CN108640335A - A kind of processing method of fluoride waste - Google Patents
A kind of processing method of fluoride waste Download PDFInfo
- Publication number
- CN108640335A CN108640335A CN201810412281.XA CN201810412281A CN108640335A CN 108640335 A CN108640335 A CN 108640335A CN 201810412281 A CN201810412281 A CN 201810412281A CN 108640335 A CN108640335 A CN 108640335A
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- Prior art keywords
- waste water
- added
- reaction
- cacl
- water
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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
- 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
- C02F1/52—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
- 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
- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to technical field of waste water processing more particularly to a kind of processing method of fluoride waste, fluorine-containing waste water is first passed through the filtering of grating panel first, is then added to and adjusts in tank by the first step；Second step puts the waste water adjusted in tank into first order reaction area, adds NaOH and CaCl2, and PH is adjusted to 12 or so, and be stirred continuously, so that waste water is come into full contact with reaction；Third walks, and adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed pre-reaction；Then 4th step puts the waste water after pre-reaction into second order reaction area, PAC is then added, and carries out coagulating；Waste water in second order reaction area is entered level-one precipitation inclined plate device by the 5th step, while PAM is added and carries out coagulating sedimentation.
Description
Technical field
The invention belongs to technical field of waste water processing more particularly to a kind of processing methods of fluoride waste.
Background technology
Sewage disposal is to make sewage reach to drain a certain water body or mistake that the water quality requirement that reuses purifies it
Journey.It is each that sewage disposal is widely used in building, agricultural, traffic, the energy, petrochemical industry, environmental protection, urban landscape, medical treatment, food and drink etc.
The daily life of common people is also come into field more and more.
Classify by sewage source, sewage disposal is generally divided into production sewage treatment and sanitary sewage disposal.Production waste packet
Trade effluent, rural sewage and medical sewage etc. are included, and sanitary sewage is exactly the sewage that daily life generates, and refers to various shapes
The inorganic matter of formula and the complex mixture of organic matter, including：（1）Floating and the size solid particle to suspend；（2）Gluey and gel
Shape diffusate；（3）Pure solution.
Divide by the matter of water dirt, the pollution of water there are two classes：One kind is natural pollution；Another kind of is artificial pollution, currently
It is artificial pollution to endanger larger water body.Water pollution can be broadly divided into chemical contamination, object according to the difference of pollution impurity
Rationality pollutes and biologic contamination three categories.Pollutant mainly has：（1）Unprocessed and discharge industrial wastewater；（2）Without place
The sanitary sewage managed and discharged；（3）It is a large amount of to use chemical fertilizer, the farmland sewage of pesticide, herbicide；（4）Stack industry by the river
Waste and house refuse；（5）Soil erosion；（6）Mine system engineering.
Although there is the method for many sewage disposals at present, the processing mainly for fluoride waste is specific square not yet
Case is a current problem for being badly in need of solving.
Invention content
The present invention provides a kind of processing method of fluoride waste, is contained with solving no be directed to mentioned above in the background art
The problem of fluorine waste water scheme.
Technical problem solved by the invention is realized using following technical scheme：
A kind of processing method of fluoride waste, includes the following steps,
Fluorine-containing waste water is first passed through the filtering of grating panel first, is then added to and adjusts in tank by the first step；
Second step puts the waste water adjusted in tank into first order reaction area, adds NaOH and CaCl2, and PH is adjusted to 12
Left and right, and be stirred continuously, so that waste water is come into full contact with reaction；
Third walks, and adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed pre- anti-
It answers；
Then 4th step puts the waste water after pre-reaction into second order reaction area, PAC is then added, and carries out coagulating；
Waste water in second order reaction area is entered level-one precipitation inclined plate device by the 5th step, while PAM is added and carries out coagulating sedimentation；
6th step puts the water in level-one precipitation inclined plate device into first order reaction slot, adds NaOH and CaCl2, and by PH tune
Section is stirred continuously to 12 or so, and waste water is made to come into full contact with reaction；
7th step adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed secondary pre-
Reaction；
Then 8th step puts the waste water after secondary pre-reaction into second order reaction slot, PAC is then added, and it is heavy to carry out second coagulation
It forms sediment；
9th step, the water outlet after second coagulation is precipitated enter intermediate pool, pass through more medium filter successively, activated carbon filters
Device；
Tenth step, is detected waste water, and the qualified water outlet of detection is then drained into clear water reserviors.
Beneficial effects of the present invention are：
The technical program is mainly used for the processing of fluoride waste, makes its qualified discharge, and the technical program technology is advanced, can
It leaning on, stable equipment operation, safety, operational administrative is easy, meanwhile, accomplish this engineering equipment cloth on the basis of system operation is reliable
Office is neat, and handsome in appearance, implementation result is ideal, suitable for promoting the use of on a large scale.
Specific implementation mode
A kind of processing method of fluoride waste, includes the following steps,
Fluorine-containing waste water is first passed through the filtering of grating panel first, is then added to and adjusts in tank by the first step；
Second step puts the waste water adjusted in tank into first order reaction area, adds NaOH and CaCl2, and PH is adjusted to 12
Left and right, and be stirred continuously, so that waste water is come into full contact with reaction；
Third walks, and adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed pre- anti-
It answers；
Then 4th step puts the waste water after pre-reaction into second order reaction area, PAC is then added, and carries out coagulating；
Waste water in second order reaction area is entered level-one precipitation inclined plate device by the 5th step, while PAM is added and carries out coagulating sedimentation；
6th step puts the water in level-one precipitation inclined plate device into first order reaction slot, adds NaOH and CaCl2, and by PH tune
Section is stirred continuously to 12 or so, and waste water is made to come into full contact with reaction；
7th step adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed secondary pre-
Reaction；
Then 8th step puts the waste water after secondary pre-reaction into second order reaction slot, PAC is then added, and it is heavy to carry out second coagulation
It forms sediment；
9th step, the water outlet after second coagulation is precipitated enter intermediate pool, pass through more medium filter successively, activated carbon filters
Device；
Tenth step, is detected waste water, and the qualified water outlet of detection is then drained into clear water reserviors.
Implementation principle：
The most common type when acidic and alkaline waste water is wastewater treatment, sour mass fraction difference is very big in wastewater treatment, and low is less than
1%, high is more than 10%, and acidic and alkaline waste water has stronger corrosivity, can need to outside be arranged through appropriate wastewater treatment, for acidic and alkaline waste water
Processing, it is contemplated that economic cause, such wastewater treatment should consider neutralisation treatment first, and neutralisation treatment should be considered first with useless
Control useless treatment principle.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
Should not be construed as limiting the present invention practical range, any changes and modifications in accordance with the scope of the present application,
It should all still fall within the scope of the patent of the present invention.
Claims (1)
1. a kind of processing method of fluoride waste, it is characterised in that：Include the following steps,
Fluorine-containing waste water is first passed through the filtering of grating panel first, is then added to and adjusts in tank by the first step；
Second step puts the waste water adjusted in tank into first order reaction area, adds NaOH and CaCl2, and PH is adjusted to 12
Left and right, and be stirred continuously, so that waste water is come into full contact with reaction；
Third walks, and adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed pre-reaction；
Then 4th step puts the waste water after pre-reaction into second order reaction area, PAC is then added, and carries out coagulating；
Waste water in second order reaction area is entered level-one precipitation inclined plate device by the 5th step, while PAM is added and carries out coagulating sedimentation；
6th step puts the water in level-one precipitation inclined plate device into first order reaction slot, adds NaOH and CaCl2, and by PH tune
Section is stirred continuously to 12 or so, and waste water is made to come into full contact with reaction；
7th step adds hydrochloric acid and PH is modulated 8.5, while CaCl is added2, then be stirred, so that waste water is completed secondary pre-
Reaction；
Then 8th step puts the waste water after secondary pre-reaction into second order reaction slot, PAC is then added, and it is heavy to carry out second coagulation
It forms sediment；
9th step, the water outlet after second coagulation is precipitated enter intermediate pool, pass through more medium filter successively, activated carbon filters
Device；
Tenth step, is detected waste water, and the qualified water outlet of detection is then drained into clear water reserviors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412281.XA CN108640335A (en) | 2018-05-03 | 2018-05-03 | A kind of processing method of fluoride waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412281.XA CN108640335A (en) | 2018-05-03 | 2018-05-03 | A kind of processing method of fluoride waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108640335A true CN108640335A (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810412281.XA Pending CN108640335A (en) | 2018-05-03 | 2018-05-03 | A kind of processing method of fluoride waste |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533318A (en) * | 2020-05-19 | 2020-08-14 | 苏州钢特威钢管有限公司 | Method for treating fluoride-containing pickling passivation wastewater in stainless steel production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050531A (en) * | 2009-10-30 | 2011-05-11 | 中芯国际集成电路制造(上海)有限公司 | Fluorine-containing wastewater treatment method |
| CN102992518A (en) * | 2012-11-27 | 2013-03-27 | 常州大学 | Treatment method of fluoride wastewater |
| CN103991984A (en) * | 2014-05-28 | 2014-08-20 | 合肥海润光伏科技有限公司 | Fluoride-contained wastewater treatment method and device |
| EP2927197A1 (en) * | 2012-11-30 | 2015-10-07 | Organo Corporation | System for treating coal gasification wastewater, and method for treating coal gasification wastewater |
| CN107879541A (en) * | 2017-11-25 | 2018-04-06 | 昆明有色冶金设计研究院股份公司 | A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment |
-
2018
- 2018-05-03 CN CN201810412281.XA patent/CN108640335A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050531A (en) * | 2009-10-30 | 2011-05-11 | 中芯国际集成电路制造(上海)有限公司 | Fluorine-containing wastewater treatment method |
| CN102992518A (en) * | 2012-11-27 | 2013-03-27 | 常州大学 | Treatment method of fluoride wastewater |
| EP2927197A1 (en) * | 2012-11-30 | 2015-10-07 | Organo Corporation | System for treating coal gasification wastewater, and method for treating coal gasification wastewater |
| CN103991984A (en) * | 2014-05-28 | 2014-08-20 | 合肥海润光伏科技有限公司 | Fluoride-contained wastewater treatment method and device |
| CN107879541A (en) * | 2017-11-25 | 2018-04-06 | 昆明有色冶金设计研究院股份公司 | A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533318A (en) * | 2020-05-19 | 2020-08-14 | 苏州钢特威钢管有限公司 | Method for treating fluoride-containing pickling passivation wastewater in stainless steel production |
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Application publication date: 20181012 |