CN201240942Y - Membrane bioreactor capable of improving denitrification ability - Google Patents
Membrane bioreactor capable of improving denitrification ability Download PDFInfo
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- CN201240942Y CN201240942Y CNU2008200749956U CN200820074995U CN201240942Y CN 201240942 Y CN201240942 Y CN 201240942Y CN U2008200749956 U CNU2008200749956 U CN U2008200749956U CN 200820074995 U CN200820074995 U CN 200820074995U CN 201240942 Y CN201240942 Y CN 201240942Y
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- denitrification
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Abstract
The utility model discloses a film bioreactor which can improve the denitrification capability; and the film bioreactor comprises a synchronous nitrifying and denitrifying region and a film region, as well as an L-shaped facultative region, a side wall and an anoxic region which is connected with the outer side wall of a transversal part in the L-shaped facultative region; one side wall of the film region is connected with the inner side wall of the L-shaped facultative region; one side wall of the synchronous nitrifying and denitrifying region is connected with one side wall of the film region, and the other side wall is connected with one side wall of the anoxic region and the facultative region; a stirring paddle is respectively arranged in the facultative region and the anoxic region; a film component is arranged in the film region; a water pump is arranged in the anoxic region; a micro aeration pipe is arranged in the synchronous nitrifying and denitrifying region; a syphon tube which is provided with a flowmeter is connected between the synchronous nitrifying and denitrifying region and the facultative region; and overflowing openings are respectively arranged in the synchronous nitrifying and denitrifying region, the film region and the facultative region. Adopting the device can improve the denitrifying ratio, reduce the size of the denitrifying tank, and can save energy.
Description
Technical field
The utility model relates to a kind of reactor, relates in particular to a kind of membrane bioreactor that can improve the denitrogenation ability.
Background technology
(membrane bioreactor MBR) is widely used and payes attention to owing to having numerous advantages, but membrane bioreactor (MBR) makes it remove the scarce capacity of total nitrogen owing to lacking anaerobic environment to membrane bioreactor.In the existing reactors, often an anoxic pond is set at the MBR front end, by reflux pump with MBR aerobic zone mixed-liquor return to the oxygen-starved area, improve the denitrification effect of MBR.The reactor that also has is provided with a preaeration tank between anoxic pond and MBR Aerobic Pond, be used for increasing in advance the dissolved oxygen in the mixed solution, makes the MBR Aerobic Pond keep the dissolved oxygen of whole higher concentration.But the existing reactors operation time tends to occur some defectives, such as: the first, directly with the aerobic zone mixed-liquor return to the oxygen-starved area, the dissolved oxygen of water inlet, oxygen-starved area is higher easily, and anaerobic environment is damaged.The second, with NO in the MBR Aerobic Pond
3 -Denitrification is N
2The time need organism more in the former water as electron donor, therefore in the anoxic section, become denitrifying limiting factor easily as the organism of carbon source, influence the clearance of total nitrogen in the sewage (TN).
Summary of the invention
The purpose of this utility model is to provide a kind of can improve each regional operating mass of reactor, improve organic utilising efficiency in the denitrification process, reduce the required carbon source of denitrification, strengthen denitrification, improve the clearance of total nitrogen, improve effluent quality, and reduce required hydraulic detention time and the denitrification pool volume of denitrification, a kind of membrane bioreactor that can improve the denitrogenation ability of required electric power energy when saving the mud backflow.
A kind of membrane bioreactor that can improve the denitrogenation ability of the present utility model, it comprises and is arranged on intravital synchronous nitration and denitrification district, pond, the film district, it also comprises the facultative district of L-shaped setting, the oxygen-starved area that sidewall links to each other with horizontal position outer side wall during described facultative district is L shaped, the L-shaped inner side-wall in sidewall in described film district and described facultative district links to each other, a sidewall in synchronous nitration and denitrification district links to each other with a sidewall in described film district, another sidewall links to each other with a sidewall in described oxygen-starved area and facultative district, in described facultative district and oxygen-starved area, stirring rake is housed respectively, in described film district, membrane module is housed, in described oxygen-starved area, water pump is housed, in described synchronous nitration and denitrification district, little aeration tube is housed, between described synchronous nitration and denitrification district and facultative district, be connected with the siphon pipe that has under meter, in described synchronous nitration and denitrification district, the film district, facultative district has the overflow port that is provided with at each diagonal lines two ends, district successively from high to low, on described film district and the overflow port that facultative district links to each other plate is housed.
The beneficial effects of the utility model are: first, in the synchronous nitration and denitrification district, the nitrite nitrogen and the nitrate nitrogen that generate can carry out a part of denitrification at this, be back to the oxygen-starved area and can make more complete that denitrification carries out, improve nitrogen removal rate, simultaneously, the synchronous nitration and denitrification reaction also often is accompanied by the short distance nitration reaction, therefore its phegma that flows to the oxygen-starved area can more effectively utilize the carbon source in the former water, improves denitrification efficient.The second, the mixed solution part of oxygen-starved area is refluxed by the synchronous nitration and denitrification district, has reduced denitrifying pressure, has reduced denitrifying hydraulic detention time, has reduced the size in denitrification pond.The 3rd, the overflow port in synchronous nitration and denitrification district, film district and the facultative district can make mixed solution rely on gravity flowage to finish the technical process of design, has saved water pump, has saved the energy.The 4th, the synchronous nitration and denitrification district relies on a siphon pipe to finish to the backflow in facultative district, has saved water pump, has saved the energy.The 5th, facultative district can make the oxygen-starved area keep sufficient anaerobic environment, thereby can improve the clearance of total nitrogen in the sewage (TN).
Description of drawings
Fig. 1 is a kind of axonometric drawing that can improve the membrane bioreactor of denitrogenation ability of the present utility model, wherein, facultative district and oxygen-starved area are had an X-rayed, and synchronous nitration and denitrification district and film district are not had an X-rayed, and oxygen-starved area and synchronous nitration and denitrification district are opened one jiao more clearly to represent parts wherein;
Fig. 2 is the vertical view of reactor shown in Figure 1.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done to describe in detail.
A kind of membrane bioreactor that can improve the denitrogenation ability of the present utility model in conjunction with the accompanying drawings, it comprises and is arranged on pond intravital synchronous nitration and denitrification district C, film district D, it also comprises the facultative district A of L-shaped setting, the oxygen-starved area B that sidewall links to each other with the L shaped horizontal position outer side wall of described facultative district A, the sidewall of described film district D links to each other with the described facultative L-shaped inner side-wall of A of distinguishing, and the sidewall of synchronous nitration and denitrification district C links to each other with the sidewall of described film district D, another sidewall links to each other with the sidewall of described oxygen-starved area B and facultative district A.In described facultative district A and oxygen-starved area B, stirring rake 1 is housed respectively, in described film district D, membrane module 4 is housed, in described oxygen-starved area B, water pump 7 is housed, little aeration tube 2 is housed in described synchronous nitration and denitrification district C, between described synchronous nitration and denitrification district C and facultative district A, is connected with the siphon pipe 3 that has under meter.Have the overflow port 6,8,9 that is provided with at each diagonal lines two ends, district successively from high to low at described synchronous nitration and denitrification district C, film district D, facultative district A, on described film district D and the overflow port 8 that facultative district A links to each other plate is housed and is beneficial to regulate its reflux ratio.The dividing plate 5 that has runner preferably is housed in described facultative district is beneficial to the liquid diffusing oxygen that catches a packet.
The workflow of this reactor is:
Claims (2)
1. membrane bioreactor that can improve the denitrogenation ability, it comprises and is arranged on intravital synchronous nitration and denitrification district, pond, the film district, it is characterized in that: it also comprises the facultative district of L-shaped setting, the oxygen-starved area that sidewall links to each other with horizontal position outer side wall during described facultative district is L shaped, the L-shaped inner side-wall in sidewall in described film district and described facultative district links to each other, a sidewall in synchronous nitration and denitrification district links to each other with a sidewall in described film district, another sidewall links to each other with a sidewall in described oxygen-starved area and facultative district, in described facultative district and oxygen-starved area, stirring rake is housed respectively, in described film district, membrane module is housed, in described oxygen-starved area, water pump is housed, in described synchronous nitration and denitrification district, little aeration tube is housed, between described synchronous nitration and denitrification district and facultative district, be connected with the siphon pipe that has under meter, in described synchronous nitration and denitrification district, the film district, facultative district has the overflow port that is provided with at each diagonal lines two ends, district successively from high to low, on described film district and the overflow port that facultative district links to each other plate is housed.
2. a kind of membrane bioreactor that can improve the denitrogenation ability according to claim 1 is characterized in that: in described facultative district the dividing plate that has runner is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200749956U CN201240942Y (en) | 2008-06-10 | 2008-06-10 | Membrane bioreactor capable of improving denitrification ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200749956U CN201240942Y (en) | 2008-06-10 | 2008-06-10 | Membrane bioreactor capable of improving denitrification ability |
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| Publication Number | Publication Date |
|---|---|
| CN201240942Y true CN201240942Y (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200749956U Expired - Fee Related CN201240942Y (en) | 2008-06-10 | 2008-06-10 | Membrane bioreactor capable of improving denitrification ability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289254B (en) * | 2008-06-10 | 2010-06-02 | 天津大学 | Membrane bioreactor effluent treatment process for increasing denitrification effect |
-
2008
- 2008-06-10 CN CNU2008200749956U patent/CN201240942Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289254B (en) * | 2008-06-10 | 2010-06-02 | 天津大学 | Membrane bioreactor effluent treatment process for increasing denitrification effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20100610 |