CN109502798A - A kind of processing method of intermetallic composite coating waste water - Google Patents
A kind of processing method of intermetallic composite coating waste water Download PDFInfo
- Publication number
- CN109502798A CN109502798A CN201710830395.1A CN201710830395A CN109502798A CN 109502798 A CN109502798 A CN 109502798A CN 201710830395 A CN201710830395 A CN 201710830395A CN 109502798 A CN109502798 A CN 109502798A
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- CN
- China
- Prior art keywords
- waste water
- composite coating
- intermetallic composite
- processing method
- flocculant
- 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.)
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Classifications
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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
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- 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
-
- 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
-
- 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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- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of processing methods of intermetallic composite coating waste water, comprising the following steps: step 1, carries out heavy metal precipitation processing to the waste water of intermetallic composite coating first, precipitating is collected；Step 2, treatment fluid is prepared, the treatment fluid includes milk of lime, flocculant；Step 3, the milk of lime that step 1 is prepared is mixed with production of polysilicon waste water, is reacted, detected its ph after reaction and reach 7-8, then carried out in next step, if above-mentioned standard is not achieved in ph, continue to add treatment fluid, the reaction was continued；Step 4, flocculant step 2 configured is added through step 2 treated waste water, makes in waste water colloidal solid de- stable yields is raw simultaneously to agglomerate；Step 5, flocculation sedimentation will be carried out through step 4 treated waste water, and will obtain sludge；Step 6, precipitating step 1 obtained, the sludge discharge that step 5 obtains, is transported to cinder field, periodically outward transport disposition respectively.Method of the invention can guarantee the stably reaching standard discharge of metal processing waste water and recycle.
Description
Technical field
The present invention relates to metal working technical area more particularly to a kind of processing methods of intermetallic composite coating waste water.
Background technique
The waste water of metal-working industry contains high concentration heavy metal, endangers environment and causes prestige to public health and biology
The side of body.Therefore, waste water needs to pre-process before discharging.
Conventional process mode includes chemical method, heavy metal precipitation, flocculation, sedimentation and discharge, these are all to expend very much
Time.The precipitating of heavy metal reduces the metalliferous concentration of institute.Its key is the solubility of precipitated metal compounds.
That is, if metal is capable of forming a kind of insoluble compound, this compound can by purification and
Filtering removal.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of processing side of intermetallic composite coating waste water
Method.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of processing method of intermetallic composite coating waste water, comprising the following steps:
Step 1, heavy metal precipitation processing is carried out to the waste water of intermetallic composite coating first, precipitating is collected；
Step 2, treatment fluid is prepared, the treatment fluid includes milk of lime, flocculant；
Step 3, the milk of lime that step 1 is prepared is mixed with production of polysilicon waste water, is reacted, detect its ph after reaction
Reach 7-8, then carry out in next step, if above-mentioned standard is not achieved in ph, continues to add treatment fluid, the reaction was continued；
Step 4, flocculant step 2 configured is added through step 2 treated waste water, keeps colloidal solid in waste water de- simultaneously surely
Generate cohesion；
Step 5, flocculation sedimentation will be carried out through step 4 treated waste water, and will obtain sludge；
Step 6, precipitating step 1 obtained, the sludge discharge that step 5 obtains, is transported to cinder field, periodically outward transport disposition respectively.
The step 1 comprises the concrete steps that: hydroxide or sulfide solution being added in the waste water of intermetallic composite coating, stirs
After mixing reaction, after staticly settling, bottom precipitation is collected.
In the step 1, pH value is controlled in 8.5-9.5.
The flocculant is one or both of polymeric aluminum chlorides solution, polyacrylamide.
In the polymeric aluminum chlorides solution, Al2O3Mass content > 30%, basicity > 80%.
The mass concentration of the flocculant polyacrylamide is 6-8 ‰.
In the step 2, in milk of lime, Ca (OH)2Mass concentration be 25-30%.
In the step 4, the additive amount of flocculant is to add 10-20kg in waste water per ton.
In the step 5, made by the method for gravitational settling, centrifuge separation, dynamic filtration or sludge condensation through step 4 place
Waste water after reason carries out flocculation sedimentation.
The utility model has the advantages that can guarantee that the stably reaching standard of metal processing waste water is discharged and recycled using processing method of the invention
Utilize, the waste residue after wastewater treatment belongs to Ordinary solid waste, can direct landfill stabilization, secondary dirt will not be caused to environment
Dye.With treatment effeciency, high, treatment effect is stablized, and has promotional value in intermetallic composite coating wastewater treatment.
Specific embodiment
The present invention will be further described With reference to embodiment.
A kind of processing method of intermetallic composite coating waste water, comprising the following steps:
Step 1, heavy metal precipitation processing is carried out to the waste water of intermetallic composite coating first, precipitating is collected；It comprises the concrete steps that: in metal
Hydroxide or sulfide solution are added in the waste water of processing, after being stirred to react, after staticly settling, bottom precipitation is collected；
For convenient for heavy metal precipitation, when processing, controls pH value in 8.5-9.5.
Step 2, treatment fluid is prepared, the treatment fluid includes milk of lime, flocculant；Flocculant be polymeric aluminum chlorides solution,
One or both of polyacrylamide；In polymeric aluminum chlorides solution, Al2O3Mass content > 30%, basicity > 80%；Flocculant
The mass concentration of polyacrylamide is 6-8 ‰；In milk of lime, Ca (OH)2Mass concentration be 25-30%.
Step 3, the milk of lime that step 1 is prepared is mixed with production of polysilicon waste water, is reacted, is detected after reaction
Its ph reaches 7-8, then carries out in next step, if above-mentioned standard is not achieved in ph, continues to add treatment fluid, the reaction was continued；
Step 4, flocculant step 1 configured is added through step 2 treated waste water, keeps colloidal solid in waste water de- simultaneously surely
Generate cohesion；The additive amount of flocculant is to add 10-20kg in waste water per ton.
Step 5, make that treated through step 3 by the method for gravitational settling, centrifuge separation, dynamic filtration or sludge condensation
Waste water, which will carry out flocculation sedimentation, to carry out flocculation sedimentation through step 3 treated waste water, obtain sludge；
Step 6, sludge step 4 obtained is discharged, and is transported to cinder field, periodically outward transport disposition.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of processing method of intermetallic composite coating waste water, which comprises the following steps:
Step 1, heavy metal precipitation processing is carried out to the waste water of intermetallic composite coating first, precipitating is collected；
Step 2, treatment fluid is prepared, the treatment fluid includes milk of lime, flocculant；
Step 3, the milk of lime that step 1 is prepared is mixed with production of polysilicon waste water, is reacted, detect its ph after reaction
Reach 7-8, then carry out in next step, if above-mentioned standard is not achieved in ph, continues to add treatment fluid, the reaction was continued；
Step 4, flocculant step 2 configured is added through step 2 treated waste water, keeps colloidal solid in waste water de- simultaneously surely
Generate cohesion；
Step 5, flocculation sedimentation will be carried out through step 4 treated waste water, and will obtain sludge；
Step 6, precipitating step 1 obtained, the sludge discharge that step 5 obtains, is transported to cinder field, periodically outward transport disposition respectively.
2. the processing method of intermetallic composite coating waste water according to claim 1, which is characterized in that the specific step of the step 1
Suddenly it is: hydroxide or sulfide solution is added in the waste water of intermetallic composite coating, after being stirred to react, after staticly settling, the bottom of by
Portion's precipitating is collected.
3. the processing method of intermetallic composite coating waste water according to claim 1, which is characterized in that in the step 1, control pH
Value is in 8.5-9.5.
4. the processing method of intermetallic composite coating waste water according to claim 1, which is characterized in that the flocculant is polymerization chlorine
Change one or both of aluminum solutions, polyacrylamide.
5. the processing method of intermetallic composite coating waste water according to claim 4, which is characterized in that the polymeric aluminum chlorides solution
In, Al2O3Mass content > 30%, basicity > 80%.
6. the processing method of intermetallic composite coating waste water according to claim 4, which is characterized in that the flocculant polyacrylamide
The mass concentration of amine is 6-8 ‰.
7. the processing method of intermetallic composite coating waste water according to claim 1, which is characterized in that in the step 2, milk of lime
In, Ca (OH)2Mass concentration be 25-30%.
8. the processing method of intermetallic composite coating waste water according to claim 1, which is characterized in that in the step 4, flocculant
Additive amount be waste water per ton in add 10-20kg.
9. the processing method of intermetallic composite coating waste water according to claim 1, which is characterized in that heavy by gravity in step 5
Drop, centrifuge separation, dynamic filtration or sludge condensation method make that treated that waste water carries out flocculation sedimentation through step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830395.1A CN109502798A (en) | 2017-09-15 | 2017-09-15 | A kind of processing method of intermetallic composite coating waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830395.1A CN109502798A (en) | 2017-09-15 | 2017-09-15 | A kind of processing method of intermetallic composite coating waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109502798A true CN109502798A (en) | 2019-03-22 |
Family
ID=65744687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710830395.1A Withdrawn CN109502798A (en) | 2017-09-15 | 2017-09-15 | A kind of processing method of intermetallic composite coating waste water |
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| CN (1) | CN109502798A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234159A (en) * | 2010-04-23 | 2011-11-09 | 保定市凯斯达科技有限公司 | Fluoride removing technology for wastewater discharged from polysilicon solar photovoltaic cell productions |
| US20120145643A1 (en) * | 2006-09-19 | 2012-06-14 | Awts, Inc. | High Efficiency Water-Softening Process |
| CN102992505A (en) * | 2011-09-14 | 2013-03-27 | 郴州市金贵银业股份有限公司 | High-arsenic acidic wastewater treatment method |
-
2017
- 2017-09-15 CN CN201710830395.1A patent/CN109502798A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120145643A1 (en) * | 2006-09-19 | 2012-06-14 | Awts, Inc. | High Efficiency Water-Softening Process |
| CN102234159A (en) * | 2010-04-23 | 2011-11-09 | 保定市凯斯达科技有限公司 | Fluoride removing technology for wastewater discharged from polysilicon solar photovoltaic cell productions |
| CN102992505A (en) * | 2011-09-14 | 2013-03-27 | 郴州市金贵银业股份有限公司 | High-arsenic acidic wastewater treatment method |
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Application publication date: 20190322 |
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