CN106698814A - Treatment method and treatment device for wastewater - Google Patents
Treatment method and treatment device for wastewater Download PDFInfo
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- CN106698814A CN106698814A CN201611091660.0A CN201611091660A CN106698814A CN 106698814 A CN106698814 A CN 106698814A CN 201611091660 A CN201611091660 A CN 201611091660A CN 106698814 A CN106698814 A CN 106698814A
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- Prior art keywords
- waste water
- pond
- stage
- film
- sediment
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a treatment method and a treatment device for wastewater. The treatment method comprises the following stages: a hydrolytic acidification stage, an oxidation treatment stage, a precipitation treatment stage and a film treatment stage. Compared with the prior art, the treatment method has the following characteristics: the oxidation treatment stage and the film treatment stage are separately performed; meanwhile, the precipitation treatment stage is arranged before the film treatment stage; thus, wastewater from the oxidation treatment stage undergoes precipitation treatment and then enters the film treatment stage. According to the invention, precipitable substances like activated sludge in the wastewater can be precipitated in the precipitation treatment stage, so precipitable substances in the wastewater entering the film treatment stage are reduced; pollution to the film caused by precipitate is relatively reduced; thus, the period of film cleaning can be prolonged, and the maintenance work of workers is lightened.
Description
Technical field
The present invention relates to wastewater processing technology, more particularly, to a kind of method of wastewater treatment and processing unit.
Background technology
Continuous improvement with China to environmental requirement, to the discharge water quality requirement of waste water also more and more higher, this will be
Production waste water must be processed before discharge production waste water.
In existing wastewater processing technology, the processing method of usual waste water is divided into following several stages：Anaerobic reaction rank
Section, contact oxidation stage, wherein, in the anaerobic reaction stage, using the anaerobic bacteria in anaerobic pond by big point in waste water
Sub- organic matter resolves into small organic molecule, is single treatment water by the water outlet in anaerobic reaction stage；In contact oxidation
In the stage, the small organic molecule in single treatment water is further decomposed using the aerobic bacteria in Aerobic Pond, while aerobic
The stage of reaction is dammed by the membrane separation plant for setting to active mud.After by these steps, draining has reached
The discharge standard of country, can be discharged.
In order to ensure that the small organic molecule in single treatment water is adequately broken, it is desirable to the activated sludge in Aerobic Pond
Content it is high, it is high with the content for ensuring aerobic bacteria, but the activated sludge of high content can be opposite to the UF membrane in oxidation pond
The film of device is polluted, in order to ensure the water quality of Aerobic Pond water outlet, it is necessary to which film is cleaned.Because the content of active mud
It is high, it is necessary to frequently film is cleaned, the maintenance work of staff has been aggravated.
Therefore, a kind of method of wastewater treatment how is designed, the cleaning frequency of film can be extended, mitigate the maintenance of staff
Work is the problem that those skilled in the art need to solve.
The content of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of cleaning frequency that can extend film is proposed, mitigate work
Make the method for wastewater treatment and processing unit of the maintenance work of personnel.
To reach above-mentioned technical purpose, technical scheme provides a kind of method of wastewater treatment, the wastewater treatment
Method is comprised the following steps：
S1, hydrolysis acidification：Waste water is collected, waste water the acidification reaction that is hydrolyzed in anaerobic pond is imported into, by waste water
In larger molecular organicses resolve into small organic molecule；
S2, oxidation processes：The waste water that will be processed by hydrolysis acidification is imported in Aerobic Pond and carries out oxidation reaction, by small molecule
Oxidation operation is decomposed；
S3, precipitation process：Precipitated being imported by the waste water of oxidation processes in sedimentation basin, made the suspension in waste water
It is precipitated to bottom of pond；
S4, film process：The supernatant of waste water after precipitation is imported by sedimentation basin carries out membrane filtration in film process pond, final
To the waste water of emission compliance.
Preferably, the waste water is 10-30h in the residence time in the hydrolysis acidification stage described in step S1.
Preferably, in the hydrolysis acidification stage described in step S1, activated carbon is added in the anaerobic pond, in waste water
Larger molecular organicses are adsorbed.
Preferably, in the precipitation process stage described in step S3, the sediment of sedimentation basin bottom deposit can be back to be detested
Oxygen continues the acidification reaction that is hydrolyzed in pond.
Preferably, in the precipitation process stage described in step S3, the sediment of sedimentation basin bottom deposit can return to most intimate friend
Oxygen proceeds oxidation reaction in pond.
A kind of Waste Water Treatment, the Waste Water Treatment include be sequentially connected anaerobic pond, Aerobic Pond, sedimentation basin,
Filtering ponds；Wherein, the bottom of the sedimentation basin is provided with sludge and pumps pump, and the sludge pumps pump connection sediment return flow line,
The backflow end of the sediment return flow line is connected to the anaerobic pond or Aerobic Pond.
Preferably, active charcoal is added in the anaerobic pond.
Method of wastewater treatment of the present invention and processing unit, its compared with prior art, by oxidation processes stage and film
Processing stage is separately carried out, and the precipitation process stage was provided with before the film process stage, is arranged such, and is made via oxidation processes
The waste water in stage is carried out after precipitation process, enters back into the film process stage.In the precipitation process stage, the active mud in waste water etc. can
Sediment can be precipitated, then reduce the precipitable thing into film process stage waste water, the pollution that sediment is caused to film
Also relative reduction, and then can extend the cleaning cycle of film, mitigate the maintenance work of staff.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The embodiment provides a kind of method of wastewater treatment, the method for wastewater treatment is comprised the following steps：
S1, hydrolysis acidification：Waste water is collected, waste water is imported and is hydrolyzed acidification reaction in anaerobic pond, using detesting
Larger molecular organicses in waste water are resolved into small organic molecule by the anaerobic bacteria in oxygen pond；Specifically, the waste water is in step
The residence time in the hydrolysis acidification stage described in rapid S1 is 10-30h, preferably more than 12h；
S2, oxidation processes：The waste water that will be processed by hydrolysis acidification is imported in Aerobic Pond and carries out oxidation reaction, using aerobic
Small organic molecule is carried out oxidation Decomposition by bacterium；
S3, precipitation process：Precipitated being imported by the waste water of oxidation processes in sedimentation basin, made the suspension in waste water
It is precipitated to bottom of pond；
S4, film process：The supernatant of waste water after precipitation is imported in film process pond by sedimentation basin carries out membrane filtration, makes waste water
Further purified, finally given the waste water of emission compliance.
Compared with prior art, the oxidation processes stage is separately carried out with the film process stage, and before the film process stage
There is provided in the precipitation process stage, be arranged such, after making to carry out precipitation process via the waste water in oxidation processes stage, film is entered back into
Processing stage.In the precipitation process stage, the precipitable thing such as the active mud in waste water can be precipitated, then reduce and enter film process
Precipitable thing in stage waste water, the pollution that sediment is caused to film also relative reduction, and then can prolong the cleaning cycle of film
It is long, mitigate the maintenance work of staff.
In order to ensure the available space of sedimentation basin, the sediment in the sedimentation basin is discharged via sludge pump, will be heavy
Sediment discharge in the pond of shallow lake, it is to avoid because sediment is excessively piled up and causes the available space of sedimentation basin to reduce in pond, while
Be also possible to prevent due to sediment amount it is excessive after, cause sedimentation effect to reduce, the effluent quality of sedimentation basin is deteriorated.
Staff monthly carries out primary sedimentation discharge according to actual conditions, when sediment is discharged, precipitation process
Stage is persistently carried out.It is of course also possible to according to actual conditions, the cycle of extension or shortening sediment discharge handling process,
Such as each two month is carried out once per two weeks.
Further, the sediment that can be discharged the sedimentation basin sends into anaerobic pond, make organic matter in sediment after
The continuous acidification reaction that is hydrolyzed, or organic matter will be made to proceed oxidation reaction in sediment feeding Aerobic Pond, can so make
The carrying out of organic matter in sediment in anaerobic pond or Aerobic Pond again is decomposed, such that it is able to improve anaerobic pond or Aerobic Pond
Biochemical effects.The active mud in sediment contains microorganism simultaneously, therefore the backflow of sediment also can overcome the disadvantages that anaerobic pond or aerobic
The active mud loss in pond, increases the micro organism quantity of anaerobic pond or Aerobic Pond.
To increase the contact area of organic matter and anaerobic bacteria, activated carbon can also be added in the anaerobic pond, utilized
Larger molecular organicses in waste water are adsorbed by the suction-operated of activated carbon, the contact surface of increase organic matter and anaerobic bacteria
Product, is conducive to the decomposition of organic matter, reduces Organic substance in water content.
Simultaneously adsorb organic matter activated carbon can with waste water enter the oxidation processes stage, the precipitation process stage and
The film process stage.In the oxidation processes stage, due to the suction-operated of activated carbon, it is easy to aerobic bacteria to connect with small organic molecule
Touch so that small organic molecule is fully decomposed；In the precipitation process stage, due to the use of activated carbon, microorganism, activated carbon
And sediment forms particle, settling velocity can be accelerated, improve the deposition efficiency of sedimentation basin；In the film process stage, film can be with
Retention activated carbon, and the color of the suction-operated removing waste water of activated carbon is utilized, improve the water quality of draining.And be tightly held by activated carbon
Undecomposed organic matter sedimentation basin precipitation after, be re-introduced into anaerobic pond or Aerobic Pond through sediment reflux technique, make activity
The organic matter of charcoal absorption is further decomposed.Preferably, activated carbon is powdered active carbon, with same volume other forms
Activated carbon is compared, and using powdered active carbon, can expand the contact area with organic matter, is easy to the absorption to organic matter, is had
Beneficial to microorganism decomposing organic matter.
A kind of Waste Water Treatment, the Waste Water Treatment include be sequentially connected anaerobic pond, Aerobic Pond, sedimentation basin,
Filtering ponds；Wherein, active charcoal is added in the anaerobic pond, the bottom of the sedimentation basin is provided with sludge and pumps pump, the sludge
Pump connection sediment return flow line is pumped, the backflow end of the sediment return flow line is connected to the anaerobic pond or Aerobic Pond.
When the sediment is back in anaerobic pond by sediment return flow line, detesting the organic matter in sediment
Hydrolysis acidification reaction is re-started in oxygen pond, such that it is able to improve the biochemical effects of anaerobic pond.When the sediment is by precipitation
When thing return flow line is back in Aerobic Pond, make the organic matter in sediment that oxidation reaction is re-started in Aerobic Pond, so that
The biochemical effects of Aerobic Pond can be improved, while also can overcome the disadvantages that the active mud loss of anaerobic pond or Aerobic Pond, increase anaerobic pond or
The micro organism quantity of Aerobic Pond.
Method of wastewater treatment of the present invention and processing unit, its compared with prior art, by oxidation processes stage and film
Processing stage is separately carried out, and the precipitation process stage was provided with before the film process stage, is arranged such, and is made via oxidation processes
The waste water in stage is carried out after precipitation process, enters back into the film process stage.In the precipitation process stage, the active mud in waste water etc. can
Sediment can be precipitated, then reduce the precipitable thing into film process stage waste water, the pollution that sediment is caused to film
Also relative reduction, and then can extend the cleaning cycle of film, mitigate the maintenance work of staff.
The specific embodiment of present invention described above, is not intended to limit the scope of the present invention..Any basis
Various other corresponding change and deformation that technology design of the invention is made, should be included in the guarantor of the claims in the present invention
In the range of shield.
Claims (7)
1. a kind of method of wastewater treatment, it is characterised in that the method for wastewater treatment is comprised the following steps：
S1, hydrolysis acidification：Waste water is collected, waste water the acidification reaction that is hydrolyzed in anaerobic pond is imported into, by waste water
Larger molecular organicses resolve into small organic molecule；
S2, oxidation processes：The waste water that will be processed by hydrolysis acidification is imported in Aerobic Pond and carries out oxidation reaction, and small molecule is organic
Thing oxidation Decomposition；
S3, precipitation process：Precipitated being imported by the waste water of oxidation processes in sedimentation basin, precipitate the suspension in waste water
To bottom of pond；
S4, film process：The supernatant of waste water after precipitation is imported in film process pond by sedimentation basin carries out membrane filtration, the row of finally giving
Unconventional and unrestrained target waste water.
2. method of wastewater treatment according to claim 1, it is characterised in that the waste water is in the hydrolysis acidification described in step S1
The residence time in stage is 10-30h.
3. method of wastewater treatment according to claim 1, it is characterised in that in the hydrolysis acidification stage described in step S1,
Activated carbon is added in the anaerobic pond, the larger molecular organicses in waste water are adsorbed.
4. method of wastewater treatment according to claim 3, it is characterised in that in the precipitation process stage described in step S3, sink
The sediment of shallow lake pond bottom deposit continues the acidification reaction that is hydrolyzed in being back to anaerobic pond.
5. method of wastewater treatment according to claim 3, it is characterised in that in the precipitation process stage described in step S3, sink
The sediment of shallow lake pond bottom deposit proceeds oxidation reaction in being back to Aerobic Pond.
6. a kind of Waste Water Treatment, it is characterised in that anaerobic pond that the Waste Water Treatment includes being sequentially connected, aerobic
Pond, sedimentation basin, filtering ponds；Wherein, the bottom of the sedimentation basin is provided with sludge and pumps pump, and the sludge pumps pump connection sediment
Return flow line, the backflow end of the sediment return flow line is connected to the anaerobic pond or Aerobic Pond.
7. Waste Water Treatment according to claim 6, it is characterised in that active charcoal is added in the anaerobic pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091660.0A CN106698814A (en) | 2016-12-01 | 2016-12-01 | Treatment method and treatment device for wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091660.0A CN106698814A (en) | 2016-12-01 | 2016-12-01 | Treatment method and treatment device for wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106698814A true CN106698814A (en) | 2017-05-24 |
Family
ID=58935347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611091660.0A Pending CN106698814A (en) | 2016-12-01 | 2016-12-01 | Treatment method and treatment device for wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN106698814A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171594A (en) * | 1993-12-21 | 1995-07-11 | Ngk Insulators Ltd | Method and apparatus for denitrifying and dephosphorizing sewage |
| KR20030066271A (en) * | 2002-02-05 | 2003-08-09 | 강용태 | ASAM: Advanced Step Aeration with Media(ASA, SFC-Biofilter) |
| CN101327990A (en) * | 2008-07-18 | 2008-12-24 | 台州盛世环境工程有限公司 | Method for processing sewerage by A/O biological contact oxidation process |
| CN102295390A (en) * | 2011-08-05 | 2011-12-28 | 北京城市排水集团有限责任公司 | Device and method for controlling pollution of MBR membrane |
| CN102874977A (en) * | 2012-09-12 | 2013-01-16 | 杭州富铭环境科技有限公司 | Waste water treatment method |
-
2016
- 2016-12-01 CN CN201611091660.0A patent/CN106698814A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171594A (en) * | 1993-12-21 | 1995-07-11 | Ngk Insulators Ltd | Method and apparatus for denitrifying and dephosphorizing sewage |
| KR20030066271A (en) * | 2002-02-05 | 2003-08-09 | 강용태 | ASAM: Advanced Step Aeration with Media(ASA, SFC-Biofilter) |
| CN101327990A (en) * | 2008-07-18 | 2008-12-24 | 台州盛世环境工程有限公司 | Method for processing sewerage by A/O biological contact oxidation process |
| CN102295390A (en) * | 2011-08-05 | 2011-12-28 | 北京城市排水集团有限责任公司 | Device and method for controlling pollution of MBR membrane |
| CN102874977A (en) * | 2012-09-12 | 2013-01-16 | 杭州富铭环境科技有限公司 | Waste water treatment method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |