CN205590456U - Desulfurization wastewater treatment device of low mud production volume - Google Patents
Desulfurization wastewater treatment device of low mud production volume Download PDFInfo
- Publication number
- CN205590456U CN205590456U CN201620156363.9U CN201620156363U CN205590456U CN 205590456 U CN205590456 U CN 205590456U CN 201620156363 U CN201620156363 U CN 201620156363U CN 205590456 U CN205590456 U CN 205590456U
- Authority
- CN
- China
- Prior art keywords
- depositing reservoir
- tank
- waste water
- spoil disposal
- flocculation
- 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
Abstract
The utility model provides a desulfurization wastewater treatment device of low mud production volume, include: with the just heavy pond that a desulfurization waste water comes the water pipe way to feed through, its bottom is equipped with 1 the 1st discharge mud pipe, with the 1st flocculation reaction tank of just heavy pond intercommunication is provided with a first medicament and throws the feeder apparatus, with a first depositing reservoir of flocculation reaction tank intercommunication, its bottom is equipped with 1 the 2nd discharge mud pipe, a discharge mud pipe and the 2nd discharge mud pipe intercommunication to a gypsum hydroextractor, the gypsum hydroextractor has filtrate export, filtrate export through a return line with flocculation reaction tank intercommunication, with one of first depositing reservoir intercommunication removes heavy sedimentation tank group. Provide the desulfurization wastewater treatment method based on above -mentioned device simultaneously. The mud production volume of desulfurization wastewater treatment in -process can be reduced, the desulfurization wastewater treatment cost is reduced to effectively reduce the possibility that secondary pollution takes place.
Description
Technical field
This utility model relates to environmental protection technical field, is specifically related to the desulfurizing waste water processing device of a kind of low mud generation amount.
Background technology
Coal fired power generation is China's main energy sources supply form at present.For environment protection, most of power plant of China adopts in recent years
By Limestone-gypsum Wet Flue Gas Desulfurization Process technology, in order to remove the sulfur dioxide in flue gas, but this system of wet desulphurization also can produce de-
Sulfur waste water.Wet desulphurization waste component in coal-burning power plant's is complicated, containing high concentration suspended matter, oversaturated sulphite, chloride ion,
Sulfate and various heavy.
At present desulfurization wastewater mainly uses chemical precipitation method to process, mainly by neutralizing, precipitating, the method removal desulfurization such as flocculation
Pollutant in waste water are commonly called as three header methods.Owing to desulfurization wastewater has acidic character, and containing contents of many kinds of heavy metal ion, to useless
Adding lime cream or other alkaline agents (lime cream) regulation waste water extremely alkalescence in water, general control pH value is 9.0～9.5.By
In in addition to minority active metal, most of heavy metal ion such as Fe3+、Zn2+、Cu2+、Ni2+、Cr3+Deng in the basic conditions can
Generating indissoluble hydroxide, therefore heavy metal ion separates from waste water with hydroxide precipitation form.But and not all heavy metal
Preferably can remove with the form of hydroxide precipitation, wherein lead and hydrargyrum it is difficult with the removal up to standard of neutralization precipitation method.Typically take
The method adding sulfide in waste water, makes the Hg in waste water2+With S2-Generating HgS precipitation hard to tolerate, conventional sulfide is for having
Machine vulcanizing agent.After above chemical precipitation is reacted, then carry out flocculation sediment and concentrating clarifying process.
The most conventional chemical precipitation method has advantage simple to operate, that operating cost is relatively low, but this technique produces sludge quantity greatly,
Ton Aquatic product primary sludge amount is about 20～50 kilograms, and mud mostlys come from float, the calcium sulfate of precipitation carried in initial waste
Crystal and heavy metal precipitation thing, owing to containing various heavy in mud, cause process and dispose more difficulty, currently mainly
Employing landfill method is disposed, and processes and disposal costs is high, Treatment of Sludge cost per ton about 300 yuan.Additionally, use the disposal of landfill
Mode easily causes again secondary pollution.
Therefore, in order to reduce Treatment of Sludge cost, it is to avoid secondary pollution, the wastewater processing technology tool of low mud generation amount is developed
There are important economy and environmental benefit.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the desulfurizing waste water processing device of a kind of low mud generation amount.Can
Reduce the mud generation amount in desulfurization wastewater processing procedure, reduce desulfurization wastewater processing cost, and effectively reduce secondary pollution generation
Possibility.
For reaching above-mentioned purpose, the concrete technical scheme that this utility model is taked is:
A kind of desulfurizing waste water processing device of low mud generation amount, including:
With a preliminary sedimentation tank of a desulfurization wastewater water pipeline connection, bottom it, it is provided with one first spoil disposal pipeline；
One first flocculation tank connected with described preliminary sedimentation tank, is provided with one first medicament addition device；
One first depositing reservoir connected with described first flocculation tank, is provided with one second spoil disposal pipeline bottom it；
Described first spoil disposal pipeline and the second spoil disposal pipeline communication to a gypsum dehydration machine, described gypsum dehydration facility have a filtrate
Outlet, described filtrate outlet is connected with described first flocculation tank by a reflux pipe；
One connected with described first depositing reservoir removes reprecipitation pond group.
Further, described include except reprecipitation pond group:
One connected with described first depositing reservoir, except weight reaction tank, is provided with one second medicament addition device；
With described one second flocculation tank connected except weight reaction tank, it is provided with one the 3rd medicament addition device；
One second depositing reservoir connected with described second flocculation tank, is provided with one the 3rd spoil disposal pipeline bottom it；
The outlet pipeline connected with described second depositing reservoir overflow, is provided with one the 4th medicament addition device.
Further, described first flocculation tank, be provided with liquid mixing device except weight reaction tank and the second flocculation tank.
Further, described liquid loads in mixture and is set to an agitating device or an aerator.
Further, the bottom of described preliminary sedimentation tank, the first depositing reservoir and the second depositing reservoir is bucket-shaped, and described bucket-shaped tip is even
Logical first spoil disposal pipeline, the second spoil disposal pipeline or the 3rd spoil disposal pipeline.
Further, it is provided with mud scum baffle plate in described preliminary sedimentation tank.In order to avoid mud scum in desulfurization wastewater to enter the with first supernatant liquid
One flocculation tank.
By taking technique scheme, it is possible to by desulfurization wastewater being carried out except solid pretreatment, and to the mud sub-prime produced
Dispose, can effectively reduce mud generation amount, reduce secondary pollution, save simultaneously and run and process, cost of disposal, the most permissible
Resource recovery.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of this utility model desulfurization wastewater sofening treatment；
Description of reference numerals: 1-preliminary sedimentation tank；2-gypsum dehydration machine；3-the first flocculation tank；4,7,9-agitating device；5-
First depositing reservoir；6-is except weight reaction tank；8-the second flocculation tank；10-the second depositing reservoir；11-the 3rd spoil disposal pipeline.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear,
Complete description, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.
Based on the embodiment in this utility model, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There are other embodiments, broadly fall into the scope of this utility model protection.Coordinate institute's accompanying drawing to feature and advantage of the present utility model below
Elaborate.
As it is shown in figure 1, in one embodiment, it is provided that the desulfurizing waste water processing device of a kind of low mud generation amount, including: with de-
The preliminary sedimentation tank 1 of sulfur waste water water pipeline connection, is provided with the first spoil disposal pipeline bottom it；The first flocculation connected with preliminary sedimentation tank 1 is anti-
Answer pond 3, be provided with one first medicament addition device；The first depositing reservoir 5 connected with the first flocculation tank 3, is provided with bottom it
One second spoil disposal pipeline；First spoil disposal pipeline and the second spoil disposal pipeline communication have one to gypsum dehydration machine 2, gypsum dehydration machine 2
Filtrate outlet, described filtrate outlet is connected by a reflux pipe and the first flocculation tank 3；With the first depositing reservoir 5 even
Logical one except reprecipitation pond group, including connect with the first depositing reservoir 5 except weight reaction tank 6, be provided with one second adding of agent and fill
Put；The second flocculation tank 8 connected with except weight reaction tank 6, is provided with the 3rd medicament addition device；With the second flocculation reaction
One second depositing reservoir 10 of pond 8 connection, is provided with the 3rd spoil disposal pipeline 11 bottom it；With going out that the second depositing reservoir 11 overflow connects
Water lines, is provided with the 4th medicament addition device.
Specifically, in order to make flocculation and more abundant except heavily reacting, the first flocculation tank 3, except weight reaction tank 5 and the second wadding
Solidifying reaction tank 8 is provided with liquid mixing device.As it is shown in figure 1, liquid mixing device is optional such as the agitating device 4,7,9 in figure；Also
Aerator can be used to replace.
For the ease of sedimentation and the discharge of mud, the bottom of preliminary sedimentation tank the 1, first depositing reservoir 5 and the second depositing reservoir 11 is bucket-shaped,
Described bucket-shaped tip is respectively communicated with the first spoil disposal pipeline, the second spoil disposal pipeline or the 3rd spoil disposal pipeline.
It addition, in order to avoid the mud scum in desulfurization wastewater enters the first flocculation tank 3 with first supernatant liquid, optional in preliminary sedimentation tank 1
Select and mud scum baffle plate is set.Relevant mud scum baffle arrangement belongs to conventional design when those skilled in the art process Similar Problems, its merit
Can be the most known to those skilled in the art with structure, do not repeat them here.
When desulfurization wastewater is carried out sofening treatment, first, desulfurization wastewater initially enters preliminary sedimentation tank, and the time of staying is 40～90min,
After physics settles, the mud of generation enters gypsum dehydration machine, ultimately forms gypsum by-product, the mistake that gypsum dehydration machine produces
Filtrate is back to the first flocculation tank；
Preliminary sedimentation tank supernatant enters the first flocculation tank, opens agitating device, by medicament addition device to the first flocculation reaction
Adding combination medicament A, combination medicament A in pond is sodium sulfate, flocculant and flocculation aid, separates out supersaturation in waste water by reaction
Calcium sulfate and calcium sulfite, simultaneously increase suspended substance sedimentation performance；
Waste water in first flocculation tank enters the first depositing reservoir by overflow manner or pipeline, realizes mud in the first depositing reservoir
Water separates, and the mud that the first depositing reservoir produces enters gypsum dehydration machine, ultimately forms gypsum by-product, and gypsum dehydration machine produces
Filtrate is back to the first flocculation tank；
So far, complete desulfurization wastewater removes solid pretreatment, owing to just sinking and during flocculation sediment, do not change former desulfurization and give up
The character of water slant acidity, the precipitate main component of generation is calcium sulfate hydrate, therefore can enter gypsum dehydration machine, makees
Utilize for gypsum by-product.It is possible not only to Resource recovery, eliminates major part in waste water in the most heavy and flocculation sediment stage outstanding simultaneously
Float and calcium salt, can effectively reduce the mud generation amount of subsequent reactions workshop section.
Supernatant in first depositing reservoir enters except weight reaction tank, opens agitating device, adds combination medicament B, combination medicament B
Including basic agent and organic sulfur, controlling pH in reactor is 9～9.5, for removing lead in waste water, chromium, nickel, hydrargyrum etc.
Heavy metal.Basic agent is preferably lime cream, it is possible to use sodium hydroxide etc..
Except the waste water in weight reaction tank enters the second flocculation tank by overflow manner or pipeline, open agitating device, to reaction
Adding combination medicament C, combination medicament C in device is flocculant and flocculation aid, by flocculation reaction, increases float in waste water
Settling property；
Waste water in second flocculation tank enters the second depositing reservoir by overflow manner or pipeline, carries out mud in the second depositing reservoir
After water separates, the mud of generation contains various heavy, need to individually dispose, and mud processes after dehydration further, and second is clear
It is acid medicine, preferably hydrochloric acid that the supernatant that clear pond produces adds medicament D, medicament D, and wastewater pH is adjusted to 6～9, finally
Up to standard discharged by outlet pipeline.In order to obtain more preferably regulating effect, optional acid medicine is added at outlet pipeline.
As a example by a Practical Project, taking certain power plant desulfurization waste water, waste water initially enters preliminary sedimentation tank, after 60min settles, produces
Raw mud enters gypsum dehydration machine, and preliminary sedimentation tank supernatant enters flocculation tank, opens agitating device, is filled by adding of agent
Put in flocculation tank, add sodium sulfate, flocculant and flocculation aid, make oversaturated calcium sulfate and calcium sulfite in waste water separate out
For crystal grain, the waste water in flocculation tank enters depositing reservoir by overflow manner or pipeline, realizes muddy water and divide in depositing reservoir
From, the mud that depositing reservoir produces enters gypsum dehydration machine, ultimately forms gypsum by-product, and the filtrate that gypsum dehydration machine produces returns
Flow to flocculation tank.
Supernatant in depositing reservoir enters except weight reaction tank, opens agitating device, adds a certain amount of lime cream and organic sulfur, control
In reactor processed, pH is 9～9.5, for removing the heavy metals such as lead in waste water, chromium, nickel, hydrargyrum.Then except in weight reaction tank
Waste water enter flocculation tank, open agitating device, in reactor, add flocculant and flocculation aid, by flocculation reaction,
Increase the settling property of float in waste water.
Then the waste water in flocculation tank enters depositing reservoir, and after carrying out mud-water separation in depositing reservoir, the mud of generation is through de-
Processing further after water, the supernatant that depositing reservoir produces adds hydrochloric acid, wastewater pH is adjusted to 6～9, final qualified discharge.
In whole desulfurization processing procedure, through adjusting, the sludge containing heavy metal amount that ton water produces is reduced to 10 kilograms, and by dirt
Mud splits process, and its processing cost can reduce by 50% by more conventional three header method desulfuration waste water treatment process.
Claims (6)
1. the desulfurizing waste water processing device of one kind low mud generation amount, it is characterised in that including:
With a preliminary sedimentation tank of a desulfurization wastewater water pipeline connection, bottom it, it is provided with one first spoil disposal pipeline；
One first flocculation tank connected with described preliminary sedimentation tank, is provided with one first medicament addition device；
One first depositing reservoir connected with described first flocculation tank, is provided with one second spoil disposal pipeline bottom it；
Described first spoil disposal pipeline and the second spoil disposal pipeline communication to a gypsum dehydration machine, described gypsum dehydration facility have a filtrate outlet, and described filtrate outlet is connected with described first flocculation tank by a reflux pipe；
One connected with described first depositing reservoir removes reprecipitation pond group.
The desulfurizing waste water processing device of low mud generation amount the most as claimed in claim 1, it is characterised in that described include except reprecipitation pond group:
One connected with described first depositing reservoir, except weight reaction tank, is provided with one second medicament addition device；
With described one second flocculation tank connected except weight reaction tank, it is provided with one the 3rd medicament addition device；
One second depositing reservoir connected with described second flocculation tank, is provided with one the 3rd spoil disposal pipeline bottom it；
The outlet pipeline connected with described second depositing reservoir overflow, is provided with one the 4th medicament addition device.
The desulfurizing waste water processing device of low mud generation amount the most as claimed in claim 2, it is characterised in that described first flocculation tank, be provided with liquid mixing device except weight reaction tank and the second flocculation tank.
The desulfurizing waste water processing device of low mud generation amount the most as claimed in claim 3, it is characterised in that described liquid loads in mixture and is set to an agitating device or an aerator.
The desulfurizing waste water processing device of low mud generation amount the most as claimed in claim 2, it is characterized in that, the bottom of described preliminary sedimentation tank, the first depositing reservoir and the second depositing reservoir is bucket-shaped, described bucket-shaped most advanced and sophisticated connection the first spoil disposal pipeline, the second spoil disposal pipeline or the 3rd spoil disposal pipeline.
The desulfurizing waste water processing device of low mud generation amount the most as claimed in claim 1, it is characterised in that be provided with mud scum baffle plate in described preliminary sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156363.9U CN205590456U (en) | 2016-03-01 | 2016-03-01 | Desulfurization wastewater treatment device of low mud production volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156363.9U CN205590456U (en) | 2016-03-01 | 2016-03-01 | Desulfurization wastewater treatment device of low mud production volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205590456U true CN205590456U (en) | 2016-09-21 |
Family
ID=56928061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620156363.9U Active CN205590456U (en) | 2016-03-01 | 2016-03-01 | Desulfurization wastewater treatment device of low mud production volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205590456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692959A (en) * | 2016-03-01 | 2016-06-22 | 大唐环境产业集团股份有限公司 | Low-sludge-output desulfurization waste water treatment device and method |
| CN111453961A (en) * | 2020-05-29 | 2020-07-28 | 石家庄航全矿产品有限公司 | Integrated process for continuously dredging sediment in situ |
-
2016
- 2016-03-01 CN CN201620156363.9U patent/CN205590456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692959A (en) * | 2016-03-01 | 2016-06-22 | 大唐环境产业集团股份有限公司 | Low-sludge-output desulfurization waste water treatment device and method |
| WO2017148229A1 (en) * | 2016-03-01 | 2017-09-08 | 大唐环境产业集团股份有限公司 | Low-sludge-production desulfurization wastewater treatment apparatus and method |
| CN111453961A (en) * | 2020-05-29 | 2020-07-28 | 石家庄航全矿产品有限公司 | Integrated process for continuously dredging sediment in situ |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105692959B (en) | A kind of desulfurizing waste water processing device and method of low sludge yield | |
| CN105621742B (en) | Desulfurization wastewater sofening treatment device and method | |
| WO2017133513A1 (en) | Treatment apparatus and method for softening desulfurization wastewater | |
| CN104761079A (en) | Flue gas desulfurization wastewater treatment process for coal-fired boiler | |
| CN102964032B (en) | Device and method for bypass phosphorus recovery of town sewage treatment plant | |
| CN206142939U (en) | Chemical nickel wastewater treatment device | |
| CN103693770A (en) | Purifying device for wet-process flue gas desulfurization wastewater and using method thereof | |
| CN107285489A (en) | A kind of device and method of desulfurization wastewater pretreatment | |
| CN207294423U (en) | A kind of high magnesium low calcium desulfurization wastewater softening pretreatment unit | |
| CN105967389A (en) | Desulfurization waste water sludge separation and salt separation zero-emission pretreatment system and process | |
| CN106938866A (en) | A kind of desulfurization wastewater resource utilization system and method | |
| CN106517585A (en) | Method for staged removal of thallium from high thallium wastewater | |
| CN205590456U (en) | Desulfurization wastewater treatment device of low mud production volume | |
| CN103011462B (en) | Device and method for treating waste residues of circulating make-up water by reutilizing lime softening method of power plant | |
| CN103193370A (en) | Phosphorus recovery device for excess sludge | |
| CN107265696A (en) | A kind of desulfurization wastewater sofening treatment device and method | |
| CN103880042A (en) | Brine refinement technique | |
| CN206127018U (en) | Pretreatment systems suitable for thermal power plant's desulfurization waste water | |
| CN110272147A (en) | Copper ore dressing wastewater treatment and renovation device and method | |
| CN203112675U (en) | System for reclaiming phosphorus from residual sludge | |
| CN204111467U (en) | A kind of Novel desulphurization Waste Water Treatment | |
| CN205556299U (en) | Desulfurization waste water softens processing apparatus | |
| CN207121501U (en) | A kind of hardness removing device suitable for the hard waste water of high magnesium | |
| CN206901925U (en) | The device of novel desulphurization wastewater treatment | |
| CN109095483A (en) | A kind of system and its application method of oxalate precipitation method recycling power plant desulfurization wastewater calcium and magnesium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |