CN109502871A - A kind of high-salinity wastewater zero-emission and divide salt resource utilization device - Google Patents
A kind of high-salinity wastewater zero-emission and divide salt resource utilization device Download PDFInfo
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- CN109502871A CN109502871A CN201910016373.0A CN201910016373A CN109502871A CN 109502871 A CN109502871 A CN 109502871A CN 201910016373 A CN201910016373 A CN 201910016373A CN 109502871 A CN109502871 A CN 109502871A
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- 150000003839 salts Chemical class 0.000 title claims abstract description 40
- 239000002351 wastewater Substances 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 215
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 239000013505 freshwater Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 65
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 51
- 238000001728 nano-filtration Methods 0.000 claims description 42
- 238000000909 electrodialysis Methods 0.000 claims description 35
- 239000011780 sodium chloride Substances 0.000 claims description 25
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 25
- 235000011152 sodium sulphate Nutrition 0.000 claims description 25
- 239000013535 sea water Substances 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 13
- 239000012475 sodium chloride buffer Substances 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 9
- 238000007710 freezing Methods 0.000 claims description 8
- 230000008014 freezing Effects 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 239000012452 mother liquor Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000007872 degassing Methods 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims 1
- 230000001934 delay Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000000872 buffer Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 238000005352 clarification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- PALNZFJYSCMLBK-UHFFFAOYSA-K magnesium;potassium;trichloride;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-].[Cl-].[K+] PALNZFJYSCMLBK-UHFFFAOYSA-K 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000015598 salt intake Nutrition 0.000 description 1
- 230000036186 satiety Effects 0.000 description 1
- 235000019627 satiety Nutrition 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/16—Purification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a kind of high-salinity wastewater zero-emission and divide salt resource utilization device, including raw water tank, the raw water tank is linked with reaction tank by the first water pump, clarifying basin and buffered water pond, the buffering pond is connected with the second water pump and third water pump by pipeline, the third water pump is communicated with inorganic ceramic film unit by pipeline, the inorganic ceramic film unit is communicated with resin pliable cell by pipeline, the resin pliable cell is communicated with production water pot by pipeline, the production water pot is communicated with the first cartridge filter by the 4th water pump, first cartridge filter is communicated with first-stage reverse osmosis unit by the 5th water pump, the fresh water mouth of the first-stage reverse osmosis unit is communicated with reuse water tank by pipeline, the high-salinity wastewater zero-emission realizes production water all reuses up to standard with the entire technical process for dividing salt resource utilization device, effectively High-salt wastewater treatment effeciency and effect are improved, environmental protection of enterprise and production cost are reduced.
Description
Technical field
The present invention relates to high-salt wastewater processing technology field, specially a kind of high-salinity wastewater zero-emission and divide salt recycling sharp
Use device.
Background technique
In current industrial production, high-salt wastewater is primarily referred to as industrial circulating water field sewerage and reverse osmosis unit water institute
The concentrated water of generation is the high-salinity wastewater zero-emission technology of many enterprises the problem of high-salinity wastewater zero-emission administers field face
Operating cost is higher, and process flow is complicated, and the concentrated water that recirculated cooling water field sewerage, reverse osmosis water producing device generate passes through zero
After drain facility processing, salt-mixture (carnallite) is largely produced, universal purity salt is not high, without recycling value, and
And according to existing environmental protection policy, handled, is disposed extremely difficult, it is easy to cause the secondary dirt of environment as " hazardous waste "
Dye.
The scheme that high-salt wastewater generallys use at present is mostly " the chemical tendering method+reverse osmosis+MVR of ultrafiltration+RO " technology path,
Being limited by factors, ultrafiltration, the reverse osmosis, MVR such as calcium ion is higher has higher fouling risk, not can guarantee the long period fortune of equipment
Row, system generates a large amount of salt-mixture (carnallite), the value not comprehensively utilized, and MVR method is a kind of mechanical vapor technology, mesh
It is preceding to be suitable for the lesser high-salt wastewater disposition of water, nor it is suitable for the processing of the biggish waste water of water, therefore using use
A kind of process is simple, operating cost is low, investment is lower, easy to operate, equipment is reliable and adaptation to local conditions serves industrial metaplasia
The waste water zero-discharge technology of production has very strong realistic meaning,.
Summary of the invention
The purpose of the present invention is to provide a kind of high-salinity wastewater zero-emission and divide salt resource utilization device, it is above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of high-salinity wastewater zero-emission and dividing salt recycling
Using device, including raw water tank, the raw water tank is linked with reaction tank, clarifying basin and buffered water pond by the first water pump, described
It buffers pond and the second water pump and third water pump is connected with by pipeline, the third water pump is communicated with inorganic ceramic membrane by pipeline
Unit, the inorganic ceramic film unit are communicated with resin pliable cell by pipeline, and the resin pliable cell is connected by pipeline
It is connected with production water pot, the production water pot is communicated with the first cartridge filter by the 4th water pump, and first cartridge filter passes through
5th water pump is communicated with first-stage reverse osmosis unit, and the fresh water mouth of the first-stage reverse osmosis unit is communicated with recycle-water by pipeline
Case, the clarification bottom of pond portion are equipped with sedimentation basin, and the sedimentation basin is communicated with plate and frame filter press by pipeline；
The concentrated water spout of the first-stage reverse osmosis unit is communicated with level-one concentrated water case by pipeline, and the level-one concentrated water case passes through the 6th
Water pump is communicated with the second cartridge filter, and second cartridge filter is connected to selective nanofiltration by the 7th water pump and salt is divided to fill
It sets, the selectivity nanofiltration divides the fresh water mouth of salt device to be communicated with nanofiltration water producing tank by pipeline, and the nanofiltration water producing tank passes through
8th water pump is communicated with third cartridge filter, and the third cartridge filter is communicated with sea-water reverse osmose list by the 9th water pump
The fresh water mouth of member, the sea-water reverse osmose unit is communicated with reuse water tank by pipeline, and the sea-water reverse osmose unit passes through pipe
Road is communicated with sodium chloride buffer tank, and the sodium chloride buffer tank is communicated with sodium chloride electrodialysis cell by the tenth water pump, described
The fresh water mouth of sodium chloride electrodialysis cell is communicated with nanofiltration water producing tank, the concentrated water spout of the sodium chloride electrodialysis cell by pipeline
MVR mechanical vapor unit is communicated with by pipeline.
Preferably, another outlet of the inorganic ceramic film unit is connected to reaction tank and third water pump by reflux line
Entrance, the flow for being connected to reaction tank is Q3, and the flow of second water pump and third water pump is respectively Q1 and Q2, and Q1:
Q2:Q3=10:50:1。
Preferably, the inorganic ceramic film unit is 19 hole tubular types, and filtering accuracy is 0.1um.
Preferably, the clarification bottom of pond portion is equipped with sedimentation basin, and the sedimentation basin is communicated with plate and frame filter press by pipeline.
Preferably, the fresh water mouth of the sea-water reverse osmose unit is communicated with reuse water tank by pipeline.
Preferably, the fresh water mouth of the sodium chloride electrodialysis cell is communicated with nanofiltration water producing tank by pipeline.
Preferably, the selective nanofiltration divides the concentrated water spout of salt device by feeling to be communicated with nanofiltration concentrated water case, described to receive
Filter concentrated water case is communicated with the 4th cartridge filter by the 11st water pump, and the 4th cartridge filter is connected by the 12nd water pump
It is connected with anti-pollution reverse-osmosis unit, the concentrated water spout of the anti-pollution reverse-osmosis unit is communicated with freezing unit buffering by pipeline
Tank, the freezing unit surge tank are communicated with DTB continuous coo1ing process system by the 13rd water pump.
Preferably, the fresh water mouth of the anti-pollution reverse-osmosis unit is by being communicated with reuse water tank in pipeline.
Preferably, the mother liquor mouth of the DTB continuous coo1ing process system is communicated with advanced oxidation tower by the 14th water pump,
The advanced oxidation tower is communicated with tubular ceramic membrane module by the 15th water pump, and the tubular ceramic membrane module is connected by pipeline
It is connected with sodium sulphate electrodialysis surge tank, the sodium sulphate electrodialysis surge tank is communicated with sodium sulphate electrodialysis by the 16th water pump
The concentrated water spout of unit, the sodium sulphate electrodialysis cell is communicated with nanofiltration concentrated water case, the sodium sulphate electric osmose by pipeline
The fresh water mouth of analysis unit is communicated with sodium chloride buffer tank by pipeline.
Compared with prior art, the beneficial effects of the present invention are: the high-salinity wastewater zero-emission is filled with salt resource utilization is divided
The entire technical process set, which is realized, produces water all reuses up to standard, and sodium chloride, sodium sulfate salt separation degree are high, reach Nacl mark
Standard realizes wastewater zero discharge on a small quantity, and the recycling of salt produces the theoretical framework that water reuseization is high-efficient, is concentrated using multistage, will be single
Position cost control is minimum in current prior art, and using freezing extracting sulfuric acid sodium technology, sodium sulphate concentrated water is effectively reduced
Processing cost, using method of ceramic membrane as pretreatment filtration means, pretreatment unit process is greatly shortened, and it is single to reduce pretreatment
First occupied area and cost of investment can greatly simplify system flow in this way, further decrease operation difficulty, effectively improve with high salt
Waste water treatment efficiency and effect reduce environmental protection of enterprise and production cost.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is preliminary treatment flow chart of the invention；
Fig. 3 is sodium chloride process flow diagram of the invention；
Fig. 4 is sodium sulphate process flow diagram of the invention.
In figure: 1 raw water tank, 2 first water pumps, 3 reaction tanks, 4 clarifying basins, 5 buffering ponds, 6 second water pumps, 7 third water pumps,
8 inorganic ceramic film units, 9 reflux lines, 10 sedimentation basins, 11 plate and frame filter press, 12 resin pliable cells, 13 produce water pots, 14 the
Four water pumps, 15 first cartridge filters, 16 the 5th water pumps, 17 first-stage reverse osmosis units, 18 reuse water tanks, 19 level-one concentrated water casees,
20 the 6th water pumps, 21 second cartridge filters, 22 the 7th water pumps, 23 selective nanofiltrations divide salt device, 24 nanofiltration water producing tanks, 25 the
Eight water pumps, 26 third cartridge filters, 27 the 9th water pumps, 28 sea-water reverse osmose units, 29 sodium chloride buffer tanks, 30 the tenth water
Pump, 31 sodium chloride electrodialysis cells, 32 MVR mechanical vapor units, 33 nanofiltration concentrated water casees, 34 the 11st water pumps, 35 the 12nd water
Pump, 36 anti-pollution reverse-osmosis units, 37 freezing unit surge tanks, 38 the 13rd water pumps, 39 DTB continuous coo1ing process systems, 40
14th water pump, 41 advanced oxidation towers, 42 ground, 15 water pump, 43 tubular ceramic membrane modules, 44 sodium sulphate electrodialysis surge tanks, 45
16 water pump of ground, 46 sodium sulphate electrodialysis cells, 47 the 4th cartridge filters.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of high-salinity wastewater zero-emission and dividing salt resource utilization
Device, including raw water tank 1, raw water tank 1 is linked with reaction tank 3, clarifying basin 4 and buffered water pond 5 by the first water pump 2, wherein instead
It answers and the sodium hydroxide solution that 10% concentration of concentration is sodium carbonate liquor and concentration is 32% is added in pond 3, it can be with connecting inner calcium and magnesium
Example forms sediment, and ozone oxidation aeration structure is designed in clarifying basin 4, increases aeration uniformity, it is ensured that water outlet COD is not
Greater than 50mg/L, pond 5 is buffered by pipeline and is connected with the second water pump 6 and third water pump 7, third water pump 7 is connected to by pipeline
There is inorganic ceramic membrane unit 8, inorganic ceramic film unit 8 is communicated with resin pliable cell 12 by pipeline, using positive resin, weak acid
Bed resin and degassing tower soften waste water, are prior art construction, main purpose is to ensure that resin adsorption pretreated water
In remaining calcium and magnesium ion, reduce the hardness of waste water, and remove the basicity in water, it is ensured that subsequent technique system be not present calcium, magnesium
Ion, basicity interference, it is ensured that film concentration systems and crystallization operational safety simultaneously guarantee purity salt out, and resin pliable cell 12 is equipped with again
Raw system, the wherein subsequent sodium chloride electric drive film concentrate of sodium chloride regenerated liquid effective regeneration resin demineralizer and can save
About salt consumption ensure that the stable operation of system without increasing additional salinity to system, and resin pliable cell 12 is connected by pipeline
It is connected with and produces water pot 13, produce water pot 13 by the 4th water pump 14 and be communicated with the first cartridge filter 15, the first cartridge filter 15 is logical
It crosses the 5th water pump 16 and is communicated with first-stage reverse osmosis unit 17, the fresh water mouth of first-stage reverse osmosis unit 17 is communicated with reuse by pipeline
Water tank 18 can collect fresh water recycling, reduce production cost, improve environment protecting, and 4 bottom of clarifying basin is equipped with sedimentation basin
10, sedimentation basin 10 is communicated with plate and frame filter press 11 by pipeline, and calcium carbonate, the calcium hydroxide precipitation of the low formation of clarifying basin 4 enter
Sedimentation basin 10, is handled subsequently between desliming, and plate and frame type filter-press 11 is used between desliming；
The concentrated water spout of first-stage reverse osmosis unit 17 is communicated with level-one concentrated water case 19 by pipeline, and level-one concentrated water case 19 passes through the 6th water
Pump 20 is communicated with the second cartridge filter 21, and the second cartridge filter 21 is connected to selective nanofiltration by the 7th water pump 22 and divides salt
Device 23, nanofiltration film surface band specific charge, has significantly different current potential to the ion of different charges and different valence state, thus
The ion of different valence state is set to separate, this system makes the sodium chloride of monovalence most using selective nanofiltration separation dedicated film
It possibly penetrating, and the sodium sulphate of divalent is allowed to be retained in concentrated water, progress tentatively divides salt treatment, while dividing salt, sodium sulphate
Side solution has carried out initial concentration, and salt content concentration reaches 5% or so, chloride ion sodium chloride side salt content concentration 0.8% or so,
But in sodium chloride side sulfate ion content less than the 1% of whole ion concentration, the operation more secure and reliable of nanofiltration membrane system,
When film device is stopped transport, auto-flushing 3-5 minutes, to remove the dirt for being deposited on film surface, there is device and nanofiltration membrane
Effect maintenance, selective nanofiltration divide the fresh water mouth of salt device 23 to be communicated with nanofiltration water producing tank 24 by pipeline, and nanofiltration water producing tank 24 is logical
It crosses the 8th water pump 25 and is communicated with third cartridge filter 26, it is anti-that third cartridge filter 26 by the 9th water pump 27 is communicated with seawater
The fresh water mouth of permeation unit 28, sea-water reverse osmose unit 28 is communicated with reuse water tank 18, sea-water reverse osmose unit 28 by pipeline
It is communicated with sodium chloride buffer tank 29 by pipeline, sodium chloride buffer tank 29 is communicated with sodium chloride electrodialysis list by the tenth water pump 30
Member 31, the fresh water mouth of sodium chloride electrodialysis cell 31 is communicated with nanofiltration water producing tank 24, sodium chloride electrodialysis cell 31 by pipeline
Concentrated water spout MVR mechanical vapor unit 32 is communicated with by pipeline.
Another outlet of inorganic ceramic film unit 8 is connected to reaction tank 3 and third water pump 7 by reflux line 9, and flow is
The flow of Q3, the second water pump 6 and third water pump 7 is respectively Q1 and Q2, and Q1:Q2:Q3=1:5:10.
Inorganic ceramic film unit 8 is 19 hole tubular types, and filtering accuracy is 0.1um.
Selective nanofiltration divides the concentrated water spout of salt device 23 to be communicated with nanofiltration concentrated water case 33 by feeling, nanofiltration concentrated water case 33 is logical
It crosses the 11st water pump 34 and is communicated with the 4th cartridge filter 47, the 4th cartridge filter 47 is communicated with anti-by the 12nd water pump 35
Reverse osmosis units 36 are polluted, the concentrated water spout of anti-pollution reverse-osmosis unit 36 is communicated with freezing unit surge tank 37 by pipeline, cold
Freeze unit surge tank 37 and DTB continuous coo1ing process system 39 is communicated with by the 13rd water pump 38, DTB continuous coo1ing technique is 39
System process be with principle, after sodium sulphate feed liquid mix with circulation fluid by feed pump by feed pipe, after exchanging heat and cooling down by
Circulating pump is sent to DTB crystallizer, the ring under the promotion of circulating pump and agitating paddle, between guide shell and crystallizer outer wall
Shape channel flow to floating zone upper layer, and supersaturated solution is grown after mixing with a large amount of crystal seeds, is then inhaled into guide shell again
Lower end forms inner cycle channel, with higher rate iterative cycles, is sufficiently mixed feed liquid, ensure that satiety everywhere in device
Relatively uniform with spending, degree of supercooling is lower, greatly enhances the production capacity of crystallizer, and crystallizer is divided by cylindrical baffle
Crystal growth area and settling section, the clarified mother liquor at top by axial-flow pump cycle heat exchange, magma by crystalliser feet discharging pump
Discharge, is centrifuged, and is used as product after crystal product is dry.
The fresh water mouth of anti-pollution reverse-osmosis unit 36 is by being communicated with reuse water tank 18 in pipeline.
The mother liquor mouth of DTB continuous coo1ing process system 39 is communicated with advanced oxidation tower 41 by the 14th water pump 40, advanced
Oxidizing tower 41 is communicated with tubular ceramic membrane module 43 by the 15th water pump 42, and tubular ceramic membrane module 43 is communicated with by pipeline
Sodium sulphate electrodialysis surge tank 44, sodium sulphate electrodialysis surge tank 44 are communicated with sodium sulphate electrodialysis list by the 16th water pump 45
Member 46, the concentrated water spout of sodium sulphate electrodialysis cell 46 is communicated with nanofiltration concentrated water case 33, sodium sulphate electrodialysis cell 46 by pipeline
Fresh water mouth sodium chloride buffer tank 29 is communicated with by pipeline.
The electrodialysis diaphragm that sodium sulphate electrodialysis cell 46 and sodium chloride electrodialysis cell 31 use is homogeneous ion exchange
Film is the prior art, repeats no more.
The present invention is in the specific implementation: high-salt wastewater enters raw water tank 1, then sequentially enters reaction by the first water pump 2
Sodium carbonate and sodium hydroxide is wherein added in pond 3, clarifying basin 4, buffer pool 5 in reaction tank 3, adjust waste water PH to 11-12, passes through
After reaction tank completes chemical reaction, the gravity flow of the low portion in autoreaction pond 3 enters clarifying basin 4, and waste water completes nature after carrying out clarifying basin 4
Infall process, calcium carbonate that after chemical reaction generates, calcium hydroxide form precipitating, and natural subsidence to bottom of pond, waste water is from clarification
The gravity flow of 4 top of pond enters buffer pool 5, and waste water calcium ion is not more than 50mg/L in buffer pool at this time, 20-30 DEG C of temperature, then gives up
Water is sent into the entrance of third water pump 7 from clarifying basin 5 by the second water pump 6, and then inorganic ceramic film unit 8 filters, the control of the second water pump 6
Operating pressure processed is 0.10MPa, and it is 0.4MPa that third water pump 7, which controls pressure, and inorganic ceramic film unit 8 controls water flow inside flow velocity
For 3.5m/s, turbulent flow is formed using high flow rate, prevents system jams and fouling, and by hydrochloric acid and inorganic ceramic film unit
8 production water is mixed by pipe-line mixer, and mixer outlet installs online PH meter, and the PH of waste water is 7-8 after control mixing,
Subsequently into resin pliable cell 12, the production aquatic products water gravity flow after softening, which enters, produces water pot 13, then is pressurizeed by the 4th water pump 14
Into first-stage reverse osmosis unit 17, under the action of pump exports 1.0-1.3MPa pressure, most of moisture is through reverse osmosis
Film, 97% or more salt removal rate become after collecting and produce water, carry out reuse into reuse water tank 18, while most of high in water
Valence salinity remains in concentrated water, and the concentrated water of generation enters in level-one concentrated water case 19, then passes through the 6th water pump 20 and the 7th water pump
22, which enter selective nanofiltration, divides in salt device 23, water production control rate 60%, operating pressure 0.7-0.8MPa, selective nanofiltration point
The production water of salt device 23 enters nanofiltration water producing tank 24, stores the monovalence sodium chloride solution of transmission, and selective nanofiltration divides salt device 23
Concentrated water enter nanofiltration concentrated water case 33, storage has carried out the metabisulfite solution of initial concentration, completes separation, and separation degree is high,
Effect is good, and then, the waste water of nanofiltration water producing tank 24 enters sea-water reverse osmose unit 28 by the 9th water pump 27, wherein the 9th water pump
27 use plunger pump, control of export pressure 4-5MPa, and 28 water production control rate of sea-water reverse osmose unit is 90%, sea-water reverse osmose list
The fresh water that member 28 generates enters reuse water tank 18, and the concentrated water that sea-water reverse osmose unit 28 generates enters sodium chloride buffer tank 29,
It is sent into sodium chloride electrodialysis cell 31 by the tenth water pump 30 again, the fresh water that sodium chloride electrodialysis cell 31 produces water enters nanofiltration
Water producing tank 24, and the concentrated water that sodium chloride electrodialysis cell 31 generates enters MVR mechanical vapor unit 32, generates byproduct chlorination
The waste water of sodium, nanofiltration concentrated water case 33 enters anti-pollution reverse-osmosis unit 36, pump control of export pressure by the 12nd water pump 35
1.0-1.2MPa, 36 water production control rate of anti-pollution reverse-osmosis unit are 70%, and the fresh water that anti-pollution reverse-osmosis unit generates enters back
With water tank 18, the concentrated water that anti-pollution reverse-osmosis unit 36 generates enters freezing unit surge tank 37, then passes through the 13rd water pump 38
It is sent into DTB continuous coo1ing process system, after treatment, sodium sulphate is crystallized out from solution in a manner of crystal, is carried out
Removing, obtaining byproduct is sal glauberi, and separation degree is high, rationally utilizes resource.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of high-salinity wastewater zero-emission and dividing salt resource utilization device, including raw water tank (1), it is characterised in that: the original
Water pot (1) is linked with reaction tank (3), clarifying basin (4) and buffered water pond (5), the buffering pond (5) by the first water pump (2)
It is connected with the second water pump (6) and third water pump (7) by pipeline, the third water pump (7) is communicated with inorganic ceramic by pipeline
Film unit (8), the inorganic ceramic film unit (8) are communicated with resin pliable cell (12) by pipeline, and the resin softening is single
First (12) are communicated with by pipeline and produce water pot (13), and the production water pot (13) is communicated with first by the 4th water pump (14) and ensured public security
Filter (15), first cartridge filter (15) is communicated with first-stage reverse osmosis unit (17) by the 5th water pump (16), described
The fresh water mouth of first-stage reverse osmosis unit (17) is communicated with reuse water tank (18) by pipeline, and clarifying basin (4) bottom is equipped with heavy
Shallow lake pond (10), the sedimentation basin (10) are communicated with plate and frame filter press (11) by pipeline；
The concentrated water spout of the first-stage reverse osmosis unit (17) is communicated with level-one concentrated water case (19), the level-one concentrated water case by pipeline
(19) it is communicated with the second cartridge filter (21) by the 6th water pump (20), second cartridge filter (21) passes through the 7th water
Pump (22) is connected to selective nanofiltration and divides salt device (23), and the selectivity nanofiltration divides the fresh water mouth of salt device (23) to pass through pipeline
It is communicated with nanofiltration water producing tank (24), the nanofiltration water producing tank (24) is communicated with third cartridge filter by the 8th water pump (25)
(26), the third cartridge filter (26) is communicated with sea-water reverse osmose unit (28) by the 9th water pump (27), the seawater
The fresh water mouth of reverse osmosis units (28) is communicated with reuse water tank (18) by pipeline, and the sea-water reverse osmose unit (28) passes through pipe
Road is communicated with sodium chloride buffer tank (29), and the sodium chloride buffer tank (29) is communicated with sodium chloride electric osmose by the tenth water pump (30)
It analyses unit (31), the fresh water mouth of the sodium chloride electrodialysis cell (31) is communicated with nanofiltration water producing tank (24) by pipeline, described
The concentrated water spout of sodium chloride electrodialysis cell (31) is communicated with MVR mechanical vapor unit (32) by pipeline.
2. a kind of high-salinity wastewater zero-emission according to claim 1 and dividing salt resource utilization device, it is characterised in that: institute
It states another outlet of inorganic ceramic film unit (8) and is connected to entering for reaction tank (3) and third water pump (7) by reflux line (9)
Mouthful, the flow for being connected to reaction tank (3) is Q3, and the flow of second water pump (6) and third water pump (7) is respectively Q1 and Q2,
And Q1:Q2:Q3=10:50:1.
3. a kind of high-salinity wastewater zero-emission according to claim 1 and dividing salt resource utilization device, it is characterised in that: institute
Stating inorganic ceramic film unit (8) is 19 hole tubular types, and filtering accuracy is 0.1um.
4. a kind of high-salinity wastewater zero-emission according to claim 1 and dividing salt resource utilization device, it is characterised in that: institute
Stating resin pliable cell (12) includes resin cation, weak acid bed resin and degassing tower.
5. a kind of high-salinity wastewater zero-emission according to claim 1 and dividing salt resource utilization device, it is characterised in that: institute
It states first-stage reverse osmosis unit (17) and sea-water reverse osmose unit (28) is all made of Tao Shi RO reverse osmosis membrane.
6. a kind of high-salinity wastewater zero-emission according to claim 1 and dividing salt resource utilization device, it is characterised in that: institute
Stating selective nanofiltration divides the concentrated water spout of salt device (23) by feeling to be communicated with nanofiltration concentrated water case (33), the nanofiltration concentrated water case
(33) the 4th cartridge filter (47) is communicated with by the 11st water pump (34), the 4th cartridge filter (47) passes through the tenth
Two water pumps (35) are communicated with anti-pollution reverse-osmosis unit (36), and the concentrated water spout of the anti-pollution reverse-osmosis unit (36) passes through pipeline
It is communicated with freezing unit surge tank (37), the freezing unit surge tank (37) is communicated with DTB company by the 13rd water pump (38)
Continuous cooling process system (39).
7. a kind of high-salinity wastewater zero-emission according to claim 6 and dividing salt resource utilization device, it is characterised in that: institute
The fresh water mouth of anti-pollution reverse-osmosis unit (36) is stated by being communicated with reuse water tank (18) in pipeline.
8. a kind of high-salinity wastewater zero-emission according to claim 6 and dividing salt resource utilization device, it is characterised in that: institute
The mother liquor mouth for stating DTB continuous coo1ing process system (39) is communicated with advanced oxidation tower (41) by the 14th water pump (40), described
Advanced oxidation tower (41) is communicated with tubular ceramic membrane module (43) by the 15th water pump (42), the tubular ceramic membrane module
(43) sodium sulphate electrodialysis surge tank (44) is communicated with by pipeline, the sodium sulphate electrodialysis surge tank (44) passes through the 16th
Water pump (45) is communicated with sodium sulphate electrodialysis cell (46), and the concentrated water spout of the sodium sulphate electrodialysis cell (46) is connected by pipeline
It is connected with nanofiltration concentrated water case (33), the fresh water mouth of the sodium sulphate electrodialysis cell (46) is communicated with sodium chloride by pipeline and delays
Rush tank (29).
9. a kind of high-salinity wastewater zero-emission according to claim 1 or 8 and dividing salt resource utilization device, feature exists
It is handed in the electrodialysis diaphragm that: the sodium sulphate electrodialysis cell (46) and sodium chloride electrodialysis cell (31) use for homogeneous ion
Change film.
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