CN205045883U - Sewage treatment system with oxygen membrane bioreactor holds concurrently - Google Patents
Sewage treatment system with oxygen membrane bioreactor holds concurrently Download PDFInfo
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- CN205045883U CN205045883U CN201520673951.5U CN201520673951U CN205045883U CN 205045883 U CN205045883 U CN 205045883U CN 201520673951 U CN201520673951 U CN 201520673951U CN 205045883 U CN205045883 U CN 205045883U
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Abstract
The utility model discloses a sewage treatment system with oxygen membrane bioreactor holds concurrently, including reaction vessel, membrane separation system, product water system and aeration systems, the membrane separation system arranges in in the reaction vessel, produce the water system with membrane separation system intercommunication is used for taking out filtrating, aeration systems is used for rightly reaction vessel and membrane separation system aeration, the process of this system includes following technology step: dissolved oxygen concentration regional more than the reaction vessel 50% is less than 1mgL, dissolved oxygen concentration in the membrane separation system realm among the reaction vessel is less than 2.0mgL, and other regional dissolved oxygen concentrations are less than 1.0mgL, the dissolved oxygen concentration of membrane separation system realm is higher than other regional dissolved oxygen concentrations. The utility model discloses an aeration energy consumption is practiced thrift in the reducible oxygen suppliment of sewage treatment system with oxygen membrane bioreactor holds concurrently, can high -efficient degradation water pollutant, can be under the condition of not arranging mud still can normal operating, very big reduction the control requirement, realization unmanned on duty.
Description
Technical field
The utility model relates to sewage treatment area, particularly relates to a kind of facultative aerobic membrane bioreactor process method and Sewage treatment systems.
Background technology
That researchs and develops along with membrane bioreactor (MBR) progressively gos deep into, and the application at home of this technique is extensively got up gradually.Membrane bioreactor (MBR) technique is the biochemical reaction system be combined into by membrane module and bio-reactor, is generally made up of bio-reactor, membrane module, water production system, aerating system and spoil disposal and sludge recirculation system.Membrane bioreactor (MBR) technique has plurality of advantages, but still there is following problems demand and solve: 1. membrane bioreactor (MBR) needs spoil disposal and sludge volume is relatively large; 2. membrane bioreactor (MBR) energy consumption is high.In order to ensure to wash away aeration and the oxygen needed for aerobic microbiological degradation of contaminant to film, high-power gas blower must be equipped with and carry out aeration; 3. membrane bioreactor (MBR) control overflow is higher, and needs spoil disposal and sludge reflux, therefore employee 24 hours must be arranged on duty.
Publication number is that the utility model patent of CN101885539B discloses a kind of facultative aerobic membrane bioreactor process, this utilization controls aeration distribution, the compound bacterium phase morphology that formation amphimicrobe, aerobic bacteria coexist, this utility model patent solves the problems such as conventional MBR oxygen-consumption is large, Nitrogen/Phosphorus Removal is not good.
Because MBR applies wider water treatment method, if need MBR to be upgraded to facultative aerobic membrane bioreactor (FMBR), will face push over reconstructed cost too high, shelve occupation of land and the problem such as rate of utilization is low.
Utility model content
The technical problem that the utility model solves is to provide a kind of Sewage treatment systems with facultative aerobic membrane bioreactor being convenient to transform.
The utility model solves the technical scheme that its technical problem adopts:
A kind of Sewage treatment systems with facultative aerobic membrane bioreactor, comprise reaction vessel, film separating system, water production system and aerating system, described film separating system is placed in described reaction vessel, described water production system is communicated with the filtrate for extracting described film separating system quilt out with described film separating system, described aerating system is used for described reaction vessel and described film separating system aeration.
Described aerating system is configured to make the dissolved oxygen concentration in described reaction vessel more than 50% region be less than 1.0mg/L, dissolved oxygen concentration in described film separating system region is lower than 2.0mg/L, the dissolved oxygen concentration in other regions is lower than 1.0mg/L, and the dissolved oxygen concentration in described film separating system region is higher than the dissolved oxygen concentration in other regions.
Described water production system selects suction type water production system or gravity water production system.
Described film separating system is membrane module microfiltration membrane or ultra-filtration membrane.
The utility model also provides a kind of facultative aerobic membrane bioreactor process method, comprise following processing step: make the dissolved oxygen concentration in reaction vessel more than 50% region be less than 1mg/L by aeration control, dissolved oxygen concentration in film separating system region in wherein said reaction vessel is lower than 2.0mg/L, the dissolved oxygen concentration in other regions is lower than 1.0mg/L, and described film separating system region soluble oxygen concn is higher than the dissolved oxygen concentration in other regions.
The utility model also provides a kind of method original membrane bioreactor being transform as facultative aerobic membrane bioreactor, comprises the following steps:
A. remove the dividing plate in reaction vessel or remove the reaction zone of described membrane bioreactor front end;
B. arrange by reducing blower fan aeration rate and/or reducing aerated conduit, described aerating system is configured to the dissolved oxygen concentration in described reaction vessel more than 50% region can be made to be less than 1.0mg/L, dissolved oxygen concentration in film separating system region in wherein said reaction vessel is lower than 2.0mg/L, other region soluble oxygen concns are lower than 1.0mg/L, and the dissolved oxygen concentration in described film separating system region is higher than the dissolved oxygen concentration in other regions;
C. remove or inactive sludge drainage system, sludge recirculation system and sludge treatment facilities.
Compared with prior art, the Sewage treatment systems with facultative aerobic membrane bioreactor of the present utility model can reduce oxygen supply, save aeration consumption, comparatively membrane bioreactor (MBR) energy saving technology more than 30%, turn out the microorganism system based on facultative anaerobe simultaneously, can efficient degradation water pollutant.The Sewage treatment systems with facultative aerobic membrane bioreactor of the present utility model still can normally be run when not spoil disposal, and reactor sludge concentration can with the change oneself adjustment of influent concentration, and final system formative dynamics balances; Owing to removing or having stopped using sludge drainage system, sludge recirculation system and sludge treatment facilities, greatly reduce control overflow, realize unmanned.
Accompanying drawing explanation
Fig. 1 is the structural representation of membrane bioreactor (MBR) in prior art;
Fig. 2 is the structural representation with the Sewage treatment systems of facultative aerobic membrane bioreactor of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
The Sewage treatment systems with facultative aerobic membrane bioreactor of the present utility model comprises reaction vessel 7, film separating system 8, water production system 9 and aerating system 10, and the structure of system as shown in Figure 2.Described film separating system 8 is placed in described reaction vessel 7, described film separating system 8 adopts membrane module microfiltration membrane or ultra-filtration membrane, described water production system 9 is connected for extracting filtrate out with described film separating system 8, and described water production system 9 can be selected suction type water production system or select gravity water production system; Described aerating system 10 is configured to the dissolved oxygen concentration of described film separating system 8 region soluble oxygen concn higher than other regions, and the dissolved oxygen concentration in more than 50% region of described reaction vessel 7 is less than 1mg/L, the dissolved oxygen concentration in the region of the film separating system 8 of described reaction vessel 7 is lower than 2.0mg/L, the dissolved oxygen concentration in other regions is lower than 1.0mg/L, described film separating system region soluble oxygen concn, higher than the dissolved oxygen concentration in other regions, carries out aeration to described film separating system 8 while making to produce dissolved oxygen concentration gradient in described reaction vessel 7 and washes away.
The utility model additionally provides original membrane bioreactor Sewage treatment systems to renovate becomes the Application Example that the utility model has the Sewage treatment systems of facultative aerobic membrane bioreactor.
The Sewage treatment systems of the original employing membrane bioreactor (MBR) of certain school, its scale is 100t/d.The system construction drawing of this MBR membrane bioreactor as shown in Figure 1, the integrated equipment of this membrane bioreactor, comprise: reaction tank 1, film separating system 2, product water pump 3, aerating system 4, spoil disposal and sludge recirculation system 5 and sludge pump 6, also separately established sludge treatment device facility.Described reaction tank 1 is guiding region A, oxygen-starved area B and membrane biological reaction district C by baffle for separating, is laid with independently aerating pipelines and gas blower in each reaction zone.This membrane bioreactor 3 days row mud, each spoil disposal 15 minutes, C sludge reflux in membrane biological reaction district is to guiding region A, and reflux ratio is 1:1, and statistics run duration ton water power consumption is 0.86kWh/t, and arrange work personnel 24 hours of waste water station are on duty.
As follows to the step that the MBR membrane bioreactor shown in above-mentioned Fig. 1 renovates:
A. the dividing plate in reaction vessel is removed;
B. change aeration configuration employing one Fans and unify aeration;
C. sludge drainage system, sludge recirculation system and sludge treatment facilities has been removed.
After above-mentioned steps, original MBR membrane bioreactor will be transformed into the Sewage treatment systems with facultative aerobic membrane bioreactor as shown in Figure 2, this Sewage treatment systems comprises reaction tank 7, film separating system 8, produces water pump 9 and aerating system 10, and wherein reaction tank 7 has Jian Yang membrane biological reaction district D.Fan operation rated output is down to 1.5KWh by 3.3KWh, has re-established microorganism system, and reactor average dissolution oxygen concn is 0.72mg/L; When spoil disposal does not run, statistics runs ton water power consumption for 0.39kWh/t, and waste water station unmanned, only need patrol once weekly.
Claims (3)
1. one kind has the Sewage treatment systems of facultative aerobic membrane bioreactor, it is characterized in that, comprise reaction vessel (7), film separating system (8), water production system (9) and aerating system (10), described film separating system (8) is placed in described reaction vessel (7), described water production system (9) is communicated with the filtrate for extracting out in film separating system (8) with described film separating system (8), and described aerating system (10) is for described reaction vessel (7) and described film separating system (8) aeration;
Described aerating system (10) is configured to make the dissolved oxygen concentration in described reaction vessel more than (7) 50% region be less than 1.0mg/L, the dissolved oxygen concentration in described film separating system (8) region is lower than 2.0mg/L, the dissolved oxygen concentration in other regions is lower than 1.0mg/L, and the dissolved oxygen concentration in described film separating system (8) region is higher than the dissolved oxygen concentration in other regions.
2. the Sewage treatment systems with facultative aerobic membrane bioreactor according to claim 1, is characterized in that: described water production system (9) selects suction type water production system or gravity water production system.
3. the Sewage treatment systems with facultative aerobic membrane bioreactor according to claim 1, is characterized in that: described film separating system (8) is membrane module microfiltration membrane or ultra-filtration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673951.5U CN205045883U (en) | 2015-09-01 | 2015-09-01 | Sewage treatment system with oxygen membrane bioreactor holds concurrently |
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| CN201520673951.5U CN205045883U (en) | 2015-09-01 | 2015-09-01 | Sewage treatment system with oxygen membrane bioreactor holds concurrently |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017035890A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system of wastewater treatment using facultative-organism-adapted membrane bioreactor |
| WO2017035891A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system of wastewater treatment with zero discharge of sludge |
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2015
- 2015-09-01 CN CN201520673951.5U patent/CN205045883U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017035890A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system of wastewater treatment using facultative-organism-adapted membrane bioreactor |
| WO2017035891A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system of wastewater treatment with zero discharge of sludge |
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