CN107445341A - The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water - Google Patents
The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water Download PDFInfo
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- CN107445341A CN107445341A CN201710757759.8A CN201710757759A CN107445341A CN 107445341 A CN107445341 A CN 107445341A CN 201710757759 A CN201710757759 A CN 201710757759A CN 107445341 A CN107445341 A CN 107445341A
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- waste water
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- acid
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- 239000002351 wastewater Substances 0.000 title claims abstract description 154
- 238000004140 cleaning Methods 0.000 title claims abstract description 75
- 238000012545 processing Methods 0.000 title claims abstract description 62
- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 119
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical group OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 112
- 239000002253 acid Substances 0.000 claims abstract description 72
- 238000001556 precipitation Methods 0.000 claims abstract description 63
- 230000003647 oxidation Effects 0.000 claims abstract description 61
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 61
- 238000009833 condensation Methods 0.000 claims abstract description 46
- 230000005494 condensation Effects 0.000 claims abstract description 46
- 239000006228 supernatant Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 63
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 42
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 42
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 26
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 23
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 21
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 21
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 19
- 239000007800 oxidant agent Substances 0.000 claims description 17
- 230000001590 oxidative effect Effects 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 13
- 238000005189 flocculation Methods 0.000 claims description 13
- 230000016615 flocculation Effects 0.000 claims description 13
- 229920002521 macromolecule Polymers 0.000 claims description 13
- 239000003814 drug Substances 0.000 claims description 12
- 239000012286 potassium permanganate Substances 0.000 claims description 12
- 238000010306 acid treatment Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- 159000000013 aluminium salts Chemical class 0.000 claims description 6
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 6
- 159000000007 calcium salts Chemical class 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- 159000000003 magnesium salts Chemical class 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 159000000000 sodium salts Chemical class 0.000 claims description 6
- 238000005406 washing Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 description 8
- 238000006297 dehydration reaction Methods 0.000 description 8
- 229920002401 polyacrylamide Polymers 0.000 description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 3
- HDMGAZBPFLDBCX-UHFFFAOYSA-M potassium;sulfooxy sulfate Chemical compound [K+].OS(=O)(=O)OOS([O-])(=O)=O HDMGAZBPFLDBCX-UHFFFAOYSA-M 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- -1 but yield is larger Substances 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 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
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- KQPBSBAEBKRAAU-UHFFFAOYSA-N hypochlorous acid;sodium Chemical compound [Na].ClO KQPBSBAEBKRAAU-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 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
-
- 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
- C02F1/52—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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- 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
-
- 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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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 present invention relates to the integrated processing system and processing method of one kind of multiple power plant cleaning waste water, described integrated processing system includes the inlet pipeline of connection power plant washing waste water outlet, and it is sequentially connected except acid unit, precipitation unit, except EDTA units, advanced oxidation unit and decolouring unit, tie point is also drawn on described inlet pipeline, second branch road, 3rd branch road and the 4th branch road connect except acid unit respectively, precipitation unit, except EDTA units and advanced oxidation unit, described precipitation unit, except the bottom of EDTA units and decolouring unit is sequentially connected to sludge condensation unit and dewatering unit, the outlet of the apical supernatant fluid of sludge condensation unit and dewatering unit, which returns, connects the inlet pipeline, described inlet pipeline is additionally provided with stop valve between tie point and the second branch road.Compared with prior art, the integrated processing system that the present invention is combined using deacidification except EDTA advanced oxidations, a variety of power plant's cleaning waste water of efficient process, realizes purification and recycling of waste water etc..
Description
Technical field
The present invention relates to sewage treatment area, more particularly, to the integrated processing system of one kind of multiple power plant cleaning waste water
With processing method.
Background technology
Due to the fast development of current domestic industry, all trades and professions are also more and more big to the demand of electric power resource, and domestic
Power plant is still based on thermal power generation.The increase of power generation load needs boiler of power plant periodic maintenance cleaning to ensure generating set
Safe and efficient stable operation.The cleaning method of boiler of power plant has many kinds, and typical clean flow is water pre-flush, then acid cleaning
With complexing agent clean in one kind or combine progresss, then again water rinse, finally be passivated clean.Therefore behavior is once cleaned
Caused waste water mainly includes flushing water, pickling waste waters and passivating wastewater.The amount of flushing waste water is very big but pollutant concentration is relatively low,
It is more disposable.Pickling waste waters and the usual merging treatment of passivating wastewater, the effluent part pollutant concentration is very high and complicated component,
Different cleaning agents can produce corresponding characteristic contamination, not disposable.Power plant's cleaning waste water is the use according to boiler of power plant
Situation, industrial wastewater caused by after 1-2 even 5-6 is cleaned once is cleaned within 1 year, waste water generation frequency is relatively low, belongs to non-and holds
Continuous property industrial wastewater, but yield is larger, and pollutant concentration is very high, ability of the power plant without the processing effluent part, often
Disposal is directly transported outward as dangerous waste.Due to the proposition of power plant effluent zero-emission, the processing of power plant's cleaning waste water is gradually paid attention to,
But do not set up the perfect caused power plant under a variety of different cleaning methods that can be directed to of a set of maturation still at present and clean the one of waste water
Body system for handling.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind of multiple power plant are cleaned
The integrated processing system and processing method of waste water.
The purpose of the present invention can be achieved through the following technical solutions：
The integrated processing system of one kind of multiple power plant's cleaning waste water, include the water inlet pipe of connection power plant washing waste water outlet
Road, and be sequentially connected except acid unit, precipitation unit, except EDTA units, advanced oxidation unit and decolouring unit, described water inlet
Tie point, the second branch road, the 3rd branch road and the 4th branch road is also drawn on pipeline to connect except acid unit, precipitation unit, remove respectively
EDTA units and advanced oxidation unit, described precipitation unit, it is sequentially connected to except the bottom of EDTA units and decolouring unit
The apical supernatant fluid outlet of sludge condensation unit and dewatering unit, sludge condensation unit and dewatering unit, which returns, connects the water inlet
Pipeline, described inlet pipeline are additionally provided with stop valve between tie point and the second branch road.
Preferably, described precipitation unit uses the double layer design of inner cylinder and outer barrel, wherein, bottom and the outer barrel of inner cylinder connect
Logical, the outlet except acid unit is connected to the inner cylinder of precipitation unit, and the top of the outer barrel of precipitation unit connects described the respectively
Three branch roads are with removing EDTA units.
Preferably, the described top and bottom removed in EDTA units is interval with one piece of water fender successively, and to remove
Formed in EDTA units and stream reaction system by what three cells along the connection of water (flow) direction formed, wherein, the unit
The top of the first lattice in lattice connects the 3rd branch road and precipitation unit delivery port, and the top of the 3rd lattice connects the advanced oxidation list
Member.
Preferably, described integrated processing system realizes processing containing acid and EDTA respectively by inlet pipeline reclaimed water matter situation
Cleaning waste water, containing the cleaning waste water of acid or cleaning waste water containing EDTA；
When in inlet pipeline being the cleaning waste water containing acid and EDTA, the second branch road, the 3rd branch road and the 4th branch road are cut off,
Waste water enters from tie point removes acid unit, and successively by precipitation unit, except EDTA units, advanced oxidation unit and the list that decolourizes
Discharged after member processing；
When in inlet pipeline being the waste water containing acid, tie point, the second branch road and the 4th branch road are connected, and stop valve closes
Close, the 3rd branch road, precipitation unit and except connecting line between EDTA units, and except between EDTA units and advanced oxidation unit
Pipeline is cut off, and waste water enters from tie point removes acid unit, and passes through precipitation unit, advanced oxidation unit and decolouring unit successively
Discharged after processing；
When in inlet pipeline being the waste water containing EDTA, tie point, the second branch road, the 4th branch road, and precipitation unit
With except between EDTA units pipeline cut off, stop valve open, the 3rd branch road connect, waste water from the 3rd branch road enter except EDTA it is mono-
Member, and discharged successively after advanced oxidation unit and decolouring cell processing.
Using the processing method of the integrated processing system of described a variety of power plant cleaning waste water, handle containing acid with EDTA's
When cleaning waste water, following steps are preferably included：
(1) deacidify：Cleaning waste water is added into except acid unit, adds except acid treatment and utilizes the first nertralizer regulation pH
To 8-14；
(2) precipitate：Step (1) processing gained waste water enters in precipitation unit, adds flocculant, stirring, base sludge draws
Sludge condensation unit is flow to, apical supernatant fluid, which enters, removes EDTA units；
(3) EDTA is removed：Step (2) processing gained waste water removes EDTA medicaments and uviol lamp in except EDTA units through adding
Treatment with irradiation, reaction form sludge and are drained to sludge condensation unit from bottom, and supernatant flows out to advanced oxidation unit from top；
(4) advanced oxidation：Step (3) processing gained waste water adds oxidant, stir process in advanced oxidation unit；
(5) decolourize：Waste water after aoxidizing obtained by step (4) adds decolorising agent in decolouring unit, and with the second nertralizer
PH to 6-9 is adjusted, base sludge is drained to sludge condensation unit, and apical supernatant fluid is expelled directly out；
(6) sludge condensation unit collects sludge and introduces dewatering unit, and gained supernatant is back to except acid unit, dewatered sludge
Outward transport disposal.
Still more preferably, in step (1)：
The described acid treatment that removes is one or more of combinations in molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, and it is added
Measure as 0.1-50g/L；
The first described nertralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step (2)：
Described flocculant is macromolecule flocculation aid, and its dosage is 1-400mg/L；
In step (3)：
The described EDTA medicaments that remove are one or more of groups in sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate
Close；
In step (4)：
Described oxidant is one or more of groups in sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite
Close, its dosage is 0.1-100g/L；
In step (5)：
Described decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, and its dosage is 1-
1000mg/L；
The second described nertralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
Using the processing method of the integrated processing system of described a variety of power plant cleaning waste water, handle the cleaning containing acid and give up
During water, following steps are preferably comprised：
1) deacidify：Cleaning waste water is added into except acid unit, adds except acid treatment and utilizes the first nertralizer regulation pH
To 8-14；
2) precipitate：Step 1) processing gained waste water enters in precipitation unit, adds flocculant, stirring, base sludge drainage
To sludge condensation unit, apical supernatant fluid enters advanced oxidation unit；
3) advanced oxidation：Step 2) processing gained waste water adds oxidant, stir process in advanced oxidation unit；
4) decolourize：Waste water after being aoxidized obtained by step 3) adds decolorising agent, and adjusted with the second nertralizer in decolouring unit
PH to 6-9 is saved, base sludge is drained to sludge condensation unit, and apical supernatant fluid is expelled directly out；
5) sludge condensation unit collects sludge and introduces dewatering unit, and gained supernatant is back to except acid unit, dewatered sludge
Outward transport disposal.
Still more preferably, in step 1)：
The described acid treatment that removes is one or more of combinations in molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, and it is added
Measure as 0.1-50g/L；
The first described nertralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step 2)：
Described flocculant is macromolecule flocculation aid, and its dosage is 1-400mg/L；
In step 3)：
Described oxidant is one or more of groups in sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite
Close, its dosage is 0.1-100g/L；
In step 4)：
Described decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, and its dosage is 1-
1000mg/L；
The second described nertralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
Using the processing method of the integrated processing system of described a variety of power plant cleaning waste water, the cleaning containing EDTA is handled
During waste water, following steps are preferably comprised：
(a) EDTA is removed：Cleaning waste water is added to except in EDTA units, adding except EDTA medicaments and use ultra violet lamp
Processing, reaction form sludge and are drained to sludge condensation unit from bottom, and supernatant flows out to advanced oxidation unit from top；
(b) advanced oxidation：Step (a) processing gained waste water adds oxidant, stir process in advanced oxidation unit；
(c) decolourize：Waste water after aoxidizing obtained by step (b) adds decolorising agent in decolouring unit, and with the second nertralizer
PH to 6-9 is adjusted, base sludge is drained to sludge condensation unit, and apical supernatant fluid is expelled directly out；
(d) sludge condensation unit collects sludge and introduces dewatering unit, and gained supernatant is back to except acid unit, dewatered sludge
Outward transport disposal.
Still more preferably, in step (a)：
The described EDTA medicaments that remove are one or more of groups in sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate
Close；
In step (b)：
Described oxidant is one or more of groups in sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite
Close, its dosage is 0.1-100g/L；
In step (c)：
Described decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, and its dosage is 1-
1000mg/L；
The second described nertralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
Compared with prior art, the present invention forms the integrated processing system of power plant's cleaning waste water of complete set, and
And realize the handling process of a variety of cleaning waste water.The technique is by the way that characteristic contamination to be removed to (deacidification and except EDTA) and depth
Reason (advanced oxidation and decolouring) unit is combined, and realizes the efficient place to the cleaning waste water containing different characteristic pollutant
Reason, COD and chroma removal rate are respectively higher than 98.4% and 99.1%.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure, 1- removes acid unit, 2- precipitation units, and 3- removes EDTA units, 4- advanced oxidation units, 5- decolouring units, 6-
Sludge condensation unit, 7- dewatering units, 8- valves a, 9- valve b, 10- valve c, 11- valve d, 12- valve e, 13- valve f,
The cleaning waste water of 14- valves g, A- containing acid and EDTA, cleaning waste water of the B- containing acid, cleaning waste water of the C- containing EDTA, D- water outlets, E-
Precipitating sludge, F- gravity concentration sludge, G- dewatered sludges, H- supernatant liquid from sludge dehydration.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
The integrated processing system of one kind of multiple power plant's cleaning waste water, include the water inlet pipe of connection power plant washing waste water outlet
Road, and be sequentially connected except acid unit 1, precipitation unit 2, except EDTA units 3, advanced oxidation unit 4 and decolouring unit 5, it is described
Inlet pipeline on also draw tie point, the second branch road, the 3rd branch road and the 4th branch road connect respectively except acid unit 1, precipitation
Unit 2, except EDTA units 3 and advanced oxidation unit 4, described precipitation unit 2, the bottom except EDTA units 3 and decolouring unit 5
It is sequentially connected to sludge condensation unit 6 and dewatering unit 7, the apical supernatant fluid outlet of sludge condensation unit 6 and dewatering unit 7
Also return and connect the inlet pipeline, described inlet pipeline is additionally provided with stop valve between tie point and the second branch road.
As one of the preferred embodiment of the present invention, described precipitation unit 2 uses the double layer design of inner cylinder and outer barrel,
Wherein, the bottom of inner cylinder is connected with outer barrel, and the outlet except acid unit 1 is connected to the inner cylinder of precipitation unit 2, precipitation unit 2
The top of outer barrel connect the 3rd branch road and remove EDTA units 3 respectively.So, after the waste water that deacidifies enters inner cylinder, from it
Plough under outer barrel for bottom, and the supernatant of precipitation enters next unit from outer barrel, and base sludge is drained to sludge condensation unit 6.It is this
The design of two-layer equation is favorably improved precipitation separating effect.
As one of the preferred embodiment of the present invention, the described top and bottom removed in EDTA units 3 is spaced successively
Provided with one piece of water fender, and cause except formed in EDTA units 3 by three cells along the connection of water (flow) direction form around
Reaction system is flowed, wherein, top the 3rd branch road of connection and the delivery port of precipitation unit 2 of the first lattice in the cell, the 3rd
The top of lattice connects the advanced oxidation unit 4.The design for streaming reaction system helps to ensure that effluent quality.Streaming reaction
First lattice of system are added except EDTA medicaments are stirred while with ultra violet lamp, the sludge settling formed after reaction is the bottom of in
Portion, supernatant enters from bottom through sludge secondary filter streams the middle layout of reaction system, system operation initial stage due to impulse force compared with
Big sludge is easily rushed, and has been rushed sludge and has together been entered the lattice of system the 3rd with waste water, and the wastewater supernatant fluid after secondary precipitation enters
Next unit.
As one of the preferred embodiment of the present invention, described integrated processing system presses inlet pipeline reclaimed water matter situation
Cleaning waste water A of the processing containing acid and EDTA, the cleaning waste water B containing acid or the cleaning waste water C containing EDTA are realized respectively；
When in inlet pipeline being the cleaning waste water A containing acid and EDTA, the second branch road, the 3rd branch road are cut with the 4th branch road
Disconnected, waste water enters from tie point removes acid unit 1, and successively by precipitation unit 2, except EDTA units 3, advanced oxidation unit 4
Discharged with after the processing of decolouring unit 5；
When in inlet pipeline being the waste water containing acid, tie point, the second branch road and the 4th branch road are connected, and stop valve closes
Close, the 3rd branch road, precipitation unit 2 and except connecting line between EDTA units 3, and except EDTA units 3 and advanced oxidation unit 4
Between pipeline cut off, waste water enters from tie point remove acid unit 1, and passes through precipitation unit 2, the and of advanced oxidation unit 4 successively
Discharged after the processing of decolouring unit 5；
When in inlet pipeline being the waste water containing EDTA, tie point, the second branch road, the 4th branch road, and precipitation unit 2
With except between EDTA units 3 pipeline cut off, stop valve open, the 3rd branch road connect, waste water from the 3rd branch road enter except EDTA it is mono-
Member 3, and discharged successively after advanced oxidation unit 4 and decolouring unit 5 are handled.
Embodiment 1
The integrated processing system of one kind of multiple power plant's cleaning waste water, its structure is as shown in figure 1, including the cleaning of connection power plant
The inlet pipeline of wastewater outlet, and be sequentially connected except acid unit 1, precipitation unit 2, except EDTA units 3, advanced oxidation unit 4
With decolouring unit 5, tie point, the second branch road, the 3rd branch road and the 4th branch road are also drawn on described inlet pipeline and is connected respectively
Connect except acid unit 1, precipitation unit 2, except EDTA units 3 and advanced oxidation unit 4, described precipitation unit 2, except EDTA units 3
Sludge condensation unit 6 and dewatering unit 7, sludge condensation unit 6 and dewatering unit are sequentially connected to the bottom of decolouring unit 5
7 apical supernatant fluid outlet, which also returns, connects the inlet pipeline, described inlet pipeline tie point and the second branch road it
Between be additionally provided with valve b9, be respectively equipped with valve a 8, valve c on tie point, the second branch road, the 3rd branch road and the 4th branch road
10th, valve d 11, valve e 12, precipitation unit 2 and except between EDTA units 3 connecting line valve f 13 is set, except EDTA is mono-
Connecting line sets valve g 14 between member 3 and advanced oxidation unit 4.
Described precipitation unit 2 uses the double layer design of inner cylinder and outer barrel, wherein, bottom and the outer barrel of inner cylinder are connected, institute
State except the outlet of acid unit 1 is connected to the inner cylinder of precipitation unit 2, the top of the outer barrel of precipitation unit 2 connects the described 3rd respectively
Branch road is with removing EDTA units 3.
The described top and bottom removed in EDTA units 3 is interval with one piece of water fender successively, and causes except EDTA is mono-
Formed in member 3 and stream reaction system by what three cells along the connection of water (flow) direction formed, wherein, in the cell
The top of first lattice connects the 3rd branch road and the delivery port of precipitation unit 2, and the top of the 3rd lattice connects the advanced oxidation unit 4.
Above-mentioned integrated processing system is realized that cleaning of the processing containing acid and EDTA is given up by inlet pipeline reclaimed water matter situation respectively
Water A, the cleaning waste water B containing acid or the cleaning waste water C containing EDTA；
When in inlet pipeline being the cleaning waste water A containing acid and EDTA, the second branch road, the 3rd branch road are cut with the 4th branch road
Breaking, the waste water containing acid and EDTA enters from tie point removes acid unit 1, and successively by precipitation unit 2, except EDTA units 3, height
Level oxidation unit 4 and decolouring unit 5 are discharged after handling；
When in inlet pipeline being the cleaning waste water B containing acid, tie point, the second branch road and the 4th branch road are connected, cut-off
Valve is closed, the 3rd branch road, precipitation unit 2 and except connecting line between EDTA units 3, and except EDTA units 3 and advanced oxidation
Pipeline is cut off between unit 4, and the cleaning waste water B containing acid enters from tie point remove acid unit 1, and pass through successively precipitation unit 2,
Advanced oxidation unit 4 and decolouring unit 5 are discharged after handling；
When in inlet pipeline being the cleaning waste water C containing EDTA, tie point, the second branch road, the 4th branch road, and precipitation
Unit 2 and except between EDTA units 3 pipeline cut off, stop valve is opened, and the 3rd branch road is connected, and the cleaning waste water C containing EDTA is from the
Three branch roads, which enter, removes EDTA units 3, and is discharged successively after advanced oxidation unit 4 and decolouring unit 5 are handled.
Embodiment 2
The integrated treatment flow chart of a variety of power plant cleaning waste water shown in Figure 1, specifically includes following three kinds of situations.
(1) the cleaning waste water A containing acid and EDTA is added and removes acid unit 1, added except acid treatment and adjust pH, reaction is gone
Deacidification.Waste water enters precipitation unit 2 afterwards, adds flocculant and is stirred, the sludge of formation is drained to sludge from unit bottom
In upgrading unit 6 (such as mud storage pool).Supernatant turns to outer layer from the internal layer bottom of precipitation unit 2, into except EDTA units 3.
Added in first lattice and remove EDTA medicaments, adjusted UV illumination intensity, stirring, then add second and third lattice and precipitated.Precipitation
Sludge introduces sludge condensation unit 6 after being concentrated in bottom.Supernatant is added in advanced oxidation unit 4, adds oxidant, stirring.
Waste water enters decolouring unit 5 after reaction, adds decolorising agent and is stirred after adjusting pH, water outlet D is can obtain after the completion of reaction.Each list
Precipitating sludge E caused by member introduces sludge condensation unit 6 after being concentrated in bottom.The gravity collected in sludge condensation unit 6 is dense
Contracting sludge F is pumped into dewatering unit 7, and supernatant liquid from sludge dehydration H is back to except acid unit 1, dewatered sludge G outward transport disposal.
(2) the cleaning waste water B containing acid is added and removes acid unit 1, added except acid treatment and adjust pH, reaction goes to deacidify.It
Waste water enters precipitation unit 2 afterwards, adds flocculant and is stirred, the sludge of formation is drained to sludge condensation unit from unit bottom
In 6.Supernatant is added in advanced oxidation unit 4, adds oxidant, stirring.Waste water enters decolouring unit 5 after reaction, adds de-
Toner and after adjusting pH, stirring, water outlet D is can obtain after the completion of reaction.Sludge introduces sludge condensation unit after being concentrated in bottom
6.The sludge collected in sludge condensation unit 6 is pumped into dewatering unit 7, supernatant liquid from sludge dehydration H is back to except acid unit 1, dehydration are dirty
Mud G outward transport disposal.
(3) the cleaning waste water C containing EDTA is added and removes EDTA units 3.Added in the first lattice and remove EDTA medicaments, adjusted
UV illumination intensity, stirring, then adds second and third lattice and is precipitated.It is dense that precipitating sludge introduces sludge after being concentrated in bottom
Contracting unit 6.Supernatant is added in advanced oxidation unit 4, adds oxidant, stirring.Waste water enters decolouring unit 5 after reaction, adds
After entering decolorising agent and adjusting pH, stirring, water outlet D is can obtain after the completion of reaction.Sludge introduces sludge condensation after being concentrated in bottom
Unit 6.The sludge collected in sludge condensation unit 6 is pumped into dewatering unit 7, supernatant liquid from sludge dehydration H is back to except EDTA units 3,
Dewatered sludge G outward transport disposal.
Embodiment 3：
Sewage treatment technology process is cleaned using the power plant described in embodiment 2, to certain power plant containing citric acid and EDTA
Cleaning waste water is handled, and concrete operation step is as follows.
(1) citric acid is removed：Cleaning waste water A containing acid and EDTA is added and removes acid unit 1, according to pH value of waste water, is added poly-
Close ferric sulfate 4g/L and adjusted its pH to 9-10 using sodium hydroxide, 15min is quickly stirred with 200rpm.
(2) precipitate：Waste water described in step (1) is added in the inner cylinder of precipitation unit 2, adds anionic polyacrylamide
Amine 10mg/L, 60rpm mix slowly 20min, and waste water ploughs under outer barrel from inner cylinder bottom, and supernatant enters next unit.Bottom is dirty
Mud is drained to sludge condensation unit 6.
(3) EDTA is removed：Waste water described in step (2) is added to except in EDTA units 3, streaming the lattice of reaction system first
Add hydrogen peroxide 10g/L and 60min is stirred with 100rpm, while with ultra violet lamp, the sludge settling formed after reaction is in bucket
In.Supernatant enters from bottom through sludge secondary filter streams the middle layout of reaction system, system operation initial stage due to impulse force compared with
Big sludge is easily rushed, and has been rushed sludge and has together been entered the lattice of system the 3rd with waste water, and the wastewater supernatant fluid after secondary precipitation enters
Next unit.Base sludge is drained to sludge condensation unit 6.
(4) advanced oxidation：Waste water after step (3) separation of solid and liquid is added in advanced oxidation unit 4, adds ozone 15g/
L, 300min is stirred with 200rpm.
(5) decolourize：The waste water of step (4) is added in decolouring unit 5, the potassium hydrogen peroxymonosulfate for adding 500mg/L is answered
Salt is closed, and pH to 6-9 is adjusted with sodium hydroxide, 60min is stirred with 60rpm.
(6) Treatment of Sludge：The sludge collected in sludge condensation unit 6 is introduced into dewatering unit 7, supernatant liquid from sludge dehydration is back to
Except acid unit 1, dewatered sludge outward transport disposal.
Substantially reduced using the water quality colourity after the waste water treatment process processing of the present invention, be down to by the 1237 of raw wastewater
24, COD are down to 72mg/L by the 9800mg/L of raw wastewater.Waste water treatment efficiency is high, simple flow, overcomes and contains two kinds simultaneously
The defect not up to standard of the cleaning waste water of characteristic contamination.
Embodiment 4：
Sewage treatment technology process, the cleaning waste water hydrochloric to certain power plant are cleaned using the power plant described in embodiment 2
Handled, concrete operation step is as follows.
(1) deacidify：Cleaning waste water B containing acid is added and remove acid unit 1, according to pH value of waste water, addition sodium hydroxide by its
PH is adjusted to 9-11, and 40min is quickly stirred with 250rpm.
(2) precipitate：Waste water described in step (1) is added in the inner cylinder of precipitation unit 2, adds cationic polyacrylamide
Amine 200mg/L, 40rpm mix slowly 15min, and waste water ploughs under outer barrel from inner cylinder bottom, and supernatant enters next unit.Bottom is dirty
Mud is drained to sludge condensation unit 6.
(3) advanced oxidation：Waste water after step (2) separation of solid and liquid is added in advanced oxidation unit 4, adds sodium hypochlorite
50g/L, 60min is stirred with 100rpm.
(4) decolourize：The waste water of step (3) is added in decolouring unit 5, adds 200mg/L potassium permanganate, and uses hydrogen
Sodium oxide molybdena adjusts pH to 6-9, and 120min is stirred with 100rpm.
(5) Treatment of Sludge：The sludge collected in sludge condensation unit 6 is introduced into dewatering unit 7, supernatant liquid from sludge dehydration is back to
Except acid unit 1, dewatered sludge outward transport disposal.
Substantially reduced using the water quality colourity after the waste water treatment process processing of the present invention, 16 be down to by the 649 of raw wastewater,
COD is down to 56mg/L by the 2400mg/L of raw wastewater.Waste water treatment efficiency is high, simple flow, overcomes the waste water of cleaning containing acid
Defect not up to standard.
According to water quality situation, in the present embodiment step (1) except acid treatment can accordingly be adjusted to molysite, aluminium salt, calcium salt,
One or more in sodium salt and magnesium salts are used in combination, and it is 0.1-50g/L that it, which adds concentration range,；First nertralizer is according to water quality
Situation can be that one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide are used in combination.
According to water quality situation, the flocculant (cationic-type polyacrylamide) in step (2) can also be adjusted to anion
Type ammonium polyacrylate, or anionic ammonium polyacrylate are used in combination with cationic-type polyacrylamide, add concentration range and are
1-400mg/L。
According to water quality situation, the oxidant (sodium hypochlorite) in step (3) can be adjusted to sodium hypochlorite, ozone, over cure
One or more in hydrochlorate, hydrogen peroxide and molysite are used in combination, and also can be used alone, and it is 0.1-100g/ to add concentration range
L。
According to water quality situation, the decolorising agent (potassium permanganate) in step (4) can accordingly be adjusted to macromolecule flocculation aid, mistake
Sulfate, potassium permanganate and sodium hypochlorite, it is 1-1000mg/L to add concentration range.Second nertralizer can also be according to waste water
PH accordingly selects sulfuric acid, hydrochloric acid or sodium hydroxide etc..
Embodiment 5：
Sewage treatment technology process is cleaned using the power plant described in embodiment 2, the waste water containing EDTA of certain power plant is entered
Row processing, concrete operation step are as follows.
(1) EDTA is removed：Cleaning waste water C containing EDTA is added to except in EDTA units 3, streaming the lattice of reaction system first
Add ferric trichloride 60g/L and 120min is stirred with 100rpm, using ultra violet lamp, the sludge settling formed after reaction is in bucket
Middle supernatant enters the middle layout for streaming reaction system from bottom through sludge secondary filter, and system operation initial stage is larger due to impulse force
Sludge is easily rushed, and has been rushed sludge and has together been entered the lattice of system the 3rd with waste water, under the wastewater supernatant fluid after secondary precipitation enters
Unit one.Base sludge is drained to sludge condensation unit 6.
(2) advanced oxidation：Waste water after step (1) separation of solid and liquid is added in advanced oxidation unit 4, adds sodium peroxydisulfate
20g/L, ferrous sulfate 5g/L, 60min is stirred with 150rpm.
(3) decolourize：The waste water of step (2) is added in decolouring unit 5, adds 900mg/L sodium hypochlorite, and uses hydrogen
Sodium oxide molybdena adjusts pH to 6-9, and 100min is stirred with 60rpm.
(4) Treatment of Sludge：The sludge collected in sludge condensation unit 6 is introduced into dewatering unit 7, supernatant liquid from sludge dehydration is back to
Except acid unit 1, dewatered sludge outward transport disposal.
Substantially reduced using the water quality colourity after the waste water treatment process processing of the present invention, 35 be down to by the 869 of raw wastewater,
COD is down to 43mg/L by the 6850mg/L of raw wastewater.Waste water treatment efficiency is high, simple flow, overcomes and cleans waste water containing EDTA
Defect not up to standard.
According to water quality situation, can be accordingly adjusted to except EDTA medicaments (ferric trichloride) in the present embodiment step (1)
One or more in sulfate, molysite, sulfuric acid, hydrochloric acid, hydrogen peroxide are used in combination, and also can be used alone.Dosage is 0.5-
100g/L。
According to water quality situation, the oxidant (sodium peroxydisulfate and ferrous sulfate) in step (2) can be adjusted to sodium hypochlorite,
One or more in ozone, persulfate, hydrogen peroxide and molysite are used in combination, and also can be used alone, and add concentration range and are
0.1-100g/L。
According to water quality situation, the decolorising agent (sodium hypochlorite) in step (3) can accordingly be adjusted to macromolecule flocculation aid, mistake
Sulfate, potassium permanganate and sodium hypochlorite, it is 1-1000mg/L to add concentration range.Second nertralizer can also be according to waste water
PH accordingly selects sulfuric acid, hydrochloric acid or sodium hydroxide etc..
Embodiment 6
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Bodied ferric sulfate is changed to be changed to calcium hydroxide and hydroxide using 0.1g/L aluminium salt, sodium hydroxide in step (1)
The combination of sodium, pH to adjustable range are adjusted to 11-13.
Embodiment 7
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Bodied ferric sulfate is changed to be changed to calcium hydroxide and sodium hydroxide using 50g/L calcium salt, sodium hydroxide in step (1)
Combination, pH to adjustable range adjusted to 13-14.
Embodiment 8
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Bodied ferric sulfate is changed to the magnesium salts of the sodium salt and 10g/L using 10g/L in step (1), and sodium hydroxide is changed to sulfuric acid
With the combination of hydrochloric acid, pH to adjustable range is adjusted to 8-9.
Embodiment 9
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Anion-polyacrylamide is changed to the cationic-type polyacrylamide using 400mg/L in step (2).
Embodiment 10
Compared with Example 4, the overwhelming majority is all identical, except in the present embodiment：
Anion-polyacrylamide is changed to the cationic-type polyacrylamide using 1mg/L in step (2).
Embodiment 11
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Hydrogen peroxide in step (3) is changed to two kinds of mixing of 10g/L sulfuric acid and 10g/L persulfate.
Embodiment 12
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Hydrogen peroxide in step (3) is changed to 0.5g/L hydrochloric acid.
Embodiment 13
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
The molysite that hydrogen peroxide in step (3) is changed to 100g/L (can be inorganic molysite, such as iron chloride or have
Machine molysite, such as ferric acetyl acetonade).
Embodiment 14
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Ozone in step (4) is changed to 0.1g/L sodium hypochlorite.
Embodiment 15
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Ozone in step (4) is changed to 100g/L iron chloride.
Embodiment 16
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Ozone in step (4) is changed to the mixing of 20g/L persulfate (such as sodium peroxydisulfate) and 20g/L iron chloride.
Embodiment 17
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Ozone in step (4) is changed to 20g/L hydrogen peroxide.
Embodiment 18
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Potassium hydrogen persulfate composite salts in step (5) are changed to 500mg/L macromolecule flocculation aid (such as anionic propylene
Acid amides).
Embodiment 19
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Potassium hydrogen persulfate composite salts in step (5) are changed to 200mg/L potassium permanganate and 200mg/L hypochlorous acid
Sodium；Sodium hydroxide is changed to use sulfuric acid or hydrochloric acid.
Embodiment 20
Compared with Example 3, the overwhelming majority is all identical, except in the present embodiment：
Potassium hydrogen persulfate composite salts in step (5) are changed to 1mg/L potassium permanganate.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel do not depart from improvement that scope made and modification all should be the present invention's according to the announcement of the present invention
Within protection domain.
Claims (10)
1. the integrated processing system of one kind of multiple power plant's cleaning waste water, it is characterised in that go out including connection power plant cleaning waste water
Mouthful inlet pipeline, and be sequentially connected except acid unit, precipitation unit, except EDTA units, advanced oxidation unit and decolouring unit,
Tie point, the second branch road, the 3rd branch road and the 4th branch road is also drawn on described inlet pipeline to connect except acid unit, sink respectively
Shallow lake unit, except EDTA units and advanced oxidation unit, described precipitation unit, except the bottom of EDTA units and decolouring unit according to
Secondary to be connected to sludge condensation unit and dewatering unit, the apical supernatant fluid outlet of sludge condensation unit and dewatering unit returns to connection
The inlet pipeline, described inlet pipeline are additionally provided with stop valve between tie point and the second branch road.
2. the integrated processing system of one kind of multiple power plant's cleaning waste water according to claim 1, it is characterised in that described
Precipitation unit using inner cylinder and outer barrel double layer design, wherein, bottom and the outer barrel of inner cylinder are connected, the going out except acid unit
Mouth is connected to the inner cylinder of precipitation unit, and the top of the outer barrel of precipitation unit connects the 3rd branch road and removes EDTA units respectively.
3. the integrated processing system of one kind of multiple power plant's cleaning waste water according to claim 1, it is characterised in that described
Be interval with one piece of water fender successively except the top and bottom in EDTA units, and cause except being formed in EDTA units by three
Reaction system is streamed along what the cell of the connection of water (flow) direction formed, wherein, connect at the top of the first lattice in the cell
The 3rd branch road and precipitation unit delivery port are connect, the top of the 3rd lattice connects the advanced oxidation unit.
4. the integrated processing system of one kind of multiple power plant's cleaning waste water according to claim 1, it is characterised in that described
Integrated processing system by inlet pipeline reclaimed water matter situation respectively realize processing containing acid and EDTA cleaning waste water, containing acid it is clear
Wash waste water or the cleaning waste water containing EDTA；
When in inlet pipeline being the cleaning waste water containing acid and EDTA, the second branch road, the 3rd branch road and the 4th branch road are cut off, waste water
Enter from tie point and remove acid unit, and pass through precipitation unit successively, except EDTA units, advanced oxidation unit and decolouring unit at
Discharged after reason；
When in inlet pipeline being the waste water containing acid, tie point, the second branch road and the 4th branch road are connected, and stop valve is closed, the
Three branch roads, precipitation unit and except connecting line between EDTA units, and except pipeline between EDTA units and advanced oxidation unit
Cut-out, waste water enters from tie point removes acid unit, and passes through precipitation unit, advanced oxidation unit and decolouring cell processing successively
After discharge；
When in inlet pipeline being the waste water containing EDTA, tie point, the second branch road, the 4th branch road, and precipitation unit is with removing
Pipeline is cut off between EDTA units, and stop valve is opened, and the 3rd branch road is connected, and waste water enters from the 3rd branch road removes EDTA units, and
Discharged successively after advanced oxidation unit and decolouring cell processing.
5. the processing method of the integrated processing system using a variety of power plant cleaning waste water as described in claim 1-4 is any,
Characterized in that, during cleaning waste water of the processing containing acid and EDTA, comprise the following steps：
(1) deacidify：Cleaning waste water is added into except acid unit, adds except acid treatment and utilizes the first nertralizer regulation pH to 8-
14；
(2) precipitate：Step (1) processing gained waste water enters in precipitation unit, adds flocculant, stirring, base sludge is drained to
Sludge condensation unit, apical supernatant fluid, which enters, removes EDTA units；
(3) EDTA is removed：Step (2) processing gained waste water removes EDTA medicaments and ultra violet lamp in except EDTA units through adding
Processing, reaction form sludge and are drained to sludge condensation unit from bottom, and supernatant flows out to advanced oxidation unit from top；
(4) advanced oxidation：Step (3) processing gained waste water adds oxidant, stir process in advanced oxidation unit；
(5) decolourize：Waste water after being aoxidized obtained by step (4) adds decolorising agent, and adjusted with the second nertralizer in decolouring unit
PH to 6-9, base sludge are drained to sludge condensation unit, and apical supernatant fluid is expelled directly out；
(6) sludge condensation unit collects sludge and introduces dewatering unit, and gained supernatant is back to except acid unit, dewatered sludge outward transport
Disposal.
6. the processing method of the integrated processing system according to claim 5 that waste water is cleaned using a variety of power plant, it is special
Sign is, in step (1)：
The described acid treatment that removes is one or more of combinations in molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, and its dosage is
0.1-50g/L；
The first described nertralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step (2)：
Described flocculant is macromolecule flocculation aid, and its dosage is 1-400mg/L；
In step (3)：
The described EDTA medicaments that remove are one or more of combinations in sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate；
In step (4)：
Described oxidant is one or more of combinations in sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite, its
Dosage is 0.1-100g/L；
In step (5)：
Described decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, and its dosage is 1-
1000mg/L；
The second described nertralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
7. the processing method of the integrated processing system using a variety of power plant cleaning waste water as described in claim 1-4 is any,
Characterized in that, during cleaning waste water of the processing containing acid, comprise the steps of：
1) deacidify：Cleaning waste water is added into except acid unit, adds except acid treatment and utilizes the first nertralizer regulation pH to 8-
14；
2) precipitate：Step 1) processing gained waste water enters in precipitation unit, adds flocculant, stirring, base sludge is drained to dirt
Mud upgrading unit, apical supernatant fluid enter advanced oxidation unit；
3) advanced oxidation：Step 2) processing gained waste water adds oxidant, stir process in advanced oxidation unit；
4) decolourize：Waste water after being aoxidized obtained by step 3) adds decolorising agent, and adjust pH with the second nertralizer in decolouring unit
To 6-9, base sludge is drained to sludge condensation unit, and apical supernatant fluid is expelled directly out；
5) sludge condensation unit collects sludge and introduces dewatering unit, and gained supernatant is back to except acid unit, dewatered sludge outward transport
Disposal.
8. the processing method of the integrated processing system of a variety of power plant's cleaning waste water according to claim 7, its feature exist
In,
In step 1)：
The described acid treatment that removes is one or more of combinations in molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, and its dosage is
0.1-50g/L；
The first described nertralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step 2)：
Described flocculant is macromolecule flocculation aid, and its dosage is 1-400mg/L；
In step 3)：
Described oxidant is one or more of combinations in sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite, its
Dosage is 0.1-100g/L；
In step 4)：
Described decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, and its dosage is 1-
1000mg/L；
The second described nertralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
9. the processing method of the integrated processing system using a variety of power plant cleaning waste water as described in claim 1-4 is any,
Characterized in that, during cleaning waste water of the processing containing EDTA, comprise the steps of：
(a) EDTA is removed：Cleaning waste water is added to except in EDTA units, adding except EDTA medicaments and using at ultra violet lamp
Reason, reaction form sludge and are drained to sludge condensation unit from bottom, and supernatant flows out to advanced oxidation unit from top；
(b) advanced oxidation：Step (a) processing gained waste water adds oxidant, stir process in advanced oxidation unit；
(c) decolourize：Waste water after being aoxidized obtained by step (b) adds decolorising agent, and adjusted with the second nertralizer in decolouring unit
PH to 6-9, base sludge are drained to sludge condensation unit, and top clear liquid is expelled directly out；
(d) sludge condensation unit collects sludge and introduces dewatering unit, and gained supernatant is back to except acid unit, dewatered sludge outward transport
Disposal.
10. the processing method of the integrated processing system according to claim 9 that waste water is cleaned using a variety of power plant, it is special
Sign is, in step (a)：
The described EDTA medicaments that remove are one or more of combinations in sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate；
In step (b)：
Described oxidant is one or more of combinations in sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite, its
Dosage is 0.1-100g/L；
In step (c)：
Described decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, and its dosage is 1-
1000mg/L；
The second described nertralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130368A (en) * | 2013-03-04 | 2013-06-05 | 上海电力学院 | Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water |
| CN103449598A (en) * | 2013-08-12 | 2013-12-18 | 上海电力学院 | Treatment method of ethylene diamine tetraacetic acid (EDTA) boiler cleaning wastewater of power plant |
| CN203602428U (en) * | 2013-10-29 | 2014-05-21 | 南京源泉环保科技股份有限公司 | Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water |
| CN103951125A (en) * | 2014-03-14 | 2014-07-30 | 长沙理工大学 | EDTA (ethylene diamine tetraacetic acid) cleaning waste liquid processing method and corresponding reaction device |
| CN203781948U (en) * | 2014-03-14 | 2014-08-20 | 长沙理工大学 | Treatment device of EDTA cleaning waste liquid |
| CN104743694A (en) * | 2013-12-30 | 2015-07-01 | 北京有色金属研究总院 | Recycling processing method and device of heavy metal ion-containing organic acid wastewater |
| CN105293747A (en) * | 2014-06-11 | 2016-02-03 | 蒋寿悟 | Method for treating EDTA chemical cleaning wastewater |
| CN106673267A (en) * | 2017-02-27 | 2017-05-17 | 上海电力学院 | Stainless steel degreasing cleaning wastewater treatment system and treatment process based thereon |
-
2017
- 2017-08-29 CN CN201710757759.8A patent/CN107445341B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130368A (en) * | 2013-03-04 | 2013-06-05 | 上海电力学院 | Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water |
| CN103449598A (en) * | 2013-08-12 | 2013-12-18 | 上海电力学院 | Treatment method of ethylene diamine tetraacetic acid (EDTA) boiler cleaning wastewater of power plant |
| CN203602428U (en) * | 2013-10-29 | 2014-05-21 | 南京源泉环保科技股份有限公司 | Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water |
| CN104743694A (en) * | 2013-12-30 | 2015-07-01 | 北京有色金属研究总院 | Recycling processing method and device of heavy metal ion-containing organic acid wastewater |
| CN103951125A (en) * | 2014-03-14 | 2014-07-30 | 长沙理工大学 | EDTA (ethylene diamine tetraacetic acid) cleaning waste liquid processing method and corresponding reaction device |
| CN203781948U (en) * | 2014-03-14 | 2014-08-20 | 长沙理工大学 | Treatment device of EDTA cleaning waste liquid |
| CN105293747A (en) * | 2014-06-11 | 2016-02-03 | 蒋寿悟 | Method for treating EDTA chemical cleaning wastewater |
| CN106673267A (en) * | 2017-02-27 | 2017-05-17 | 上海电力学院 | Stainless steel degreasing cleaning wastewater treatment system and treatment process based thereon |
Non-Patent Citations (1)
| Title |
|---|
| 刘俊峰等: "电站锅炉柠檬酸酸洗废水处理", 《工业用水与废水》 * |
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