CN108675568A - A kind of Lithium Battery Industry waste water purification system - Google Patents
A kind of Lithium Battery Industry waste water purification system Download PDFInfo
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- CN108675568A CN108675568A CN201810769844.0A CN201810769844A CN108675568A CN 108675568 A CN108675568 A CN 108675568A CN 201810769844 A CN201810769844 A CN 201810769844A CN 108675568 A CN108675568 A CN 108675568A
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- 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
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- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of Lithium Battery Industry waste water purification systems, including acid-base neutralization unit, coagulation-flocculation precipitation unit and oxygen membrane biological reaction unit and lithium battery production wastewater storage tank, alkaline waste water storage tank, acid waste water storage tank, sanitary wastewater storage tank.This system improves the biodegradability of lithium battery waste water, simple process and low cost using pattern associated with acid-base neutralization unit, coagulation-flocculation precipitation unit and oxygen membrane biological reaction unit；The combination for realizing three kinds of wastewater treatments of lithium battery manufacturing enterprise simultaneously, can handle three classes waste water, simplify technique, the equipment of reduction, the overlapping investment of medicament save operating cost simultaneously.In addition the acid-base neutralization unit in this system, is only simply neutralized, and additional medicament is not added.Acid-base accommodation first is carried out with lithium battery production waste water using the also remaining acid-base property of the waste water neutralized later, then is optionally added into acid-base modifier.Equipment and the input of medicament are saved in this way, the process for decreasing production.
Description
Technical field
The present invention relates to field of waste water treatment more particularly to a kind of purification systems of Lithium Battery Industry waste water.
Background technology
Lithium battery is more and more widely used in daily life.As a kind of energy of relative clean, it has become one
A important product battery industry development.Waste water caused by lithium battery production plant mainly has 3 classes at present.The first kind is negative and positive
The waste water containing acid, alkali generated when ion exchange resin regeneration treatment, pollutant is mainly based on pH；Second class be lithium battery production with
And the waste water of the generations such as non-conservation tank, pipeline cleaning, such waste water contain N-Methyl pyrrolidone（NMP）, Kynoar
（PVDF）, the hardly degraded organic substances such as carbon dust, there is also inorganic substances such as LiFePO4s, discharge of wastewater is intermittence, variation water quality
Larger, biochemical is poor.Third class is generated in the life of sanitary sewage, predominantly corporation eatery and worker, and major pollutants are
COD, BOD, SS and ammonia nitrogen.Water quality is relatively stable, and biodegradability is good, can promote biochemical of lithium battery waste water.
Lithium battery production waste water quality fluctuation is larger in this three classes waste water, and biochemical is poor, is difficult to handle the most.It is this kind of useless
The main processing method of liquid has：Physico-chemical process：Such as electrolysis of chemical oxidative decomposition, medicament, activated carbon adsorption and reverse osmosis technology.It is raw
Change method：Such as activated sludge process, Anaerobic biotreatment method, biofilm technology.Each method cuts both ways, relatively more normal at present
The method seen is to be combined several method, is mutually learnt from other's strong points to offset one's weaknesses, and best efficiency is played.Such as use Fenton oxidation method, coagulation heavy
It forms sediment, activated carbon adsorption filtering combination, this method should produce waste water only for lithium battery, and technique is relatively simple, and effect is good, but handles
It is of high cost, about 100 yuan of waste water medicament expense per ton；Using neutralization precipitation, coagulating sedimentation, IC anaerobic towers, hydrolysis acidification, A/O lifes
Object denitrification process, contact oxidation method combination, this method take physical chemistry with the biochemical mode being combined, and high treating effect is
System water outlet is relatively stable, but complex treatment process, waste water operating cost per ton are about 20 yuan.Therefore easy to operate, treatment effect
It is the research direction of lithium battery production waste water that good, operating cost is low.
In addition, for three classes waste water caused by lithium battery factory, current processing mode often uses independent system
System is handled.Per a set of processing system of class waste water, does not combine organically, cause the waste of equipment, the raising of cost.Especially
It is acid-base waste water treatment system, a set of independent processing system is often used as in current conventional design.Conventional processing system
Neutralization reaction occurs for acidic and alkaline waste water mixing in system, then is adjusted to neutrality and is discharged depending on soda acid situation addition acid solution or lye.
The processing has the disadvantage that：Also include inorganic or organic pollution centainly although such waste water is mainly pH pollutions,
It is not processed that discharge easy tos produce pollution and the system needs acid-base modifier to be adjusted, and in other waste water treatment process
In be often also required to be adjusted using acid-base modifier in the incipient stage.Therefore the work for producing the input of repetition and repeating
Skill increases cost.
Therefore it is low and Lithium Battery Industry can be removed simultaneously and produced that a kind of simple for process, high treating effect, operating cost are provided
The Lithium Battery Industry waste water purification system of raw three classes waste water is problem to be solved by this invention.
Invention content
The present invention overcomes the deficiencies in the prior art, provide that a kind of simple for process, high treating effect, operating cost is low and energy
The Lithium Battery Industry waste water purification system of three classes waste water caused by Lithium Battery Industry is removed simultaneously.
In order to achieve the above objectives, the technical solution adopted by the present invention is：Provide a kind of Lithium Battery Industry purification of waste water system
System, it is characterised in that：Including acid-base neutralization unit, coagulation-flocculation precipitation unit and oxygen membrane biological reaction unit and lithium battery
Produce wastewater storage tank, alkaline waste water storage tank, acid waste water storage tank, sanitary wastewater storage tank；
The acid-base neutralization unit includes neutralization reaction slot, the first Rinsing Area；The alkaline waste water storage tank, acid waste water storage tank point
It is not connected with the corresponding inlet of neutralization reaction slot by pipeline；First Rinsing Area is gone out by pipeline and neutralization reaction slot
Liquid mouth is connected；
The coagulation-flocculation precipitation unit includes the first reactive tank, the second reactive tank, third reactive tank, sedimentation basin, medial launder；Institute
The first reactive tank, the second reactive tank, third reactive tank, sedimentation basin, medial launder is stated to be sequentially connected by pipeline；First reaction
Slot produces wastewater storage tank with lithium battery by pipeline and is connected, and medial launder is connected by pipeline with sanitary wastewater storage tank；It is described
First reactive tank is connected by pipeline and the first chemicals dosing plant；Second reactive tank passes through pipeline and the second chemicals dosing plant phase
Connection；The third reactive tank is connected by pipeline with third chemicals dosing plant；The sedimentation basin also passes through pipeline and sludge pressure
Filter device is connected；
Described and oxygen membrane biological reaction unit includes facultative aerobic membrane bioreactor, the second clean water tank；Described and oxygen membrane biological reaction
Device, the second clean water tank are connected by pipeline；Second clean water tank connects the second water purification discharge pipe；
The first Rinsing Area in the acid-base neutralization unit passes through pipeline and the first reactive tank phase in coagulation-flocculation precipitation unit
Connection；Medial launder in the coagulation-flocculation precipitation unit passes through pipeline and the simultaneous oxygen film biology in simultaneous oxygen membrane biological reaction unit
Reactor is connected.
As a preferred embodiment, heater is respectively set in the second reactive tank, third reactive tank.
As a kind of more preferable scheme, first reactive tank, the second reactive tank, third reactive tank are respectively acid-base reaction
Slot, polymeric aluminium reaction slot, polyacrylamide reactive tank.
As a kind of more preferable scheme, the first reactive tank, the second reactive tank, third reactive tank be respectively set agitating device with
And pH detection devices.
As a kind of more preferable scheme, the third reactive tank is also connected by pipeline and the 4th chemicals dosing plant.
As a preferred embodiment, it is arranged on the pipeline between the lithium battery production wastewater storage tank and the first reactive tank
There is the first liquid pump；It is provided with the second liquid pump on pipeline between the sanitary wastewater storage tank and medial launder；Described and oxygen film biology
Third liquid pump is provided on pipeline between reactor and the second clean water tank；First Rinsing Area by with the first reactive tank it
Between pipeline on be provided with the 4th liquid pump；The 5th liquid is provided on pipeline between the medial launder and facultative aerobic membrane bioreactor
Pump.
As a kind of more preferable scheme, the neutralization reaction slot is provided with agitating device and pH detection devices；In described
Between slot be provided with agitating device and pH detection devices.
As a kind of more preferable scheme, first Rinsing Area is also connected with the first water purification discharge pipe, the first water purification discharge pipe
53 are provided with sewage detection device；Second clean water tank is provided with sewage detection device.
As a kind of more preferable scheme, sedimentation basin is inclined-plate clarifying basin.
As a kind of more preferable scheme, it is dense that the pipeline between the sedimentation basin and sludge press filtration device is disposed with sludge
Contracting slot, sludge pump.
This system is using acid-base neutralization, coagulation-flocculation precipitation, facultative aerobic membrane bioreactor technology（XM-MBR）Joint technology.
Including acid-base neutralization unit, coagulation-flocculation precipitation unit and oxygen membrane biological reaction unit.
Wherein coagulation-flocculation precipitation unit includes third-order reaction slot and sedimentation basin.Coagulation-flocculation process be industrial water and
Most basic and particularly important processing procedure makes to be difficult in water by adding some medicaments into water in sanitary sewage disposal
The particle of precipitation can be aggregated with one another and form colloid, then be combined to form the condensate of bigger with the impurity in water body.Condensate
With powerful adsorption capacity, suspended matter can not only be adsorbed, moreover it is possible to absorbed portion bacterium and dissolved matter.Condensate by absorption,
Volume increases and sinks.Coagulation-flocculation depositing technology is with effluent quality is good, process runs well is reliable, economical and practical, operation
The advantages that easy.This method is very suitable for pre-processing lithium battery production waste water, improves facultative aerobic membrane bioreactor skill
Art unit produces lithium battery the treatment effect of waste water.
Facultative aerobic membrane bioreactor technology（XM-MBR）Key be by establishing and oxygen environment, utilizing microbe symbiotic former
Reason, cultivates the composite flora that a variety of bacterium colonies such as anaerobic bacteria, facultative aerobe and aerobic bacteria coexist, and is formed using film retention enrichment highly concentrated
The microorganism species of degree, and the pollutants such as carbon (C), nitrogen (N), phosphorus (P) just become " food " of composite flora in sewage, utilize
Composite flora is metabolized pollutant removal, while food chain is formed between compound flora, and organic-biological residuum can be whole in system
It is decomposed by other bio-digestions in food chain, realizes not outer row's organic sludge in sewage disposal process.There is this method processing to imitate
Fruit is good（Water outlet can reach reuse level）, sludge yield it is small, can synchronous denitrification dephosphorizing, operation energy consumption is relatively low, operating cost is low
The advantages that.Simultaneously compared to currently a popular aerobic membrane bioreactor technology（MBR）This method reduce sludge yield coefficient,
Reduce disposal costs.It is applicable not only to processing lithium battery production waste water, and suitable for the processing of sanitary wastewater.The unit is
A highly important unit in this system.
Acid-base neutralization unit in this system, acid waste water and alkaline waste water are only simply neutralized, do not added
Add additional medicament.The waste water neutralized is passed through the stirring of coagulation-flocculation precipitation unit together with lithium battery production waste water later,
Acid-base accommodation first is carried out with lithium battery production waste water using the also remaining acid-base property of the waste water neutralized, then is optionally added into soda acid
Conditioning agent.Equipment and the input of medicament are saved in this way, the process for decreasing production.This unit is also provided with water purification row simultaneously
Go out pipeline, if being in neutrality and having reached discharge standard by detecting simple neutralize of acidic and alkaline wastewater progress, does not need
The direct emission by following two treatment unit for waste water increases the flexibility of system processing waste water.
It is provided with third-order reaction slot in coagulation-flocculation precipitation unit this system simultaneously, using coagulant polymeric aluminium chloride
（PAC）, flocculant polyacrylamide（PAM）Two analog assistants are combined to handle waste water.Due to PAC can neutralize charge/
Elimination of colloid stability forms tiny flco, and PAM enhances the adsorption bridging effect to elaioleucite in water as organic high molecular polymer,
PAM to water-borne glue grain have sweep across, package action.Thus compared to other auxiliary agents, inorganic PAC and organic PAM combinations
Better coagulation-flocculation effect can be reached.The addition sequence of PAC and PAM is also worthy of careful study simultaneously, and PAC and PAM is used in combination just
It is to allow PAC first to complete neutralization charge/elimination of colloid stability to be formed after tiny flco, further increases flco volume and be conducive to fully sink
It forms sediment.Therefore in order to ensure the effect of coagulation-flocculation, PAC should be first added, add PAM.Therefore this system is reacted by the way that PAC is first arranged
Slot, rear setting PAM reactive tanks design to improve the effect of coagulation-flocculation.Simultaneously PAC pH value be 7.5-8 when coagulation effect most
Good, PAM effects when pH value is 6.5-7 are relatively good, and this system carries out reaction by the way that pH detection devices are arranged stringent
Monitoring, and be arranged and fill the first chemicals dosing plant of acid-base modifier, the 4th chemicals dosing plant carrys out the acid-base value of regulation system, to carry
The effect of high coagulation-flocculation.In addition heating is conducive to improve intermolecular movement, promotes coagulation or flocculated progress, therefore this
System installs heater additional in PAC reactive tanks and PAM reactive tanks, and the effect of coagulation-flocculation is improved with this.In addition in sedimentation basin and
The sludge concentration tank being arranged between sludge press filtration device can improve the efficiency of press filtration.
In addition system components are provision for sealing, waste liquid from into system be discharged to the end under closed environment into
Row, it is therefore prevented that pollution of the leakage of waste liquid to environment.
The advantageous effects of the present invention essentially consist in：There is provided a kind of simple for process, high treating effect, operating cost it is low and
The Lithium Battery Industry waste water purification system of three classes waste water caused by Lithium Battery Industry can be removed simultaneously.
（1）This system is using mould associated with acid-base neutralization unit, coagulation-flocculation precipitation unit and oxygen membrane biological reaction unit
Formula, especially and the use of oxygen membrane biological reaction unit, the biodegradability of raising lithium battery waste water reduce lithium battery waste water and locate in advance
The cost of reason；Integrated artistic is simple, and investment is relatively low, and waste water operating cost is low；Processing system anti-shock loading is strong simultaneously, and system is steady
Qualitative height.
（2）Compared to conventional design, this system is rationally distributed, realizes having for three kinds of wastewater treatments of lithium battery manufacturing enterprise
Machine combines, and can handle three classes waste water simultaneously, simplifies technique, the equipment of reduction, the overlapping investment of medicament, save operation at
This.
（3）Compared to conventional design, the acid-base neutralization unit in this system only carries out acid waste water and alkaline waste water
It is simple to neutralize, do not add additional medicament.Coagulation-flocculation precipitation unit is passed through together with lithium battery production waste water later to stir
It mixes, first carries out acid-base accommodation with lithium battery production waste water using the also remaining acid-base property of the waste water neutralized, then be optionally added into
Acid-base modifier.Equipment and the input of medicament are saved in this way, the process for decreasing production.
（4）For this system by the way that PAC reactive tanks are first arranged, the rear design that PAM reactive tanks are arranged improves the effect of coagulation-flocculation,
To improve the effect of purification of waste water.Be different from conventional design simultaneously, this system focus on reactive tank setting pH detection devices,
Heater and the chemicals dosing plant for containing acid-base modifier, acid-base value and temperature to coagulation-flocculation process are effectively controlled
System, for coagulation-flocculation process carry out provide good environmental condition, help to improve the clean-up effect of final waste water.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the preferred embodiment of the present invention.
In figure：1 it is lithium battery production wastewater storage tank, 101 be the first liquid pump, 2 be alkaline waste water storage tank, 3 is acid waste water
Storage tank, 4 be life wastewater storage tank, 401 be the second liquid pump, 51 be neutralization reaction slot, 511 be neutralization reaction slot agitating device, 512
For neutralization reaction slot pH detection devices, 513 be neutralization reaction slot alkalinity inlet, 514 be neutralization reaction slot acidity inlet,
515 it is neutralization reaction slot liquid outlet, 52 be the first Rinsing Area, 521 be the 4th liquid pump, 53 be the first water purification discharge pipe, 531 is
One water purification discharge pipe sewage detection device, 61 for the first reactive tank, 611 be the first chemicals dosing plant, 613 be the first reactive tank stirring
Device, 614 be the first reactive tank pH detection devices, 62 be the second reactive tank, 621 be the second chemicals dosing plant, 622 be the second reaction
Slot heater, 623 be the second reactive tank agitating device, 624 be the second reactive tank pH detection devices, 63 be third reactive tank, 631
It is third reactive tank heater for third chemicals dosing plant, 632,633 be third reactive tank agitating device, 634 is third reactive tank
PH detection devices, 635 be the 4th chemicals dosing plant, 64 be sedimentation basin, 65 be medial launder, 651 be medial launder agitating device, 652 be
Medial launder pH detection devices, 53 be the 5th liquid pump, 66 be sludge press filtration device, 67 be sludge concentration tank, 671 be sludge pump, 71
It is third liquid pump for facultative aerobic membrane bioreactor, 711,712 be film process layer, 72 be the second clean water tank, 721 is the second clean water tank
Sewage detection device, 73 are the second water purification discharge pipe device.
Specific implementation mode
Presently in connection with drawings and examples, the present invention is described in further detail, these attached drawings are simplified signal
Figure, the basic structure of the invention will be illustrated schematically only, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of Lithium Battery Industry waste water purification system, including acid-base neutralization unit, coagulation-flocculation precipitation are single
Member and oxygen membrane biological reaction unit and lithium battery production wastewater storage tank 1, alkaline waste water storage tank 2, acid waste water storage tank 3, life
Wastewater storage tank 4.
Wherein acid-base neutralization unit includes neutralization reaction slot 51, the first Rinsing Area 52；Alkaline waste water storage tank 2, acid waste water
Storage tank 3 is connected by pipeline with the alkaline inlet 513 of neutralization reaction slot 51, acid inlet 514 respectively；Neutralization reaction slot 51
It is provided with agitating device 511 and pH detection devices 512, the progress of reaction can be accelerated and monitors the process of reaction.First is clear
Sink 52 is connected by pipeline with 51 liquid outlet 515 of neutralization reaction slot；First Rinsing Area 52 is also connected with the first water purification discharge pipe
53, the first water purification discharge pipe 53 is provided with sewage detection device 531 and is detected to waste water, can be without follow-up if reaching standard
Step is discharged from the first water purification discharge pipe 53, keeps system operation more flexible.
Coagulation-flocculation precipitation unit include the first reactive tank 61, the second reactive tank 62, third reactive tank 63, sedimentation basin 64,
Medial launder 65；Five are sequentially connected by pipeline.
First reactive tank 61 produces wastewater storage tank 1 with lithium battery by pipeline and is connected, and is arranged on pipeline between the two
There is the first liquid pump 101, to improve purification of waste water efficiency；Medial launder 65 is connected by pipeline with sanitary wastewater storage tank 4, the two it
Between pipeline on be provided with the second liquid pump 401, for the purposes of improve purification efficiency.
First reactive tank 61 is acid-base reaction slot, passes through pipeline and the first chemicals dosing plant for being loaded with acid-base modifier
611 are connected；The first reactive tank 61 is additionally provided with agitating device 613 and pH detection devices 614 simultaneously.First reactive tank 61
Effect is the pH value adjusted into system waste water, not only to eliminating the pollution of acid-base property in sewage, and is two steps below
Reaction provides a good acid or alkali environment；Agitating device 613, which is arranged, can accelerate the progress of reaction, setting pH detection devices 614
The process of reaction can preferably be monitored.
Second reactive tank 62 is aluminium polychloride（PAC）Reactive tank by pipeline and is loaded with coagulant polymeric chlorination
Second chemicals dosing plant 621 of aluminium is connected；Similar with the first reactive tank 61 simultaneously, the second reactive tank 62 is additionally provided with stirring dress
Set 623 and pH detection devices 624.The effect of second reactive tank 62 is to carry out coagulating treatment to waste water.In the second reactive tank 62
It is additionally provided with heater 622.System temperature increases, and is conducive to molecular motion and becomes active, to improve the effect of coagulation.
Third reactive tank 63 is polyacrylamide（PAM）Reactive tank by pipeline and is loaded with flocculant polyacrylamide
The third chemicals dosing plant 631 of amine is connected；Similar with the first reactive tank 61 simultaneously, third reactive tank 63 is additionally provided with stirring dress
Set 633 and pH detection devices 634.The effect of third reactive tank 63 is to carry out flocculation treatment to waste water.In third reactive tank 63
It is additionally provided with heater 632.Heating makes molecular motion become active, to improve flocculated effect.In addition to giving flocculant
Polyacrylamide provides better acid or alkali environment, and third reactive tank 63 also connects the 4th chemicals dosing plant 635 by pipeline.The device
Acid solution is contained, the environment of an acid on the weak side, the effect of better performance flocculant can be provided for flocculant polyacrylamide.
Sedimentation basin 64 is inclined-plate clarifying basin.Compared to common sedimentation basin, inclined-plate clarifying basin is asked when shortening precipitation, is improved
Ability is buried at treatment effeciency, the place for substantially increasing sedimentation basin.Other than being connected with third reactive tank 63 and medial launder 65, sink
Shallow lake pond 64 is also connected by pipeline with sludge press filtration device 66, by sludge from system be discharged and be pressed into mud cake do it is further from
Reason.Sludge press filtration device 66 can use plate and frame filter press or other this field conventional equipments.In sedimentation basin 64 and sludge pressure
Pipeline setting between filter device 66 is disposed with sludge concentration tank 67 and sludge pump 671.Sludge concentration tank 67 can improve
The efficiency of press filtration, and dredge pump 671 can improve the efficiency of sludge conveying.It in addition, can be with if the waste water that generates of press filtration is more
Pass through pipeline（It is not shown）Waste water is transported to medial launder 65, reduces the discharge of waste water.
Medial launder 65 is provided with agitating device 651, can make to enter and the waste water quality of oxygen membrane biological reaction unit is uniform,
Be conducive to processing of the facultative aerobic membrane bioreactor 71 to waste water, improve the effect of wastewater treatment.Medial launder 65 also sets up pH detections
Device 652 is monitored the acid-base value situation of the waste water of its inside, because facultative aerobic membrane bioreactor 71 needs pH value in
Property neighbouring competence exertion more preferable effect.
And oxygen membrane biological reaction unit includes facultative aerobic membrane bioreactor 71, the second clean water tank 72, the two passes through pipeline phase
Connection, and third liquid pump 711 is set on pipeline, to improve waste water transfer efficiency.Facultative aerobic membrane bioreactor is internally provided with
If dry film process layer 712, film process layer 712 is the device core component, passes through aerating system（It is not shown）Cooperation, make at film
Manage microbiologic population of 712 enriched of layer based on facultative aerobe.Utilize the pollutant in microbiological treatment waste water.Second water purification
Sewage detection device 721, the second water purification discharge pipe 73 of outlet connection is arranged in slot 72.Sewage detection device 721 is to purified
Water quality is detected, and is discharged by sewage detection device 721 after qualified.
In addition the first Rinsing Area 52 in acid-base neutralization unit is anti-by first in pipeline and coagulation-flocculation precipitation unit
It answers slot 61 to be connected, and the 4th liquid pump 521 is set on pipeline；Medial launder 65 in coagulation-flocculation precipitation unit by pipeline with
And the facultative aerobic membrane bioreactor 71 in oxygen membrane biological reaction unit is connected, and the 5th liquid pump 653 is set on pipeline.
With reference to embodiment, the operation principle of this system is introduced：
The waste water that lithium battery manufacturing enterprise generates（Lithium battery produces waste water, acidic and alkaline wastewater, sanitary wastewater）Classify storage
It is produced in wastewater storage tank 1, alkaline waste water storage tank 2, acid waste water storage tank 3, sanitary wastewater storage tank 4 in lithium battery.
Acidic and alkaline wastewater gravity flow enters neutralization reaction slot 51, neutralized reaction（It is not required to additionally add acid-base accommodation reagent）
After 0.5h, water body gravity flow enter the first Rinsing Area 52, by the first water purification discharge pipe sewage detection device 531 detect it is up to standard after by
For the first water purification discharge pipe discharge 53.
First reactive tank 61 is entered under the action of the 4th liquid pump 521 by pipeline if detection is unqualified.Lithium electricity simultaneously
Pond produces waste water and also enters the first reactive tank 61, and the two stirring is sufficiently mixed.Detect pH value, the first chemicals dosing plant 611 to first
Reactive tank 61 is passed through acid-base modifier, and control pH value of waste water is in 7.5-8.Into the second reactive tank 62, is heating and stirring strongly
In the state of PAC be added carry out coagulating treatment 0.5h, while pH value is monitored, since the reaction time of PAC is shorter, so strong
Stirring is to ensure fully to react.Enter third reactive tank 63 later, PAM is added in the state of heating and stirring and carries out at flocculation
Manage 1.5h.Mixing speed first quick and back slow, is first to be uniformly mixed soon, is in order to avoid destroying flco slowly afterwards.Monitor pH simultaneously
Acid-base modifier is added by the 4th chemicals dosing plant 635 in value, and control system pH value is in 6.5-7.
It is separated by solid-liquid separation later into inclined-plate clarifying basin 64, the gravity flow of 64 supernatant of sedimentation basin enters medial launder 65.Precipitation
Bottom of pond stream flows into sludge concentration tank 67, enters sludge press filtration device 66 later and carries out press filtration.After press filtration at bed mud cake outward transport landfill
It sets；66 press filtration water of sludge press filtration device flows into medial launder 65.
Sanitary wastewater, which flows into after medial launder 65 is sufficiently mixed with the supernatant flowed by sedimentation basin 64, enters simultaneous oxygen film biology
Reactor 71.Facultative aerobic membrane bioreactor 71 is by establishing and oxygen environment, using microbe symbiotic principle, cultivate anaerobic bacteria,
The composite flora that a variety of bacterium colonies such as facultative aerobe and aerobic bacteria coexist is enriched in film process layer 712 using film crown_interception and forms height
The microorganism species of concentration, and the pollutants such as carbon (C), nitrogen (N), phosphorus (P) just become " food " of composite flora in sewage, profit
It is metabolized pollutant removal with composite flora, while forming food chain between compound flora, organic-biological residuum can be complete in system
Portion is decomposed by other bio-digestions in food chain, realizes not outer row's organic sludge in sewage disposal process.It is finally second 72
Discharge system after clean water tank detection is qualified.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (10)
1. a kind of Lithium Battery Industry waste water purification system, it is characterised in that：It is single including acid-base neutralization unit, coagulation-flocculation precipitation
Member and oxygen membrane biological reaction unit and lithium battery production wastewater storage tank, acid waste water storage tank, live and give up at alkaline waste water storage tank
Water storage tank；
The acid-base neutralization unit includes neutralization reaction slot, the first Rinsing Area；The alkaline waste water storage tank, acid waste water storage tank point
It is not connected by pipeline inlet corresponding with neutralization reaction slot；First Rinsing Area goes out liquid by pipeline and neutralization reaction slot
Mouth is connected；
The coagulation-flocculation precipitation unit includes the first reactive tank, the second reactive tank, third reactive tank, sedimentation basin, medial launder；Institute
The first reactive tank, the second reactive tank, third reactive tank, sedimentation basin, medial launder is stated to be sequentially connected by pipeline；First reaction
Slot produces wastewater storage tank with lithium battery by pipeline and is connected, and medial launder is connected by pipeline with sanitary wastewater storage tank；It is described
First reactive tank is connected by pipeline and the first chemicals dosing plant；Second reactive tank passes through pipeline and the second chemicals dosing plant phase
Connection；The third reactive tank is connected by pipeline with third chemicals dosing plant；The sedimentation basin also passes through pipeline and sludge pressure
Filter device is connected；
Described and oxygen membrane biological reaction unit includes facultative aerobic membrane bioreactor, the second clean water tank；Described and oxygen membrane biological reaction
Device, the second clean water tank are connected by pipeline；Second clean water tank connects the second water purification discharge pipe；
The first Rinsing Area in the acid-base neutralization unit passes through pipeline and the first reactive tank phase in coagulation-flocculation precipitation unit
Connection；Medial launder in the coagulation-flocculation precipitation unit passes through pipeline and the simultaneous oxygen film biology in simultaneous oxygen membrane biological reaction unit
Reactor is connected.
2. Lithium Battery Industry waste water purification system according to claim 1, it is characterised in that：Second reactive tank, third are anti-
Answer slot that heater is respectively set.
3. Lithium Battery Industry waste water purification system according to claim 2, it is characterised in that：First reactive tank,
Two reactive tanks, third reactive tank are respectively acid-base reaction slot, polymeric aluminium reaction slot, polyacrylamide reactive tank.
4. Lithium Battery Industry waste water purification system according to claim 3, it is characterised in that：First reactive tank, second are instead
Answer slot, third reactive tank that agitating device and pH detection devices is respectively set.
5. Lithium Battery Industry waste water purification system according to claim 4, it is characterised in that：The third reactive tank is also logical
Piping and the 4th chemicals dosing plant are connected.
6. according to any Lithium Battery Industry waste water purification systems of claim 1-5, it is characterised in that：The lithium battery
It is provided with the first liquid pump on pipeline between production wastewater storage tank and the first reactive tank；The sanitary wastewater storage tank and medial launder it
Between pipeline on be provided with the second liquid pump；Is provided on pipeline between the facultative aerobic membrane bioreactor and the second clean water tank
Three liquid pumps；First Rinsing Area on the pipeline between the first reactive tank by being provided with the 4th liquid pump；The medial launder with
The 5th liquid pump is provided on pipeline between facultative aerobic membrane bioreactor.
7. Lithium Battery Industry waste water purification system according to claim 6, it is characterised in that：The neutralization reaction slot setting
There are agitating device and pH detection devices；The medial launder is provided with agitating device and pH detection devices.
8. Lithium Battery Industry waste water purification system according to claim 7, it is characterised in that：First Rinsing Area also connects
The first water purification discharge pipe is connect, the first water purification discharge pipe is provided with sewage detection device；Second clean water tank is provided with sewage inspection
Survey device.
9. Lithium Battery Industry waste water purification system according to claim 6, it is characterised in that：Sedimentation basin is sloping plate deposition
Pond.
10. Lithium Battery Industry waste water purification system according to claim 9, it is characterised in that：The sedimentation basin and sludge
Pipeline between filter-pressing device is disposed with sludge concentration tank, sludge pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769844.0A CN108675568A (en) | 2018-07-13 | 2018-07-13 | A kind of Lithium Battery Industry waste water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769844.0A CN108675568A (en) | 2018-07-13 | 2018-07-13 | A kind of Lithium Battery Industry waste water purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108675568A true CN108675568A (en) | 2018-10-19 |
Family
ID=63813906
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810769844.0A Withdrawn CN108675568A (en) | 2018-07-13 | 2018-07-13 | A kind of Lithium Battery Industry waste water purification system |
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| Country | Link |
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| CN (1) | CN108675568A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590034A (en) * | 2019-03-12 | 2019-12-20 | 湖北朗润环保科技有限公司 | Process treatment method for lithium iron wastewater of lithium battery anode material |
| CN113735317A (en) * | 2021-09-09 | 2021-12-03 | 镇江新纳环保材料有限公司 | Special efficient wastewater treatment system for extracting N-methyl pyrrolidone |
| CN114149128A (en) * | 2021-12-03 | 2022-03-08 | 刘玉双 | Industrial wastewater treatment method |
| CN114149128B (en) * | 2021-12-03 | 2024-06-07 | 湖北智云瑞企企业管理有限公司 | Industrial wastewater treatment method |
-
2018
- 2018-07-13 CN CN201810769844.0A patent/CN108675568A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590034A (en) * | 2019-03-12 | 2019-12-20 | 湖北朗润环保科技有限公司 | Process treatment method for lithium iron wastewater of lithium battery anode material |
| CN113735317A (en) * | 2021-09-09 | 2021-12-03 | 镇江新纳环保材料有限公司 | Special efficient wastewater treatment system for extracting N-methyl pyrrolidone |
| CN113735317B (en) * | 2021-09-09 | 2023-03-28 | 镇江新纳环保材料有限公司 | Special efficient wastewater treatment system for extracting N-methyl pyrrolidone |
| CN114149128A (en) * | 2021-12-03 | 2022-03-08 | 刘玉双 | Industrial wastewater treatment method |
| CN114149128B (en) * | 2021-12-03 | 2024-06-07 | 湖北智云瑞企企业管理有限公司 | Industrial wastewater treatment method |
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Application publication date: 20181019 |