CN108046501A - A kind of processing method of aluminium electroloysis fluoride waste - Google Patents
A kind of processing method of aluminium electroloysis fluoride waste Download PDFInfo
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- CN108046501A CN108046501A CN201711393917.2A CN201711393917A CN108046501A CN 108046501 A CN108046501 A CN 108046501A CN 201711393917 A CN201711393917 A CN 201711393917A CN 108046501 A CN108046501 A CN 108046501A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/041—Treatment of water, waste water, or sewage by heating by distillation or evaporation by means of vapour compression
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F11/00—Treatment of sludge; Devices therefor
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- 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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- 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)
Abstract
Fluoride waste is pumped to integral water purifier and is filtered purification by a kind of processing method of aluminium electroloysis fluoride waste, and supernatant flows directly into intermediate pool, and underflow is discharged into sludge-tank after precipitation；Calcium hydroxide and polyacrylamide are put into sludge-tank, remove the fluoride in sludge, fluorine-containing supernatant in sludge-tank is sent to spare pond, fluorine-containing sludge underflow is evacuated to sludge dewatering system, mud cake is pressed into through inclined-tube sedimentation tank, the dewatered sludge of sludge dewatering equipment, filtrate is pumped to spare pond；The fluoride waste in spare pond is sent into integral water purifier, and filtration, purification, supernatant flow directly into intermediate pool again, and underflow is discharged into sludge-tank after precipitation；The supernatant of intermediate pool is pumped to the separation of refined filtration filter, ultrafiltration system, counter-infiltration system progress fluoride waste successively, Aluminum Electrolysis Production process is made in the fresh water reuse isolated, and concentrated water is sent to MVR crystallizing evaporators.Present invention processing water is larger, investment is small, and high treating effect can realize zero-emission.
Description
Technical field
Processing and Application way the present invention relates to a kind of fluoride waste, more particularly to a kind of place of aluminium electroloysis fluoride waste
Reason method belongs to aluminium electroloysis technical field of waste water processing.
Background technology
Waste water is not also generated in itself and without using water in aluminum electrolysis process, and the waste water of aluminum electrolysis process mainly comes
The component cooling water of auxiliary facility aluminium and aluminium alloy casting and air compression station etc. is come from, wherein the indirect cooling water not contacted with product
It is general not contaminated, the simply temperature rise of water.In addition, the dust that electrolysis production process generates descend slowly and lightly after to ground and initial stage rain
Water forms waste water, while partial electrolyte aluminium on-site can form long-term rainwash water.These waste water major pollutants are all
It is influenced by aluminum electrolysis raw material, major pollutants are fluorides, followed by colourity, suspended matter, COD, dissolved solid etc..At present
Domestic electrolytic aluminium factory is generally all formulated with sewage disposal system, generally handles water scale is smaller, and configuration is scattered, and occupation of land is larger,
Counter investment is larger, and system operation adjusts operation using manual operation, and also there are arrange not realizing following for waste water outside effluent part
The traditional technologies problems such as ring recycling.
Existing fluorine-containing wastewater treatment method and advantage and disadvantage see the table below：
The content of the invention
Present invention aims to solve the deficiencies of the prior art, and provides a kind of a kind of processing water is larger, investment is small, processing
Effect is good, can realize the fluorine-containing wastewater treatment method of zero-emission.
The purpose of the present invention is achieved through the following technical solutions.
A kind of processing method of aluminium electroloysis fluoride waste, method and step are as follows：
(1) fluoride waste of full plant area is all pooled to regulating reservoir；
(2) fluoride waste in regulating reservoir is pumped to integral water purifier and is filtered purification, the supernatant after filtering
Intermediate pool is flowed directly into, underflow is discharged into sludge-tank after precipitation；The integral water purifier is by quartz filter, activated carbon mistake
Filter sequentially connects composition, forms two-stage filtration system；
(3) calcium hydroxide and polyacrylamide are put into sludge-tank, removes the fluoride in sludge, it will be in sludge-tank
Fluorine-containing sludge supernatant is pumped to spare pond, and fluorine-containing sludge underflow is evacuated to sludge dewatering system, through inclined-tube sedimentation tank, sludge
The dewatered sludge of dewaterer is pressed into mud cake, and dewatered filtrate is equally pumped to spare pond；
(4) fluoride waste in spare pond converges in regulating reservoir or is sent directly into integral water purifier and is filtered again
Purification, supernatant flow directly into intermediate pool, and underflow is discharged into sludge-tank after precipitation；
(5) supernatant of intermediate pool is pumped to refined filtration filter, ultrafiltration system, counter-infiltration system successively and carries out fluorine-containing give up
The separation of water, the fresh water isolated enter clear water reserviors, and direct reuse makees each recirculated cooling water during Aluminum Electrolysis Production, separation
The concentrated water gone out is sent after being evacuated to concentrated water pond to MVR crystallizing evaporators, can also directly send MVR crystallizing evaporators.
The present invention is provided with medicine system before refined filtration filter, and the water in intermediate pool is re-fed into refined filtration after agent-feeding treatment
Filter.
Compared with prior art, the circulation utilization method processing fluoride waste energy of aluminium electroloysis fluoride waste provided by the invention
Power is strong, and treating capacity is big, high treating effect and equipment investment are small.The fresh water discharge standard that treatment process finally obtains is higher than national phase
The regulation of pass standard, can direct reuse make each recirculated cooling water during Aluminum Electrolysis Production, sludge can be pressed into mud cake conduct
Cement plant or the raw materials for production of steel plant, fully achieve recycling for fluoride waste, and have reached zero-emission.It utilizes simultaneously
Initial rainwater, accident emergency water and the rainwash water of high fluorine content carry out waste lining defluorinate, and it is harmless to realize aluminium electroloysis slot liner
Changing while Treatment and recovery utilizes realizes the improvement of aluminium electroloysis fluoride waste and the recycling of fluorine.
Description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Specific embodiment
As shown in Figure 1, the processing method of aluminium electroloysis fluoride waste, method and step are as follows：
(1) fluoride waste (including initial rainwater, accident emergency water and rainwash water) of full plant area is all pooled to
Regulating reservoir；
(2) fluoride waste in regulating reservoir is pumped to integral water purifier and is filtered purification, the supernatant after filtering
Intermediate pool is flowed directly into, underflow is discharged into sludge-tank after precipitation；The integral water purifier is by quartz filter, activated carbon mistake
Filter sequentially connects composition, forms two-stage filtration system；
(3) calcium hydroxide and polyacrylamide are put into sludge-tank, removes the harmful components such as fluoride in sludge, it will
Fluorine-containing sludge supernatant in sludge-tank is pumped to spare pond, and fluorine-containing sludge underflow is evacuated to sludge dewatering system, through inclined tube
The dewatered sludge of sedimentation basin, sludge dewatering equipment can be pressed into mud cake and be transported to cement plant or steel plant as raw materials for production, filtrate
Equally it is pumped to spare pond；
(4) fluoride waste in spare pond converges in regulating reservoir or is sent directly into integral water purifier and is filtered again
Purification, supernatant flow directly into intermediate pool, and underflow is discharged into sludge-tank after precipitation；
(5) supernatant of intermediate pool is pumped to refined filtration filter, ultrafiltration system, counter-infiltration system successively and carries out fluorine-containing give up
The separation of water, the fresh water isolated enter clear water reserviors, and direct reuse makees each recirculated cooling water during Aluminum Electrolysis Production, separation
The concentrated water gone out is sent after being evacuated to concentrated water pond to MVR crystallizing evaporators, can also directly send MVR crystallizing evaporators.
The present invention is provided with medicine system before refined filtration filter, and the water in intermediate pool is re-fed into refined filtration after agent-feeding treatment
Filter.
The spare pond of the present invention is the preparation cistern occurred as process accident, can also be used as rainwater collection pool.This
The used equipment of invention for example quartz filter, active carbon filter, refined filtration filter, ultrafiltration system, counter-infiltration system,
Existing skill can be used in inclined-tube sedimentation tank, sludge dewatering equipment in MVR crystallizing evaporators, medicine system, sludge dewatering system etc.
Art equipment, can purchased in market or customization.
Claims (2)
1. a kind of processing method of aluminium electroloysis fluoride waste, which is characterized in that method and step is as follows：
(1) fluoride waste of full plant area is all pooled to regulating reservoir；
(2) fluoride waste in regulating reservoir is pumped to integral water purifier and is filtered purification, the supernatant after filtering is direct
Intermediate pool is flowed into, underflow is discharged into sludge-tank after precipitation；The integral water purifier is by quartz filter, active carbon filter
Sequentially connection composition forms two-stage filtration system；
(3) calcium hydroxide and polyacrylamide are put into sludge-tank, removes the fluoride in sludge, it will be fluorine-containing in sludge-tank
Sludge supernatant is pumped to spare pond, and fluorine-containing sludge underflow is evacuated to sludge dewatering system, through inclined-tube sedimentation tank, sludge dewatering
The dewatered sludge of machine is pressed into mud cake, and dewatered filtrate is equally pumped to spare pond；
(4) fluoride waste in spare pond converges in regulating reservoir or is sent directly into integral water purifier and is filtered again only
Change, supernatant flows directly into intermediate pool, and underflow is discharged into sludge-tank after precipitation；
(5) supernatant of intermediate pool is pumped to refined filtration filter, ultrafiltration system, counter-infiltration system successively and carries out fluoride waste
Separation, the fresh water isolated enter clear water reserviors, and direct reuse is made each recirculated cooling water during Aluminum Electrolysis Production, isolated
Concentrated water is sent to MVR crystallizing evaporators after being evacuated to concentrated water pond or directly send MVR crystallizing evaporators.
2. the processing method of a kind of aluminium electroloysis fluoride waste according to claim 1, which is characterized in that in refined filtration filter
Before be provided with medicine system, the water in intermediate pool is re-fed into refined filtration filter after agent-feeding treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393917.2A CN108046501A (en) | 2017-12-21 | 2017-12-21 | A kind of processing method of aluminium electroloysis fluoride waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393917.2A CN108046501A (en) | 2017-12-21 | 2017-12-21 | A kind of processing method of aluminium electroloysis fluoride waste |
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| Publication Number | Publication Date |
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| CN108046501A true CN108046501A (en) | 2018-05-18 |
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| CN201711393917.2A Pending CN108046501A (en) | 2017-12-21 | 2017-12-21 | A kind of processing method of aluminium electroloysis fluoride waste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574324A (en) * | 2019-01-30 | 2019-04-05 | 四川金象赛瑞化工股份有限公司 | A kind of processing method of industrial water conditioning system sewerage |
| CN112358107A (en) * | 2020-11-06 | 2021-02-12 | 云南云铝润鑫铝业有限公司 | Method for recycling cooling water in aluminum alloy production |
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| EP2236463A2 (en) * | 2009-04-02 | 2010-10-06 | Henkel AG & Co. KGaA | Reverse osmosis method for preparing rinsing water containing polyvalent metal cations |
| CN102126806A (en) * | 2011-01-17 | 2011-07-20 | 无锡德宝水务投资有限公司 | Method for completely recycling wastewater containing fluorine and ammonia nitrogen in electronic industry |
| CN202038939U (en) * | 2011-05-19 | 2011-11-16 | 山东昭和新材料科技股份有限公司 | Fluorine-contained wastewater treatment system |
| CN102730871A (en) * | 2011-04-01 | 2012-10-17 | 深圳恒通源水处理科技有限公司 | Recycling process of fluorine-containing wastewater |
| CN103936218A (en) * | 2014-04-21 | 2014-07-23 | 江苏省环境科学研究院 | Method for realizing approximate zero discharge of high-fluorine-content and high-nitrogen-content battery production waste water in photovoltaic industry |
| CN107473483A (en) * | 2017-09-20 | 2017-12-15 | 四川中丹合创环保科技有限公司 | A kind of method of electroplating wastewater zero processing |
-
2017
- 2017-12-21 CN CN201711393917.2A patent/CN108046501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2236463A2 (en) * | 2009-04-02 | 2010-10-06 | Henkel AG & Co. KGaA | Reverse osmosis method for preparing rinsing water containing polyvalent metal cations |
| CN102126806A (en) * | 2011-01-17 | 2011-07-20 | 无锡德宝水务投资有限公司 | Method for completely recycling wastewater containing fluorine and ammonia nitrogen in electronic industry |
| CN102730871A (en) * | 2011-04-01 | 2012-10-17 | 深圳恒通源水处理科技有限公司 | Recycling process of fluorine-containing wastewater |
| CN202038939U (en) * | 2011-05-19 | 2011-11-16 | 山东昭和新材料科技股份有限公司 | Fluorine-contained wastewater treatment system |
| CN103936218A (en) * | 2014-04-21 | 2014-07-23 | 江苏省环境科学研究院 | Method for realizing approximate zero discharge of high-fluorine-content and high-nitrogen-content battery production waste water in photovoltaic industry |
| CN107473483A (en) * | 2017-09-20 | 2017-12-15 | 四川中丹合创环保科技有限公司 | A kind of method of electroplating wastewater zero processing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574324A (en) * | 2019-01-30 | 2019-04-05 | 四川金象赛瑞化工股份有限公司 | A kind of processing method of industrial water conditioning system sewerage |
| CN109574324B (en) * | 2019-01-30 | 2021-10-22 | 四川金象赛瑞化工股份有限公司 | Treatment method of sewage discharged by industrial water treatment system |
| CN112358107A (en) * | 2020-11-06 | 2021-02-12 | 云南云铝润鑫铝业有限公司 | Method for recycling cooling water in aluminum alloy production |
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Application publication date: 20180518 |