CN106219833A - Process for heavy metal containing wastewater treatment - Google Patents
Process for heavy metal containing wastewater treatment Download PDFInfo
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- CN106219833A CN106219833A CN201610756318.1A CN201610756318A CN106219833A CN 106219833 A CN106219833 A CN 106219833A CN 201610756318 A CN201610756318 A CN 201610756318A CN 106219833 A CN106219833 A CN 106219833A
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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
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a kind of process for heavy metal containing wastewater treatment, comprise the following steps: heavy metal wastewater thereby clear liquid after pretreatment is electrochemically reacted, intermittent aerating in course of reaction, products therefrom carries out settlement separate, remove the solid slag of iron content, gained turbid solution carries out aerated reaction, gained mixed liquor adds coagulant and carries out coagulating, form flco to settle, after solid-liquid separation, gained supernatant carries out reuse or qualified discharge, and gained bed mud carries out post processing, completes the process of heavy metal waste water.The process heavy metal high treating effect of the present invention, can effectively solve pole plate passivation problem, makes pole plate utilization rate height, process runs well unimpeded.
Description
Technical field
The invention belongs to the technical field of heavy metal containing wastewater treatment, be specifically related to a kind of work for heavy metal containing wastewater treatment
Process.
Background technology
Electrochemical process wastewater processing technology, as a kind of environmental friendliness water technology, administers neck at heavy metal wastewater thereby at present
Territory is extensively applied.This technical matters is simple, floor space is little, operational effect is good, expense is low, heavy metal is removed has preferably
Effect, it is possible to the effective heavy metal ion removed in water, be allowed to complete emission compliance, can be used for removing containing cadmium, arsenic, antimony,
The waste water of the heavy metal ion such as copper, zinc, hydrargyrum, silver, nickel, electro-chemical systems can pass through electrolysis-coagulation, electrofloatation and electrolysis
Heavy metal ion is combined into solid particle by the form of complex in its most stable of mode by oxidoreduction, precipitates from water
Out, removed.
Electrochemical process, by adding unidirectional current to plurality of steel plates, produces electric field between steel plate, makes pending water flow into steel
The space of plate.In this electric field, the steel plate of energising is understood some and is consumed and enters in water.Ion in electric field and nonionic
Pollutant are energized, and with the product of ionization in electric field and consume the steel plate entered in water and react.In the process, respectively
Plant the result of ionic interaction, it is common that be combined into solid particle with its most stable of form, be precipitated out from water.At electricity
In the electrolytic process of chemical reactor, can be briefly described is three kinds of effects, mainly includes three aspects: electrolysis-coagulation, electrolysis
Air supporting and electrolysis oxidation-reduction.
1) electrolysis-coagulation refers to that the cation that soluble anode produces passes through hydrolysis, polymerization, can produce a series of
Multinuclear hydroxo complex and hydroxide, these materials just can carry out flocculation and make as flocculant to float in water and colloid
With, its flocculating effect is more much higher than traditional flocculant.
2) electrofloatation refers to that water produces a small amount of O when electrolysis2And H2Microbubble, the particle diameter of these bubbles and density are all
The least, there is certain absorbability and floating loading capability, the pollutant flocculation group produced in water can be adsorbed and float to the water surface,
Thus reach the effect of solid-liquid separation.
3) electrolysis oxidation-reduction refers to the Cl that water produces in electrolytic process-、ClO-、O2Etc. the material with strong oxidizing property
Some macromole organic pollution in water can be oxidized to small organic molecule, some material also can be oxidized to CO2With
H2O and directly remove, small organic molecule by flocculation and air supporting just can remove very well.
Multiple synergism due to electrochemistry so that it is the pollutant kind that can degrade is many, efficiency is high, thus is extensively adopted
With.
But, although this process has a lot of application advantage relative to other process for treating heavy-metal waste water, but actual
Application process still suffers from that a certain degree of pole plate passivation, pole plate utilization rate are relatively low for some species of heavy metal wastewater thereby, produces
Raw iron filings slag easily blocks the problem such as subsequent technique pipeline, follow-up flocculating sedimentation system effect instability.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that a heavy metal species high treating effect,
Can effectively solve pole plate passivation, make the technique for heavy metal containing wastewater treatment that pole plate utilization rate is high, process runs well is unimpeded
Method.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of process for heavy metal containing wastewater treatment, comprises the following steps:
(1) heavy metal wastewater thereby clear liquid after pretreatment is electrochemically reacted, reactant liquor is carried out by course of reaction
Intermittent aerating；
(2) product electrochemical reaction obtained carries out settlement separate, removes the solid slag of iron content；
(3) the settlement separate turbid solution obtained is carried out aerated reaction；
(4) in the mixed liquor that aerated reaction obtains, add coagulant, carry out coagulating, form flco and settle,
After solid-liquid separation, gained supernatant carries out reuse or qualified discharge, and gained bed mud carries out post processing, completes heavy metal waste water
Process.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (1), described heavy metal
In waste water and clear liquid: float≤200mg/L, pH 7～11, total metals≤100mg/L.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that the electrochemical reaction mistake of described step (1)
Cheng Zhong, is filled with air in reactant liquor at interval of 1min～5min and carries out intermittent aerating, the air charge of each intermittent aerating
It is 2～5: 1 with the volume ratio of described heavy metal wastewater thereby clear liquid.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (2), described sedimentation divides
From time be 3min～10min.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (3), described aeration is anti-
The gas that should be filled with is air, and described air is 3～5: 1 with the volume ratio of described turbid solution.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (3), described aeration is anti-
The time answered is 20min～30min.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (4), described coagulant
For PAM (polyacrylamide).
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (4), described bed mud
Post processing refers to: be returned in the pretreatment of step (1) as coprecipitated dose part (preferably 20%～50%) bed mud to a huge sum of money
Belonging to waste water and carry out coagulating treatment, remainder bed mud is carried out concentration, after concentration, gained supernatant is returned to step (1)
In heavy metal wastewater thereby clear liquid, after concentration, gained mud is as Solid state fermentation.
In the above-mentioned process for heavy metal containing wastewater treatment, it is preferred that in described step (1), described pretreatment
Refer to that heavy metal waste water carries out alkali liquor neutralisation treatment, the process of alkali liquor iron salt, vulcanizing treatment, chemical oxidation treatment or electronation
Process, obtain heavy metal wastewater thereby clear liquid.
In the step (4) of the present invention, the detailed process of coagulating do not had special requirement, for common process.
In the present invention, electrochemical process processes heavy metal wastewater thereby is to utilize applied voltage to carry out electrolysis wastewater, generally uses solubility
Anode ferrum (Fe), generates Fe on anode2+、Fe3+Etc. OH in cation, with water-Ions binding becomes Fe (OH)2、Fe(OH)3Etc. micro-
Wadding agent.Simultaneously during electrolysis at electric field environment under waste water also there occurs the electrochemistry mistake of electro-redox and electrophoresis
Journey so that the ferrum flco containing heavy metal of formation is more stable, solid.
Electrode material conventional in electrochemical process is ferrum, passes to unidirectional current between the anode and cathode, and the electrode of generation is anti-
Should be as follows:
Iron anode
Fe-2e → Fe2+ (1)
In the basic conditions
Fe2++2OH-→Fe(OH)2 (2)
Aerating oxidation further
4Fe2++O2+2H2O→4Fe3++4OH- (3)
It addition, the electrolysis of water has hydrogen to release at negative electrode
2H2O+2e→H2+2OH- (4)
Compared with prior art, it is an advantage of the current invention that:
The process for heavy metal containing wastewater treatment of the present invention uses the process route of brand-new design, to a current huge sum of money
Belong to waste water treatment process and carry out novelty improvement, electrochemical reaction process carries out intermittent aerating, pole plate is had souring, energy
Enough effectively solution pole plate passivation problems；Arranging detritus tank after electrochemical reaction, the scum producing reaction carries out initial gross separation, energy
Scum is enough avoided to pile up in subsequent technique facility and affect the unimpeded operation of technique；Aerating oxidation is carried out after electrochemistry sediment,
While physics de-bubble, ferrous ion is aoxidized, to avoid follow-up water outlet affects muddy the asking of water outlet because of ferrous ion
Topic.The process of the present invention can make all kinds of heavy metal wastewater thereby stably reach every profession and trade pollutant emission standard, has simultaneously
Effectively solve pole plate passivation, raising pole plate utilization rate, ensure that the technology such as unimpeded stable, the reduction system maintenance frequency of process operation are excellent
Gesture.
Accompanying drawing explanation
Fig. 1 is the process chart in the embodiment of the present invention for heavy metal containing wastewater treatment.
Detailed description of the invention
Below in conjunction with concrete preferred embodiment and Figure of description, the invention will be further described, but the most therefore and
Limit the scope of the invention.
Embodiment 1
The process for heavy metal containing wastewater treatment of a kind of present invention, as it is shown in figure 1, heavy metal wastewater thereby used is certain
Lead-zinc Smelting Enterprises production after pretreatment waste water, mainly includes in Calx and pretreated acid heavy metal wastewater is clear
Liquid.Process comprises the following steps:
(1) pretreated heavy metal wastewater thereby clear liquid (i.e. heavy metal wastewater thereby pretreatment supernatant) is sent into intermediate pool, in
Between pond clear liquid with 50m3The water yield of/h enters in electrochemical apparatus and is electrochemically reacted, in clear liquid SS≤200mg/L, pH 7～
11, total metals≤100mg/L, be filled with 1.7m at interval of 5min3The air of/min carries out intermittent aerating, each intermittent aerating
Air charge be by 2 times of electrochemical apparatus wastewater treatment capacity, i.e. the body of air and heavy metal wastewater thereby clear liquid (reactant liquor)
Long-pending ratio is 2: 1.
(2) reaction mixture obtained after electrochemical reaction in step (1) is entered detritus tank is carried out settlement separate, separate
The solid slag of iron content, obtains turbid solution, and the most settlement separate time of staying is 3min.By to generation in electrochemical reaction process
The solid slag of iron content separates, to avoid it to adversely affect subsequent technique facility.
(3) entering in Aeration tank by the turbid solution obtained after settlement separate in step (2), being filled with air, to carry out aeration anti-
Should.Aeration tank uses perforated pipe to be filled with 2.5m3The air of/min, the air capacity that is filled with settlement separate after the turbid solution that obtains
Volume ratio is 3: 1, and the time of aerated reaction is 25min.
(4) mixed liquor obtained after aerated reaction in step (3) is entered in coagulation reaction tank, add PAM and carry out coagulation
Reaction, forms bulky grain flco, and discharges it in sedimentation tank and clarify, obtain supernatant and bed mud after solid-liquid separation.Institute
Obtain supernatant and carry out reuse or qualified discharge；Gained bed mud carries out subsequent treatment, including by a part of bed mud of gained (preferably
20%～50%) it is transmitted back in pretreatment Calx and process section carries out coagulating, as coprecipitated dose of intensive treatment effect, residue
Bed mud enters sludge concentration tank and carries out concentration.
The supernatant that in the present embodiment, bed mud concentration obtains enters intermediate pool, and the mud obtained after concentration is through dirt
Making Solid state fermentation after the compression dehydration of mud dewaterer, gained mud cake transports outward environmental protection treatment separately, and gained filtrate enters intermediate pool.Above
Just the process of heavy metal waste water is completed.
In this example " lead, the Zn Cr coating pollutant emission standard " of intermediate pool waste water, sedimentation tank water outlet and execution
(GB25466-2010) the detection Data Comparison that index of correlation requires, as shown in table 1.
The detection Data Comparison of each index of waste water before and after table 1 process
As seen from the above table, heavy metal wastewater thereby after pretreatment, then after the electrochemical process PROCESS FOR TREATMENT of the present invention, every
Heavy metal index is entirely capable of meeting " lead, Zn Cr coating pollutant emission standard " (GB 25466-2010) index of correlation requirement.
Not having the phenomenon of pole plate passivation during the present embodiment process operation, the utilization rate of pole plate reaches 91.27%.In work
In skill running, flocculating effect is stable, and water outlet is limpid, and concentration of suspension is stable at below 20mg/L, and electrochemical reaction produces
Waste residue is recycled, and decreases the generation amount of heavy metal containing wastewater treatment process waste residue to a certain extent.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement
Example.All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It it is noted that for the art
Those of ordinary skill for, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1., for a process for heavy metal containing wastewater treatment, comprise the following steps:
(1) heavy metal wastewater thereby clear liquid after pretreatment is electrochemically reacted, reactant liquor is carried out interval by course of reaction
Aeration；
(2) product electrochemical reaction obtained carries out settlement separate, removes the solid slag of iron content；
(3) the settlement separate turbid solution obtained is carried out aerated reaction；
(4) in the mixed liquor that aerated reaction obtains, add coagulant, carry out coagulating, form flco and settle, through solid
After liquid separates, gained supernatant carries out reuse or qualified discharge, and gained bed mud carries out post processing, completes the place of heavy metal waste water
Reason.
Process for heavy metal containing wastewater treatment the most according to claim 1, it is characterised in that described step (1)
In, in described heavy metal wastewater thereby clear liquid: float≤200mg/L, pH 7～11, total metals≤100mg/L.
Process for heavy metal containing wastewater treatment the most according to claim 1, it is characterised in that described step (1)
Electrochemical reaction process in, in reactant liquor, be filled with air at interval of 1min～5min and carry out intermittent aerating, every time interval exposes
The air charge of gas is 2～5: 1 with the volume ratio of described heavy metal wastewater thereby clear liquid.
4. according to the process for heavy metal containing wastewater treatment according to any one of claims 1 to 3, it is characterised in that
In described step (2), the described settlement separate time is 3min～10min.
5. according to the process for heavy metal containing wastewater treatment according to any one of claims 1 to 3, it is characterised in that
In described step (3), the gas that described aerated reaction is filled with is air, and described air is 3～5 with the volume ratio of described turbid solution
∶1。
Process for heavy metal containing wastewater treatment the most according to claim 5, it is characterised in that described step (3)
In, the time of described aerated reaction is 20min～30min.
7. according to the process for heavy metal containing wastewater treatment according to any one of claims 1 to 3, it is characterised in that
In described step (4), described coagulant is PAM.
8. according to the process for heavy metal containing wastewater treatment according to any one of claims 1 to 3, it is characterised in that
In described step (4), the post processing of described bed mud refers to: be returned to by part bed mud in the pretreatment of step (1) as coprecipitated
Agent heavy metal waste water carries out coagulating treatment, and remainder bed mud is carried out concentration, and after concentration, gained supernatant is returned to
In the heavy metal wastewater thereby clear liquid of step (1), after concentration, gained mud is as Solid state fermentation.
9. according to the process for heavy metal containing wastewater treatment according to any one of claims 1 to 3, it is characterised in that
In described step (1), described pretreatment refers to that heavy metal waste water is carried out at alkali liquor neutralisation treatment, the process of alkali liquor iron salt, sulfuration
Reason, chemical oxidation treatment or electronation process, and obtain heavy metal wastewater thereby clear liquid.
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| CN201610756318.1A CN106219833A (en) | 2016-08-29 | 2016-08-29 | Process for heavy metal containing wastewater treatment |
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| CN201610756318.1A CN106219833A (en) | 2016-08-29 | 2016-08-29 | Process for heavy metal containing wastewater treatment |
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Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186460A (en) * | 2016-08-04 | 2016-12-07 | 长沙华时捷环保科技发展股份有限公司 | A kind of processing method of waste water containing thallium |
| CN112687972A (en) * | 2020-12-25 | 2021-04-20 | 广东莞绿环保工程有限公司 | System and method for treating and recovering cobalt in lithium battery waste liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880206A (en) * | 2012-12-20 | 2014-06-25 | 深圳职业技术学院 | Sludge dynamic nucleation flocculated heavy metal wastewater advanced treatment method |
| CN204529550U (en) * | 2015-04-10 | 2015-08-05 | 河南亿臣环保科技有限公司 | The flocculation integrated equipment of electricity |
-
2016
- 2016-08-29 CN CN201610756318.1A patent/CN106219833A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880206A (en) * | 2012-12-20 | 2014-06-25 | 深圳职业技术学院 | Sludge dynamic nucleation flocculated heavy metal wastewater advanced treatment method |
| CN204529550U (en) * | 2015-04-10 | 2015-08-05 | 河南亿臣环保科技有限公司 | The flocculation integrated equipment of electricity |
Non-Patent Citations (1)
| Title |
|---|
| 骆林平等: "《沼液无害化处理与资源化利用实用技术》", 29 May 2015, 中国农业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186460A (en) * | 2016-08-04 | 2016-12-07 | 长沙华时捷环保科技发展股份有限公司 | A kind of processing method of waste water containing thallium |
| CN106186460B (en) * | 2016-08-04 | 2019-07-16 | 长沙华时捷环保科技发展股份有限公司 | A kind of processing method of waste water containing thallium |
| CN112687972A (en) * | 2020-12-25 | 2021-04-20 | 广东莞绿环保工程有限公司 | System and method for treating and recovering cobalt in lithium battery waste liquid |
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