CN109133385A - A kind of super softening plant of desulfurization wastewater - Google Patents
A kind of super softening plant of desulfurization wastewater Download PDFInfo
- Publication number
- CN109133385A CN109133385A CN201710506768.XA CN201710506768A CN109133385A CN 109133385 A CN109133385 A CN 109133385A CN 201710506768 A CN201710506768 A CN 201710506768A CN 109133385 A CN109133385 A CN 109133385A
- Authority
- CN
- China
- Prior art keywords
- pond
- mix
- water
- desulfurization wastewater
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 24
- 230000023556 desulfurization Effects 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005189 flocculation Methods 0.000 claims abstract description 26
- 230000016615 flocculation Effects 0.000 claims abstract description 26
- 230000003197 catalytic effect Effects 0.000 claims abstract description 22
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 230000005906 menstruation Effects 0.000 claims description 3
- 125000001741 organic sulfur group Chemical group 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 238000012549 training Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a kind of super softening plants of desulfurization wastewater comprising preceding mixed pond A, preceding mixed pond B, in mix pond A, in mix pond B, flocculation tank, separate tank, afterwards mixed pond and ozone catalytic pond；Labyrinth path is equipped between each pond, make water mix in the past pond A, preceding mixed pond B, in mix pond A, in mix that pond B, flocculation tank, clarifying basin, mixed pond and ozone catalytic pond are flowed one by one afterwards, water is set not generate cutout, big reflux ratio is used simultaneously, it is less than 0.1mg/L that desulfurization wastewater hardness remnants after the softening of this device, which can be used, with enhancing bating effect and reduce medicament use, while have occupied area is smaller, investment is lower, process flow is relatively short, it is stable, saving operation and maintenance expense.
Description
Technical field
The present invention relates to desulfurization wastewater processing technology fields, and in particular to a kind of super softening plant of desulfurization wastewater.
Background technique
Realize now with Environmental Protection in China and require to be continuously improved, as the terminal of Waste Water From Fire Power Plant discharge, gradually
It will require to carry out full factory's practice wastewater zero discharge.But as the ring for realizing heat-engine plant desulfurized waste water softening, three current headers
And secondary softening, operation and process route are relatively long, and operational effect is poor, therefore are directed to this problem, need new dress
It sets to simplify softening process, establishes certain technical foundation for subsequent concentration
Softening common at present is just softened with three headers+clarifier, i.e., using neutralization case+flow tank+flocculation tanks+clarification
Device；Or use secondary softening, i.e. three headers+clarifier+tubular membrane；Comprehensive analysis both the above scheme, the first operation are soft
Change effect and operation stability be poor, second in the process of running tubular membrane be easy to produce dirty stifled, and invest relatively high, fortune
Row is costly.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of super softening plant of desulfurization wastewater.
In view of the above problem of the prior art, according to an aspect of the present invention, in order to solve the above technical problems, this
Invention use a kind of super softening plant of desulfurization wastewater, described device includes preceding mixed pond A(1), preceding mixed pond B(2), in mix pond A
(3), in mix pond B(4), flocculation tank (5), clarifying basin (6), afterwards mix pond (7) and ozone catalytic pond (8)；
Preceding mixed pond A(1), preceding mixed pond B(2), in mix pond A(3), in mix pond B(4), ozone catalytic pond (8) with anti-corrosion type stirring
Machine, hydraulic detention time are 2 ~ 5min;
Flocculation tank (5) promotes blender with anti-corrosion type, and revolving speed can carry out water and water quality is adjusted, and interior be equipped with is prevented
Rotten type guide shell plate (17), can future water be promoted to design 5 ~ 20 times of water and recycled, hydraulic detention time is 10 ~
20min；Between flocculation tank (5) and clarifying basin (6) be equipped with training wall (24), this region flow velocity control be 0.01m/s ~
0.05m/s；
Clarifying basin (6) has anti-corrosion type mud scraper, and pool wall is equipped with deflector (18), and revolving speed can carry out water and water quality is adjusted
Whole, hydraulic detention time is 60 ~ 180min, and bottom is equipped with sludge return pipe (19) and sludge discharge line (20), sludge
Reflux line (19) be higher than bottom be equipped with sludge discharge line (20), sludge return pipe (19) be back in mix pond B(4), pass through
Sludge discharge line (20) discharge, the control of sludge reflux amount are 5% ~ 30%, and it is 3% ~ 13% that concentration, which is discharged, in sludge, and clarifying basin (6) goes out
Water flow velocity control is 10 ~ 30m/s；
Ozone catalytic pond (8) carries out pressurized catalysis by high pressure ultrasonic ozone device, kickback is carried out with water, when stopping
Between be 1 ~ 3min；
The super softening plant of desulfurization wastewater is equipped with labyrinth path, makes water from water inlet (22) mixed pond A(1 before menstruation), preceding mixed pond B
(2), in mix pond A(3), in mix pond B(4), flocculation tank (5), clarifying basin (6), afterwards mix pond (7) and ozone catalytic pond (8) by
A flowing, water outlet (23) outflow do not generate internal cutout；
According to desulfurization wastewater super softening plant requirement, in preceding mixed pond A(1) caustic soda and lime, preceding mixed pond B(2 is added) in be added
Polyferric Sulfate, in mix pond A(3) be added organic sulfur, in mix pond B(4) be added soda, flocculation tank (5) be added flocculation aid, afterwards mix pond
(7) Polyferric Sulfate and sulfuric acid are added in；
Desulfurization wastewater hardness remnants after the softening of this device are less than 0.1mg/L；
It is 1000mm that the super softening plant internal drag of desulfurization wastewater, which is less than,.
Compared with prior art, of the invention to be advantageous in that:
(1) flow velocity is higher, and occupied area is smaller, invests smaller；
(2) process flow is relatively short, stable, saves operation and maintenance expense；
(3) treatment effect is relatively preferable, can effectively ban tubular membrane melded system, reduces system operation risk, improves system
Safe operation ability；
Detailed description of the invention
Illustrate present specification embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the reference to embodiments some in present specification, for those skilled in the art, what is do not made the creative labor
In the case of, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 shows a kind of structural schematic diagram of the super softening plant of desulfurization wastewater according to an embodiment of the invention.
Pond A is mixed in figure, before (1), and pond B is mixed before (2), pond A is mixed in (3), mixes pond B, (5) flocculation tank, (6) clarifying basin, (7) in (4)
Mix pond, (8) ozone catalytic pond afterwards, pond A blender, (10) are mixed before (9) before mix pond B blender, mix in (11) pond A blender,
(12) in mix pond B blender, (13) flocculation tank promoted blender, (14) clarifying basin mud scraper, (15) afterwards mix pond blender,
(16) ozone catalytic pond blender, (17) guide shell plate, (18) deflector, (19) sludge return pipe, (20) sludge discharge pipe
Road, (21) conduction pipe, (22) water inlet, (23) water outlet, (24) training wall.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Fig. 1 and Fig. 2 shows the structural schematic diagram of the super softening plant of desulfurization wastewater according to an embodiment of the invention,
Wherein Fig. 1 is equipment flowsheet, and Fig. 2 is the plan view of Fig. 1, including preceding mixed pond A (1), preceding mixed pond B (2), in mix pond A (3), in
Mixed pond B (4), flocculation tank (5), clarifying basin (6) mix pond (7), ozone catalytic pond (8), preceding mixed pond A blender (9), preceding afterwards
Mixed pond B blender (10), in mix pond A blender (11), in mix pond B blender (12), flocculation tank promoted blender (13),
Clarifying basin mud scraper (14), afterwards mixed pond blender (15), ozone catalytic pond blender (16), guide shell plate (17), deflector
(18), sludge return pipe (19), sludge discharge line (20), conduction pipe (21), water inlet (22), water outlet (23), lead
It flows wall (24).
As shown in Figure 1, preceding mixed (1) bottom pond A is there are water inlet (22), preceding mixed pond A (1) be equipped in mix pond A blender
(11), top and connection at the top of preceding mixed pond B (2)；Preceding mixed pond B (2) is equipped with preceding mixed pond B blender (10), preceding mixed pond B (2) bottom
Pond A (3) bottom is mixed in and is connected in portion；In mix pond A (3) be equipped in mix pond A blender (11), in mix pond A (3) in mix pond B
(4) top is connected；In mix pond B (4) be equipped in mix pond B blender (12), in mix (4) bottom pond B pass through conduction pipe (21)
It is connected with flocculation tank (5)；Flocculation tank promotes the guide shell plate that blender (13) are installed on flocculation tank (5)
(17) between, flocculation tank (5) is connected to clarifying basin (6) by plug-flow area；Clarifying basin (6) is provided with clarifying basin mud scraper
(14), deflector (18), sludge return pipe (19) and sludge discharge line (20)；Clarifying basin (6) is connected with rear mixed pond (7)
It connects, is mixed after pond (7) are equipped with afterwards and mix pond blender (15)；It mixes pond (7) afterwards to be connected with ozone catalytic pond (8), ozone catalytic pond (8)
Equipped with ozone catalytic pond blender (16).
The super softening plant of desulfurization wastewater is equipped with labyrinth path, makes water from water inlet (22) mixed pond A(1 before menstruation), it is preceding mixed
Pond B(2), in mix pond A(3), in mix pond B(4), flocculation tank (5), clarifying basin (6), afterwards mix pond (7) and ozone catalytic pond (8)
It flows one by one, water outlet (23) outflow does not generate internal cutout；
Preceding mixed pond A (1), preceding mixed pond B (2), in mix pond A (3), in mix pond B (4), afterwards mix pond (7) and ozone catalytic pond (8) appearance
Product guarantees that the waterpower unit residence time is 2 ~ 5min；
Clarifying basin (6) has anti-corrosion type mud scraper, and pool wall is equipped with deflector (18), and revolving speed can carry out water and water quality is adjusted
Whole, hydraulic detention time is 60 ~ 180min, and bottom is equipped with sludge return pipe (19) and sludge discharge line (20), sludge
Return pipe (19) be higher than bottom be equipped with sludge discharge line (20), mud return line (19) be back in mix pond B(4), pass through sludge
Discharge line (20) discharge, the control of sludge reflux amount are 5% ~ 30%, and it is 3% ~ 13% that concentration, which is discharged, in sludge, and clarifying basin (6) goes out water flow
Speed control is 10 ~ 30m/s；
Ozone catalytic pond (8) is provided with ozone catalytic pond blender (16), and high pressure ultrasonic ozone device carries out pressurized catalysis,
Kickback is carried out with water, the residence time is 1 ~ 3min；
According to the super softening plant requirement of desulfurization wastewater, caustic soda and lime is added in preceding mixed pond A (1), is added in preceding mixed pond B (2)
Polyferric Sulfate, in mix pond A (3) be added organic sulfur, in mix pond B (4) be added soda, flocculation tank (5) be added flocculation aid, afterwards mix pond
(7) Polyferric Sulfate and sulfuric acid are added in, ozone catalytic pond (8) generate high pressure ultrasonic ozone；
Each section is respectively combined as the super softening plant of desulfurization wastewater, is a core apparatus, includes each sub-project, phase
Mutual correlation.Be sufficiently stirred reflux to medicament, thus can with desulfurization wastewater after the softening of this device hardness remnants be less than
0.1mg/L, meanwhile, the super softening plant internal drag of desulfurization wastewater can be adjusted according to water elevation difference, general control
Less than for 1000mm.
It further include related mating electrical system and instrument control for the stable operation for guaranteeing this device.
" one embodiment " and " embodiment " for being spoken of in the present specification etc. refers to combining embodiment description
Specific features, structure or feature are included at least one embodiment generally described herein.It is multiple in the description
It is not centainly to refer to the same embodiment that statement of the same race, which occurs, in place.Furthermore, it is understood that describing one in conjunction with any embodiment
Specific features, structure perhaps feature when to be advocated is that this feature, structure or feature are realized in conjunction with other embodiments
Also it falls within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the variations and modifications of progress, to those skilled in the art, other purposes also be will be apparent.
Claims (1)
1. a kind of super softening plant of desulfurization wastewater, which is characterized in that including preceding mixed pond A(1), preceding mixed pond B(2), in mix pond A
(3), in mix pond B(4), flocculation tank (5), clarifying basin (6), afterwards mix pond (7) and ozone catalytic pond (8)；
Preceding mixed pond A(1), preceding mixed pond B(2), in mix pond A(3), in mix pond B(4), ozone catalytic pond (8) with anti-corrosion type stirring
Machine, hydraulic detention time are 2 ~ 5min;
Flocculation tank (5) promotes blender with anti-corrosion type, and revolving speed can carry out water and water quality is adjusted, and interior be equipped with is prevented
Rotten type guide shell plate (17), can future water be promoted to design 5 ~ 20 times of water and recycled, hydraulic detention time is 10 ~
20min；
Training wall (24) are equipped between flocculation tank (5) and clarifying basin (6), the control of this region flow velocity is 0.01m/s ~ 0.05m/
s；
Clarifying basin (6) has anti-corrosion type mud scraper, and pool wall is equipped with deflector (18), and revolving speed can carry out water and water quality is adjusted
Whole, hydraulic detention time is 60 ~ 180min, and bottom is equipped with sludge return pipe (19) and sludge discharge line (20), sludge
Reflux line (19) be higher than bottom be equipped with sludge discharge line (20), sludge return pipe (19) be back in mix pond B(4), pass through
Sludge discharge line (20) discharge, the control of sludge reflux amount are 5% ~ 30%, and it is 3% ~ 13% that concentration, which is discharged, in sludge, and clarifying basin (6) goes out
Water flow velocity control is 10 ~ 30m/s；
Ozone catalytic pond (8) carries out pressurized catalysis by high pressure ultrasonic ozone device, kickback is carried out with water, when stopping
Between be 1 ~ 3min；
The super softening plant of desulfurization wastewater is equipped with labyrinth path, makes water from water inlet (22) mixed pond A(1 before menstruation), preceding mixed pond B
(2), in mix pond A(3), in mix pond B(4), flocculation tank (5), clarifying basin (6), afterwards mix pond (7) and ozone catalytic pond (8) by
A flowing, water outlet (23) outflow do not generate internal cutout；
According to desulfurization wastewater super softening plant requirement, in preceding mixed pond A(1) caustic soda and lime, preceding mixed pond B(2 is added) in be added
Polyferric Sulfate, in mix pond A(3) be added organic sulfur, in mix pond B(4) be added soda, flocculation tank (5) be added flocculation aid, afterwards mix pond
(7) Polyferric Sulfate and sulfuric acid are added in；
Desulfurization wastewater hardness remnants after the softening of this device are less than 0.1mg/L；
It is 1000mm that the super softening plant internal drag of desulfurization wastewater, which is less than,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506768.XA CN109133385A (en) | 2017-06-28 | 2017-06-28 | A kind of super softening plant of desulfurization wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506768.XA CN109133385A (en) | 2017-06-28 | 2017-06-28 | A kind of super softening plant of desulfurization wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109133385A true CN109133385A (en) | 2019-01-04 |
Family
ID=64805599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710506768.XA Pending CN109133385A (en) | 2017-06-28 | 2017-06-28 | A kind of super softening plant of desulfurization wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109133385A (en) |
-
2017
- 2017-06-28 CN CN201710506768.XA patent/CN109133385A/en active Pending
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Application publication date: 20190104 |
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