CN112723619A - High-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology - Google Patents
High-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology Download PDFInfo
- Publication number
- CN112723619A CN112723619A CN202011532369.9A CN202011532369A CN112723619A CN 112723619 A CN112723619 A CN 112723619A CN 202011532369 A CN202011532369 A CN 202011532369A CN 112723619 A CN112723619 A CN 112723619A
- Authority
- CN
- China
- Prior art keywords
- sewage
- treatment
- industrial sewage
- membrane filtration
- sedimentation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
-
- 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
- C02F2303/02—Odour removal or prevention of malodour
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a high-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technologies, which comprises sedimentation coagulation treatment, electrochemical electrolysis treatment, membrane filtration separation treatment and discharge, wherein the sedimentation coagulation treatment process comprises simple filtration of industrial sewage entering a sedimentation coagulation tank, sedimentation coagulation and filtration separation treatment after the sedimentation coagulation treatment, the electrochemical electrolysis treatment process is a process of converting pollutants which are difficult to degrade in the industrial sewage into pollutants which are easy to degrade, and the membrane filtration separation treatment process is a process of further separating the pollutants in the sewage after the electrochemical electrolysis treatment by utilizing the membrane separation technology. Still the pertinence has set up deodorizing device, has realized the high-efficient processing of industrial sewage.
Description
Technical Field
The invention belongs to the technical field of industrial sewage treatment, and particularly relates to a high-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technologies, which is mainly used for high-efficiency treatment of industrial sewage.
Background
Along with the development of economy and the attention of people to natural environment, the problem of water pollution is more and more prominent and more emphasized, the sewage treatment is a process for purifying sewage to meet the requirement of discharging the sewage into a certain water body or reusing the sewage, and the treatment of industrial wastewater is a hot problem which is urgently needed to be solved.
The conventional wastewater treatment methods in the prior art comprise mechanical treatment, physical methods, chemical methods and biological methods, but with the improvement of living standard and the continuous development of industrialization degree of people, the components of domestic sewage and industrial sewage are more and more complex, the types of organic matters possibly existing in the wastewater are more and more, the difficulty of the wastewater treatment work is increased, and the common organic pollutants in the wastewater mainly comprise polycyclic aromatic hydrocarbons, nitrogen-containing organic compounds, halogenated hydrocarbons, heavy metal pollutants which cannot be degraded and other miscellaneous organic compounds, so that the conventional wastewater treatment mode is difficult to meet the performance and effect requirements at present.
The electrochemical water treatment is an environment-friendly new technology developed on the basis of an electrochemical electrolysis principle and polar water molecules, and is a clean circulating cooling water treatment technology.
The membrane separation technology is a technology for realizing selective separation when a mixture of molecules with different particle diameters passes through a semipermeable membrane, the semipermeable membrane is also called a separation membrane or a filter membrane, small holes are distributed on the membrane wall, and the membrane is a material with a selective separation function.
The existing industrial sewage treatment by utilizing the electrochemical water treatment or membrane separation water treatment technology has the following problems: 1. the unreasonable arrangement of electrode plates in the electrolytic cell causes low conductivity and weak electrolytic effect, and finally causes poor decontamination efficiency; 2. the electrochemical technology is independently adopted for water treatment or the membrane separation technology is independently adopted for water treatment, so that the decontamination effect is poor; 3. industrial wastewater often contains a large amount of organic pollutants such as sulfur, nitrogen and the like, and after decomposition treatment, malodorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like are generated and escaped into the atmosphere, so that malodorous pollution is caused.
Disclosure of Invention
The invention aims to: aiming at the technical problems existing in the prior art of utilizing electrochemical water or membrane separation water treatment technology to treat industrial sewage, the invention provides a high-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology, which skillfully combines electrochemical electrolysis treatment technology and membrane filtration separation technology together to realize high-efficiency treatment of industrial sewage.
The technical scheme adopted by the invention is as follows: a high-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technologies comprises a sedimentation coagulation treatment process, an electrochemical electrolysis treatment process, a membrane filtration separation treatment process and a discharge process, wherein the sedimentation coagulation treatment process comprises simple filtration of industrial sewage entering a sedimentation coagulation tank, sedimentation coagulation and filtration separation treatment after sedimentation coagulation treatment, the electrochemical electrolysis treatment process is a process of converting pollutants which are difficult to degrade in the industrial sewage into pollutants which are easy to degrade, and the membrane filtration separation treatment process is a process of further separating the pollutants in the sewage after the electrochemical electrolysis treatment by utilizing the membrane separation technology.
Further, the settlement coagulation treatment process is carried out in a settlement coagulation pond, the sewage entry below, the sewage top of settling coagulation pond are provided with the filter screen that has an slope, the filter screen is fixed at the lateral wall of settling coagulation pond, the filter screen realizes carrying out simple filtration to industrial sewage, there is a coagulant interpolation mouth the top of settling coagulation pond for to adding the coagulant in the settling coagulation pond, the lower end of filter screen slope is provided with a pollutant discharge port, the bottom of settling coagulation pond is provided with the sewage export, and the sewage exit is provided with the filter screen, and the sewage after settling coagulation is discharged from the sewage export and is got into electrochemical electrolytic treatment process on next step after filtering.
Furthermore, the electrochemical electrolysis treatment process is provided with an electrolytic cell, a direct current power supply and electrode plates, the electrode plates are provided with a plurality of groups, each group of electrode plates consists of an anode plate, a cathode plate and an aeration device for providing exogenous oxygen for the cathode, the electrode plates are arranged in a wave shape, a plurality of electrode plates form an electrolysis mechanism in the electrolytic cell, each group of electrode plates are sequentially arranged in an inner cavity of the electrolytic cell, the direct current power supply is communicated with the electrolysis mechanism, and the anode plates consist of aluminum plates or iron plates.
The electrolytic cell is characterized in that a sewage inlet pipe and a sewage outlet pipe are respectively arranged at the left end and the right end of the side wall of the electrolytic cell, a filter screen is arranged on the sewage outlet pipe, an inlet pipe regulating valve is arranged on the inlet pipe, an outlet pipe regulating valve is arranged on the outlet pipe, a sludge discharge pipe is arranged at the bottom of the electrolytic cell, and the inlet pipe, the outlet pipe and the sludge discharge pipe are all communicated with the reaction tank.
Furthermore, the top of the electrolytic cell is provided with a deodorizing device in the electrochemical electrolysis process, the deodorizing device is used for containing a large amount of organic pollutants such as sulfur, nitrogen and the like in industrial wastewater, and generating odorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like after being subjected to electrolytic decomposition treatment and causing odorous pollution to the environment if escaping into the atmosphere, the top of the electrolytic cell is provided with an odor outlet, the deodorizing device comprises a buffer zone, an induced draft fan, an absorption reaction chamber and a power supply control system, the odor generated in the electrolytic cell enters the buffer zone through the odor outlet, the odor accumulated in the buffer zone is introduced to the bottom of the absorption reaction chamber under the action of the induced draft fan, a packing layer for absorbing the odor is filled in the absorption reaction chamber, and the odor moves upwards from the bottom of the absorption reaction chamber and fully contacts with the packing layer to achieve the deodorizing effect, the top of the absorption reaction chamber is provided with a discharge port, and the gas treated by the deodorization device is discharged through the discharge port.
Furthermore, the membrane filtration separation treatment process adopts an ultrafiltration membrane filter to further filter and separate pollutants in industrial sewage through an ultrafiltration membrane, residual pollutants in water are removed by adopting a disc type reverse osmosis membrane separation technology, the device of the membrane filtration separation treatment process comprises an ultrafiltration membrane filter cylinder and a reverse osmosis filter cylinder, the ultrafiltration membrane filter is arranged in the ultrafiltration membrane filter cylinder, the ultrafiltration membrane filter is fixed on the side wall of the ultrafiltration membrane filter cylinder, the upper part of the ultrafiltration membrane filter cylinder is provided with an upper pipeline, the upper pipeline is connected with a sewage outlet pipe in the electrochemical electrolysis process, the lower part of the ultrafiltration membrane filter cylinder is provided with a lower pipeline, the lower pipeline is connected with the reverse osmosis filter cylinder, the sewage after the electrochemical electrolysis treatment is transmitted into the ultrafiltration membrane filter cylinder and is transmitted into the ultrafiltration membrane filter cylinder of the membrane separation treatment device through the upper pipeline, and (3) carrying out ultrafiltration membrane filtration on the industrial sewage, conveying the industrial sewage into the reverse osmosis filter cylinder through a lower pipeline arranged at the lower part of the ultrafiltration membrane filter cylinder, and carrying out reverse osmosis filtration.
The discharge process is the final discharge process of the industrial sewage after simple filtration, sedimentation coagulation, secondary filtration, electrochemical electrolysis and membrane filtration separation treatment.
An efficient industrial sewage treatment method based on electrochemistry and membrane filtration technology comprises the following specific steps:
1) industrial sewage enters the sedimentation coagulation tank through a sewage inlet of the sedimentation coagulation tank and a filter screen in the sedimentation coagulation tank, and the industrial sewage after sedimentation coagulation treatment is discharged through a sewage outlet at the bottom of the sedimentation coagulation tank;
2) the industrial sewage after the sedimentation coagulation treatment enters an electrolytic cell in an electrochemical electrolysis process through a sewage inlet pipe of the electrolytic cell, a direct-current power supply is started, the electrochemical electrolysis treatment is carried out on the industrial sewage, if the industrial sewage is industrial production wastewater containing a large amount of organic pollutants such as sulfur, nitrogen and the like, malodorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like generated after the decomposition treatment in the electrolytic cell enter a deodorizing device through an odor outlet at the top of the electrolytic cell for deodorization treatment and then are discharged;
3) the industrial sewage treated by the electrochemical electrolysis process is discharged after being filtered by a sewage outlet pipe arranged at the right end of the side wall of the electrolytic cell, the industrial sewage discharged by a sewage outlet pipe of the electrolytic cell is conveyed to the process of membrane filtration and separation treatment by an upper pipeline arranged in the process of membrane filtration and separation treatment, the industrial sewage enters an ultrafiltration membrane filter cartridge for ultrafiltration membrane filtration by an upper pipeline, and is conveyed into a reverse osmosis filter cartridge for reverse osmosis filtration by a lower pipeline arranged at the lower part of the ultrafiltration membrane filter cartridge;
4) the industrial sewage treated by the simple filtration, sedimentation coagulation, secondary filtration, electrochemical electrolysis and membrane filtration separation steps is finally discharged in the discharge process, so that the whole process of treating the industrial sewage by using the method is completed.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a high-efficiency industrial sewage treatment method combining an electrochemical electrolysis treatment technology and a membrane filtration separation technology, wherein secondary filtration is carried out in a sedimentation coagulation treatment process, in the electrochemical electrolysis treatment process, in order to solve the problems of low conductivity, weak electrolysis effect and poor decontamination efficiency caused by unreasonable arrangement of an electrode plate, the electrode plate is arranged in a wave shape, the contact area of industrial sewage and the electrode plate in an electrolytic cell is increased, the electrolysis effect and the decontamination efficiency are enhanced, and the problem that the decomposition of the industrial sewage containing a large amount of organic pollutants such as sulfur, nitrogen and the like can generate odorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like is solved;
(2) in most of the existing industrial sewage treatment methods, electrochemical electrolysis treatment or membrane separation treatment is mostly adopted, and the invention skillfully combines the electrochemical electrolysis treatment technology and the membrane filtration separation technology together, thereby realizing the high-efficiency treatment of the industrial sewage.
Drawings
FIG. 1 is a schematic view of a flow structure of a high-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technologies;
FIG. 2 is a schematic view showing the construction of a deodorizing apparatus for use in a high-efficiency industrial wastewater treatment method based on electrochemical and membrane filtration technologies according to the present invention;
labeled as: 1-a sedimentation coagulation tank, 11-a sewage inlet, 12-a pollutant discharge port, 13-a filter screen, 14-a coagulant addition port, 15-a sewage outlet, 2-an electrolytic tank, 21-a sewage inlet pipe, 22-a sewage outlet pipe, 23-a sludge discharge pipe, 24-an anode plate, 25-a cathode plate, 26-an aeration device, 27-an odor discharge port, 3-a deodorization device, 31-a buffer zone, 32-an induced draft fan, 33-an absorption reaction chamber, 34-a discharge port, 35-a packing layer, 4-a membrane filtration separation treatment process, 41-an upper pipeline, 42-a lower pipeline, 43-an ultrafiltration membrane filter cartridge, 44-a reverse osmosis filter cartridge and 5-a discharge process.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention, i.e., the described embodiments are merely a subset of the embodiments of the invention and not all embodiments.
As shown in fig. 1-2, a high-efficiency industrial sewage treatment method based on electrochemical and membrane filtration technologies includes a sedimentation coagulation treatment process, an electrochemical electrolysis treatment process, a membrane filtration separation treatment process and a discharge process, wherein the sedimentation coagulation treatment process includes simple filtration of industrial sewage entering a sedimentation coagulation tank, sedimentation coagulation and filtration separation treatment after sedimentation coagulation treatment, the electrochemical electrolysis treatment process is a process of converting nondegradable pollutants in industrial sewage into easily degradable pollutants by electrolysis treatment, and the membrane filtration separation treatment process is a process of further separating pollutants in sewage after electrochemical electrolysis treatment by membrane separation technologies.
The sedimentation coagulation treatment process is provided with sedimentation coagulation tank 1, the top of sedimentation coagulation tank 1 is provided with sewage entry 11, the below of sewage entry 11 is provided with the filter screen 13 of slope, filter screen 13 is fixed at sedimentation coagulation tank 11's lateral wall, filter screen 11 realizes carrying out simple filtration to industrial sewage, there is a coagulant interpolation mouth 14 the top of sedimentation coagulation tank 1, be used for adding the coagulant to sedimentation coagulation tank, the lower end of filter screen 11 slope is provided with a pollutant discharge port 12, sedimentation coagulation tank 1's bottom is provided with sewage outlet 15, sewage outlet 15 department is provided with the filter screen, discharge from sewage outlet 15 after filtering the sewage after the sedimentation coagulation and enter electrochemical electrolytic treatment process on next step.
The electrochemical electrolysis treatment process is provided with an electrolytic cell 2, a direct current power supply and electrode plates, the electrode plates are provided with a plurality of groups, each group of electrode plates consists of an anode plate 24, a cathode plate 25 and an aeration device 26 for providing exogenous oxygen for the cathode, the electrode plates are arranged in a wave shape, a plurality of electrode plates form an electrolysis mechanism in the electrolytic cell, each group of electrode plates are sequentially arranged in an inner cavity of the electrolytic cell 2, the direct current power supply is communicated with the electrolysis mechanism, and the anode plates consist of aluminum plates or iron plates. The left and right ends of the side wall of the electrolytic cell 2 are respectively provided with a sewage inlet pipe 21 and a sewage outlet pipe 22, the sewage outlet pipe 22 is provided with a filter screen, the sewage inlet pipe 21 is provided with an inlet pipe regulating valve, the sewage outlet pipe 22 is provided with an outlet pipe regulating valve, the bottom of the electrolytic cell 2 is provided with a sludge discharge pipe 23, and the sewage inlet pipe 21, the sewage outlet pipe 22 and the sludge discharge pipe 23 are all communicated with the electrolytic cell 2.
The top of an electrolytic cell 2 is provided with a deodorizing device 3 in the electrochemical electrolysis process, the deodorizing device 3 is arranged to be used for ensuring that industrial production wastewater often contains a large amount of organic pollutants such as sulfur, nitrogen and the like, and if odorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like are generated after electrolytic decomposition treatment and escape into the atmosphere, odorous polluted environment is caused, the top of the electrolytic cell 2 is provided with an odor outlet 27, the deodorizing device 3 is provided with a buffer zone 31, an induced draft fan 32, an absorption reaction chamber 33 and a power supply control system, the odor generated in the electrolytic cell 2 enters the buffer zone 31 through the odor outlet 27, the odor accumulated in the buffer zone is introduced to the bottom of the absorption reaction chamber 33 under the action of the induced draft fan 32, a filler layer 35 filled with absorbing odor is arranged in the absorption reaction chamber 33, the odor moves upwards from the bottom of the absorption reaction chamber 33 and is fully contacted with the filler, the top of the absorption reaction chamber 33 is provided with an exhaust port 34 to achieve the deodorizing effect, and the gas treated by the deodorizing means 3 is exhausted through the exhaust port 34.
The membrane filtration separation treatment process 4 adopts an ultrafiltration membrane filter to further filter and separate pollutants in the industrial sewage through an ultrafiltration membrane, the residual pollutants in the water are removed by adopting a disc type reverse osmosis membrane separation technology, the membrane filtration separation treatment process 4 is provided with an ultrafiltration membrane filter cylinder 43 and a reverse osmosis filter cylinder 44, the ultrafiltration membrane filter is arranged in the ultrafiltration membrane filter cylinder 43, the ultrafiltration membrane filter is fixed on the side wall of the ultrafiltration membrane filter cylinder, the upper part of the ultrafiltration membrane filter cylinder is provided with an upper pipeline 41, the upper pipeline 41 is connected with a sewage outlet pipe 22 in the electrochemical electrolysis process 4, the lower part of the ultrafiltration membrane filter cylinder 43 is provided with a lower pipeline 42, the lower pipeline 42 is connected with the reverse osmosis filter cylinder 44, the sewage after the electrochemical electrolysis treatment is transmitted into the ultrafiltration membrane filter cylinder 43 and is transmitted into the filter cylinder 43 of the membrane separation, the industrial sewage is filtered by an ultrafiltration membrane, and is conveyed into a reverse osmosis filter cylinder 44 through a lower pipeline 42 arranged at the lower part of an ultrafiltration membrane filter cylinder 43 for reverse osmosis filtration.
The discharge process 5 is a process of finally discharging the industrial sewage after simple filtration, sedimentation coagulation, secondary filtration, electrochemical electrolysis and membrane filtration separation.
An efficient industrial sewage treatment method based on electrochemistry and membrane filtration technology comprises the following specific steps:
1) industrial sewage enters the sedimentation tank 1 through a sewage inlet 11 of the sedimentation tank 1 and a filter screen 13 in the sedimentation tank 1
In the coagulation-lowering tank 1, the industrial sewage after the sedimentation coagulation treatment is discharged through a sewage outlet 15 at the bottom of the coagulation-lowering tank;
2) the industrial sewage after the sedimentation coagulation treatment enters an electrolytic tank 2 in the electrochemical electrolysis process through a sewage inlet pipe 21 of the electrolytic tank 2, a direct-current power supply is started, the electrochemical electrolysis treatment is carried out on the industrial sewage, for example, if the industrial sewage contains a large amount of organic pollutants such as sulfur, nitrogen and the like, malodorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like generated after the decomposition treatment in the electrolytic tank 2 enter a deodorizing device 3 through an odor outlet 27 at the top of the electrolytic tank for deodorization treatment and then are discharged;
3) the industrial sewage treated by the electrochemical electrolysis process is filtered by a sewage outlet pipe 22 arranged at the right end of the side wall of the electrolytic cell 2 and then discharged, the industrial sewage discharged by the sewage outlet pipe 22 of the electrolytic cell 2 is conveyed to a membrane filtration and separation treatment device by an upper pipeline 41 arranged in the membrane filtration and separation treatment process, the industrial sewage enters an ultrafiltration membrane filter cartridge 43 through the upper pipeline 41 for ultrafiltration membrane filtration, and is conveyed to a reverse osmosis filter cartridge 44 by passing through a lower pipeline 42 arranged at the lower part of the ultrafiltration membrane filter cartridge for reverse osmosis filtration;
4) the industrial sewage treated by the simple filtration, sedimentation coagulation, secondary filtration, electrochemical electrolysis and membrane filtration separation steps is finally discharged in the discharge process, so that the whole process of treating the industrial sewage by using the method is completed.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these modifications and improvements are within the scope of the invention.
Claims (9)
1. The high-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology is characterized in that the treatment process of the treatment method comprises a sedimentation coagulation treatment process, an electrochemical electrolysis treatment process, a membrane filtration separation treatment process and a discharge process, the sedimentation coagulation treatment process comprises simple filtration of industrial sewage entering a sedimentation coagulation tank, sedimentation coagulation and filtration separation treatment after sedimentation coagulation treatment, the electrochemical electrolysis treatment process is a process of converting pollutants which are difficult to degrade in the industrial sewage into pollutants which are easy to degrade, and the membrane filtration separation treatment process is a process of further separating the pollutants in the sewage after the electrochemical electrolysis treatment by utilizing the membrane separation technology.
2. The method for high-efficiency industrial sewage treatment based on electrochemistry and membrane filtration technology according to claim 1, wherein the sedimentation coagulation treatment process is provided with a sedimentation coagulation tank (1), the top of the sedimentation coagulation tank (1) is provided with a sewage inlet (11), an inclined filter screen (13) is arranged below the sewage inlet (11), the filter screen (13) is fixed on the side wall of the sedimentation coagulation tank (11), a coagulant adding port (14) is arranged above the sedimentation coagulation tank (1), the inclined lower end of the filter screen (11) is provided with a pollutant discharge port (12), the bottom of the sedimentation coagulation tank (1) is provided with a sewage outlet (15), and the position of the sewage outlet (15) is provided with the filter screen.
3. The method for high-efficiency industrial sewage treatment based on electrochemistry and membrane filtration technology according to claim 1, wherein the electrochemical electrolysis treatment process is provided with an electrolytic cell (2), a direct current power supply and electrode plates.
4. The method for high-efficiency industrial sewage treatment based on electrochemistry and membrane filtration technology according to claim 3, characterized in that the electrode plates are provided with a plurality of groups, the electrode plates are arranged in a wave shape, the plurality of groups of electrode plates form an electrolysis mechanism in the electrolytic cell, each group of electrode plates are sequentially arranged in the inner cavity of the electrolytic cell (2), the direct current power supply is communicated with the electrolysis mechanism, and the anode plate is composed of an aluminum plate or an iron plate.
5. A high efficiency industrial sewage treatment method based on electrochemical and membrane filtration technology according to claim 3, characterized in that each set of electrode plates is composed of an anode plate (24), a cathode plate (25) and an aeration device (26) for supplying external oxygen to the cathode.
6. The method for high-efficiency industrial sewage treatment based on electrochemistry and membrane filtration technology according to claim 3, characterized in that an odor outlet (27) is arranged at the top of the electrolytic cell (2), a sewage inlet pipe (21) and a sewage outlet pipe (22) are respectively arranged at the left end and the right end of the side wall of the electrolytic cell (2), a filter screen is arranged on the sewage outlet pipe (22), a water inlet pipe regulating valve is arranged on the sewage inlet pipe (21), a water outlet pipe regulating valve is arranged on the sewage outlet pipe (22), a sludge discharge pipe (23) is arranged at the bottom of the electrolytic cell (2), and the sewage inlet pipe (21), the sewage outlet pipe (22) and the sludge discharge pipe (23) are all communicated with the electrolytic cell (2).
7. The method for treating high-efficiency industrial sewage based on electrochemistry and membrane filtration technology according to claim 1, wherein a deodorization device (3) is arranged at the top of an electrolytic cell (2) in the electrochemistry electrolysis process, the deodorization device (3) is provided with a buffer area (31), an induced draft fan (32), an absorption reaction chamber (33) and a power supply control system, a packing layer (35) is filled in the absorption reaction chamber (33), and a discharge port (34) is arranged at the top of the absorption reaction chamber (33).
8. The method for treating high-efficiency industrial sewage based on electrochemistry and membrane filtration technologies as claimed in claim 1, wherein the membrane filtration separation treatment process (4) is provided with an ultrafiltration membrane filter cartridge (43) and a reverse osmosis filter cartridge (44), an ultrafiltration membrane filter is arranged in the ultrafiltration membrane filter cartridge (43), the ultrafiltration membrane filter is fixed on the side wall of the ultrafiltration membrane filter cartridge, an upper pipeline (41) is arranged at the upper part of the ultrafiltration membrane filter cartridge, the upper pipeline (41) is connected with a sewage outlet pipe (22) in the electrochemistry electrolysis process (4), a lower pipeline (42) is arranged at the lower part of the ultrafiltration membrane filter cartridge (43), and the lower pipeline (42) is connected with the reverse osmosis filter cartridge (44).
9. An efficient industrial sewage treatment method based on electrochemistry and membrane filtration technology is characterized by comprising the following specific steps:
1) industrial sewage enters the sedimentation coagulation tank (1) through a sewage inlet (11) of the sedimentation coagulation tank (1) and a filter screen (13) in the sedimentation coagulation tank (1), and the industrial sewage after sedimentation coagulation treatment is discharged through a sewage outlet (15) at the bottom of the sedimentation coagulation tank;
2) the industrial sewage after the sedimentation coagulation treatment enters an electrolytic tank (2) in the electrochemical electrolysis process through a sewage inlet pipe (21) of the electrolytic tank (2), a direct-current power supply is started, the electrochemical electrolysis treatment is carried out on the industrial sewage, if the industrial sewage is industrial production wastewater containing a large amount of organic pollutants such as sulfur, nitrogen and the like, malodorous substances such as hydrogen sulfide, ammonia, methyl mercaptan and the like generated after the decomposition treatment in the electrolytic tank (2) enter a deodorizing device (3) through an odor outlet (27) at the top of the electrolytic tank for deodorization treatment and then are discharged;
3) the industrial sewage treated by the electrochemical electrolysis process is discharged after being filtered by a sewage outlet pipe (22) arranged at the right end of the side wall of the electrolytic cell (2), the industrial sewage discharged by the sewage outlet pipe (22) of the electrolytic cell (2) is conveyed to a membrane filtration and separation treatment device by an upper pipeline (41) arranged in the membrane filtration and separation treatment process, the industrial sewage enters an ultrafiltration membrane filter cartridge (43) for ultrafiltration membrane filtration by the upper pipeline (41), and is conveyed into a reverse osmosis filter cartridge (44) by a lower pipeline (42) arranged at the lower part of the ultrafiltration membrane filter cartridge for reverse osmosis filtration;
4) the industrial sewage treated by the simple filtration, sedimentation coagulation, secondary filtration, electrochemical electrolysis and membrane filtration separation steps is finally discharged in the discharge process, so that the whole process of treating the industrial sewage by using the method is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011532369.9A CN112723619A (en) | 2020-12-22 | 2020-12-22 | High-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011532369.9A CN112723619A (en) | 2020-12-22 | 2020-12-22 | High-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112723619A true CN112723619A (en) | 2021-04-30 |
Family
ID=75605853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011532369.9A Pending CN112723619A (en) | 2020-12-22 | 2020-12-22 | High-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112723619A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502754A (en) * | 2014-09-26 | 2016-04-20 | 青岛百键城环保科技有限公司 | High efficiency sewage treatment method |
| CN107890758A (en) * | 2017-11-09 | 2018-04-10 | 中海油天津化工研究设计院有限公司 | A kind of outer circulation type electrochemistry sewage treatment plant deodoration system and method |
| CN108622986A (en) * | 2018-05-15 | 2018-10-09 | 宁波合信节能环保科技有限公司 | A kind of waveform electrochemistry sewage disposal system |
| CN108911292A (en) * | 2018-09-13 | 2018-11-30 | 苏州特曼清环保科技有限公司 | A kind of industrial wastewater efficient process equipment and treatment process |
| CN109095698A (en) * | 2018-09-13 | 2018-12-28 | 苏州特曼清环保科技有限公司 | One kind filtering industrial waste water high-efficiency processing equipment based on electrochemistry and film |
| CN109231608A (en) * | 2018-12-03 | 2019-01-18 | 重庆大学 | A kind of wastewater electrochemical treatment strengthening and processing device and method |
| US20200055751A1 (en) * | 2016-11-16 | 2020-02-20 | Kyungpook National University Industry-Academic Cooperation Foundation | Method of membrane-coupled electrochemical advanced oxidation and its application device for water purification and water purification system using of the same |
| CN211445349U (en) * | 2019-10-31 | 2020-09-08 | 广东龙洋环保科技有限公司 | Waste water treatment device capable of improving filtering and impurity removing effects |
