CN202046964U - High-efficiency sewage treating device - Google Patents
High-efficiency sewage treating device Download PDFInfo
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- CN202046964U CN202046964U CN2011200513837U CN201120051383U CN202046964U CN 202046964 U CN202046964 U CN 202046964U CN 2011200513837 U CN2011200513837 U CN 2011200513837U CN 201120051383 U CN201120051383 U CN 201120051383U CN 202046964 U CN202046964 U CN 202046964U
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- aeration
- membrane separation
- back flushing
- water distribution
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Abstract
The utility model discloses a high-efficiency sewage treating device, which comprises a shell, wherein an aeration backflow film separating area, a biological filter area, a water inlet water distribution and back flushing water distribution area and a water outlet area are formed in the shell; the biological filter area surrounds the aeration backflow film separating area; the water inlet water distribution and back flushing water distribution area is positioned below the biological filter area; the water outlet area is positioned above the biological filter area; the lower part of the water inlet water distribution and back flushing water distribution area is provided with a sewage input port; the upper part of the aeration backflow film separating area is communicated with the water outlet area through a first opening; and the lower part of the aeration backflow film separating area is communicated with the water inlet water distribution and back flushing water distribution area through a second opening. Due to the adoption of the structure of the high-efficiency sewage treating device, the practical requirements of small investment, low running cost and stable recycling on sewage treatment can be met under the actions of the biological oxidation and decomposition and the adsorption and interception functions of a biological filter on organisms and biologically degradable substances in sewage as well as the solid-liquid separation and screening and separating actions of a film separating component.
Description
Technical field
The utility model relates to a kind of waste disposal plant.
Background technology
Pre-treatment+two embrane method technology of middle water recycle are that many technology, sector applications such as iron and steel, petrochemical industry, weaving are at home used in middle in recent years water reuse.Coagulation clarification pond or more medium filter are adopted in pre-treatment usually, and it is that the industry of two embrane methods is commonly called as that ultrafiltration adds reverse osmosis (nanofiltration), and its major advantage is that effluent quality is good, can be back to use in the production technique and go, but fatal shortcoming is to have high input, and running cost and maintenance cost are high especially, and not energy-conservation.
It is the sewage treatment technique of late 1980s using for reference the biological filtering tank process exploitation that BAF (BAF) is disposed of sewage.Take the lead in using by French OVT company, and progressively studying and using aspect China's municipal effluent, petroleum and petrochemical industry waste water, the textile printing and dyeing wastewater processing.This technology outstanding feature is to adopt particulate filler to form biological bed, has that processing efficiency height, floor space are little, capital construction and characteristics such as working cost is low and capacity of resisting impact load is strong.But also have, aeration facility serious to break down can't to get rid of in bed of packings channel short circuit phenomenon, backwash technology energy consumption height, the water consumption is big and efficient is low.
Utility model patent 200520019972.1 internal recycle aerobe oxidation reactors are obtained and are further developed, but also exist water outlet can only reach emission standard, the national environmental protection industry policy reduces discharging requirement and lack of water is serious, reality chases after the needs that switchback is used and can't satisfy.
Membrane bioreactor (MBR) is a kind of new and effective sewage disposal technology with membrane separation technique and traditional biological treatment process be combined into.Utilize ultra-filtration membrane or microfiltration membrane to substitute traditional second pond and carry out solid-liquid separation, can realize separating of sludge retention time (SRT) and hydraulic detention time, and allow long SRT, apply to handle the organic waste water of high-concentration hardly-degradable.But membrane pollution problem and high energy consumption problem are the principal elements of restriction membrane bioreactor development always, membrane bioreactor need keep higher mixed liquor suspended solid, MLSS concentration (MLSS), but higher sludge concentration can increase the weight of the pollution of membrane bioreactor again, and the aeration mass transfer velocity is slow, the oxygen profit is low, energy consumption is high, running cost is high, hinders this technology and moves on a large scale.
The utility model content
The technical problems to be solved in the utility model provides a kind of low input, low operating cost and stable waste disposal plant and contains higher organism, again water reuse or wastewater treatment in suspended substance, colourity, the ammonia nitrogen etc. arranged.
