CN205653272U - Water treatment device - Google Patents

Water treatment device Download PDF

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Publication number
CN205653272U
CN205653272U CN201620523945.6U CN201620523945U CN205653272U CN 205653272 U CN205653272 U CN 205653272U CN 201620523945 U CN201620523945 U CN 201620523945U CN 205653272 U CN205653272 U CN 205653272U
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water
reverse osmosis
water treatment
high efficiency
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张建飞
权秋红
元西方
张普寨
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Henan Bestter Environmental Protection Technology Co Ltd
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Henan Bestter Environmental Protection Technology Co Ltd
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Abstract

The utility model relates to a water treatment device, the device includes processing unit in advance, ultrafiltration unit, reverse osmosis unit and the electrodialysis unit that is provided with high -efficient depositing reservoir and sand filtration, wherein processing unit's play water department and ultrafiltration unit's an intercommunication of intaking in advance, ultrafiltration unit's a play water department and reverse osmosis unit's an intercommunication of intaking. The utility model discloses each unit is the steady operation completely, can effectually get rid of aquatic overwhelming majority soluble salt branch, suspended solid, colloid, hardness, basicity, COD, organic matter and microorganism etc. And process flow is simple, adopts the modular structure design, makes operation management more convenient.

Description

A kind of water treatment facilities
Technical field
This utility model relates to water treatment field, particularly relates to a kind of water treatment facilities.
Background technology
High slat-containing wastewater refers to the waste water of total saliferous mass fraction >=1%, typically belongs to used water difficult to degradate.Especially It is industry strong brine, its inorganic salinity containing high concentration and substantial amounts of refractory organic or poisonous Material, if this type of waste water is unprocessed is directly discharged into natural water body, will necessarily be to aqueous bio, life Drinking water and industrial and agricultural production use water produce harm greatly, will cause huge pressure to ecological environment. Processing method be broadly divided into biological treatment and physical-chemical process.The most relatively common has steaming Evaporate desalination process, absorption method, embrane method, reverse osmosis, bioanalysis etc..
Biological treatment is that current waste water processes one of most common method, and it has applied range, fits The features such as Ying Xingqiang.But the inorganic salt in high saline sewage has stronger inhibitory action to general microorganism, The Organic substance of high saline sewage is different according to production process, contained organic kind and chemical property difference Relatively big, but contained salts substances mostly is Cl-、SO4 2-、Na+、Ca2+Deng salts substances.Although these Ion is all nutrient necessary to growth of microorganism.If but these ion concentrations are too high, can be to micro- Biological generation is suppressed and toxic action.To this end, the biological treatment of high saline sewage is generally at low salt concn (salt Concentration < 1%) under run.Day however as water resource is becoming tight, and the water conservation that country puts into effect is each Item regulation and the enforcement of charge, the enterprise processed to high saline sewage brings burden, when saliferous in sewage When amount is more than 2g/L, bioanalysis is used to carry out high-salt sewage intractability bigger.
Physical-chemical process includes distilling desalination process, adsorption technology, film desalination process etc..Distillation desalination process is one Planting the most ancient, the most frequently used desalination process, the way of distillation is allowed to explosive evaporation brackish water heating exactly, then Steam is condensed into the process of fresh water.The advantage of the way of distillation is simple in construction, processing ease, gained fresh water Water quality is good.The way of distillation has a variety of, and widely used have: multiple-effect evaporation (MED), low temperature Multi-effect distilling (LT-MED), multistage flash evaporation (MSF) etc..Adsorption technology is to utilize adsorbent and pollution Physics chemical action between thing be combined with each other, by pollutant removing from water.According to adsorption mechanism not With, physical absorption, chemisorbed and ion-exchange absorption can be divided into attached, it is often the case that three kinds of mechanism are simultaneously Occur.Film desalination process is to utilize permeable pressure head to realize the technology of desalination as motive force.Film desalination process is main Have reverse osmosis (RO), disc tube reverse osmosis (dt-ro) (DTRO), Membrane Materials (MD), just permeate (FO), Electrodialysis (ED) etc..It is low that film desalination process has small investment, energy consumption, also is able to reach deep desalting simultaneously Purpose, producing water can be as recycle-water.Simple in construction, processing ease, gained fresh water water quality are good, but But there is the shortcomings such as investment cost is high, floor space is big, power consumption is high.
Utility model content
For the deficiency of prior art, this utility model provides a kind of water treatment facilities, described device bag Include and be provided with high efficiency clarification tank and sand filtering device, ultrafiltration apparatus and supertension reverse osmosis unit, wherein said High efficiency clarification tank connects sewage collecting box and described sand filtering device, and described sand filtering device connects ultrafiltration apparatus, Described ultrafiltration apparatus connects supertension reverse osmosis unit;Described supertension reverse osmosis unit connects product Water circulation Device;Described high efficiency clarification tank includes coagulation unit, flocculation unit and precipitation clarification unit;Described ultrafiltration Device includes that ultrafilter membrane, the aperture of described ultrafilter membrane are 1~50nm;Described supertension reverse osmosis unit There is microfilter.
According to a kind of preferred implementation, described high efficiency clarification tank also includes lime cream haptoreaction unit.
According to a kind of preferred implementation, the entrance of described high efficiency clarification tank arranges coagulant dosage unit.
According to a kind of preferred implementation, the pore diameter range of the ultrafilter membrane of described ultra filtration unit be 1~ 50nm。
According to a kind of preferred implementation, the aperture of described microfilter be 25 μm.
According to a kind of preferred implementation, the length, width and height of described flocculation unit be respectively 0.7m, 0.7m and 1.85m。
According to a kind of preferred implementation, described high efficiency clarification tank and filter element are arranged at a container In, described ultrafiltration apparatus and supertension reverse osmosis unit are arranged in same container.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of a kind of embodiment of this utility model;
Fig. 2 is the device schematic diagram of this utility model another embodiment;With
Fig. 3 is the device schematic diagram of this utility model another embodiment.
Detailed description of the invention
It is described in detail below in conjunction with the accompanying drawings.
Pretreatment unit pretreatment section uses high efficiency clarification tank+sand filtration, is reduced hard by physical-chemical reaction Degree, COD, colloid and turbidity etc..Due to oil refining, chemical fibre sewage quality variation characteristic, different drainings Water quality differs greatly, and the ion concentration of easy fouling in water is high, and not biodegradable Organic substance holds especially The dirt easily causing membranous system is blocked up, and for ensureing the stable operation of follow-up pair of film unit, pretreatment uses sodium carbonate Solidifying high efficiency clarification tank and sand filtering device is helped with sodium hydroxide softening, poly-aluminum coagulation, PAM.Softening process Chemical feeding quantity can be controlled flexibly according to influent quality;Except removing partial organic substances and microorganism, further Reducing outside float, topmost effect is to reduce the basicity in sewage and temporary hardness, it is ensured that after The safety of continuous water and economy.Coagulation clarification arranges sand filtering device after processing, and that removes further in water is thin The impurity such as little granule, float, colloid.
High efficiency clarification tank is clarified three unit combinations by coagulation unit, flocculation unit and precipitation and is formed. Its technological core be sludge reflux and tube settling application, by sludge reflux provide cohesion core, Add reaction zone concentration of suspension, strengthen flocculating effect and reclaimed part medicament simultaneously.
High efficiency clarification tank has removal dirty Organic substance in water, colloid, the effect of float, increases and adds stone During ash breast haptoreaction unit, additionally it is possible to realize part and soften.High efficiency clarification tank entrance is coagulant dosage Unit, is sufficiently stirred for making coagulant and sewage be fully contacted by blender and carries out coagulating, formed big The flocculation group of amount.Sewage is entered the flocculation unit of sedimentation tank by water outlet bottom coagulation section, leads at flocculation unit Cross and add flocculant and low rate mixing makes above-mentioned a large amount of flocculations group form big and closely knit alumen ustum.Pass through The sewage of flocculation section enters the precipitation clarification unit of high efficiency clarification tank, is provided with enough oblique in this element Plate desilting area, makes current can flow through sloping plate deposition with the flow velocity relaxed through sloping plate deposition, overflows in top The clear water of stream is collected by collecting tank and is flowed into next treatment facility, the alumen ustum that bottom precipitates along swash plate to Lower slider, is deposited in precipitation clarification unit bottom, and the mud part in bucket is squeezed into by sludge reflux pump Front end coagulation section backflow, in order to giving full play to the effect of medicament, excess sludge is squeezed into mud by sludge lifting pump Stock tank, enters Treatment of Sludge flow processing.
The feature of high efficiency clarification tank: (1) is provided with outside sludge circulation system and mud is carried from sludge condensation district It is raised to reaction tank water inlet pipe, mixes with former water;(2) cohesion-flocculation is carried out in two reaction zones, first First pass through the hybrid reaction district of stirring, subsequently enter pulling flow type reaction zone;(3) synthesis organic-flocculation is used Agent PAM;(4) can keep completely from low speed reaction zone to tube settling district alumen ustum, and the vitriol produced Hua Zhijun, density are high;(5) use efficient tube settling, the settling zone rate of climb up to 20~ 40m/h, efficient alumen ustum is well precipitated at this;(6) sludge condensation, water outlet can be effectively completed Water stabilization, anti impulsion load.
Intermediate pool water outlet, intakes through the filtering layer of sand filtration, it is possible to effectively remove after pump promotes The impurity such as float, colloid in water, when the impurity retained in filtering layer is too much, filtering layer mesopore is blocked, The resistance of current increases, and the rate of filtration diminishes, and for recovering the former rate of filtration, can use sand filtration water outlet and pressure Contracting air carries out regular backwash, the impurity accumulated is rinsed out in filtrate hole, recovers filter capacity.Often Filtering layer filler be quartz sand, retain the precision of float more than 5~10 μm, delivery turbidity exists Below 3NTU.
Ultrafiltration (UF) can be used for the microgranule in removing water, colloid, antibacterial, virus, thermal source, protein And larger molecular organics, make water be purified.In the present embodiment, the pore diameter range of ultrafilter membrane is 1~50nm, Molecular weight can be separated more than thousands of macromole and colloidal substance from aqueous solution.For ultrafiltration, quilt The saying analyzing Ultra filtration membrane mechanism being widely used for image is that " screening " is theoretical.Preferably ultrafilter membrane Separation is screening process, and the most under pressure, solvent in material liquid and little solute particles are from high pressure Feed liquid side is through the low-pressure side of film, because size stops more than macromole and the microgranule tunicle of membrane aperture, and material Liquid is gradually concentrated;Macromole in solution, colloid, protein, microgranule etc. then retained by ultrafilter membrane and It is recovered as concentrated solution.But, actually ultrafilter membrane is in separation process, the pore size of film and film The chemical property on surface etc. will play different crown_interceptions respectively, it is thus impossible to simply analyze ultrafiltration Phenomenon, ultrafilter membrane has the key property of pore structure, the most also has the chemical property on film surface.Ultrafiltration The performance indications of film have permeation flux and rejection.The resistance to pressure of ultrafilter membrane, resistance to cleaning, temperature tolerance etc. Performance is for very important during commercial Application.
The present embodiment uses the hyperfiltration membrane assembly that times Jet, Inc produces, have outstanding chemical compatibility and High mechanical properties, can clean and the Chemical cleaning of high intensity by online backwashing.Journey is born in cleaning to chlorine Degree is up to 200mg/l.Ultrafiltration system film post employing inner pressed, water barotropic flow flowing mode from inside to outside, former Water from be positioned at film post top water inlet enter film post, former water inside film silk by the effect of pressure, thoroughly Crossing film silk filter membrane to enter outside film silk, the clear water the passed through pure water inlet from film post bottom collects, and enters Concentrate after collecting pipe and enter ultrafiltration water tank.Residue does not passes through the dense water of ultrafilter membrane and is refluxed receipts in the downstream of film Collection, is recycled to water inlet by film column bottom circulating pump.
The major function of supertension counter-infiltration system is to remove anion/cation in water, dissolubility colloid, little Molecular organic, antibacterial etc..Counter-infiltration system can reach more than 98% to the removal rate of ion.
Reverse osmosis unit is topmost desalter in native system, and counter-infiltration system utilizes reverse osmosis membrane Characteristic remove most of soluble salt in water divide, colloid, Organic substance and microorganism.
Water after hyperfiltration treatment carries out microporous filter, removes the trace suspension granule foreign in water, from And meet the reverse osmosis membrane system requirement to water inlet, 1 the 25 μm microporous filter of configuration of this counter-infiltration system Device, built-in 1 filter bag filter element, water after treatment enters the membrane module of pressure vessel.Hydrone and Minimal amount of small-molecular-weight Organic substance passes through film layer, after collection conduit is concentrated, is reinjected by water producing pipe Reverse osmosis produced water tank.Otherwise just can not be led to after another set collection conduit is concentrated by the material of film layer Concentrated water discharge pipe, is discharged to backwash water tank.The water inlet of system, product water and dense waterpipe is equipped with a series of Control valve, monitoring device and program control operation system, they by guarantee equipment energy long term guarantee quality, guarantor amount Systematization run.
Embodiment 2
The present embodiment, on the basis of embodiment 1 process equipment, have employed frequently pole-reversing electroosmosis device. I.e. the present embodiment include high efficiency clarification tank, sand filtering device, ultrafiltration apparatus, frequently pole-reversing electroosmosis device and Produce water recycling device.
EDR (frequently pole-reversing electroosmosis) is to develop with potential difference as motive force on the basis of electrodialysis Membrane separation process, for from aqueous solution remove ion, be mainly used in bitter desalination or desalinization. When brackish water is by being replaced closed assembly by anions and canons exchange membrane and dense, diluted gasket, and arrange at two ends During the electrodialytic compartment of electrode, produce under DC electric field effect ion directional migration, i.e. sun from Son migrates to cathode direction, and anion migrates to anode direction, passes through owing to ion exchange membrane has selection Property, anion exchange membrane can only allow anion pass through, and cation exchange membrane can only allow cation pass through, knot Really the anion in freshwater room migrates to anode direction, enters dense hydroecium through cavity block, and cation is to negative electrode Direction migrates, and enters dense hydroecium through anode membrane;And the anions and canons in dense hydroecium, although also at direct current Under the effect of electric field, migrate to anode and cathode direction respectively, but due to by compartment both sides anode membrane and the moon The stop of film, it is impossible to dense hydroecium of moving out, thus stay in dense hydroecium, so, dense hydroecium because of yin, yang from Son constantly enters and concentration improves, and freshwater room makes lowering of concentration because anions and canons constantly removes, and passes through Each current dense, light compartment are converged and draw, just produce two strands of main water by hole that separator edge is special respectively Stream, desalted water and concentration saline.
The producing water ratio of EDR is up to more than 85%, if at system variation water quality, SO42-When content is higher, The most only need to add a little antisludging agent and still can ensure same producing water ratio, i.e. for inorganic salt fouling, EDR system There is self good cleaning performance.EDR system can arbitrarily be realized waste water by regulation voltage x current Different salt rejection rates, realizes circulating cooling water desalination easily, meets reuse water quality and quantity requirement. EDR resistance to chlorine residue ability is greatly enhanced, therefore can add antibacterial, it is ensured that system is not by germ contamination.Meanwhile, Owing to when electrodialysis runs, motive force is unidirectional current, microorganism is also had killing action.In a word, for micro- Biological and foundry loam class is polluted, and EDR system has self good cleaning performance.EDR system has well Self-cleaning effect, with desalting technology compare, significantly reduce the consumption of chemical agent, simultaneously can To avoid or to reduce the medicine such as acid adding or antisludging agent in waste water, it is at the environmentally friendly water of a kind of novelty Reason technology.
Embodiment 3
The present embodiment includes colleges and universities' depositing reservoir, DAF air-floating apparatus, middle pressure reverse osmosis unit, high pressure reverse osmosis Device, supertension reverse osmosis unit and dense water evaporated crystallization device thoroughly.
Super reverse osmosis concentrated with extraordinary diaphragm and special membrane structure as core of super concentration high-pressure membrane technology Contracting technology, GTR series membranes is wider than standard pollution-resistant membrane runner, blocks up more resistant to dirt, and diaphragm is more firm, can protect Card stable operation under high pollution, high concentration ratio, reduces cleaning frequency, extends the high-performance of film; It is divided into middle pressure GTR3 series, GTR4 series and import DTRO series, can be by the concentration segmentation of TDS Realize, middle pressure GTR3 film to more than 15000mg/L, high pressure GTR4 film to 45000mg/L with On, beneficially balance film efficiency and reduction energy consumption.One of core of this technology is extraordinary diaphragm, with routine Film is compared and can be born higher operation pressure, the tolerance float of higher concentration, colloid and COD, significantly Improve the rigors to influent quality index;In membrane structure, have employed broader runner, formed Accessible turbulent flow, slow down the fouling of film, it is ensured that long-term operation significantly.
Super concentration technique refer to select conventional pretreatment facility (such as softening, filtration etc.), use special Antipollution concentrate reverse osmosis membrane (middle pressure, high pressure, supertension reverse osmosis membrane), by optimize membranous system The response rate and operating condition, realize the concentration minimizing (concentrated solution of strong brine in a particular manner TDS can generally achieve 5%~10%), while playing the superiority of membranous system, reduce " zero-emission Put " investment of integrated artistic and operating cost.The great advantage of this technology is to utilize special membrane structure (wide Runner, material are special) make brackish water realize high power concentration under not undergoing phase transition;Open by using The wide runner design of formula, it supports flow guiding disc surface particular design, makes divided fluid stream uniform, and formed more Good turbulence effects, reduces film surface scale, pollution and the generation of concentration polarization phenomenon to the full extent, makes There is stronger antifouling property, Wastewater Pretreatment is required relatively low.This technology is at high saliferous at present The aspects such as waste water process, sewage " zero-emission " have realized breakthrough, possess industrialized condition.
Embodiment 4
The Large Embodiments system that the present embodiment testing equipment is made up of 3 40 forty equivalent unit 40s, respectively For pretreatment unit, double film+EDR unit and supertension membrane method unit, device itself can analyze turbidity, The index such as electrical conductivity, TDS, pH, SDI, embodiment device is the equipment completely system of advanced person, joins There are complete on-line monitoring instrument and robot control system(RCS), are scheduled that rational sample tap simultaneously.Each container divides Join as follows:
Container No.1: high efficiency clarification tank+filter element;
The double film unit of container No.2: ultrafiltration+reverse osmosis+EDR;
Container No.3: middle pressure+high pressure+supertension membrane method unit.
The present embodiment pretreatment unit includes high efficiency clarification tank+sand filtration, is positioned in container No.1, design Scale is 1m3/ h, the transformation in process of the test and upgrading, current disposal ability is 1.5m3/ h, Capital equipment and specification or performance parameter such as following table 1-1.
Table 1-1 efficient sedimentation tank and sand filtration unit essential equipment (UEE) table
(1) embodiment 1 sand filtration+ultrafiltration+reverse osmosis process: sewage enters film still to be needed to add sand filtration pretreatment Equipment, alleviates the operating pressure of ultrafiltration, increases the service life, and the big portion of part can be preferably removed in sand filtration Divide float, Organic substance and colloid.Ultrafilter membrane has the key property of pore structure, the most also has film table The chemical property in face.Ultrafiltration product water turbidity stabilizes to 0.09NTU not to be changed with the variation of influent turbidity, Ultrafiltration to turbidity removal rate averagely about 92%.Reverse osmosis produced water conductivity changes with water inlet change, In the case of pressure stability, the response rate is stable 75%, and salt rejection rate is stable more than 98%.
(2) embodiment 2 sand filtrations+ultrafiltration+EDR technique: sand filtration and ultrafiltration stable operation, ultrafiltration is to turbid Degree clearance is averagely about 92%, and when EDR controls the response rate 70% and 90%, salt rejection rate is all steady It is scheduled on more than 75%.
(3) the highly dense pond+sand filtration of embodiment 3+middle pressure reverse osmosis+high pressure reverse osmosis+supertension reverse osmosis work Skill:
High efficiency clarification tank device, has effectively played sodium carbonate/sodium hydroxide and has softened, reduces hardness, hangs The functions such as float colloid and turbidity, in the case of determining and suitably adding dose (sodium carbonate 435mg/L, Sodium hydroxide 450mg/L, PAC22.5mg/L, PAM1mg/L, hydrochloric acid 395mg/L), the most firmly Degree clearance more than 94%, each salt rejection rate of middle pressure, high pressure and supertension is respectively as follows: 96.3%, and 97.5%, 92.6%, average salt rejection rate 95%, each response rate of middle pressure, high pressure and supertension is respectively as follows: 80%, and 66.7%, 25%, flow process recycled in its entirety rate 95%.
(4) the highly dense pond+sand filtration of embodiment 4+middle pressure reverse osmosis+EDR technique: high efficiency clarification tank, sand Filter and middle pressure reverse osmosis are properly functioning, and middle pressure and each salt rejection rate of EDR are respectively as follows: 96.3%, and 92.5%, Average salt rejection rate 94.4%, middle pressure and each response rate of EDR be respectively as follows: 80%, and 69%, flow process entirety is returned Yield 95.2%.
It can be seen that each unit can be run by complete stability from data above conclusion, it is possible to effectively go Except in water most of soluble salt divide, float, colloid, hardness, basicity, COD, Organic substance And the reusing sewage two such as microorganism overlap technique produce water can directly replenishment cycles sewer or boiler chemical water station Processing unit, after the degree of depth softens, supplement boiler make-up water, dense water need to improve B/C ratio and give birth to Change processes.After two technological processes product water of high saliferous reverse osmosis concentrated water need two-pass reverse osmosis desalination, supplement and follow Ring sewer or boiler chemical water station processing unit, after the degree of depth softens, supplement boiler make-up water is dense The crystallizable evaporation of water.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can be at this Find out various solution under the inspiration of utility model disclosure, and these solutions also belong to this The open scope of utility model within falling into protection domain of the present utility model.Those skilled in the art should This is understood, this utility model description and accompanying drawing thereof are illustrative and not constitute the limit to claim System.Protection domain of the present utility model is limited by claim and equivalent thereof.

Claims (6)

1. a water treatment facilities, it is characterized in that, described device includes being provided with high efficiency clarification tank and sand filtering device, ultrafiltration apparatus and supertension reverse osmosis unit, wherein said high efficiency clarification tank connects sewage collecting box and described sand filtering device, described sand filtering device connects ultrafiltration apparatus, and described ultrafiltration apparatus connects supertension reverse osmosis unit;Described supertension reverse osmosis unit connects product water recycling device;Described high efficiency clarification tank includes coagulation unit, flocculation unit and precipitation clarification unit;Described ultrafiltration apparatus includes that ultrafilter membrane, the aperture of described ultrafilter membrane are 1~50nm;Described supertension reverse osmosis unit has microfilter.
2. water treatment facilities as claimed in claim 1, it is characterised in that described high efficiency clarification tank also includes lime cream haptoreaction unit.
3. water treatment facilities as claimed in claim 1, it is characterised in that the entrance of described high efficiency clarification tank arranges coagulant dosage unit.
4. water treatment facilities as claimed in claim 1, it is characterised in that the pore diameter range of the ultrafilter membrane of described ultra filtration unit is 1~50nm.
5. water treatment facilities as claimed in claim 1, it is characterised in that the aperture of described microfilter is 25 μm.
6. water treatment facilities as claimed in claim 1, it is characterised in that the length, width and height of described flocculation unit are respectively 0.7m, 0.7m and 1.85m.
CN201620523945.6U 2016-06-01 2016-06-01 Water treatment device Active CN205653272U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108191116A (en) * 2018-01-29 2018-06-22 中冶北方(大连)工程技术有限公司 Ore dressing plant water treatment system and water treatment technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108191116A (en) * 2018-01-29 2018-06-22 中冶北方(大连)工程技术有限公司 Ore dressing plant water treatment system and water treatment technology

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