CN115028294A - Magnetic catalytic oxidation wastewater treatment system with recycling integration - Google Patents
Magnetic catalytic oxidation wastewater treatment system with recycling integration Download PDFInfo
- Publication number
- CN115028294A CN115028294A CN202210847201.XA CN202210847201A CN115028294A CN 115028294 A CN115028294 A CN 115028294A CN 202210847201 A CN202210847201 A CN 202210847201A CN 115028294 A CN115028294 A CN 115028294A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- wastewater treatment
- water
- collecting tank
- conveyor belt
- 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.)
- Granted
Links
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 115
- 230000003647 oxidation Effects 0.000 title claims abstract description 14
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 14
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 12
- 238000004064 recycling Methods 0.000 title claims abstract description 10
- 230000010354 integration Effects 0.000 title description 2
- 239000003054 catalyst Substances 0.000 claims abstract description 221
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000011084 recovery Methods 0.000 claims abstract description 78
- 239000002351 wastewater Substances 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000007800 oxidant agent Substances 0.000 claims description 61
- 230000001590 oxidative effect Effects 0.000 claims description 44
- 238000010438 heat treatment Methods 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 18
- 239000002245 particle Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000012425 OXONE® Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 235000019395 ammonium persulphate Nutrition 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LFINSDKRYHNMRB-UHFFFAOYSA-N diazanium;oxido sulfate Chemical compound [NH4+].[NH4+].[O-]OS([O-])(=O)=O LFINSDKRYHNMRB-UHFFFAOYSA-N 0.000 description 1
- YMGGAHMANIOXGP-UHFFFAOYSA-L disodium;oxido sulfate Chemical compound [Na+].[Na+].[O-]OS([O-])(=O)=O YMGGAHMANIOXGP-UHFFFAOYSA-L 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical group O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical class [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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 relates to a recycling integrated magnetic catalytic oxidation wastewater treatment system, which comprises a pretreatment unit, a plurality of wastewater treatment units, a plurality of catalyst recovery units, a post-treatment unit and a control unit, wherein the pretreatment unit is connected with the plurality of wastewater treatment units in parallel through pipelines, and each wastewater treatment unit is correspondingly connected with one catalyst recovery unit; the control unit is in communication connection with other units; the catalyst recovery unit comprises a magnetic recovery conveyor belt, a catalyst collecting tank and a water collecting tank, wherein the catalyst collecting tank is arranged on one side below the magnetic recovery conveyor belt, and the water collecting tank is arranged on the other side below the magnetic recovery conveyor belt; the post-treatment unit is connected in parallel with the water collecting tanks of the catalyst recovery units through pipelines and is used for receiving the wastewater separated from the catalyst; the next-stage wastewater treatment unit is connected with the catalyst collecting tank of the first-stage catalyst recovery unit and is used for utilizing the catalyst used by the previous-stage wastewater treatment unit.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a recycling integrated magnetic catalytic oxidation wastewater treatment system.
Background
With the development of the industry in China, a large amount of industrial wastewater is generated every year, the wastewater contains various toxic and nondegradable organic pollutants, and the pollution of natural water and soil is inevitably caused by no treatment and discharge to the environment, so that the ecological environment and the human health are threatened. At present, the main organic wastewater treatment technologies include flocculation, precipitation, adsorption, microbial treatment, chemical oxidation, and the like. The advanced oxidation technology has the characteristics of green and high efficiency, is widely applied and mainly comprises a Fenton-like technology, an activated persulfate technology and a photocatalytic oxidation technology.
At present, one of the difficulties with the above advanced oxidation technologies is catalyst recovery and reuse. At present, the catalyst is recycled mainly by using a magnetic separation technology aiming at a magnetic catalyst. Patent 202110986126.0 discloses an upflow fluidized bed reactor and a method for treating antibiotic wastewater, in which a magnetic catalyst is fluidized in the wastewater by aeration, and catalytic degradation reaction is performed, then the treated wastewater is discharged into a separator to magnetically separate the catalyst, and finally the treated wastewater is discharged. The most important problem that separation flow and device exist like this is that the recovery process and the process of recycling of catalyst separate, need collect the catalyst of retrieving and store and drop into next batch waste water treatment after a period of time again, and often mix the catalyst of different use times and unified the depositing, it is not friendly enough to the big system of systematization, integration, high-efficient waste water treatment, the catalyst utilization efficiency is not high.
Disclosure of Invention
Aiming at the problems, the invention provides a recycling integrated magnetic catalytic oxidation wastewater treatment system, which can efficiently treat organic wastewater and solve the problems that a magnetic catalyst cannot be continuously utilized after being recycled and the automation degree is low.
The recycling integrated magnetic catalytic oxidation wastewater treatment system comprises a pretreatment unit, a plurality of wastewater treatment units, a plurality of catalyst recovery units, a post-treatment unit and a control unit, wherein the pretreatment unit is connected in parallel with the plurality of wastewater treatment units through a pipeline, and each wastewater treatment unit is correspondingly connected with one catalyst recovery unit; the control unit is in communication connection with the pretreatment unit, the wastewater treatment units, the catalyst recovery units and the post-treatment unit;
the catalyst recovery unit comprises a magnetic recovery conveyor belt, a catalyst collecting tank and a water collecting tank, wherein the catalyst collecting tank is arranged on one side below the magnetic recovery conveyor belt, and the water collecting tank is arranged on the other side below the magnetic recovery conveyor belt;
the post-treatment unit is connected in parallel with the water collecting tanks of the catalyst recovery units through pipelines and is used for receiving the wastewater separated from the catalyst; the next-stage wastewater treatment unit is connected with the catalyst collecting tank of the first-stage catalyst recovery unit and is used for utilizing the catalyst used by the previous-stage wastewater treatment unit.
