CN102897896B - Tubular membrane bioreactor - Google Patents
Tubular membrane bioreactor Download PDFInfo
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- CN102897896B CN102897896B CN201210375862.3A CN201210375862A CN102897896B CN 102897896 B CN102897896 B CN 102897896B CN 201210375862 A CN201210375862 A CN 201210375862A CN 102897896 B CN102897896 B CN 102897896B
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Abstract
The invention relates to a tubular membrane bioreactor, comprising a membrane frame, the interior of the membrane frame is provided with a plurality of tubular membrane modules arranged in order, the tops of the membrane modules are gathered through an outlet pipe and then are connected with a suction draining system, the bottom of the membrane frame is provided with an aeration system, the membrane module comprises a plurality of uniformly arranged membrane tubes, and a plurality of flexible friction balls are arranged in a cavity formed by adjacent two membrane tubes. According to the invention, the tubular membrane bioreactor adopts the tubular membrane as the filter membrane, thus fracture and damage of the filter membrane causing water quality deterioration can be avoided; by adding the flexible friction balls in the cavity formed by the membrane tubes, the effective concentration of sludge can be raised, the biochemical treatment efficiency is raised, the water quality of the effluent is raised, and the cost is reduced; the flexible friction balls washout the membrane surfaces, thus the pollution circle of the membrane tubes is prolonged; the distance between the adjacent filter membranes is large and fixed, thus sludge deposit is little; and the filter modules has a simple structure, and the preparation technology is simple.
Description
Technical field
The present invention relates to a kind of tubular membrane bio-reactor.
Background technology
Membrane bioreactor is that a kind of Novel sewage is processed treatment process, and it is processed end at wastewater biochemical and adds filtering membrane, and the water after biochemical treatment discharges after by filter membrane, and filtering membrane can be trapped in active sludge and macromolecular substance in biochemistry pool.MBR membrane technique carries out independent control by the hydraulic detention time of biochemical treatment and sludge retention time, the handiness of the treatment process having increased, can design for different waste water suitable hydraulic detention time and sludge retention time simultaneously filtering membrane have superpower mud-water separation function, make in biochemistry pool to such an extent that sludge concentration can greatly increase and do not worry mud-water separation problem.
MBR technical operation are controlled more flexibly and are stablized in addition, are in sewage disposal, easily to realize the new technology of equipmentization, can realize microcomputer automatic control, thereby make operational administrative more convenient.Due to the high efficiency separation effect of film, separating effect is much better than traditional settling tank, processes water outlet extremely limpid, suspended substance and turbidity are close to zero, bacterium and virus are significantly removed, and effluent quality is better than traditional technology to be processed, and water outlet can be directly drunk municipal miscellaneous water and carried out reuse as non-.Simultaneously, membrane sepn also makes microorganism and macromolecular difficult decomposed substance be dammed in bio-reactor, in system, can maintain higher microorganism concn, not only improved the whole removal efficiency of reaction unit to pollutent, also make not labile material there is the longer residence time, guaranteed good effluent quality.MBR membrane technique can move under high volumetric loading, low sludge loading, and excess sludge production is low, has reduced sludge treatment expense.In bio-reactor, can maintain the microbial biomass of high density, treatment unit volumetric loading is high, can save second pond simultaneously, and floor space is saved greatly; This technical process is simple, compact construction, small accommodation area, place is not set and limits, and is suitable for any occasion, can make ground type, semi-underground type and underground type.Because microorganism is dammed in bio-reactor completely, thereby be conducive to breed, microorganism is as the growth of holding back of nitrobacteria slowly, and system nitrification efficiency is improved.
The type of common membrane bioreactor film mainly contains hollow-fibre membrane, flat sheet membrane in the market.Tubular fibre film group device usually needs large-scale aeration, to prevent that film silk from polluting.Lower aeration can pollute according to film forming silk, and larger aeration can increase the infringement of film silk and increase operation cost.Flat sheet membrane complicated process of preparation, cost is high, needs sluicing to alleviate surperficial pollution.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of tubular membrane bio-reactor simple in structure, easy to use, there is not cracky, resistant to pollution advantage.
Tubular membrane bio-reactor of the present invention, comprise film framework, the inside of described film framework is provided with some tubular membrane components that are arranged in order, rear connection suction water exhaust system is gathered by outlet conduit in the top of tubular membrane component, the bottom of film framework is provided with aerating system, tubular membrane component comprises some evenly distributed film pipes, in the cavity that adjacent two film pipes form, a plurality of flexible friction balls is set.
Tubular membrane bio-reactor of the present invention, described film framework is rectangular membrane framework.
Tubular membrane bio-reactor of the present invention, described discharging water system comprises suction water pump, by the suction function of suction water pump, the liquid after filmed passing tube filters is discharged.
Tubular membrane bio-reactor of the present invention, described aerating system comprises blower fan, the air outlet of blower fan connects some aeration tubes that are arranged on film base of frame, and a plurality of solarization air caps are set on the outer wall of aeration tube.
Tubular membrane bio-reactor of the present invention, described film pipe comprises the basement membrane of being made by sinterable polymer film or polymer spray fusing film, basement membrane external diameter is 3-15mm, compound one deck polyvinylidene difluoride (PVDF), polyvinyl chloride, polyethersulfone, polysulfones or the fine filtering layer of polypropylene on the outside surface of basement membrane.
Tubular membrane bio-reactor of the present invention, spacing between described adjacent two film pipes is 1.5-5mm, flexible friction spherical diameter is 1-4mm, the porous ball that flexible friction ball is made for one or more materials in polyvinylidene difluoride (PVDF), polyvinyl chloride, polyethersulfone, polysulfones, polypropylene are fine.
Tubular membrane bio-reactor of the present invention, the two ends of described film pipe are fixed by tackiness agent respectively.
Compared with prior art beneficial effect of the present invention is:
1) adopt tubular membrane as filtering membrane, can avoid filtering membrane fracture damaged, cause the deterioration of water quality;
2) in the cavity forming at film pipe, add flexible friction ball, can increase the effective concentration of mud, improve biochemical treatment efficiency, improve effluent quality, reduce costs; Flexible friction ball washes away film surface, extends the pollution cycle of film pipe.
3) filtering membrane spacing is large and fixing, is not prone to deposition;
4) filter assemblies is simple in structure, and preparation technology is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of tubular membrane bio-reactor described in the embodiment of the present invention is removed suction water exhaust system and aerating system;
Fig. 2 is the structural representation of tubular membrane component in a kind of tubular membrane bio-reactor described in the embodiment of the present invention.
In figure:
1, film framework; 2, tubular membrane component; 3, film pipe.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1-2, a kind of tubular membrane bio-reactor, comprise film framework 1, the inside of described film framework 1 is provided with some tubular membrane components that are arranged in order 2, rear connection suction water exhaust system is gathered by outlet conduit in the top of tubular membrane component 2, the bottom of film framework 1 is provided with aerating system, and tubular membrane component 2 comprises some evenly distributed film pipes 3, in the cavity that adjacent two film pipes 3 form, a plurality of flexible friction balls is set.
Tubular membrane bio-reactor of the present invention, described film framework 1 is rectangular membrane framework.
Tubular membrane bio-reactor of the present invention, described discharging water system comprises suction water pump, by the suction function of suction water pump, the liquid after filmed passing tube 3 filters is discharged.
Tubular membrane bio-reactor of the present invention, described aerating system comprises blower fan, the air outlet of blower fan connects some aeration tubes that are arranged on film framework 1 bottom, and a plurality of solarization air caps are set on the outer wall of aeration tube.
Tubular membrane bio-reactor of the present invention, described film pipe 3 comprises the basement membrane of being made by sinterable polymer film or polymer spray fusing film, basement membrane external diameter is 3-15mm, compound one deck polyvinylidene difluoride (PVDF) (PVDF), polyvinyl chloride (PVC), polyethersulfone (PES), polysulfones (PS) or polypropylene fine (PAN) filtering layer on the outside surface of basement membrane.
Tubular membrane bio-reactor of the present invention, spacing between described adjacent two film pipes 3 is 1.5-5mm, flexible friction spherical diameter is 1-4mm, flexible friction ball is for by polyvinylidene difluoride (PVDF) (PVDF), polyvinyl chloride (PVC), polyethersulfone (PES), polysulfones (PS)), the porous ball made of one or more materials in polypropylene fine (PAN), to add flexible ball stacking volume be membrane cisterna 15%.
Tubular membrane bio-reactor of the present invention, the two ends of described film pipe 3 are fixed by tackiness agent respectively.
Tubular membrane bio-reactor of the present invention is when concrete use, put into water treatment membrane cisterna, sewage is before entering membrane cisterna, sewage need to be done pre-treatment, comprise anaerobic biological processing, aerobic treatment, anoxic biochemical treatment, the selection of technique is according to the practical situation of sewage, and usually anaerobic biological processing hydraulic detention time is 2-6h, anoxic biochemical treatment hydraulic detention time is 1-5h, and Aerobic Pond hydraulic detention time is 1-10h.The hydraulic detention time of sewage in tubular membrane component is 1-2 hour, enters the cod scope 100-1000mg/L of membrane cisterna sewage, sludge age 10-30d, and aeration intensity is 50-300m
3hm is not etc.Mud needs oxygen, and flexible friction ball disperses to stir, and flexible friction ball has enough washing away to film tube-surface, can avoid the pollution of film pipe, therefore aerating system is set in the bottom of tubular membrane component.The stop of sewage in tubular membrane component reached the hydraulic detention time of design, after being filtered, discharges or enters next stage process via outlet conduit by suction water pump via film pipe.Suction adopts suction pump, below pressure-controlling 35KPa.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1. a tubular membrane bio-reactor, comprise film framework (1), it is characterized in that: the inside of described film framework (1) is provided with some tubular membrane components that are arranged in order (2), rear connection suction water exhaust system is gathered by outlet conduit in the top of tubular membrane component (2), the bottom of film framework (1) is provided with aerating system, tubular membrane component (2) comprises some evenly distributed film pipes (3), in the cavity that adjacent two film pipes (3) form, a plurality of flexible friction balls is set; Spacing between described adjacent two film pipes (3) is 1.5-5mm, and flexible friction spherical diameter is 1-4mm, the porous ball that flexible friction ball is made for one or more materials in polyvinylidene difluoride (PVDF), polyvinyl chloride, polyethersulfone, polysulfones, polypropylene are fine.
2. tubular membrane bio-reactor according to claim 1, is characterized in that: described film framework (1) is rectangular membrane framework.
3. tubular membrane bio-reactor according to claim 1, is characterized in that: described discharging water system comprises suction water pump, by the suction function of suction water pump, the liquid after filmed passing tube (3) filters is discharged.
4. tubular membrane bio-reactor according to claim 1, is characterized in that: described aerating system comprises blower fan, and the air outlet of blower fan connects some aeration tubes that are arranged on film framework (1) bottom, and a plurality of solarization air caps are set on the outer wall of aeration tube.
5. tubular membrane bio-reactor according to claim 1, it is characterized in that: described film pipe (3) comprises the basement membrane of being made by sinterable polymer film or polymer spray fusing film, basement membrane external diameter is 3-15mm, compound one deck polyvinylidene difluoride (PVDF), polyvinyl chloride, polyethersulfone, polysulfones or the fine filtering layer of polypropylene on the outside surface of basement membrane.
6. tubular membrane bio-reactor according to claim 1, is characterized in that: the two ends of described film pipe (3) are fixed by tackiness agent respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210375862.3A CN102897896B (en) | 2012-09-29 | 2012-09-29 | Tubular membrane bioreactor |
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| CN201210375862.3A CN102897896B (en) | 2012-09-29 | 2012-09-29 | Tubular membrane bioreactor |
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| CN102897896B true CN102897896B (en) | 2014-02-26 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591473B (en) * | 2013-11-01 | 2017-04-12 | 中国石油化工股份有限公司大连石油化工研究院 | Advanced nitrogen and phosphorus removal technology |
| CN105000758A (en) * | 2015-07-30 | 2015-10-28 | 天津霍普环保科技有限公司 | Integrated membrane bioreactor |
| CN106745877A (en) * | 2016-11-28 | 2017-05-31 | 湖州环清环保科技有限公司 | A kind of film filtering reactor |
| CN108264208A (en) * | 2016-12-30 | 2018-07-10 | 天津市西海环境工程设计有限公司 | A kind of sludge organism activation treatment equipment |
| CN109133338A (en) * | 2018-11-11 | 2019-01-04 | 上海跃绅能源科技有限公司 | A kind of stagger arrangement arrangement tubular type membrane bioreactor |
| CN109179646A (en) * | 2018-11-14 | 2019-01-11 | 凌志环保股份有限公司 | A kind of integration MBR film micro-power biological reactor |
| CN111495194B (en) * | 2020-04-23 | 2022-10-11 | 北创清源(北京)科技有限公司 | Repair method for root damage of membrane filaments of hollow fiber curtain type membrane component |
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Application publication date: 20130130 Assignee: Inner Mongolia East Water Technology Co., Ltd. Assignor: Beijing Bishui Yuanmo Science and Technology Co., Ltd. Contract record no.: 2014990000889 Denomination of invention: Tubular membrane bioreactor Granted publication date: 20140226 License type: Exclusive License Record date: 20141127 |
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