CN216141407U - Pretreatment device and treatment system for high-salinity wastewater of pickled vegetables - Google Patents
Pretreatment device and treatment system for high-salinity wastewater of pickled vegetables Download PDFInfo
- Publication number
- CN216141407U CN216141407U CN202121837423.0U CN202121837423U CN216141407U CN 216141407 U CN216141407 U CN 216141407U CN 202121837423 U CN202121837423 U CN 202121837423U CN 216141407 U CN216141407 U CN 216141407U
- Authority
- CN
- China
- Prior art keywords
- tank
- electrocatalytic oxidation
- communicated
- liquid inlet
- salinity wastewater
- 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.)
- Active
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 58
- 235000013311 vegetables Nutrition 0.000 title claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 67
- 230000003647 oxidation Effects 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 238000005188 flotation Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000005273 aeration Methods 0.000 claims description 28
- 239000003054 catalyst Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 14
- 238000005276 aerator Methods 0.000 claims description 12
- 235000021109 kimchi Nutrition 0.000 claims description 12
- 238000004065 wastewater treatment Methods 0.000 claims description 9
- 238000005189 flocculation Methods 0.000 claims description 8
- 230000016615 flocculation Effects 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 8
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 231100000572 poisoning Toxicity 0.000 abstract description 5
- 230000000607 poisoning effect Effects 0.000 abstract description 5
- 230000000813 microbial effect Effects 0.000 abstract description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Inorganic materials [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 3
- 239000011780 sodium chloride Substances 0.000 abstract description 2
- 235000021110 pickles Nutrition 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000543 intermediate Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000007800 oxidant agent Substances 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229920002401 polyacrylamide Polymers 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 229940037003 alum Drugs 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 238000001728 nano-filtration Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000015784 hyperosmotic salinity response Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a pretreatment device and a treatment system for high-salt wastewater of pickled vegetables, wherein the pretreatment device for the high-salt wastewater of pickled vegetables comprises: the liquid inlet of the adjusting tank is communicated with the liquid outlet of the grid tank, and a submersible pump is arranged in the adjusting tank; the air flotation tank is communicated with the adjusting tank through the submersible pump; and the liquid inlet of the electrocatalytic oxidation equipment is communicated with the liquid outlet of the air floatation tank. The technical scheme of the utility model aims to solve the technical problem that the high-sodium chloride-containing wastewater in the prior art is easy to cause microbial poisoning.
Description
Technical Field
The utility model relates to the technical field of high-salinity wastewater treatment, in particular to a pretreatment device and a treatment system for high-salinity wastewater of pickled vegetables.
Background
The pickle high-salt wastewater is different from industrial wastewater. Meanwhile, the high-salinity wastewater of the pickle also contains impurities such as pickle residues, macromolecular organic matters and the like. In the existing treatment process, the pickle high-salt wastewater treatment is carried out by adopting a biochemical treatment process combining anaerobic treatment and aerobic treatment, and in the biochemical treatment process, microorganisms with high salt tolerance need to be cultured; however, the existence regulation of microorganisms with high salt tolerance is harsh, and in the high-salt-content pickle wastewater, macromolecular organic matters are contained, so that the microorganism poisoning is easily caused, and the high-salt-content pickle wastewater cannot be treated.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a pretreatment device and a treatment system for high-salinity wastewater of pickled vegetables, and aims to solve the technical problem that high-salinity wastewater in the prior art is easy to cause microbial poisoning.
In order to achieve the above object, the present invention provides a pretreatment device for high-salinity wastewater of kimchi, comprising:
a grid pool is arranged in the water tank,
the liquid inlet of the adjusting tank is communicated with the liquid outlet of the grid tank, and a submersible pump is arranged in the adjusting tank;
the air flotation tank is communicated with the adjusting tank through the submersible pump; and
and the liquid inlet of the electrocatalytic oxidation equipment is communicated with the liquid outlet of the air floatation tank.
Optionally, the pretreatment apparatus further includes: and the liquid inlet of the flocculation sedimentation tank is communicated with the liquid outlet of the electrocatalytic oxidation equipment.
Optionally, the pretreatment apparatus further includes: the device comprises a first middle water tank, wherein a liquid inlet of the first middle water tank is communicated with a liquid outlet of the air floatation tank, and a liquid inlet of the first middle water tank is communicated with a liquid inlet of the electrocatalytic oxidation equipment.
Optionally, the pretreatment apparatus further includes: and the liquid inlet of the second middle water tank is communicated with the liquid outlet of the flocculation sedimentation tank.
Optionally, a first grating and a second grating which are sequentially arranged at intervals along the water flow direction are arranged in the grating tank; wherein the second grid has a grid width less than the grid width of the first grid.
Optionally, the electrocatalytic oxidation apparatus comprises: the liquid inlet of the electrocatalytic oxidation device is arranged on the shell, the liquid outlet of the electrocatalytic oxidation device is arranged on the shell, and the liquid inlet of the electrocatalytic oxidation device and the liquid outlet of the electrocatalytic oxidation device are arranged at intervals in the axial direction of the shell; the positive electrode assembly and the negative electrode assembly are arranged in the shell at intervals; and the aeration disc is inserted between the positive electrode assembly and the negative electrode assembly.
Optionally, the electrocatalytic oxidation apparatus further comprises: the aerator is arranged outside the shell; and the aeration conveying pipe extends from the outer side of the shell to the inner side of the shell in a sealing way, and two opposite ends of the aeration conveying pipe are respectively communicated with the aerator and the aeration disc.
Optionally, the aerator is an ozone generator.
Optionally, comprising: the electrocatalytic oxidation device further comprises a plurality of catalyst substrates, and catalyst layers are arranged on the catalyst substrates; the catalyst substrate is connected with the shell, and the catalyst substrate is arranged between the positive electrode assembly and the negative electrode assembly.
The utility model also provides a pickle high-salt wastewater treatment system which comprises the pickle high-salt wastewater pretreatment device.
The technical scheme of the utility model is that the grid pond is used for intercepting finely crushed vegetable leaves and other suspended matters in the high-salinity wastewater of pickled vegetables; then the high-salinity wastewater enters a neutralization regulating tank, on one hand, the pH of the high-salinity wastewater is regulated by adding sodium hydroxide (NaOH), and on the other hand, the water quantity and the water quality are homogenized; the high-salinity wastewater after homogenization and homogenization is pumped into an air floatation tank through a submersible pump, large-particle alum floc is formed by adding flocculating agent polyaluminum chloride (PAC) and coagulant aid Polyacrylamide (PAM) to react with suspended matters in the high-salinity wastewater in the air floatation tank, scum is formed by adsorption of generated micron-sized fine bubbles and floating of the alum floc attached to the wastewater to remove the generated micron-sized fine bubbles, and suspended matters in the high-salinity wastewater are further removed. The high-salinity wastewater of suspended matters removed by the air floatation tank enters an electrocatalytic oxidation device for further treatment. The electrocatalytic oxidation equipment adopts an advanced oxidation method to generate hydroxyl radical (HO) intermediates in high-salt wastewater, takes (HO) as a main oxidant to react with macromolecular organic matters, and can generate organic radicals or organic peroxide radicals to continue to react in the reaction, so that the purpose of completely or partially decomposing the organic matters is achieved, and the possibility of microbial poisoning in a subsequent biochemical treatment device is effectively reduced; meanwhile, in high-salinity wastewater, the ion concentration is higher, the conductivity is higher, the transfer rate of electrons is favorably improved, and the decomposition efficiency of organic matters 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 structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a pretreatment apparatus for high-salinity wastewater of kimchi in accordance with the present invention;
FIG. 2 is a schematic structural diagram of an electro-oxidation catalytic device of the pickle high-salinity wastewater pretreatment device.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the utility model provides a pretreatment device of pickle high-salinity wastewater, comprising:
the grid-like structure of the tank 100,
a liquid inlet of the adjusting tank 200 is communicated with a liquid outlet of the grid tank 100, and a submersible pump is arranged in the adjusting tank 200;
a floatation tank 300, wherein the floatation tank 300 is communicated with the regulating tank 200 through the submersible pump; and
and the liquid inlet 500g of the electrocatalytic oxidation device is communicated with the liquid outlet of the air floatation tank 300.
In the technical scheme of the utility model, the grating tank 100 is used for intercepting fine crushed vegetable leaves and other suspended matters in the high-salinity wastewater of pickled vegetables; then the high-salinity wastewater enters a neutralization regulating tank 200, on one hand, the pH of the high-salinity wastewater is regulated by adding sodium hydroxide (NaOH), and on the other hand, the water quantity and the water quality are homogenized; the high-salinity wastewater after homogenization and homogenization is pumped into the air flotation tank 300 through the submersible pump, large-particle alum floc is formed by adding flocculating agent polyaluminium chloride (PAC) and coagulant aid Polyacrylamide (PAM) to react with suspended matters in the high-salinity wastewater in the air flotation tank 300, scum is formed by adsorption of generated micron-sized fine bubbles and floating of the alum floc attached to the wastewater to remove the scum, and suspended matters in the high-salinity wastewater are further removed. The high-salinity wastewater with suspended matters removed by the floatation tank 300 enters the electrocatalytic oxidation device 500 for further treatment. The electrocatalytic oxidation device 500 adopts an advanced oxidation method to generate hydroxyl radical (HO) intermediates in the high-salt wastewater, and takes the HO as a main oxidant to react with the macromolecular organic matters which are difficult to degrade, and organic radicals can be generated or organic peroxide radicals can be generated in the reaction to continue the reaction, so that the purpose of completely decomposing or partially decomposing the organic matters is achieved, and the possibility of microbial poisoning in a subsequent biochemical treatment device is effectively reduced; meanwhile, in high-salinity wastewater, the ion concentration is higher, the conductivity is higher, the transfer rate of electrons is favorably improved, and the decomposition efficiency of organic matters is high.
As an optional implementation manner of the foregoing embodiment, the pretreatment apparatus further includes: a flocculation sedimentation tank 600, the liquid inlet of the flocculation sedimentation tank 600 is communicated with the liquid outlet of the electrocatalytic oxidation equipment for 500 hours. In the flocculation sedimentation tank 600, organic pollutants and suspended matters in the sewage are further removed by adding a flocculating agent (PAC) and a coagulant aid (PAM), and higher Total Phosphorus (TP) in the high-salinity wastewater can be removed. After the pretreatment device, solid suspended matters, organic matters and Total Phosphorus (TP) in the high-salinity wastewater of the pickled vegetables are removed, so that the B/C value of the high-salinity wastewater is improved by the pretreatment device, and the efficiency of subsequent biochemical treatment is ensured.
As an optional implementation manner of the foregoing embodiment, the pretreatment apparatus further includes: the liquid inlet of the first middle water tank 400 is communicated with the liquid outlet of the air floatation tank 300, and the liquid inlet of the first middle water tank 400 is communicated with the liquid inlet 500g of the electrocatalytic oxidation equipment. The first intermediate water tank 400 is mainly used for temporarily storing the effluent in the floatation tank 300, and part of solid particles can settle in the first intermediate water tank 400, so that the solid particles entering the electrocatalytic oxidation equipment 500 are reduced; on the other hand, the speed of the flotation tank 300 is generally higher than that of the electrocatalytic oxidation device 500, the effluent of the flotation tank 300 is temporarily stored in the first intermediate water tank 400, and the difference between the treatment device efficiencies of the flotation tank 300 and the electrocatalytic oxidation device 500 can be matched, and generally, the number and the volume of the first intermediate water tank 400 are set according to the difference between the flotation tank 300 and the electrocatalytic oxidation device 500.
As an optional implementation manner of the foregoing embodiment, the pretreatment apparatus further includes: a second intermediate water tank 700, wherein the liquid inlet of the second intermediate water tank 700 is communicated with the liquid outlet of the flocculation sedimentation tank 600. The second intermediate water tank 700 is used for temporarily storing the high-salinity wastewater treated by the pretreatment device as a water intake tank of the subsequent treatment device.
As an optional implementation manner of the above embodiment, a first grid and a second grid are arranged in the grid pool 100 at intervals in sequence along the water flow direction; wherein the second grid has a grid width less than the grid width of the first grid. In the process of water flow, the first grating intercepts large solid vegetable slag, and the second grating intercepts small solid vegetable slag, so that the treatment efficiency of the grating pool 100 is improved.
As an alternative to the above example, shown in fig. 2, the electrocatalytic oxidation apparatus 500 comprises: the device comprises a shell 500a, a liquid inlet 500g of the electrocatalytic oxidation device is arranged on the shell 500a, a liquid outlet 500h of the electrocatalytic oxidation device is arranged on the shell 500a, and the liquid inlet 500g of the electrocatalytic oxidation device and the liquid outlet 500h of the electrocatalytic oxidation device are arranged at intervals in the axial direction of the shell 500 a; that is, the liquid inlet 500g and the liquid outlet of the electrocatalytic oxidation device are disposed at the two axial ends of the housing 500a, so that the high-salinity wastewater can be sufficiently subjected to electrocatalytic oxidation reaction in the electrocatalytic oxidation device 500, so as to degrade macromolecular organic matters. The electrocatalytic oxidation apparatus 500 includes a positive electrode assembly 500b, a negative electrode assembly 500c, and an aeration tray 500 d; the positive electrode assembly 500b and the negative electrode assembly 500c are arranged in the shell 500a at intervals, so that an electrocatalytic oxidation chamber is formed between the positive electrode assembly 500b and the negative electrode assembly 500 c; and an aeration plate 500d, wherein the aeration plate 500d is inserted between the positive electrode assembly 500b and the negative electrode assembly 500c, that is, the aeration plate 500d is disposed in the electrocatalytic oxidation chamber, and the aeration plate 500d can adjust the content of the oxidant in the electrocatalytic oxidation device 500, for example, oxygen or ozone can be injected into the electrocatalytic oxidation device 500 through the aeration plate 500d, so as to improve the oxidation capability, and form local stirring in the electrocatalytic oxidation chamber, so as to improve the ion migration speed in the high-salinity wastewater.
In a specific implementation, the present invention includes a plurality of positive electrode assemblies 500b and negative electrode assemblies 500 c. The positive electrode assembly 500b and the negative electrode assembly 500c are sequentially spaced in the axial direction of the case 500a, and are formed as follows: the combination of the positive electrode assembly 500b, the negative electrode assembly 500c, the positive electrode assembly 500b and the negative electrode assembly 500c, so that the electrocatalytic oxidation device 500 is provided with a plurality of electrocatalytic oxidation chambers, and the technical defect that the degradation capability of organic matters at the middle position of the electrocatalytic oxidation device 500 is weak in the prior art is overcome. Meanwhile, in order to improve the capacity of the electrocatalytic oxidation, the aeration discs 500d are arranged in each electrocatalytic oxidation chamber, so that the concentration of the oxidant in the electrocatalytic oxidation chamber is kept in a high-concentration state, the treatment capacity of the electrocatalytic oxidation equipment 500 is improved, the number of the first middle water tanks 400 can be reduced, and the floor area of the whole set of equipment is reduced.
In a specific implementation, the positive electrode assembly 500b and the negative electrode assembly 500c may be made of graphite and are respectively connected to the positive electrode and the negative electrode of the electrode plate 500 f. The electrode plate is electrically connected with a power supply, which can be a direct current power supply or an alternating current power supply. The positive electrode assembly 500b may also have a plate-shaped structure, which is a net structure woven by noble metal wires selected from at least one of ruthenium wires, iridium wires, and platinum wires; the negative electrode assembly 500c may also be a plate-like structure made of graphite.
As an alternative implementation of the above embodiment, the electrocatalytic oxidation apparatus 500 further comprises: an aerator 500j, the aerator 500j being disposed outside the housing 500 a; and an aeration duct 500i, the aeration duct 500i hermetically extending from the outside of the housing 500a to the inside of the housing 500a, and opposite ends of the aeration duct 500i respectively communicating with the aerator 500j and the aeration tray 500 d. The installation through hole of the aeration delivery pipe 500i is preset on the housing 500a, and after the aeration delivery pipe 500i is installed in place, the housing 500a and the aeration delivery pipe 500i are sealed. Preferably, the aerator 500j is arranged on one side of the housing 500a close to the liquid inlet, the aeration delivery pipe 500i extends from one side of the liquid inlet to one side of the liquid outlet, at this time, the air volume of the aeration disc 500d close to the liquid inlet is greater than that of the aeration disc 500d close to the liquid outlet, and the organic matter degradation volume of the high-salinity wastewater is sequentially reduced in the direction close to the liquid inlet to the liquid outlet, that is, the electrocatalytic oxidation reaction strength of the high-salinity wastewater after entering the housing 500a is higher than that of the water just going to be discharged from the housing 500 a; in this case, the electrocatalytic oxidation apparatus 500 may perform the treatment continuously.
As an alternative to the above embodiment, the aerator 500j is an ozone generator. The aerator 500j of the present invention is an ozone generator, that is, in the preferred embodiment of the present invention, the electrocatalytic oxidation apparatus 500 employs ozone electrocatalytic oxidation advanced oxidation reaction.