Optionally, the wastewater treatment unit is cylindrical and is provided with a water distribution area, a wastewater treatment area, a reflux area and an overflow area from bottom to top; the bottom in water distribution district is equipped with the second water inlet, is equipped with the carrier layer board between water distribution district and the waste water treatment district, is equipped with the carrier between waste water treatment district and the backward flow district and separates the net, is equipped with the overflow weir between backward flow district and the overflow district, and the export of overflow weir is equipped with the second delivery port for the feed liquid after output wastewater treatment unit handles.
Further optionally, a catalyst inlet and an oxidant inlet are respectively arranged on two sides of the water distribution area, a catalyst backflow outlet and an oxidant backflow outlet are respectively arranged on two sides of the backflow area, and an oxidant agent pool is arranged between the oxidant backflow outlet and the oxidant inlet; preferably, a catalyst agent pool is arranged between the catalyst return outlet and the catalyst inlet of the first wastewater treatment unit.
Optionally, the bottom of the water distribution area comprises a water distribution pipeline, and a catalyst distribution pipeline and an oxidant distribution pipeline above the water distribution pipeline, so that the inlet water, the catalyst and the oxidant are uniformly dispersed and mixed;
the water distribution pipeline comprises a plurality of radial branch pipes and a central inlet, the radial branch pipes are in a radial shape, the second water inlet is connected with the central inlet, and a plurality of water distribution nozzles are uniformly arranged on each radial branch pipe;
the catalyst distribution pipeline is a first annular coil pipe, an inlet of the catalyst distribution pipeline is connected with a catalyst inlet, and a plurality of catalyst nozzles are uniformly arranged on the upper surface of the first annular coil pipe;
the oxidant distribution pipeline is a second annular coil pipe, an inlet of the oxidant distribution pipeline is connected with an oxidant inlet, and a plurality of oxidant nozzles are uniformly arranged on the upper surface of the second annular coil pipe.
Optionally, the catalyst recovery unit comprises a triangular magnetic recovery conveyor belt, a water outlet spray head above the triangular magnetic recovery conveyor belt, a catalyst collecting tank below the triangular magnetic recovery conveyor belt, and a water collecting tank below the triangular magnetic recovery conveyor belt, wherein the water outlet spray head is connected with a second water outlet of the corresponding wastewater treatment unit;
the magnetic recovery conveyor belt is supported by a vertex rotating shaft, a short side rotating shaft and a long side rotating shaft at three points to form a triangle with a long side, a short side and a horizontal bottom edge, the water outlet spray head is positioned above the long side, and the lower surface of the long side is provided with a magnetic device; the catalyst collecting tank is arranged below the horizontal bottom edge and at one end close to the short-edge rotating shaft, and the collecting tank is arranged below the horizontal bottom edge and at one end close to the long-edge rotating shaft.
Optionally, the magnetic device is a plurality of permanent magnetic rollers which are closely arranged, and the permanent magnetic rollers are tightly attached to the lower surface of the long side and used for attracting the magnetic catalyst in the wastewater on the long side conveyor belt.
Optionally, the magnetic device is a magnetic conveyor belt, the magnetic conveyor belt is supported by a vertex rotating shaft and a long-side rotating shaft and rotates under the drive of a vertex motor and a long-side motor, the upper surface of the magnetic conveyor belt is tightly attached to the lower surface of the long side of the magnetic recovery conveyor belt to move for attracting the catalyst to climb upwards, after the catalyst reaches the vertex rotating shaft, the magnetic conveyor belt is separated from the short side and loses magnetic attraction, and the catalyst falls into the catalyst collecting tank below from the short side to be recovered.
Further optionally, a rolling brush is arranged on the horizontal bottom edge near the short edge rotating shaft, and the rolling brush is in contact with the lower surface of the horizontal bottom edge.
Optionally, a stirring device is arranged in the catalyst collecting tank, an outlet at the bottom of the catalyst collecting tank is connected with a catalyst agent tank of the next wastewater treatment unit through a pipeline, a catalyst backflow outlet of the next wastewater treatment unit is connected with the catalyst collecting tank through a pipeline, the catalyst backflow outlet is used for introducing backflow wastewater of the next wastewater treatment unit into the catalyst collecting tank, and suspension is formed between the backflow wastewater and the collected catalyst under the action of the stirring device and is input into the next wastewater treatment unit for continuous use.
In the wastewater treatment unit, the catalyst is mainly Fe 3 O 4 Catalytic oxidation degradation of pollutants in wastewater and Fe 3 O 4 Fe may also be generated 2 O 3 And/or FeO, Fe 2 O 3 Has weak magnetism, FeO has no magnetism, and the magnetic recovery conveyor belt can recover Fe 3 O 4 And most of Fe 2 O 3 FeO and a small proportion of Fe 2 O 3 Will enter the water collecting tank along with the waste water,can not be recycled, and causes the waste of the catalyst. Meanwhile, catalyst particles are in full contact, friction and impact with the first filler and the second filler, the physical size of the catalyst is reduced, catalytic degradation treatment of wastewater is facilitated, recovery of a magnetic recovery conveyor belt is not facilitated, and small-particle catalysts enter a water collecting tank along with the wastewater. In view of the above problems, the present invention proposes the following preferred embodiments.
Preferably, the top of the water collecting tank is provided with a third filter screen and a bottom rotating shaft movably connected with the third filter screen; the side surfaces of the catalyst collecting tank and the water collecting tank are provided with heating devices, and the heating devices are respectively connected with the water collecting tank and the catalyst collecting tank through a first conveyor belt and a second conveyor belt; the third filter screen can rotate above the top of the water collecting tank and the first conveyor belt by taking the rotating shaft at the bottom as a fulcrum, namely the third filter screen can cover the top of the water collecting tank and be used for intercepting and recovering iron-containing oxide solids, the third filter screen rotates, the intercepted solids are overturned and poured onto the first conveyor belt and then are input into a heating device for heating, and FeO is converted into Fe 3 O 4 And then the regenerated catalyst is conveyed to a catalyst collecting tank by a second conveyor belt and used for the next wastewater treatment unit.
Preferably, the heating device is connected to an oxygen supply device, and the supply amount of oxygen can be controlled.
Optionally, the post-treatment unit is provided with a plurality of third water inlets and a third water outlet, and each third water inlet is connected with the corresponding water collecting tank of the catalyst recovery unit through a pipeline and a water pump.
The wastewater treatment system can determine the times of catalyst reutilization according to the actual catalyst utilization condition, further determine the number of the wastewater treatment units and the catalyst recovery units, and the wastewater treatment units and the catalyst recovery units in the same stage are used in series. The catalyst backflow outlet of the first-stage wastewater treatment unit is sequentially connected with the catalyst agent pool and the catalyst inlet of the first-stage wastewater treatment unit. The catalyst backflow outlet of the subsequent wastewater treatment unit is sequentially connected with the catalyst collecting pool of the catalyst recovery unit of the previous stage, the catalyst agent pool of the unit and the catalyst inlet, so that the next-stage wastewater treatment unit utilizes the catalyst recovered by the previous-stage wastewater treatment unit without additionally supplementing new catalyst, thereby not only realizing the graded recovery of the catalyst, but also utilizing the recovered catalyst in the next-stage wastewater treatment unit to the maximum extent.
The catalyst recovery unit at the end may not be connected to a subsequent wastewater treatment unit, and a stirring device may not be installed in the catalyst collecting tank of the unit.
Drawings
FIG. 1 is a schematic structural diagram of the recycling integrated magnetic catalytic oxidation wastewater treatment system;
FIG. 2 is a schematic view of a water distribution pipe;
FIG. 3 shows a catalyst distribution pipe and an oxidant distribution pipe.
In the figure, 1-pretreatment unit, 101-first water inlet, 102-first water outlet, 2-wastewater treatment unit, 201-water distribution area, 202-wastewater treatment area, 203-carrier supporting plate, 204-carrier separation net, 205-overflow weir, 206-catalyst inlet, 207-oxidant inlet, 208-catalyst return outlet, 209-oxidant return outlet, 210-catalyst agent pool, 211-oxidant agent pool, 212-water distribution pipe, 2121-radiation branch pipe, 2122-central inlet, 2123-water distribution nozzle, 213-catalyst distribution pipe, 2131-catalyst nozzle, 214-oxidant distribution pipe, 2141-oxidant nozzle, 3-catalyst recovery unit, 301-magnetic recovery conveyer belt, 302-water outlet spray head, 303-long side, 304-short side, 305-horizontal bottom, 306-rolling brush, 4-post-treatment unit, 401-third water inlet, 402-third water outlet, 5-control unit, 6-catalyst collecting tank and 7-water collecting tank.
Detailed Description
The embodiment provides a recycling integrated magnetic catalytic oxidation wastewater treatment system, which comprises a pretreatment unit 1, a plurality of wastewater treatment units 2, a plurality of catalyst recovery units 3, a post-treatment unit 4 and a control unit 5, as shown in fig. 1-3, wherein the pretreatment unit 1 is connected in parallel with the plurality of wastewater treatment units 2 through pipelines, and each wastewater treatment unit 2 is correspondingly connected with one catalyst recovery unit 3; the control unit 5 is in communication connection with the pretreatment unit 1, the plurality of wastewater treatment units 2, the plurality of catalyst recovery units 3 and the post-treatment unit 4;
the catalyst recovery unit 3 comprises a magnetic recovery conveyor belt 301, a catalyst collecting tank 6 and a water collecting tank 7, wherein the catalyst collecting tank 6 is arranged on one side below the magnetic recovery conveyor belt 301, and the water collecting tank 7 is arranged on the other side;
the post-treatment unit 4 is connected in parallel with the water collecting tanks 7 of the catalyst recovery units 3 through pipelines and is used for receiving the wastewater separated from the catalyst; the next-stage wastewater treatment unit 2 is connected with the catalyst collecting tank 6 of the first-stage catalyst recovery unit 3 and is used for utilizing the catalyst used by the previous-stage wastewater treatment unit 2.
Optionally, the pretreatment unit 1 is provided with a first water inlet 101 and a plurality of first water outlets 102, and each first water outlet 102 is connected to one wastewater treatment unit 2. Preferably, the first water outlet 102 is connected with the corresponding wastewater treatment unit 2 through a pipeline and a jet pump. The wastewater enters a pretreatment unit 1 through a water pump, is subjected to sand setting, oil removal and coagulation treatment in the pretreatment unit 1, and then is input into a plurality of wastewater treatment units 2 connected in parallel.
Optionally, the wastewater treatment unit 2 is cylindrical and is provided with a water distribution area 201, a wastewater treatment area 202, a reflux area and an overflow area from bottom to top; the bottom in water distribution district 201 is equipped with the second water inlet, is equipped with carrier layer board 203 between water distribution district 201 and the waste water treatment district 202, is equipped with carrier separation net 204 between waste water treatment district 202 and the backward flow district, is equipped with overflow weir 205 between backward flow district and the overflow district, and overflow weir 205's export is equipped with the second delivery port for the feed liquid after output wastewater treatment unit 2 handles.
Further optionally, a catalyst inlet 206 and an oxidant inlet 207 are respectively arranged on two sides of the water distribution area 201, a catalyst backflow outlet 208 and an oxidant backflow outlet 209 are respectively arranged on two sides of the backflow area, and an oxidant agent pool 211 is arranged between the oxidant backflow outlet 209 and the oxidant inlet 207; preferably, a catalyst agent pool 210 is arranged between the catalyst return outlet 208 and the catalyst inlet 206 of the first wastewater treatment unit 2; water pumps are respectively arranged on the pipelines on the upstream and the downstream of the catalyst agent pool 210 and the pipelines on the upstream and the downstream of the oxidant agent pool 211, and are used for returning the water body in the return area to the catalyst agent pool 210 and the oxidant agent pool 211 so as to be input into the water distribution area 201 and the wastewater treatment area 202 again for utilization.
Preferably, a first filter is disposed at an upstream side of the oxidizer return outlet 209 to prevent catalyst particles from entering the oxidizer return outlet 209 and the oxidizer agent pool 211.
Optionally, the bottom of the water distribution area 201 includes a water distribution pipe 212, and a catalyst distribution pipe 213 and an oxidant distribution pipe 214 above the water distribution pipe 212, so that the inlet water, the catalyst and the oxidant are uniformly dispersed and mixed;
the water distribution pipe 212 comprises a plurality of radial branch pipes 2121 and a central inlet 2122, the radial branch pipes are radial, the second water inlet is connected with the central inlet, and a plurality of water distribution nozzles 2123 are uniformly arranged on each radial branch pipe;
the catalyst distribution pipeline 213 is a first annular coil pipe, an inlet of the catalyst distribution pipeline 213 is connected with the catalyst inlet 206, and the upper surface of the first annular coil pipe is uniformly provided with a plurality of catalyst nozzles 2131;
the oxidant distribution pipe 214 is a second annular coil, an inlet of the oxidant distribution pipe 214 is connected to the oxidant inlet 207, and a plurality of oxidant nozzles 2141 are uniformly arranged on the upper surface of the second annular coil.
Optionally, the first annular coil and the second annular coil are at the same horizontal height, and are alternately coiled and not communicated with each other. Because the first annular coil sprays out catalyst particles and the second annular coil sprays out oxidant solution, if the second annular coil is arranged below, the oxidant corrodes the first annular disc above, and if the first annular disc is arranged below, the catalyst particles impact the second annular disc above.
Optionally, the water distribution area 201 is filled with a first filler, the first filler is a spherical object, the material of the first filler is one or a combination of two or more of glass, polytetrafluoroethylene and stainless steel, and the first filler further promotes the mixture of the inlet water, the catalyst and the oxidant.
The water body of the pretreatment unit 1 enters from the second water inlet, then enters the central inlet of the water distribution pipeline 212, and finally uniformly enters the water distribution area 201 through the water distribution nozzles of the radial branch pipes; meanwhile, the catalyst in the catalyst agent pool 210 is input into the catalyst distribution pipeline 213 through the catalyst inlet 206, and then is uniformly sprayed into the water distribution area 201 from the catalyst nozzle of the first annular coil; meanwhile, the oxidant of the oxidant agent pool 211 is input into the oxidant distribution pipeline 214 through the oxidant inlet 207, and then is uniformly sprayed into the water distribution area 201 from the oxidant nozzle of the second annular coil. The wastewater, catalyst and oxidant flow through the gaps of the first filler to form turbulent flow with high flow velocity, and the turbulent flow is fully and uniformly mixed and then enters the wastewater treatment area 202 through the carrier plate 203.
Optionally, the oxidant is selected from one or a mixture of more than two of hydrogen peroxide, potassium peroxymonosulfate, potassium peroxydisulfate, sodium peroxymonosulfate, sodium peroxydisulfate, ammonium peroxymonosulfate and ammonium peroxydisulfate, and the catalyst is selected from ferroferric oxide or various derivative compounds thereof.
Optionally, a second filler is arranged in the wastewater treatment area 202, and the second filler is one or a combination of more than two of iron sand, quartz sand, polytetrafluoroethylene particles and ceramsite.
The carrier supporting plate 203 is used for separating a first filler from a second filler, and the aperture of the carrier supporting plate 203 is smaller than the particle size of the first filler and the particle size of the second filler; the pore diameter of the carrier screen 204 is smaller than that of the second filler, so that the second filler is prevented from being lost. The carrier supporting plate 203 and the carrier separation net 204 are made of stainless steel or polytetrafluoroethylene.
The wastewater passes through the second filler in the wastewater treatment area 202, the second filler forms a fluidized state, the wastewater is further mixed, the wastewater, the catalyst and the oxidant are fully contacted, a large amount of free radicals are generated to oxidize and degrade pollutants, the purified wastewater passes through the carrier separation net 204, and the second filler is intercepted in the wastewater treatment area 202. The wastewater enters the reflux zone, part of the treated wastewater returns to the catalyst agent pool 210 and the oxidant agent pool 211 through the catalyst reflux outlet 208 and the oxidant reflux outlet 209 to form a suspension of the catalyst and an oxidant solution, and then enters the wastewater treatment unit 2 again, and new agents are continuously added into the catalyst agent pool 210 and the oxidant agent pool 211. Most of the treated wastewater overflows from the overflow weir 205 into the overflow area and then flows to the corresponding catalyst recovery unit 3 through the second water outlet.
Optionally, the catalyst recovery unit 3 includes a triangular magnetic recovery conveyor belt 301, a water outlet spray head 302 above the triangular magnetic recovery conveyor belt, and a catalyst collecting tank 6 and a water collecting tank 7 below the triangular magnetic recovery conveyor belt, and the water outlet spray head 302 is connected to a second water outlet of the corresponding wastewater treatment unit 2;
the magnetic recovery conveyor belt 301 is supported by a vertex rotating shaft, a short side rotating shaft and a long side rotating shaft at three points to form a triangle with a long side 303, a short side 304 and a horizontal bottom 305, the water outlet spray head 302 is positioned above the long side 303, and the lower surface of the long side 303 is provided with a magnetic device; and a catalyst collecting tank 6 is arranged at one end, close to the short-edge rotating shaft, below the horizontal bottom edge 305, and a collecting tank 7 is arranged at one end, close to the long-edge rotating shaft, below the horizontal bottom edge 305.
The water outlet nozzle 302 is conical, and a plurality of small holes are distributed at the bottom of the water outlet nozzle, so that water flow is sprayed out in a dispersing way.
Optionally, the magnetic device is a plurality of closely arranged permanent magnetic rollers, and the permanent magnetic rollers are tightly attached to the lower surface of the long side 303 and used for attracting the magnetic catalyst in the wastewater on the conveyor belt of the long side 303.
The treated wastewater containing the magnetic catalyst is sprinkled on the long side 303 of the magnetic recovery conveyor belt 301 through the water outlet nozzle 302, and the catalyst and the treated water are separated under the action of gravity. The vertex pivot, minor face pivot and long limit pivot correspond respectively and connect vertex motor, minor face motor and long limit motor, magnetic recovery conveyer belt 301 makes anticlockwise rotation under three motor and pivot drive, and long side 303 attracts catalyst through the permanent magnetism roller to climb upwards promptly, loses magnetic attraction after arriving the vertex pivot, and the catalyst falls into catalyst collecting pit 6 of below from short side 304, retrieves the magnetic catalyst. While the treated wastewater on the long side 303 flows under gravity into the sump 7. The short sides 304 are angled 70-90 degrees from the horizontal bottom 305.
Optionally, the magnetic device is a magnetic conveyor belt, the magnetic conveyor belt is supported by a vertex rotating shaft and a long-side rotating shaft and rotates under the driving of a vertex motor and a long-side motor, the upper surface of the magnetic conveyor belt moves in a manner of being tightly attached to the lower surface of the long side 303 of the magnetic recovery conveyor belt 301 and is used for attracting the catalyst to climb upwards, after the magnetic conveyor belt reaches the vertex rotating shaft, the magnetic conveyor belt is separated from the short side 304 and loses magnetic attraction, and the catalyst falls into the catalyst collecting tank 6 below from the short side 304 and is recovered.
Further optionally, a rolling brush 306 is arranged at the position, close to the short-side rotating shaft, of the horizontal bottom side 305, the rolling brush 306 is in contact with the lower surface of the horizontal bottom side 305, and when the rolling brush 306 rotates, the rolling brush and the horizontal bottom side 305 rub against each other, so that the catalyst adhered to the lower surface of the horizontal bottom side 305 is brushed down and falls into the catalyst collecting tank 6.
Optionally, baffles are arranged on two sides of the long side 303 to prevent water from leaking from the side.
Optionally, a stirring device is arranged in the catalyst collecting tank 6, and the bottom outlet is connected to the catalyst agent tank 210 of the next wastewater treatment unit 2 through a pipeline, and the catalyst backflow outlet 208 of the next wastewater treatment unit 2 is connected to the catalyst collecting tank 6 through a pipeline, and is used for introducing backflow wastewater of the next wastewater treatment unit 2 into the catalyst collecting tank 6, forming a suspension with the collected catalyst under the action of the stirring device, and inputting the suspension into the next wastewater treatment unit 2 for continuous use.
Preferably, except for the first wastewater treatment unit 2, a second filter screen is arranged at the upstream of the catalyst return outlet 208 of other subsequently connected wastewater treatment units 2, and the catalyst return outlet 208 is connected in parallel with the catalyst collection tank 6 and the water collection tank 7 of the previous catalyst recovery unit 3 through pipelines;
the second filter screen is used for preventing the catalyst of the wastewater treatment unit 2 from entering the catalyst collecting tank 6 of the previous catalyst recovery unit 3, so that the wastewater treatment unit 2 only uses the catalyst recovered by the previous catalyst recovery unit 3; the catalyst backflow outlet 208 is connected to the water collecting tank 7, and is used for introducing water in the water collecting tank 7 to perform backwashing on the second filter screen when the second filter screen is blocked and needs to be cleaned.
Optionally, the bottom outlet of the catalyst collecting tank 6 may also be connected to a catalyst post-treatment device through a pipeline to treat the catalyst which is used for many times and cannot be utilized, for example, the last catalyst collecting tank 6 may adopt the above design.
Optionally, a water quality on-line monitor is arranged in the water collecting tank 7 and is in communication connection with the control unit 5 for monitoring the wastewater treatment effect in real time.
Preferably, the top of the water collecting tank 7 is provided with a third filter screen and a bottom rotating shaft movably connected with the third filter screen; the catalyst collecting tank 6 and the side surface of the water collecting tank 7 are provided with heating devices, for example, the catalyst collecting tank 6, the water collecting tank 7 and the heating devices enclose a triangle, and the heating devices are respectively connected with the water collecting tank 7 and the catalyst collecting tank 6 through a first conveyor belt and a second conveyor belt; the third filter screen can rotate above the top of the water collecting tank 7 and the first conveyor belt by taking the rotating shaft at the bottom as a fulcrum, namely the third filter screen can cover the top of the water collecting tank 7 and is used for intercepting and recovering iron-containing oxide solids, the third filter screen rotates to overturn and dump the intercepted solids onto the first conveyor belt, and then the intercepted solids are input into a heating device for heating, so that FeO is converted into Fe 3 O 4 And the regenerated catalyst is transported to the catalyst collecting tank 6 by the second conveyor belt for the next wastewater treatment unit 2.
Preferably, the heating device is connected to an oxygen supply device, and the supply amount of oxygen can be controlled. The intercepted solid is conveyed to the heating device through the first conveying belt, the solid can be placed into a heating cup of the heating device through manual operation, after heating and cooling are completed, the regenerated catalyst is manually moved to the second conveying belt, and the process can also be completed through the mechanical arm.
Optionally, the wastewater treatment system may also be provided with only one heating device, and the wastewater treatment system is connected with the corresponding water collecting tank 7 through a plurality of first conveyor belts, connected with the corresponding catalyst collecting tank 6 through a plurality of second conveyor belts, and intensively regenerates the solids intercepted by the third filter screen of each catalyst recovery unit 3.
Optionally, the post-treatment unit 4 is provided with a plurality of third water inlets 401 and a third water outlet 402, each third water inlet 401 is connected to the corresponding water collecting tank 7 of the catalyst recovery unit 3 through a pipeline and a water pump, and wastewater is discharged into the post-treatment unit 4, post-treated, and discharged through the third water outlet 402. The water treatment process of the post-treatment unit 4 is preferably a membrane treatment, such as nanofiltration, ultrafiltration, reverse osmosis process.
Optionally, the control unit 5 is a control center of the wastewater treatment system, the control unit 5 includes a control computer and an alarm, and the control computer is in communication connection with each water pump of each wastewater treatment unit 2, so as to control water inlet, water outlet, catalyst backflow and oxidant backflow of the wastewater treatment units 2; the control computer is in communication connection with each motor, the rolling brush 306, the stirring device and the water quality on-line monitor of each catalyst recovery unit 3, so that the rotation of the magnetic recovery conveyor belt 301, the operation of the catalyst collecting tank 6 and the water quality of the water collecting tank 7 are controlled; the control computer is in communication connection with each water pump of the post-treatment unit 4 so as to control the water inlet and outlet of the post-treatment unit 4;
the alarm gives an alarm when the wastewater treatment system fails, runs abnormally or the wastewater treatment does not reach the standard, so as to draw the attention of operation and maintenance personnel.
The control unit 5 can adjust the flow of each water pump according to the wastewater treatment effect, so as to realize the automatic control of wastewater treatment.
The water pump of the present invention is preferably a jet pump.
The whole operation process is controlled by the control unit 5, the control computer analyzes and calculates the data of each water pump and the on-line monitoring instrument, and automatically issues instructions to each water pump, the catalyst agent pool 210 and the oxidant agent pool 211 to adjust the water flow and the dosing amount, so that the effective automatic operation of the whole system is realized. The display screen of the control computer can display the real-time running condition of the whole system for viewing.
Claims (10)
1. A recycling integrated magnetic catalytic oxidation wastewater treatment system is characterized by comprising a pretreatment unit, a plurality of wastewater treatment units, a plurality of catalyst recovery units, a post-treatment unit and a control unit, wherein the pretreatment unit is connected with the plurality of wastewater treatment units in parallel through pipelines, and each wastewater treatment unit is correspondingly connected with one catalyst recovery unit; the control unit is in communication connection with the pretreatment unit, the wastewater treatment units, the catalyst recovery units and the post-treatment unit;
the catalyst recovery unit comprises a magnetic recovery conveyor belt, a catalyst collecting tank and a water collecting tank, wherein the catalyst collecting tank is arranged on one side below the magnetic recovery conveyor belt, and the water collecting tank is arranged on the other side below the magnetic recovery conveyor belt;
the post-treatment unit is connected in parallel with the water collecting tanks of the catalyst recovery units through pipelines and is used for receiving the wastewater separated from the catalyst; the next-stage wastewater treatment unit is connected with the catalyst collecting tank of the first-stage catalyst recovery unit and is used for utilizing the catalyst used by the previous-stage wastewater treatment unit.
2. The wastewater treatment system of claim 1, wherein the wastewater treatment unit is cylindrical and is provided with a water distribution area, a wastewater treatment area, a reflux area and an overflow area from bottom to top; the bottom in water distribution district is equipped with the second water inlet, is equipped with the carrier layer board between water distribution district and the waste water treatment district, is equipped with the carrier between waste water treatment district and the backward flow district and separates the net, is equipped with the overflow weir between backward flow district and the overflow district, and the export of overflow weir is equipped with the second delivery port for the feed liquid after output wastewater treatment unit handles.
3. The wastewater treatment system according to claim 2, wherein a catalyst inlet and an oxidant inlet are respectively arranged on two sides of the water distribution zone, a catalyst return outlet and an oxidant return outlet are respectively arranged on two sides of the return zone, and an oxidant agent pool is arranged between the oxidant return outlet and the oxidant inlet;
a catalyst agent pool is arranged between the catalyst backflow outlet and the catalyst inlet of the first wastewater treatment unit.
4. The wastewater treatment system of claim 3, wherein the bottom of the water distribution zone comprises a water distribution pipe and a catalyst distribution pipe and an oxidant distribution pipe above the water distribution pipe, such that the influent water, the catalyst and the oxidant are uniformly dispersed and mixed;
the water distribution pipeline comprises a plurality of radial branch pipes and a central inlet, the radial branch pipes are in a radial shape, the second water inlet is connected with the central inlet, and a plurality of water distribution nozzles are uniformly arranged on each radial branch pipe;
the catalyst distribution pipeline is a first annular coil pipe, an inlet of the catalyst distribution pipeline is connected with a catalyst inlet, and a plurality of catalyst nozzles are uniformly arranged on the upper surface of the first annular coil pipe;
the oxidant distribution pipeline is a second annular coil pipe, an inlet of the oxidant distribution pipeline is connected with an oxidant inlet, and a plurality of oxidant nozzles are uniformly arranged on the upper surface of the second annular coil pipe.
5. The wastewater treatment system of claim 2, wherein the catalyst recovery unit comprises a triangular magnetic recovery conveyor belt, a water outlet spray head above the triangular magnetic recovery conveyor belt, a catalyst collecting tank below the triangular magnetic recovery conveyor belt, and a water collecting tank below the triangular magnetic recovery conveyor belt, wherein the water outlet spray head is connected with a second water outlet of a corresponding wastewater treatment unit;
the magnetic recovery conveyor belt is supported by a vertex rotating shaft, a short side rotating shaft and a long side rotating shaft at three points to form a triangle with a long side, a short side and a horizontal bottom edge, the water outlet spray head is positioned above the long side, and the lower surface of the long side is provided with a magnetic device; the catalyst collecting tank is arranged below the horizontal bottom edge and at one end close to the short-edge rotating shaft, and the collecting tank is arranged below the horizontal bottom edge and at one end close to the long-edge rotating shaft.
6. The wastewater treatment system of claim 5, wherein the horizontal bottom edge is provided with a rolling brush near the rotation shaft of the short edge, and the rolling brush is in contact with the lower surface of the horizontal bottom edge.
7. The wastewater treatment system of claim 5, wherein the catalyst collection tank is provided with a stirring device, and the bottom outlet is connected with the catalyst agent tank of the next wastewater treatment unit through a pipeline, and the catalyst return outlet of the next wastewater treatment unit is connected with the catalyst collection tank through a pipeline for introducing the return wastewater of the next wastewater treatment unit into the catalyst collection tank.
8. The wastewater treatment system of claim 5, wherein a third filter screen and a bottom rotating shaft movably connected with the third filter screen are arranged at the top of the water collecting tank; the side surfaces of the catalyst collecting tank and the water collecting tank are provided with heating devices, and the heating devices are respectively connected with the water collecting tank and the catalyst collecting tank through a first conveyor belt and a second conveyor belt; the third filter screen can rotate on the top of the water collecting tank and above the first conveyor belt by taking the rotating shaft at the bottom as a fulcrum;
the third filter screen can cover the top of the water collecting tank and is used for intercepting and recovering iron-containing oxide solids, the third filter screen rotates, the intercepted solids are overturned and poured on the first conveying belt, and then the solids are input into the heating device to be heated, so that FeO is converted into Fe 3 O 4 And then the regenerated catalyst is conveyed to a catalyst collecting tank by a second conveyor belt and used for the next wastewater treatment unit.
9. The wastewater treatment system according to claim 5, wherein the post-treatment unit is provided with a plurality of third water inlets and a third water outlet, and each third water inlet is connected with the water collecting tank of the corresponding catalyst recovery unit through a pipeline and a water pump.
10. The wastewater treatment system according to claim 5, wherein the magnetic device is a magnetic conveyor belt, the magnetic conveyor belt is supported by a vertex rotating shaft and a long-side rotating shaft and rotates under the driving of a vertex motor and a long-side motor, the upper surface of the magnetic conveyor belt moves close to the lower surface of the long side of the magnetic recovery conveyor belt to attract the catalyst to climb upwards, after the magnetic conveyor belt reaches the vertex rotating shaft, the magnetic conveyor belt is separated from the short side and loses magnetic attraction, and the catalyst falls into the catalyst collecting tank below from the short side to be recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847201.XA CN115028294B (en) | 2022-07-19 | 2022-07-19 | Recycling integrated magnetic catalytic oxidation wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847201.XA CN115028294B (en) | 2022-07-19 | 2022-07-19 | Recycling integrated magnetic catalytic oxidation wastewater treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115028294A true CN115028294A (en) | 2022-09-09 |
| CN115028294B CN115028294B (en) | 2024-02-20 |
Family
ID=83128681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210847201.XA Active CN115028294B (en) | 2022-07-19 | 2022-07-19 | Recycling integrated magnetic catalytic oxidation wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115028294B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884005A (en) * | 2016-06-29 | 2016-08-24 | 盐城工学院 | Novel Fenton fluidized bed and wastewater treatment method thereof |
| CN106277279A (en) * | 2016-09-22 | 2017-01-04 | 常州大学怀德学院 | A kind of wastewater treatment equipment being beneficial to magnetic nano-catalyst separation and recovery |
| CN205909656U (en) * | 2016-07-29 | 2017-01-25 | 宜兴市宜刚环保工程材料有限公司 | Honeycombed denitrification catalyst dry kiln |
| CN106430826A (en) * | 2016-10-14 | 2017-02-22 | 华南理工大学 | Efficient wastewater treatment device for papermaking process tobacco leaf regeneration and wastewater treatment method thereof |
| CN106694218A (en) * | 2017-03-21 | 2017-05-24 | 南京凯通粮食生化研究设计有限公司 | Magnetic catalyst continuous separation equipment |
| CN108585164A (en) * | 2018-03-23 | 2018-09-28 | 华夏碧水环保科技有限公司 | A kind of processing method of Fenton catalyst oxidation reactor and its highly difficult industrial wastewater |
| CN110841471A (en) * | 2019-10-29 | 2020-02-28 | 南京浩普环境科技有限公司 | Integrated multi-medium catalytic waste gas treatment device and use method thereof |
| CN210710890U (en) * | 2019-08-07 | 2020-06-09 | 东宸环保装备制造有限公司 | Stone cutting sewage iron powder magnetic separation device |
| CN111871341A (en) * | 2020-08-03 | 2020-11-03 | 扬州大学 | Continuous flow Fenton reactor capable of recycling magnetic catalyst |
| CN212595618U (en) * | 2020-06-05 | 2021-02-26 | 威海中远造船科技有限公司 | Novel catalytic oxidation reactor |
| CN112759204A (en) * | 2021-01-29 | 2021-05-07 | 安阳钢铁股份有限公司 | Coking sewage treatment process |
-
2022
- 2022-07-19 CN CN202210847201.XA patent/CN115028294B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884005A (en) * | 2016-06-29 | 2016-08-24 | 盐城工学院 | Novel Fenton fluidized bed and wastewater treatment method thereof |
| CN205909656U (en) * | 2016-07-29 | 2017-01-25 | 宜兴市宜刚环保工程材料有限公司 | Honeycombed denitrification catalyst dry kiln |
| CN106277279A (en) * | 2016-09-22 | 2017-01-04 | 常州大学怀德学院 | A kind of wastewater treatment equipment being beneficial to magnetic nano-catalyst separation and recovery |
| CN106430826A (en) * | 2016-10-14 | 2017-02-22 | 华南理工大学 | Efficient wastewater treatment device for papermaking process tobacco leaf regeneration and wastewater treatment method thereof |
| CN106694218A (en) * | 2017-03-21 | 2017-05-24 | 南京凯通粮食生化研究设计有限公司 | Magnetic catalyst continuous separation equipment |
| CN108585164A (en) * | 2018-03-23 | 2018-09-28 | 华夏碧水环保科技有限公司 | A kind of processing method of Fenton catalyst oxidation reactor and its highly difficult industrial wastewater |
| CN210710890U (en) * | 2019-08-07 | 2020-06-09 | 东宸环保装备制造有限公司 | Stone cutting sewage iron powder magnetic separation device |
| CN110841471A (en) * | 2019-10-29 | 2020-02-28 | 南京浩普环境科技有限公司 | Integrated multi-medium catalytic waste gas treatment device and use method thereof |
| CN212595618U (en) * | 2020-06-05 | 2021-02-26 | 威海中远造船科技有限公司 | Novel catalytic oxidation reactor |
| CN111871341A (en) * | 2020-08-03 | 2020-11-03 | 扬州大学 | Continuous flow Fenton reactor capable of recycling magnetic catalyst |
| CN112759204A (en) * | 2021-01-29 | 2021-05-07 | 安阳钢铁股份有限公司 | Coking sewage treatment process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115028294B (en) | 2024-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108862747A (en) | Wastewater treatment and solids recovery system | |
| CN107032473A (en) | It is a kind of to fluidize the system that state subregion iron powder handles waste water | |
| CN108467154A (en) | A kind of SBR waste water treatment process of soybean lecithin production | |
| CN105712583A (en) | Sewage purification and filtration device | |
| CN115028294B (en) | Recycling integrated magnetic catalytic oxidation wastewater treatment system | |
| CN102603091A (en) | Sewage treatment system | |
| CN108178455A (en) | A kind of sewage multi-stage processing equipment | |
| CN108892265B (en) | Domestic sewage multi-stage purification recovery device and purification method thereof | |
| CN207735010U (en) | Extensive hardly possible biochemical waste water activated carbon adsorption and saturation charcoal in-place regeneration system | |
| US20050167372A1 (en) | Systems for the removal of solids from fluids and methods of using the same | |
| CN206244611U (en) | A kind of sewage-treatment plant of precast concrete | |
| CN215355324U (en) | Low-carbon environment-friendly contaminated soil leaching remediation system | |
| CN213596069U (en) | Water treatment device combining ozone tail gas with ceramic membrane | |
| CN113880374A (en) | Unpowered anti-blocking multi-medium biofilter process | |
| CN208933128U (en) | A kind of sewage Processing automatically by sort device | |
| CN206521313U (en) | Continuous wash biofilter | |
| CN109607905A (en) | A kind of environment-friendly sewage processing unit | |
| CN220887123U (en) | Device for recycling PTA wastewater | |
| CN109264833A (en) | A kind of device making iron-carbon micro-electrolytic material automatic regeneration | |
| CN216687597U (en) | Waste water ozone catalytic oxidation tower and treatment device | |
| CN201962152U (en) | Sewage treatment system | |
| CN210394089U (en) | Rural sewage intelligent integrated treatment system | |
| JPH11347313A (en) | Water treatment utilizing capillarity and apparatus therefor | |
| CN214439107U (en) | Filter material unloading structure and filter material belt cleaning device for municipal sewage treatment | |
| KR20180013257A (en) | Apparatus of advanced wastewater treatment |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |