CN108751643A - Clarifier sludge processing method - Google Patents
Clarifier sludge processing method Download PDFInfo
- Publication number
- CN108751643A CN108751643A CN201810505960.1A CN201810505960A CN108751643A CN 108751643 A CN108751643 A CN 108751643A CN 201810505960 A CN201810505960 A CN 201810505960A CN 108751643 A CN108751643 A CN 108751643A
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- China
- Prior art keywords
- sludge
- processing method
- clarifier
- lift device
- air
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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
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
Abstract
The present invention relates to a kind of clarifier sludge processing method, the bottom of sedimentation basin is equipped with air-lift device, and air-lift device connects reflux line, and sludge progress aerobic sigestion, anaerobic digestion or press filtration can be compared according to the sludge settling of sedimentation basin and is operated, specific method is：When sludge settling ratio is less than 30%, aerobic sigestion is carried out；When sludge settling ratio is 30~50%, anaerobic digestion is carried out；When sludge settling ratio is more than 50%, press filtration operation is carried out；Wherein anaerobic digestion is and then to enter anaerobic tower realization by hydrolysis acidification pool by the way that the sludge in sedimentation basin is back to hydrolysis acidification pool through air-lift device and reflux line.The clarifier sludge processing method of the present invention, at low cost, efficiency of sludge treatment is high, while sludge can also generate biogas in anaerobic tower progress anaerobic reaction, energy-saving and environment-friendly, there is fabulous application value.
Description
Technical field
The invention belongs to sewage treatment fields, are related to a kind of clarifier sludge processing method.
Background technology
With the rapid development of industry and being continuously increased for urban population so that the discharge capacity of municipal sewage unprecedentedly increases
Add, during the operation of the sewage treatment process, it is poisonous and harmful that the sludge that technique generates can contain a large amount of heavy metal or germ etc.
Substance, it is therefore necessary to innoxious, minimizing and stabilized processing are carried out to sludge, and properly disposed, in order to avoid environment is made
At pollution.
The processing method of sludge is mainly at this stage：Entered by form of flowing automatically after sludge and sewage mixing in oxidation pond
Sedimentation basin is precipitated in sedimentation basin, and supernatant overflow to middle pond carries out reuse, and the sludge to precipitate is in sedimentation basin
Sludge lifting is back to oxidation pond or sludge-tank by bottom by air-lift device and reflux line.When sludge settling ratio is less than or equal to
When 30%, the sludge in sedimentation basin is back to through air-lift device and reflux line in oxidation pond and carries out aerobic sigestion；Work as sludge
Settling ratio be more than 30% when, sludge can be back to sludge-tank and be precipitated, be then turned on filter press carry out press filtration operation, press filtration
Minimizings, stabilisation or the harmless treatments such as the sludge generated afterwards concentrated, is quenched, dehydration, stablize, desiccation or burning, separately
Outside, since sludge belongs to dangerous waste, sludge need to entrust qualified dangerous waste processing unit to be handled, thus the above method is for dirt
The processing cost of mud is excessively high, relatively low for the treatment effeciency of sludge, limits its further popularization and application.
Therefore, clarifier sludge processing method a kind of at low cost and efficient is studied to have a very important significance.
Invention content
The purpose of the invention is to overcome the problems, such as that Treatment of Sludge existing in the prior art is of high cost and efficiency is low, carry
Clarifier sludge processing method a kind of at low cost and efficient is supplied.The present invention adds aerobic processing mode using anaerobism,
Clarifier sludge is reflowable to hydrolysis acidification pool in processing procedure, is again introduced into anaerobic tower after being acidified again, can not only carry
The anaerobic digestion effect of high sludge and reduction sludge outward transport, reduce cost, improve efficiency of sludge treatment, while sludge is in anaerobic tower
Biogas can also be generated by carrying out anaerobic reaction, energy-saving and environment-friendly, there is fabulous application value.
In order to achieve the above object, the technical solution adopted by the present invention is：
Clarifier sludge processing method, when the sludge settling ratio of sedimentation basin in a certain range when to sludge carry out anaerobism disappear
Change.The measurement method of settling ratio is：The water in 100mL sedimentation basins is taken, is put into 200mL graduated cylinders and stands 30min, is seen after 30min
Examine the percent by volume that the mud to settle down after mud-water separation accounts for total 100mL water.Anaerobic digestion be organic matter under anaerobic
Resolve into the process of methane and carbon dioxide.
As preferred technical solution：
Clarifier sludge processing method as described above, described a certain range are 30~50%.
Clarifier sludge processing method as described above carries out aerobic disappear when sludge settling ratio is less than 30% to sludge
Change, aerobic sigestion is the process that aerobic bacteria decomposes organic matter under conditions of aeration；When sludge settling ratio is more than 50%,
Press filtration operation is carried out to sludge.Press filtration is carried out to muddy water using filter press in press filtration operation, the mud after press filtration and water separation, then
Mud is collected and is uniformly processed.During press filtration operates, need to expend a large amount of manpower and materials, while handling pressure
Filtering out the sludge come needs relevant third party to be uniformly processed, and expends higher funds.Compared with prior art, of the invention
In need not carry out press filtration operation when sludge settling ratio is 30~50%, considerably reduce the outer freight volume of sludge, simultaneously because
Using anaerobism plus aerobic processing mode, efficiency of sludge treatment is significantly improved relative to single Aerobic Process for Treatment mode,
The outer freight volume of sludge is further reduced, the processing funds of sludge have been saved while saving manpower and materials.
The bottom of clarifier sludge processing method as described above, the sedimentation basin is equipped with air-lift device, and air-lift device connects
Connect reflux line.
Clarifier sludge processing method as described above, the aerobic sigestion be by by the sludge in sedimentation basin through air lift
Device and reflux line are back to be realized in oxidation pond.
Clarifier sludge processing method as described above, the anaerobic digestion be by by the sludge in sedimentation basin through air lift
Device and reflux line are back to hydrolysis acidification pool, and then enter anaerobic tower realization by hydrolysis acidification pool.It can not only be carried
The anaerobic digestion effect of high sludge and reduction sludge outward transport, while sludge can also generate natural pond in anaerobic tower progress anaerobic reaction
Gas, it is energy-saving and environment-friendly.Hydrolysis acidification pool can be integrated the larger tank of product, and it is anti-that hydrolysis and acidification etc. occur inside pond
It answers, and the water inlet of hydrolysis acidification pool sewage its dichromate oxidizability (CODcr) higher compared with returned sludge, therefore sludge returns
It flow in hydrolytic tank and follows Treatment of Sludge, without formulating separately returned sludge processing time.
Clarifier sludge processing method as described above, the sludge enter after hydrolysis acidification pool at once with hydrolysis acidification pool
In sewage enter anaerobic tower.It is mixed into anaerobic tower with sewage after progress acidification reaction after sludge arrival hydrolytic tank, is detested
Oxygen reacts, and generates biogas, and the biogas of generation can be applied to the use of generator, has both saved the energy or has reached the mesh of environmental protection
's.
The waste water of clarifier sludge processing method as described above, the anaerobic tower discharge enters oxidation after mixing pit
Pond.Anaerobic tower water outlet enters the component part that mixing pit is integrated artistic flow, and its purpose is to further reduce water body
CODcr values, mitigate oxidation pond in aerobic reaction load, keep the final effect of sewage disposal more preferable.
The waste water of clarifier sludge processing method as described above, the oxidation pond discharge enters sedimentation basin.Waste water enters
The CODcr of oxidation pond is generally 500mg/L, after entering oxidation pond, is degraded to it by aerobic bacteria, makes waste water COD cr
It is reduced to≤60mg/L, to reach the processing standard of waste water.
Clarifier sludge processing method as described above, the press filtration operation are by the sludge in sedimentation basin through air-lift device
After being back to sludge-tank with reflux line, then it is promoted to by sludge-tank diaphragm pump and is carried out after filter press.Advantageous effect：
A kind of clarifier sludge processing method of the present invention, using anaerobism plus aerobic processing mode, according to sedimentation basin
Sludge settling compares sludge and carries out aerobic sigestion, anaerobic digestion or press filtration operation, and clarifier sludge is reflowable in processing procedure
To hydrolysis acidification pool, it is again introduced into anaerobic tower after being acidified again, anaerobic digestion effect and the reduction of sludge can not only be improved
Sludge is transported outward, and cost is reduced, and improves efficiency of sludge treatment, while sludge can also generate natural pond in anaerobic tower progress anaerobic reaction
Gas, it is energy-saving and environment-friendly, have a wide range of application.
Description of the drawings
Fig. 1 is the sludge treatment equipment figure of the present invention.
Specific implementation mode
The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed range.
Embodiment 1
The bottom of a kind of clarifier sludge processing method, sedimentation basin is equipped with air-lift device, and air-lift device connects reflux line,
Its processing unit is as shown in Figure 1, specific method is：When sludge settling ratio is less than 30%, by the sludge in sedimentation basin through air lift
Device and reflux line, which are back in oxidation pond, carries out aerobic sigestion, and then the waste water of oxidation pond discharge enters sedimentation basin；Work as dirt
When mud settling ratio is 30~50%, the sludge in sedimentation basin is back to hydrolysis acidification pool through air-lift device and reflux line, so
Enter anaerobic tower with the sewage in hydrolysis acidification pool at once afterwards and carry out anaerobic digestion, the waste water of last anaerobic tower discharge is by mixing
Enter oxidation pond behind pond, the waste water of oxidation pond discharge enters sedimentation basin；It, will be in sedimentation basin when sludge settling ratio is more than 50%
Sludge carries out press filtration after air-lift device and reflux line are back to sludge-tank, then after being promoted to filter press by sludge-tank diaphragm pump
Operation.
The requirement for meeting GB/T 24188-2009 standards using the sludge that the above method is handled, without transferring to third
Fang Jinhang processing, thus production cost is significantly reduced, and sludge flows back into aerobic tank and anaerobic pond processing again, improves
Treatment effeciency has saved big energy, and significant contribution, thus great application prospect are also made that environmental protection.
Claims (10)
1. clarifier sludge processing method, it is characterized in that：When the sludge settling ratio of sedimentation basin in a certain range when to sludge into
Row anaerobic digestion.
2. clarifier sludge processing method according to claim 1, which is characterized in that described a certain range be 30~
50%.
3. clarifier sludge processing method according to claim 2, which is characterized in that when sludge settling ratio is less than 30%
When, aerobic sigestion is carried out to sludge；When sludge settling ratio is more than 50%, press filtration operation is carried out to sludge.
4. clarifier sludge processing method according to claim 3, which is characterized in that the bottom of the sedimentation basin is equipped with gas
Device is carried, air-lift device connects reflux line.
5. clarifier sludge processing method according to claim 4, which is characterized in that the aerobic sigestion is by that will sink
Sludge in the pond of shallow lake is back to through air-lift device and reflux line to be realized in oxidation pond.
6. clarifier sludge processing method according to claim 4, which is characterized in that the anaerobic digestion is by that will sink
Sludge in the pond of shallow lake is back to hydrolysis acidification pool through air-lift device and reflux line, and then enters anaerobic tower reality by hydrolysis acidification pool
Existing.
7. clarifier sludge processing method according to claim 6, which is characterized in that the sludge enters hydrolysis acidification pool
Enter anaerobic tower with the sewage in hydrolysis acidification pool at once afterwards.
8. clarifier sludge processing method according to claim 7, which is characterized in that the waste water warp of the anaerobic tower discharge
Enter oxidation pond after crossing mixing pit.
9. the clarifier sludge processing method according to claim 5 or 8, which is characterized in that the oxidation pond discharge is given up
Water enters sedimentation basin.
10. clarifier sludge processing method according to claim 4, which is characterized in that the press filtration operation is will to precipitate
Sludge in pond is after air-lift device and reflux line are back to sludge-tank, then by sludge-tank diaphragm pump to be promoted to filter press laggard
Capable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810505960.1A CN108751643B (en) | 2018-05-24 | 2018-05-24 | Sedimentation tank sludge treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810505960.1A CN108751643B (en) | 2018-05-24 | 2018-05-24 | Sedimentation tank sludge treatment method |
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| Publication Number | Publication Date |
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| CN108751643A true CN108751643A (en) | 2018-11-06 |
| CN108751643B CN108751643B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810505960.1A Active CN108751643B (en) | 2018-05-24 | 2018-05-24 | Sedimentation tank sludge treatment method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357815A (en) * | 2008-08-14 | 2009-02-04 | 北京环利科环境工程技术有限公司 | EH-BFB biochemical denitrification dephosphorization technique |
| CN104591489A (en) * | 2015-01-07 | 2015-05-06 | 光大水务(济南)有限公司 | Sewage treatment system and sewage treatment method |
| CN105800894A (en) * | 2016-05-27 | 2016-07-27 | 中山市佰明环保科技有限公司 | Sludge treatment method |
| CN105923909A (en) * | 2016-06-07 | 2016-09-07 | 江苏方洋水务有限公司 | Treatment method of petrochemical wastewater |
| AU2016390808A1 (en) * | 2016-05-26 | 2017-12-21 | S. G. T. -Sustainable Green Technologies Ltd | Process and facility for the treatment of livestock waste |
-
2018
- 2018-05-24 CN CN201810505960.1A patent/CN108751643B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357815A (en) * | 2008-08-14 | 2009-02-04 | 北京环利科环境工程技术有限公司 | EH-BFB biochemical denitrification dephosphorization technique |
| CN104591489A (en) * | 2015-01-07 | 2015-05-06 | 光大水务(济南)有限公司 | Sewage treatment system and sewage treatment method |
| AU2016390808A1 (en) * | 2016-05-26 | 2017-12-21 | S. G. T. -Sustainable Green Technologies Ltd | Process and facility for the treatment of livestock waste |
| CN105800894A (en) * | 2016-05-27 | 2016-07-27 | 中山市佰明环保科技有限公司 | Sludge treatment method |
| CN105923909A (en) * | 2016-06-07 | 2016-09-07 | 江苏方洋水务有限公司 | Treatment method of petrochemical wastewater |
Non-Patent Citations (4)
| Title |
|---|
| 张斌: "‘污泥减量工艺OSA系统影响因素研究’", 《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅰ辑》 * |
| 林海等: "《市政污水处理技术的理论与实践》", 31 December 2017, 中国环境出版社 * |
| 王仲旭等: "《污水治理技术与运行管理》", 31 January 2015, 中国环境科学出版社 * |
| 马志伟: "‘城镇污水处理厂氧化沟工艺运行中的污泥回流调节控制’", 《市政技术》 * |
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Address after: 115009 xianrendao energy and chemical industry zone, Yingkou City, Liaoning Province Patentee after: Kanghui New Material Technology Co.,Ltd. Address before: 115009 xianrendao energy and chemical industry zone, Yingkou City, Liaoning Province Patentee before: YINGKOU KANGHUI PETROCHEMICAL Co.,Ltd. |