CN107445341B - 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
- Publication number
- CN107445341B CN107445341B CN201710757759.8A CN201710757759A CN107445341B CN 107445341 B CN107445341 B CN 107445341B CN 201710757759 A CN201710757759 A CN 201710757759A CN 107445341 B CN107445341 B CN 107445341B
- Authority
- CN
- China
- Prior art keywords
- unit
- waste water
- edta
- branch
- except
- 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.)
- Active
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 153
- 238000004140 cleaning Methods 0.000 title claims abstract description 80
- 238000012545 processing Methods 0.000 title claims abstract description 55
- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 120
- 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 111
- 230000003647 oxidation Effects 0.000 claims abstract description 67
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 67
- 239000002253 acid Substances 0.000 claims abstract description 63
- 238000001556 precipitation Methods 0.000 claims abstract description 60
- 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 23
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 24
- 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
- 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
- 230000001376 precipitating effect Effects 0.000 description 7
- 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
- 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
- 238000000926 separation method Methods 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
- 238000005516 engineering process Methods 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 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 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
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 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
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000001408 amides Chemical class 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
- 238000010586 diagram 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
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-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
- 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 systems and processing method of one kind of multiple power plant cleaning waste water, the integrated processing system includes the inlet pipeline for connecting power plant's washing waste water outlet, and it is sequentially connected except acid unit, precipitation unit, except EDTA unit, advanced oxidation unit and decoloration unit, the first branch is also drawn on the inlet pipeline, second branch, third branch and the 4th branch are separately connected except acid unit, precipitation unit, except EDTA unit and advanced oxidation unit, the precipitation unit, except the bottom of EDTA unit and decoloration 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, the inlet pipeline is additionally provided with shut-off valve between the first branch and second branch.Compared with prior art, the integrated processing system that the present invention is combined using deacidification-except EDTA- advanced oxidation, a variety of power plant of efficient process clean waste water, realize purification and recycling of waste water etc..
Description
Technical field
The present invention relates to sewage treatment fields, more particularly, to the integrated processing system of one kind of multiple power plant cleaning waste water
With processing method.
Background technique
Due to the fast development of current domestic industry, demand of all trades and professions to electric power resource is also more and more big, 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.There are many kinds of the cleaning methods of boiler of power plant, and typical clean process is water pre-flush, then acid cleaning
With complexing agent cleaning one of or combine progresss, then again water rinse, finally be passivated clean.Therefore primary cleaning behavior
The waste water of generation mainly includes flushing water, pickling waste waters and passivating wastewater.The amount of flushing waste water is very big but pollutant concentration is lower,
It is more easy to handle.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 generate corresponding characteristic contamination, not easy to handle.Power plant's cleaning waste water is the use according to boiler of power plant
Situation cleans the industrial wastewater of the primary rear generation of 1-2 times or even 5-6 cleaning for 1 year, and waste water generation frequency is lower, belongs to non-hold
Continuous property industrial wastewater, but yield is larger, and pollutant concentration is very high, and power plant does not have the ability for handling the effluent part, often
Disposition 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 perfect can be directed to the power plant's cleaning waste water generated under a variety of different cleaning methods one of a set of maturation is not set up still at present
Body system for handling.
Summary 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 to clean
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, the water inlet pipe including connecting power plant's washing waste water outlet
Road and it is sequentially connected except acid unit, precipitation unit, except EDTA unit, advanced oxidation unit and decoloration unit, it is described into
Also drawn in water lines the first branch, second branch, third branch and the 4th branch be separately connected except acid unit, precipitation unit,
Except EDTA unit and advanced oxidation unit, the precipitation unit, except EDTA unit and decolourize unit bottom be sequentially connected
To sludge condensation unit and dewatering unit, the outlet of the apical supernatant fluid of sludge condensation unit and dewatering unit return connection it is described into
Water lines, the inlet pipeline are additionally provided with shut-off valve between the first branch and second branch.
Preferably, the precipitation unit uses the double layer design of inner cylinder and outer cylinder, wherein the bottom of inner cylinder connects with outer cylinder
Logical, the outlet except acid unit is connected to the inner cylinder of precipitation unit, and described the is separately connected at the top of the outer cylinder of precipitation unit
Two branches with remove EDTA unit.
Preferably, the top and bottom removed in EDTA unit is successively equipped at intervals with one piece of water fender, and to remove
It is formed in EDTA unit and streams reaction system by what the cell of three connections along water (flow) direction formed, wherein the unit
The top connection third branch and precipitation unit water outlet of the first lattice in lattice, the top of third lattice connect the advanced oxidation list
Member.
Preferably, the integrated processing system realizes processing containing acid and EDTA respectively by water quality situation in inlet pipeline
Cleaning waste water, containing the cleaning waste water of acid or cleaning waste water containing EDTA；
When in inlet pipeline for containing the sour cleaning waste water with EDTA, second branch, third branch and the 4th branch are cut off,
Waste water enters from the first branch removes acid unit, and successively by precipitation unit, except EDTA unit, advanced oxidation unit and decolourizes single
It is discharged after member processing；
When in inlet pipeline for containing sour waste water, the first branch, second branch are connected with the 4th branch, and shut-off valve closes
It closes, third branch, precipitation unit and except connecting line between EDTA unit, and except between EDTA unit and advanced oxidation unit
Pipeline cutting, waste water enters from the first branch removes acid unit, and successively by precipitation unit, advanced oxidation unit and decoloration unit
It is discharged after processing；
When in inlet pipeline being the waste water containing EDTA, the first branch, second branch, the 4th branch and precipitation unit
With except pipeline cutting between EDTA unit, shut-off valve are opened, third branch is connected, and waste water enters from third branch except EDTA is mono-
Member, and be successively discharged after advanced oxidation unit and decoloration cell processing.
Using the processing method of the integrated processing system of a variety of power plant cleaning waste water, handle containing acid with EDTA's
When cleaning waste water, following steps are preferably included:
(1) it deacidifies: cleaning waste water is added to except in acid unit, addition adjusts pH except acid treatment and using the first neutralizer
To 8-14；
(2) precipitate: step (1) processing gained waste water enters in precipitation unit, flocculant, stirring is added, base sludge draws
It is flow to sludge condensation unit, apical supernatant fluid, which enters, removes EDTA unit；
(3) remove EDTA: step (2) processing gained waste water is added in except EDTA unit except EDTA medicament and ultraviolet lamp
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: oxidant, stir process is added in advanced oxidation unit in step (3) processing gained waste water；
(5) decolourize: decolorising agent is added in decoloration unit in the waste water after oxidation obtained by step (4), and with the second neutralizer
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 disposition.
Still more preferably, in step (1):
Described removes the combination that acid treatment is one or more of molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, adds
Amount is 0.1-50g/L；
First neutralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step (2):
The flocculant is macromolecule flocculation aid, dosage 1-400mg/L；
In step (3):
Described removes the group that EDTA medicament is one or more of sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate
It closes；
In step (4):
The oxidant is the group of one or more of sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite
It closes, dosage 0.1-100g/L；
In step (5):
The decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, dosage 1-
1000mg/L；
Second neutralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
Using the processing method of the integrated processing system of a variety of power plant cleaning waste water, it is useless to handle the cleaning containing acid
When water, following steps are preferably comprised:
1) it deacidifies: cleaning waste water is added to except in acid unit, addition adjusts pH except acid treatment and using the first neutralizer
To 8-14；
2) precipitate: step 1) processing gained waste water enters in precipitation unit, and flocculant, stirring, base sludge drainage is added
To sludge condensation unit, apical supernatant fluid enters advanced oxidation unit；
3) advanced oxidation: oxidant, stir process is added in advanced oxidation unit in step 2) processing gained waste water；
4) decolourize: decolorising agent is added in decoloration unit in the waste water after oxidation obtained by step 3), and with the second neutralizer tune
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 disposition.
Still more preferably, in step 1):
Described removes the combination that acid treatment is one or more of molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, adds
Amount is 0.1-50g/L；
First neutralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step 2):
The flocculant is macromolecule flocculation aid, dosage 1-400mg/L；
In step 3):
The oxidant is the group of one or more of sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite
It closes, dosage 0.1-100g/L；
In step 4):
The decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, dosage 1-
1000mg/L；
Second neutralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
Using the processing method of the integrated processing system of a variety of power plant cleaning waste water, the cleaning containing EDTA is handled
When waste water, following steps are preferably comprised:
(a) remove EDTA: will cleaning waste water be added to except in EDTA unit, add except EDTA medicament and use ultraviolet light irradiation
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: oxidant, stir process is added in advanced oxidation unit in step (a) processing gained waste water；
(c) decolourize: decolorising agent is added in decoloration unit in the waste water after oxidation obtained by step (b), and with the second neutralizer
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 disposition.
Still more preferably, in step (a):
Described removes the group that EDTA medicament is one or more of sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate
It closes；
In step (b):
The oxidant is the group of one or more of sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite
It closes, dosage 0.1-100g/L；
In step (c):
The decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, dosage 1-
1000mg/L；
Second neutralizer 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 treatment process of a variety of cleaning waste water.The technique (is deacidified and except EDTA) and depth by removing characteristic contamination
Reason (advanced oxidation and decoloration) 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%.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure, 1- removes acid unit, 2- precipitation unit, and 3- removes EDTA unit, 4- advanced oxidation unit, 5- decoloration unit, 6-
Sludge condensation unit, 7- dewatering unit, 8- valve a, 9- valve b, 10- valve c, 11- valve d, 12- valve e, 13- valve f,
The cleaning waste water of 14- valve g, A- containing acid and EDTA, cleaning waste water of the B- containing acid, cleaning waste water of the C- containing EDTA, D- water outlet, E-
Precipitating sludge, F- gravity concentration sludge, G- dewatered sludge, H- supernatant liquid from sludge dehydration.
Specific 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, the water inlet pipe including connecting power plant's washing waste water outlet
Road, and be sequentially connected except acid unit 1, precipitation unit 2, except EDTA unit 3, advanced oxidation unit 4 and decoloration unit 5, it is described
Inlet pipeline on also draw the first branch, second branch, third branch and the 4th branch be separately connected except acid unit 1, precipitating
Unit 2, remove EDTA unit 3 and advanced oxidation unit 4, the precipitation unit 2, except EDTA unit 3 and decolourize unit 5 bottom
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
It also returns and connects the inlet pipeline, the inlet pipeline is additionally provided with shut-off valve between the first branch and second branch.
As one of the preferred embodiment of the present invention, the precipitation unit 2 uses the double layer design of inner cylinder and outer cylinder,
Wherein, the bottom of inner cylinder and outer cylinder are connected, and the outlet except acid unit 1 is connected to the inner cylinder of precipitation unit 2, precipitation unit 2
Outer cylinder at the top of be separately connected the third branch with except EDTA unit 3.In this way, after the waste water that deacidifies enters inner cylinder, from it
Plough under outer cylinder for bottom, and the supernatant of precipitating enters next unit from outer cylinder, and base sludge is drained to sludge condensation unit 6.It is this
The design of two-layer equation helps to improve precipitation and separation effect.
As one of the preferred embodiment of the present invention, the top and bottom removed in EDTA unit 3 is successively spaced
Equipped with one piece of water fender, and make except formed in EDTA unit 3 by the cell of three connections along water (flow) direction form around
Flow reaction system, wherein the top connection third branch and 2 water outlet of precipitation unit of the first lattice in the cell, third
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 medicament is stirred while with ultraviolet light irradiation, and the sludge settling formed after reaction is the bottom of in
Portion, supernatant, which enters from bottom through sludge secondary filter, streams the middle layout of reaction system, system initial operating stage due to impulse force compared with
Big sludge is easily rushed, and has been rushed sludge and has been entered system third lattice together with waste water, and the wastewater supernatant fluid after secondary precipitation enters
Next unit.
As one of the preferred embodiment of the present invention, the integrated processing system is by water quality situation in inlet pipeline
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 for containing the sour cleaning waste water A with EDTA, second branch, third branch and the 4th branch are cut
Disconnected, waste water enters from the first branch removes acid unit 1, and successively by precipitation unit 2, except EDTA unit 3, advanced oxidation unit 4
It is discharged after being handled with decoloration unit 5；
When in inlet pipeline for containing sour waste water, the first branch, second branch are connected with the 4th branch, and shut-off valve closes
It closes, third branch, precipitation unit 2 and except connecting line between EDTA unit 3, and except EDTA unit 3 and advanced oxidation unit 4
Between pipeline cutting, waste water from the first branch enter remove acid unit 1, and successively pass through precipitation unit 2,4 and of advanced oxidation unit
Decoloration unit 5 is discharged after handling；
When in inlet pipeline being the waste water containing EDTA, the first branch, second branch, the 4th branch and precipitation unit 2
With except pipeline cutting between EDTA unit 3, shut-off valve are opened, third branch is connected, and waste water enters from third branch except EDTA is mono-
Member 3, and be successively discharged after advanced oxidation unit 4 and decoloration unit 5 are handled.
Embodiment 1
The integrated processing system of one kind of multiple power plant's cleaning waste water, structure is as shown in Figure 1, include 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 unit 3, advanced oxidation unit 4
With decoloration unit 5, the first branch, second branch, third branch and the 4th branch are also drawn on the inlet pipeline and is connected respectively
It connects except acid unit 1, precipitation unit 2, except EDTA unit 3 and advanced oxidation unit 4, the precipitation unit 2 removes EDTA unit 3
Sludge condensation unit 6 and dewatering unit 7, sludge condensation unit 6 and dewatering unit are sequentially connected to the bottom of decoloration unit 5
7 apical supernatant fluid outlet, which also returns, connects the inlet pipeline, the inlet pipeline the first branch and second branch it
Between be additionally provided with valve b9, the first branch, second branch, third branch and the 4th road are respectively equipped with valve a 8, valve c
10, valve d 11, valve e 12, precipitation unit 2 and except between EDTA unit 3 connecting line valve f 13 is set, except EDTA is mono-
Valve g 14 is arranged in connecting line between member 3 and advanced oxidation unit 4.
The precipitation unit 2 uses the double layer design of inner cylinder and outer cylinder, wherein the bottom of inner cylinder and outer cylinder are connected, institute
It states except the outlet of acid unit 1 is connected to the inner cylinder of precipitation unit 2, is separately connected the third at the top of the outer cylinder of precipitation unit 2
Branch with remove EDTA unit 3.
The top and bottom removed in EDTA unit 3 is successively equipped at intervals with one piece of water fender, and makes except EDTA is mono-
It is formed in member 3 and streams reaction system by what the cell of three connections along water (flow) direction formed, wherein in the cell
The top connection third branch and 2 water outlet of precipitation unit of first lattice, the top of third lattice connect the advanced oxidation unit 4.
Above-mentioned integrated processing system realizes that cleaning of the processing containing acid and EDTA is useless by water quality situation in inlet pipeline respectively
Water A, the cleaning waste water B containing acid or the cleaning waste water C containing EDTA；
When in inlet pipeline for containing the sour cleaning waste water A with EDTA, second branch, third branch and the 4th branch are cut
Disconnected, the waste water containing acid and EDTA enters from the first branch removes acid unit 1, and successively by precipitation unit 2, except EDTA unit 3, height
Grade oxidation unit 4 and decoloration unit 5 are discharged after handling；
When in inlet pipeline for containing sour cleaning waste water B, the first branch, second branch are connected with the 4th branch, cut-off
Valve is closed, third branch, precipitation unit 2 and except connecting line between EDTA unit 3, and removes EDTA unit 3 and advanced oxidation
Between unit 4 pipeline cut off, containing acid cleaning waste water B from the first branch enter remove acid unit 1, and successively by precipitation unit 2,
Advanced oxidation unit 4 and decoloration unit 5 are discharged after handling；
When in inlet pipeline being the cleaning waste water C containing EDTA, the first branch, second branch, the 4th branch, and precipitating
Unit 2 and except between EDTA unit 3 pipeline cut off, shut-off valve is opened, and third branch is connected, and the cleaning waste water C containing EDTA is from the
Three branches, which enter, removes EDTA unit 3, and is successively discharged after advanced oxidation unit 4 and decoloration 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, be added except acid treatment and adjust pH, reaction is gone
Deacidification.Waste water enters precipitation unit 2 later, and flocculant is added 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 2 internal layer bottom of precipitation unit, into except EDTA unit 3.?
It is added in first lattice and removes EDTA medicament, adjust UV illumination intensity, stirring is then added second and third lattice and is precipitated.Precipitating
Sludge introduces sludge condensation unit 6 after bottom is concentrated.Supernatant is added in advanced oxidation unit 4, and oxidant, stirring is added.
Waste water enters decoloration unit 5 after reaction, and decolorising agent is added and stirs after adjusting pH, water outlet D can be obtained after the reaction was completed.Each list
The precipitating sludge E that member generates introduces sludge condensation unit 6 after the concentration of 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 disposition.
(2) the cleaning waste water B containing acid is added and removes acid unit 1, be added except acid treatment and adjust pH, reaction goes to deacidify.It
Waste water enters precipitation unit 2 afterwards, and flocculant is added 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, and oxidant, stirring is added.Waste water enters decoloration unit 5 after reaction, is added de-
Toner and after adjusting pH, water outlet D can be obtained in stirring after the reaction was completed.Sludge introduces sludge condensation unit after bottom is concentrated
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, and dehydration is dirty
Mud G outward transport disposition.
(3) the cleaning waste water C containing EDTA is added and removes EDTA unit 3.It is added in the first lattice and removes EDTA medicament, adjusted
UV illumination intensity, stirring, is then added second and third lattice and is precipitated.It is dense that precipitating sludge introduces sludge after bottom is concentrated
Contracting unit 6.Supernatant is added in advanced oxidation unit 4, and oxidant, stirring is added.Waste water enters decoloration unit 5 after reaction, adds
After entering decolorising agent and adjusting pH, water outlet D is can be obtained in stirring after the reaction was completed.Sludge introduces sludge condensation after bottom is concentrated
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 unit 3,
Dewatered sludge G outward transport disposition.
Embodiment 3:
Sewage treatment technology process is cleaned using 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) it removes citric acid: the cleaning waste water A containing acid and EDTA being added and removes acid unit 1, according to pH value of waste water, be added poly-
It closes ferric sulfate 4g/L and its pH is adjusted within the scope of 9-10 using sodium hydroxide, 15min is stirred quickly with 200rpm.
(2) it precipitates: waste water described in step (1) being added in 2 inner cylinder of precipitation unit, anionic polyacrylamide is added
Amine 10mg/L, 60rpm mix slowly 20min, and waste water ploughs under outer cylinder from inner cylinder bottom, and supernatant enters next unit.Bottom is dirty
Mud is drained to sludge condensation unit 6.
(3) it removes EDTA: waste water described in step (2) is added to except streaming the first lattice of reaction system in EDTA unit 3
Hydrogen peroxide 10g/L is added, 60min is stirred with 100rpm, while with ultraviolet light irradiation, the sludge settling formed after reaction is in bucket
In.Supernatant, which enters from bottom through sludge secondary filter, streams the middle layout of reaction system, system initial operating stage due to impulse force compared with
Big sludge is easily rushed, and has been rushed sludge and has been entered system third lattice together 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: the waste water after step (3) are separated by solid-liquid separation is added in advanced oxidation unit 4, and ozone 15g/ is added
L stirs 300min with 200rpm.
(5) it decolourizes: the waste water of step (4) is added in decoloration unit 5, the potassium hydrogen peroxymonosulfate that 500mg/L is added is multiple
Salt is closed, and adjusts pH to 6-9 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 disposition.
Using waste water treatment process of the invention, treated that water quality coloration is substantially reduced, and is 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 while there are two types of containing
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 power plant described in embodiment 2
It is handled, concrete operation step is as follows.
(1) deacidify: the cleaning waste water B containing acid being added and removes acid unit 1, according to pH value of waste water, be added sodium hydroxide by its
PH is adjusted to 9-11, quickly stirs 40min with 250rpm.
(2) it precipitates: waste water described in step (1) being added in 2 inner cylinder of precipitation unit, cationic polyacrylamide is added
Amine 200mg/L, 40rpm mix slowly 15min, and waste water ploughs under outer cylinder from inner cylinder bottom, and supernatant enters next unit.Bottom is dirty
Mud is drained to sludge condensation unit 6.
(3) advanced oxidation: the waste water after step (2) are separated by solid-liquid separation is added in advanced oxidation unit 4, and sodium hypochlorite is added
50g/L stirs 60min with 100rpm.
(4) it decolourizes: the waste water of step (3) being added in decoloration unit 5, the potassium permanganate of 200mg/L is added, and use hydrogen
Sodium oxide molybdena adjusts pH to 6-9, stirs 120min 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 disposition.
Using waste water treatment process of the invention, treated that water quality coloration is substantially reduced, and is down to 16 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 of sodium salt and magnesium salts are used in combination, and adding concentration range is 0.1-50g/L；First neutralizer is according to water quality
Situation can be used in combination for one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide.
According to water quality situation, the flocculant (cationic-type polyacrylamide) in step (2) is also adjustable for 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) is adjustable for sodium hypochlorite, ozone, over cure
One or more of hydrochlorate, hydrogen peroxide and molysite are used in combination, and also can be used alone, and adding concentration range is 0.1-100g/
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, adding concentration range is 1-1000mg/L.Second neutralizer can also be according to waste water
PH accordingly selects sulfuric acid, hydrochloric acid or sodium hydroxide etc..
Embodiment 5:
Clean sewage treatment technology process using power plant described in embodiment 2, to the waste water containing EDTA of certain power plant into
Row processing, concrete operation step are as follows.
(1) it removes EDTA: the cleaning waste water C containing EDTA is added to except streaming the first lattice of reaction system in EDTA unit 3
Ferric trichloride 60g/L is added, 120min is stirred with 100rpm, using ultraviolet light irradiation, 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 initial operating stage is larger due to impulse force
Sludge is easily rushed, and has been rushed sludge and has been entered system third lattice together 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: the waste water after step (1) is separated by solid-liquid separation is added in advanced oxidation unit 4, and sodium peroxydisulfate is added
20g/L, ferrous sulfate 5g/L stir 60min with 150rpm.
(3) it decolourizes: the waste water of step (2) being added in decoloration unit 5, the sodium hypochlorite of 900mg/L is added, and use hydrogen
Sodium oxide molybdena adjusts pH to 6-9, stirs 100min 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 disposition.
Using waste water treatment process of the invention, treated that water quality coloration is substantially reduced, and is down to 35 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 in the present embodiment step (1) except EDTA medicament (ferric trichloride)
One or more of 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, oxidant (sodium peroxydisulfate and ferrous sulfate) in step (2) it is adjustable for sodium hypochlorite,
One or more of 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, adding concentration range is 1-1000mg/L.Second neutralizer 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, in addition in the present embodiment:
Bodied ferric sulfate is changed to be changed to calcium hydroxide and hydroxide using the aluminium salt of 0.1g/L, 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, in addition in the present embodiment:
Bodied ferric sulfate is changed to be changed to calcium hydroxide and sodium hydroxide using the calcium salt of 50g/L, sodium hydroxide in step (1)
Combination, pH to adjustable range is adjusted to 13-14.
Embodiment 8
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Bodied ferric sulfate is changed to the magnesium salts of 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, in addition 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, in addition 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, in addition in the present embodiment:
Hydrogen peroxide in step (3) is changed to two kinds of mixing of the sulfuric acid of 10g/L and the persulfate of 10g/L.
Embodiment 12
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Hydrogen peroxide in step (3) is changed to the hydrochloric acid of 0.5g/L.
Embodiment 13
Compared with Example 3, the overwhelming majority is all identical, in addition 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, be also possible to have
Machine molysite, such as ferric acetyl acetonade).
Embodiment 14
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Ozone in step (4) is changed to the sodium hypochlorite of 0.1g/L.
Embodiment 15
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Ozone in step (4) is changed to the iron chloride of 100g/L.
Embodiment 16
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Ozone in step (4) is changed to the mixing of the persulfate (such as sodium peroxydisulfate) of 20g/L and the iron chloride of 20g/L.
Embodiment 17
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Ozone in step (4) is changed to the hydrogen peroxide of 20g/L.
Embodiment 18
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Potassium hydrogen persulfate composite salts in step (5) are changed to macromolecule flocculation aid (such as anionic propylene of 500mg/L
Amide).
Embodiment 19
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Potassium hydrogen persulfate composite salts in step (5) are changed to the potassium permanganate of 200mg/L and the hypochlorous acid of 200mg/L
Sodium；Sodium hydroxide is changed to using sulfuric acid or hydrochloric acid.
Embodiment 20
Compared with Example 3, the overwhelming majority is all identical, in addition in the present embodiment:
Potassium hydrogen persulfate composite salts in step (5) are changed to the potassium permanganate of 1mg/L.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (9)
1. the integrated processing system of one kind of multiple power plant's cleaning waste water, which is characterized in that go out including connection power plant cleaning waste water
Mouthful inlet pipeline and it is sequentially connected except acid unit, precipitation unit, except EDTA unit, advanced oxidation unit and decoloration it is single
Member, the first branch, second branch, third branch and the 4th branch are also drawn on the inlet pipeline, and to be separately connected deacidification single
Member, precipitation unit, remove EDTA unit and advanced oxidation unit, the precipitation unit, except EDTA unit and decolourize unit bottom
Portion is sequentially connected to sludge condensation unit and dewatering unit, and the apical supernatant fluid outlet of sludge condensation unit and dewatering unit is returned
The connection inlet pipeline is returned, the inlet pipeline is additionally provided with shut-off valve between the first branch and second branch；
The integrated processing system by water quality situation in inlet pipeline realizes respectively cleaning waste water of the processing containing acid and EDTA,
Cleaning waste water containing acid or the cleaning waste water containing EDTA；
When in inlet pipeline for containing the sour cleaning waste water with EDTA, second branch, third branch and the 4th branch are cut off, waste water
Enter from the first branch and remove acid unit, and successively passes through precipitation unit, removes at EDTA unit, advanced oxidation unit and decoloration unit
It is discharged after reason；
When in inlet pipeline for containing sour waste water, the first branch, second branch are connected with the 4th branch, and shut-off valve is closed, the
Three branches, precipitation unit and except connecting line between EDTA unit, and except pipeline between EDTA unit and advanced oxidation unit
Cutting, waste water enters from the first branch removes acid unit, and successively by precipitation unit, advanced oxidation unit and decoloration cell processing
After be discharged；
When in inlet pipeline for waste water containing EDTA, the first branch, second branch, the 4th branch and precipitation unit with remove
Pipeline is cut off between EDTA unit, and shut-off valve is opened, and third branch is connected, and waste water enters from third branch removes EDTA unit, and
Successively it is discharged after advanced oxidation unit and decoloration cell processing.
2. the integrated processing system of one kind of multiple power plant's cleaning waste water according to claim 1, which is characterized in that described
Precipitation unit use the double layer design of inner cylinder and outer cylinder, wherein the bottom of inner cylinder and outer cylinder are connected, the going out except acid unit
Mouth is connected to the inner cylinder of precipitation unit, and the second branch is separately connected at the top of the outer cylinder of precipitation unit and removes EDTA unit.
3. the integrated processing system of one kind of multiple power plant's cleaning waste water according to claim 1, which is characterized in that described
Be successively equipped at intervals with one piece of water fender except the top and bottom in EDTA unit, and make except being formed in EDTA unit by three
Reaction system is streamed along what the cell of the connection of water (flow) direction formed, wherein is connected at the top of the first lattice in the cell
Third branch and precipitation unit water outlet are connect, the top of third lattice connects the advanced oxidation unit.
4. the processing method of the integrated processing system using a variety of power plant's cleaning waste water a method according to any one of claims 1-3,
It is characterized in that, when cleaning waste water of the processing containing acid and EDTA, comprising the following steps:
(1) it deacidifies: cleaning waste water is added to except in acid unit, addition adjusts pH to 8- except acid treatment and using the first neutralizer
14；
(2) precipitate: step (1) processing gained waste water enters in precipitation unit, flocculant, stirring is added, base sludge is drained to
Sludge condensation unit, apical supernatant fluid, which enters, removes EDTA unit；
(3) remove EDTA: step (2) processing gained waste water is added in except EDTA unit except EDTA medicament and ultraviolet light irradiation
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: oxidant, stir process is added in advanced oxidation unit in step (3) processing gained waste water；
(5) decolourize: decolorising agent is added in decoloration unit in the waste water after oxidation obtained by step (4), and is adjusted with the second neutralizer
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
Disposition.
5. the processing method of the integrated processing system according to claim 4 using a variety of power plant cleaning waste water, special
Sign is, in step (1):
Described removes the combination that acid treatment is one or more of molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, and dosage is
0.1-50g/L；
First neutralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step (2):
The flocculant is macromolecule flocculation aid, dosage 1-400mg/L；
In step (3):
Described removes the combination that EDTA medicament is one or more of sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate；
In step (4):
The oxidant is the combination of one or more of sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite,
Dosage is 0.1-100g/L；
In step (5):
The decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, dosage 1-
1000mg/L；
Second neutralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
6. the processing method of the integrated processing system using a variety of power plant's cleaning waste water a method according to any one of claims 1-3,
It is characterized in that, when cleaning waste water of the processing containing acid comprising the steps of:
1) it deacidifies: cleaning waste water is added to except in acid unit, addition adjusts pH to 8- except acid treatment and using the first neutralizer
14；
2) precipitate: step 1) processing gained waste water enters in precipitation unit, flocculant, stirring is added, base sludge is drained to dirt
Mud upgrading unit, apical supernatant fluid enter advanced oxidation unit；
3) advanced oxidation: oxidant, stir process is added in advanced oxidation unit in step 2) processing gained waste water；
4) decolourize: decolorising agent is added in decoloration unit in the waste water after oxidation obtained by step 3), and adjusts pH with the second neutralizer
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
Disposition.
7. the processing method of the integrated processing system of a variety of power plant's cleaning waste water according to claim 6, feature exist
In,
In step 1):
Described removes the combination that acid treatment is one or more of molysite, aluminium salt, calcium salt, sodium salt and magnesium salts, and dosage is
0.1-50g/L；
First neutralizer is the combination of one or both of sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide；
In step 2):
The flocculant is macromolecule flocculation aid, dosage 1-400mg/L；
In step 3):
The oxidant is the combination of one or more of sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite,
Dosage is 0.1-100g/L；
In step 4):
The decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, dosage 1-
1000mg/L；
Second neutralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
8. the processing method of the integrated processing system using a variety of power plant's cleaning waste water a method according to any one of claims 1-3,
It is characterized in that, when cleaning waste water of the processing containing EDTA comprising the steps of:
(a) it removes EDTA: cleaning waste water is added to except in EDTA unit, adding except EDTA medicament and using at ultraviolet light irradiation
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: oxidant, stir process is added in advanced oxidation unit in step (a) processing gained waste water；
(c) decolourize: decolorising agent is added in decoloration unit in the waste water after oxidation obtained by step (b), and is adjusted with the second neutralizer
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
Disposition.
9. the processing method of the integrated processing system according to claim 8 using a variety of power plant cleaning waste water, special
Sign is, in step (a):
Described removes the combination that EDTA medicament is one or more of sulfuric acid, hydrochloric acid, hydrogen peroxide, molysite or persulfate；
In step (b):
The oxidant is the combination of one or more of sodium hypochlorite, ozone, persulfate, hydrogen peroxide or molysite,
Dosage is 0.1-100g/L；
In step (c):
The decolorising agent is macromolecule flocculation aid, persulfate, potassium permanganate or sodium hypochlorite, dosage 1-
1000mg/L；
Second neutralizer is sulfuric acid, hydrochloric acid or sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757759.8A CN107445341B (en) | 2017-08-29 | 2017-08-29 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757759.8A CN107445341B (en) | 2017-08-29 | 2017-08-29 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107445341A CN107445341A (en) | 2017-12-08 |
| CN107445341B true CN107445341B (en) | 2019-10-18 |
Family
ID=60493321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757759.8A Active CN107445341B (en) | 2017-08-29 | 2017-08-29 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107445341B (en) |
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 |
|---|
| 电站锅炉柠檬酸酸洗废水处理;刘俊峰等;《工业用水与废水》;20131028;第44卷(第05期);摘要、第43页左栏第2段至右栏第3段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107445341A (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101172726B (en) | Method and technological process for treating sewage of oil recovery | |
| CN101857328B (en) | Spinning printing and dyeing waste water reclamation method, device and application thereof | |
| WO2019196053A1 (en) | High-efficiency energy-saving integrated water treatment device | |
| CN102040294B (en) | Treatment method for circulating water sewerage and reverse osmosis concentrated water | |
| CN205088075U (en) | Integrated equipment that black smelly water was handled | |
| CN107055871A (en) | A kind of new coagulating sedimentation retention filtering air-water backwashing integrated high-efficiency filter tank | |
| CN106380016A (en) | Steel pickling wastewater treatment and reuse method and device | |
| CN202072564U (en) | Ultrafiltration water purifying device with high anti-fouling capability | |
| CN107399863B (en) | Combined treatment system and method for boiler chemical cleaning wastewater and air preheater flushing water | |
| CN201184059Y (en) | Filter device backwashing water recovery apparatus | |
| CN107445341B (en) | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water | |
| CN206467084U (en) | A kind of plant effuent processing system | |
| CN203346197U (en) | Integrated water purification device | |
| CN206156907U (en) | Sewage treatment system is arranged in thermal power plant's circulation | |
| CN108751533A (en) | A kind of processing method of the acidic rinse waste water suitable for process of metal working | |
| CN212198793U (en) | Comprehensive purification system for desulfurization wastewater by limestone-gypsum method | |
| CN113003810A (en) | System for make municipal sewage into new water | |
| CN210193565U (en) | Waste water zero discharge system of whole factory of reclaimed water source gas power plant | |
| CN207552128U (en) | A kind of device of integrated membrane process hydridization removal low concentration selenium-containing wastewater | |
| CN106630386A (en) | Dual municipal wastewater recycling device | |
| CN206645908U (en) | Thermal power plant's sewage disposal utilizes system | |
| KR20100115856A (en) | Development of integrated water supply system combine with large scale loop pipe and decentalized water treatment plant | |
| CN110862172A (en) | Comprehensive purification system and method for desulfurization wastewater by limestone-gypsum method | |
| CN205575747U (en) | Industrial waste water advanced treatment filter equipment | |
| CN207483511U (en) | The joint processing system of Boiler Chemical waste water and air preheater flushing water |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |