CN201648175U - Biological treatment magnetic coprecipitation system - Google Patents
Biological treatment magnetic coprecipitation system Download PDFInfo
- Publication number
- CN201648175U CN201648175U CN2009202777279U CN200920277727U CN201648175U CN 201648175 U CN201648175 U CN 201648175U CN 2009202777279 U CN2009202777279 U CN 2009202777279U CN 200920277727 U CN200920277727 U CN 200920277727U CN 201648175 U CN201648175 U CN 201648175U
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- CN
- China
- Prior art keywords
- magnetic
- tank
- sludge
- biological treatment
- biological
- Prior art date
- 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.)
- Expired - Lifetime
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- 238000000975 co-precipitation Methods 0.000 title abstract description 3
- 239000010802 sludge Substances 0.000 claims abstract description 54
- 239000010865 sewage Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 239000013043 chemical agent Substances 0.000 claims description 5
- 159000000013 aluminium salts Chemical class 0.000 claims description 4
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- 239000002028 Biomass Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000007885 magnetic separation Methods 0.000 abstract description 6
- 238000001556 precipitation Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 9
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses a biological treatment magnetic coprecipitation system, of which a magnetic loading biological tank mainly adopts an active sludge biological treatment tank, a magnetic precipitation system mainly adopts a precipitation tank and a sludge tank, and a magnetic separation spiral flow system mainly adopts a magnetic separation tank. An aeration device is mounted at the bottom of the active sludge biological treatment tank, mixed solution processed in the active sludge biological treatment tank flows into the precipitation tank, supernatant fluid which serves as the outlet water is discharged after the separation, and the precipitated sludge containing magnetic loading materials is discharged into the sludge tank; a blender, a return sludge pump and a surplus sludge pump are mounted in the sludge tank; a magnetic drum is mounted in the magnetic separation tank; and a dredge pipeline mounted at the bottom of the magnetic separation tank discharges the sludge from which the magnetic loading materials are separated into a sludge treatment system in a sewage treatment plant. The device can solve the technical problems of unsatisfactory precipitation effect, large volume of the structures and occupied area, etc. in the traditional secondary precipitation tank.
Description
Technical field
The utility model belongs to technical field of sewage.
Prior art
The one-level A that " urban wastewater treatment firm pollutant emission standard (GB18918-2002) " that is carrying out according to present China stipulates, the requirement of one-level B emission standard, municipal effluent should reach the degree of second-stage treatment at least, and typical urban sewage treatment process flow process is as follows.
The sewage work that has does not establish primary sedimentation pond, and the sewage work that has does not establish sludge digestion tank, but the sewage work of every employing second-stage treatment technical process must establish secondary sedimentation basins.In typical sewage treatment process, after secondary sedimentation basins is located at biological treatment tank, biological sludge is precipitated as device for separating mud and water, discharge limpid treating water simultaneously.
The difference that the secondary sedimentation basins that sewage work adopts is pressed the pool inner water flow path direction is divided into flat flow, radial-flow, vertical-flow three kinds.All there are two shortcomings in these three kinds of settling tanks: the one, and clearance is low; The 2nd, Chi Tida, floor space is also big.The approach that improves these two shortcomings has two: the one, improve the sedimentation function of suspended substance in the sewage itself; The 2nd, the structure of improvement settling tank.The modification method that often adopts is that inclined tube or swash plate are installed in settling tank at present.Yet with regard to prior art, even the secondary sedimentation basins through improveing, in order to obtain good sedimentation effect, hydraulic detention time also should not be too short, and between 1.5～4 hours, the volume of structures and floor space are still bigger usually.
Summary of the invention
The purpose of this utility model provides the coprecipitated system of a kind of biological treatment magnetic, technical problem such as the sedimentation effect that traditional secondary sedimentation basins exists is undesirable to solve, the volume of structures and floor space are bigger.
The coprecipitated system of a kind of biological treatment magnetic described in the utility model comprises that magnetic loads biological tank system, magnetic settling system and magnetic and separates return-flow system; It is active sludge biological treating pond (1) that magnetic loads biological tank system main units; Magnetic settling system main units is settling tank (2) and sludge sump (4); It is magnetic separate tank (3) that magnetic separates the return-flow system main units; The aerating apparatus (7) that is equipped with to biological treatment tank oxygen supply gas in active sludge biological treating pond (1) bottom and makes active sludge and magnetic add loading to be in suspended state, mixed solution after active sludge biological treating pond (1) is handled flows into settling tank (4), in settling tank (4), carry out mud-water separation, separate the back supernatant liquor and discharge as water outlet, the spoil disposal pipeline of mud bottom settling tank (2) that magnetic adds loading that contain that precipitates enters sludge sump (4); Mud valve (13) is housed on the described spoil disposal pipeline; The agitator (11) that makes mud be in suspended state is housed in the sludge sump, mud is risen to biological treatment tank with return sludge pump (8) that guarantees the biomass in the biological treatment tank and the residual sludge pump (9) that mud is risen to the magnetic separate tank; Be equipped with in the magnetic separate tank (3) and magnetic is added loading from mud, separate the magnetic drum (6) that drops into the biological treatment tank recycle again, magnetic separate tank (3) is equipped with the spoil disposal pipeline at the bottom of the pond, mud valve (14) is housed on the spoil disposal pipeline, isolates the mud that magnetic adds loading and enter the sludge of sewage treatment plants treatment system.
The coprecipitated system of aforesaid a kind of biological treatment magnetic according to the needs of sewage treatment process, increases chemical medicine system, and chemical medicine system main units is medicine dissolving tank (5); Medicine dissolving tank is furnished with the agitator (12) that makes pharmaceutical chemicals (aluminium salt or molysite) fast water-soluble, chemical agent is added the dosing pump (10) of biological treatment tank.
The utility model is compared with the traditional active sludge biologic treating technique, investment, running cost, level of management require basic identical, but treatment effect obviously improves, the impact resistance of system and stability are all very good, simultaneously can reduce hydraulic detention time, improve sewage disposal plant effluent water quality, biggest advantage is that floor space significantly reduces.
Description of drawings
Fig. 1 is the coprecipitated system process figure of the utility model biological treatment magnetic.
Biological treatment magnetic coprecipitation technology (Biological Magnetic Sedimentation Technology, the BMEDI of to the effect that adopting of the present utility model; Be called for short BMB technology) traditional active sludge biological treating tank and secondary sedimentation tank are improved. This technology adds flocculation, the sedimentation effect that loading improves activated sludge by add magnetic in biological treatment tank, being wrapped in the activated sludge that magnetic adds loading separates in the magnetic settling system with water, a precipitating sludge part is back to biological treatment tank, all the other enter magnetic separation system, magnetic separation system will be wrapped in magnetic in the mud and add that loading is separated and to get back to biological treatment tank recycling, and the mud after magnetic separates enters the sludge of sewage treatment plant treatment system. This technical matters system comprises that magnetic loads biological tank system, magnetic settling system and magnetic and separates return-flow system. According to the needs of sewage disposal process, can increase chemical medicine system, adding a certain amount of chemical agent (aluminium salt or molysite) in the biological tank improves phosphor-removing effect, also helps sludge flocculation, precipitation, improves mud-water separation efficient. The magnetic settling system can be brought into play the effect of secondary sedimentation tank, and the index such as water outlet total phosphorus, suspended solid all is better than the secondary sedimentation tank water outlet, simultaneously can reduce hydraulic detention time, usually magnetic settling system hydraulic detention time only is 10～20 minutes, compare with 1.5～4 hours the time of staying of traditional secondary sedimentation basin, the time of staying significantly reduces, and has the advantage of saving floor space. Therefore, this technology can economize the land resource greatly for newly-built urban wastewater treatment firm; For building urban wastewater treatment firm, can utilize the soil that saves sewage treatment plant is carried out dilatation or upgrading.
Embodiment
Application the technology of the present invention need adopt and magnetic can be added the magnetic drum (magnetic drum is used for magnetic concentration) that loading is separated more from mud, and other equipment are the water treatment general-purpose equipment.
The composition of the coprecipitated system of biological treatment magnetic is referring to Fig. 1, and the coprecipitated technical matters of biological treatment magnetic system comprises that mainly magnetic loads biological treatment cell system, magnetic settling system and magnetic and separates return-flow system, can increase chemical medicine system when the needs chemical dephosphorization.It is active sludge biological treating pond (1) that magnetic loads biological tank system main units; Magnetic settling system main units is settling tank (2) and sludge sump (4); It is magnetic separate tank (3) that magnetic separates the return-flow system main units; Chemistry medicine system main units is medicine dissolving tank (5).Aerating apparatus (7), the function of aerating apparatus are installed in active sludge biological treating pond bottom
Be to be biological treatment tank oxygen supply gas, make active sludge and magnetic add loading simultaneously and be in suspended state.Mixed solution after the active sludge biological treating pond is handled flows into settling tank, carries out mud-water separation in settling tank, separates the back supernatant liquor and discharges as water outlet, and the spoil disposal pipeline of the mud that containing of precipitating, magnetic added loading at the bottom of by settling tank enters sludge sump.The settling tank bottom is equipped with the spoil disposal pipeline and is communicated with sludge sump, and mud valve (13) is housed on the pipeline.Agitator (11), return sludge pump (8) and residual sludge pump (9) are housed in the sludge sump, the effect of sludge sump agitator is to make mud be in suspended state, the returned sluge pumping action is that mud is risen to biological treatment tank to guarantee the biomass in the biological treatment tank, and the excess sludge pumping action is that mud is risen to the magnetic separate tank.Magnetic drum (6) is housed in the magnetic separate tank, magnetic drum adds loading with magnetic and separates from mud and drop into the biological treatment tank recycle again, the magnetic separate tank is equipped with the spoil disposal pipeline at the bottom of the pond, and mud valve (14) is housed on the spoil disposal pipeline, isolates the mud that magnetic adds loading and enters the sludge of sewage treatment plant treatment system.Medicine dissolving tank is furnished with agitator (12), dosing pump (10), the effect of medicine dissolving tank agitator is to make pharmaceutical chemicals (aluminium salt or molysite) water-soluble fast, the dosing pump effect is that chemical agent is added biological treatment tank, make chemical agent play the effect of chemical dephosphorization, can improve flocculation, the sedimentation effect of mud simultaneously at biological treatment tank.
1. newly-built sewage work
With scale 50,000 m
3The sewage work of/d is an example, adopts the traditional active sludge biologic treating technique, and the floor space of secondary sedimentation basins generally is no less than 1400m
2Adopt the coprecipitated technology of biological treatment magnetic, the floor space of settling system can be reduced to 350m
2, floor space can save 75%.
2. reconstruct sewage work
With scale 200,000 m
3Certain sewage work of/d is an example, and existing sewage work adopts the oxidation ditch treatment process, and the secondary sedimentation basins floor space is 2.4ha., adopts the coprecipitated technology of biological treatment magnetic, and the settling system floor space only is 0.2ha., and floor space can save 92%.
3. reconstruct sewage work
With scale 600,000 m
3Certain sewage work of/d is an example, and existing sewage work adopts A
2/ O treatment process, secondary sedimentation basins floor space are 9ha., adopt the coprecipitated technology of biological treatment magnetic, and the settling system floor space only is 0.5ha., and floor space can save 94%.
The present invention is applicable to newly-built and reconstruction sewage work.
Claims (2)
1. the coprecipitated system of biological treatment magnetic is characterized in that it comprises that magnetic loads biological tank system, magnetic settling system and magnetic and separates return-flow system; It is active sludge biological treating pond (1) that magnetic loads biological tank system main units; Magnetic settling system main units is settling tank (2) and sludge sump (4); It is magnetic separate tank (3) that magnetic separates the return-flow system main units; The aerating apparatus (7) that is equipped with to biological treatment tank oxygen supply gas in active sludge biological treating pond (1) bottom and makes active sludge and magnetic add loading to be in suspended state, mixed solution after active sludge biological treating pond (1) is handled flows into settling tank (4), in settling tank (4), carry out mud-water separation, separate the back supernatant liquor and discharge as water outlet, the spoil disposal pipeline of mud bottom settling tank (2) that magnetic adds loading that contain that precipitates enters sludge sump (4); Mud valve (13) is housed on the described spoil disposal pipeline; The agitator (11) that makes mud be in suspended state is housed in the sludge sump, mud is risen to biological treatment tank with return sludge pump (8) that guarantees the biomass in the biological treatment tank and the residual sludge pump (9) that mud is risen to the magnetic separate tank; Be equipped with in the magnetic separate tank (3) and magnetic is added loading from mud, separate the magnetic drum (6) that drops into the biological treatment tank recycle again, magnetic separate tank (3) is equipped with the spoil disposal pipeline at the bottom of the pond, mud valve (14) is housed on the spoil disposal pipeline, isolates the mud that magnetic adds loading and enter the sludge of sewage treatment plants treatment system.
2. the coprecipitated system of a kind of biological treatment magnetic as claimed in claim 1 is characterized in that: according to the needs of sewage treatment process, increase chemical medicine system, chemical medicine system main units is medicine dissolving tank (5); Medicine dissolving tank is furnished with the agitator (12) that makes pharmaceutical chemicals (aluminium salt or molysite) fast water-soluble, chemical agent is added the dosing pump (10) of biological treatment tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202777279U CN201648175U (en) | 2009-12-01 | 2009-12-01 | Biological treatment magnetic coprecipitation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202777279U CN201648175U (en) | 2009-12-01 | 2009-12-01 | Biological treatment magnetic coprecipitation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201648175U true CN201648175U (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202777279U Expired - Lifetime CN201648175U (en) | 2009-12-01 | 2009-12-01 | Biological treatment magnetic coprecipitation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201648175U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701449A (en) * | 2012-05-15 | 2012-10-03 | 北京工业大学 | Magnetic activated sludge reactor and method for realizing short-cut denitrification |
| CN102992476A (en) * | 2012-10-11 | 2013-03-27 | 安徽华骐环保科技股份有限公司 | Process, device and system for biological treatment for internal reflux sewage by magnetic-loading magnetic sludge |
| CN106219907A (en) * | 2016-09-19 | 2016-12-14 | 青岛洛克环保科技有限公司 | Mineral for sewage disposal loads biochemical materialization coupled processing method and system |
| CN109455800A (en) * | 2018-12-20 | 2019-03-12 | 欧基（上海）环保科技有限公司 | A kind of magnetic separating apparatus |
-
2009
- 2009-12-01 CN CN2009202777279U patent/CN201648175U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701449A (en) * | 2012-05-15 | 2012-10-03 | 北京工业大学 | Magnetic activated sludge reactor and method for realizing short-cut denitrification |
| CN102992476A (en) * | 2012-10-11 | 2013-03-27 | 安徽华骐环保科技股份有限公司 | Process, device and system for biological treatment for internal reflux sewage by magnetic-loading magnetic sludge |
| CN106219907A (en) * | 2016-09-19 | 2016-12-14 | 青岛洛克环保科技有限公司 | Mineral for sewage disposal loads biochemical materialization coupled processing method and system |
| CN109455800A (en) * | 2018-12-20 | 2019-03-12 | 欧基（上海）环保科技有限公司 | A kind of magnetic separating apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING GENERAL MUNICIPAL ENGINEERING DESIGN + RES Free format text: FORMER NAME: BEIJING MUNICIPAL ENGINEERING DESIGN RESEARCH CENTRAL INST. |
|
| CP03 | Change of name, title or address |
Address after: 100082 Beijing, Xizhimen, North Street, building 32, No., building 3 Patentee after: BEIJING GENERAL MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE CO., LTD. Patentee after: Beijing Municipal Engineering Design and Research Institute Address before: 100078, building 32, No. 3 North Main Street, Haidian District, Beijing, Xizhimen Patentee before: Beijing General Municipal Engineering Design & Research Institute Patentee before: Beijing Municipal Engineering Design and Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |