CN109467261A - Waste lithium cell electrolyte wastewater treatment method - Google Patents
Waste lithium cell electrolyte wastewater treatment method Download PDFInfo
- Publication number
- CN109467261A CN109467261A CN201811147476.2A CN201811147476A CN109467261A CN 109467261 A CN109467261 A CN 109467261A CN 201811147476 A CN201811147476 A CN 201811147476A CN 109467261 A CN109467261 A CN 109467261A
- Authority
- CN
- China
- Prior art keywords
- waste
- lithium cell
- water
- cell electrolyte
- waste lithium
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/347—Use of yeasts or fungi
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A kind of waste lithium cell electrolyte wastewater treatment method, after waste lithium cell battery core is carried out cutting operation, it places into water and is impregnated, so that electrolyte is soluble in water to obtain waste lithium cell electrolyte waste water, then adsorptivity powder and aluminium salt are added into waste lithium cell electrolyte waste water, mixed slurry is obtained after mixing, alkaline conditioner is added into mixed slurry again the pH value of mixed slurry is adjusted, waste liquid and filter residue are obtained after being filtered, after carrying out heating and fragmentation procedure to filter residue, immersion desorption manipulation is carried out using water again, obtain lithium-containing solution, it can be recycled, and waste liquid is obtained to waste water after biodegrade is handled, waste water is also finally passed through into reverse osmosis unit, obtain the purified water for meeting national emission standard requirement.Waste lithium cell electrolyte wastewater treatment method provided by the invention is more safe and environment-friendly, additionally it is possible to the valuable metal element sufficiently in recycling waste and old lithium ionic cell electrolyte waste water.
Description
Technical field
The present invention relates to waste lithium cell process fields, more particularly to a kind of waste lithium cell electrolyte wastewater treatment side
Method.
Background technique
Nowadays, most of electronic equipments such as smart phone, tablet computer, wearable device, electric car all uses
It is the lithium ion battery of recyclable charging.But these lithium ion batteries arrive triennium using two, and function and efficiency will move back
Change or even end-of-life.Once the electrolyte of waste and old lithium ion battery is flowed into soil or sudden and violent leakage in the environment, have greatly
Pollution can also generate a part of waste and old electrolyte waste water in addition, during producing lithium battery, these electrolyte are useless
It is discharged into environment if water is unprocessed, equally will cause great pollution, therefore, how be electrolysed these waste lithium cells
Liquid is waste and old safely and effectively to be handled, and is had very important significance, wherein can not only sufficiently recycle valuable metal
Element, additionally it is possible to after avoiding electrolyte waste water from flowing into environment, surface water quality be impacted, such as cause water eutrophication
Deng.
To give some instances the drawbacks of carrying out the binding analysis prior art as follows:
Currently, published waste and old lithium ionic cell electrolyte recovery method has:
1. Chinese invention patent: the recovery method<201310290286.7>of waste and old lithium ionic cell electrolyte, in inertia
After opening the shell of column lithium ion battery under gas shield, by ultracentrifugation method by electrolyte from lithium ion battery
In be separated and recovered from.In this method, the recovery rate of electrolyte is lower.
2. Chinese invention patent: a kind of recovery method of lithium-ion battery electrolytes<201610778051.6>, it will be waste and old
Electric discharge after lithium ion battery is clean, and acanthopore of the depth less than thickness of shell is pierced out on the shell of battery；True
Under empty condition, acanthopore on battery is punctured using needle and forms discharge orifice, and quickly send it to the upper of electrolyte collecting pit
Square, the electrolyte in battery is directly entered in electrolyte collecting pit from discharge orifice outflow；Using pneumatic compression device from battery
The intermittent extruding battery in top, flows completely out electrolyte in battery；Electrolyte in electrolyte collecting pit is added to nitrogen to protect
In the reaction kettle of shield, the barium monoxide ethanol solution that concentration is 30~50% is added, recycling lithium fluoride is recycled.The party
Method is complicated for operation, and equipment requirement is high, and reagent consumption is big, higher cost.
3. Chinese invention patent: a kind of lithium-ion battery electrolytes recovery method<201510896646.7>, by lithium ion
Broken be placed in organic solvent of the battery core of battery is impregnated, and is obtained the extracting solution vacuum rotary steam of electrolyte, is obtained concentrate；It will be dense
Contracting solution crystallisation by cooling obtains lithium salts and recrystallizes solid；Vacuum drying recrystallization solid, obtains recycling lithium salts；Analyze lithium salts at
Point, electrolyte is added and organic solvent is adjusted to electrolyte composition used in lithium ion battery and matched, electrolysis liquid product is made.It should
It is stringent that method requires very high, process conditions to require the corrosion resistance of equipment.
4. Chinese invention patent: electrolyte recycling device and recovery method<201610833311.5>disclose one kind
The cabinet and its application method of special recycling electrolyte.The cabinet will be fixed on by the battery for disassembling and exposing both ends pole piece
In, mouth alignment and fixation then are blown afloat in the end for fixing to clamp the battery on mold with high pressure, and electrolyte is blown from inside battery
Out.The cabinet design is relative complex.
5. Chinese invention patent: a kind of waste and old lithium ionic cell electrolyte recovery and treatment method<201410069599.4>
In, the electrolyte being collected into is distilled out into HF and PF5 gas at 95~120 DEG C, and NaF and Na are obtained by Alkali absorption3PO4's
Mixed solution；Remaining fraction containing LiF is by being added Ca (OH)2Solution replacement goes out lithium ion.This method by-product is difficult to separate
Purification, utility value are limited.
6. Chinese invention patent: the recovery method of electrolyte in a kind of waste and old power lithium-ion battery <
201710705502.8 > in, by the dichloroethanes leachate of electrolyte in 35~50 DEG C of air-distillations, leaching agent is steamed, it is remaining
Substance is electrolyte.The electrolyte purity that this method obtains cannot ensure.
From the analysis above, we can see that the processing method of existing waste and old lithium ionic cell electrolyte waste water and be not thorough, i.e., it is valuable
The waste water that metallic element finally generates after extracting can not meet discharge standard required by national standard, still have there are also more
Valence metallic element residual, it also means that the processing method of existing waste and old lithium ionic cell electrolyte waste water is to valuable gold
The rate of recovery for belonging to element is lower.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, provide it is a kind of it is safe and environment-friendly, can also sufficiently return
Receive the waste lithium cell electrolyte wastewater treatment method of valuable metal element in waste and old lithium ionic cell electrolyte waste water.
The purpose of the present invention is achieved through the following technical solutions:
A kind of waste lithium cell electrolyte wastewater treatment method, comprising the following steps:
It after waste lithium cell battery core is carried out cutting operation, places into water and is impregnated, obtain waste lithium cell electrolysis
Liquid waste water；
Adsorptivity powder and aluminium salt are added into the waste lithium cell electrolyte waste water, after carrying out hybrid manipulation, obtains
Mixed slurry；
Alkaline conditioner is added into the mixed slurry, for adjusting the pH value of the mixed slurry；
The mixed slurry is filtered operation, obtains waste liquid and filter residue；
After carrying out heating and fragmentation procedure to the filter residue, then water is used to carry out immersion desorption manipulation, obtains lithium-containing solution；
The waste liquid is subjected to biodegradable operation, obtains waste water；
By the waste water by reverse osmosis unit, it is purified water.
In one of the embodiments, described into the waste lithium cell electrolyte waste water be added adsorptivity powder and
Aluminium salt, in mixed operation, the hybrid manipulation is positive opposition stream flush operation.
Alkaline conditioner is being added into the mixed slurry in one of the embodiments, for adjusting the mixing
In the operation of the pH value of slurry, the pH value of the mixed slurry is adjusted to 7.0~8.5.
The adsorptivity powder is absorbent charcoal powder body, waste lithium cell cathode powder and gives up in one of the embodiments,
At least one of old carbon dust.
The aluminium salt is at least one of aluminium chloride, aluminum sulfate and aluminum nitrate in one of the embodiments,.
The mass ratio of the adsorptivity powder and the waste lithium cell electrolyte waste water is in one of the embodiments,
(0.01~0.1): 1.
Described in one of the embodiments, to carry out in heating and fragmentation procedure to the filter residue, heating temperature is 400 DEG C
~800 DEG C, heating time is 0.5~2h.
It is described in one of the embodiments, specifically comprise the following steps: in biodegradable operation by the waste liquid
The waste liquid is passed sequentially through into anaerobic pond, anoxic pond, aerobic tank and filtering ponds, wherein be also respectively provided with activated sludge.
In one of the embodiments, the dissolved oxygen amount of the anaerobic pond be 0mg/L~0.2mg/L, the anoxic pond it is molten
Oxygen amount is 0.4mg/L~0.5mg/L, and the dissolved oxygen amount of the aerobic tank is 2mg/L~4mg/L.
The activated sludge includes Blastocystis, Blastocystis, Pediococcus, lactic acid bacteria in one of the embodiments,
Category, biological enzyme and nutritional agents.
Above-mentioned waste lithium cell electrolyte wastewater treatment method, after waste lithium cell battery core is carried out cutting operation,
It places into water and is impregnated, so that electrolyte is soluble in water to obtain waste lithium cell electrolyte waste water, then to useless old lithium
Adsorptivity powder and aluminium salt are added in the electrolyte waste water of pond, mixed slurry is obtained after mixing, then alkalinity is added into mixed slurry
The pH value of mixed slurry is adjusted in regulator, obtains waste liquid and filter residue after being filtered, is heated and be crushed to filter residue
After operation, then water is used to carry out immersion desorption manipulation, obtains lithium-containing solution, can be recycled, and by waste liquid by biology drop
Solution obtains waste water after being handled, finally also by waste water by reverse osmosis unit, obtain meeting the net of national emission standard requirement
Change water.Waste lithium cell electrolyte wastewater treatment method provided by the invention is more safe and environment-friendly, additionally it is possible to sufficiently recycle waste and old
Valuable metal element in lithium-ion battery electrolytes waste water.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the step flow chart of the waste lithium cell electrolyte wastewater treatment method of one embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
It is above-mentioned to more fully understand in order to be preferably illustrated to above-mentioned waste lithium cell electrolyte wastewater treatment method
The design of waste lithium cell electrolyte wastewater treatment method.
Referring to Fig. 1, in an embodiment, a kind of waste lithium cell electrolyte wastewater treatment method, comprising the following steps:
S110, it after waste lithium cell battery core is carried out cutting operation, places into water and is impregnated, obtain waste lithium cell
Electrolyte waste water.
By the way that waste lithium cell battery core is carried out cutting operation, enable to the electrolyte in waste lithium cell battery core exposed
Out, it after the completion of cutting, places into water and is impregnated, waste lithium cell electrolyte waste water can be obtained.
It is appreciated that being cut in the case where electrification if waste lithium cell also contains electricity, it is easy because of waste and old lithium
Inside battery occurs short circuit and causes waste lithium cell highly exothermic or even the dangerous situations such as explosion occur, will be waste and old in order to improve
Lithium battery electric core carries out the safety of cutting operation, for example, also to waste and old before carrying out cutting operation to waste lithium cell battery core
Lithium battery carries out discharge operation, specifically includes following operation: S111, waste lithium cell is stirred with graphite powder mixes, it is quiet
30min is set, preliminary electric discharge operation is carried out；S112, the waste lithium cell after preliminary electric discharge is put into electric discharge pond；
Alkaline solution and organic acid salt buffer solution are added in the pond S113, Xiang Fang electricity, carries out deep discharge operation；S114, it is discharging
One circulating pump is installed in pond, and starts circulating pump and the alkaline solution and the organic acid salt buffer solution is constantly rushed
Brush the waste lithium cell；S115, when the electricity of the waste lithium cell reaches preset value, close circulating pump, complete depth
Electric discharge.It so, it is possible so that the more thorough electric discharge of waste lithium cell, so that subsequent cutting operation is safer, wherein described
Alkaline solution can be sodium hydroxide solution, potassium hydroxide solution or lithium hydroxide solution；And in order to avoid waste lithium cell is put
Electricity is excessively violent, also while joined organic acid with salt buffer solution, in this way, guaranteeing waste and old ternary lithium battery in alkaline solution
While middle progress abundant efficient discharge, and the dangerous situations such as bumping and overheat will not occur because of excessively fierce, for another example, institute
Stating organic acid salt buffer solution is sodium citrate buffer or sodium ascorbate buffer solution, so, it is possible to play buffering
Effect so that waste lithium cell is substantially discharged and safe electric discharge, and then improve by waste lithium cell battery core into
The safety of row cutting operation.
In order to enable the electrolyte in waste lithium cell battery core is substantially soluble in water, for example, by waste lithium cell battery core into
After row cutting, the waste lithium cell battery core after the cutting is washed away using water is circulated, so, it is possible institute
The electrolyte stated in waste lithium cell battery core is washed into water, especially because using for a long time and being adhered to the electrolysis on pole piece
Liquid can also dissolve in water under the washing away for circulating water, while waste lithium cell battery core is impregnated in washing away liquid, can
So that the electrolyte in waste lithium cell battery core is more fully soluble in water, waste lithium cell electrolyte waste water can be obtained,
For another example, the time waste lithium cell battery core after cutting operation impregnated into the water is 12h~48h, so that described useless
Old lithium pond electrolyte is more fully soluble in water；For another example, the waste lithium cell battery core after the completion of immersion is taken out, also by institute
State the waste lithium cell battery core after the completion of impregnating and be sent into material classification machine, with further recycle waste lithium cell other are recyclable
The material utilized.
Adsorptivity powder and aluminium salt are added in S120, Xiang Suoshu waste lithium cell electrolyte waste water, after carrying out hybrid manipulation,
Obtain mixed slurry.
It is appreciated that containing a large amount of organic solvent in waste and old electrolyte waste water, such as ethers, esters and carbonates have
Solvent etc., for example, propene carbonate (PC), ethylene carbonate (EC), butylene (BC), diethyl carbonate (DEC), carbon
Dimethyl phthalate (DMC), methyl ethyl carbonate (EMC), methyl propyl carbonate (MPC), tetrahydrofuran (THF), dimethoxymethane (DMM),
Gamma-butyrolacton (GBL), methyl formate (MF) and methyl acetate (MA) etc.；Also contain a large amount of electrolyte lithium salt, such as hexafluoro arsenic
Sour lithium, lithium hexafluoro phosphate, lithium perchlorate and LiBF4 etc. also contain a large amount of additive, for example, vinylene carbonate
(VC) and sour ethylene vinylene (VEC) etc., if not handling the waste water containing electrolyte, and it is directly discharged to environment
In, nitrogen, phosphorus and fluorine element in electrolyte waste water etc. will cause environment greatly to pollute, for example, will cause water eutrophication
Change, so that red tide occurs for lake and sea area, also drinking water anxiety etc. can be caused due to water pollution, to the living environment of the mankind
Great harm is caused with health.In this way, in order to handle the pollutant in the waste lithium cell electrolyte waste water,
So that discharge water meets discharge standard required by national standard, for example, absorption is added into the waste lithium cell electrolyte waste water
Property powder and aluminium salt, after carrying out hybrid manipulation, obtain mixed slurry, it will be understood that adsorptivity powder contains a large amount of hole knot
Structure can adsorb a large amount of organic pollutant, greatly reduce the pollutant load in waste lithium cell electrolyte waste water, such as
Lithium ion and other metal ions；And it can further be mentioned on the basis of adsorptivity powder in conjunction with the collective effect of aluminium salt
Height is to the absorption property of the pollutant in waste lithium cell electrolyte waste water, this is because aluminium salt also has after forming aluminium hydroxide
There is porous structure, selective absorption can be carried out to the lithium ion in waste lithium cell electrolyte waste water, meanwhile, passing through physics
On the basis of absorption, aluminium ion can also be combined with the phosphate radical in waste lithium cell electrolyte waste water and be precipitated, and reduce waste and old lithium
Total phosphorus content in battery electrolyte waste water；In addition, with anion complex reaction can also occur for aluminium ion, the complexing of fluorine aluminium is formed
Ion is capable of forming fluorine aluminium salt precipitating, in this way, greatly reducing in waste lithium cell electrolyte waste water under alkaline condition
Total fluorine content；In this way, by the way that physical absorption is removed having in waste lithium cell electrolyte waste water in combination with chemical reaction
The biodegradability of waste lithium cell electrolyte waste water is greatly improved in machine pollutant and metal ion.
In order to enable waste lithium cell electrolyte waste water and adsorptivity powder and aluminium salt are mixedly more uniform, wherein one
In a embodiment, adsorptivity powder and aluminium salt are added into the waste lithium cell electrolyte waste water described, is mixed
In operation, the hybrid manipulation, which is positive, opposes stream flush operation.In this way, washed away by positive and negative convection current, it can be by adsorptivity powder
It is adequately dispersed in aluminium salt in waste lithium cell electrolyte waste water, so that adsorptivity powder and aluminium salt are jointly to useless old lithium
The progress such as organic pollutant and metal ion in the electrolyte waste water of pond efficiently and are thoroughly adsorbed.
In order to improve the adsorptivity to fluorine, phosphorus and majority of organic pollutants in waste lithium cell electrolyte waste water,
The adsorptivity powder is in absorbent charcoal powder body, waste lithium cell cathode powder and waste and old carbon dust in one of the embodiments,
At least one.In order to further increase to fluorine, phosphorus and the majority of organic pollutants in waste lithium cell electrolyte waste water
Adsorption effect, for example, the adsorptivity powder be absorbent charcoal powder body, it will be understood that active carbon is that a kind of black is porous solid
Body carbonaceous, by coal by crushing, forming or carbonized with uniform coal grain, activate production, main component is carbon, and containing a small amount of
The elements such as oxygen, hydrogen, chlorine, the specific surface area of normal activated carbon have very strong absorption property between 500m2/g~1700m2/g,
It so, it is possible fluorine, phosphorus and the majority of organic pollutants in waste lithium cell electrolyte waste water carrying out efficient physics suction
It is attached, waste lithium cell electrolyte waste water is greatly purified, meanwhile, the absorption of active carbon is in addition to physical absorption, there are also chemisorption,
Because the composition of active carbon in addition to carbon, also contains a small amount of chemical bonding and oxygen and hydrogen functional group, such as carbonyl and carboxyl, this
A little functional groups can will contain minerals and focus on as ash content in active carbon, as long as the ingredient of ash content is technology for gold and alkaline-earth metal
Salt, such as carbonate and phosphate, in this way, absorbent charcoal powder body is added in the waste lithium cell electrolyte waste water can
Largely adsorb organic pollutant and metal ion therein；Further, the absorbent charcoal powder body is wooden column-shaped active carbon,
In, the specific surface area of the wooden column-shaped active carbon is 1500m2/g~2300m2/g, and for another example, the absorbent charcoal powder body is coal quality
Column-shaped active carbon, wherein the specific surface area of the coal quality column-shaped active carbon is 900m2/ g~1200m2/ g, so, it is possible will be waste and old
Organic pollutant and metal ion in lithium battery electrolytes waste water carry out effective physics and chemisorption, improve waste and old lithium
The degree of purification of battery electrolyte waste water；Certainly, the adsorptivity powder can also be waste lithium cell cathode powder and waste and old carbon
Waste and old data is rationally utilized in this way, carrying out processing waste lithium cell electrolyte waste water using the resource recycled in powder, real
The sustainable use of resource is showed.
In order to sufficiently recycle valuable metal element in waste and old lithium ionic cell electrolyte waste water, one embodiment wherein
In, the aluminium salt is at least one of aluminium chloride, aluminum sulfate and aluminum nitrate.It is appreciated that aluminium salt is to lithium ion with excellent
Selective absorption, the dry of otheralkali metal in waste and old lithium ionic cell electrolyte waste water and alkaline-earth metal can be excluded
It disturbs, in addition also there is good elution stability, in this way, aluminium salt is added in the waste lithium cell electrolyte waste water, it can
The lithium ion in waste lithium cell electrolyte waste water is subjected to selective absorption well, is convenient for subsequent further recycling,
Realize the sustainable use of waste and old data；For another example, the aluminium salt and the lithium ion in waste lithium cell electrolyte waste water rub
You than be (2~6): 1, so, it is possible to further increase, aluminium salt to the lithium ion in waste and old lithium ionic cell electrolyte waste water into
The effect of row selective absorption.
Wherein, the principle that aluminium salt carries out selective absorption to the lithium ion in waste lithium cell electrolyte waste water is as follows:
LiX+Al3++3OH-+nH2O==2Al (OH)3·LiX·nH2O (X=Cl or NO3Or 1/2SO4)。
In order to improve adsorptivity powder to the adsorption effect of the waste lithium cell electrolyte Organic Pollutants in Wastewater,
In one embodiment, the mass ratio of the adsorptivity powder and the waste lithium cell electrolyte waste water be (0.01~
0.1): 1, in this way, by certain solid-to-liquid ratio, it can be by a large amount of organic pollutants in the waste lithium cell electrolyte waste water
It is effectively absorbed, so that the waste lithium cell electrolyte waste water meets discharge standard required by national standard.
Alkaline conditioner is added in S130, Xiang Suoshu mixed slurry, for adjusting the pH value of the mixed slurry.To institute
It states after adsorptivity powder and aluminium salt is added in waste lithium cell electrolyte waste water, alkaline conditioner is additionally added, by the mixing slurry
The pH value of material is adjusted, and enables to adsorptivity powder and aluminium salt under conditions of suitable pH value, to the useless old lithium
Organic pollutant and metal ion in the electrolyte waste water of pond carry out more efficient absorption.Exist in one of the embodiments,
Alkaline conditioner is added into the mixed slurry, in the operation of the pH value for adjusting the mixed slurry, the mixing slurry
The pH value of material is adjusted to 7.0~8.5, so, it is possible so that the hydrogen-oxygen in the aluminium ion in aluminium salt and the mixed slurry is added
Radical ion reaction generates aluminum hydroxide precipitation, so as to select the lithium ion in the waste lithium cell electrolyte waste water
The absorption of selecting property, is convenient for subsequent further recycling, realizes the sustainable use of waste and old data.In order to improve to described waste and old
The adsorptivity of fluorine, phosphorus in lithium battery electrolytes waste water and majority of organic pollutants, and the selectivity of lithium ion is inhaled
Attached effect, for example, the alkaline conditioner is at least one of calcium oxide, calcium hydroxide, sodium hydroxide and potassium hydroxide, such as
This, can be adjusted to 7.0~8.5 for the pH value of the mixed slurry, be conducive to generate aluminum hydroxide precipitation, thus to lithium ion into
Row selective absorption, meanwhile, it is additionally favorable for aluminium ion and fluorine ion complexing generates fluorination aluminum precipitation, further reduced described waste and old
Fluorine content in lithium battery electrolytes waste water substantially increases the biodegradability of the waste lithium cell electrolyte waste water；For another example,
After into the mixed slurry, pH value is adjusted in addition alkaline conditioner, controlling the reaction temperature in the mixed slurry is 20
DEG C~50 DEG C, the reaction time is 0.5h~5h, be so, it is possible so that adsorptivity powder and aluminium salt collective effect, and then more fill
Point in the waste lithium cell electrolyte waste water organic pollutant and lithium ion carry out selective absorption.
S140, the mixed slurry is filtered operation, obtains waste liquid and filter residue.
By being filtered operation to the mixed slurry after abundant absorption and reaction, can obtain pollutant load compared with
Low waste liquid and the waste residue for having adsorbed a large amount of organic pollutants and lithium ion.
In order to improve the effect being filtered to the mixed slurry, for example, the filter operation specifically includes following step
It is rapid: S141, the mixed slurry to be at the uniform velocity injected into the hopper of vacuum filter, the vacuum filter has vacuum
Pump installs a device for air-blowing pressurization on the hopper；S142, starting vacuum pump, are filtered under diminished pressure, are filtered
Vacuum pump is closed after 15min~18min；Start hopper on pressurizing device, carry out pressure filtration, filtration time be 4~
8min；S143, pressurizing device is closed, starts vacuum pump, is filtered under diminished pressure, close vacuum pump after filtering 8min~10min；It opens
Pressurizing device on dynamic hopper, carries out pressure filtration, and filtration time is 8min~10min；S144, pressurizing device is closed, opened
Dynamic vacuum pump, is filtered under diminished pressure, and closes vacuum pump after filtering 4min~8min；Start the pressurizing device on hopper, carries out
Pressure filtration, filtration time are 15min~18min；S145, pressurizing device is closed, completes filter operation, obtains waste liquid and filter
Slag.In this way, using above-mentioned intermittent pressurization and being filtered under diminished pressure operating method and being filtered operation, Neng Gou great to the mixed slurry
The effect of the filter operation is improved greatly.This is because, the solid-liquid in the mixed slurry is smaller at filtering initial stage, filtering
The impurity and filter residue adhered on the net can be also less, and the rate of filtration is very fast, therefore is filtered under diminished pressure operation using the long period, and uses
The pressure filtration of short period operates, but the impurity adhered on filter screen with the lasting progress of filter operation and filter
Slag can gradually increase, and the rate of filtration can slow down, therefore use the pressure filtration operating time of same time and be filtered under diminished pressure operation
Time；And arrived the filtering later period, the rate of filtration can be slower, thus use the short period be filtered under diminished pressure operation and long period plus
Press filtration operation, in this way, the solid-to-liquid ratio of the actual conditions of combined filtering operation and the mixed slurry, is added using intermittent
Operating method is pressed and be filtered under diminished pressure, filter efficiency can be greatly improved, and shorten filtration time, while being contained conducive to pollutant is obtained
It measures lower waste liquid and has adsorbed the waste residue of a large amount of organic pollutants and lithium ion.
S150, after carrying out heating and fragmentation procedure to the filter residue, then immersion desorption manipulation carried out using water, obtained containing lithium
Solution.
Waste residue by having adsorbed a large amount of organic pollutants and lithium ion carry out heating and fragmentation procedure after, then using water into
Row impregnates desorption manipulation, can obtain lithium-containing solution.It is appreciated that the filter residue is mainly adsorptivity powder and adsorbs wherein
Organic pollutant and deposit, also adsorbed the aluminum hydroxide precipitation of a large amount of lithium ions, by heating operation, can make
It obtains aluminium hydroxide to be thermally decomposed, so that the adsorptivity to lithium ion disappears, so that lithium ion is converted into water-soluble state.?
In one embodiment, described to carry out in heating and fragmentation procedure to the filter residue, heating temperature is 400 DEG C~800 DEG C, is added
The hot time is 0.5~2h, so, it is possible the aluminium hydroxide forfeiture adsorptivity so that in the filter residue, is taken off conducive to lithium ion
It is attached；After the completion of heating and being broken, then water is used to impregnate the broken filter residue, lithium-containing solution can be obtained, it can
Industrial recycling is carried out, in this way, improving the rate of recovery of valuable metal element in waste and old lithium ionic cell electrolyte waste water.Into one
Step, in the operation heated to the filter residue, it is also constantly passed through oxygen, in this way, being conducive to improve de- in the filter residue
Attached effect, so that the lithium ion being adsorbed on oxidationization aluminum precipitation is desorbed out, to obtain lithium ion content higher conducive to subsequent
Lithium-containing solution.
S160, the waste liquid is subjected to biodegradable operation, obtains waste water.
By carrying out biodegradable operation to the lower waste liquid of pollutant load, applying waste lithium ionic electricity can be further decreased
Pollutant load in the electrolyte waste water of pond, so that the pollutant load of obtained waste and old lithium ionic cell electrolyte waste water more connects
It is bordering on discharge standard required by national standard.
It is described by institute in one of the embodiments, in order to improve the degree of purification of waste and old lithium ionic cell electrolyte waste water
It states waste liquid to carry out in biodegradable operation, specifically comprises the following steps: to pass sequentially through the waste liquid anaerobic pond, anoxic pond, good
Oxygen pond and filtering ponds, wherein be also respectively provided with activated sludge.The further anaerobic pond described in one of the embodiments,
Dissolved oxygen amount be 0mg/L~0.2mg/L, the dissolved oxygen amount of the anoxic pond is 0.4mg/L~0.5mg/L, the aerobic tank it is molten
Oxygen amount is 2mg/L~4mg/L.It should be noted that the main function of anaerobic pond is to decompose larger molecular organics, formed
Small organic molecule further improves the biodegradability energy of waste and old lithium ionic cell electrolyte waste water, while can also be to biology
Extra activated sludge is digested in degeneration system, and the primary product in anaerobic pond has volatile fatty acid, alcohols, cream
Acid, carbon dioxide and hydrogen, wherein the waste liquid is 10h~30h in the residence time of anaerobic pond, be so, it is possible waste and old lithium
Larger molecular organics in ion battery electrolyte waste water are sufficiently decomposed；And the main function of anoxic pond is will to be difficult to handle
Larger molecular organics further adsorb and degrade, while reduce the waste water total nitrogen content and total phosphorus content, wherein it is described
Waste liquid is 5h~10h in the residence time of anoxic pond, and the larger molecular organics that so, it is possible to make it difficult to handle are in anoxic pond
It is largely adsorbed and degrades, so that total nitrogen content of the waste water and total phosphorus content substantially reduce；And the main work of aerobic tank
Be under the conditions of having existing for oxygen so that microorganism in the waste water organic matter carry out depth degradation, by a system
The biochemical reaction of column, releases energy step by step, is finally settled out with the inorganic matter of low energy position, wherein the waste liquid is in aerobic tank
Residence time be 5h~10h, so, it is possible further by the microorganism in the waste water aerobic tank be charged into row depth drop
Solution.It should also be noted that, further being adsorbed and being dropped to improve anoxic pond to reluctant larger molecular organics
Solution, for example, so, it is possible the degradation for improving the larger molecular organics in anoxic pond with glucose to provide carbon source for anoxic pond
Efficiency；In order to enable the dissolved oxygen amount in aerobic tank meets the needs of microorganism, for example, continuing to pour air progress into aerobic tank
Oxygen supply.
Also it should be strongly noted that being also respectively provided with active dirt in anaerobic pond, anoxic pond, aerobic tank and filtering ponds
Mud, it will be understood that complicated microorganism can be with the organic pollutant in the waste water such as carbon source, nitrogen source and nothing in activated sludge
Machine salt etc. is that nutriment to form complicated food chain can purify the waste water significantly.One embodiment wherein
In, the activated sludge includes Blastocystis, Blastocystis, Pediococcus, genus lactubacillus, biological enzyme and nutritional agents, in this way, energy
Enough substantially reduce total nitrogen content, total phosphorus content and the COD value (COD) in the waste water；Further, also aerobic
Sludge return pipe is arranged in the water outlet and anaerobic pond water inlet in pond, forms sludge reflux, so as to by different dissolved oxygens
Microorganism under degree environment is together in series, and under different oxygen dissolved environment, the microorganism of different Pseudomonas can be to different
The targeted degradation of pollutant, in this way, enabling to the microorganism in the movable sludge to each by sludge reflux
Pollutant in a pond plays good degradation and suction-operated, so that total nitrogen content, total phosphorus content and COD in the waste water
Value (COD) is further decreased.
S170, the waste water is passed through into reverse osmosis unit, is purified water.
By the way that the further purified waste water is passed through reverse osmosis unit, enable to remaining in the waste water
Bacterium and remaining salinity further remove so that every microelement in the waste water especially to environment and human body have compared with
The pollutant endangered greatly meets discharge standard required by national standard.In order to further increase the water quality of the purified water, example
Such as, a force (forcing) pump is set also in the reverse osmosis unit, by reverse osmosis treatment of pressurizeing, further such that in the waste water
Remaining bacterium and remaining salinity are removed, so that the purified water after the completion of processing meets discharge standard.
Compared with prior art, the present invention has at least the following advantages:
Waste lithium cell electrolyte wastewater treatment method provided by the invention is more thorough, so that waste lithium cell electrolyte
Generated waste water meets discharge standard required by national standard after valuable metal element extraction in waste water, in addition, also from waste and old
Extracted in lithium battery electrolytes waste water can industrial utilization again lithium-containing solution, it is useless to substantially increase waste lithium cell electrolyte
The rate of recovery of valuable metal element in water.
Here is specific embodiment part.
Embodiment 1
It after waste lithium cell battery core is cut, is impregnated into the water, obtains waste lithium cell electrolyte waste water；
Absorbent charcoal powder body and aluminium chloride are added into the waste lithium cell electrolyte waste water, carries out positive and negative convection current and washes away behaviour
After work, mixed slurry is obtained；
Calcium oxide is added into the mixed slurry, the pH value of the mixed slurry is adjusted to 7.0, then at 30 DEG C
1.5h is reacted under the conditions of temperature；
The mixed slurry is filtered operation, obtains waste liquid and filter residue；
Under the conditions of 400 DEG C of temperature, after the filter residue is heated 2h, broken dispersion is carried out, then impregnated using water
Desorption, obtains lithium-containing solution；
The waste liquid is first passed through into dissolved oxygen amount as the anaerobic pond of 0.2mg/L and stops 30h, is then by dissolved oxygen amount
The anoxic pond of 0.4mg/L and 7h is stopped, then be 2mg/L aerobic tank by dissolved oxygen amount and stop 8h, finally also passed through
Filter tank obtains waste water, wherein is also respectively set in anaerobic pond, anoxic pond, aerobic tank and filtering ponds containing Blastocystis, yeast
Pseudomonas, Pediococcus, genus lactubacillus, biological enzyme and nutritional agents activated sludge, and the water outlet of aerobic tank and anaerobic pond enter
Sludge return pipe is set at the mouth of a river, forms sludge reflux；
By the waste water by reverse osmosis unit, the purified water of embodiment 1 is obtained.
Embodiment 2
Waste lithium cell is stirred with graphite powder and is mixed, 20min is stood, carries out preliminary electric discharge operation；
The waste lithium cell after preliminary electric discharge is put into electric discharge pond；
Potassium hydroxide solution and sodium ascorbate buffer solution is added into electric discharge pond, carries out deep discharge operation；
A circulating pump is installed in electric discharge pond, and starts circulating pump and potassium hydroxide solution and sodium ascorbate is buffered
Solution constantly washes away the waste lithium cell；
When the electricity of the waste lithium cell reaches 1.6V, circulating pump is closed, completes deep discharge；
It after waste lithium cell battery core after deep discharge is cut, is impregnated into the water, obtains useless old lithium
Pond electrolyte waste water；
The waste coal matter column-shaped active carbon that specific surface area is 1200m2/g is added into the waste lithium cell electrolyte waste water
And aluminum sulfate obtains mixed slurry after carrying out positive and negative convection current flush operation；
Sodium hydroxide is added into the mixed slurry, the pH value of the mixed slurry is adjusted to 8.0, then at 40 DEG C
Temperature under the conditions of react 2h；
The mixed slurry is filtered operation, obtains waste liquid and filter residue；
Under the conditions of 600 DEG C of temperature, after the filter residue is heated 1.5h, broken dispersion is carried out, then soaked using water
Bubble desorption, obtains lithium-containing solution；
The waste liquid is first passed through into dissolved oxygen amount as the anaerobic pond of 0.1mg/L and stops 20h, is then by dissolved oxygen amount
The anoxic pond of 0.45mg/L and 8h is stopped, then be 3mg/L aerobic tank by dissolved oxygen amount and stop 9h, finally also passed through
Filter tank obtains waste water, wherein is also respectively set in anaerobic pond, anoxic pond, aerobic tank and filtering ponds containing Blastocystis, yeast
Pseudomonas, Pediococcus, genus lactubacillus, biological enzyme and nutritional agents activated sludge, and the water outlet of aerobic tank and anaerobic pond enter
Sludge return pipe is set at the mouth of a river, forms sludge reflux；
By the waste water by reverse osmosis unit, the purified water of embodiment 2 is obtained.
Embodiment 3
Waste lithium cell is stirred with graphite powder and is mixed, 30min is stood, carries out preliminary electric discharge operation；
The waste lithium cell after preliminary electric discharge is put into electric discharge pond；
The mixed liquor of sodium hydroxide solution, potassium hydroxide solution and sodium citrate buffer is added into electric discharge pond, it is complete
The waste lithium cell after full submergence preliminary electric discharge, carries out deep discharge operation；
A circulating pump is installed in electric discharge pond, and starts circulating pump and makes sodium hydroxide solution and buffered sodium citrate molten
Liquid constantly washes away the waste lithium cell；
When the electricity of the waste lithium cell reaches 1.5V, circulating pump is closed, completes deep discharge；
After waste lithium cell battery core after deep discharge is cut, then using after circulating water to the cutting
The waste lithium cell battery core is washed away, and waste lithium cell battery core is placed in the immersion washed away in liquid and carry out 48h, is given up
Old lithium pond electrolyte waste water；
Into the waste lithium cell electrolyte waste water be added specific surface area be 1500m2/g wooden column-shaped active carbon and
Aluminum nitrate obtains mixed slurry after carrying out positive and negative convection current flush operation；
Potassium hydroxide is added into the mixed slurry, the pH value of the mixed slurry is adjusted to 8.5, then at 50 DEG C
Temperature under the conditions of react 5h；
The mixed slurry is filtered operation, obtains waste liquid and filter residue；
Under the conditions of 800 DEG C of temperature, after the filter residue is heated 1.8h, broken dispersion is carried out, then soaked using water
Bubble desorption, obtains lithium-containing solution；
The waste liquid is first passed through into dissolved oxygen amount as the anaerobic pond of 0mg/L and stops 30h, is then by dissolved oxygen amount
The anoxic pond of 0.5mg/L and 10h is stopped, then be 4mg/L aerobic tank by dissolved oxygen amount and stop 10h, finally also passed through
Filtering ponds obtain waste water, wherein are also respectively set in anaerobic pond, anoxic pond, aerobic tank and filtering ponds containing Blastocystis, ferment
Female Pseudomonas, Pediococcus, genus lactubacillus, biological enzyme and nutritional agents activated sludge, and the water outlet and anaerobic pond of aerobic tank
Sludge return pipe is arranged in water inlet, forms sludge reflux；
By the waste water by reverse osmosis unit, the purified water of embodiment 3 is obtained.
By the waste lithium cell electrolyte wastewater treatment method of embodiment 1- embodiment 3, waste and old lithium can be substantially reduced
Organic pollutant content in battery electrolyte waste water, especially environmental pollution can for example cause the micro of water eutrophication
Element and more thoroughly degradation is carried out to the biggish microelement of human health damage and heavy metal element, such as dropped significantly
Total nitrogen content, total phosphorus content and COD value in low waste lithium cell electrolyte waste water, wherein embodiment 1- embodiment 3 it is net
The total nitrogen content for changing water is less than 12mg/L, and total phosphorus content is less than 1mg/L, and total fluorinated volume is less than 8mg/L, and COD value is less than 50mg/L,
Total nitrogen content of purified water that especially embodiment 3 obtains is 10mg/L, and total phosphorus content is 0.8mg/L, and total fluorinated volume is 7mg/
L, COD value 40mg/L meet national integrated wastewater discharge primary standard.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of waste lithium cell electrolyte wastewater treatment method, which comprises the following steps:
It after waste lithium cell battery core is carried out cutting operation, places into water and is impregnated, it is useless to obtain waste lithium cell electrolyte
Water；
Adsorptivity powder and aluminium salt are added into the waste lithium cell electrolyte waste water, after carrying out hybrid manipulation, is mixed
Slurry；
Alkaline conditioner is added into the mixed slurry, for adjusting the pH value of the mixed slurry；
The mixed slurry is filtered operation, obtains waste liquid and filter residue；
After carrying out heating and fragmentation procedure to the filter residue, then water is used to carry out immersion desorption manipulation, obtains lithium-containing solution；
The waste liquid is subjected to biodegradable operation, obtains waste water；
By the waste water by reverse osmosis unit, it is purified water.
2. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that described to described
It is added adsorptivity powder and aluminium salt in waste lithium cell electrolyte waste water, in mixed operation, the hybrid manipulation is positive
Oppose stream flush operation.
3. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that the mixing
Alkaline conditioner is added in slurry, in the operation of the pH value for adjusting the mixed slurry, the pH value tune of the mixed slurry
It saves to 7.0~8.5.
4. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that the adsorptivity powder
Body is at least one of absorbent charcoal powder body, waste lithium cell cathode powder and waste and old carbon dust.
5. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that the aluminium salt is chlorine
Change at least one of aluminium, aluminum sulfate and aluminum nitrate.
6. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that the adsorptivity powder
The mass ratio of body and the waste lithium cell electrolyte waste water is (0.01~0.1): 1.
7. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that described to the filter
Slag carries out in heating and fragmentation procedure, and heating temperature is 400 DEG C~800 DEG C, and heating time is 0.5~2h.
8. waste lithium cell electrolyte wastewater treatment method according to claim 1, which is characterized in that described described to give up
Liquid carries out specifically comprising the following steps: the waste liquid passing sequentially through anaerobic pond, anoxic pond, aerobic tank in biodegradable operation
And filtering ponds, wherein be also respectively provided with activated sludge.
9. waste lithium cell electrolyte wastewater treatment method according to claim 8, which is characterized in that the anaerobic pond
Dissolved oxygen amount is 0mg/L~0.2mg/L, and the dissolved oxygen amount of the anoxic pond is 0.4mg/L~0.5mg/L, the dissolved oxygen of the aerobic tank
Amount is 2mg/L~4mg/L.
10. waste lithium cell electrolyte wastewater treatment method according to claim 8, which is characterized in that the activity is dirty
Mud drum includes Blastocystis, Blastocystis, Pediococcus, genus lactubacillus, biological enzyme and nutritional agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147476.2A CN109467261A (en) | 2018-09-29 | 2018-09-29 | Waste lithium cell electrolyte wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147476.2A CN109467261A (en) | 2018-09-29 | 2018-09-29 | Waste lithium cell electrolyte wastewater treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109467261A true CN109467261A (en) | 2019-03-15 |
Family
ID=65663205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811147476.2A Pending CN109467261A (en) | 2018-09-29 | 2018-09-29 | Waste lithium cell electrolyte wastewater treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109467261A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845040A (en) * | 2019-11-11 | 2020-02-28 | 广东风华新能源股份有限公司 | Lithium ion battery electrolyte treatment method |
| CN112310500A (en) * | 2019-07-31 | 2021-02-02 | 中国科学院过程工程研究所 | Method for separating aluminum element from waste lithium iron phosphate material |
| CN113213677A (en) * | 2021-05-08 | 2021-08-06 | 三明学院 | Deep fluorine ion-containing wastewater treatment device |
| CN114524548A (en) * | 2022-03-07 | 2022-05-24 | 安徽浩悦环境科技有限责任公司 | Treatment method and treatment system for lithium battery electrolyte waste liquid |
| CN116081654A (en) * | 2023-01-13 | 2023-05-09 | 北京化工大学 | Method for safely and efficiently recycling lithium resources and fluorine resources in electrolyte and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783084A (en) * | 1997-05-01 | 1998-07-21 | Suenkonis; Charles M. | Process for the reclamation of process water from process wastewater generated in the battery manufacturing industry and other metals related industries |
| CN101397175A (en) * | 2008-11-10 | 2009-04-01 | 天津理工大学 | Innocent treatment process and device for waste and old lithium ionic cell electrolyte |
| CN101628761A (en) * | 2009-08-18 | 2010-01-20 | 湖南邦普循环科技有限公司 | Treatment method of nickel-cobalt-manganese wastewater generated in waste and old battery treatment process |
| CN105366884A (en) * | 2015-11-20 | 2016-03-02 | 太仓市振锋化工设备有限公司 | Printed circuit board sewage treatment method |
| CN105541043A (en) * | 2013-11-12 | 2016-05-04 | 天津卡特化工技术有限公司 | MBR and A2/O based treatment method of waste lithium battery electrolyte and electrolyte waste water |
| CN106396294A (en) * | 2016-12-06 | 2017-02-15 | 大同新成新材料股份有限公司 | Treatment method of lithium battery electrolyte cask washing wastewater |
-
2018
- 2018-09-29 CN CN201811147476.2A patent/CN109467261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783084A (en) * | 1997-05-01 | 1998-07-21 | Suenkonis; Charles M. | Process for the reclamation of process water from process wastewater generated in the battery manufacturing industry and other metals related industries |
| CN101397175A (en) * | 2008-11-10 | 2009-04-01 | 天津理工大学 | Innocent treatment process and device for waste and old lithium ionic cell electrolyte |
| CN101628761A (en) * | 2009-08-18 | 2010-01-20 | 湖南邦普循环科技有限公司 | Treatment method of nickel-cobalt-manganese wastewater generated in waste and old battery treatment process |
| CN105541043A (en) * | 2013-11-12 | 2016-05-04 | 天津卡特化工技术有限公司 | MBR and A2/O based treatment method of waste lithium battery electrolyte and electrolyte waste water |
| CN105366884A (en) * | 2015-11-20 | 2016-03-02 | 太仓市振锋化工设备有限公司 | Printed circuit board sewage treatment method |
| CN106396294A (en) * | 2016-12-06 | 2017-02-15 | 大同新成新材料股份有限公司 | Treatment method of lithium battery electrolyte cask washing wastewater |
Non-Patent Citations (8)
| Title |
|---|
| PRATIMA MESHRAMA ET AL.: "Extraction of lithium from primary and secondary sources by pre-treatment, leaching and separation: A comprehensive review", 《HYDROMETALLURGY》 * |
| 何争珍: "氢氧化铝沉淀法提取锂工艺研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 * |
| 刘远: "《食品生物技术导论》", 31 August 2007, 中国农业出版社 * |
| 国金证券研究所: "《解密新能源》", 31 May 2011, 文汇出版社 * |
| 杨铁军: "《产业专利分析报告（第26册）——氟化工》", 31 May 2014, 知识产权出版社 * |
| 环境保护部: "厌氧-缺氧-好氧活性污泥法", 《中华人民共和国国家环境保护标准》 * |
| 肖钢等: "《规模化储能技术综论》", 30 September 2017, 武汉大学出版社 * |
| 陈铭: "《汽车产品的回收利用》", 31 January 2017, 山海交通大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310500A (en) * | 2019-07-31 | 2021-02-02 | 中国科学院过程工程研究所 | Method for separating aluminum element from waste lithium iron phosphate material |
| CN110845040A (en) * | 2019-11-11 | 2020-02-28 | 广东风华新能源股份有限公司 | Lithium ion battery electrolyte treatment method |
| CN113213677A (en) * | 2021-05-08 | 2021-08-06 | 三明学院 | Deep fluorine ion-containing wastewater treatment device |
| CN113213677B (en) * | 2021-05-08 | 2022-05-10 | 三明学院 | Deep fluorine ion-containing wastewater treatment device |
| CN114524548A (en) * | 2022-03-07 | 2022-05-24 | 安徽浩悦环境科技有限责任公司 | Treatment method and treatment system for lithium battery electrolyte waste liquid |
| CN116081654A (en) * | 2023-01-13 | 2023-05-09 | 北京化工大学 | Method for safely and efficiently recycling lithium resources and fluorine resources in electrolyte and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109467261A (en) | Waste lithium cell electrolyte wastewater treatment method | |
| Du et al. | Progresses in sustainable recycling technology of spent lithium‐ion batteries | |
| Xiao et al. | Challenges to future development of spent lithium ion batteries recovery from environmental and technological perspectives | |
| CN110783658B (en) | Ex-service power ternary lithium battery recovery demonstration process method | |
| CN103943911B (en) | The method of waste and old lithium ion battery comprehensive reutilization | |
| CN106848475B (en) | A kind of waste and old lithium ion battery pre-treatment green reclaim processing method and its equipment | |
| CN104852102B (en) | A kind of waste and old lithium ionic cell electrolyte recycling and method for innocent treatment and device | |
| CN108486376A (en) | A method of leaching metal in waste lithium ion cell anode material | |
| CN101318692B (en) | Method for preparing high quality lead dioxide with plumbum mud in waste lead acid accumulator | |
| WO2010003382A1 (en) | Method for implementing full cycle regeneration of waste lead acid battery | |
| CN108913873A (en) | A method of recycling high added value metal from waste and old nickel cobalt manganese lithium ion battery | |
| CN109868364A (en) | A kind of waste lithium cell wet process line recovery method | |
| Zhao et al. | Recycling technology and principle of spent lithium-ion battery | |
| CN101599563A (en) | The method of positive electrode active materials in a kind of high efficiente callback waste lithium cell | |
| Song et al. | Advancing recycling of spent lithium-ion batteries: From green chemistry to circular economy | |
| CN106876821A (en) | A kind of new energy resource power battery Dismantlement equipment | |
| CN112742843B (en) | Method for recycling waste lithium manganate battery through flotation and solid phase sintering | |
| CN109609761A (en) | A kind of recovery method of waste and old lithium ion battery | |
| CN115569479A (en) | Tail gas treatment system in crushing and sorting process of scrapped power lithium battery | |
| CN206179892U (en) | Solar cell processing procedure chemical liquid recycling apparatus | |
| CN108486379B (en) | The efficient separation method of arsenic and alkali in a kind of arsenic alkaline slag | |
| CN106756010A (en) | The method that fluorine in solution of zinc sulfate is removed after the roasting of zinc metallurgy white residue | |
| CN106222425A (en) | The sulfur method of lead plaster in a kind of waste and old lead acid accumulator | |
| Su et al. | High-efficiency preferential extraction of lithium from spent lithium-ion battery cathode powder via synergistic treatment of mechanochemical activation and oxidation roasting | |
| CN101792862B (en) | Method for recovering metal through purified flue gas of scrap nickel-hydrogen battery |
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: 20190315 |