CN109516607A - A kind of sewage water treatment method - Google Patents
A kind of sewage water treatment method Download PDFInfo
- Publication number
- CN109516607A CN109516607A CN201910001323.5A CN201910001323A CN109516607A CN 109516607 A CN109516607 A CN 109516607A CN 201910001323 A CN201910001323 A CN 201910001323A CN 109516607 A CN109516607 A CN 109516607A
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- CN
- China
- Prior art keywords
- sewage
- water treatment
- treatment method
- sewage water
- organic polymer
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- 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
-
- 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
- C02F1/52—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
- C02F1/5236—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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of sewage water treatment methods, comprising the following steps: alkaline solution is added into sewage, adjusts pH value to 10-11；Then inorganic polymer flocculant is added into sewage, adjusts pH value to 6-7；Organic polymer coargulator is finally added into sewage；After mechanical stirring or hydraulic mixing, 2-3 minutes are stood；By the percentages for accounting for sewage quality: alkaline solution 1-2%；Inorganic polymer flocculant is 5-6%；Organic polymer coargulator is 5-7%.A kind of sewage water treatment method of the present invention, has cooperateed with inorganic polymer flocculant and organic polymer coargulator.So that harmful substance and heavy metal bridge formation, absorption in sewage is formed floc sedimentation first with inorganic polymer flocculant, in conjunction with the electrical property neutralization of organic polymer coargulator, molecular entanglement, finally makes municipal wastewater rapid flocculation (2-3 minutes)；High concentrtion, the municipal wastewater of high concentration and all types of industries sewage, with good economic efficiency and social benefit can effectively be handled.
Description
Technical field
The present invention relates to sewage treatment field, in particular to a kind of sewage water treatment method.
Background technique
Municipal wastewater is the general name of sanitary sewage within the scope of urban area, industrial wastewater and runoff sewage, it is usually
Collected by city pipe duct and is discharged into water body or is discharged into water body after handling by municipal sewage plant.In recent years, with population
Increase and the development of modern industry, sanitary sewage and industrial wastewater sharply increase so that 80% river receive it is different degrees of
Pollution.
The processing method of municipal wastewater mainly uses flocculant at present, is divided into inorganic flocculating agent and organic flocculant.It is inorganic
Flocculant includes aluminum sulfate, aluminium chloride, ferric sulfate, iron chloride series, also includes its derivative high polymer series.With using into
The advantages that this is low, good to colloid flocculating effect, but there is also requiring pH, stringent, dosage is big, sludge yield is big and metal
The problems such as ion residues.Organic polymer coargulator includes natural polymer and synthetic polymeric flocculant, wherein synthesizing high score
Sub- flocculant mainly includes polyacrylamide, epichlorohydrin amine and poly- ammonium flocculant etc..It is organic compared with inorganic flocculating agent
Synthetic polymeric flocculant have structure-controllable, the pH scope of application is wide, dosage is small, flocculating effect is good, without metal residual and dirt
The advantages that mud yield is few.Wherein the cation acrylamide of inverse emulsion polymerization is with molecular weight is big, dosage is few, rate of dissolution
Fastly, the features such as flocculating effect is good.
Patent CN108545818A is prepared for composite flocculation agent using the cation emulsion of different ions degree, it can solve
The problem that single Flocculating Effect of Flocculant is unstable in the prior art, dissolution time is long.But organic polymer coargulator price compared with
Height, and the cationic composite flocculation agent dosage of different ions degree also leads to greatly processing cost height.
Summary of the invention
The object of the present invention is to provide a kind of sewage water treatment methods, are wadded a quilt with cotton using organic polymer coargulator and inorganic polymer
Solidifying agent combines, adaptable, can make harmful substance and heavy metal rapid flocculation (2-3 minutes) in sewage, can be effective
Processing high concentrtion, high concentration municipal wastewater and all types of industries sewage, with good economic efficiency and social benefit.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of sewage water treatment method, comprising the following steps:
(1) alkaline solution is added into sewage, adjusts pH value to 10-11；
(2) inorganic polymer flocculant is then added into sewage, adjusts pH value to 6-7；
(3) organic polymer coargulator is finally added into sewage；
(4) after mechanical stirring or hydraulic mixing, 2-3 minutes are stood；
By the percentages for accounting for sewage quality: the alkaline solution is 1-2%；The inorganic polymer flocculant is 5-6%；It is described
Organic polymer coargulator is 5-7%.
Preferably, the alkaline solution by one of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate or it is a kind of with
Upper composition.
It is highly preferred that the mass concentration of the alkaline solution is 10-15%.
Preferably, the inorganic polymer flocculant is by aluminium polychloride, poly-ferric chloride, polyaluminium sulfate, polymerised sulphur
One of sour iron or more than one compositions.
It is highly preferred that the inorganic polymer flocculant is configured to the aqueous solution that mass concentration is 10-15%, add
In sewage.
Preferably, the organic polymer coargulator passes through inverse emulsion polymerization system by acrylamide and cationic monomer
?.Using organic polymer coargulator made from inverse emulsion polymerization, with molecular weight is high, rate of dissolution is fast, flocculating effect is good
The advantages that small with dosage.
It is highly preferred that the cationic monomer is by (methyl) acryloyloxyethyl trimethyl ammonium chloride, (methyl) acrylic acid
Dimethylaminoethyl, (methyl) diethylaminoethyl acrylate, diallyidimethylammonium chloride amine, dimethylamino-propyl acryloyl
One of amine or more than one compositions.
It is highly preferred that the mass ratio of the acrylamide and the cationic monomer is 6:4-3:7.
It is highly preferred that the molecular weight of the organic polymer coargulator is 300-1000 ten thousand.
It is highly preferred that the organic polymer coargulator is configured to mass concentration as the aqueous solution of 0.3-0.5%, then plus
Enter in sewage.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: a kind of dirt of the present invention
Method for treating water has cooperateed with inorganic polymer flocculant and organic polymer coargulator.Make first with inorganic polymer flocculant
Harmful substance in sewage and heavy metal are built bridge, absorption forms floc sedimentation, in conjunction with organic polymer coargulator electrical property neutralize, point
Son tangles, and finally makes municipal wastewater rapid flocculation (2-3 minutes)；Can effectively handle high concentrtion, high concentration municipal wastewater and
All types of industries sewage, with good economic efficiency and social benefit.
Detailed description of the invention
Attached drawing 1 is untreated municipal wastewater figure；
Attached drawing 2 is by the method for the present invention treated municipal wastewater figure.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to specific embodiment.
Example 1
Municipal wastewater 500mL is taken, 10% sodium hydroxide solution 5mL is first added, adjusts pH to 10 after mixing；Then it is added 10%
Polymeric aluminum chlorides solution 25mL, after mixing adjust pH to 6；It is eventually adding 0.3% organic polymer coargulator 25mL, is stirred
It is staticly settled after mixing uniformly.
Referring to shown in Fig. 1-2, Fig. 1 is untreated municipal wastewater, and Fig. 2 is processed by processing method in embodiment 1
Municipal wastewater, sewage rapid flocculation in 2-3 minutes.
Example 2
Municipal wastewater 500mL is taken, 12% sodium hydroxide solution 7mL is first added, adjusts pH to 10 after mixing；Then it is added 13%
Polyaluminium ferrous solution 30mL, after mixing adjust pH to 6；It is eventually adding 0.4% organic polymer coargulator 25mL, is stirred
It is staticly settled after mixing uniformly.
Example 3
Municipal wastewater 500mL is taken, 15% potassium hydroxide solution 7mL is first added, adjusts pH to 11 after mixing；Then it is added 15%
Polyaluminum sulfate aluminum solutions 30mL, after mixing adjust pH to 7；It is eventually adding 0.5% organic polymer coargulator 30mL, is stirred
It is staticly settled after mixing uniformly.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand the contents of the present invention and be implemented, and it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of sewage water treatment method, it is characterised in that: the following steps are included:
(1) alkaline solution is added into sewage, adjusts pH value to 10-11；
(2) inorganic polymer flocculant is then added into sewage, adjusts pH value to 6-7；
(3) organic polymer coargulator is finally added into sewage；
(4) after mechanical stirring or hydraulic mixing, 2-3 minutes are stood；
By the percentages for accounting for sewage quality: the alkaline solution is 1-2%；The inorganic polymer flocculant is 5-6%；It is described
Organic polymer coargulator is 5-7%.
2. a kind of sewage water treatment method according to claim 1, it is characterised in that: the alkaline solution by sodium hydroxide,
One of potassium hydroxide, sodium carbonate, potassium carbonate or more than one compositions.
3. a kind of sewage water treatment method according to claim 2, it is characterised in that: the mass concentration of the alkaline solution is
10-15%。
4. a kind of sewage water treatment method according to claim 1, it is characterised in that: the inorganic polymer flocculant is by gathering
Close one of aluminium chloride, poly-ferric chloride, polyaluminium sulfate, bodied ferric sulfate or more than one compositions.
5. a kind of sewage water treatment method according to claim 4, it is characterised in that: match the inorganic polymer flocculant
The aqueous solution that mass concentration is 10-15% is made, adds in sewage.
6. a kind of sewage water treatment method according to claim 1, it is characterised in that: the organic polymer coargulator is by third
Acrylamide and cationic monomer are made by inverse emulsion polymerization.
7. a kind of sewage water treatment method according to claim 6, it is characterised in that: the cationic monomer is by (methyl) third
Alkene acyloxyethyl trimethyl ammonia chloride amine, (methyl) dimethylaminoethyl acrylate, (methyl) diethylaminoethyl acrylate, diene
One of propyl-dimethyl ammonium chloride, dimethylamino propyl acrylamide or more than one compositions.
8. a kind of sewage water treatment method according to claim 6, it is characterised in that: the acrylamide and the cation
The mass ratio of monomer is 6:4-3:7.
9. a kind of sewage water treatment method according to claim 6, it is characterised in that: point of the organic polymer coargulator
Son amount is 300-1000 ten thousand.
10. a kind of sewage water treatment method according to claim 6, it is characterised in that: by the organic polymer coargulator
It is configured to the aqueous solution that mass concentration is 0.3-0.5%, is added in sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001323.5A CN109516607A (en) | 2019-01-02 | 2019-01-02 | A kind of sewage water treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001323.5A CN109516607A (en) | 2019-01-02 | 2019-01-02 | A kind of sewage water treatment method |
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| CN109516607A true CN109516607A (en) | 2019-03-26 |
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| CN201910001323.5A Pending CN109516607A (en) | 2019-01-02 | 2019-01-02 | A kind of sewage water treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498973A (en) * | 2020-05-14 | 2020-08-07 | 北京中科康仑环境科技研究院有限公司 | Heavy metal wastewater treatment agent and treatment method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597550A (en) * | 2003-09-15 | 2005-03-23 | 中国石油化工股份有限公司 | Cation type polymer flocculating agent and its preparation method |
| CN102515382A (en) * | 2011-11-09 | 2012-06-27 | 中国神华能源股份有限公司 | Discharged circulated cooling water recycling method |
| CN102992553A (en) * | 2012-12-31 | 2013-03-27 | 黄河三角洲京博化工研究院有限公司 | Method for comprehensively treating and utilizing dissolving pulp black liquor |
-
2019
- 2019-01-02 CN CN201910001323.5A patent/CN109516607A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597550A (en) * | 2003-09-15 | 2005-03-23 | 中国石油化工股份有限公司 | Cation type polymer flocculating agent and its preparation method |
| CN102515382A (en) * | 2011-11-09 | 2012-06-27 | 中国神华能源股份有限公司 | Discharged circulated cooling water recycling method |
| CN102992553A (en) * | 2012-12-31 | 2013-03-27 | 黄河三角洲京博化工研究院有限公司 | Method for comprehensively treating and utilizing dissolving pulp black liquor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498973A (en) * | 2020-05-14 | 2020-08-07 | 北京中科康仑环境科技研究院有限公司 | Heavy metal wastewater treatment agent and treatment method thereof |
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Application publication date: 20190326 |
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