CN105293755A - Phosphorus removal method of domestic sewage - Google Patents
Phosphorus removal method of domestic sewage Download PDFInfo
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- CN105293755A CN105293755A CN201510656618.8A CN201510656618A CN105293755A CN 105293755 A CN105293755 A CN 105293755A CN 201510656618 A CN201510656618 A CN 201510656618A CN 105293755 A CN105293755 A CN 105293755A
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- sanitary sewage
- domestic sewage
- reaction tank
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- phosphorus removal
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Abstract
The invention relates to a phosphorus removal method of domestic sewage. The phosphorus removal method comprises the steps of leading the domestic sewage into a reaction tank, adding polyacrylamide, stirring with a magnetic stirrer, so that the domestic sewage is in a suspension state, and aerating by adopting a blast aerator, wherein the aeration rate is 3 to 5 L/min, and the reaction time is 1 to 8 hours; adding ferric oxide to the reaction tank, and standing and precipitating for 1 to 12 hours; enabling the effluent of the reaction tank to enter a sand filter, so as to remove suspended particles from the effluent, and removing COD attached to the suspended particles. The method has efficient comprehensive removal capability on various pollutants in the domestic sewage, the treated domestic sewage can reach the discharge standard, and the phosphorus removal effect is good.
Description
Technical field
The present invention relates to one way of life sewage dephosphorization method, belong to sanitary sewage disposal field.
Background technology
Use at present both at home and abroad more dephosphorization process mainly by physics, chemistry with the technology of biology.Apply to technology of phosphorus removal from wastewater most often metal salt precipitate dephosphorization method, physical adsorption dephosphorization method, film process dephosphorization method and natural facture.Metal-salt dephosphorization method will drop into a large amount of chemical agents, produces a large amount of chemical bed muds, causes secondary pollution, adds additional sludge disposal cost, have very strong dependency to pH in water body environment, needs to rely on extraneous acid-alkali accommodation; Physical adsorption dephosphorization method exists that use cost is higher, sorbent material is saturated or the problem of blocking and adsorbent reactivation difficulty; In film process dephosphorization method, the process problem of fouling membrane and enriched substance still has to be solved; There is the relatively low problem that namely dwell time of sewage is longer of the lower i.e. floor space of organic loading speed that is comparatively large and process naturally of unit surface in nature facture.
Summary of the invention
Technical problem to be solved by this invention is to provide one way of life sewage dephosphorization method, and the inventive method has efficiently comprehensive removal ability to pollutent various in sanitary sewage, and the sanitary sewage after process can qualified discharge, and phosphor-removing effect is best.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: one way of life sewage dephosphorization method, comprising:
1) sanitary sewage is introduced reaction tank, add polyacrylamide, by magnetic stirrer, make sanitary sewage be in suspended state, adopt blast aeration machine aeration, aeration rate is 3-5L/min, and the reaction times is 1-8 hour;
2) in reaction tank, add ferric oxide, staticly settle 1-12 hour;
3) reaction tank water outlet enters sand filtration, removes the suspended particle in water, is removed by the COD be attached on suspended particle.
On the basis of technique scheme, the present invention can also do following improvement.
Further, 1) in, the add-on of described polyacrylamide and sanitary sewage mass ratio are 1:100-200.
Further, 2) in, the add-on of described ferric oxide is 0.05-0.5 times of sanitary sewage quality.
The invention has the beneficial effects as follows:
The inventive method has efficiently comprehensive removal ability to pollutent various in sanitary sewage, and the sanitary sewage after process can qualified discharge, and phosphor-removing effect is best.
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
One way of life sewage dephosphorization method, comprising:
1) sanitary sewage is introduced reaction tank, add polyacrylamide, by magnetic stirrer, sanitary sewage is made to be in suspended state, adopt blast aeration machine aeration, aeration rate is 5L/min, and the reaction times is 1-8 hour, and the add-on of described polyacrylamide and sanitary sewage mass ratio are 1:100.
2) in reaction tank, add ferric oxide, staticly settle 12 hours, the add-on of described ferric oxide is 0.05 times of sanitary sewage quality.
3) reaction tank water outlet enters sand filtration, removes the suspended particle in water, is removed by the COD be attached on suspended particle.
Embodiment 2
One way of life sewage dephosphorization method, comprising:
1) sanitary sewage is introduced reaction tank, add polyacrylamide, by magnetic stirrer, sanitary sewage is made to be in suspended state, adopt blast aeration machine aeration, aeration rate is 5L/min, and the reaction times is 1-8 hour, and the add-on of described polyacrylamide and sanitary sewage mass ratio are 1:200.
2) in reaction tank, add ferric oxide, staticly settle 7 hours, the add-on of described ferric oxide is 0.08 times of sanitary sewage quality.
3) reaction tank water outlet enters sand filtration, removes the suspended particle in water, is removed by the COD be attached on suspended particle.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. one way of life sewage dephosphorization method, is characterized in that, comprising:
1) sanitary sewage is introduced reaction tank, add polyacrylamide, by magnetic stirrer, make sanitary sewage be in suspended state, adopt blast aeration machine aeration, aeration rate is 3-5L/min, and the reaction times is 1-8 hour;
2) in reaction tank, add ferric oxide, staticly settle 1-12 hour;
3) reaction tank water outlet enters sand filtration, removes the suspended particle in water, is removed by the COD be attached on suspended particle.
2. sanitary sewage phosphorus removing method according to claim 1, is characterized in that, 1) in, the add-on of described polyacrylamide and sanitary sewage mass ratio are 1:100-200.
3. sanitary sewage phosphorus removing method according to claim 1, is characterized in that, 2) in, the add-on of described ferric oxide is 0.05-0.5 times of sanitary sewage quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510656618.8A CN105293755A (en) | 2015-10-13 | 2015-10-13 | Phosphorus removal method of domestic sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510656618.8A CN105293755A (en) | 2015-10-13 | 2015-10-13 | Phosphorus removal method of domestic sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105293755A true CN105293755A (en) | 2016-02-03 |
Family
ID=55191698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510656618.8A Pending CN105293755A (en) | 2015-10-13 | 2015-10-13 | Phosphorus removal method of domestic sewage |
Country Status (1)
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| CN (1) | CN105293755A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531409A (en) * | 1978-08-25 | 1980-03-05 | Asahi Chem Ind Co Ltd | Removing phosphate ion from waste water |
| CN1412133A (en) * | 2001-10-15 | 2003-04-23 | 中国市政工程华北设计研究院 | Air-stirring sludge-refluxing chemical flocculation precipitation sewage treatment method |
| CN1821112A (en) * | 2006-03-06 | 2006-08-23 | 山东大学 | Intensified mixed coagulation and dynamic film integrated waste water treating process |
| CN101492211A (en) * | 2009-02-27 | 2009-07-29 | 山东大学 | Spiral type circular current sewage water flocculation pool |
| CN103771622A (en) * | 2014-01-20 | 2014-05-07 | 南通华新环保设备工程有限公司 | Method for removing phosphorous from domestic sewage |
-
2015
- 2015-10-13 CN CN201510656618.8A patent/CN105293755A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531409A (en) * | 1978-08-25 | 1980-03-05 | Asahi Chem Ind Co Ltd | Removing phosphate ion from waste water |
| CN1412133A (en) * | 2001-10-15 | 2003-04-23 | 中国市政工程华北设计研究院 | Air-stirring sludge-refluxing chemical flocculation precipitation sewage treatment method |
| CN1821112A (en) * | 2006-03-06 | 2006-08-23 | 山东大学 | Intensified mixed coagulation and dynamic film integrated waste water treating process |
| CN101492211A (en) * | 2009-02-27 | 2009-07-29 | 山东大学 | Spiral type circular current sewage water flocculation pool |
| CN103771622A (en) * | 2014-01-20 | 2014-05-07 | 南通华新环保设备工程有限公司 | Method for removing phosphorous from domestic sewage |
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Application publication date: 20160203 |
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| RJ01 | Rejection of invention patent application after publication |