In order to solve the problems of the technologies described above, a kind of high-efficiency sewage treatment unit of the present utility model, comprise housing, be provided with aeration backflow membrane separation zone in the housing, the biofilter material district, water inlet water distribution and back flushing cloth pool and exhalant region, described biofilter material district with aeration reflux membrane separation zone around, described water inlet water distribution and back flushing water distribution district are positioned at below, biofilter material district, described exhalant region is positioned at top, biofilter material district, water inlet water distribution and bottom, back flushing cloth pool are provided with the sewage input aperture, aeration backflow membrane separation zone top is communicated with exhalant region by first opening, aeration backflow membrane separation zone bottom is communicated with water inlet water distribution and back flushing cloth pool by second opening, wherein, described aeration backflow membrane separation zone includes aeration zone and backflow membrane separation zone, has dividing plate between aeration zone and the backflow membrane separation zone, aeration zone and backflow membrane separation zone are communicated with by the dividing plate superjacent air space, the lower partition also has the 3rd opening that is communicated with aeration zone and backflow membrane separation zone, be provided with aeration tube in the described aeration zone, the aeration tube lower end has aeration head, described backflow membrane separation zone has more than one membrane separation assemblies, this membrane separation assemblies is connected with the water purification output tube, on the water purification output tube off-gas pump is installed.
As improvement of the technical scheme, the biofilter material district bottom corresponding with the sewage input aperture is provided with supporting plate, the supporting plate top is a biologic packing material, supporting plate top or bottom are provided with back flushing air inlet and gas distribution system, and the biofilter material district is communicated with water inlet water distribution and back flushing cloth pool by the water distribution filter or the grid shape supporting plate of supporting plate.
As improvement of the technical scheme, described high-efficiency sewage treatment unit has more than one aeration backflow membrane separation zone, is evenly distributed in the device.
As improvement of the technical scheme, described aeration zone is positioned at backflow membrane separation zone inside or the aeration zone is positioned at backflow membrane separation zone outside.
As improvement of the technical scheme, in described water inlet water distribution and the back flushing cloth pool back flushing water inlet and water distribution system are installed; Described exhalant region is connected with elementary reuse outlet system and back flushing water exhaust system.
The particle diameter of biofilter material is 2～12mm in the described biofilter material district, and its density is greater than 1.Described biofilter material is one or more combinations in porous ceramic grain, hard coal, quartz sand, heaving shales, expansion silico-aluminate and the plastic module.
Described membrane separation assemblies is a kind of of prefabricated component in organic ultra-filtration membrane, inorganic ultra-filtration membrane, organic microfiltration membrane and the inorganic micro filtering membrane.
The beneficial effects of the utility model are: this high-efficiency sewage treatment unit is owing to adopted said structure, by solid-liquid separation, the screening and separating that biofilter material decomposes, adsorbs crown_interception and membrane separation assemblies the bio-oxidation of organism, bio-degradable material in the sewage, can guarantee to satisfy the real needs of low input, low operating cost and stable reuse of sewage disposal.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is one of structural representation of the present utility model;
Fig. 2 is two of structural representation of the present utility model.
Embodiment
With reference to Fig. 1, a kind of high-efficiency sewage treatment unit of the present utility model, comprise housing 1, be provided with aeration backflow membrane separation zone 2 in the housing 1, biofilter material district 3, water inlet water distribution and back flushing cloth pool 4 and exhalant region 5, described biofilter material district 3 with aeration reflux membrane separation zone 2 around, described water inlet water distribution and back flushing cloth pool 4 are positioned at 3 belows, biofilter material district, described exhalant region 5 is positioned at 3 tops, biofilter material district, water inlet water distribution and 4 bottoms, back flushing cloth pool are provided with sewage input aperture 6, aeration backflow membrane separation zone 2 tops are communicated with exhalant region 5 by first opening 7, aeration backflow membrane separation zone 2 bottoms are communicated with water inlet water distribution and back flushing cloth pool 4 by second opening 8, wherein, described aeration backflow membrane separation zone 2 includes aeration zone 9 and backflow membrane separation zone 10, has dividing plate 11 between aeration zone 9 and the backflow membrane separation zone 10, aeration zone 9 and backflow membrane separation zone 10 are communicated with by dividing plate 11 superjacent air spaces, dividing plate 11 bottoms also have the 3rd opening 12 that is communicated with aeration zone 9 and backflow membrane separation zone 10, be provided with aeration tube 13 in the described aeration zone 9, aeration tube 13 lower ends have aeration head 14, described backflow membrane separation zone 10 has more than one membrane separation assemblies 15, the permeable side inner chamber of the film of this membrane separation assemblies 15 is connected with water purification output tube 16 after interconnecting and converging, and off-gas pump 17 is installed on the water purification output tube 16.Wherein, device has more than one aeration backflow membrane separation zone 2, is evenly distributed in the device.This high-efficiency sewage treatment unit is owing to adopted said structure, by solid-liquid separation, the screening and separating that biofilter material decomposes, adsorbs crown_interception and membrane separation assemblies the bio-oxidation of organism, bio-degradable material in the sewage, can guarantee to satisfy the real needs of low input, low operating cost and stable reuse of sewage disposal.Membrane separation assemblies 15 is isolated fully with the biofilter material 20 and the aeration zone 9 of mainly playing organism absorption, degraded, has guaranteed that the film surface can not adhere to the reduction flux because of mud, more can directly not wash away because of aeration and damage the film surface.The membrane separation assemblies 15 district's gas-vapor mix liquid that are positioned at backflow membrane separation zone 10 flow from top to bottom, because of having adopted novel subregion isolated aeration technology, in inside, biofilter material district and the aeration zone form two strands of huge internal recycle current from bottom to up, after membrane separation zone converges, cut the film surface from top to bottom, the external pressure of shape pair of films with evenly wash away, form the impellent of external pressure, interior suction with the film separation unit lift pump, guarantee to stablize high membrane flux, the pollution of film significantly reduces.Sewage promotes after the backflow membrane separation zone flows through the formed cycling stream in biofilter material district again along aeration tube in the aeration zone, the flow velocity of inside, filtrate district reaches 15 ~ 30m/h, improve the mass transfer velocity between microbial film and water on the filtrate, promoted the impact resistance of this device, anti-malicious ability and treatment efficiency.Waste disposal plant provides bacteria bed needed dissolved oxygen by aeration, aeration gas is carried formed huge internal recycle current and is formed big shearing force and external pressure on the film surface simultaneously, so this device power consumption is little, energy-conservation, running cost is low, is fit to extensive utilization and promotes.
In the present embodiment, biofilter material district 3 bottoms corresponding with sewage input aperture 6 are provided with supporting plate 18, supporting plate 18 tops are biologic packing material 20, supporting plate 18 tops or bottom are provided with back flushing air inlet and gas distribution system 19, and biofilter material district 3 is communicated with water inlet water distribution and back flushing cloth pool 4 by the water distribution filter or the grid shape supporting plate of supporting plate 18.In described water inlet water distribution and the back flushing cloth pool 4 back flushing water inlet and water distribution system 21 are installed.The gas of subregion aeration process and employing, moisture section backwashing technology have solved traditional B AF aeration and have directly washed away biomembranous, have prevented the appearance of channel, efficiently solve the problem that aeration head is safeguarded.Reduce the energy consumption and the water consumption of back flushing simultaneously, promoted the efficient of back flushing, prolonged backwashing period, effected a radical cure the problem that filtrate hardens.
When the volume requirement of treatment unit hour, described aeration zone 9 is positioned at backflow membrane separation zone 10 inside.When the volume requirement of treatment unit was big, as shown in Figure 2, described aeration zone 9 was positioned at backflow membrane separation zone 10 outsides.
Described exhalant region 5 is connected with elementary reuse outlet system 22 and back flushing water exhaust system 23.The user can select the ratio of the elementary reuse and the senior reuse water yield according to the character of sewage and the requirement of self flat water point, and senior reuse water outlet can be satisfied higher reuse requirement in conjunction with other unit for treating water as softening, desalination, sterilization etc.
The particle diameter of biofilter material is 2～12mm in the described biofilter material district 3, and its density is greater than 1.Described biofilter material is one or more combinations in porous ceramic grain, hard coal, quartz sand, heaving shales, expansion silico-aluminate and the plastic module.
Described membrane separation assemblies 15 is a kind of of prefabricated component in organic ultra-filtration membrane, inorganic ultra-filtration membrane, organic microfiltration membrane and the inorganic micro filtering membrane.
The application art of described high-efficiency sewage treatment unit may further comprise the steps:
A. sewage enters into water water distribution and back flushing cloth pool 4 through sewage input aperture 6, enters aeration backflow membrane separation zone 2 by second opening 8 again;
B. air is by carrying out aeration in aeration tube 13 and the aeration head 14 input sewage, produce a large amount of micro-bubbles, 9 risings flow into backflow membrane separation zone 10 to the air water mixed solution along the aeration zone, cut membrane separation assemblies 15 surfaces to dirty, the a part of upwelling that replenishes in the aeration zones 9 by the 3rd opening 12, most by behind the sewage mixed diluting of coming among second opening 8 and the step a by water inlet water distribution and back flushing cloth pool 4 along biofilter material district 3 to the upper reaches;
C. the organism in the diluted sewage is adsorbed by microorganism during by biofilter material district 3, microorganism absorbs oxidative degradation takes place behind the oxygen in the air water mixed solution of aeration or by microorganism self metabolism, the water section of remove most of organism through the biofilter material district, holding back most suspended substances is back to backflow membrane separation zone 10 by first opening 7, and another part flows out through elementary reuse outlet system 22;
D. open off-gas pump 17, when the water of inflow backflow membrane separation zone 10 flows through membrane separation assemblies 15 surfaces among the step c, under the external pressure systemic action, portion water sees through membrane separation assemblies 15 surfaces and interconnects through permeable side inner chambers and enter water purification output tube 16 after converging and flow out and become senior reuse water, and most of water flows through membrane separation assemblies 15 surfaces downwards through second opening, 8 back and forth big flow internal recycle.
The above only is a preferential embodiment of the present utility model, as long as realize that with basic identical means the technical scheme of the utility model purpose all belongs within the protection domain of the present utility model.
Claims (9)
1. high-efficiency sewage treatment unit, comprise housing (1), be provided with aeration backflow membrane separation zone (2) in the housing (1), biofilter material district (3), water inlet water distribution and back flushing cloth pool (4) and exhalant region (5), it is characterized in that described biofilter material district (3) with aeration reflux membrane separation zone (2) around, described water inlet water distribution and back flushing cloth pool (4) are positioned at below, biofilter material district (3), described exhalant region (5) is positioned at top, biofilter material district (3), water inlet water distribution and bottom, back flushing cloth pool (4) are provided with sewage input aperture (6), aeration backflow membrane separation zone (2) top is communicated with exhalant region (5) by first opening (7), aeration backflow membrane separation zone (2) bottom is communicated with water inlet water distribution and back flushing cloth pool (4) by second opening (8), wherein, described aeration backflow membrane separation zone (2) includes aeration zone (9) and backflow membrane separation zone (10), has dividing plate (11) between aeration zone (9) and the backflow membrane separation zone (10), aeration zone (9) and backflow membrane separation zone (10) are communicated with by dividing plate (11) superjacent air space, dividing plate (11) bottom also has the 3rd opening (12) that is communicated with aeration zone (9) and backflow membrane separation zone (10), be provided with aeration tube (13) in the described aeration zone (9), aeration tube (13) lower end has aeration head (14), described backflow membrane separation zone (10) has more than one membrane separation assemblies (15), this membrane separation assemblies (15) is connected with water purification output tube (16), and off-gas pump (17) is installed on the water purification output tube (16).
2. high-efficiency sewage treatment unit according to claim 1, it is characterized in that biofilter material district (3) bottom corresponding with sewage input aperture (6) is provided with supporting plate (18), supporting plate (18) top is biologic packing material (20), supporting plate (18) top or bottom are provided with back flushing air inlet and gas distribution system (19), and biofilter material district (3) are communicated with water inlet water distribution and back flushing cloth pool (4) by the water distribution filter or the grid shape supporting plate of supporting plate (18).
3. high-efficiency sewage treatment unit according to claim 1 is characterized in that device has more than one aeration backflow membrane separation zone (2), is evenly distributed in the device.
4. high-efficiency sewage treatment unit according to claim 1 is characterized in that being equipped with in described water inlet water distribution and the back flushing cloth pool (4) back flushing water inlet and water distribution system (21).
5. high-efficiency sewage treatment unit according to claim 1 is characterized in that described aeration zone (9) is positioned at backflow membrane separation zone (10) inside.
6. high-efficiency sewage treatment unit according to claim 1 is characterized in that described aeration zone (9) is positioned at backflow membrane separation zone (10) outside.
7. high-efficiency sewage treatment unit according to claim 1 is characterized in that described exhalant region (5) is connected with elementary reuse outlet system (22) and back flushing water exhaust system (23).
8. high-efficiency sewage treatment unit according to claim 1 is characterized in that described biofilter material is a kind of in porous ceramic grain, hard coal, quartz sand, heaving shales, expansion silico-aluminate and the plastic module.
9. high-efficiency sewage treatment unit according to claim 1 is characterized in that described membrane separation assemblies (15) is a kind of of prefabricated component in organic ultra-filtration membrane, inorganic ultra-filtration membrane, organic microfiltration membrane and the inorganic micro filtering membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200513837U CN202046964U (en) | 2011-03-01 | 2011-03-01 | High-efficiency sewage treating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200513837U CN202046964U (en) | 2011-03-01 | 2011-03-01 | High-efficiency sewage treating device |
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| CN202046964U true CN202046964U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200513837U Expired - Lifetime CN202046964U (en) | 2011-03-01 | 2011-03-01 | High-efficiency sewage treating device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145963A (en) * | 2011-03-01 | 2011-08-10 | 江门市创源水处理科技有限公司 | Efficient sewage treatment device and technology using same |
| CN103332779A (en) * | 2013-06-04 | 2013-10-02 | 上海延庆水处理设备制造有限公司 | Composite aeration biological filter and process thereof |
| CN103936141A (en) * | 2014-04-15 | 2014-07-23 | 中持（北京）水务运营有限公司 | Biological aerated filter |
| CN105174439A (en) * | 2015-10-22 | 2015-12-23 | 北京格兰特膜分离设备有限公司 | Air stripping coupled bioreactor and sewage treatment method |
| CN105712589A (en) * | 2016-04-29 | 2016-06-29 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | Filler/ultrafiltration membrane integrated water purifying device and application method thereof |
-
2011
- 2011-03-01 CN CN2011200513837U patent/CN202046964U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145963A (en) * | 2011-03-01 | 2011-08-10 | 江门市创源水处理科技有限公司 | Efficient sewage treatment device and technology using same |
| CN102145963B (en) * | 2011-03-01 | 2012-06-27 | 江门市创源水处理科技有限公司 | Efficient sewage treatment device and technology using same |
| CN103332779A (en) * | 2013-06-04 | 2013-10-02 | 上海延庆水处理设备制造有限公司 | Composite aeration biological filter and process thereof |
| CN103332779B (en) * | 2013-06-04 | 2015-01-21 | 上海延庆水处理设备制造有限公司 | Composite aeration biological filter and process thereof |
| CN103936141A (en) * | 2014-04-15 | 2014-07-23 | 中持（北京）水务运营有限公司 | Biological aerated filter |
| CN103936141B (en) * | 2014-04-15 | 2016-10-05 | 中持水务股份有限公司 | A kind of BAF |
| CN105174439A (en) * | 2015-10-22 | 2015-12-23 | 北京格兰特膜分离设备有限公司 | Air stripping coupled bioreactor and sewage treatment method |
| CN105712589A (en) * | 2016-04-29 | 2016-06-29 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | Filler/ultrafiltration membrane integrated water purifying device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111123 Effective date of abandoning: 20120627 |