CN221071257U - Salt-containing sewage treatment system - Google Patents
Salt-containing sewage treatment system Download PDFInfo
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- CN221071257U CN221071257U CN202322607866.6U CN202322607866U CN221071257U CN 221071257 U CN221071257 U CN 221071257U CN 202322607866 U CN202322607866 U CN 202322607866U CN 221071257 U CN221071257 U CN 221071257U
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the technical field of sewage treatment, and provides a salt-containing sewage treatment system, which comprises: the utility model relates to a sewage treatment device, which comprises a regulating homogenizing tank, a high-density sedimentation tank, a V-shaped filter tank, an ultrafiltration system, a reverse osmosis system and a water producing tank, wherein a water outlet of the regulating homogenizing tank is connected with a water inlet of the high-density sedimentation tank, a water outlet of the high-density sedimentation tank is connected with a water inlet of the V-shaped filter tank, a water outlet of the V-shaped filter tank is connected with a water inlet of the ultrafiltration system, a water outlet of the ultrafiltration system is connected with a water inlet of the reverse osmosis system, and a water outlet of the reverse osmosis system is connected with a water inlet of the water producing tank.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a salt-containing sewage treatment system.
Background
The salt-containing wastewater refers to industrial wastewater containing higher salt content, and is sewage generated in the industrial production process. The discharge of saline wastewater is a hazard to both the environment and human health and therefore requires treatment.
The application number is as follows: CN202220540326.3 discloses a saline sewage deep treatment device. The utility model provides a saline sewage advanced treatment device which comprises a regulating water tank, an oil-water separator, a DAF device, a homogenizing water tank, a denitrification A/O pool, a secondary sedimentation tank, an ozone catalytic oxidation device, a BAF pool, a high-density pool, a sand filter pool, an ultrafiltration device, an ultrafiltration water producing pool and a reverse osmosis device which are sequentially connected.
The sewage of the salt-containing sewage series is accepted by sewage discharged from a circulating water field and RO concentrated water of a chemical water station, and the sewage is often required to be treated due to the fact that the currently adopted water source is sea fresh water.
Disclosure of utility model
In order to solve the problem of how to treat the salt-containing sewage, the utility model provides a salt-containing sewage treatment system for solving the problem.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A salt-containing wastewater treatment system, comprising: the device comprises an adjusting homogenizing tank, a high-density sedimentation tank, a V-shaped filter tank, an ultrafiltration system, a reverse osmosis system and a water producing tank, wherein a water outlet of the adjusting homogenizing tank is connected with a water inlet of the high-density sedimentation tank, a water outlet of the high-density sedimentation tank is connected with a water inlet of the V-shaped filter tank, a water outlet of the V-shaped filter tank is connected with a water inlet of the ultrafiltration system, a water outlet of the ultrafiltration system is connected with a water inlet of the reverse osmosis system, a water outlet of the reverse osmosis system is connected with a water inlet of the water producing tank, and a water outlet of the water producing tank is connected with a water inlet of a circulating water field.
Preferably, a stirring blower is arranged in the regulating homogenizing tank.
Preferably, the high-density sedimentation tank comprises: the device comprises a coagulation area, a flocculation area, a current stabilizer, matched ferric chloride, PAM, liquid alkali, a sulfuric acid dosing system and a solid waste incineration device.
Preferably, a filter material is arranged in the V-shaped filter tank, and the filter material medium is quartz sand.
Preferably, the ultrafiltration system comprises: an ultrafiltration lifting tank, a self-cleaning filter, an ultrafiltration device and an ultrafiltration water producing tank.
Preferably, the reverse osmosis system comprises: the device comprises a reverse osmosis device, a backwash discharge water tank and a reverse osmosis concentrated water tank, wherein a purified water outlet of the reverse osmosis device is connected with a water inlet of the backwash discharge water tank, a water outlet of the backwash discharge water tank is connected with a water inlet of a circulating water field, a concentrated water outlet of the reverse osmosis device is connected with a water inlet of the reverse osmosis concentrated water tank, and a water outlet of the reverse osmosis concentrated water tank is connected with a water inlet of a high-salt sewage treatment system.
Preferably, the reverse osmosis apparatus comprises: desalination device, dosing device, chemical cleaning system and rinse system.
Preferably, the chemical cleaning system comprises: cleaning pump, cleaning medicine tank and cartridge filter.
Preferably, the desalination device employs a polyamide composite membrane.
The utility model has the advantages that: the sediment at the bottom of the tank can be effectively prevented by adjusting the homogenizing tank through intermittent blast stirring; the high-density sedimentation tank is fully mixed by adding the medicament into the coagulation and flocculation areas, and forms an internal circulation flow state under the pushing of a lifting facility in the reaction current stabilizer, so that the growth and uniformity of the flocs are facilitated, and meanwhile, a certain flow velocity is maintained without breaking the formed flocs. After the sewage enters the sedimentation zone, the rapid separation can be realized, and the sludge flows back to the flocculation zone in front of the high-density tank, so that the impact resistance of the system is enhanced, and meanwhile, the addition of polymer medicaments can be saved; the V-shaped filter tank further removes suspended matters and colloid, and the filter material medium is quartz sand, so that suspended matters and colloid in water can be effectively removed, and sewage can be recycled after meeting the reuse water standard. The V-shaped filter tank is backwashed regularly, backwash water is from a reuse water tank, and backwash gas is from a backwash fan; the ultrafiltration is to filter water by using a filter membrane with the pore diameter of 0.01-0.1 micron by taking pressure as driving force. The operation pressure is below 0.3Mpa, macromolecular compounds and colloids with diameters of 0.005-10 micrometers and molecular weights of more than 500 in water can be separated, and suspended matters, colloids, bacteria, viruses and partial organic matters in the water can be effectively removed. Compared with the conventional separation technology, the membrane separation process has the advantages of no phase change, low energy consumption, simple process, no environmental pollution, easy realization of automation and the like, and can be operated at normal temperature. The ultrafiltration device is totally provided with 5 sets, each set can be independently operated, and can also be operated simultaneously, and full-quantity filtration (retaining cross-flow measures) is adopted. In principle, the water inlet suspension of the ultrafiltration device is not more than 10mg/L, and the turbidity is not more than 5NTU. Cross-flow filtration is performed, and the membrane maintains a certain flow rate on the water inlet side of the membrane while filtering. The cross-flow filtration mode can reduce membrane pollution, prolong the water production period and reduce the backwashing and cleaning times. Concentrated water generated in the cross-flow filtration mode is uniformly recovered to the water inlet end of ultrafiltration and is circulated into the device through a circulating pump. The ultrafiltration device control system can reflect and record the running states of each part of the system, such as membrane passing differential pressure (TMP), membrane flux, flow and the like; the control system can adjust various operation parameters (such as backwash flow, time interval, maintainability cleaning agent concentration and the like) according to actual operation conditions, so that stable and automatic operation can be well realized, and the workload of operators is reduced; during the cleaning process of the membrane, backwash liquid enters the inner side of the hollow fiber membrane from a permeate outlet of the membrane assembly and is reversely cleaned from inside to outside. Simultaneously, compressed air is added into a stock solution inlet of the membrane assembly, and air oscillation and bubble scrubbing are carried out on the outer wall of the hollow fiber membrane. The pressurized air rising in the space between the outer wall of the hollow fiber and the outer shell of the membrane component acts together with backwash water to clean the pollutants on the surface of the membrane, and the cleaned sewage is discharged from a sewage outlet; the reverse osmosis membrane components are connected in a first-stage two-stage mode, the sections are connected in parallel and connected in series, the membrane elements adopt inlet anti-pollution membranes, the average membrane flux is less than or equal to 18L/m 2 h, and the system recovery rate is more than or equal to 70%. The technology uses the pressure to drive force and uses the selectivity that the reverse osmosis membrane can only permeate water but not permeate solute, but the solute in the water solution is separated from water. Reverse osmosis membranes are critical for achieving reverse osmosis and must have good separation permeability and physical and chemical stability. The operating pressure of the reverse osmosis device is 1.7MPa, the reverse osmosis one-stage water inlet pressure PN25, the water production pressure PN16 and the concentrated water side design pressure PN25, and in order to effectively protect the reverse osmosis membrane from preventing organic pollution, the system is provided with a device for automatically flushing the reverse osmosis membrane after system shutdown, and a non-oxidizing bactericide is added regularly to sterilize the reverse osmosis membrane regularly. The periodic maintenance cleaning can prolong the chemical cleaning period of the reverse osmosis membrane, reduce or reduce the irrecoverable pollution to the membrane caused by pollutants, and prolong the service life of the membrane.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a process flow diagram of the present utility model;
figure 2 is a process flow diagram of the present ultrafiltration system and reverse osmosis system.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
Embodiment one, described with reference to fig. 1 and 2:
A salt-containing wastewater treatment system, comprising: the device comprises an adjusting homogenizing tank, a high-density sedimentation tank, a V-shaped filter tank, an ultrafiltration system, a reverse osmosis system and a water producing tank, wherein a water outlet of the adjusting homogenizing tank is connected with a water inlet of the high-density sedimentation tank, a water outlet of the high-density sedimentation tank is connected with a water inlet of the V-shaped filter tank, a water outlet of the V-shaped filter tank is connected with a water inlet of the ultrafiltration system, a water outlet of the ultrafiltration system is connected with a water inlet of the reverse osmosis system, a water outlet of the reverse osmosis system is connected with a water inlet of the water producing tank, and a water outlet of the water producing tank is connected with a water inlet of a circulating water field.
The ultrafiltration is a pressurized membrane separation technology, namely, under a certain pressure (the using pressure is usually 0.01-0.3 MPa), small molecular solutes and solvents pass through a special membrane with a certain pore diameter, and macromolecular solutes cannot permeate and remain on one side of the membrane, so that macromolecular substances are partially purified. Ultrafiltration is one of the membrane separation technologies that uses pressure as the driving force. The purpose is to separate large molecules from small molecules. Most ultrafiltration membranes are of an asymmetric structure and consist of an extremely thin skin layer with a certain size and pore size and a thicker porous layer with a spongy or appointed structure. The former acts as a separation and the latter acts as a support. In the ultrafiltration membrane separation process, the pore size of the membrane, the chemical properties of the surface of the membrane and the like respectively play different roles in separation. In general, ultrafiltration membranes have performance indicators such as permeate flux and rejection. The ultrafiltration can retain particles and impurities between 0.002 and 0.1 microns, and the ultrafiltration membrane allows small molecular substances and soluble solids (inorganic salts pass through), but effectively blocks colloids, proteins, microorganisms and macromolecular organic substances, and the cutting molecular weight used for representing the ultrafiltration membrane is generally between 1000 and 100000. The performance of ultrafiltration membranes, such as pressure resistance, cleaning resistance, temperature resistance, etc., is very important for industrial applications. At present, the commercialized ultrafiltration membranes made of organic materials are prepared by a phase inversion method. The system uses external pressure type ultrafiltration, and adopts a full-automatic PLC control continuous operation mode of full-flow filtration and frequent backwashing. All the effluent water of the ultrafiltration system enters a subsequent reverse osmosis system and is treated to be used as the makeup water of the circulating cooling tower.
Reverse osmosis is also called reverse osmosis, and uses pressure difference as driving force. The principle is that the characteristic of permeable and impermeable to salt of a semipermeable membrane is utilized to remove dissolved salt in water, and simultaneously remove some organic macromolecules. The liquid on one side of the membrane is pressurized and when the pressure exceeds its osmotic pressure, the solvent will reverse permeate against the natural direction of permeation. Thereby obtaining a permeate solvent, i.e., permeate, on the low pressure side of the membrane; the high pressure side gives a concentrated solution, i.e. a concentrate. The reverse osmosis device comprises a high-pressure pump, an RO membrane group, a shutdown flushing system and the like. After long-term operation, certain dirt which is difficult to rinse can be accumulated on the reverse osmosis membrane, such as organic matters, inorganic salt scaling and the like, so that the performance of the reverse osmosis membrane is reduced. Such foulants must be removed by cleaning with chemicals to restore the performance of the reverse osmosis membrane. The chemical cleaning is carried out by using a reverse osmosis chemical cleaning device, and the device comprises a chemical cleaning box, a chemical cleaning cartridge filter, a chemical cleaning pump and matched pipelines, valves and meters. When the membrane component is polluted, the membrane component can be used for chemical cleaning of a reverse osmosis system, so that the device and the reverse osmosis membrane are effectively maintained.
And the water outlets of the regulating homogenizing tank, the high-density sedimentation tank, the V-shaped filter tank, the ultrafiltration system and the reverse osmosis system are all provided with monitoring devices for monitoring the produced water of the regulating homogenizing tank, the high-density sedimentation tank, the V-shaped filter tank, the ultrafiltration system and the reverse osmosis system.
The homogenizing tank is regulated to monitor COD, pH, BOD, ammonia nitrogen, total nitrogen, TDS, chloride ion, total phosphorus, zinc and hardness.
The high density sedimentation tank needs to monitor suspended matters, total phosphorus, zinc and total hardness items.
The V-shaped filter tank needs to monitor COD, pH, BOD items of suspended matters, total nitrogen, total phosphorus, petroleum, chloride ions and conductivity.
The ultrafiltration system is required to monitor turbidity, COD, PH, conductivity, petroleum, total alkalinity projects.
Reverse osmosis systems require monitoring of suspended matter, COD, PH, BOD, total phosphorus, petroleum, TDS, chloride ions, conductivity, sulfide, volatile phenol, calcium hardness, sulfate ions, total iron, free chlorine, total bacteria, chromaticity, turbidity projects.
And a stirring blower is arranged in the regulating homogenizing tank. The homogenizing tank is regulated, and the sludge at the bottom of the tank can be effectively prevented from settling by intermittent blast stirring. The regulating homogenizing tank is a regulating facility for production sewage and is used for stabilizing the water quality and quantity. The volume of the homogenizing tank is adjusted to 15000m 3, a perforated pipe is arranged at the bottom of the tank, and the homogenizing tank is not used under normal working conditions and is only used for periodically mixing and stirring sewage and stirring tank bottom sludge. And the high-concentration waste gas on the top of the regulating tank enters the high-concentration waste gas device along a high-concentration waste gas pipeline through the single call valve and the flame arrester. The pressure gauge and the liquid level gauge are arranged in the adjusting homogenizing tank, and data are uploaded to the DCS room.
The high-density sedimentation tank comprises: the device comprises a coagulation area, a flocculation area, a current stabilizer, matched ferric chloride, PAM, liquid alkali, a sulfuric acid dosing system and a solid waste incineration device. The effluent of the homogenizing tank is regulated to flow automatically (or be conveyed by a pump) to a high-density sedimentation tank, the inlet water passes through coagulation, flocculation, sedimentation clarification and sludge concentration, and the sewage is fully mixed with the FeCL 3 and PAM medicaments which are added through a coagulation and flocculation area. And one part of the sludge deposited at the bottom of the tank is discharged to the solid waste incineration device after staying for a period of time, and the other part of the sludge flows back to a flocculation area in front of the high-density tank. The PH of the water inlet and outlet is regulated by a sodium hydroxide and sulfuric acid dosing system.
The V-shaped filter tank is internally provided with a filter material, and the filter material medium is quartz sand. The effluent from the high-density tank flows to a subsequent V-shaped filter tank, and is used for further removing suspended matters, colloid and the like in the sewage. After water to be filtered passes through the water inlet valve and the square hole from the water inlet main channel, overflows through the weir crest and enters the V-shaped groove submerged by the water to be filtered through the water distribution hole and the V-shaped groove weir which are uniform at the bottom of the groove respectively, the filtered water filtered by the filter layer of the homogeneous filter material flows into the bottom space through the long handle filter head, and flows into the air-water distribution pipe channel from the square hole, and flows into the water producing pool through the water seal well, the water outlet weir and the clear water channel in the pipe channel. The filter tank can determine the gas and water backwashing period through the pressure difference and time, remove the trapped pollutants regularly and recover the filtering performance. The backwash water is produced by adopting a V-shaped filter tank, and backwash wastewater is discharged to a backwash wastewater lifting tank.
The ultrafiltration system comprises: an ultrafiltration lifting tank, a self-cleaning filter, an ultrafiltration device and an ultrafiltration water producing tank.
The ultrafiltration device adopts an ultrafiltration device PVDF external pressure hollow fiber membrane.
The reverse osmosis system comprises: the device comprises a reverse osmosis device, a backwash discharge water tank and a reverse osmosis concentrated water tank, wherein a purified water outlet of the reverse osmosis device is connected with a water inlet of the backwash discharge water tank, a water outlet of the backwash discharge water tank is connected with a water inlet of a circulating water field, a concentrated water outlet of the reverse osmosis device is connected with a water inlet of the reverse osmosis concentrated water tank, and a water outlet of the reverse osmosis concentrated water tank is connected with a water inlet of a high-salt sewage treatment system.
The reverse osmosis apparatus comprises: desalination device, dosing device, chemical cleaning system and rinse system. The reverse osmosis system has 5 groups of reverse osmosis facilities.
The reverse osmosis device is provided with a set of dosing device, the dosing amount can be adjusted according to the water inflow of the desalination device, the scaling and oxidization of the membrane element are prevented, and the non-oxidizing bactericide can be added at the water inlet end of the device in an impact manner, so that bacteria breeding in the water is prevented, and the biological pollution to the membrane is prevented.
The chemical cleaning system includes: cleaning pump, cleaning medicine tank and cartridge filter. By the arrangement, after the membrane element of the desalination device is blocked, the original performance of the membrane element can be recovered by chemical cleaning.
The desalination device adopts a polyamide composite membrane. The desalination device adopts a modularized design and is divided into 5 sets of reverse osmosis units which can independently operate. The desalination device adopts a first stage two sections, a first section 22 membrane shells and a second section 11 membrane shells, 6 membrane elements are arranged in each container, and 33 membrane shells and 198 membrane elements are arranged in each unit.
The working principle of the utility model is as follows: the sewage discharged by the upstream device is conveyed to the regulating homogenizing tank through a system pipeline, and 1 regulating homogenizing tank is arranged at the same time of 15000m 3. An online temperature and conductivity analyzer is arranged before the tank is fed, the conductivity and the temperature are monitored in real time, a blast stirring facility is arranged on the homogenizing tank, and sewage is stirred and mixed to avoid sludge sedimentation. The high-density sedimentation tank is a compact sewage treatment system integrating coagulation, flocculation, sedimentation clarification and sludge concentration, sewage firstly passes through a coagulation and flocculation area, feCL3 and PAM are evenly released and added through micropores on an adding ring, and the medicines and the sewage are fully mixed to form flocs which are favorable for separation. After the sewage enters the precipitation zone, the rapid separation can be realized, so that pollutants SS and total phosphorus in the water are removed. Meanwhile, one part of sludge deposited at the bottom of the tank is discharged to the solid waste incineration device after staying for a period of time, and the other part of sludge flows back to a flocculation area in front of the high-density tank. The PH of the water inlet and outlet is regulated by sodium hydroxide and sulfuric acid. The V-shaped filter tank is used for further removing suspended matters and colloid in the sewage. The filter tank determines the gas and water backwashing period through the pressure difference and time, periodically removes the trapped pollutants and restores the filtering performance. The backwash water of the V-shaped filter tank comes from a reuse water tank, backwash air comes from a backwash fan, pneumatic switch valves are arranged on a water inlet pipe, a water outlet pipe, a backwash water inlet pipe, a backwash air inlet pipe and a backwash wastewater pipe, and the whole backwash process is automatically controlled through a DCS system. And the backwash wastewater is discharged to a backwash wastewater lifting pond. The ultrafiltration system adopts a sieve mesh separation mechanism. The membrane is of a porous asymmetric structure, molecules or ions with the size smaller than the membrane separation aperture can pass through the fiber wall under the drive of pressure, and molecules or ions with the size larger than the membrane separation aperture are trapped by the fiber wall, so that the separation of the size ions is realized. Raw water of the reverse osmosis system is pressurized and lifted from a water inlet end and then is sent into the membrane element. When the operation pressure higher than the natural osmotic pressure is applied to one side of the concentrated solution, the flowing direction of natural permeation of water molecules is reversed, water molecules in raw water are partially purified and produced water on the dilute solution side through the membrane, the water flows out from a product water pipe at the central part of the membrane element, and the rest part is left on the concentrated solution side and is discharged as concentrated water. The reverse osmosis feed water (i.e., ultrafiltration product water) requires the addition of a scale inhibitor to prevent scaling of the concentrate side of the membrane element prior to entering the membrane. In order to prevent the water from containing the oxidizing bactericide, a reducing agent must be added before the water enters the reverse osmosis device. The addition amount of the scale inhibitor and the reducer is determined according to the types of the medicaments, the water inflow amount, the water inflow temperature and other actual conditions. The pollution of bacteria to the reverse osmosis membrane belongs to unrecoverable pollution, and often determines whether the reverse osmosis system can normally operate, and as the temperature of incoming water is above 25 ℃ throughout the year, bacteria are easy to grow. The non-oxidative bactericide is added to prevent bacteria from polluting the reverse osmosis membrane and ensure the normal operation of the reverse osmosis system. Reverse osmosis membranes must be chemically cleaned to recover their performance in the event of fouling. Any one of the following three indexes is regarded as fouling: first, the total pressure difference of the system is more than 10% of the initial pressure difference; secondly, the water yield of the system is reduced by more than 10% -15% compared with the initial water yield; third, the desalination rate was reduced to 90%. The cleaning agent is selected according to different pollution conditions of the membrane. The cleaning is divided into two main types, namely acid cleaning and alkaline cleaning, wherein the acid cleaning mainly removes iron oxide, ca and Mg scale on the surface of the membrane, and the alkaline cleaning is mainly applied to cleaning of organic matter pollution.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present utility model should be included in the scope of the technical solutions of the present utility model.
Claims (9)
1. A salt-containing wastewater treatment system, comprising: the device comprises an adjusting homogenizing tank, a high-density sedimentation tank, a V-shaped filter tank, an ultrafiltration system, a reverse osmosis system and a water producing tank, wherein a water outlet of the adjusting homogenizing tank is connected with a water inlet of the high-density sedimentation tank, a water outlet of the high-density sedimentation tank is connected with a water inlet of the V-shaped filter tank, a water outlet of the V-shaped filter tank is connected with a water inlet of the ultrafiltration system, a water outlet of the ultrafiltration system is connected with a water inlet of the reverse osmosis system, a water outlet of the reverse osmosis system is connected with a water inlet of the water producing tank, and a water outlet of the water producing tank is connected with a water inlet of a circulating water field.
2. A salt-containing wastewater treatment system as claimed in claim 1, wherein the conditioning homogenization tank is provided with a stirrer blower.
3. A salt-containing wastewater treatment system as claimed in claim 1, wherein the high density sedimentation tank comprises: the device comprises a coagulation area, a flocculation area, a current stabilizer, matched ferric chloride, PAM, liquid alkali, a sulfuric acid dosing system and a solid waste incineration device.
4. The salt-containing sewage treatment system according to claim 1, wherein a filter material is arranged in the V-shaped filter tank, and the filter material medium is quartz sand.
5. A salt-containing wastewater treatment system as claimed in claim 1, wherein the ultrafiltration system comprises: an ultrafiltration lifting tank, a self-cleaning filter, an ultrafiltration device and an ultrafiltration water producing tank.
6. A salt-containing wastewater treatment system as claimed in claim 1, wherein the reverse osmosis system comprises: the device comprises a reverse osmosis device, a backwash discharge water tank and a reverse osmosis concentrated water tank, wherein a purified water outlet of the reverse osmosis device is connected with a water inlet of the backwash discharge water tank, a water outlet of the backwash discharge water tank is connected with a water inlet of a circulating water field, a concentrated water outlet of the reverse osmosis device is connected with a water inlet of the reverse osmosis concentrated water tank, and a water outlet of the reverse osmosis concentrated water tank is connected with a water inlet of a high-salt sewage treatment system.
7. A salt-containing wastewater treatment system as claimed in claim 6, wherein the reverse osmosis unit comprises: desalination device, dosing device, chemical cleaning system and rinse system.
8. A salt-containing wastewater treatment system as set forth in claim 7 wherein the chemical cleaning system includes: cleaning pump, cleaning medicine tank and cartridge filter.
9. The system of claim 7, wherein the desalination device comprises a polyamide composite membrane.
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| CN202322607866.6U CN221071257U (en) | 2023-09-26 | 2023-09-26 | Salt-containing sewage treatment system |
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