CN209368011U - Deposition vanadium mother liquid and wash water processing equipment for recycling - Google Patents
Deposition vanadium mother liquid and wash water processing equipment for recycling Download PDFInfo
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- CN209368011U CN209368011U CN201822245539.XU CN201822245539U CN209368011U CN 209368011 U CN209368011 U CN 209368011U CN 201822245539 U CN201822245539 U CN 201822245539U CN 209368011 U CN209368011 U CN 209368011U
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Abstract
The characteristics of the utility model relates to a kind of deposition vanadium mother liquids and wash water processing equipment for recycling, high ammonia nitrogen brine waste for deposition vanadium mother liquid and wash water containing heavy metal ion, high strength ammonium-chloride, high concentration sodium chloride and a small amount of metavanadic acid root；To the Centrifuge filtrate of low concentration, first with electrolytic oxidation and ultrafiltration heavy-metal ion removal and suspended matter, reduce COD value, secondly resin adsorption metavanadic acid radical ion is utilized, recycle vanadium resource, concentration decrement and purification finally are carried out using reverse osmosis, concentrated water decrement goes subsequent evaporation, the production water reuse of purification；And to the precipitation high ammonia-nitrogen wastewater of high concentration, most of calcium ion is precipitated first with soda ash, utilize electrolytic oxidation and ultrafiltration heavy-metal ion removal and suspended matter, reduce COD value, secondly resin adsorption metavanadic acid radical ion is utilized, vanadium resource is recycled, finally isolates ammonium chloride and sodium chloride using evaporative crystallization, it is back to use vanadium extraction production, condensed water is also able to reuse；Deposition vanadium mother liquid and wash water recycling treatment are achieved the purpose that.
Description
Technical field
The utility model relates to deposition vanadium mother liquids and wash water processing equipment for recycling, belong to the technology of Industrial Wastewater Treatment
Field.
Background technique
Vanadium is a kind of transition elements, atomic number 23, atomic weight 50.9.Vanadium is that have body-centered cubic in silver grey non-ferrous metal
Structure, 1890 ± 10 DEG C of fusing point, 3380 DEG C of boiling point.Vanadium possesses good physical property, stable chemical property and catalytic activity,
It is widely used in the fields such as metallurgy, steel, chemical industry, building materials, dyestuff, battery.
It is vanadium titano-magnetite and bone coal in the primary raw material of China, vanadium extraction, and the bone coal reserves in China are very rich, extensively
It is distributed in the ground such as Hunan, Hubei, Zhejiang, Jiangxi, Guangdong, Guangxi, Guizhou, Anhui, Henan, Shaanxi, Gansu.Vanadium master in bone coal
To exist with trivalent, most process for extracting vanadium will first be oxidized to 5 valences, be dissolved out with sodium metavanadate, ammonium chloride precipitation is then utilized,
Ammonium metavanadate is generated, vanadic anhydride can also be made with deamination.Currently, extracting vanadium from stone coal main technique has: low sodium roasts water logging work
Skill, calcium salt baking acid immersion technique, is exempted to roast direct dilute sulfuric acid technique blank baking acid immersion technique.
Here the vanadium extraction of water logging technique, production process are as follows: " ore is crushed to 0 .25 mm or less are roasted mainly for low sodium
→ doping be uniformly mixed → molding balling-up → reverberatory furnace oxidizing roasting → defibrination water logging → separation of solid and liquid → ion exchange →
Loaded resin desorption → stripping liquid removal of impurities → ammonium metavanadate precipitate/dehydration → deamination/vanadic anhydride product ".It is generated heavy
Vanadium mother liquid (also referred to as precipitation high ammonia-nitrogen wastewater) and wash water (also referred to as Centrifuge filtrate) are a kind of containing heavy metal ion, high concentration
The high ammonia nitrogen brine waste of ammonium chloride, high concentration sodium chloride and a small amount of metavanadic acid root, cannot such as be handled well, not only can be tight
Heavily contaminated environment also wastes nitrogen and vanadium resource.The precipitation that existing part is generated for the roasting water logging technique vanadium extraction of low sodium at present is useless
The patent of water handling reclamation, such as method of 201210130522.4 Leaching of Vanadium from Vanadium slag high-salt wastewater resource utilizations, main technique are
" vanadium extraction high-salt wastewater adds alkali removing calcium and magnesium and metal impurities ion, alkali ammonia still process, acid absorption ammonia, evaporative crystallization is further added to go out ammonium
Salt, deamination waste water re-evaporation crystallize out sodium salt, recycling condensing water "；He is using first ammonia still process, and then acid absorbs ammonia, evaporative crystallization
Ammonium salt out, then distilled ammonia wastewater evaporative crystallization is gone out into sodium salt, there are 3 evaporation processes here, operating cost is too high, and unrecovered inclined vanadium
Acid group, and waste vanadium resource.A kind of processing method of vanadium wastewater of another patent 201010574183.X, main technique are
" vanadium wastewater add alkali removing heavy metals, improve pH by ammonium ion be converted into ammonia, ammonia nitrogen seperation film deamination, sulfuric acid absorption output sulphur ammonium,
Reverse osmosis concentration goes out sodium sulphate, produces water reuse after deamination；First with film deamination, sulfuric acid absorption goes out sulphur ammonium, then sodium sulphate is concentrated out,
Also unrecovered metavanadic acid root.It is desirable to develop a kind of new deposition vanadium mother liquid and wash water resource treatment technique.
Summary of the invention
The utility model proposes a kind of deposition vanadium mother liquid and wash water processing equipment for recycling, purpose is intended to for low sodium
Roast water logging vanadium extraction generate deposition vanadium mother liquid (precipitation high ammonia-nitrogen wastewater) and wash water (Centrifuge filtrate) this one kind containing heavy metal from
Son, high strength ammonium-chloride, high concentration sodium chloride and a small amount of metavanadic acid root high ammonia nitrogen brine waste, dealing with improperly not only can be tight
Heavily contaminated environment also wastes nitrogen and the problem of vanadium resource.To the Centrifuge filtrate of low concentration, first with electrolytic oxidation and ultrafiltration
Heavy-metal ion removal and suspended matter reduce COD value, secondly utilize resin adsorption metavanadic acid radical ion, recycle vanadium resource, finally
Concentration decrement and purification are carried out using reverse osmosis, concentrated water decrement goes subsequent evaporation, the production water reuse of purification；Before processing, centrifugation
The COD value of machine filter liquid is 50~100mg/L, V5+(vanadium ion) value is 10~60mg/L, TDS value is 10000~20000mg/L,
After processing, COD value is 10~20mg/L, and the removal rate of COD reaches 80%, V5+(vanadium ion) value is 1~6mg/L, and vanadium ion returns
Yield reaches 90%, and the TDS value of concentrated water is 50000~100000mg/L, concentrates 4~6.6 times, and the TDS value for producing water is 100~
200mg/L produces water desalination rate and reaches 99%；And to the precipitation high ammonia-nitrogen wastewater of high concentration, most of calcium is precipitated first with soda ash
Ion and heavy metal ion reduce COD value, secondly utilize using electrolytic oxidation and ultrafiltration heavy-metal ion removal and suspended matter
Resin adsorption metavanadic acid radical ion recycles vanadium resource, finally isolates ammonium chloride and sodium chloride using evaporative crystallization, be back to use and mention
Vanadium production, condensed water are also able to reuse；Before processing, the Ca of precipitation high ammonia-nitrogen wastewater2+(calcium ion) value be 100~800mg/L,
COD value is 500~1000mg/L, V5+(vanadium ion) value is 100~600mg/L, after processing, Ca2+(calcium ion) value≤40mg/
L, Ca2+The removal rate of (calcium ion) reaches 60~95%, and COD value is 60~150mg/L, and the removal rate of COD reaches 85~88%, V5 +(vanadium ion) value is≤10mg/L, the rate of recovery >=90% of vanadium ion；The mesh of deposition vanadium mother liquid Yu wash water recycling treatment is reached
's.
The technical solution of the utility model: deposition vanadium mother liquid and wash water processing equipment for recycling, structure include centrifugation
Machine filter liquid pretreatment system PTS1, Centrifuge filtrate resins exchange system RS1, counter-infiltration system ROS, precipitation high ammonia-nitrogen wastewater it is pre-
Processing system PTS2, precipitation high ammonia-nitrogen wastewater resins exchange system RS2, evaporation and crystallization system VCS, vanadium stripping liquid storage send system
VLS；Wherein Centrifuge filtrate CMFL is connected to Centrifuge filtrate pretreatment system PTS1Water inlet, located in advance using Centrifuge filtrate
Reason system PTS1The heavy metal ion in Centrifuge filtrate is removed, COD value is reduced to < 20mg/L；Centrifuge filtrate pretreatment
System PTS1Backwash water out send out Centrifuge filtrate hyperfiltration reverse-rinsing drain SW to precipitation high ammonia-nitrogen wastewater pretreatment system PTS2
Backwash water inlet, Centrifuge filtrate pretreatment system PTS1Water outlet and Centrifuge filtrate resins exchange system RS1Water inlet
Mouth connects, and utilizes Centrifuge filtrate resins exchange system RS1Adsorb the metavanadic acid radical ion in Centrifuge filtrate, Centrifuge filtrate
Resins exchange system RS1The storage of liquid outlet and vanadium stripping liquid send the 1# inlet of system VLS to connect, system is sent in the storage of vanadium stripping liquid
The liquid outlet of VLS sends out vanadium stripping liquid (sodium metavanadate) VL, goes to the precipitation pond of vanadium extraction production system to carry out precipitation again, reaches back
Receive the purpose of vanadium resource；Centrifuge filtrate resins exchange system RS1Water outlet connect with the water inlet of counter-infiltration system ROS,
It will be pre-processed using counter-infiltration system ROS and decrement be concentrated with the Centrifuge filtrate after adsorption of vanadium, 4~6.6 times are concentrated, by its TDS
It is concentrated to 50000~100000mg/L, to reduce the expense of subsequent evaporation crystallization；The concentrated water of counter-infiltration system ROS, which exports, to be sent out
The 2# concentrated water import of reverse osmosis concentrated water ROCW to evaporation and crystallization system VCS, and counter-infiltration system ROS produces TDS≤200mg/ of water
L, meets reuse requirement, and the water outlet of counter-infiltration system ROS sends out recycle-water RUW；Precipitation high ammonia-nitrogen wastewater SVWW is connected to precipitation
High ammonia-nitrogen wastewater pretreatment system PTS21# water inlet, utilize precipitation high ammonia-nitrogen wastewater pretreatment system PTS2It is high to remove precipitation
COD value is reduced to≤150mg/L, Ca by the heavy metal ion in ammonia nitrogen waste water2+(calcium ion) is reduced to≤40mg/L；Precipitation
High ammonia-nitrogen wastewater pretreatment system PTS2Mud mouth send out mud cake SC, precipitation high ammonia-nitrogen wastewater pretreatment system PTS2Water outlet
Mouth and precipitation high ammonia-nitrogen wastewater resins exchange system RS2Water inlet connect, utilize precipitation high ammonia-nitrogen wastewater resins exchange system
RS2Adsorb the metavanadic acid radical ion in precipitation high ammonia-nitrogen wastewater, precipitation high ammonia-nitrogen wastewater resins exchange system RS2Liquid outlet with
The storage of vanadium stripping liquid send the 2# inlet of system VLS to connect；Precipitation high ammonia-nitrogen wastewater resins exchange system RS2Water outlet and evaporation
The inlet of crystal system VCS connects, will be by pre-processing and the high ammonia nitrogen of precipitation after adsorption of vanadium using evaporation and crystallization system VCS
Waste water evaporative crystallization simultaneously isolates the ammonium chloride of purity >=90% and the common salt of purity >=98%, all meets and wants to the reuse of salt
It asks, meanwhile, evaporative crystallization generates TDS value≤200mg/L of condensed water, also meets reuse requirement；Evaporation and crystallization system VCS's goes out
Salt mouth sends out crystal salt (ammonium chloride, common salt) Salt.As a result, deposition vanadium mother liquid and wash water processing equipment for recycling will be centrifuged machine filter
Liquid is handled respectively with precipitation high ammonia-nitrogen wastewater, has not only been recycled valuable metavanadic acid radical ion, has been recycled ammonium chloride, chlorination
It receives, will also produce water and recycling condensing water has arrived in the production of vanadium extraction, achieved the purpose that deposition vanadium mother liquid and wash water recycling treatment.
Here, OH(hydroxy radical is generated for using electrolytic oxidation) and ClO?Strong oxidizers such as (hypochlorites) come
Organic pollutant in oxidation reduces COD value.Its basic chemical equation is as follows:
2H2O → 2·OH + 2H+ + 2e?(1)
Organic matter+OH → CO2↑ + H2O (2)
Cl2 + H2O → ClO? + H+ + Cl?(3)
Organic matter+ClO-→ CO2↑ + H2O (4)
Divide salt for evaporative crystallization thermal method, be the difference that sodium chloride Yu ammonium chloride saturated concentration and temperature relation is utilized,
The solubility table of sodium chloride and ammonium chloride is as follows:
The solubility table (unit: g/100ml) of sodium chloride and ammonium chloride
It can be clearly seen from table, the saturated concentration variation with temperature of sodium chloride is little, and the saturation of ammonium chloride is dense
Degree variation with temperature is very big, can use the difference of the two, for example utilize forced-circulation evaporation, ceaselessly recycles at 100 DEG C
It is concentrated by evaporation, Crystallization Separation goes out sodium chloride, and when ammonium chloride is close to when being saturated, using cooling to 20 DEG C~40 DEG C, Crystallization Separation goes out
Then ammonium chloride enters back into the evaporation and crystal process of next evaporation and concentration, Crystallization Separation, in this way, available sodium chloride
Purity >=98%, purity of ammonia chloride >=90%.
Deposition vanadium mother liquid and wash water recycling processing method, include the following steps:
1) by Centrifuge filtrate pretreatment system, by the heavy metal ion and suspended matter removal, COD in Centrifuge filtrate
Value is reduced to < 20mg/L；
2) by Centrifuge filtrate resins exchange system, the metavanadic acid root in Centrifuge filtrate is adsorbed, inclined vanadium is desorbed
Sour sodium, and send system to send precipitation pond back to using the storage of vanadium stripping liquid, so that vanadium resource is recycled, the rate of recovery >=90%；
3) by counter-infiltration system, the Centrifuge filtrate after pretreatment and adsorption of vanadium is subjected to concentration decrement and purification, it is dense
4~6.6 times of contracting, is concentrated to 50000~100000mg/L for its TDS, to reduce the expense of subsequent evaporation crystallization；The production water of purification
TDS≤200mg/L, meet reuse requirement；
4) by precipitation high ammonia-nitrogen wastewater pretreatment system, by the heavy metal ion and suspended matter in precipitation high ammonia-nitrogen wastewater
Removal, and COD value is reduced to < 150mg/L, Ca2+Value is reduced to≤40mg/L；
5) by precipitation high ammonia-nitrogen wastewater resins exchange system, the metavanadic acid root in precipitation high ammonia-nitrogen wastewater is adsorbed, solution
Sodium metavanadate is sucked out, recycles vanadium resource, the rate of recovery >=90%；
6) evaporation and crystallization system is indicated by VCS, is evaporated crystallization thermal method and divides salt, isolates the chlorination of purity >=90%
The common salt of ammonium and purity >=98%, evaporative crystallization generate TDS value≤200mg/L of condensed water, and Yan Heshui has been obtained time
With.
The advantages of the utility model, the utility model deposition vanadium mother liquid and wash water processing equipment for recycling are female for precipitation
The high ammonia nitrogen saliferous of liquid and wash water containing heavy metal ion, high strength ammonium-chloride, high concentration sodium chloride and a small amount of metavanadic acid root is useless
The characteristics of water；To the Centrifuge filtrate of low concentration, first with electrolytic oxidation and ultrafiltration heavy-metal ion removal and suspended matter, drop
Low cod value, secondly utilize resin adsorption metavanadic acid radical ion, recycle vanadium resource, finally using it is reverse osmosis carry out concentration decrement with
Purification, concentrated water decrement go subsequent evaporation, the production water reuse of purification；And to the precipitation high ammonia-nitrogen wastewater of high concentration, first with
Soda ash precipitates most of calcium ion, using electrolytic oxidation and ultrafiltration heavy-metal ion removal and suspended matter, reduces COD value, secondly
Using resin adsorption metavanadic acid radical ion, vanadium resource is recycled, finally isolates ammonium chloride and sodium chloride, reuse using evaporative crystallization
It is produced to vanadium extraction, condensed water is also able to reuse；Deposition vanadium mother liquid and wash water recycling treatment are achieved the purpose that.
Detailed description of the invention
Attached drawing 1 is the general structure schematic diagram of deposition vanadium mother liquid Yu wash water processing equipment for recycling.
CMFL in attached drawing indicates that Centrifuge filtrate, RUW indicate that recycle-water, SVWW indicate precipitation high ammonia-nitrogen wastewater, Salt
Indicate (ammonium chloride, common salt) crystal salt, VL indicates vanadium stripping liquid (sodium metavanadate), and ROCW indicates that reverse osmosis concentrated water, VCW indicate
Evaporative crystallization condensate, SC indicate that mud cake, SW indicate the draining of Centrifuge filtrate hyperfiltration reverse-rinsing；PTS1Indicate Centrifuge filtrate pretreatment
System, RS1Indicate Centrifuge filtrate resins exchange system, ROS indicates counter-infiltration system, PTS2Indicate that precipitation high ammonia-nitrogen wastewater is pre-
Processing system, RS2Indicate precipitation high ammonia-nitrogen wastewater resins exchange system, VCS indicates evaporation and crystallization system, and VLS indicates vanadium desorption
System is sent in liquid storage.
Attached drawing 2 is the Centrifuge filtrate pretreatment system structural schematic diagram of deposition vanadium mother liquid Yu wash water processing equipment for recycling.
CMFL in attached drawing indicates that Centrifuge filtrate, SW indicate the draining of Centrifuge filtrate hyperfiltration reverse-rinsing, PT1Out indicate from
The water outlet of scheming filtrate pretreatment system；PTS1Indicate Centrifuge filtrate pretreatment system；T1Indicate Centrifuge filtrate case, EO1It indicates
Centrifuge filtrate electrolytic oxidation apparatus, UF1Indicate Centrifuge filtrate ultrafiltration apparatus, T2Indicate ultrafiltration water producing tank, D1Indicate centrifuge
Filtrate hydrochloric acid throwing device；P1Indicate Centrifuge filtrate booster pump, P2Indicate reverse osmosis water supply pump, P3Indicate that Centrifuge filtrate is super
Filter backwashing pump.
Attached drawing 3 is the precipitation high ammonia-nitrogen wastewater pretreatment system structural representation of deposition vanadium mother liquid Yu wash water processing equipment for recycling
Figure.
SVWW in attached drawing indicates that precipitation high ammonia-nitrogen wastewater, SC indicate that mud cake, SW indicate Centrifuge filtrate hyperfiltration reverse-rinsing row
Water, PT2Out indicates the water outlet of precipitation high ammonia-nitrogen wastewater pretreatment system；PTS2Indicate precipitation high ammonia-nitrogen wastewater pretreatment system；T3
Indicate that precipitation high ammonia-nitrogen wastewater case, ST indicate sedimentation basin, T4Indicate intermediate water tank, EO2Indicate precipitation high ammonia-nitrogen wastewater electrolytic oxidation
Device, UF2Indicate precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus, T5Indicate that high ammonia nitrogen concentrated water case, SD indicate sludge dewatering system, D2Table
Show soda ash and coagulant dosage device, D3Indicate precipitation high ammonia-nitrogen wastewater hydrochloric acid throwing device；P5Indicate that precipitation high ammonia-nitrogen wastewater increases
Press pump, P6Indicate intermediate delivery pump, P7Indicate VCS solution feed pump, P8Indicate precipitation high ammonia-nitrogen wastewater hyperfiltration reverse-rinsing pump, P9Indicate heavy
Vanadium high ammonia-nitrogen wastewater pretreatment system reflux pump.
Attached drawing 4 is that system knot is sent in the resins exchange system of deposition vanadium mother liquid and wash water processing equipment for recycling and the storage of vanadium stripping liquid
Structure schematic diagram.
RS in attached drawing1Indicate Centrifuge filtrate resins exchange system, RS2Indicate precipitation high ammonia-nitrogen wastewater resins exchange system
System, VLS indicate that system is sent in the storage of vanadium stripping liquid；PT1Out indicates the water outlet of Centrifuge filtrate pretreatment system, PT2Out indicates that precipitation is high
The water outlet of ammonia nitrogen waste water pretreatment system, RS1Out indicates the water outlet of Centrifuge filtrate resins exchange system, RS2Out indicates the high ammonia of precipitation
The water outlet of nitrogen waste water resins exchange system, VL indicate vanadium stripping liquid (sodium metavanadate)；D4Indicate the sodium chloride and chlorine of Centrifuge filtrate
Change ammonium throwing device, D5Indicate the sodium chloride and ammonium chloride throwing device of precipitation high ammonia-nitrogen wastewater, RST1Indicate Centrifuge filtrate tree
Rouge adsorption tanks, RST2Indicate that precipitation high ammonia-nitrogen wastewater resin adsorption tank, VLT indicate that sodium metavanadate desorbs liquid case；P10Indicate inclined vanadium
Sour sodium stripping liquid delivery pump.
Attached drawing 5 is counter-infiltration system and the evaporation and crystallization system structural representation of deposition vanadium mother liquid and wash water processing equipment for recycling
Figure.
ROS in attached drawing indicates that counter-infiltration system, VCS indicate evaporation and crystallization system；RS1Out indicates Centrifuge filtrate tree
The water outlet of Ester exchange system, RS2Out indicates the water outlet of precipitation high ammonia-nitrogen wastewater resins exchange system, and RUW indicates recycle-water, Salt table
Show crystal salt (ammonium chloride, common salt), ROCW indicates that reverse osmosis concentrated water, VCW indicate evaporative crystallization condensate；D6Indicate that antisludging agent is thrown
Feeder apparatus, SFF indicate that cartridge filter, RO indicate that reverse osmosis unit, VC indicate evaporated crystallization device, T6Indicate reuse water tank, T7
Indicate evaporative crystallization material feeding box；P11Indicate reverse osmosis high-pressure pump, P12Indicate reuse water pump, P13Indicate evaporative crystallization feed pump.
Attached drawing 6 is the water balance figure of deposition vanadium mother liquid Yu wash water processing equipment for recycling embodiment.
Specific embodiment
Attached drawing 1, deposition vanadium mother liquid and wash water processing equipment for recycling are compareed, structure includes Centrifuge filtrate pretreatment system
PTS1, Centrifuge filtrate resins exchange system RS1, counter-infiltration system ROS, precipitation high ammonia-nitrogen wastewater pretreatment system PTS2, precipitation
High ammonia-nitrogen wastewater resins exchange system RS2, evaporation and crystallization system VCS, vanadium stripping liquid storage send system VLS；Wherein Centrifuge filtrate
CMFL is connected to Centrifuge filtrate pretreatment system PTS1Water inlet, utilize Centrifuge filtrate pretreatment system PTS1Removal centrifugation
COD value is reduced to < 20mg/L by the heavy metal ion in machine filter liquid；Centrifuge filtrate pretreatment system PTS1Backwash water go out
Mouth sends out Centrifuge filtrate hyperfiltration reverse-rinsing and drains SW to precipitation high ammonia-nitrogen wastewater pretreatment system PTS2Backwash water inlet, centrifugation
Machine filter liquid pretreatment system PTS1Water outlet and Centrifuge filtrate resins exchange system RS1Water inlet connect, utilize centrifuge
Filtrate resins exchange system RS1Adsorb the metavanadic acid radical ion in Centrifuge filtrate, Centrifuge filtrate resins exchange system RS1's
Liquid outlet send the 1# inlet of system VLS to connect with the storage of vanadium stripping liquid, and the storage of vanadium stripping liquid send the liquid outlet of system VLS to send out vanadium solution
Imbibition (sodium metavanadate) VL, goes to the precipitation pond of vanadium extraction production system to carry out precipitation again, achievees the purpose that recycle vanadium resource；Centrifugation
Machine filter liquid resins exchange system RS1Water outlet connect with the water inlet of counter-infiltration system ROS, utilize counter-infiltration system ROS will
Decrement is concentrated in Centrifuge filtrate after pretreatment and adsorption of vanadium, is concentrated 4~6.6 times, its TDS is concentrated to 50000~
100000mg/L, to reduce the expense of subsequent evaporation crystallization；Send out reverse osmosis concentrated water ROCW in the concentrated water outlet of counter-infiltration system ROS
To the 2# concentrated water import of evaporation and crystallization system VCS, and counter-infiltration system ROS produces TDS≤200mg/L of water, meets reuse requirement,
The water outlet of counter-infiltration system ROS sends out recycle-water RUW；Precipitation high ammonia-nitrogen wastewater SVWW is connected to the pretreatment of precipitation high ammonia-nitrogen wastewater
System PTS21# water inlet, utilize precipitation high ammonia-nitrogen wastewater pretreatment system PTS2Remove the huge sum of money in precipitation high ammonia-nitrogen wastewater
Belong to ion, COD value is reduced to≤150mg/L, Ca2+(calcium ion) is reduced to≤40mg/L；The pretreatment of precipitation high ammonia-nitrogen wastewater
System PTS2Mud mouth send out mud cake SC, precipitation high ammonia-nitrogen wastewater pretreatment system PTS2Water outlet and the high ammonia nitrogen of precipitation it is useless
Water-resin exchange system RS2Water inlet connect, utilize precipitation high ammonia-nitrogen wastewater resins exchange system RS2Adsorb the high ammonia nitrogen of precipitation
Metavanadic acid radical ion in waste water, precipitation high ammonia-nitrogen wastewater resins exchange system RS2Liquid outlet and vanadium stripping liquid storage send system
The 2# inlet of VLS connects；Precipitation high ammonia-nitrogen wastewater resins exchange system RS2Water outlet and evaporation and crystallization system VCS into
Liquid mouth connects, will be by pre-processing with the precipitation high ammonia-nitrogen wastewater evaporative crystallization after adsorption of vanadium simultaneously using evaporation and crystallization system VCS
The ammonium chloride of purity >=90% and the common salt of purity >=98% are isolated, the reuse requirement to salt is all met, meanwhile, evaporation knot
Crystalline substance generates TDS value≤200mg/L of condensed water, also meets reuse requirement；The salt outlet of evaporation and crystallization system VCS sends out crystal salt
(ammonium chloride, common salt) Salt.As a result, deposition vanadium mother liquid and wash water processing equipment for recycling are by Centrifuge filtrate and the high ammonia nitrogen of precipitation
Waste water is handled respectively, has not only been recycled valuable metavanadic acid radical ion, has been recycled ammonium chloride, common salt, will also produce water with
Recycling condensing water has arrived in the production of vanadium extraction, has achieved the purpose that deposition vanadium mother liquid and wash water recycling treatment.
Compare attached drawing 2, Centrifuge filtrate pretreatment system PTS1, structure includes Centrifuge filtrate case T1, Centrifuge filtrate
Electrolytic oxidation apparatus EO1, Centrifuge filtrate ultrafiltration apparatus UF1, ultrafiltration water producing tank T2, Centrifuge filtrate hydrochloric acid throwing device D1, with
And Centrifuge filtrate booster pump P1, reverse osmosis water supply pump P2, Centrifuge filtrate hyperfiltration reverse-rinsing pump P3；Wherein Centrifuge filtrate CMFL
It is connected to Centrifuge filtrate case T1Water inlet, Centrifuge filtrate case T1Water outlet pass through Centrifuge filtrate booster pump P1With centrifugation
Machine filter liquid electrolytic oxidation apparatus EO1Water inlet connect, Centrifuge filtrate hydrochloric acid throwing device D1Medicine outlet also with centrifugation machine filter
Liquid electrolytic oxidation apparatus EO1Water inlet connect, Centrifuge filtrate electrolytic oxidation apparatus EO1Water outlet and Centrifuge filtrate it is super
Filter device UF1Water inlet connect, Centrifuge filtrate ultrafiltration apparatus UF1Water outlet and ultrafiltration water producing tank T2Water inlet connect,
Ultrafiltration water producing tank T2Backwash water out by Centrifuge filtrate hyperfiltration reverse-rinsing pump P3With Centrifuge filtrate ultrafiltration apparatus UF1It is anti-
Wash water import connects, Centrifuge filtrate ultrafiltration apparatus UF1Backwash water out send out Centrifuge filtrate hyperfiltration reverse-rinsing drain SW, surpass
Filter water producing tank T2Water outlet pass through reverse osmosis water supply pump P2It sends out Centrifuge filtrate pretreatment system and is discharged PT1out；Using from
Scheming filtrate electrolytic oxidation apparatus EO1The strong oxidizers such as the hypochlorite and hydroxy radical of generation degrade COD, go removing heavy metals from
Son, and utilize Centrifuge filtrate ultrafiltration apparatus UF1Part COD, suspended matter and heavy metal reactant are filtered out, COD value is reduced to
≤20mg/L。
Compare attached drawing 3, precipitation high ammonia-nitrogen wastewater pretreatment system PTS2, structure includes precipitation high ammonia-nitrogen wastewater case T3, it is heavy
Shallow lake pond ST, intermediate water tank T4, precipitation high ammonia-nitrogen wastewater electrolytic oxidation apparatus EO2, precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus UF2, high ammonia
Nitrogen concentrated water case T5, sludge dewatering system SD, soda ash and coagulant dosage device D2, precipitation high ammonia-nitrogen wastewater hydrochloric acid throwing device D3,
And precipitation high ammonia-nitrogen wastewater booster pump P5, intermediate delivery pump P6, evaporation and crystallization system solution feed pump P7, precipitation high ammonia-nitrogen wastewater it is super
Filter backwashing pump P8, precipitation high ammonia-nitrogen wastewater pretreatment system reflux pump P9；Wherein precipitation high ammonia-nitrogen wastewater SVWW is connected to the high ammonia of precipitation
Nitrogen waste water tank T3Water inlet, precipitation high ammonia-nitrogen wastewater case T3Water outlet pass through precipitation high ammonia-nitrogen wastewater booster pump P5With precipitating
The water inlet of pond ST connects, soda ash and coagulant dosage device D2Medicine outlet also connect with the water inlet of sedimentation basin ST, precipitate
The mud mouth of pond ST connects with the 1# mud inlet of sludge dewatering system SD, and it is de- that Centrifuge filtrate hyperfiltration reverse-rinsing draining SW is connected to sludge
The 3# mud inlet of water system SD carries out filters pressing using sludge dewatering system SD, separates dry mud and filtrate, sludge dewatering system SD's
Mud mouth sends out mud cake SC, and the liquid outlet of sludge dewatering system SD passes through precipitation high ammonia-nitrogen wastewater pretreatment system reflux pump P9It will
Filtrate sends precipitation high ammonia-nitrogen wastewater case T back to3Inlet；The water outlet and intermediate water tank T of sedimentation basin ST4Water inlet connect, in
Between water tank T4Water outlet pass through intermediate delivery pump P6With precipitation high ammonia-nitrogen wastewater electrolytic oxidation apparatus EO2Water inlet connect, sink
Vanadium high ammonia-nitrogen wastewater hydrochloric acid throwing device D3Medicine outlet also with precipitation high ammonia-nitrogen wastewater electrolytic oxidation apparatus EO2Water inlet phase
It connects, precipitation high ammonia-nitrogen wastewater electrolytic oxidation apparatus EO2Water outlet and precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus UF2Water inlet phase
It connects, precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus UF2Water outlet and high ammonia nitrogen concentrated water case T5Water inlet connect, high ammonia nitrogen concentrated water case
T5Backwash water out by precipitation high ammonia-nitrogen wastewater hyperfiltration reverse-rinsing pump P8With precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus UF2Backwash
Water inlet connects, precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus UF2Backwash water row's mouth be connected to the 2# mud inlet of sludge dewatering system SD,
High ammonia nitrogen concentrated water case T5Water outlet pass through evaporation and crystallization system solution feed pump P7Send out the water outlet of precipitation high ammonia-nitrogen wastewater pretreatment system
PT2 out；Here it is reacted by soda ash with calcium ion and generates precipitation of calcium carbonate and heavy metal hydroxide precipitating, utilize hydrochloric acid
It is neutrality by pH readjustment, and using electrolytic oxidation and ultra-filtration filters with heavy-metal ion removal, and COD value is reduced to≤
Calcium ion is reduced to≤40mg/L by 150mg/L.
Compare attached drawing 4, resins exchange system PTS1、PTS2System VLS is sent with the storage of vanadium stripping liquid, structure includes centrifuge
Filtrate resin adsorption tank RST1, precipitation high ammonia-nitrogen wastewater resin adsorption tank RST2, sodium metavanadate desorb liquid case VLT, Centrifuge filtrate
Sodium chloride and ammonium chloride throwing device D4, precipitation high ammonia-nitrogen wastewater sodium chloride and ammonium chloride throwing device D5, sodium metavanadate solution
Imbibition delivery pump P10；Wherein Centrifuge filtrate pretreatment system is discharged PT1Out is connected to Centrifuge filtrate resin adsorption tank RST1's
Water inlet, the sodium chloride and ammonium chloride throwing device D of Centrifuge filtrate4Medicine outlet and Centrifuge filtrate resin adsorption tank RST1
Feeding opening connect, Centrifuge filtrate resin adsorption tank RST1Liquid outlet and sodium metavanadate desorption liquid case VLT 1# inlet
Connect, Centrifuge filtrate resin adsorption tank RST1Water outlet send out Centrifuge filtrate resins exchange system be discharged RS1out；Precipitation
High ammonia-nitrogen wastewater pretreatment system is discharged PT2Out is connected to precipitation high ammonia-nitrogen wastewater resin adsorption tank RST2Water inlet, precipitation is high
The sodium chloride and ammonium chloride throwing device D of ammonia nitrogen waste water5Medicine outlet and precipitation high ammonia-nitrogen wastewater resin adsorption tank RST2Into medicine
Mouth connects, precipitation high ammonia-nitrogen wastewater resin adsorption tank RST2Liquid outlet and sodium metavanadate desorption liquid case VLT 2# inlet phase
It connects, precipitation high ammonia-nitrogen wastewater resin adsorption tank RST2Water outlet send out precipitation high ammonia-nitrogen wastewater resins exchange system water outlet
RS2out；The liquid outlet that sodium metavanadate desorbs liquid case VLT passes through sodium metavanadate stripping liquid delivery pump P10Send out vanadium stripping liquid (inclined vanadium
Sour sodium) VL；Here, adsorb metavanadic acid root using large pore anion resin, after resin saturation, using sodium hydroxide and sodium chloride into
Row desorption, obtains sodium metavanadate, then go precipitation, so that the vanadium resource being lost in waste water is recycled.
Attached drawing 5, counter-infiltration system ROS and evaporation and crystallization system VCS are compareed, structure includes cartridge filter SFF, reverse osmosis
Saturating device RO, reuse water tank T6, evaporative crystallization material feeding box T7, evaporated crystallization device VC, scale inhibitor feeding device D6And reverse osmosis
Saturating high-pressure pump P11, reuse water pump P12, evaporative crystallization feed pump P13；Wherein Centrifuge filtrate resins exchange system is discharged RS1out
It is connected to the water inlet of cartridge filter SFF, scale inhibitor feeding device D6Medicine outlet be also connected to the water inlet of cartridge filter SFF
Mouthful, the water outlet of cartridge filter SFF pumps P by reverse osmosis high-pressure11Connect with the water inlet of reverse osmosis unit RO, reverse osmosis dress
The concentrated water outlet for setting RO connects with the 2# inlet of evaporated crystallization device VC, the production water out and reuse water tank of reverse osmosis unit RO
T61# water inlet connect, reuse water tank T6Water outlet pass through reuse water pump P12Send out recycle-water RUW；Here with reverse osmosis
Centrifuge filtrate is subjected to concentration decrement, to reduce evaporation capacity, to reduce evaporation operating cost, while purified production water is returned
With；Precipitation high ammonia-nitrogen wastewater resins exchange system is discharged RS2Out is connected to evaporative crystallization material feeding box T71# inlet, evaporative crystallization
Material feeding box T7Liquid outlet pass through evaporative crystallization feed pump P13Connect with the inlet of evaporated crystallization device VC, evaporated crystallization device
Evaporative crystallization condensate VCW is connected to reuse water tank T by the water outlet of VC62# water inlet, the salt outlet of evaporated crystallization device VC send
Crystal salt (ammonium chloride, common salt) Salt out.It realizes and handles precipitation high ammonia-nitrogen wastewater and Centrifuge filtrate, production water, which is back to use, to be mentioned
The multiple production workshop sections of vanadium, ammonium chloride, sodium chloride also obtain reuse, while having recycled sodium metavanadate, have reached deposition vanadium mother liquid and have washed
The purpose of recycling of water resource processing.
Deposition vanadium mother liquid and wash water recycling processing method, include the following steps:
1) by Centrifuge filtrate pretreatment system, by the heavy metal ion and suspended matter removal, COD in Centrifuge filtrate
Value is reduced to < 20mg/L；
2) by Centrifuge filtrate resins exchange system, the metavanadic acid root in Centrifuge filtrate is adsorbed, inclined vanadium is desorbed
Sour sodium, and send system to send precipitation pond back to using the storage of vanadium stripping liquid, so that vanadium resource is recycled, the rate of recovery >=90%；
3) by counter-infiltration system, the Centrifuge filtrate after pretreatment and adsorption of vanadium is subjected to concentration decrement and purification, it is dense
4~6.6 times of contracting, is concentrated to 50000~100000mg/L for its TDS, to reduce the expense of subsequent evaporation crystallization；The production water of purification
TDS≤200mg/L, meet reuse requirement；
4) by precipitation high ammonia-nitrogen wastewater pretreatment system, by the heavy metal ion and suspended matter in precipitation high ammonia-nitrogen wastewater
Removal, and COD value is reduced to < 150mg/L, Ca2+Value is reduced to≤40mg/L；
5) by precipitation high ammonia-nitrogen wastewater resins exchange system, the metavanadic acid root in precipitation high ammonia-nitrogen wastewater is adsorbed, solution
Sodium metavanadate is sucked out, recycles vanadium resource, the rate of recovery >=90%；
6) evaporation and crystallization system is indicated by VCS, is evaporated crystallization thermal method and divides salt, isolates the chlorination of purity >=90%
The common salt of ammonium and purity >=98%, evaporative crystallization generate TDS value≤200mg/L of condensed water, and Yan Heshui has been obtained time
With.
The step 1) specifically utilizes Centrifuge filtrate electrolytic oxidation apparatus by Centrifuge filtrate pretreatment system
EO1The strong oxidizers such as the hypochlorite and hydroxy radical of generation degradation COD, heavy-metal ion removal, and utilize Centrifuge filtrate
Ultrafiltration apparatus UF1Part COD, suspended matter and heavy metal reactant are filtered out, COD value is reduced to≤20mg/ from 50~100mg/L
L。
The step 2 is by Centrifuge filtrate resins exchange system, specifically by the metavanadic acid root benefit in Centrifuge filtrate
It is adsorbed with large pore anion resin, after resin saturation, is desorbed using sodium hydroxide and sodium chloride, desorb metavanadic acid
Sodium, and send system to send precipitation pond back to using the storage of vanadium stripping liquid, so that vanadium resource is recycled, the rate of recovery >=90%.
Centrifuge filtrate after pretreatment and adsorption of vanadium is specifically utilized reverse osmosis by counter-infiltration system by the step 3)
Row concentration decrement and purification are penetrated into, is concentrated 4~6.6 times, its TDS is concentrated to 50000 from 10000~20000mg/L~
100000mg/L, to reduce the expense of subsequent evaporation crystallization；The TDS of the production water of purification is 100~200mg/L, meets reuse and wants
It asks, produces multiple workshop sections that water is back to use vanadium extraction production.
The step 4) specifically reacts generation with calcium ion using soda ash by precipitation high ammonia-nitrogen wastewater pretreatment system
Precipitation of calcium carbonate and heavy metal hydroxide precipitating, using hydrochloric acid by pH readjustment to be neutral, and utilize electrolytic oxidation and ultrafiltration
COD value is reduced to 60~150mg/L from 500~1000mg/L with heavy-metal ion removal by filtering, by Ca2+Value from 100~
800mg/L is reduced to≤40mg/L.
The step 5), specifically will be inclined in precipitation high ammonia-nitrogen wastewater by precipitation high ammonia-nitrogen wastewater resins exchange system
Vanadic acid root is adsorbed using large pore anion resin, after resin saturation, is desorbed, is desorbed using sodium hydroxide and sodium chloride
Sodium metavanadate out, and send system to send precipitation pond back to using the storage of vanadium stripping liquid, so that vanadium resource is recycled, the rate of recovery >=90%.
The step 6) indicates evaporation and crystallization system by VCS, specifically by the high ammonia of precipitation after pretreatment and adsorption of vanadium
The reverse osmosis concentrated water of nitrogen waste water and Centrifuge filtrate is evaporated crystallization, and isolates the ammonium chloride and purity of purity >=90%
>=98% common salt, evaporative crystallization generate TDS value≤200mg/L of condensed water, and common salt is roasted back to low sodium in vanadium extraction production
The burn plus agglomerating process of salt, ammonium chloride return to multiple works in vanadium extraction production back to precipitation process in vanadium extraction production, condensed water
Section.
Embodiment:
Certain Fan Ye company produces 600 tons of ammonium metavanadates per year using local Rock coal containing alum resource abundant, in the life of ammonium metavanadate
During production, bone coal adds sodium salt and water agglomerating through crushing, and carries out resin adsorption after sodium roasting, utilizes sodium chloride and sodium hydroxide
Desorption, stripping liquid add ammonium chloride and form ammonium metavanadate precipitate, finally utilize washing, centrifuge separation output ammonium metavanadate product.
During this, deposition vanadium mother liquid (also referred to as precipitation high ammonia-nitrogen wastewater) is with wash water (also referred to as Centrifuge filtrate) containing higher heavy
Metal, COD, TDS(are mainly ammonium chloride, sodium chloride), be a kind of high ammonia-nitrogen wastewater, such as handle it is bad, discharge to environment dirt
Dye is serious, and this project has carried out recycling treatment to it, while having recycled ammonium chloride, sodium chloride and recycle-water, achieve compared with
Good economic benefit and environmental benefit.
Design influent quality, water
Design water inlet has Centrifuge filtrate and precipitation high ammonia-nitrogen wastewater, and water quality indicator is as follows:
2. process flow
2.1 precipitation high ammonia-nitrogen sewage treatment systems
Vanadium wastewater → vanadium wastewater pond/elevator pump (soda ash, coagulant →)-→ sedimentation basin → intermediate water tank/UF is promoted
Pump-→ (hydrochloric acid →) electrolysis unit → ultrafiltration apparatus → (common salt, sodium hydroxide →) resin adsorption tank (→ vanadium desorption liquid case/
Desorb liquid pump → precipitation pond) → high ammonia nitrogen concentrated water case/delivery pump → evaporated crystallization device (the RO fresh-water tank that → condensate goes to (2.2))
→ ammonium chloride, sodium chloride
Wherein:
Sludge from sedimentation tank, hyperfiltration reverse-rinsing draining → sludge-tank/sludge delivery pump → sludge dehydration device → sludge outward transport；
Pressing filtering liquid → vanadium wastewater pond that sludge treatment equipment generates.
2.2 Centrifuge filtrate processing systems
Centrifuge filtrate → Centrifuge filtrate pond/elevator pump (hydrochloric acid →)-→ electrolysis unit → ultrafiltration apparatus → ultrafiltration produces
Water tank/RO booster pump → (common salt, sodium hydroxide →) resin adsorption tank (→ stripping liquid goes the vanadium of (2.1) to desorb liquid case)-→
(antisludging agent →) cartridge filter/high-pressure pump → RO device (→ concentrated water drainage to high ammonia nitrogen concentrated water case) → RO fresh-water tank/fresh water returns
With pumping → send to water spot
Wherein:
Hyperfiltration reverse-rinsing drains → goes the sludge-tank of (2.1).
Water balance
The water balance of Centrifuge filtrate and precipitation high ammonia-nitrogen wastewater processing item is provided referring to 6 deposition vanadium mother liquid of attached drawing and wash water
The water balance figure of source processing device embodiment.
Description of the process
4.1 precipitation high ammonia-nitrogen sewage treatment systems
Precipitation high ammonia-nitrogen wastewater enters the storage of precipitation high ammonia-nitrogen wastewater pond, is pressurized and enters through precipitation high ammonia-nitrogen wastewater elevator pump
Sedimentation basin adds soda ash, coagulant in sedimentation basin water inlet, and the calcium ion in water forms calcium carbonate through chemical reaction, goes through precipitating
It removes, sedimentation basin water outlet enters intermediate water tank, by entering electrolysis unit after the pressurization of UF elevator pump, after heavy-metal ion removal, enters
Ultrafiltration apparatus goes oil removal, colloid, partial organic substances etc. through hyperfiltration treatment, and ultrafiltration produces water and passes through resin adsorption tank adsorption of vanadium
Enter high ammonia nitrogen concentrated water case afterwards, be pumped to evaporated crystallization device through conveying and be evaporated crystallization, using thermal method separate ammonium chloride and
Sodium chloride.
Clarifier sludge and hyperfiltration reverse-rinsing drain into sludge-tank, are sent by sludge delivery pump to sludge dehydration device, filters pressing
Mud cake outward transport processing, pressing filtering liquid send back to vanadium wastewater pond reprocessing.
The condensate that evaporated crystallization device generates is sent to (Centrifuge filtrate processing system) RO water producing tank.
Resin container is desorbed using common salt, sodium hydroxide, is generated sodium metavanadate and is recycled to precipitation pond.
4.2 Centrifuge filtrate processing systems
Centrifuge filtrate enters the storage of Centrifuge filtrate pond, enters electrolysis unit through the pressurization of Centrifuge filtrate elevator pump and removes
After heavy metal ion, into ultrafiltration apparatus, oil removal, colloid, partial organic substances etc. are gone through hyperfiltration treatment, ultrafiltration produces water and enters
Ultrafiltration water producing tank, is introduced into resin adsorption tank absorption metavanadic acid root after the pressurization of RO booster pump, and ion exchange tail water enters security personnel
Filter, then enter the desalination of RO device, concentration through high-pressure pump pressurization, RO fresh water enters RO fresh-water tank, increases through fresh water reuse water pump
It is sent after pressure to water spot (TDS≤250mg/L).RO concentrated water enters (precipitation high ammonia-nitrogen sewage treatment system) high ammonia nitrogen concentrated water
Case carries out further evaporation and divides salt.Ultrafiltration is drained into (precipitation high ammonia-nitrogen sewage treatment system) sludge-tank, further takes off
Water process.It after ion exchange resin adsorption saturation, is eluted using NaCl and NaOH, recycles sodium metavanadate.
System main design parameters
5.1 civil engineerings:
5.2 capital equipments:
Claims (5)
1. deposition vanadium mother liquid and wash water processing equipment for recycling, it is characterized in that including Centrifuge filtrate pretreatment system (PTS1), centrifugation
Machine filter liquid resins exchange system (RS1), counter-infiltration system (ROS), precipitation high ammonia-nitrogen wastewater pretreatment system (PTS2), precipitation it is high
Ammonia nitrogen waste water resins exchange system (RS2), evaporation and crystallization system (VCS), vanadium stripping liquid storage send system (VLS)；Wherein centrifuge
Filtrate (CMFL) is connected to Centrifuge filtrate pretreatment system (PTS1) water inlet, Centrifuge filtrate pretreatment system (PTS1)
Backwash water out sends out Centrifuge filtrate hyperfiltration reverse-rinsing draining (SW) to precipitation high ammonia-nitrogen wastewater pretreatment system (PTS2) it is anti-
Wash water import, Centrifuge filtrate pretreatment system (PTS1) water outlet and Centrifuge filtrate resins exchange system (RS1) water inlet
Mouth connects, Centrifuge filtrate resins exchange system (RS1) the storage of liquid outlet and vanadium stripping liquid send the 1# inlet phase of system (VLS)
Connect, the storage of vanadium stripping liquid send the liquid outlet of system (VLS) to send out vanadium stripping liquid (VL), go the precipitation pond of vanadium extraction production system again into
Row precipitation；Centrifuge filtrate resins exchange system (RS1) water outlet connect with the water inlet of counter-infiltration system (ROS), reverse osmosis
Send out the 2# concentrated water import of reverse osmosis concentrated water (ROCW) to evaporation and crystallization system (VCS), reverse osmosis in the concentrated water outlet of permeable system (ROS)
The water outlet of permeable system (ROS) sends out recycle-water (RUW)；Precipitation high ammonia-nitrogen wastewater (SVWW) is connected to precipitation high ammonia-nitrogen wastewater and locates in advance
Reason system (PTS2) 1# water inlet, precipitation high ammonia-nitrogen wastewater pretreatment system (PTS2) mud mouth send out mud cake (SC), precipitation
High ammonia-nitrogen wastewater pretreatment system (PTS2) water outlet and precipitation high ammonia-nitrogen wastewater resins exchange system (RS2) water inlet phase
It connects, precipitation high ammonia-nitrogen wastewater resins exchange system (RS2) water outlet connect with the inlet of evaporation and crystallization system (VCS), steam
The salt outlet for sending out crystal system (VCS) sends out crystal salt.
2. deposition vanadium mother liquid according to claim 1 and wash water processing equipment for recycling, it is characterized in that the centrifugation machine filter
Liquid pretreatment system (PTS1), structure includes Centrifuge filtrate case (T1), Centrifuge filtrate electrolytic oxidation apparatus (EO1), centrifugation
Machine filter liquid ultrafiltration apparatus (UF1), ultrafiltration water producing tank (T2), Centrifuge filtrate hydrochloric acid throwing device (D1) and Centrifuge filtrate increasing
Press pump (P1), reverse osmosis water supply pump (P2), Centrifuge filtrate hyperfiltration reverse-rinsing pump (P3)；Wherein Centrifuge filtrate (CMFL) be connected to from
Scheming filtrate box (T1) water inlet, Centrifuge filtrate case (T1) water outlet pass through Centrifuge filtrate booster pump (P1) and centrifugation
Machine filter liquid electrolytic oxidation apparatus (EO1) water inlet connect, Centrifuge filtrate hydrochloric acid throwing device (D1) medicine outlet also with centrifugation
Machine filter liquid electrolytic oxidation apparatus (EO1) water inlet connect, Centrifuge filtrate electrolytic oxidation apparatus (EO1) water outlet and centrifugation
Machine filter liquid ultrafiltration apparatus (UF1) water inlet connect, Centrifuge filtrate ultrafiltration apparatus (UF1) water outlet and ultrafiltration water producing tank
(T2) water inlet connect, ultrafiltration water producing tank (T2) backwash water out by Centrifuge filtrate hyperfiltration reverse-rinsing pump (P3) and centrifugation
Machine filter liquid ultrafiltration apparatus (UF1) backwash water inlet connect, Centrifuge filtrate ultrafiltration apparatus (UF1) backwash water out send out from
Scheming filtrate hyperfiltration reverse-rinsing drains (SW), ultrafiltration water producing tank (T2) water outlet pass through reverse osmosis water supply pump (P2) send out centrifuge
Filtrate pretreatment system is discharged (PT1Out).
3. deposition vanadium mother liquid according to claim 1 and wash water processing equipment for recycling, it is characterized in that the high ammonia of the precipitation
Nitrogen waste water pretreatment system (PTS2), structure includes precipitation high ammonia-nitrogen wastewater case (T3), sedimentation basin ST, intermediate water tank (T4), it is heavy
Vanadium high ammonia-nitrogen wastewater electrolytic oxidation apparatus (EO2), precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus (UF2), high ammonia nitrogen concentrated water case (T5), it is dirty
Mud dewatering system SD, soda ash and coagulant dosage device (D2), precipitation high ammonia-nitrogen wastewater hydrochloric acid throwing device (D3) and precipitation
High ammonia-nitrogen wastewater booster pump (P5), intermediate delivery pump (P6), evaporation and crystallization system solution feed pump (P7), precipitation high ammonia-nitrogen wastewater ultrafiltration
Backwashing pump (P8), precipitation high ammonia-nitrogen wastewater pretreatment system reflux pump (P9)；Wherein precipitation high ammonia-nitrogen wastewater (SVWW) is connected to precipitation
High ammonia-nitrogen wastewater case (T3) water inlet, precipitation high ammonia-nitrogen wastewater case (T3) water outlet pass through precipitation high ammonia-nitrogen wastewater booster pump
(P5) connect with the water inlet of sedimentation basin (ST), soda ash and coagulant dosage device (D2) medicine outlet also with sedimentation basin (ST)
Water inlet connects, and the mud mouth of sedimentation basin (ST) connects with the 1# mud inlet of sludge dewatering system (SD), Centrifuge filtrate ultrafiltration
Backwash draining (SW) is connected to the 3# mud inlet of sludge dewatering system (SD), carries out filters pressing using sludge dewatering system (SD), separates
The mud mouth of dry mud and filtrate, sludge dewatering system (SD) sends out mud cake (SC), and the liquid outlet of sludge dewatering system (SD) passes through
Precipitation high ammonia-nitrogen wastewater pretreatment system reflux pump (P9) send filtrate back to precipitation high ammonia-nitrogen wastewater case (T3) inlet；Precipitating
The water outlet and intermediate water tank (T in pond (ST)4) water inlet connect, intermediate water tank (T4) water outlet pass through intermediate delivery pump
(P6) and precipitation high ammonia-nitrogen wastewater electrolytic oxidation apparatus (EO2) water inlet connect, precipitation high ammonia-nitrogen wastewater hydrochloric acid throwing device
(D3) medicine outlet also with precipitation high ammonia-nitrogen wastewater electrolytic oxidation apparatus (EO2) water inlet connect, precipitation high ammonia-nitrogen wastewater electrolysis
Oxidation unit (EO2) water outlet and precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus (UF2) water inlet connect, precipitation high ammonia-nitrogen wastewater
Ultrafiltration apparatus (UF2) water outlet and high ammonia nitrogen concentrated water case (T5) water inlet connect, high ammonia nitrogen concentrated water case (T5) backwash water go out
Mouth pumps (P by precipitation high ammonia-nitrogen wastewater hyperfiltration reverse-rinsing8) and precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus (UF2) backwash water inlet phase
It connects, precipitation high ammonia-nitrogen wastewater ultrafiltration apparatus (UF2) backwash water row's mouth be connected to the 2# mud inlet of sludge dewatering system (SD), high ammonia
Nitrogen concentrated water case (T5) water outlet pass through evaporation and crystallization system solution feed pump (P7) send out the water outlet of precipitation high ammonia-nitrogen wastewater pretreatment system
(PT2 Out).
4. deposition vanadium mother liquid according to claim 1 and wash water processing equipment for recycling, it is characterized in that the centrifugation machine filter
Liquid resins exchange system (RS1), precipitation high ammonia-nitrogen wastewater resins exchange system (RS2) stored up with vanadium stripping liquid and give system (VLS),
Structure includes Centrifuge filtrate resin adsorption tank (RST1), precipitation high ammonia-nitrogen wastewater resin adsorption tank (RST2), sodium metavanadate desorption
Liquid case (VLT), the sodium chloride of Centrifuge filtrate and ammonium chloride throwing device (D4), the sodium chloride of precipitation high ammonia-nitrogen wastewater and chlorination
Ammonium throwing device (D5), sodium metavanadate stripping liquid delivery pump (P10)；Wherein Centrifuge filtrate pretreatment system is discharged (PT1Out)
It is connected to Centrifuge filtrate resin adsorption tank (RST1) water inlet, the sodium chloride of Centrifuge filtrate and ammonium chloride throwing device (D4)
Medicine outlet and Centrifuge filtrate resin adsorption tank (RST1) feeding opening connect, Centrifuge filtrate resin adsorption tank (RST1)
Liquid outlet connects with the 1# inlet of sodium metavanadate desorption liquid case (VLT), Centrifuge filtrate resin adsorption tank (RST1) water outlet
Mouth sends out Centrifuge filtrate resins exchange system and is discharged (RS1Out)；Precipitation high ammonia-nitrogen wastewater pretreatment system is discharged (PT2Out)
It is connected to precipitation high ammonia-nitrogen wastewater resin adsorption tank (RST2) water inlet, sodium chloride and the ammonium chloride of precipitation high ammonia-nitrogen wastewater adds
Device (D5) medicine outlet and precipitation high ammonia-nitrogen wastewater resin adsorption tank (RST2) feeding opening connect, precipitation high ammonia-nitrogen wastewater tree
Rouge adsorption tanks (RST2) the 2# inlet of liquid outlet and sodium metavanadate desorption liquid case (VLT) connect, precipitation high ammonia-nitrogen wastewater tree
Rouge adsorption tanks (RST2) water outlet send out precipitation high ammonia-nitrogen wastewater resins exchange system be discharged (RS2Out)；Sodium metavanadate desorption
The liquid outlet of liquid case (VLT) passes through sodium metavanadate stripping liquid delivery pump (P10) send out vanadium stripping liquid (VL).
5. deposition vanadium mother liquid according to claim 1 and wash water processing equipment for recycling, it is characterized in that the reverse osmosis system
Unite (ROS) and evaporation and crystallization system (VCS), and structure includes cartridge filter (SFF), reverse osmosis unit (RO), reuse water tank
(T6), evaporative crystallization material feeding box (T7), evaporated crystallization device (VC), scale inhibitor feeding device (D6) and reverse osmosis high-pressure pump
(P11), reuse water pump (P12), evaporative crystallization feed pump (P13)；Wherein Centrifuge filtrate resins exchange system is discharged (RS1Out)
It is connected to the water inlet of cartridge filter (SFF), scale inhibitor feeding device (D6) medicine outlet be also connected to cartridge filter (SFF)
The water outlet of water inlet, cartridge filter (SFF) pumps (P by reverse osmosis high-pressure11) water inlet phase with reverse osmosis unit (RO)
It connects, the concentrated water outlet of reverse osmosis unit (RO) connects with the 2# inlet of evaporated crystallization device (VC), reverse osmosis unit (RO)
Produce water out and reuse water tank (T6) 1# water inlet connect, reuse water tank (T6) water outlet pass through reuse water pump (P12) send out
Recycle-water (RUW)；Precipitation high ammonia-nitrogen wastewater resins exchange system is discharged (RS2Out) it is connected to evaporative crystallization material feeding box (T7) 1# into
Liquid mouth, evaporative crystallization material feeding box T7Liquid outlet pass through evaporative crystallization feed pump (P13) with the inlet of evaporated crystallization device (VC)
Connect, evaporative crystallization condensate (VCW) is connected to reuse water tank (T by the water outlet of evaporated crystallization device (VC)6) 2# water inlet, steam
The salt outlet for sending out crystallization apparatus (VC) sends out crystal salt.
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| CN109437463A (en) * | 2018-12-29 | 2019-03-08 | 江苏卓博环保科技有限公司 | Coal calcination vanadium extraction high-salt wastewater advanced treatment and reclamation device and application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109437463A (en) * | 2018-12-29 | 2019-03-08 | 江苏卓博环保科技有限公司 | Coal calcination vanadium extraction high-salt wastewater advanced treatment and reclamation device and application method |
| CN109437463B (en) * | 2018-12-29 | 2023-09-12 | 江苏卓博环保科技有限公司 | Advanced treatment and recycling device for stone coal blank roasting vanadium extraction high-salt wastewater and using method |
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