CN106746016A - A kind of method and apparatus for processing waste water - Google Patents
A kind of method and apparatus for processing waste water Download PDFInfo
- Publication number
- CN106746016A CN106746016A CN201710019894.2A CN201710019894A CN106746016A CN 106746016 A CN106746016 A CN 106746016A CN 201710019894 A CN201710019894 A CN 201710019894A CN 106746016 A CN106746016 A CN 106746016A
- Authority
- CN
- China
- Prior art keywords
- pond
- waste water
- demagging
- deliming
- sulphur removal
- 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
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
- C02F1/52—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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- 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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F2209/19—SO4-S
-
- 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
- C02F5/02—Softening water by precipitation of the hardness
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention provides a kind of method for processing waste water, it would be desirable to which the waste water for the treatment of is imported into a preformed precipitate pond, by natural sedimentation or feeding lime by the suspension in waste water and part SO4 2‑Precipitation removal；Supernatant in preformed precipitate pond is imported into a demagging sulphur removal pond, NaOH and aluminium salt are added in demagging sulphur removal pond, the magnesium ion and calcium ion in NaOH and aluminium salt and waste water form houghite precipitation；Waste water after above-mentioned treatment is imported into a demagging sulphur removal sedimentation basin, the supernatant after separation of solid and liquid is imported into a deliming reaction tank, calcium remover reaction generation calcium carbonate is added in deliming reaction tank；Waste water after above-mentioned treatment is imported into a deliming sedimentation basin, the supernatant after separation of solid and liquid is imported into a neutralization pond, in acid adding and after enter subsequent processing units.Additionally provide the device for realizing above-mentioned method of wastewater treatment.The present invention can efficiently remove sulfate radical and realize that the hardness of waste water softens.
Description
Technical field
The invention belongs to chemical field, it is related to the technology of a kind of environmental protection and water resources rational use, specifically
A kind of method and apparatus for processing waste water.
Background technology
As the problem that water pollution is brought is increasingly serious, wastewater treatment is increasingly taken seriously with recycling.2015
What year put into effect《Water prevention and cure of pollution action plan》Clearly propose " to strengthen industrial water circulation to utilize.Propulsion mine water comprehensive utilization, coal
The supplement water in charcoal mining area, surrounding area are produced and ecological water should preferentially use mine water, are strengthened coal washing waste water and are recycled.
Encourage the highly water intensive enterprise wastewater advanced treatment and reclamations such as steel, textile printing and dyeing, papermaking, petroleum and petrochemical industry, chemical industry, process hides ", and require
" possess using projects such as steel, thermoelectricity, chemical industry, pulping and paper-making, the printing and dyeing for regenerating water condition but underusing, must not ratify
Its newly-increased water drawal permission." therefore, utilization of wastewater resource is developed into current thermoelectricity, petroleum and petrochemical industry, change with zero-discharge technology
The hot issue of the industries such as work, steel research and development.The Deep of waste water is utilized and generally uses membrane technology, and zero-emission then needs
The combination of membrane technology and evaporative crystallization technique.However, in many industrial wastewaters generally existing high concentration hardness ions and sulfuric acid
Salt, easily separates out in film concentration or evaporation and crystal process into dirt, causes serious membrane pollution problem, and influence evaporator
Heat transfer efficiency.For the technique of zero discharge that target is recovered as with Nacl, too high hardness and sulfate ion can influence salt again
Purity.Therefore, the removal of hardness ions and sulfate radical is the key of current technique of zero discharge technological development.
Calcium, magnesium ion removal difficulty are relatively low, can form precipitation with carbonate and hydroxyl respectively and remove.For sulfuric acid
For root, because calcium sulfate solubility product is very high, using sulfate radical in waste water levels after calcium precipitation generally very it is high (>
1000mg/L).Therefore, the sulfate radical removal technology of exploitation efficient stable is both the focal issue in hardness ions removal, is again
Its difficulties.Patent of invention " a kind of resource integrated pretreating process of desulfurization wastewater " (application number 201610304236.3) is public
Sulfate radical removal and recycling sludge technique in a kind of desulfurization wastewater of cloth, the technique using add NaOH preformed precipitate magnesium from
Son, then the method that sulfate radical is removed using entringite.Although effectively, technological process is more long, and operational management is more multiple for the method
It is miscellaneous.
The content of the invention
For above-mentioned technical problem of the prior art, the invention provides a kind of method and apparatus for processing waste water, institute
The method and apparatus of this treatment waste water stated to solve to remove sulfate ion in the prior art and the technique of softening waste water is answered
It is miscellaneous, the technical problem of effect on driving birds is not good.
The invention provides a kind of method for processing waste water, comprise the following steps：
1) need to waste water to be processed imported into a preformed precipitate pond, by natural sedimentation or feeding lime by waste water
In suspension and part SO4 2-Precipitation removal；
2) by step 1) treatment after preformed precipitate pond in supernatant imported into a demagging sulphur removal pond, removed in described
NaOH and aluminium salt are added in magnesium sulphur removal pond, the magnesium ion and calcium ion in NaOH and aluminium salt and waste water form class neatly
Stone is precipitated；
3) by step 2) treatment after waste water imported into a demagging sulphur removal sedimentation basin, the supernatant after separation of solid and liquid is led
Enter in a deliming reaction tank, calcium remover reaction generation calcium carbonate is added in described deliming reaction tank；
4) by step 3) treatment after waste water imported into a deliming sedimentation basin, the supernatant after separation of solid and liquid imported into
In one neutralization pond, in acid adding and after enter subsequent processing units.
Further, in step 1) in, described preformed precipitate pond controls the pH in preformed precipitate pond to be by feeding lime
6.5~9.5；
Further, in step 2) in, described demagging sulphur removal pond by adding NaOH, in control demagging sulphur removal pond
PH be 8.0~12.5.
Further, in step 2) in, the mol ratio of the sulfate radical in the aluminium salt of addition and demagging sulphur removal pond for 1.0~
4.0：1.
Further, in step 3) in, described calcium remover is sodium carbonate or sodium acid carbonate, sodium carbonate or sodium acid carbonate with
The mol ratio of calcium ion is 0.8~2.0 in waste water：1.
Further, in step 3) in, discharge flue gas is introduced directly into, using the carbon dioxide deliming in flue gas, titanium dioxide
Carbon is 0.8~2.0 with the mol ratio of calcium ion in waste water：1.
Present invention also offers the device for realizing above-mentioned method of wastewater treatment, including a preformed precipitate pond, described preliminary sedimentation
Shallow lake pond and a demagging sulphur removal pond connection, described demagging sulphur removal pond and a demagging sulphur removal sedimentation basin connection, described demagging
Sulphur removal sedimentation basin and a deliming reaction tank connection, described deliming reaction tank and a deliming sedimentation basin connection, described removes
Calcium precipitate pond and a neutralization pond connection, described preformed precipitate pond also connect with first dosing tank, described demagging sulphur removal
Pond also respectively with second dosing tank and the connection of the 3rd dosing tank, described deliming reaction tank also with the 4th dosing
Case is connected.
Further, described demagging sulphur removal pond is additionally provided with a pH meter and first agitating device.
Further, described deliming reaction tank is additionally provided with second agitating device.
In preformed precipitate pond, add calcium oxide and adjust pH to more than 6.5, sulfuric acid can also be formed while removing oil removal
Calcium removes part of sulfuric acid root, and reaction equation is as follows：
Ca2++SO4 2-=CaSO4↓ (1)
In demagging sulphur removal pond, add aluminium salt and adjust pH to more than 8.0 with NaOH, by the magnesium ion in waste water and
Calcium ion forms houghite precipitation.Its reaction equation：
Al3++4OH-=AlO2 -+2H2O=Al (OH)4 - (2)
Al(OH)4 -+2OH-=Al (OH)6 3- (3)
2Al(OH)6 3-+6Ca2++24H2O={ Ca [Al (OH)6]2·24H2O}6+ (4)
{Ca6[Al(OH)6]2·24H2O}6++3SO4 2-+2H2O=Ca6[Al(OH)6]2(SO4)3·26H2O↓ (5)
Mg2++4OH-=Mg (OH)4 2- (6)
6Mg(OH)4 2-+2Al(OH)4 -+SO4 2-+mH2O=[Mg6Al2(OH)16](SO4)·mH2O↓+16OH- (7)
In demagging sulphur removal pond, houghite can be formed prior to entringite and precipitated, therefore reaction tank control is rational
PH scopes can realize the efficient removal of magnesium ion.At the same time, excessive calcium ion can realize the height of sulfate radical in maintaining to intake
Effect removal.Because calcium hydroxide solubility product is very high, calcium ion is difficult to form calcium hydroxide.Therefore, the sediment in demagging sulphur removal pond
Based on houghite, some industrial wastewaters also contain part heavy metal co-precipitate to composition.
Because demagging sulphur removal pond cannot thoroughly remove calcium ion, in deliming reaction tank to the waste water in strong basicity in add
Carbonate calcium remover, can be converted into calcium carbonate removal by calcium ion.Its reaction equation is
Ca2++CO3 2-=CaCO3↓(Ksp=8.7 × 10-9) (9)
If carbonate is 1 with calcium ion mol ratio:1 adds, then the theoretical concentration of calcium ion is
Therefore, calcium ion concentration is 3.7mg/L in waste water under the conditions of being somebody's turn to do.A large amount of calcium ions can enter as calcium carbonate
In deliming reaction tank sediment.
Analysis understands that preformed precipitate bottom of pond stream sediment main component (in power plant, can be flowed back for gypsum according to more than
Utilized into flue gas desulphurization system cyclone)；Demagging sulphur removal sedimentation basin underflow sediment composition be houghite and entringite, can
Recycle.Houghite purification after can apply in agricultural film, with it is anti-reflection, sustained release, insulation cooperateed with light stabilizer and
The advantages of heat stabilization.Deliming sedimentation basin underflow sediment main component (is being provided with wet method fume desulfurizing system for calcium carbonate
Enterprise in, can be back in desulfurization slurry case, as desulfurizing agent be used for flue gas desulfurization).
Beneficial effects of the present invention：
(1) as the hardness sofening treatment unit of current wastewater zero discharge system, the desalinations such as film concentration, evaporation are effectively prevented
The scale problems of unit；
(2) preformed precipitate pond is set before softening, sl. sol. calcium sulfate precipitation thing is formed by adding cheap lime, reduce
The reagent cost of follow-up houghite or entringite sulfate radical；
(3) demagging and sulfate radical are preferentially gone with houghite precipitated form, using the sulfate radical of entringite removal residual,
The final efficient removal that sulfate radical and magnesium ion are realized in demagging sulphur removal pond；
(4) the efficient of calcium ion is realized by two kinds of sediments of entringite and calcium carbonate in demagging sulphur removal pond and deliming pond
Removal；
(5) according to the medicament resource situation around different wastewater zero discharge systems, propose to use sodium acid carbonate or flue gas (two
Carbonoxide) deliming new approaches, the alkalescence of water outlet is reduced while calcium ion is removed, reduce the consumption of neutralization pond hydrochloric acid；
(6) less reaction tank and sedimentation basin is realized by process optimization, calcium and magnesium is realized during Wastewater Pretreatment
High-purity is reclaimed and the high-purity of desulfurizing agent (calcium carbonate) is independently reclaimed, with significant economic benefit.
The present invention is compared with prior art, and its technological progress is significant.The present invention is directed to existing sulfate radical removal technology
Defect, the present invention proposes to realize the technological process of the synchronous removal of calcium, magnesium and sulfate radical using houghite mixed sediment, with
The operation stability of wastewater membrane concentration and evaporation element is ensured, the Zero discharging system to requiring to reclaim Nacl can then improve industry
Salt quality.The technology has the advantages that reliable, efficiency high, low cost, has for water affairs management and " zero-emission "
Highly important meaning.Technological principle of the invention is dramatically different with patent 201610304236.3, and flow is more brief, operation
Management is easy, can efficiently remove sulfate radical and realize that hardness softens.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the structural representation of the device for the treatment of waste water of the invention.1 is preformed precipitate pond, and 2 is the first dosing tank, and 3 are
Demagging sulphur removal pond, 4 is the second dosing tank, and 5 is the 3rd dispensing kit, and 6 is demagging sulphur removal sedimentation basin, and 7 is deliming reaction tank, and 8 is the
Four dosing tanks, 9 is deliming sedimentation basin and 10 is neutralization pond.
Specific embodiment
Below in conjunction with the accompanying drawings 1 and specific embodiment the present invention is described in detail.
Embodiment 1
The invention provides a kind of method for processing waste water, following steps are specifically included：
Waste water after collection, is added according to the excessive lime of sulfate radical removal forecast, the pH in control preformed precipitate pond
It is 6.5~9.5, enters in preformed precipitate pond 1 after being well mixed and realize separation of solid and liquid.Supernatant flows into demagging sulphur removal after separation of solid and liquid
In pond 3.
To adding NaOH in demagging sulphur removal pond 3 and with the mol ratio of sulfate radical be 1.0~4.0：1 aluminium salt, it is and pre-
After sedimentation basin water outlet is sufficiently mixed, regulation pH is 8.0~12.5, the magnesium ion in waste water, calcium ion is converted into houghite
With entringite sediment, and separation of solid and liquid is realized in demagging sulphur removal sedimentation basin 6, supernatant flow to deliming reaction tank 7.With class water
Talcum is recycled for the sediment of main component using after frame dehydration.
Added in deliming reaction tank 7 a certain proportion of calcium remover (sodium carbonate, sodium acid carbonate are passed through carbon dioxide,
The carbonate for adding is 0.8~2.0 with the mol ratio of calcium ion：1).It is sufficiently mixed with demagging sulphur removal pond water outlet, calcium ion is turned
Precipitation of calcium carbonate is turned to, is entered in deliming sedimentation basin 9 after reaction and is realized separation of solid and liquid, the main component of precipitation is calcium carbonate.On
Clear liquid flows into neutralization pond 10, and regulating water quality is neutral and then water outlet.
Realize the device of the above method, including a preformed precipitate pond 1, described preformed precipitate pond 1 and a demagging sulphur removal pond 3
Connection, described demagging sulphur removal pond 3 and a demagging sulphur removal sedimentation basin 6 connect, and described demagging sulphur removal sedimentation basin 6 and one remove
Calcium reaction tank 7 is connected, and described deliming reaction tank 7 and a deliming sedimentation basin 9 are connected, described deliming sedimentation basin 9 and one
Neutralization pond 10 is connected, described preformed precipitate pond 1 also and the first dosing tank connection, described demagging sulphur removal pond 3 also respectively and
One the second dosing tank 4 and the 3rd dosing tank 5 are connected, and described deliming reaction tank 7 is also connected with the 4th dosing tank.
Further, described demagging sulphur removal pond 3 is additionally provided with a pH meter and first agitating device.
Further, described deliming reaction tank 7 is additionally provided with second agitating device.
Embodiment 2
Coal,steam plant with FGD waste water, raw water quality is Mg2+Concentration 800mg/L, Ca2+Concentration 2000mg/L, SO4 2-
Concentration 3000mg/L.2.5g/L lime is added in preformed precipitate pond 1 using patented technology of the present invention, is thrown in demagging sulphur removal pond 3
Plus 15g/L aluminium salt and adjust pH to 11.0, and added in deliming pond 7 0.2g/L sodium carbonate reaction after, water outlet Mg2+Concentration
0.1mg/L, Ca2+Concentration 1.12mg/L, SO4 2-Concentration 276.77mg/L.Mg2+And Ca2+Clearance is above 99.9%, SO4 2-Go
Except rate is 92.3%.
Embodiment 3
Garbage burning factory nanofiltration concentrate, raw water quality is Mg2+Concentration 432mg/L, Ca2+Concentration 104mg/L, SO4 2-It is dense
Degree 5492mg/L.Because containing large amount of organic, being unfavorable for the removal of sulfate radical, so the side coupled using coagulation and oxidant
Method removes partial organic substances, and water outlet enters the preformed precipitate pond of the technology of the present invention.Using patented technology of the present invention in preformed precipitate pond 1
7.9g/L lime is added, the aluminium salt of 34.5g/L is added in demagging sulphur removal pond 3 and pH to 11.0 is adjusted, and thrown in deliming pond 7
Plus after the sodium carbonate reaction of 0.1g/L, effluent quality is Mg2+Concentration 2.1mg/L, Ca2+Concentration 0.3mg/L, SO4 2-Concentration
1191.44mg/L。Mg2+And Ca2+Clearance is respectively 99.99% and 99.71%, SO4 2-Clearance is 78.3%.
Embodiment 4
Garbage burning factory reverse osmosis concentrated liquid, raw water quality Mg2+Concentration 302.4mg/L, Ca2+Concentration 108mg/L, SO4 2-
Concentration 954.45mg/L.1.2g/L lime is added in preformed precipitate pond 1 using patented technology of the present invention, in demagging sulphur removal pond 3
Add the aluminium salt of 4.8g/L and adjust pH to 11.0, and added in deliming pond 7 0.1g/L sodium carbonate reaction after, effluent quality
Without Mg2+And Ca2+, SO4 2-Concentration 162.51mg/L, calcium and magnesium is removed completely, SO4 2-Clearance 83.0%.
Embodiment 5
Coal chemical industrial waste water, raw water quality Mg2+Concentration 302mg/L, Ca2+Concentration 460mg/L, HCO3 -Concentration 600mg/L,
SO4 2-Concentration 2184mg/L.3.4g/L lime is added in preformed precipitate pond 1 using patented technology of the present invention, in demagging sulphur removal pond 3
In add the aluminium salt of 11.0g/L and adjust pH to 11.0, and after the sodium carbonate reaction of 0.9g/L is added in deliming pond 7, water outlet
Concentration Mg2+Concentration 0.4mg/L, Ca2+Concentration 24mg/L, without HCO3 -, SO4 2-Concentration 302.64mg/L.Mg2+And Ca2+Clearance point
Wei 99.87% and 94.78%, HCO3 -Remove completely, SO4 2-Clearance 85.14%.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be with difference.All equivalent or simple changes done according to the described construction of specially design of the invention, feature and principle, include
In in the protection domain of patent of the present invention.Those skilled in the art can be to described specific embodiment
Make various modifications or supplement or substituted using similar mode, without departing from structure of the invention or surmount this power
Scope defined in sharp claim, all should belong to protection scope of the present invention.
Claims (9)
1. it is a kind of process waste water method, it is characterised in that comprise the following steps：
1）Need to waste water to be processed imported into a preformed precipitate pond, by natural sedimentation or feeding lime by waste water
Suspension and part SO4 2-Precipitation removal；
2）By step 1）The supernatant in preformed precipitate pond after treatment is imported into a demagging sulphur removal pond, is removed in described demagging
NaOH and aluminium salt are added in sulphur pond, the magnesium ion and calcium ion in NaOH and aluminium salt and waste water form houghite and sink
Form sediment；
3）By step 2）Waste water after treatment is imported into a demagging sulphur removal sedimentation basin, and the supernatant after separation of solid and liquid imported into
In one deliming reaction tank, calcium remover reaction generation calcium carbonate is added in described deliming reaction tank；
4）By step 3）Waste water after treatment is imported into a deliming sedimentation basin, and the supernatant after separation of solid and liquid imported into one
In neutralization pond, in acid adding and after enter subsequent processing units.
2. it is according to claim 1 it is a kind of process waste water method, it is characterised in that：In step 1）In, described preliminary sedimentation
By feeding lime, it is 6.5 ~ 9.5 to control the pH in preformed precipitate pond in shallow lake pond.
3. it is according to claim 1 it is a kind of process waste water method, it is characterised in that：In step 2）In, described demagging
By adding NaOH, it is 8.0 ~ 12.5 to control the pH in demagging sulphur removal pond in sulphur removal pond.
4. it is according to claim 1 it is a kind of process waste water method, it is characterised in that：In step 2）In, the aluminium salt of addition
It is 1.0 ~ 4.0 with the mol ratio of the sulfate radical in demagging sulphur removal pond：1.
5. it is according to claim 1 it is a kind of process waste water method, it is characterised in that：In step 3）In, described deliming
Agent is sodium carbonate or sodium acid carbonate, and sodium carbonate or sodium acid carbonate and the mol ratio of calcium ion in waste water are 0.8 ~ 2.0：1.
6. it is according to claim 1 it is a kind of process waste water method, it is characterised in that：In step 3）In, the row of being introduced directly into
Flue gas is put, using the carbon dioxide deliming in flue gas, carbon dioxide is 0.8 ~ 2.0 with the mol ratio of calcium ion in waste water：1.
7. the device of the method for wastewater treatment described in the claims 1 is realized, it is characterised in that：Including a preformed precipitate pond,
Described preformed precipitate pond and a demagging sulphur removal pond connection, described demagging sulphur removal pond and a demagging sulphur removal sedimentation basin connection,
Described demagging sulphur removal sedimentation basin and a deliming reaction tank connection, described deliming reaction tank and a deliming sedimentation basin connect
Connect, described deliming sedimentation basin and a neutralization pond are connected, described preformed precipitate pond also connects with first dosing tank, described
Demagging sulphur removal pond also respectively with second dosing tank and the connection of the 3rd dosing tank, described deliming reaction tank is also with one
Individual 4th dosing tank connection.
8. device according to claim 7, it is characterised in that：Described demagging sulphur removal pond is additionally provided with a pH meter and one
Individual first agitating device.
9. device according to claim 7, it is characterised in that：Described deliming reaction tank is additionally provided with one second stirring
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019894.2A CN106746016A (en) | 2017-01-11 | 2017-01-11 | A kind of method and apparatus for processing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019894.2A CN106746016A (en) | 2017-01-11 | 2017-01-11 | A kind of method and apparatus for processing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106746016A true CN106746016A (en) | 2017-05-31 |
Family
ID=58947475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710019894.2A Pending CN106746016A (en) | 2017-01-11 | 2017-01-11 | A kind of method and apparatus for processing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106746016A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191003A (en) * | 2017-12-29 | 2018-06-22 | 欧群飞 | A kind of electrolytic processing method of containing sulfate radicals waste water |
| CN109095578A (en) * | 2018-10-30 | 2018-12-28 | 华北电力大学（保定） | A kind of method of oxalate precipitation method recycling power plant desulfurization wastewater calcium and magnesium |
| CN110002654A (en) * | 2019-05-13 | 2019-07-12 | 浙江嘉化新材料有限公司 | A kind of high-salt wastewater discharge treating system |
| CN110590040A (en) * | 2019-09-30 | 2019-12-20 | 江苏源拓环境科技有限公司 | Wastewater treatment method and wastewater treatment system |
| CN111028895A (en) * | 2019-11-19 | 2020-04-17 | 中国石油天然气集团有限公司 | Method for calculating softening dosage of traditional Chinese medicine in water treatment process |
| CN111689608A (en) * | 2020-06-18 | 2020-09-22 | 上海电力大学 | Desulfurization wastewater zero-discharge pretreatment process based on three-alkali method |
| CN111868274A (en) * | 2018-03-08 | 2020-10-30 | 恩吉泰克技术股份公司 | Method for recovering lead from lead paste and use thereof in a method for recovering lead-acid battery components |
| CN112010454A (en) * | 2019-05-30 | 2020-12-01 | 上海顺樊环保科技有限公司 | Electroplating nickel-containing wastewater treatment and recovery method |
| CN112429882A (en) * | 2020-12-03 | 2021-03-02 | 南宁市泽威尔饲料有限责任公司 | Method and device for treating ferrous fumarate wastewater |
| CN112939296A (en) * | 2021-03-26 | 2021-06-11 | 国能朗新明环保科技有限公司 | Method for removing sulfate radical in wastewater by electrochemical method |
| CN113582415A (en) * | 2021-07-27 | 2021-11-02 | 武汉大学 | Desalination treatment method of reverse osmosis concentrated water |
| CN115745248A (en) * | 2022-11-11 | 2023-03-07 | 太原碧蓝水利工程设计股份有限公司 | Method for treating coal mine acidic wastewater and resource utilization method |
| CN116789281A (en) * | 2023-07-10 | 2023-09-22 | 中企国云环保科技有限公司 | Softening treatment method for high-hardness high-alkalinity wastewater |
| CN117923724A (en) * | 2024-03-11 | 2024-04-26 | 郑州恒博环境科技股份有限公司 | Sulfate wastewater treatment system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016113600A (en) * | 2014-12-10 | 2016-06-23 | 宇部興産株式会社 | Solidifying material for residue formed by neutralizing acid water, solidified material of residue formed by neutralizing acid water and method for solidifying residue formed by neutralizing acid water |
| CN105948198A (en) * | 2016-05-17 | 2016-09-21 | 南昌大学 | Treatment method of sulfate wastewater |
| CN106007046A (en) * | 2016-05-10 | 2016-10-12 | 上海电力学院 | Resource pretreatment technology for desulfurization waste water hardness ions |
-
2017
- 2017-01-11 CN CN201710019894.2A patent/CN106746016A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016113600A (en) * | 2014-12-10 | 2016-06-23 | 宇部興産株式会社 | Solidifying material for residue formed by neutralizing acid water, solidified material of residue formed by neutralizing acid water and method for solidifying residue formed by neutralizing acid water |
| CN106007046A (en) * | 2016-05-10 | 2016-10-12 | 上海电力学院 | Resource pretreatment technology for desulfurization waste water hardness ions |
| CN105948198A (en) * | 2016-05-17 | 2016-09-21 | 南昌大学 | Treatment method of sulfate wastewater |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191003A (en) * | 2017-12-29 | 2018-06-22 | 欧群飞 | A kind of electrolytic processing method of containing sulfate radicals waste water |
| CN111868274A (en) * | 2018-03-08 | 2020-10-30 | 恩吉泰克技术股份公司 | Method for recovering lead from lead paste and use thereof in a method for recovering lead-acid battery components |
| US11667990B2 (en) | 2018-03-08 | 2023-06-06 | Engitec Technologies S.P.A. | Process for recovering lead from a lead pastel and use thereof in a process for recovering lead-acid accumulator components |
| CN109095578B (en) * | 2018-10-30 | 2021-10-29 | 华北电力大学（保定） | Method for recovering calcium and magnesium in power plant desulfurization wastewater by oxalic acid precipitation method |
| CN109095578A (en) * | 2018-10-30 | 2018-12-28 | 华北电力大学（保定） | A kind of method of oxalate precipitation method recycling power plant desulfurization wastewater calcium and magnesium |
| CN110002654A (en) * | 2019-05-13 | 2019-07-12 | 浙江嘉化新材料有限公司 | A kind of high-salt wastewater discharge treating system |
| CN112010454A (en) * | 2019-05-30 | 2020-12-01 | 上海顺樊环保科技有限公司 | Electroplating nickel-containing wastewater treatment and recovery method |
| CN110590040A (en) * | 2019-09-30 | 2019-12-20 | 江苏源拓环境科技有限公司 | Wastewater treatment method and wastewater treatment system |
| CN110590040B (en) * | 2019-09-30 | 2023-08-25 | 江苏源拓环境科技有限公司 | Wastewater treatment method and wastewater treatment system |
| CN111028895B (en) * | 2019-11-19 | 2023-06-16 | 中国石油天然气集团有限公司 | Calculation method of softening dosage of medicament in water treatment process |
| CN111028895A (en) * | 2019-11-19 | 2020-04-17 | 中国石油天然气集团有限公司 | Method for calculating softening dosage of traditional Chinese medicine in water treatment process |
| CN111689608A (en) * | 2020-06-18 | 2020-09-22 | 上海电力大学 | Desulfurization wastewater zero-discharge pretreatment process based on three-alkali method |
| CN112429882B (en) * | 2020-12-03 | 2023-01-20 | 南宁市泽威尔饲料有限责任公司 | Method and device for treating ferrous fumarate wastewater |
| CN112429882A (en) * | 2020-12-03 | 2021-03-02 | 南宁市泽威尔饲料有限责任公司 | Method and device for treating ferrous fumarate wastewater |
| CN112939296A (en) * | 2021-03-26 | 2021-06-11 | 国能朗新明环保科技有限公司 | Method for removing sulfate radical in wastewater by electrochemical method |
| CN113582415A (en) * | 2021-07-27 | 2021-11-02 | 武汉大学 | Desalination treatment method of reverse osmosis concentrated water |
| CN115745248A (en) * | 2022-11-11 | 2023-03-07 | 太原碧蓝水利工程设计股份有限公司 | Method for treating coal mine acidic wastewater and resource utilization method |
| CN116789281A (en) * | 2023-07-10 | 2023-09-22 | 中企国云环保科技有限公司 | Softening treatment method for high-hardness high-alkalinity wastewater |
| CN116789281B (en) * | 2023-07-10 | 2024-05-31 | 中企国云环保科技有限公司 | Softening treatment method for high-hardness high-alkalinity wastewater |
| CN117923724A (en) * | 2024-03-11 | 2024-04-26 | 郑州恒博环境科技股份有限公司 | Sulfate wastewater treatment system and method |
| CN117923724B (en) * | 2024-03-11 | 2024-08-02 | 郑州恒博环境科技股份有限公司 | Sulfate wastewater treatment system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106746016A (en) | A kind of method and apparatus for processing waste water | |
| CN110668540B (en) | High-salinity wastewater precipitation desalination recycling process | |
| WO2017133511A1 (en) | Treatment apparatus and method for zero liquid discharge of desulfurization wastewater | |
| CN107619137B (en) | Method for recycling calcium and magnesium in desulfurization wastewater by carbonization method | |
| CN105621742B (en) | Desulfurization wastewater sofening treatment device and method | |
| WO2017133513A1 (en) | Treatment apparatus and method for softening desulfurization wastewater | |
| CN108623050A (en) | A kind of processing method and processing system of desulfurization wastewater | |
| CN106830479A (en) | Using flue gas and electrodialytic desulfurization wastewater zero-discharge treatment system and method | |
| CN109095578B (en) | Method for recovering calcium and magnesium in power plant desulfurization wastewater by oxalic acid precipitation method | |
| CN107673514A (en) | Sulfate radical removes the Waste Water Treatment utilized with recycling sludge and processing method | |
| CN106830425A (en) | It is a kind of to remove system and its technique that sulfate radical in waste water recycles sediment | |
| CN105540960A (en) | Treatment method and treatment system for wastewater produced during flue gas desulfurization adopting limestone/lime-gypsum method | |
| CN107758962A (en) | A kind of system of the preparing magnesium sulfate from desulfurization wastewater | |
| CN107089744B (en) | A kind of method of desulfurization wastewater advanced treating zero-emission | |
| CN107915354A (en) | A kind of desulfurization wastewater zero-emission and resource utilization device and method | |
| CN105621776A (en) | Treatment method for coal boiler fuel gas wet desulfurization wastewater | |
| CN202924865U (en) | Membrane-process treatment recycling system for desulfurization waste water | |
| CN105347592B (en) | A kind of recycling and zero discharge treatment process of desulfurization wastewater | |
| CN205653287U (en) | Device that zero release of desulfurization waste water was handled | |
| CN107285489A (en) | A kind of device and method of desulfurization wastewater pretreatment | |
| US10358355B2 (en) | Aluminum hydroxide coagulant recovery from water/wastewater treatment sludge | |
| CN111777220A (en) | Novel softening treatment method for high-salinity and high-permanent-hardness wastewater | |
| CN105254066A (en) | Treatment device and method capable of achieving waste water zero discharge of power plant with large water volume | |
| CN107265696A (en) | A kind of desulfurization wastewater sofening treatment device and method | |
| CN105692986B (en) | A kind of processing method of abraum salt comprehensive utilization |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |