CN110127801A - A method of aluminum alloy chemical milling waste water is pre-processed by modified activated carbon particle - Google Patents
A method of aluminum alloy chemical milling waste water is pre-processed by modified activated carbon particle Download PDFInfo
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- CN110127801A CN110127801A CN201910408322.2A CN201910408322A CN110127801A CN 110127801 A CN110127801 A CN 110127801A CN 201910408322 A CN201910408322 A CN 201910408322A CN 110127801 A CN110127801 A CN 110127801A
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- waste water
- activated carbon
- aluminum alloy
- chemical milling
- alloy chemical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/70—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
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention belongs to field of industrial waste water treatment, are related to a kind of method for pre-processing aluminum alloy chemical milling waste water by modified activated carbon particle.This method includes the modification of activated carbon particles and carries out cell reaction processing aluminum alloy chemical milling waste water by modified activated carbon particle and iron filings, specific steps are as follows: take granular cocoanut active charcoal to be placed in acetone soln, impregnate for 24 hours afterwards with distilled water cleaning active charcoal particle repeatedly；By treated, activated carbon particles are placed in phosphoric acid dilute solution, 6h are heated in 60 DEG C of water bath with thermostatic control, cleaning, drying after taking-up is sealed；The pH value of aluminum alloy chemical milling waste water is adjusted to 3-4 with dilute sulfuric acid；Modified activated carbon particles and iron filings are added into waste water；It is sufficiently stirred 1 hour, stands 1-3 hours.The effects of present invention process is simple, integrates redox, flocculation adsorption, catalysis oxidation, complexing, electro-deposition and co-precipitation, reduces organic concentration, COD value of waste water and wastewater toxicity.
Description
Technical field
The invention belongs to field of industrial waste water treatment, are related to a kind of by modified activated carbon particle pretreatment aluminum alloy chemical milling
The method of waste water.
Background technique
Milling technique is important, indispensable aluminum alloy surface treatment process in aerospace industry.The technique is
It needs the position processed to be exposed in chemical mediator material to corrode, to obtain the shape and size of part needs.Aluminium
A large amount of milling waste water can be produced after alloy milling processing, which is strong alkali solution, and main component has NaOH, NaAl02
And additive Na2S, triethanolamine etc., belong to a kind of high concentration hard-degraded organic waste water, such as processing will produce environment not in time
Raw huge harm.
Currently, the main processing technique route for high concentration hard-degraded organic waste water is: first to high-concentration hardly-degradable
Organic wastewater is effectively pre-processed, to remove part persistent organic pollutants or change the change of refractory organic
Structure is learned, bio-toxicity and COD value are reduced, to expand the selectable range of subsequent treatment process.
Therefore, complicated component this for aluminum alloy chemical milling waste water, and high high concentration difficulty drops with basicity greatly for COD variation
Organic wastewater is solved, COD numerical value can be substantially reduced using effective preprocess method, subsequent processing difficulty is reduced, expand subsequent place
Science and engineering skill range of choice, thorough mineralizing and degrading pollutant improve treatment effeciency, guarantee effluent quality.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of by modified activated carbon particle pre-treating aluminium alloying
The method for milling waste water, in this way, can enable aluminum alloy to the COD concentration of milling waste water can be greatly reduced, after expanding the waste water
The range of choice of continuous treatment process.
In order to achieve the above object, the technical solution of the present invention is as follows:
A method of aluminum alloy chemical milling waste water, the modification including activated carbon particles are pre-processed by modified activated carbon particle
It handles and carries out cell reaction by modified activated carbon particle and iron filings and handle aluminum alloy chemical milling waste water, the specific steps are as follows:
The first step, the modification of activated carbon particles
Partial size is taken to be placed in 10% acetone soln for the granular cocoanut active charcoal of 20-40 purpose, distilled water is used in immersion afterwards for 24 hours
Cleaning active charcoal particle repeatedly；By treated activated carbon particles are placed in 10% phosphoric acid dilute solution, in 60 DEG C of thermostatted water
6h is heated in bath, cleaning, drying after taking-up is sealed；
Second step, electrolysis processing aluminum alloy chemical milling waste water
The pH value of aluminum alloy chemical milling waste water is adjusted to 3-4 with 10% dilute sulfuric acid；Add by iron carbon mass ratio 1:1 into waste water
Enter the iron filings of modified activated carbon particles and 20-40 mesh, the mass ratio of activated carbon particles and waste water is 1:10；The aluminium closes
Aurification mills the waste water that the initial concentration of waste water is 2000mg/L~6000mg/L；
Third step is sufficiently stirred 1 hour, is discharged after standing 1-3 hours.
The invention has the benefit that simple process, collects redox, flocculation adsorption, catalysis oxidation, complexing, electro-deposition
And the effects of co-precipitation, is in one.As a kind of preconditioning technique, organic concentration can not only can be greatly reduced, reduce useless
Water COD value, while can also remove or reduce wastewater toxicity.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
1) it takes partial size to be placed in 10% acetone soln for the granular cocoanut active charcoal of 20-40 purpose, impregnates for 24 hours afterwards with distillation
Water cleaning active charcoal particle repeatedly；By treated activated carbon particles are placed in 10% phosphoric acid dilute solution, in 60 DEG C of constant temperature
6h is heated in water-bath, cleaning, drying after taking-up is sealed；
2) taking initial concentration is the waste water of 2000mg/L, and adjusting pH value with 10% dilute sulfuric acid is 3；By iron carbon mass ratio 1:1
It is added the iron filings of modified activated carbon particles and 20-40 mesh into waste water, the mass ratio of activated carbon particles and waste water is 1:10；
3) it is sufficiently stirred 1 hour, after standing 3 hours, measures supernatant C OD concentration.COD removal rate is 65%.
Embodiment 2
1) it takes partial size to be placed in 10% acetone soln for the granular cocoanut active charcoal of 20-40 purpose, impregnates for 24 hours afterwards with distillation
Water cleaning active charcoal particle repeatedly；By treated activated carbon particles are placed in 10% phosphoric acid dilute solution, in 60 DEG C of constant temperature
6h is heated in water-bath, cleaning, drying after taking-up is sealed；
2) taking initial concentration is the waste water of 3300mg/L, and adjusting pH value with 10% dilute sulfuric acid is 3.5；By iron carbon mass ratio 1:
1 is added the iron filings of modified activated carbon particles and 20-40 mesh into waste water, and the mass ratio of activated carbon particles and waste water is 1:
10；
3) it is sufficiently stirred 1 hour, after standing 1 hour, measures supernatant C OD concentration.COD removal rate is 67%.
Embodiment 3
1) it takes partial size to be placed in 10% acetone soln for the granular cocoanut active charcoal of 20-40 purpose, impregnates for 24 hours afterwards with distillation
Water cleaning active charcoal particle repeatedly；By treated activated carbon particles are placed in 10% phosphoric acid dilute solution, in 60 DEG C of constant temperature
6h is heated in water-bath, cleaning, drying after taking-up is sealed；
2) taking initial concentration is the waste water of 6000mg/L, and adjusting pH value with 10% dilute sulfuric acid is 4；By iron carbon mass ratio 1:1
It is added the iron filings of modified activated carbon particles and 20-40 mesh into waste water, the mass ratio of activated carbon particles and waste water is 1:10；
3) it is sufficiently stirred 1 hour, after standing 1 hour, measures supernatant C OD concentration.COD removal rate is 61%.
Claims (1)
1. a kind of method for pre-processing aluminum alloy chemical milling waste water by modified activated carbon particle, which is characterized in that described passes through
The method of modified activated carbon particle pretreatment aluminum alloy chemical milling waste water includes the modification of activated carbon particles and passes through modification
Activated carbon particles and iron filings carry out cell reaction and handle aluminum alloy chemical milling waste water, the specific steps are as follows:
The first step, the modification of activated carbon particles
Taking partial size is that the granular cocoanut active charcoal of 20-40 purpose is placed in 10% acetone soln, impregnate for 24 hours afterwards with distilled water repeatedly
Cleaning active charcoal particle；By treated activated carbon particles are placed in 10% phosphoric acid dilute solution, in 60 DEG C of water bath with thermostatic control
6h is heated, cleaning, drying after taking-up is sealed；
Second step, electrolysis processing aluminum alloy chemical milling waste water
The pH value of aluminum alloy chemical milling waste water is adjusted to 3-4 with 10% dilute sulfuric acid；It is added and changes into waste water by iron carbon mass ratio 1:1
Property after activated carbon particles and 20-40 mesh iron filings, the mass ratio of activated carbon particles and aluminum alloy chemical milling waste water is 1:10；It is described
Aluminum alloy chemical milling waste water initial concentration be 2000mg/L~6000mg/L waste water；
Third step is sufficiently stirred 1 hour, is discharged after standing 1-3 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910408322.2A CN110127801A (en) | 2019-05-16 | 2019-05-16 | A method of aluminum alloy chemical milling waste water is pre-processed by modified activated carbon particle |
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| CN201910408322.2A CN110127801A (en) | 2019-05-16 | 2019-05-16 | A method of aluminum alloy chemical milling waste water is pre-processed by modified activated carbon particle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692950A (en) * | 2014-11-28 | 2016-06-22 | 中国科学院金属研究所 | Treatment method for titanium-aluminum intermetallic compound chemical milling waste liquid |
| US9533281B2 (en) * | 2013-03-14 | 2017-01-03 | University Of North Texas | Porositization process of carbon or carbonaceous materials |
| CN107758789A (en) * | 2017-11-23 | 2018-03-06 | 浙江海洋大学 | The preparation and its application of a kind of printing and dyeing wastewater treatment agent |
| CN108726773A (en) * | 2017-10-23 | 2018-11-02 | 科迈化工股份有限公司 | A kind of chemical wastewater treatment technique |
| CN109734220A (en) * | 2019-02-20 | 2019-05-10 | 河北瑞鑫化工有限公司 | A kind of technique based on micro-electrolysis treatment alkalescent light green waste water |
-
2019
- 2019-05-16 CN CN201910408322.2A patent/CN110127801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9533281B2 (en) * | 2013-03-14 | 2017-01-03 | University Of North Texas | Porositization process of carbon or carbonaceous materials |
| CN105692950A (en) * | 2014-11-28 | 2016-06-22 | 中国科学院金属研究所 | Treatment method for titanium-aluminum intermetallic compound chemical milling waste liquid |
| CN108726773A (en) * | 2017-10-23 | 2018-11-02 | 科迈化工股份有限公司 | A kind of chemical wastewater treatment technique |
| CN107758789A (en) * | 2017-11-23 | 2018-03-06 | 浙江海洋大学 | The preparation and its application of a kind of printing and dyeing wastewater treatment agent |
| CN109734220A (en) * | 2019-02-20 | 2019-05-10 | 河北瑞鑫化工有限公司 | A kind of technique based on micro-electrolysis treatment alkalescent light green waste water |
Non-Patent Citations (1)
| Title |
|---|
| 廖莹莹: "改性活性炭对水溶液中六价铬离子吸附效果的测定与分析", 《湖北理工学院学报》 * |
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Application publication date: 20190816 |