CN102897967A - Easy-to-clean membrane bioreactor - Google Patents
Easy-to-clean membrane bioreactor Download PDFInfo
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- CN102897967A CN102897967A CN 201210314647 CN201210314647A CN102897967A CN 102897967 A CN102897967 A CN 102897967A CN 201210314647 CN201210314647 CN 201210314647 CN 201210314647 A CN201210314647 A CN 201210314647A CN 102897967 A CN102897967 A CN 102897967A
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Abstract
The invention relates to an easy-to-clean membrane bioreactor comprising a biological reaction tank, a membrane module positioned in the biological reaction tank, a membrane perforated aeration pipe positioned below the membrane module, a biological perforated aeration pipe positioned in the biological reaction tank, a motor positioned outside the biological reaction tank, a screw positioned in the reaction tank, and a nut connected with the screw. The membrane perforated aeration pipe is connected with a membrane aeration valve and a first gas pump. The biological perforated aeration pipe is connected with a biological aeration valve and a second gas pump. The membrane module is connected with a clean water pump and a clean water valve. The clean water valve is connected with a clean water tank. One end of the screw is fixedly connected with an output shaft of the motor, and the other end of the screw is movably connected with a bearing seat fixed on the bottom of the biological reaction tank. A supporting rod with a membrane brush provided on a side is fixedly connected on the upper end of the nut. The membrane bioreactor provided by the invention has a simple structure. According to the membrane bioreactor, the biological reaction tank and a membrane filtering tank are integrated, such that land occupation is reduced, membrane flux is maintained at a good level, membrane pollution and blockage are retarded, membrane module cleaning cycle is prolonged, and energy consumption is reduced.
Description
Technical field
The present invention relates to a kind of membrane bioreactor of being convenient to clean, belong to effluent treatment plant.
Background technology
Membrane bioreactor (MBR) is a kind of new type water treatment technology that is combined with biological processing unit by film separation unit, replace second pond with membrane module, in bio-reactor, keep the high reactivity sludge concentration, reducing sewage treatment facility takes up an area, and by keeping low sludge loading reduce mud amount, because fenestra is very tiny, this is so that film has efficient crown_interception, make microorganism be trapped in the bio-reactor fully, compare with traditional biochemical water technology, the MBR processing efficiency is high, effluent quality is good and stablize; Facility compact, floor space are little; Easy realization is controlled automatically, operational management is simple.Since the eighties, this technology more and more comes into one's own, and becomes one of focus of research.In actually operating, because content of microorganisms is higher in the biological reaction tank, these microorganisms are attached on the film surface easily, and this produces membrane module easily and pollutes, in case film is contaminated, the filtration efficiency of sewage will reduce, even causes the damage of membrane module.For the membrane module that pollutes, usually adopt the mode of matting or mechanical cleaning, although this dual mode can well be removed the film Pollution Boundary Layer, but complicated operation need to stop to produce, and membrane module is emitted or taken out to the mud in the biological reaction tank, affect production efficiency, increase cost.
Summary of the invention
In order to improve existing technical disadvantages, the invention provides a kind of membrane bioreactor of being convenient to clean, this membrane bioreactor can slow down pollution and the obstruction of film to greatest extent, the cleaning interval of membrane component and prolong, reduces energy consumption.
For achieving the above object, concrete scheme of the present invention is:
A kind of membrane bioreactor of being convenient to clean, comprise biological reaction tank, membrane module, the perforate membrane aeration tube, the Biological drilling aeration tube, described membrane module is positioned at biological reaction tank, described perforate membrane aeration tube is positioned at the below of membrane module, described perforate membrane aeration tube is connected by pipeline film aeration valve and the first air pump outer with being positioned at biological reaction tank, described Biological drilling aeration tube is positioned at the bottom of the pond of biological reaction tank, described Biological drilling aeration tube is connected by pipeline bio-aeration valve and the second air pump outer with being positioned at biological reaction tank, described membrane module is connected by pipeline clarified water pump and the water purification valve outer with being positioned at biological reaction tank, described water purifying valve door is connected with clear water tanks by pipeline, also comprise and be positioned at the outer motor of biological reaction tank, be positioned at the leading screw of biological reaction tank, the nut that is connected with threads of lead screw, one end of described leading screw is fixedly connected with the output shaft of motor, the other end of described leading screw is flexibly connected with the bearing support that is fixed at the bottom of the biological reaction tank, upper end at described nut is fixedly connected with pole, and the film brush is arranged in the side of described pole.
Also comprise Controlling System, in the upper end of described nut travel switch link stopper is arranged, in the both sides of described travel switch link stopper the travel switch that is fixed in biological reaction tank by bracing frame is arranged, described Controlling System is electrically connected with travel switch and motor.
Described membrane module comprises header, lower header and is fixed in film silk between the upper and lower header, and described pole is parallel with the film silk, and described film brush contacts with the film silk.
Described film brush is nylon material.
The present invention is simple in structure, and biological reaction tank and membrane filtration pond is integrated, has reduced floor space, makes membrane flux remain on good level, has slowed down pollution and the obstruction of film, the cleaning interval of membrane component and prolong, reduces energy consumption.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the side-looking structural representation that leading screw, nut, pole, film brush match with membrane module;
Fig. 3 is the structural representation of membrane module.
Among the figure: biological reaction tank 1, membrane module 2, upper header 2-1, lower header 2-2, film silk 2-3, Controlling System 3, perforate membrane aeration tube 4, Biological drilling aeration tube 5, film aeration valve 6, the first air pump 7, bio-aeration valve 8, the second air pump 9, clarified water pump 10, water purification valve 11, clear water tanks 12, motor 13, output shaft 13-1, leading screw 14, nut 15, shaft coupling 16, water inlet pipe 17, bearing support 18, pole 19, film brush 20, travel switch link stopper 21, bracing frame 22, travel switch 23.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of membrane bioreactor of being convenient to clean comprises biological reaction tank 1, membrane module 2, Controlling System 3, perforate membrane aeration tube 4, Biological drilling aeration tube 5, motor 13, leading screw 14, the nut 15 that is threaded with leading screw 14.
One end of leading screw 14 is fixedly connected with by shaft coupling 16 with the output shaft 13-1 of motor 13, the other end of leading screw 14 is flexibly connected with the bearing support 18 that is fixed in 1 end of biological reaction tank, be fixedly connected with pole 19 in the upper end of nut 15, film brush 20 is arranged in the side of pole 19, and present embodiment film brush 20 is nylon material.
In the upper end of nut 15 travel switch link stopper 21 is arranged, the travel switch 23 that is fixed in biological reaction tank 1 by bracing frame 22 is arranged in the both sides of travel switch link stopper 21, Controlling System 3 is electrically connected with travel switch 23 and motor 13.
The membrane bioreactor that the present invention is convenient to clean is when work, sewage is entered in the biological reaction tank 1 that contains active sludge by water inlet pipe 17, fully reaction occurs under the aeration effect of Biological drilling aeration tube 5, film silk 2-3 by membrane module 2 filters, water purification flows out from the upper header 2-1 of membrane module 2, lower header 2-2, enters clear water tanks 12 through clarified water pump 10, water purification valve 11; Perforate membrane aeration tube 4 below membrane module 2 is emitted bubble, so that membrane module 2 constantly obtains cleaning, simultaneously also can open motor 13, the output shaft 13-1 of motor 13 drives leading screw 14 and rotates, then so that nut 15 drives poles 19 moves along leading screw 14, form friction between 20 on film brush on the pole 19 and the film silk 2-3, this is so that pollutent is difficult to the surface deposition at film silk 2-3, greatly reduced the thickness of film pollution layer, pollution and the obstruction of membrane module 2 have been slowed down to greatest extent, can certainly open the mechanical cleaning that motor 13 carries out membrane module after 2 work for some time at membrane module, this looks production process and determines again.When nut 15 moves to the ultimate range of setting, 21 of travel switch link stoppers bump against on the travel switch 23, Controlling System 3 pilot circuit automatic cut-off motors 13 power supplys then, the range of two travel switches 23 restriction nuts 15 move left and right.
Claims (4)
1. membrane bioreactor of being convenient to clean, comprise biological reaction tank, membrane module, the perforate membrane aeration tube, the Biological drilling aeration tube, described membrane module is positioned at biological reaction tank, described perforate membrane aeration tube is positioned at the below of membrane module, described perforate membrane aeration tube is connected by pipeline film aeration valve and the first air pump outer with being positioned at biological reaction tank, described Biological drilling aeration tube is positioned at the bottom of the pond of biological reaction tank, described Biological drilling aeration tube is connected by pipeline bio-aeration valve and the second air pump outer with being positioned at biological reaction tank, described membrane module is connected by pipeline clarified water pump and the water purification valve outer with being positioned at biological reaction tank, described water purifying valve door is connected with clear water tanks by pipeline, it is characterized in that: also comprise being positioned at the outer motor of biological reaction tank, be positioned at the leading screw of biological reaction tank, the nut that is connected with threads of lead screw, one end of described leading screw is fixedly connected with the output shaft of motor, the other end of described leading screw is flexibly connected with the bearing support that is fixed at the bottom of the biological reaction tank, upper end at described nut is fixedly connected with pole, and the film brush is arranged in the side of described pole.
2. a kind of membrane bioreactor of being convenient to clean according to claim 1, it is characterized in that: also comprise Controlling System, there is travel switch link stopper upper end at described nut, in the both sides of described travel switch link stopper the travel switch that is fixed in biological reaction tank by bracing frame is arranged, described Controlling System is electrically connected with travel switch and motor.
3. a kind of membrane bioreactor of being convenient to clean according to claim 1 and 2, it is characterized in that: described membrane module comprises header, lower header and is fixed in film silk between the upper and lower header, described pole is parallel with the film silk, and described film brush contacts with the film silk.
4. a kind of membrane bioreactor of being convenient to clean according to claim 3 is characterized in that: described film brush is nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210314647 CN102897967A (en) | 2012-08-30 | 2012-08-30 | Easy-to-clean membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210314647 CN102897967A (en) | 2012-08-30 | 2012-08-30 | Easy-to-clean membrane bioreactor |
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| CN102897967A true CN102897967A (en) | 2013-01-30 |
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| CN 201210314647 Pending CN102897967A (en) | 2012-08-30 | 2012-08-30 | Easy-to-clean membrane bioreactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042066A (en) * | 2017-03-06 | 2017-08-15 | 王刚 | A kind of ceramic membrane group for possessing surface automatic cleaning function |
| CN112023708A (en) * | 2020-09-23 | 2020-12-04 | 东北电力大学 | Automatic membrane cleaning device for MBR (membrane bioreactor) process and use method thereof |
-
2012
- 2012-08-30 CN CN 201210314647 patent/CN102897967A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042066A (en) * | 2017-03-06 | 2017-08-15 | 王刚 | A kind of ceramic membrane group for possessing surface automatic cleaning function |
| CN107042066B (en) * | 2017-03-06 | 2023-10-31 | 王刚 | Flat ceramic membrane group with surface automatic cleaning function |
| CN112023708A (en) * | 2020-09-23 | 2020-12-04 | 东北电力大学 | Automatic membrane cleaning device for MBR (membrane bioreactor) process and use method thereof |
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Application publication date: 20130130 |