-
2020
- 2020-12-22 CN CN202011532369.9A patent/CN112723619A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502754A (en) * | 2014-09-26 | 2016-04-20 | 青岛百键城环保科技有限公司 | High efficiency sewage treatment method |
| US20200055751A1 (en) * | 2016-11-16 | 2020-02-20 | Kyungpook National University Industry-Academic Cooperation Foundation | Method of membrane-coupled electrochemical advanced oxidation and its application device for water purification and water purification system using of the same |
| CN107890758A (en) * | 2017-11-09 | 2018-04-10 | 中海油天津化工研究设计院有限公司 | A kind of outer circulation type electrochemistry sewage treatment plant deodoration system and method |
| CN108622986A (en) * | 2018-05-15 | 2018-10-09 | 宁波合信节能环保科技有限公司 | A kind of waveform electrochemistry sewage disposal system |
| CN108911292A (en) * | 2018-09-13 | 2018-11-30 | 苏州特曼清环保科技有限公司 | A kind of industrial wastewater efficient process equipment and treatment process |
| CN109095698A (en) * | 2018-09-13 | 2018-12-28 | 苏州特曼清环保科技有限公司 | One kind filtering industrial waste water high-efficiency processing equipment based on electrochemistry and film |
| CN109231608A (en) * | 2018-12-03 | 2019-01-18 | 重庆大学 | A kind of wastewater electrochemical treatment strengthening and processing device and method |
| CN211445349U (en) * | 2019-10-31 | 2020-09-08 | 广东龙洋环保科技有限公司 | Waste water treatment device capable of improving filtering and impurity removing effects |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102139990B (en) | Ultrasonic combined waste water treatment process and system of refuse leachate | |
| CN107473435B (en) | Catalytic oxidation method for treating low-concentration hardly biodegradable industrial organic wastewater | |
| CN105355950B (en) | A kind of macro-organism cathode microbial fuel cell stack device | |
| CN107522267A (en) | A kind of multistage out-phase three-dimensional electrochemical reaction unit for waste water treatment | |
| CN105585082A (en) | Integrated electrochemical treatment device for deep treatment and deep treatment method | |
| CN110845057A (en) | Electrochemical coupling ozone micro-nano bubble treatment system and wastewater treatment method | |
| CN106277555A (en) | The high efficiency, low cost processing method of a kind of coking chemical waste water and system | |
| CN1978346A (en) | Refuse leachate treatment technology | |
| CN207861965U (en) | A kind of multistage out-phase three-dimensional electrochemical reaction unit for waste water treatment | |
| KR101168691B1 (en) | Method and system for treating supernatant of food waste | |
| CN211946615U (en) | Electrochemical coupling ozone micro-nano bubble processing system | |
| CN211411617U (en) | Electrochemistry improved biological filter tower purification device | |
| CN210176665U (en) | Electrocatalytic oxidation treatment system for domestic sewage | |
| CN110559841A (en) | Electrochemistry improved biological filter tower purification device and application thereof | |
| CN104118966A (en) | A three-dimensional electric-biology-coupled water purification system with gas and water flowing at different directions and a water purification method | |
| CN212315845U (en) | Mobile garbage transfer station leachate treatment device | |
| CN212127868U (en) | Electromagnetic strong oxidation coking wastewater advanced treatment system | |
| CN109970277B (en) | AO-electrocatalytic oxidation combined garbage transfer station leachate treatment device and process | |
| CN107890758B (en) | External circulation type electrochemical sewage treatment plant deodorization system and method | |
| CN212440656U (en) | Industrial sewage and waste gas treatment equipment | |
| CN214571275U (en) | High-efficient industrial sewage equipment based on electrochemistry and membrane filtration technique | |
| CN112723619A (en) | High-efficiency industrial sewage treatment method based on electrochemistry and membrane filtration technology | |
| CN211635954U (en) | Effluent water sump adds lid tail gas purification deodorizing device | |
| CN212198916U (en) | Three-dimensional electrochemical coupling three-dimensional electric biological coking wastewater treatment system | |
| CN212532677U (en) | Landfill leachate treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |