CN106219740B - A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge - Google Patents
A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge Download PDFInfo
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- CN106219740B CN106219740B CN201610655828.XA CN201610655828A CN106219740B CN 106219740 B CN106219740 B CN 106219740B CN 201610655828 A CN201610655828 A CN 201610655828A CN 106219740 B CN106219740 B CN 106219740B
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- reactor
- sludge
- dephosphorization
- film
- alum sludge
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- 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
Abstract
A method of film blocking and dephosphorization in MBR reactor being reduced using alum sludge, described method includes following steps: taking alum sludge；It takes normal operation but generates the submerged MBRs reactor of film stopping state；Alum sludge is added in reactor by the additive amount of 100mg/L~1000mg/L, after stable operation 10~30 days, aerobic particle mud is obtained in reactor, film blocks reduction, membrane flux increases and reaches phosphor-removing effect.The present invention utilizes waterworks solid waste, using residue flocculation and electrodeless granule, puts into aeration tank or reactor; aerobic sludge granulation in reactor is promoted to reduce sludge wadding body; and increase hydraulic shear and reduce film surface pollution, increase membrane flux, while reaching dephosphorization.
Description
Technical field
The present invention relates to a kind of methods for reducing film blocking and dephosphorization in MBR reactor using alum sludge.
Technical background
With the continuous development of wastewater treatment in China technology, the new type water that activated sludge process and membrane separation technique are combined
Processing technique MBR technique is just received more and more attention and is studied.MBR technique is mainly by membrane separation assemblies and bioreactor
Two parts composition is broadly divided into aeration film-bioreactor, extraction film-bioreactor and solid-liquid separating type film-biological respinse
Device is divided into separated type, integral type and combined type three basic forms of it according to the combining form of membrane module and bioreactor.
MBR technique has that stable effluent quality, surplus sludge volume are few, point realize mud-water separation, microbial barrier, and occupied area is small, dimension
The features such as simple is protected, can be minimized, modularization.But because of technical restriction and the own characteristic of biological treatment at this stage, UF membrane
Easily there is fouling membrane to cause the blocking of MBR in cell surface growth microorganism easy to attach, influences membrane flux and the place of MBR
Manage efficiency.
Priority control index one of of the phosphorus as sewage qualified discharge, is the difficult point of various water treatment technologies, existing removes
Phosphorus technology is mainly materialization phosphorus removal and biological phosphate-eliminating, and materialization phosphorus removal needs to add medicament and promote cost of water treatment；Biological phosphate-eliminating
It is very popular due to its inexpensive characteristic, but technically have certain difficulty.Its cardinal principle of biological phosphate-eliminating is poly-
Phosphorus bacterium releases phosphorus under anaerobic and largely inhales phosphorus under aerobic condition, this needs the alternate condition of certain anaerobic-aerobic.By
In the characteristic of MBR technique, it is difficult to accomplish biological phosphate-eliminating, the enrichment of phosphorus is also easy to produce in reactor, it is therefore desirable to additional all kinds of dephosphorization
Medicament achievees the effect that dephosphorization, causes the increase of processing cost.
Summary of the invention
For overcome the problems, such as in existing MBR reactor film blocking and cannot effective biological phosphate-eliminating, the present invention provide it is a kind of it is simple,
The economical and effective method for reducing film blocking and dephosphorization in MBR reactor using alum sludge.
The following technical solution is provided in order to solve foregoing problems:
A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge,
Include the following steps:
(1) alum sludge is taken；
(2) it takes normal operation but generates the submerged MBRs reactor of film stopping state；
(3) reactor is added by the additive amount of 100mg/L~1000mg/L in alum sludge described in step (1)
In, after stable operation 10~30 days, aerobic particle mud is obtained in reactor, film blocks reduction, membrane flux increases and reaches
Phosphor-removing effect.
Further, in the step (1), waterworks factory sludge is taken.
Further, in the step (3), alum sludge addition manner is continuity addition.
Technical concept of the invention are as follows: promote aerobic sludge granulation using alum sludge, reduce floc sludge, film
Blocking source；The effect of chemical dephosphorization is played using flocculant remaining in alum sludge, and is the particle of aerobic sludge
Change and coagulating agent is provided；Using inorganic particle a large amount of in alum sludge, nucleus on the one hand is provided for aerobic sludge granulation,
On the other hand strengthen hydraulic shear, physics is carried out to the film of pollution and is washed away, reduce film blocking.Simultaneously also by alum sludge into
Row recycling treatment obtains certain economic benefit.
The beneficial effects are mainly reflected as follows:
(1) nuclei of condensation mechanism is utilized, alum sludge is directly thrown into MBR reactor, is contained using it a large amount of
Inorganic particle promotes aerobic sludge granulation as nucleus.
(2) waste resource recovery, using promoting aerobic particle mud while flocculant dephosphorization in alum sludge
It is formed.
(3) easy to operate, without various pretreatments, directly waterworks factory sludge is launched, simple process, cost
It is low.
(4) effectively slow down the blocking of MBR film, compare ordinary activated sludge after granulating, extend film and utilize the time.
Specific embodiment
The present invention is described further combined with specific embodiments below, but protection scope of the present invention is not limited in
This.
Example 1
A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge, included the following steps:
(1) alum sludge is taken；
(2) it takes normal operation but generates the submerged MBRs reactor of film stopping state to a certain degree, reactor effective volume
21L, membrane flux 35L/m2/ h, TP are that 10mg/L is persistently aerated, and are intake to configure sewage；
(3) alum sludge described in step (1) is added at one time reactor by the additive amount of daily 100mg/L
In, after stable operation 30 days, aerobic particle mud is obtained in reactor, film blocks reduction, membrane flux becomes 40L/m2/ h, instead
Answering TP in device is 1mg/L.
Example 2
A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge, included the following steps:
(1) alum sludge is taken；
(2) it takes normal operation but generates the submerged MBRs reactor of film blocking to a certain degree, reactor effective volume 21L,
Membrane flux 30L/m2/ h, TP are that 10mg/L is persistently aerated, and are intake to configure sewage；
(3) alum sludge described in step (1) is added at one time reactor by the additive amount of daily 500mg/L
In, after stable operation 14 days, aerobic particle mud is obtained in reactor, film blocks reduction, membrane flux becomes 45L/m2/ h, instead
Answering TP in device is 0.8mg/L.
Example 3
A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge, included the following steps:
(1) alum sludge is taken；
(2) it takes normal operation but generates the submerged MBRs reactor of film blocking to a certain degree, reactor effective volume 21L,
Membrane flux 35L/m2/ h, TP are that 10mg/L is persistently aerated, and are intake to configure sewage；
(3) alum sludge described in step (1) is added at one time reaction by the additive amount of daily 1000mg/L
In device, after stable operation 10 days, aerobic particle mud is obtained in reactor, film blocks reduction, membrane flux becomes 48L/m2/ h,
TP is 0.3mg/L in reactor.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification, the present invention can be carried out to embodiment in the case where being detached from the principle of the present invention and objective
Range be defined by the claims and their equivalents.
Claims (3)
1. a kind of method for reducing film blocking and dephosphorization in MBR reactor using alum sludge, it is characterised in that: the side
Method includes the following steps:
(1) alum sludge is taken；
(2) it takes normal operation but generates the submerged MBRs reactor of film stopping state；
(3) alum sludge described in step (1) is added in reactor by the additive amount of 100mg/L~1000mg/L,
After stable operation 10~30 days, aerobic particle mud is obtained in reactor, film blocks reduction, membrane flux increases and reaches dephosphorization
Effect.
2. a kind of method that film blocking and dephosphorization in MBR reactor are reduced using alum sludge as described in claim 1,
It is characterized in that: in the step (1), taking waterworks factory sludge.
3. a kind of side for reducing film blocking and dephosphorization in MBR reactor using alum sludge as claimed in claim 1 or 2
Method, it is characterised in that: in the step (3), alum sludge addition manner is continuity addition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610655828.XA CN106219740B (en) | 2016-08-11 | 2016-08-11 | A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655828.XA CN106219740B (en) | 2016-08-11 | 2016-08-11 | A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge |
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| Publication Number | Publication Date |
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| CN106219740A CN106219740A (en) | 2016-12-14 |
| CN106219740B true CN106219740B (en) | 2019-07-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974439A (en) * | 2006-12-07 | 2007-06-06 | 江南大学 | Method of inhibiting membrane contamination of membrane bioreactor |
| CN101905918A (en) * | 2009-06-04 | 2010-12-08 | 中国科学院生态环境研究中心 | Method for controlling membrane pollution in membrane bioreactor |
| CN102229460A (en) * | 2011-05-27 | 2011-11-02 | 浙江工业大学 | Method for inducing aerobic sludge to granulate by using sludge micropowder |
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2016
- 2016-08-11 CN CN201610655828.XA patent/CN106219740B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974439A (en) * | 2006-12-07 | 2007-06-06 | 江南大学 | Method of inhibiting membrane contamination of membrane bioreactor |
| CN101905918A (en) * | 2009-06-04 | 2010-12-08 | 中国科学院生态环境研究中心 | Method for controlling membrane pollution in membrane bioreactor |
| CN102229460A (en) * | 2011-05-27 | 2011-11-02 | 浙江工业大学 | Method for inducing aerobic sludge to granulate by using sludge micropowder |
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| CN106219740A (en) | 2016-12-14 |
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