CN109502875A - A kind of process for treating industrial waste water based on high-frequency enhanced flocculation - Google Patents
A kind of process for treating industrial waste water based on high-frequency enhanced flocculation Download PDFInfo
- Publication number
- CN109502875A CN109502875A CN201811649291.1A CN201811649291A CN109502875A CN 109502875 A CN109502875 A CN 109502875A CN 201811649291 A CN201811649291 A CN 201811649291A CN 109502875 A CN109502875 A CN 109502875A
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- China
- Prior art keywords
- waste water
- added
- frequency
- enhanced flocculation
- treating industrial
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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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
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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
- C02F1/52—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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Abstract
A kind of process for treating industrial waste water based on high-frequency enhanced flocculation, belong to technology of waste water control field, the processing method is introduced primarily into the process of high-frequency enhanced flocculation, by high frequency devices, solve the problems, such as that the conventional chemical precipitation method dosing for the wadding body and iron colloid that the heavy metal ion in industrial wastewater, Fenton oxidation tower are discharged is more, intractable.A small amount of PAC and PAM is added in it, can quickly form high density and high-intensitive wadding body, reduces sedimentation basin occupied area, reduces the load to subsequent Sewage advanced treatment and reuse technology, cuts operating costs, and creates economic value for enterprise.
Description
Technical field
The present invention relates to environmental protection, chemical technology field, in particular to a kind of industrial wastewaters based on high-frequency enhanced flocculation
Processing method.
Background technique
Removal of heavy metal ions in industrial wastewater, main use pass through the conventional chemical precipitation method.It first passes through adjustment pH,
So that water-soluble heavy metal is formed hydroxide precipitating, then add PAC and PAM, reaches mud-water separation in conjunction with inclined-plate clarifying basin.
Industrial Fenton oxidation tower water outlet contains a large amount of flocculates and colloid, need to add a large amount of PAM, make flocculate and colloid
It is de- steady, reach mud-water separation in conjunction with inclined-plate clarifying basin.
A large amount of flocculation aid PAC and PAM is added during this, otherwise can not meet wadding body size, wadding body density and stop
Time etc. requires.Meanwhile when water quality fluctuation is big, sedimentation basin water outlet contains a large amount of alumen ustum, brings to biochemical system huge
Harm.In addition, the addition of a large amount of PAC and PAM generates film irreversible broken in the Treated sewage reusing technique of membrane process craft
It is bad.
Summary of the invention
Present invention mainly solves the technical issues of: the removal of heavy metal ions being directed in industrial wastewater, Fenton oxidation
The removal of the wadding body and iron colloid of tower water outlet mainly using by the conventional chemical precipitation method, put into a large amount of PAC and PAM make wadding body and
Elimination of colloid stability sedimentation, thus mud-water separation.
In order to solve the above technical problems, the present invention provides a kind of Industrial Wastewater Treatment side based on high-frequency enhanced flocculation
Method, which is characterized in that it including the following steps:
1.: according to the pH value of industrial wastewater water quality, acidic materials or alkaline matter is added, adjusts the pH of waste water；
2.: according to waste water quality, ferrous and hydrogen peroxide is added by a certain percentage；
3.: the waste water after Fenton reaction blasts air, removes a small amount of gas in waste water；
4.: alkaline matter is added, adjusts waste water to required pH, forms hydroxide precipitating；
5.: suitable PAC aqueous solution is added, quickly stirring is sufficiently mixed medicament；
6.: by step 5. in waste water high frequency devices are passed through with certain flow rate；
7.: by the waste water of step 6., appropriate PAM is added with pipeline hybrid mode, flow in buffer container, is sufficiently mixed；
8.: well-mixed waste water flows to inclined-plate clarifying basin, carries out mud-water separation, precipitating sludge to sludge treatment equipment, water outlet
Then can direct emission up to standard or flow to membranous system carry out Treated sewage reusing.
Further, the industrial wastewater if the wastewater from chemical industry containing high COD or is the useless of more surfactant
Water etc., to be passed through the processing of industrial Fenton oxidation tower, processing step be 1. ~ 8..
Further, when the industrial wastewater is if single heavy metal-containing waste water, Fenton oxidation can directly be crossed over
Processing, omit step 1. ~ 3., directly into step 4. ~ 8..
Further, if the step 5. in after 2. ferrous iron is added in step, step can be omitted 5., be added without PAC.
Further, 6. high frequency equipment refers to that, by high-frequency electromagnetic wave device, frequency range exists to the step
Between 300KHz~300GHz, waste water issues raw resonance in high-frequency electromagnetic field action, promotes the de- steady and diffusion of particle in water, no
PAC and PAM dosage can only be reduced, also formation high density, high-intensitive wadding body, greatly shorten the residence time, and in sedimentation basin on
Clear liquid turbidity is lower.
Compared with the prior art, the invention has the advantages that:
(1) PAC and PAM dosage is reduced, is cut operating costs；
(2) high density and high-intensitive wadding body are formed, wadding body is avoided to enter biochemical system；
(3) shorten flocculation time, reduce sedimentation basin occupied area；
(4) for reuse water system, PAM dosage reduces, avoids the blocking of film, prolong the service life.
Detailed description of the invention
It will be obtained more fully from the detailed description of the embodiment below with reference to attached drawing with other advantages and features below
Understand, attached drawing must be considered in illustrative and non-limiting mode, in which:
Fig. 1 is the industrial wastewater process flow chart according to the embodiment of the present invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be appreciated that specific reality described herein
Example is applied only to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
A kind of process for treating industrial waste water based on high-frequency enhanced flocculation, if the wastewater from chemical industry containing high COD, specific steps
Are as follows:
1.: according to the pH value of industrial wastewater water quality, acidic materials or alkaline matter is added, adjusting the pH of waste water is 2 ~ 3.5；
2.: it is expected that waste water COD etc. needs the content of material of Fenton oxidation, add by a certain percentage certain density ferrous sulfate and
Hydrogen peroxide；
3.: the waste water after Fenton reacts blasts air, a small amount of gas in stripping waste water；
4.: the alkaline matters such as lime or sodium hydroxide are added, adjust the pH of waste water, form hydroxide precipitating；
5.: suitable PAC aqueous solution is added, quickly stirring is sufficiently mixed medicament；
6.: by step 5. in waste water with certain flow rate by high frequency devices, frequency range 300KHz~300GHz it
Between, waste water issues raw resonance in high-frequency electromagnetic field action, promotes the de- steady and diffusion of particle in water, can not only reduce PAC and PAM
The 30%~60% of dosage, also formation high density, high-intensitive wadding body, shorter residence time 20%-40%, supernatant fluid turbidity in sedimentation basin
It is lower, reduce biochemistry pool microorganism poisoning possibility；
7.: by the waste water of step 6., appropriate PAM is added with pipeline hybrid mode, flow in buffer container, is sufficiently mixed；
8.: well-mixed waste water flows to inclined-plate clarifying basin, carries out mud-water separation, precipitating sludge to sludge treatment equipment, water outlet
Then can direct emission up to standard or flow to membranous system carry out Treated sewage reusing.
If the step 5. in after 2. ferrous iron is added in step, step can be omitted 5., be added without PAC.
Embodiment 2:
A kind of process for treating industrial waste water based on high-frequency enhanced flocculation, if heavy metal-containing waste water, specific steps are as follows:
1.: the alkaline matters such as lime or sodium hydroxide are added to heavy metal-containing waste water, adjust the pH of waste water, it is heavy to form hydroxide
It forms sediment；
2.: suitable PAC aqueous solution is added, quickly stirring is sufficiently mixed medicament；
3.: by step 2. in waste water with certain flow rate by high frequency devices, frequency range 300KHz~300GHz it
Between, waste water issues raw resonance in high-frequency electromagnetic field action, promotes the de- steady and diffusion of particle in water, can not only reduce PAC and PAM
The 30%~60% of dosage, also formation high density, high-intensitive wadding body, shorter residence time 20%-40%, supernatant fluid turbidity in sedimentation basin
It is lower, reduce biochemistry pool microorganism poisoning possibility；
4.: by the waste water of step 3., appropriate PAM is added with pipeline hybrid mode, flow in buffer container, is sufficiently mixed；
5.: well-mixed waste water flows to inclined-plate clarifying basin, carries out mud-water separation, precipitating sludge to sludge treatment equipment, water outlet
Then can direct emission up to standard or flow to membranous system carry out Treated sewage reusing.
It can be seen from the above embodiments that, using high-frequency enhanced flocculation processing method, high density and high-strength can be formed
The wadding body of degree, avoids wadding body from entering biochemical system；Shorten flocculation time, reduces sedimentation basin occupied area；PAC and PAM dosage subtracts
It is few, the cleaning frequency of film during Treated sewage reusing is extended, irreversible destruction is avoided；PAC and PAM dosage is reduced, and is reduced
Operation cost creates economic value for enterprise.
The Applicant declares that the present invention is explained by the above embodiments method detailed of the invention, but the present invention not office
Be limited to above-mentioned method detailed, that is, do not mean that the invention must rely on the above detailed methods to implement.Technical field
Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., all of which fall within the scope of protection and disclosure of the present invention.
Claims (5)
1. a kind of process for treating industrial waste water based on high-frequency enhanced flocculation, which is characterized in that it including the following steps:
1.: according to the pH value of industrial wastewater water quality, acidic materials or alkaline matter is added, adjusts the pH of waste water；
2.: according to waste water quality, ferrous and hydrogen peroxide is added by a certain percentage；
3.: the waste water after Fenton reaction blasts air, removes a small amount of gas in waste water；
4.: alkaline matter is added, adjusts waste water to required pH, forms hydroxide precipitating；
5.: suitable PAC aqueous solution is added, quickly stirring is sufficiently mixed medicament；
6.: by step 5. in waste water high frequency devices are passed through with certain flow rate；
7.: by the waste water of step 6., appropriate PAM is added with pipeline hybrid mode, flow in buffer container, is sufficiently mixed；
8.: well-mixed waste water flows to inclined-plate clarifying basin, carries out mud-water separation, precipitating sludge to sludge treatment equipment, water outlet
Then can direct emission up to standard or flow to membranous system carry out Treated sewage reusing.
2. a kind of process for treating industrial waste water based on high-frequency enhanced flocculation according to claim 1, it is characterised in that:
When the industrial wastewater is if the wastewater from chemical industry containing high COD or for the waste water of more surfactant, the place to be passed through
Manage step be 1. ~ 8..
3. a kind of process for treating industrial waste water based on high-frequency enhanced flocculation according to claim 1, it is characterised in that:
When the industrial wastewater is if single heavy metal-containing waste water, can directly across Fenton oxidation handle, omit step 1. ~ 3.,
Directly into step 4. ~ 8..
4. a kind of process for treating industrial waste water based on high-frequency enhanced flocculation according to claim 1, it is characterised in that:
If the step 5. in after 2. ferrous iron is added in step, step can be omitted 5., be added without PAC.
5. a kind of process for treating industrial waste water based on high-frequency enhanced flocculation according to claim 1, it is characterised in that:
6. high frequency equipment refers to through high-frequency electromagnetic wave device the step, frequency range 300KHz~300GHz it
Between, waste water issues raw resonance in high-frequency electromagnetic field action, promotes the de- steady and diffusion of particle in water, can not only reduce PAC and PAM
Dosage, also formation high density, high-intensitive wadding body, greatly shorten the residence time, and supernatant fluid turbidity is lower in sedimentation basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649291.1A CN109502875A (en) | 2018-12-30 | 2018-12-30 | A kind of process for treating industrial waste water based on high-frequency enhanced flocculation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811649291.1A CN109502875A (en) | 2018-12-30 | 2018-12-30 | A kind of process for treating industrial waste water based on high-frequency enhanced flocculation |
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| CN109502875A true CN109502875A (en) | 2019-03-22 |
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| CN201811649291.1A Pending CN109502875A (en) | 2018-12-30 | 2018-12-30 | A kind of process for treating industrial waste water based on high-frequency enhanced flocculation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547737A (en) * | 2020-05-22 | 2020-08-18 | 萍乡市石化填料有限责任公司 | Method for separating ultrafine titanium silicalite molecular sieve from molecular sieve alkaline suspension |
| CN115196202A (en) * | 2022-07-08 | 2022-10-18 | 万华化学集团股份有限公司 | Pure MDI storage device and method for prolonging storage life of pure MDI by applying same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054091A (en) * | 1991-06-28 | 1993-01-14 | Meidensha Corp | Method and device for purifying water |
| CN102659297A (en) * | 2012-05-14 | 2012-09-12 | 哈尔滨工业大学 | Microwave and PAM (Polyacrylamide) flocculating agent combined sludge dewatering method |
| CN107758906A (en) * | 2016-08-17 | 2018-03-06 | 黄鸣 | The handling process of fluid bed is used in sewage disposal |
-
2018
- 2018-12-30 CN CN201811649291.1A patent/CN109502875A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054091A (en) * | 1991-06-28 | 1993-01-14 | Meidensha Corp | Method and device for purifying water |
| CN102659297A (en) * | 2012-05-14 | 2012-09-12 | 哈尔滨工业大学 | Microwave and PAM (Polyacrylamide) flocculating agent combined sludge dewatering method |
| CN107758906A (en) * | 2016-08-17 | 2018-03-06 | 黄鸣 | The handling process of fluid bed is used in sewage disposal |
Non-Patent Citations (1)
| Title |
|---|
| 王娟: "《环境工程实验技术与应用》", 31 August 2016, 中国建材工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547737A (en) * | 2020-05-22 | 2020-08-18 | 萍乡市石化填料有限责任公司 | Method for separating ultrafine titanium silicalite molecular sieve from molecular sieve alkaline suspension |
| CN115196202A (en) * | 2022-07-08 | 2022-10-18 | 万华化学集团股份有限公司 | Pure MDI storage device and method for prolonging storage life of pure MDI by applying same |
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Application publication date: 20190322 |
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