cage filled with carbon-based adsorption catalyst into the frame, fixing the net cage through a hasp, opening a first motor and a second motor through an external control switch, and rotating a reel driven by the output end of the second motor so as to lower a stay cable and enable the frame to be wholly immersed into the sewage; the output end of the first motor starts to rotate, so that the travelling wheels move back and forth on the I-shaped guide rail under the driving of the wheel shafts, the frame further moves back and forth in the sewage, and the carbon-based adsorption catalyst adopts a carbon-based adsorption catalyst with the pore volume of 0.5cm3The method comprises the following steps that the total nitrogen in the sewage is adsorbed by the photocatalytic carbon-based active adsorption material in the per gram mode, the photocatalytic reaction is carried out after the adsorption, the sewage after the reaction is finished can be discharged after being detected to be qualified, and if the sewage is not qualified, the steps are repeated.
After adopting the structure, the invention has the beneficial effects that:
1. the front and back putting positions of the frame are changed through the travelling mechanism, the putting depth of the frame is changed through the reel, and the putting work of the carbon-based adsorption catalyst is carried out in a quantitative and fixed-point mode, so that the waste of resources is reduced;
2. the net cage is taken out by opening the hasp, so that the carbon-based adsorption catalyst is convenient to recover and replace, the influence on an external water body is reduced, and the damage to the ecological environment is reduced;
3. running gear controls through a motor, and the spool controls through No. two motors, convenient operation, and degree of mechanization is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic view showing a connection structure of the frame and the net cage of the present invention.
Fig. 4 is a top view of fig. 3.
Description of reference numerals:
the device comprises a reaction tank 1, a traveling mechanism 2, a wheel seat 2-1, traveling wheels 2-2, a first motor 2-3, an I-shaped guide rail 2-4, a fixing frame 3, a first shaft seat 4, a scroll 5, a second motor 6, a guy cable 7, a frame 8, a hoisting ring 9, a hoisting cable 10, a net cage 11, a hasp 12, a carbon-based adsorption catalyst 13, a photoelectric switch 14, a partition plate 15, a through hole 16, a limiting groove 17, a side-inclination-preventing roller 18, a fixing plate 19, a second shaft seat 20 and a guide wheel 21.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, the technical solution adopted by the present embodiment is: the device comprises a travelling mechanism 2, a fixed frame 3, a second motor 6, a scroll 5, a first shaft seat 4, a guy cable 7, a sling 10 and a hanging ring 9; a reaction tank 1 is fixedly embedded below the ground, the reaction tank 1 is built by concrete, and the reaction tank 1 is provided with a water inlet pipe and a water outlet pipe; the travelling mechanism 2 comprises a wheel seat 2-1, a travelling wheel 2-2, a first motor 2-3 and an I-shaped guide rail 2-4; i-shaped guide rails 2-4 are symmetrically and fixedly arranged on the ground on the left side and the right side of the reaction tank 1 through bolts, the I-shaped guide rails 2-4 are made of I-shaped steel, wheel seats 2-1 are erected on the I-shaped guide rails 2-4, traveling wheels 2-2 are rotatably arranged in the wheel seats 2-1 through wheel shafts, the wheel shafts are rotatably inserted on the left side wall and the right side wall of the wheel seats 2-1 through bearings, the bottom surfaces of the traveling wheels 2-2 are in contact with the top surfaces of the I-shaped guide rails 2-4, and the traveling wheels 2-2 can travel on the I-shaped guide rails 2-4; the outer side wall of the wheel seat 2-1 is fixedly provided with a first motor 2-3 through a motor bracket and a bolt, the first motor 2-3 adopts a model of 60KTYZ, and the output end of the first motor 2-3 is fixedly connected with a wheel shaft in the middle of the traveling wheel 2-2 after rotating through the outer side wall of the wheel seat 2-1 through a bearing; the left side wall and the right side wall inside the wheel seat 2-1 are both fixedly provided with a limiting groove 17, the limiting groove 17 and the wheel seat 2-1 are integrally formed, and the left side edge and the right side edge of the horizontal end of the upper side of the I-shaped guide rail 2-4 are respectively and movably embedded inside the limiting groove 17; the limiting groove 17 limits the position of the travelling mechanism 2 on the I-shaped guide rail 2-4, so as to prevent derailment; the wheel seats 2-1 on the left and right sides of the I-shaped guide rail 2-4 are respectively provided with anti-roll rollers 18 in the inner part through wheel shafts in a rotating way, and the upper side walls of the anti-roll rollers 18 are arranged in a manner of being abutted to the lower side walls of the horizontal plane on the upper side of the I-shaped guide rail 2-4; when the walking mechanism 2 runs forwards and backwards, the anti-roll roller 18 avoids the roller seat 2-1 from rolling to influence the running of the walking mechanism 2;
a fixing frame 3 is arranged above the reaction tank 1, the fixing frame 3 is arranged in an inverted U shape, and the bottom ends of the left side and the right side of the fixing frame 3 are respectively fixedly welded on the upper parts of the wheel seats 2-1 at the left side and the right side; a first shaft seat 4 is fixedly welded on the bottom surface of the horizontal end of the fixing frame 3, a scroll 5 is rotatably arranged in the middle of the first shaft seat 4 through a bearing, a central shaft of the scroll 5 is rotatably inserted in the middle of the first shaft seat 4 through the bearing, a second motor 6 is fixedly arranged on the front side wall of the first shaft seat 4 through a motor bracket and a bolt, the second motor 6 is 60KTYZ in model, and the output end of the second motor 6 is fixedly welded with the central shaft of the scroll 5; the first motor 2-3 and the second motor 6 are connected with an external power supply through power lines(ii) a A guy cable 7 is wound on the scroll 5, the inner end of the guy cable 7 is fixedly connected with the scroll 5, and the outer end of the guy cable 7 is a movable end; a frame 8 is arranged in the reaction tank 1, lifting rings 9 are symmetrically and fixedly welded on four corners of the top surface of the frame 8, lifting ropes 10 are fixedly bound on the lifting rings 9, and the upper ends of the lifting ropes 10 are fixedly bound with the lower ends of the lifting ropes 7 through connecting pieces; two net cages 11 are inserted in the middle of the frame 8, the front side wall and the rear side wall of the plurality of net cages 11 are respectively and fixedly connected with the front side wall and the rear side wall of the frame 8 through hasps 12, and the lugs are fixed on the side walls of the net cages 11; the inside of the net cage 11 is filled with a carbon-based adsorption catalyst 13, the carbon-based adsorption catalyst 13 is a carbon-based active adsorption material, and the specific surface area is 1000m3(g), pore size distribution of 2-4nm, pore volume of 0.5cm3The carbon content is 55 percent, and the particle surface of the carbon-based active adsorption material is provided with a nano photocatalyst coating; two partition plates 15 are fixedly arranged inside the frame 8 among the net cages 11, and a gap is arranged between the two partition plates 15; through holes 16 are formed in the upper side surface and the lower side surface of the frame 8 and the middle parts of the two partition plates 15; the sewage is contacted and reacted with the carbon-based adsorption catalyst 13 in the net cage 11 through the gap between the two partition plates 15 and the through hole 16, so that the contact area of the sewage is increased, and the reaction is more sufficient;
The working principle of the specific embodiment is as follows: the sewage after the primary filtration treatment is carried outDischarging the waste water into the reaction tank 1, inserting a net cage 11 filled with a carbon-based adsorption catalyst 13 into the frame 8, fixing the net cage by a hasp 12, opening the first motor 2-3 and the second motor 6 by an external control switch, rotating a reel 5 driven by the output end of the second motor 6, and lowering the inhaul cable 7 to enable the frame 8 to be wholly immersed into the waste water; the output end of the first motor 2-3 starts to rotate, so that the travelling wheels 2-2 move back and forth on the I-shaped guide rails 2-4 under the driving of the wheel shafts, the frame 8 further moves back and forth in the sewage, and the carbon-based adsorption catalyst 13 adopts a carbon-based adsorption catalyst with the pore volume of 0.5cm3The method comprises the following steps that the total nitrogen in the sewage is adsorbed by the photocatalytic carbon-based active adsorption material in the per gram mode, the photocatalytic reaction is carried out after the adsorption, the sewage after the reaction is finished can be discharged after being detected to be qualified, and if the sewage is not qualified, the steps are repeated.
After adopting above-mentioned structure, this embodiment beneficial effect does:
1. the front and back feeding positions of the frame 8 are changed through the travelling mechanism 2, the feeding depth of the frame 8 is changed through the scroll 5, the feeding work of the carbon-based adsorption catalyst 13 is carried out in a quantitative and fixed-point mode, and the waste of resources is reduced;
2. the net cage 11 is taken out by opening the hasp 12, so that the carbon-based adsorption catalyst 13 is convenient to recover and replace, the influence on an external water body is reduced, and the damage to the ecological environment is reduced;
3. the travelling mechanism 2 is controlled by a first motor 2-3, the reel 5 is controlled by a second motor 6, the operation is convenient, and the degree of mechanization is high.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a carbon-based adsorbs catalytic treatment device convenient to remove total nitrogen in sewage which characterized in that: the device comprises a travelling mechanism (2), a fixed frame (3), a second motor (6), a scroll (5), a first shaft seat (4), a stay cable (7), a sling (10) and a hanging ring (9); a reaction tank (1) is fixedly embedded below the ground; the travelling mechanism (2) comprises a wheel seat (2-1), travelling wheels (2-2), a first motor (2-3) and an I-shaped guide rail (2-4); i-shaped guide rails (2-4) are symmetrically and fixedly arranged on the ground at the left side and the right side of the reaction tank (1), wheel seats (2-1) are erected on the I-shaped guide rails (2-4), traveling wheels (2-2) are rotatably arranged in the wheel seats (2-1) through wheel shafts, and the bottom surfaces of the traveling wheels (2-2) are in contact with the top surfaces of the I-shaped guide rails (2-4); the outer side wall of the wheel seat (2-1) is fixedly provided with a first motor (2-3) through a motor bracket, and the output end of the first motor (2-3) is fixedly connected with a wheel shaft in the middle of the traveling wheel (2-2) after rotating to penetrate through the outer side wall of the wheel seat (2-1) through a bearing;
a fixing frame (3) is arranged above the reaction tank (1), the fixing frame (3) is arranged in an inverted U shape, and the bottom ends of the left side and the right side of the fixing frame (3) are respectively fixedly arranged at the upper parts of the wheel seats (2-1) on the left side and the right side; a first shaft seat (4) is fixedly arranged on the bottom surface of the horizontal end of the fixing frame (3), a scroll (5) is rotatably arranged in the middle of the first shaft seat (4) through a bearing, a second motor (6) is fixedly arranged on the front side wall of the first shaft seat (4) through a motor support, and the output end of the second motor (6) is fixedly connected with the central shaft of the scroll (5); the first motor (2-3) and the second motor (6) are connected with an external power supply; a stay cable (7) is wound on the reel (5); a frame (8) is arranged in the reaction tank (1), lifting rings (9) are symmetrically and fixedly arranged at four corners of the top surface of the frame (8), lifting ropes (10) are fixedly tied on the lifting rings (9), and the upper ends of the lifting ropes (10) are fixedly connected with the lower ends of the pulling ropes (7); a plurality of net boxes (11) are inserted in the middle of the frame (8), and the front side wall and the rear side wall of the plurality of net boxes (11) are respectively fixedly connected with the front side wall and the rear side wall of the frame (8) through hasps (12); the inside of the net cage (11) is filled with a carbon-based adsorption catalyst (13).
2. The carbon-based adsorption catalytic treatment device for facilitating the removal of total nitrogen in sewage according to claim 1, wherein: photoelectric switches (14) are symmetrically and fixedly arranged at the front end and the rear end of the top surface of the I-shaped guide rail (2-4), and the photoelectric switches (14) are connected with an external power supply; the photoelectric switch (14) limits the stroke of the forward and backward operation of the travelling mechanism (2).
3. The carbon-based adsorption catalytic treatment device for facilitating the removal of total nitrogen in sewage according to claim 1, wherein: two partition plates (15) are fixedly arranged inside the frame (8) among the plurality of net cages (11), and a gap is arranged between the two partition plates (15); through holes (16) are formed in the upper side surface and the lower side surface of the frame (8) and the middle parts of the two clapboards (15); the sewage contacts and reacts with the carbon-based adsorption catalyst (13) in the net cage (11) through the gap between the two partition plates (15) and the through hole (16).
4. The carbon-based adsorption catalytic treatment device for facilitating the removal of total nitrogen in sewage according to claim 1, wherein: the left side wall and the right side wall of the inside of the wheel seat (2-1) are respectively fixedly provided with a limiting groove (17), the limiting grooves (17) and the wheel seat (2-1) are of an integrated structure, and the left side edge and the right side edge of the horizontal end of the upper side of the I-shaped guide rail (2-4) are respectively movably embedded in the limiting grooves (17); the limiting groove (17) limits the position of the traveling mechanism (2) on the I-shaped guide rail (2-4) to prevent derailment.
5. The carbon-based adsorption catalytic treatment device for facilitating the removal of total nitrogen in sewage according to claim 1, wherein: the wheel seats (2-1) on the left and right sides of the I-shaped guide rail (2-4) are respectively and rotatably provided with anti-roll rollers (18) through wheel shafts, and the upper side walls of the anti-roll rollers (18) are arranged in a manner of being abutted to the lower side walls of the horizontal plane on the upper side of the I-shaped guide rail (2-4); when the walking mechanism (2) runs forwards and backwards, the anti-roll roller (18) prevents the roller seat (2-1) from rolling to influence the running of the walking mechanism (2).
6. The carbon-based adsorption catalytic treatment device for facilitating the removal of total nitrogen in sewage according to claim 1, wherein: fixing plates (19) are symmetrically and fixedly arranged on the inner side walls of the fixing frames (3) on the left side and the right side of the inhaul cable (7), a plurality of second shaft seats (20) are fixedly arranged on the opposite surfaces of the fixing plates (19) on the left side and the right side at equal intervals, guide wheels (21) are rotatably arranged in the middle of each second shaft seat (20) through bearings, and the inhaul cable (7) is clamped in the middle of the guide wheels (21) on the left side and the right side; when the guy cable (7) is wound and unwound through the reel (5), the guide wheels (21) on the left side and the right side limit the left-right position of the guy cable (7), so that the left-right impact of the lower frame (8) in the reaction tank (1) is avoided.
7. The carbon-based adsorption catalytic treatment device for facilitating the removal of total nitrogen in sewage according to claim 1, wherein: the working principle is as follows: the sewage after primary filtration treatment is discharged into a reaction tank (1), then a net cage (11) filled with a carbon-based adsorption catalyst (13) is inserted into a frame (8) and fixed through a hasp (12), a first motor (2-3) and a second motor (6) are opened through an external control switch, a scroll (5) driven by the output end of the second motor (6) rotates, and therefore a stay cable (7) is placed down, and the frame (8) is integrally immersed into the sewage; the output end of the first motor (2-3) starts to rotate, so that the travelling wheels (2-2) move back and forth on the I-shaped guide rails (2-4) under the driving of the wheel shafts, the frame (8) further moves back and forth in the sewage, and the carbon-based adsorption catalyst (13) adopts a carbon-based adsorption catalyst with the pore volume of 0.5cm3The method comprises the following steps that the total nitrogen in the sewage is adsorbed by the photocatalytic carbon-based active adsorption material in the per gram mode, the photocatalytic reaction is carried out after the adsorption, the sewage after the reaction is finished can be discharged after being detected to be qualified, and if the sewage is not qualified, the steps are repeated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010254664.6A CN111410260A (en) | 2020-04-02 | 2020-04-02 | Carbon-based adsorption catalytic treatment device convenient for removing total nitrogen in sewage |
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| CN202010254664.6A CN111410260A (en) | 2020-04-02 | 2020-04-02 | Carbon-based adsorption catalytic treatment device convenient for removing total nitrogen in sewage |
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Application publication date: 20200714 |