CN109485204A - A kind of ternary material producing wastewater treatment - Google Patents
A kind of ternary material producing wastewater treatment Download PDFInfo
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- CN109485204A CN109485204A CN201811406054.2A CN201811406054A CN109485204A CN 109485204 A CN109485204 A CN 109485204A CN 201811406054 A CN201811406054 A CN 201811406054A CN 109485204 A CN109485204 A CN 109485204A
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- wastewater treatment
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/346—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from semiconductor processing, e.g. waste water from polishing of wafers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
-
- 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
- C02F3/02—Aerobic processes
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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)
- Removal Of Specific Substances (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention provides a kind of ternary material producing wastewater treatments, operate ammonia-containing water progress ammonia still process to obtain pretreated waste water；Other waste materials are pre-processed to obtain pre-treat waste material by causticization；It carries out pre-treat waste material and pretreated waste water to be mixed to get preconditioned mixture；The first sediment and the first supernatant are obtained after preconditioned mixture is precipitated；It extracts the first supernatant and adjusts its pH value, obtain the second sediment and can be with the liquid of qualified discharge after carrying out secondary precipitation after decomposing by aerobic tank；Sludge and the second supernatant are obtained after second sediment and the first sediment are carried out filters pressing, the second supernatant is added in step S12 and is mixed, sludge is recycled.The logical metallic element that can effectively remove in the first supernatant of the present invention, is handled, then discharged so that ternary material generates waste water, can effectively improve environmental-protecting performance, and processing step is simple and convenient, be can be improved treatment effeciency and is reduced processing cost.
Description
Technical field
The present invention relates to technical field of waste water processing more particularly to a kind of ternary material producing wastewater treatments.
Background technique
After being released for the first time using carbon as the lithium ion secondary battery product of cathode in nineteen ninety from Japanese Sony company, because having
The advantages that operating voltage is high, capacity is big, good cycle, long service life, lithium ion battery is set in portable electronic at present
The fields such as standby, electric car, Space Facilities, national defense industry, which have, to be widely applied.In lithium ion battery product form part,
Positive electrode is in occupation of most important status, and wherein tertiary cathode material becomes the heat of Recent study because having excellent performance
Point.
In the production process of anode material of lithium battery, a large amount of industrial wastewater can be generated.Wherein, ternary precursor waste water
Mainly there are mother liquor and wash water, main component is the metals such as sodium sulphate and free ammonia and a small amount of Ni, Co, Mn, this kind of waste water
Optimization process scheme is exactly to recycle heavy metal ion-deamination-evaporation recycling sodium salt, realizes full constituent comprehensive utilization and zero-emission.
But in the actual production process, turn of the market often leads to the fluctuation of ternary precursor yield, to ternary forerunner
Links have higher operating flexibility requirement, especially ternary precursor wastewater treatment link in body production.Waste water water with
And ammonia nitrogen and salinity fluctuations are larger in waste water, existing process operations are troublesome and treatment effect is bad, often result in discharge
The problems such as not up to standard, energy consumption increases, and greatly shortens service life of equipment.
Summary of the invention
The present invention in order to solve the technical problem, provides a kind of ternary material producing wastewater treatment.
The present invention provides a kind of ternary material producing wastewater treatments, comprising the following steps:
Step S11: it operates ammonia-containing water progress ammonia still process to obtain pretreated waste water；
Step S12: other waste materials are pre-processed to obtain pre-treat waste material by causticization；
Step S13: it carries out pre-treat waste material and pretreated waste water to be mixed to get preconditioned mixture；
Step S14: the first sediment and the first supernatant are obtained after preconditioned mixture is precipitated；
Step S15: it extracts the first supernatant and adjusts its pH value, obtain second after carrying out secondary precipitation after decomposing by aerobic tank
Sediment and can be with the liquid of qualified discharge；
Step S16: sludge and the second supernatant are obtained after the second sediment and the first sediment are carried out filters pressing, by the second supernatant
Liquid is added in step S12 and is mixed, and sludge is recycled.
Further, other described waste materials include other process residues and reaction purification waste material.
Further, the causticization pretreatment in the step S12 is pre-processed by adding lime white.
Further, in the step S15, pH value is adjusted by addition dilute sulfuric acid.
Further, before the step S11 further include:
Step S10: sodium hydroxide or sodium carbonate, adjusting pH value to 10~12, after adjusting pH value first is added into ammonia-containing water
Ammonia-containing water enter sedimentation basin；Surfactant, the addition of surfactant is added to the ammonia-containing water for entering sedimentation basin again
Amount is 0.001~0.002wt% of the ammonia-containing water, is stirred 10~20 minutes, stands 1~2 hour；Obtain sedimentation basin lower layer
Precipitate the ammonia-containing water on waste material and upper layer.
Further, the surfactant is cationic surfactant, anionic surfactant, fluorine carbon type table
One or more of face activating agent.
The beneficial effects of the present invention are: the present invention by by ammonia-containing water carry out ammonia still process processing, can be effectively by waste water
In ammonia separate, also volatilization ammonium salt can be converted by the solid ammonium-salt in waste water, convenient for subsequent further to waste water
Processing；Waste water is mixed with other feeds, can be inhaled the impurity in waste water by the effect of other waste materials
It is attached, by being separated after precipitating, the first supernatant is handled using dilute sulfuric acid, can effectively be removed in the first supernatant
Metallic element is handled so that ternary material generates waste water, then is discharged, and environmental-protecting performance can be effectively improved, and is located
It is simple and convenient to manage step, can be improved treatment effeciency and reduces processing cost.
Detailed description of the invention
Fig. 1 is the step flow chart of one ternary material producing wastewater treatment of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below by specific embodiment combination attached drawing, invention is further described in detail.
As shown in Figure 1, the present invention provides a kind of ternary material producing wastewater treatments, comprising the following steps:
Step S11: it operates ammonia-containing water progress ammonia still process to obtain pretreated waste water；
Step S12: other waste materials are pre-processed to obtain pre-treat waste material by causticization；
Step S13: it carries out pre-treat waste material and pretreated waste water to be mixed to get preconditioned mixture；
Step S14: the first sediment and the first supernatant are obtained after preconditioned mixture is precipitated；
Step S15: it extracts the first supernatant and adjusts its pH value, obtain second after carrying out secondary precipitation after decomposing by aerobic tank
Sediment and can be with the liquid of qualified discharge；
Step S16: sludge and the second supernatant are obtained after the second sediment and the first sediment are carried out filters pressing, by the second supernatant
Liquid is added in step S12 and is mixed, and sludge is recycled.
The present invention by by ammonia-containing water carry out ammonia still process processing, effectively the ammonia in waste water can be separated,
Volatilization ammonium salt can be converted by the solid ammonium-salt in waste water, waste water is further handled convenient for subsequent；By waste water and other
Feed is mixed, and can be adsorbed the impurity in waste water by the effect of other waste materials, by being separated after precipitating, benefit
The first supernatant is handled with dilute sulfuric acid, the metallic element in the first supernatant can be effectively removed, so that three
First material generates waste water and is handled, then is discharged, and can effectively improve environmental-protecting performance, processing step is simple and convenient, can
It improves treatment effeciency and reduces processing cost.
In one alternate embodiment, other described waste materials include other process residues and reaction purification waste material.The step
Causticization pretreatment in rapid S12 is pre-processed by adding lime white.In the step S15, adjusted by addition dilute sulfuric acid
PH value.
In one alternate embodiment, before the step S11 further include:
Step S10: sodium hydroxide or sodium carbonate, adjusting pH value to 10~12, after adjusting pH value first is added into ammonia-containing water
Ammonia-containing water enter sedimentation basin；Surfactant, the addition of surfactant is added to the ammonia-containing water for entering sedimentation basin again
Amount is 0.001~0.002wt% of the ammonia-containing water, is stirred 10~20 minutes, stands 1~2 hour；Obtain sedimentation basin lower layer
Precipitate the ammonia-containing water on waste material and upper layer.The surfactant be cationic surfactant, anionic surfactant,
One or more of fluorine carbon type surfactant.
The present invention utilizes existing equipment, does not increase infrastructure investment, therefore expense is low, operating cost is few.In addition, in pretreatment work
It joined surfactant in skill, surfactant plays the role of the gas floatation agent that foams during dissolved air flotation, so that air bearing point
It is good from effect, the tar light oil in ternary waste water can be removed, tar content is 50~100mg/L after oil removing.It is living by surface
Property agent treated ternary wastewater surface tension reduce so that the mass-transfer efficiency of steam and ammonium hydroxide increases in ammonia still, reach and mention
The effect of high ammonia still process column efficiency, ammonia-nitrogen removal rate mentions 3~5% under conditions of former ammonia distillation process is constant, and the ammonia nitrogen after ammonia still process contains
Amount is 100~200mg/L, better than former ammonia nitrogen removal effect, so that the carbon-nitrogen ratio that wastewater biochemical is handled after ammonia still process improves, meets carbon
Nitrogen is reinforced than the basic demand greater than 6, biodegradability, substantially without carbon source is separately added, the cost of biochemical treatment is greatly lowered, is
Enterprise realizes environmental benefit and economic benefit bumper harvests.Present invention investment is small, operating cost is low and deoiling effect is good, uses this method
The ternary waste water energy of processing mitigates the clogging of ammonia still, reduces gas-liquid mass transfer resistance, improves ammonia still process column efficiency, reduces ammonia still process
Ammonia-nitrogen content in ternary waste water afterwards, making that treated, wastewater biodegradability is strong, and the cost of biochemical treatment is greatly lowered.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (6)
1. a kind of ternary material producing wastewater treatment, which comprises the following steps:
Step S11: it operates ammonia-containing water progress ammonia still process to obtain pretreated waste water；
Step S12: other waste materials are pre-processed to obtain pre-treat waste material by causticization；
Step S13: it carries out pre-treat waste material and pretreated waste water to be mixed to get preconditioned mixture；
Step S14: the first sediment and the first supernatant are obtained after preconditioned mixture is precipitated；
Step S15: it extracts the first supernatant and adjusts its pH value, obtain second after carrying out secondary precipitation after decomposing by aerobic tank
Sediment and can be with the liquid of qualified discharge；
Step S16: sludge and the second supernatant are obtained after the second sediment and the first sediment are carried out filters pressing, by the second supernatant
Liquid is added in step S12 and is mixed, and sludge is recycled.
2. a kind of ternary material producing wastewater treatment as described in claim 1, which is characterized in that other described waste material packets
Include other process residues and reaction purification waste material.
3. a kind of ternary material producing wastewater treatment as claimed in claim 2, which is characterized in that in the step S12
Causticization pretreatment by addition lime white pre-processed.
4. a kind of ternary material producing wastewater treatment as described in claim 1, which is characterized in that in the step S15,
PH value is adjusted by addition dilute sulfuric acid.
5. a kind of ternary material producing wastewater treatment as described in claim 1, which is characterized in that the step S11 it
Before further include:
Step S10: sodium hydroxide or sodium carbonate, adjusting pH value to 10~12, after adjusting pH value first is added into ammonia-containing water
Ammonia-containing water enter sedimentation basin；Surfactant, the addition of surfactant is added to the ammonia-containing water for entering sedimentation basin again
Amount is 0.001~0.002wt% of the ammonia-containing water, is stirred 10~20 minutes, stands 1~2 hour；Obtain sedimentation basin lower layer
Precipitate the ammonia-containing water on waste material and upper layer.
6. a kind of ternary material producing wastewater treatment as claimed in claim 5, which is characterized in that the surface-active
Agent is one or more of cationic surfactant, anionic surfactant, fluorine carbon type surfactant.
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| CN201811406054.2A CN109485204A (en) | 2018-11-23 | 2018-11-23 | A kind of ternary material producing wastewater treatment |
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Application publication date: 20190319 |