CN109516634A - A kind of processing method of intermetallic composite coating fluoride waste - Google Patents
A kind of processing method of intermetallic composite coating fluoride waste Download PDFInfo
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- CN109516634A CN109516634A CN201710830412.1A CN201710830412A CN109516634A CN 109516634 A CN109516634 A CN 109516634A CN 201710830412 A CN201710830412 A CN 201710830412A CN 109516634 A CN109516634 A CN 109516634A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological 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
- 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
- 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
- C02F1/52—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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a kind of processing methods of intermetallic composite coating fluoride waste, comprising the following steps: the processing of high fluorine waste water；The processing of low fluorine waste water；By other production wastewater collections, alkali, flocculant is added, is precipitated after reaction, mud-water separation, water outlet enters purification tank for liquid waste；It sinks and waste water that fluorine reacts and is uniformly mixed in purification tank for liquid waste by other waste water that step 3 is slagged tap by step 2, handled, then precipitated, mud-water separation by AO method sewage treatment process；Step 4 treated waste water is subjected to advanced treating, is finally reached discharge standard；Treatment of Sludge, the sludge that above-mentioned several steps are obtained carry out classification processing.The stably reaching standard discharge of production of polysilicon waste water can be guaranteed using processing method of the invention and recycled, the waste residue after wastewater treatment belongs to Ordinary solid waste, can direct landfill stabilization, secondary pollution will not be caused to environment.
Description
Technical field
The present invention relates to metal working technical area more particularly to a kind of processing methods of intermetallic composite coating fluoride waste.
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.
During some intermetallic composite coatings, fluoride waste can be generated, therefore in processing, needs to consider this point, often
Wastewater treatment method is just not suitable for.
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 intermetallic composite coating fluoride waste
Processing 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 fluoride waste, comprising the following steps:
Step 1, the processing of high fluorine waste water: after high fluorine wastewater collection enter high fluorine purification tank for liquid waste, be mixed uniformly, then plus
Enter calcium hydroxide, calcium chloride and flocculant, precipitated after reaction, mud-water separation, low fluorine purification tank for liquid waste of entering will be discharged,
Sludge stays in sedimentation basin；
Step 2, by low fluorine wastewater collection, and in the waste water mixing that step 1 obtains, hydrogen then the processing of low fluorine waste water: is added
Calcium oxide, calcium chloride and flocculant are precipitated, mud-water separation after reaction, and water outlet enters purification tank for liquid waste；
Step 3, by other production wastewater collections, alkali, flocculant is added, is precipitated after reaction, mud-water separation, water outlet enters useless
Water treating pond；
Step 4, waste water that fluorine reacts and the other waste water slagged tap by step 3 are sunk in purification tank for liquid waste by step 2
Uniformly mixing, is handled by AO method sewage treatment process, is then precipitated, mud-water separation；
Step 5, step 4 treated waste water is subjected to advanced treating, is finally reached discharge standard；
Step 6, Treatment of Sludge, the sludge that above-mentioned several steps are obtained carry out classification processing.
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 5, advanced treating includes coagulating sedimentation, electrolysis, Aerobic Process for Treatment.
In the step 6, sludge is divided into materialized mud and biochemical sludge, is respectively processed, treatment process are as follows: sludge warp
It after concentration, is dehydrated by filter press, dewatered supernatant is sent into the processing step of low fluorine waste water and is reprocessed, dewatered
Sludge is put into cinder field, regular outward transport processing.
The utility model has the advantages that can guarantee the discharge of intermetallic composite coating fluoride waste stably reaching standard using processing method of the invention and return
Receive and 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 inorganic acid alkali wastewater treatment.
Specific embodiment
The present invention will be further described With reference to embodiment.
A kind of processing method of intermetallic composite coating fluoride waste, comprising the following steps:
Step 1, the processing of high fluorine waste water: after high fluorine wastewater collection enter high fluorine purification tank for liquid waste, be mixed uniformly, then plus
Enter calcium hydroxide, calcium chloride and flocculant, precipitated after reaction, mud-water separation, low fluorine purification tank for liquid waste of entering will be discharged,
Sludge stays in sedimentation basin；
Step 2, by low fluorine wastewater collection, and in the waste water mixing that step 1 obtains, hydrogen then the processing of low fluorine waste water: is added
Calcium oxide, calcium chloride and flocculant are precipitated, mud-water separation after reaction, and water outlet enters purification tank for liquid waste；
Step 3, by other production wastewater collections, alkali, flocculant is added, is precipitated after reaction, mud-water separation, water outlet enters useless
Water treating pond；
Step 4, waste water that fluorine reacts and the other waste water slagged tap by step 3 are sunk in purification tank for liquid waste by step 2
Uniformly mixing, is handled by AO method sewage treatment process, is then precipitated, mud-water separation；
Step 5, step 4 treated waste water is subjected to advanced treating, is finally reached discharge standard；
Step 6, Treatment of Sludge, the sludge that above-mentioned several steps are obtained carry out classification processing.
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 5, advanced treating includes coagulating sedimentation, electrolysis, Aerobic Process for Treatment.
In the step 6, sludge is divided into materialized mud and biochemical sludge, is respectively processed, treatment process are as follows: sludge warp
It after concentration, is dehydrated by filter press, dewatered supernatant is sent into the processing step of low fluorine waste water and is reprocessed, dewatered
Sludge is put into cinder field, regular outward transport processing.
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 (6)
1. a kind of processing method of intermetallic composite coating fluoride waste, which comprises the following steps:
Step 1, the processing of high fluorine waste water: after high fluorine wastewater collection enter high fluorine purification tank for liquid waste, be mixed uniformly, then plus
Enter calcium hydroxide, calcium chloride and flocculant, precipitated after reaction, mud-water separation, low fluorine purification tank for liquid waste of entering will be discharged,
Sludge stays in sedimentation basin；
Step 2, by low fluorine wastewater collection, and in the waste water mixing that step 1 obtains, hydrogen then the processing of low fluorine waste water: is added
Calcium oxide, calcium chloride and flocculant are precipitated, mud-water separation after reaction, and water outlet enters purification tank for liquid waste；
Step 3, by other production wastewater collections, alkali, flocculant is added, is precipitated after reaction, mud-water separation, water outlet enters useless
Water treating pond；
Step 4, waste water that fluorine reacts and the other waste water slagged tap by step 3 are sunk in purification tank for liquid waste by step 2
Uniformly mixing, is handled by AO method sewage treatment process, is then precipitated, mud-water separation；
Step 5, step 4 treated waste water is subjected to advanced treating, is finally reached discharge standard；
Step 6, Treatment of Sludge, the sludge that above-mentioned several steps are obtained carry out classification processing.
2. the processing method of intermetallic composite coating fluoride waste as described in claim 1, which is characterized in that the flocculant is polymerization
One or both of liquor alumini chloridi, polyacrylamide.
3. the processing method of intermetallic composite coating fluoride waste as claimed in claim 2, which is characterized in that the aluminium polychloride is molten
In liquid, Al2O3Mass content > 30%, basicity > 80%.
4. the processing method of intermetallic composite coating fluoride waste as claimed in claim 2, which is characterized in that the flocculant polypropylene
The mass concentration of amide is 6-8 ‰.
5. the processing method of intermetallic composite coating fluoride waste as described in claim 1, which is characterized in that in the step 5, depth
Processing includes coagulating sedimentation, electrolysis, Aerobic Process for Treatment.
6. the processing method of intermetallic composite coating fluoride waste as described in claim 1, which is characterized in that in the step 6, sludge
It is divided into materialized mud and biochemical sludge, is respectively processed, treatment process are as follows: after sludge is concentrated, be dehydrated, be dehydrated by filter press
Supernatant afterwards is sent into the processing step of low fluorine waste water and is reprocessed, and dewatered sludge is put into cinder field, at regular outward transport
Reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710830412.1A CN109516634A (en) | 2017-09-15 | 2017-09-15 | A kind of processing method of intermetallic composite coating fluoride waste |
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| CN201710830412.1A CN109516634A (en) | 2017-09-15 | 2017-09-15 | A kind of processing method of intermetallic composite coating fluoride waste |
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| CN109516634A true CN109516634A (en) | 2019-03-26 |
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| CN201710830412.1A Withdrawn CN109516634A (en) | 2017-09-15 | 2017-09-15 | A kind of processing method of intermetallic composite coating fluoride waste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921898A (en) * | 2019-12-04 | 2020-03-27 | 山东潍坊润丰化工股份有限公司 | Wastewater treatment method for fluorine-containing aniline compound |
Citations (2)
| 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 |
| CN103466885A (en) * | 2013-09-12 | 2013-12-25 | 安徽省绿巨人环境技术有限公司 | Process for treating wastewater generated in solar silicon wafer production process |
-
2017
- 2017-09-15 CN CN201710830412.1A patent/CN109516634A/en not_active Withdrawn
Patent Citations (2)
| 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 |
| CN103466885A (en) * | 2013-09-12 | 2013-12-25 | 安徽省绿巨人环境技术有限公司 | Process for treating wastewater generated in solar silicon wafer production process |
Non-Patent Citations (1)
| Title |
|---|
| 姜静: "《多晶硅生产企业废水处理工程设计与应用》", 《多晶硅生产企业废水处理工程设计与应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921898A (en) * | 2019-12-04 | 2020-03-27 | 山东潍坊润丰化工股份有限公司 | Wastewater treatment method for fluorine-containing aniline compound |
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Application publication date: 20190326 |
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