CN109205879A - A kind of high-salt wastewater treatment process softening plant and System and method for - Google Patents
A kind of high-salt wastewater treatment process softening plant and System and method for Download PDFInfo
- Publication number
- CN109205879A CN109205879A CN201710513004.3A CN201710513004A CN109205879A CN 109205879 A CN109205879 A CN 109205879A CN 201710513004 A CN201710513004 A CN 201710513004A CN 109205879 A CN109205879 A CN 109205879A
- Authority
- CN
- China
- Prior art keywords
- level
- super
- softening plant
- plant
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000010802 sludge Substances 0.000 claims abstract description 35
- 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 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 14
- 150000001768 cations Chemical class 0.000 claims abstract description 14
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 14
- 230000023556 desulfurization Effects 0.000 claims abstract description 14
- 238000005189 flocculation Methods 0.000 claims abstract description 14
- 230000016615 flocculation Effects 0.000 claims abstract description 14
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 14
- 239000011734 sodium Substances 0.000 claims abstract description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- 230000003750 conditioning effect Effects 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 230000007774 longterm Effects 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 12
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 230000008929 regeneration Effects 0.000 claims description 9
- 238000011069 regeneration method Methods 0.000 claims description 9
- 230000001954 sterilising effect Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 229910052681 coesite Inorganic materials 0.000 claims description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229910052682 stishovite Inorganic materials 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 229910052905 tridymite Inorganic materials 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 3
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 3
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 3
- 239000010808 liquid waste Substances 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 3
- 125000001741 organic sulfur group Chemical group 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 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 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000002699 waste material Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/763—Devices for the addition of such compounds in gaseous form
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of high-salt wastewater treatment process softening plant and System and method for, this system mainly includes desulfurization process device, circulating water treatment device, boiler feedwater pretreatment device, raw water conditioning tank, electric flocculation device, the super softening plant of level-one, the super softening plant of second level, ozone equipment, ultraviolet device, filter, weak acid cation bed, sodium bed, cartridge filter, NF device, HIRO device, electrolysis unit, purifying plant, recycle device, super flocculant, hydrogen gas recovering device；For the operation steady in a long-term for guaranteeing this process system, it further include related matched cleaning device, chemicals dosing plant, electrical system and instrument control, sludge with generation separately recycles, the production water reuse (treatment weak acid cation bed of NF, sodium bed, and the generation concentrated water of HIRO after electrolysis unit by recycling.Shorten system flow, each byproduct recycles and reuses, saves the advantages that effluent part investment and operation processing cost, solves the problems, such as that current high-salinity wastewater zero-emission encounters.
Description
Technical field
The present invention relates to high-salt wastewaters to handle environmental technology field, and in particular to a kind of high-salt wastewater treatment process softening dress
It sets and System and method for.
Background technique
China's rapid economic development at present, the huge consumption of the simultaneous energy, environmental problem are also got worse.In order to
Current environment situation is set to be improved, country is also increasingly tighter to the management of the three wastes, and zero discharge of industrial waste water is numerous enterprises
Received with professional occurrences in human life, while gradual beginning is implemented in industrial circle.And water is essential as industrial circle
Resource, the discharge of the strong brine environmental protection index important as one after concentration.The zero-emission that China industrial wastewater field is implemented,
Especially in thermal power plant, critical issue is that desulfurization wastewater operating cost and cost of investment are too high, and lack stable operation warp
It tests, is now exploring how to test and finding more stable processing method and operating cost compared with low technical.
Present patent application integrally considers a kind of high-salt wastewater treatment process softening plant and System and method for, will be with high salt
Waste water integrally considers that for the waste water for generating desulphurization system after softening, the sludge generated is CaCO with power plant desulphurization system3
With Mg (OH)2, two kinds of byproducts, which can separate, to be recycled；After supernatant after softening softens again, produces water and enter NF device
A point salt treatment is carried out, part produces the renewable weak acid cation bed of water and sodium bed, and it is dense again that the production water of other NF devices enters HIRO progress
Water, concentrated water enter electrolysis unit, and product is recycled.
It is that embrane method+evaporative crystallization and fume afterheat evaporate two kinds that the country common at present, which was explored with the experimental stage,
Embrane method has positive infiltration and high pressure reverse osmosis, and flue residue heat evaporation is divided into before deduster to be sprayed after spray and deduster.Fume afterheat
Steaming generation is carnallite, and possible next stage can be influenced by environmental protection policy, and embrane method+evaporative crystallization, softens reagent cost
It is excessively high, it runs and overhauls and is more demanding.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, a kind of high-salt wastewater treatment process softening plant and system and side are provided
Method.
In view of the above problem of the prior art, according to an aspect of the present invention, in order to solve the above technical problems, this
Invention use a kind of high-salt wastewater treatment process softening plant and System and method for, this system mainly include desulfurization process device,
Circulating water treatment device, boiler feedwater pretreatment device, raw water conditioning tank, electric flocculation device, the super softening plant of level-one, two
The super softening plant of grade, ozone equipment, ultraviolet device, filter, weak acid cation bed, sodium bed, cartridge filter, NF device,
HIRO device, electrolysis unit, purifying plant, recycle device, super flocculant, hydrogen gas recovering device；To guarantee this technique
The operation steady in a long-term of system further includes related matched cleaning device, chemicals dosing plant, electrical system and instrument control, spy
Sign is:
(1) it in technique recycling system, is aerated in raw water conditioning tank, after removing part COD, squeezes into electric wadding by pump
Solidifying device generates flocculation reaction by electric flocculation device.Subsequently into the super softening plant of level-one；
(2) caustic soda, super flocculant, organic sulfur, soda ash is added to the differential responses case of the super softening plant of level-one and helps solidifying
Agent makes the pH value of water be maintained at 9 ~ 10, makes heavy metal precipitation, Ca2+Generate CaCO3Sludge, with removal part SiO2, it main
Reaction equation are as follows:
Ca2++CO3 2-─→CaCO3
HCO3 -+OH+─→H2O
This sludge is recycled and is discharged two kinds using sludge reflux in the super softening plant of level-one, and sludge reflux is super from level-one
First reaction chamber that the sludge settling case of softening plant is back to the super softening plant of level-one can when concentration reaches 3 ~ 10
Filter press, mud cake outward transport are drained into, pressing filtering liquid is back to first reaction chamber of the super softening plant of level-one.
(3) supernatant of the super softening plant of level-one is to the super softening plant of second level, not to the super softening plant of second level
With caustic soda, super flocculant are added in region, the pH value of water is made to be maintained at 11 ~ 12, generated Mg (OH)2Precipitating, it is surplus with removal
Remaining SiO2, its key reaction formula are as follows:
Mg2++2OH+─→Mg(OH)2
Secondary sludge is recycled and is discharged two kinds using sludge reflux in the super softening plant of level-one, and sludge reflux is from super softening
First reaction chamber that the sludge settling case of device is back to the super softening plant of second level can be drained into when concentration reaches 3 ~ 10
Sludge can also be returned the progress of desulfurization process device and SO by filter press, mud cake recoverable2Reaction, pressing filtering liquid are back to second level
First reaction chamber of super softening plant.
(4) the super softening plant of second level be equipped with ozone equipment, ultraviolet device, supernatant by sterilization after,
Filtered in filter, by weak acid cation bed, sodium bed softening after, then ultraviolet device sterilization after, by cartridge filter into
Enter NF device, NF device carries out a point salt treatment, and concentrated water is mainly Mg2+、Ca2+、SO42-, producing water side is mainly NaCl.Concentrated water can be returned
Also desulfurization process device, can also be with the sludge Mg (OH) in the super softening plant of second level2Reaction generates MgSO4。
(5) the production water of NF device enters NF water producing tank, and producing moisture is to utilize at three, and weak acid cation bed, sodium bed are used at one
Regeneration, antisludging agent is added in when regeneration, and regeneration liquid waste enters the super softening plant of level-one；Second part can enter HIRO device,
After the concentration of HIRO device, produces water and recycles, concentrated water enters electrolysis unit, and reaction chamber is as follows:
4NaCL+16H2O─→2ClO2+2O3+Cl2+H2O2+12H2+4NaOH
Four kinds of gases such as ClO2, O3, Cl2, H2O2 are generated in anode chamber, H2, NaOH are generated in cathode chamber, in the gas that anode generates
Sterilization that body portion enters circulating water treatment device and boiler feedwater pretreatment device carries out disinfection, after pressurization bottling can also being carried out
Outward transport can also generate NaClO2 with NaOH and then transport outward, and reaction is 2ClO2+H2O2+2NaOH=2NaClO2+2H2O+O2, raw
At product enter recycle device and carry out packaging utilization, H2 enters hydrogen gas recovering device after entering purifying plant；
Ozone equipment and ultraviolet device carry out catalysis oxidation to waste water COD and bacterium in the process of running, and COD is reduced to
10mg/L or less.
Compared with prior art, of the invention to be advantageous in that:
(1) through electric flocculation device, through level-one, the super softening plant of second level, the dirt generated after being aerated in waste water raw water conditioning tank
Mud is CaCO3With Mg (OH)2, two kinds of byproducts, which can separate, to be recycled；
(2) the super softening plant of second level is equipped with ozone equipment, ultraviolet device is sterilized；
(3) concentrated water that special separation film generates directly is back to desulphurization system, directly and SO2Gypsum is generated, desulphurization system is saved
Lime stone；
(4) weak acid cation bed, sodium bed regeneration NF device produce water, save medicament and save effluent part investment and operation processing simultaneously
Cost；
(5) concentrated water that HIRO device generates enters electrolysis unit, and the byproduct generated is comprehensively utilized.
(6) each unit can independent operating, regulating power is stronger；
Process flow is relatively short, reduces investment outlay and operating cost.
Detailed description of the invention
Illustrate present specification embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the reference to embodiments some in present specification, for those skilled in the art, what is do not made the creative labor
In the case of, other attached drawings can also be obtained according to these attached drawings, used after can also being adjusted to certain a part therein.
Fig. 1 shows high-salt wastewater treatment process softening plant and System and method for according to an embodiment of the invention
Structural schematic diagram.In figure, (101) desulfurization process device, (102) raw water conditioning tank, (103) electric flocculation device, (104) level-one are super
Grade softening plant, the super softening plant of (105) second level, (106) ozone equipment, (107) ultraviolet device, (108) filter,
(109) weak acid cation bed, (110) sodium bed, (111) cartridge filter, (112) NF device, (113) HIRO, (114) electrolysis unit,
(115) recycle device, (116) purifying plant, (117) hydrogen gas recovering device, (118) super flocculant, (119) recirculated water
Processing unit, (120) boiler feedwater pretreatment device.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Fig. 1 shows high-salt wastewater treatment process softening plant and System and method for according to an embodiment of the invention,
Including desulfurization process device (101), raw water conditioning tank (102), electric flocculation device (103), the super softening plant of level-one (104),
The super softening plant of second level (105), ozone equipment (106), ultraviolet device (107), filter (108), weak acid cation bed
(109), sodium bed (110), cartridge filter (111), NF device (112), HIRO (113), electrolysis unit (114), recycling
Device (115), purifying plant (116), hydrogen gas recovering device (117), super flocculant (118), circulating water treatment device
(119), boiler feedwater pretreatment device (120).
In order to realize zero discharge of industrial waste water with high salt, this high-salt wastewater treatment process recycling system and method master
It is divided into five steps to realize, passes through each device in pipeline and pump attachment system.
Step 1: desulfurization process device (101) produces the desulfurization wastewater of water, into being aerated in raw water conditioning tank (102),
After removing part COD, electric flocculation device (103) are squeezed by pump, generate flocculation reaction by electric flocculation device (103).Then into
Enter the super softening plant of level-one (104)；
Step 2: caustic soda, super flocculant (118), organic is added to the differential responses case of the super softening plant of level-one (104)
Sulphur, soda ash and flocculation aid make the pH value of water be maintained at 9 ~ 10, make heavy metal precipitation, Ca2+Generate CaCO3Sludge, with removal part
SiO2, its key reaction formula are as follows:
Ca2++CO3 2-─→CaCO3
HCO3 -+OH+─→H2O
This sludge is recycled and is discharged two kinds using sludge reflux in the super softening plant of level-one (104), and sludge reflux is from level-one
The sludge settling case of super softening plant (104) is back to first reaction chamber of the super softening plant of level-one (104), works as concentration
When reaching 3 ~ 10, filter press, mud cake outward transport can be drained into, pressing filtering liquid is back to first reaction of the super softening plant of level-one (104)
Case.
Step 3: the supernatant of the super softening plant of level-one (104) to the super softening plant of second level (105) is super to second level
Caustic soda, super flocculant (118) are added in the different zones of grade softening plant (105), the pH value of water is made to be maintained at 11 ~ 12,
It generates Mg (OH)2Precipitating, with removal residue SiO2, its key reaction formula are as follows:
Mg2++2OH+─→Mg(OH)2
Secondary sludge is recycled and is discharged two kinds using sludge reflux in the super softening plant of second level (105), and sludge reflux is from second level
The sludge settling case of super softening plant (105) is back to first reaction chamber of the super softening plant of second level (105), works as concentration
When reaching 3 ~ 10, filter press can be drained into, sludge can also be returned the progress of desulfurization process device and SO by mud cake recoverable2Instead
It answers, pressing filtering liquid is back to first reaction chamber of the super softening plant of second level (105).
Step 4: the super softening plant of second level (105) is equipped with ozone equipment (106), ultraviolet device (107), thereon
Clear liquid is after sterilization, the filtering in filter (108), after weak acid cation bed (109), sodium bed (110) softening, then ultraviolet light
Enter NF device (112) after device (107) sterilization, by cartridge filter (111), NF device (112) carries out a point salt treatment, dense
Water is mainly Mg2+、Ca2+、SO42-, producing water side is mainly NaCl.Concentrated water can return desulfurization process device (101), can also be with second level
Sludge Mg (OH) in super softening plant (105)2Reaction generates MgSO4。
Step 5: the production water of NF device (112) enters NF water producing tank, and producing moisture is to utilize at three, and weak acid is used at one
Antisludging agent is added in the regeneration of cation bed (109), sodium bed (110), when regeneration, and regeneration liquid waste enters the super softening plant of level-one (104)；
Second part can enter HIRO device (113), after HIRO device (113) concentration, produce water and recycle, concentrated water enters electrolysis
Device (114), reaction chamber is as follows:
4NaCL+16H2O─→2ClO2+2O3+Cl2+H2O2+12H2+4NaOH
Four kinds of gases such as ClO2, O3, Cl2, H2O2 are generated in anode chamber, H2, NaOH are generated in cathode chamber, in the gas that anode generates
Sterilization that body portion enters circulating water treatment device (119) and boiler feedwater pretreatment device (120) carries out disinfection, can also carry out
It is transported outward after pressurization bottling, NaClO2 can also be generated with NaOH and then transported outward, reaction is 2ClO2+H2O2+2NaOH=2NaClO2+
2H2O+O2, the product of generation enter recycle device (115) and carry out packaging utilization, and it is laggard that H2 enters purifying plant (115)
Enter hydrogen gas recovering device (116)；
Ozone equipment (106) and ultraviolet device (107) carry out catalysis oxidation to waste water COD and bacterium in the process of running, will
COD is reduced to 10mg/L or less.
For the operation steady in a long-term for guaranteeing this process system, realizes complete zero-emission, while product is utilized, further include
Related matched cleaning device, chemicals dosing plant, electrical system and instrument control participate in a kind of this high-salt wastewater treatment process system
And the operation of method.
" one embodiment " and " embodiment " for being spoken of in the present specification etc. refers to combining embodiment description
Specific features, structure or feature are included at least one embodiment generally described herein.It is multiple in the description
It is not centainly to refer to the same embodiment that statement of the same race, which occurs, in place.Furthermore, it is understood that describing one in conjunction with any embodiment
Specific features, structure perhaps feature when to be advocated is that this feature, structure or feature are realized in conjunction with other embodiments
Also it falls within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the variations and modifications of progress, to those skilled in the art, other purposes also be will be apparent.
Claims (1)
1. a kind of high-salt wastewater treatment process softening plant and System and method for, this apparatus and system mainly includes desulfurization process dress
It sets, circulating water treatment device, boiler feedwater pretreatment device, raw water conditioning tank, electric flocculation device, the super softening dress of level-one
It sets, the super softening plant of second level, ozone equipment, ultraviolet device, filter, weak acid cation bed, sodium bed, cartridge filter, NF dress
It sets, HIRO device, electrolysis unit, purifying plant, recycle device, super flocculant, hydrogen gas recovering device；To guarantee this work
The operation steady in a long-term of process system further includes that related matched cleaning device, chemicals dosing plant, electrical system and instrument control,
It is characterized in that:
(1) it in technique recycling system, is aerated in raw water conditioning tank, after removing part COD, squeezes into electric wadding by pump
Solidifying device generates flocculation reaction by electric flocculation device;
Subsequently into the super softening plant of level-one；
(2) caustic soda, super flocculant, organic sulfur, soda ash is added to the differential responses case of the super softening plant of level-one and helps solidifying
Agent makes the pH value of water be maintained at 9 ~ 10, makes heavy metal precipitation, Ca2+Generate CaCO3Sludge, with removal part SiO2, it main
Reaction equation are as follows:
Ca2++CO3 2-─→CaCO3
HCO3 -+OH+─→H2O;
This sludge is recycled and is discharged two kinds using sludge reflux in the super softening plant of level-one, and sludge reflux is super soft from level-one
First reaction chamber that the sludge settling case that makeup is set is back to the super softening plant of level-one can be arranged when concentration reaches 3 ~ 10
To filter press, mud cake outward transport, pressing filtering liquid is back to first reaction chamber of the super softening plant of level-one;
(3) supernatant of the super softening plant of level-one is to the super softening plant of second level, to the not same district of the super softening plant of second level
Caustic soda, super flocculant are added in domain, the pH value of water is made to be maintained at 11 ~ 12, generates Mg (OH)2Precipitating, it is remaining with removal
SiO2, its key reaction formula are as follows:
Mg2++2OH+─→Mg(OH)2
Secondary sludge is recycled and is discharged two kinds using sludge reflux in the super softening plant of second level, and sludge reflux is super from second level
First reaction chamber that the sludge settling case of softening plant is back to the super softening plant of second level can when concentration reaches 3 ~ 10
Filter press is drained into, sludge can also be returned the progress of desulfurization process device and SO by mud cake recoverable2Reaction, pressing filtering liquid are back to
First reaction chamber of the super softening plant of second level;
(4) the super softening plant of second level is equipped with ozone equipment and ultraviolet device, and supernatant is after sterilization, in the filter
Filtering, after weak acid cation bed, the softening of sodium bed, then after ultraviolet device sterilization, enter NF device by cartridge filter, NF dress
It sets and carries out a point salt treatment, concentrated water is mainly Mg2+、Ca2+、SO42-, producing water side is mainly NaCl;
Concentrated water can return desulfurization process device, can also be with the sludge Mg (OH) in the super softening plant of second level2Reaction generates MgSO4;
(5) the production water of NF device enters NF water producing tank, and producing moisture is to utilize at three, at one again for weak acid cation bed, sodium bed
Raw, antisludging agent is added in when regeneration, and regeneration liquid waste enters the super softening plant of level-one；Second part can enter HIRO device,
After the concentration of HIRO device, produces water and recycles, concentrated water enters electrolysis unit, and reaction chamber is as follows:
4NaCL+16H2O─→2ClO2+2O3+Cl2+H2O2+12H2+4NaOH
Four kinds of gases such as ClO2, O3, Cl2, H2O2 are generated in anode chamber, H2, NaOH are generated in cathode chamber, in the gas that anode generates
Sterilization that body portion enters circulating water treatment device and boiler feedwater pretreatment device carries out disinfection, after pressurization bottling can also being carried out
Outward transport can also generate NaClO2 with NaOH and then transport outward, and reaction is 2ClO2+H2O2+2NaOH=2NaClO2+2H2O+O2, raw
At product enter recycle device and carry out packaging utilization, H2 enters hydrogen gas recovering device after entering purifying plant；
Ozone equipment and ultraviolet device carry out catalysis oxidation to waste water COD and bacterium in the process of running, and COD is reduced to
10mg/L or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513004.3A CN109205879A (en) | 2017-06-29 | 2017-06-29 | A kind of high-salt wastewater treatment process softening plant and System and method for |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513004.3A CN109205879A (en) | 2017-06-29 | 2017-06-29 | A kind of high-salt wastewater treatment process softening plant and System and method for |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109205879A true CN109205879A (en) | 2019-01-15 |
Family
ID=64960477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710513004.3A Pending CN109205879A (en) | 2017-06-29 | 2017-06-29 | A kind of high-salt wastewater treatment process softening plant and System and method for |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109205879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115947464A (en) * | 2022-11-17 | 2023-04-11 | 中国环境科学研究院 | Desulfurization wastewater softening treatment system, and desulfurization wastewater softening control method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843927A (en) * | 2015-05-26 | 2015-08-19 | 中国华电工程(集团)有限公司 | Desulfurization waste water zero discharging process and system |
| CN204675945U (en) * | 2015-05-26 | 2015-09-30 | 中国华电工程(集团)有限公司 | Desulfurization wastewater Zero discharging system |
| CN105314773A (en) * | 2014-07-10 | 2016-02-10 | 王辛平 | Wet desulphurization wastewater recycling method and device |
| CN105347594A (en) * | 2015-12-01 | 2016-02-24 | 杭州水处理技术研究开发中心有限公司 | High-salinity wastewater zero emission and high-purity sodium chloride recovering system |
| CN105540977A (en) * | 2016-01-14 | 2016-05-04 | 中电环保股份有限公司 | Desulfurized waste water treatment method and system |
| CA2888538A1 (en) * | 2015-04-21 | 2016-10-21 | Hisham Younis | A non-selective and non-catalytic flue gas treatment system and method |
-
2017
- 2017-06-29 CN CN201710513004.3A patent/CN109205879A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314773A (en) * | 2014-07-10 | 2016-02-10 | 王辛平 | Wet desulphurization wastewater recycling method and device |
| CA2888538A1 (en) * | 2015-04-21 | 2016-10-21 | Hisham Younis | A non-selective and non-catalytic flue gas treatment system and method |
| CN104843927A (en) * | 2015-05-26 | 2015-08-19 | 中国华电工程(集团)有限公司 | Desulfurization waste water zero discharging process and system |
| CN204675945U (en) * | 2015-05-26 | 2015-09-30 | 中国华电工程(集团)有限公司 | Desulfurization wastewater Zero discharging system |
| CN105347594A (en) * | 2015-12-01 | 2016-02-24 | 杭州水处理技术研究开发中心有限公司 | High-salinity wastewater zero emission and high-purity sodium chloride recovering system |
| CN105540977A (en) * | 2016-01-14 | 2016-05-04 | 中电环保股份有限公司 | Desulfurized waste water treatment method and system |
Non-Patent Citations (2)
| Title |
|---|
| 李亚娟;申建汛;武忠全;许臻;黄倩;: "火电厂循环水排污水纳滤处理试验", 《热力发电》, vol. 45, no. 12, pages 142 * |
| 汪多仁: "《绿色净水处理剂》", 科学技术文献出版社, pages: 324 - 325 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115947464A (en) * | 2022-11-17 | 2023-04-11 | 中国环境科学研究院 | Desulfurization wastewater softening treatment system, and desulfurization wastewater softening control method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105502782B (en) | A kind of coal chemical industry coking wastewater water resource and salt recovery process | |
| CN106430786B (en) | Desulfurization wastewater treatment method and device | |
| CN103288236B (en) | Treatment method for salt-containing wastewater | |
| CN103755082B (en) | System and method for resource recovery of regenerated wastewater of ion exchange resin | |
| CN105314773A (en) | Wet desulphurization wastewater recycling method and device | |
| CN105060545A (en) | System and method for softening treatment of desulfurization wastewater of coal-fired power plant | |
| CN104743727A (en) | System and method for cooperatively removing mercury with desulfurization waste water | |
| CN107915354A (en) | A kind of desulfurization wastewater zero-emission and resource utilization device and method | |
| CN103553246A (en) | Device and method for softening hard water by using carbon dioxide in flue gas | |
| CN106630027A (en) | Method and system for treating high-chlorine desulfurization waste water by electrolytic method and performing flue gas mercury pollution control | |
| CN105502765B (en) | System and method for treating desulfurization wastewater and recycling resources cooperatively | |
| CN204550306U (en) | A kind of desulfurization wastewater works in coordination with the system of demercuration | |
| CN105858981A (en) | Quality-divided reclamation treatment device and process for strong brine | |
| CN111170524A (en) | Reverse osmosis concentrated water recycling method | |
| CN105481179A (en) | Concentrated salt sewage zero-discharge treatment method | |
| CN107151072B (en) | Treatment process of desulfurization wastewater | |
| CN103304072B (en) | Recycling method of industrial waste water | |
| CN109205879A (en) | A kind of high-salt wastewater treatment process softening plant and System and method for | |
| CN110937735A (en) | Coal-fired power plant desulfurization wastewater recycling treatment system and method | |
| CN105000745B (en) | A kind of sulfur Gas Fields produced water treatment system | |
| CN105174581B (en) | A kind of sulfur Gas Fields produced water treatment technique | |
| CN207537285U (en) | A kind of high-salt wastewater treatment process melded system | |
| CN103373774A (en) | Membrane-method high-powered recycling process for fluoride-containing wastewater generated by photovoltaic industry and dedicated system of membrane-method high-powered recycling process | |
| CN207537295U (en) | A kind of high-salt wastewater treatment process system | |
| JP4571086B2 (en) | Water purification equipment and treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Applicant after: Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Address before: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Applicant before: BEIJING LUCENCY ENVIRO-TECH Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190115 |