As an alternative implementation of the above embodiment, the method includes: the electrocatalytic oxidation apparatus 500 further comprises a plurality of catalyst substrates 500e, each of the plurality of catalyst substrates 500e having a catalyst layer disposed thereon; the plurality of catalyst substrates 500e are connected to the case 500a, and the plurality of catalyst substrates 500e are disposed between the positive electrode assembly 500b and the negative electrode assembly 500 c. An electrocatalytic oxidation chamber is formed between every two adjacent positive electrode assemblies 500b and the negative electrode assemblies 500c, an aeration disc 500d is inserted into the electrocatalytic oxidation chamber, and catalyst substrates 500e are arranged on two sides of the aeration disc 500 d; that is, two catalyst substrates 500e are provided between the positive electrode assembly 500b and the negative electrode assembly 500c adjacent to each other. The catalyst is polarized and charged under the action of an external electric field to form a particle electrode, the catalytic action of the loaded active metal component is utilized to convert dissolved oxygen in water into a strong oxidant hydroxyl radical (. OH), and organic matters which are difficult to degrade in water are decomposed by the oxidation of the. OH to convert the organic matters into CO2And H2O。
The utility model also provides a pickle high-salt wastewater treatment system, which comprises the pickle high-salt wastewater pretreatment device, the specific structure of the pickle high-salt wastewater pretreatment device refers to the embodiment, and the pickle high-salt wastewater treatment system adopts all the technical schemes of all the embodiments, so that the pickle high-salt wastewater treatment system at least has all the beneficial effects brought by the technical schemes of the embodiment, and the details are not repeated. The pickle high-salinity wastewater treatment system also comprises a nanofiltration device, a biochemical treatment device and a salt recovery device. The method comprises the following steps that waste water to be treated obtained in the pickled vegetable high-salt waste water treatment enters a nanofiltration device, and water produced by the nanofiltration device enters a salt recovery device to obtain sodium chloride; concentrated water of the nanofiltration device enters a biochemical treatment device, is discharged after reaching the standard after biochemical treatment or is returned to the regulating tank 200.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A pretreatment device for high-salinity wastewater of pickled vegetables is characterized by comprising:
a grid pool is arranged in the water tank,
the liquid inlet of the adjusting tank is communicated with the liquid outlet of the grid tank, and a submersible pump is arranged in the adjusting tank;
the air flotation tank is communicated with the adjusting tank through the submersible pump; and
the liquid inlet of the electrocatalytic oxidation device is communicated with the liquid outlet of the air floatation tank, the electrocatalytic oxidation device comprises a positive electrode assembly, a negative electrode assembly and an aeration disc, and the aeration disc is inserted between the positive electrode assembly and the negative electrode assembly.
2. The pretreatment apparatus for kimchi high-salinity wastewater of claim 1, further comprising:
and the liquid inlet of the flocculation sedimentation tank is communicated with the liquid outlet of the electrocatalytic oxidation equipment.
3. The pretreatment apparatus for kimchi high-salinity wastewater according to claim 2, further comprising:
the device comprises a first middle water tank, wherein a liquid inlet of the first middle water tank is communicated with a liquid outlet of the air floatation tank, and a liquid inlet of the first middle water tank is communicated with a liquid inlet of the electrocatalytic oxidation equipment.
4. The pretreatment apparatus for kimchi high-salinity wastewater according to claim 2, further comprising:
and the liquid inlet of the second middle water tank is communicated with the liquid outlet of the flocculation sedimentation tank.
5. The pretreatment device of kimchi high-salinity wastewater according to claim 1, wherein a first grating and a second grating are provided in the grating tank in sequence at intervals along a water flow direction;
wherein the second grid has a grid width less than the grid width of the first grid.
6. The pretreatment apparatus for kimchi high-salinity wastewater according to claim 1, wherein the electrocatalytic oxidation device comprises:
the liquid inlet of the electrocatalytic oxidation device is arranged on the shell, the liquid outlet of the electrocatalytic oxidation device is arranged on the shell, and the liquid inlet of the electrocatalytic oxidation device and the liquid outlet of the electrocatalytic oxidation device are arranged at intervals in the axial direction of the shell;
the positive electrode assembly and the negative electrode assembly are arranged in the shell at intervals.
7. The pretreatment apparatus for kimchi high-salinity wastewater according to claim 6, wherein the electrocatalytic oxidation device further comprises:
the aerator is arranged outside the shell; and
and the aeration conveying pipe extends from the outer side of the shell to the inner side of the shell in a sealing way, and two opposite ends of the aeration conveying pipe are respectively communicated with the aerator and the aeration disc.
8. The pretreatment apparatus for kimchi high-salinity wastewater according to claim 7, wherein the aerator is an ozone generator.
9. The pretreatment device of kimchi high-salinity wastewater according to claim 6, comprising: the electrocatalytic oxidation device further comprises a plurality of catalyst substrates, and catalyst layers are arranged on the catalyst substrates;
the catalyst substrate is connected with the shell, and the catalyst substrate is arranged between the positive electrode assembly and the negative electrode assembly.
10. A kimchi high-salt wastewater treatment system comprising the kimchi high-salt wastewater pretreatment apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121837423.0U CN216141407U (en) | 2021-08-06 | 2021-08-06 | Pretreatment device and treatment system for high-salinity wastewater of pickled vegetables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121837423.0U CN216141407U (en) | 2021-08-06 | 2021-08-06 | Pretreatment device and treatment system for high-salinity wastewater of pickled vegetables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216141407U true CN216141407U (en) | 2022-03-29 |
Family
ID=80804577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121837423.0U Active CN216141407U (en) | 2021-08-06 | 2021-08-06 | Pretreatment device and treatment system for high-salinity wastewater of pickled vegetables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216141407U (en) |
-
2021
- 2021-08-06 CN CN202121837423.0U patent/CN216141407U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013156002A1 (en) | Nano catalyst electrolysis flocculation air flotation device | |
| CN107698037B (en) | Method for deeply treating reverse osmosis concentrated water of landfill leachate by three-dimensional electrochemical coupling three-dimensional electrobiology | |
| US3635764A (en) | Combined wastewater treatment and power generation | |
| CN102775023A (en) | Treatment process of industrial wastewater of gasoline antiknocks | |
| CN105384222A (en) | Waste water electric flocculation treatment device | |
| WO2012039464A1 (en) | Microorganism fuel cell system, method for generating electricity, and method for processing organic substances | |
| KR101206527B1 (en) | Electrolysis apparatus for nitrate nitrogen or ammonia nitrogen or phosphorus comprised in waste water or polluted water | |
| CN107285435A (en) | Double electrolysis remove the method and apparatus of the phosphorus in organophosphorus pesticide production waste water | |
| CN106698852A (en) | Brassica juncea pickling waste water treatment device and method | |
| CN113697966A (en) | Treatment system and treatment method for mariculture wastewater | |
| CN216141407U (en) | Pretreatment device and treatment system for high-salinity wastewater of pickled vegetables | |
| KR20130029530A (en) | Energy self-sufficient advanced wastewater treatment system by combination of microbial fuel cells and microbial electrolysis cells | |
| CN113754138A (en) | Method for treating antibiotic-containing wastewater by electro-catalytic induced electric Fenton-membrane integration | |
| JP2009039705A (en) | Air cell type waste water treatment apparatus | |
| CN216711841U (en) | Mariculture effluent treatment plant | |
| CN207210198U (en) | Multidimensional is electrolysed MBR sewage disposal devices | |
| CN210855619U (en) | Contain salt organic waste water electrocatalytic oxidation coupling preprocessing device | |
| CN115028297A (en) | Sewage treatment system and method | |
| CN114634226A (en) | Integrated ozone film aeration coupling reinforced iron-carbon micro-electrolysis electrochemical device | |
| JP7247713B2 (en) | Biological treatment equipment for organic wastewater | |
| JP2008264659A (en) | Waste water treatment device | |
| CN113860645A (en) | Method for treating high-concentration degradation-resistant organic wastewater | |
| KR101920428B1 (en) | Method for wastewater treatment that simultaneous removal of organic matter and nitrogen in wastewater using microbial fuel cell | |
| JP4237582B2 (en) | Surplus sludge reduction device and method | |
| CN112390428A (en) | Landfill leachate MBR effluent treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230718 Address after: 610000 No. 121, floor 1, unit 2, building 10, Longzhao community, Wuhou District, Chengdu, Sichuan Patentee after: Sichuan Zhengweihe Environmental Protection Engineering Co.,Ltd. Address before: 610000 No. 41-1, Chuqiao middle street, Wuhou District, Chengdu, Sichuan Patentee before: Sichuan jiashengyu Environmental Protection Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 No. 121, floor 1, unit 2, building 10, Longzhao community, Wuhou District, Chengdu, Sichuan Patentee after: Sichuan Zhengweihe Environmental Protection Technology Co.,Ltd. Address before: 610000 No. 121, floor 1, unit 2, building 10, Longzhao community, Wuhou District, Chengdu, Sichuan Patentee before: Sichuan Zhengweihe Environmental Protection Engineering Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |