CN201512452U - MBR device adopting double-layer energy-saving oxidation ditch - Google Patents
MBR device adopting double-layer energy-saving oxidation ditch Download PDFInfo
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- CN201512452U CN201512452U CN2009201831350U CN200920183135U CN201512452U CN 201512452 U CN201512452 U CN 201512452U CN 2009201831350 U CN2009201831350 U CN 2009201831350U CN 200920183135 U CN200920183135 U CN 200920183135U CN 201512452 U CN201512452 U CN 201512452U
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Abstract
The utility model relates to a wastewater processing device, in particular to an MBR device adopting a double-layer energy-saving oxidation ditch, which comprises the oxidation ditch, a water conveying pump, an ultra-filtration membrane system and a water regenerating pond, wherein the oxidation ditch, the water conveying pump, the ultra-filtration membrane system and the water regenerating pond are sequentially connected with each other. The wastewater processing device is characterized in that the oxidation ditch is the double-layer energy-saving oxidation ditch, which comprises an upper-layer oxidation ditch and a lower-layer oxidation ditch, the upper-layer oxidation ditch and the lower-layer oxidation ditch respectively comprises two parallel long aeration ditches, and the four long aeration ditches are connected end to end to be formed into circular flow. The wastewater processing device integrates the double-layer energy-saving oxidation ditch with an external pipe type ultra-filtration membrane into a technology equipment, saves material and use floor, adopts a simple flow guide wall to prevent upstream water of an aeration region from inversely flowing, is matched with a multi-functional surface aeration machine, and has obvious energy-saving effect.
Description
[technical field]
The utility model relates to a kind of waste disposal plant, particularly a kind of MBR device that adopts double-layer energy-saving type oxidation ditch.
[background technology]
Membrane bioreactor (Membrane Bioreactor, be called for short MBR) be a kind of new and effective wastewater treatment and reuse technology, it utilizes membrane separation plant that active sludge in the biochemistry pool and macromolecular substance are held back, thereby hydraulic detention time and sludge retention time can be controlled respectively, and the material of difficult degradation constantly reacts in reactor, degrades, and saves second pond simultaneously.
Because needing MBR technology to combine with the film processing, " household refuse landfill sites pollution control criterion " emission limit requirement in (GB16889-2008), the treatment process of percolate could guarantee the water outlet qualified discharge.At present, adopt A/O pond and ultra-filtration membrane to form MBR technology on the engineering mostly, this technology provides oxygen by gas blower, cause water temperature too high during summer operation easily, not only need to design cooling-cycle device and reflux, energy consumption is big, and denitrification effect is not thorough, thereby influences the normal operation of system.Simultaneously, because the highest depth of water in A/O pond is below 7.5 meters, floor space is big, and construction investment expense height for this reason, is necessary to develop a cover sewage disposal new technology that floor space is little, the scrubbing effect is obvious, energy consumption is low.
[summary of the invention]
The technical problems to be solved in the utility model, be to provide a kind of MBR device that adopts double-layer energy-saving type oxidation ditch, have aerobic, anoxic and anaerobic biological treatment effect simultaneously, to the good waste water treatment effect of difficult degradation, the high ammonia nitrogen of high density, and floor space is little, energy consumption is low.
The utility model solves the problems of the technologies described above by the following technical solutions: a kind of MBR device that adopts double-layer energy-saving type oxidation ditch, comprise oxidation ditch, water transfer pump, ultrafiltration membrane system, produce the pond, described oxidation ditch, water transfer pump, ultrafiltration membrane system and product pond are connected in turn, wherein: described oxidation ditch is a double-layer energy-saving type oxidation ditch, this double-layer energy-saving type oxidation ditch comprises the upper strata oxidation ditch, lower floor's oxidation ditch, described upper strata oxidation ditch and lower floor's oxidation ditch comprise two parallel microscler aeration irrigation canals and ditches respectively, these four microscler aeration irrigation canals and ditches formation cycling stream that joins end to end.
One end of described upper strata oxidation ditch and lower floor's oxidation ditch is to be communicated with end with layer, the other end is that different layer is communicated with end, the same layer of described upper strata oxidation ditch and lower floor's oxidation ditch is communicated with end and is semicircle, the same layer of described upper strata oxidation ditch is communicated with end and is provided with a multi-functional surface aerator, and the end of the partition wall between the two microscler aeration irrigation canals and ditches of the contiguous described upper strata of this multi-functional surface aerator oxidation ditch.
Also to be communicated with oblique extension one training wall of end with layer, the end of this training wall points to a side of described multi-functional surface aerator to the end of the partition wall between the two microscler aeration irrigation canals and ditches of described upper strata oxidation ditch.Described training wall becomes 135 ° of angles with described partition wall, and the impeller closest range of this training wall and multi-functional surface aerator is 50～80mm.
Described ultrafiltration membrane system is the external placed type tubular ultra-filtration membrane, be arranged in the outer workshop of oxidation ditch, this external placed type tubular ultra-filtration membrane comprises ultra-filtration membrane and membrane support, described ultra-filtration membrane is supported by described membrane support, described external placed type tubular ultra-filtration membrane is connected water transfer pump and produces between the pond, and the mud concentrated solution outlet end of this external placed type tubular ultra-filtration membrane is connected to described double-layer energy-saving type oxidation ditch again.
The utility model advantage is:
1) array mode of employing double-layer energy-saving type oxidation ditch and external placed type tubular ultra-filtration membrane, brought into play the advantage of oxidation ditch bio-reactor and tubular membrane, need not to expose to the sun oxygen, reflux cooling and suction unit have the good treatment effect to the trade effluent of the high ammonia nitrogen of difficult degradation;
2) improved oxidation ditch is a double-layer energy-saving type oxidation ditch, makes it satisfy the requirement of mass transfer (dissolved oxygen etc.) in the high sludge concentration of Membrane Bioreactor for Wastewater Treatment system.The structure of conventional oxidation ditch bio-reactor and aeration etc. are difficult to satisfy the requirement of membrane bioreactor (MBR) system;
3) by the rotating speed of impeller of control multi-functional surface aerator, regulate dissolved oxygen efficiency, form tangible aerobic zone, oxygen-starved area and anaerobic zone, and utilize big flow return sludge ratio in the oxidation ditch, the denitrogenation dephosphorizing effect is obvious, and especially the nitrogen removal rate height can directly reach emission request;
4) the film system adopts external placed type tubular ultra-filtration membrane assembly, and is cheap, and permeation flux is big, working pressure is little and film pollutes control and it is simple to clean, and makes the film separation unit of membrane bioreactor have better resistance to crocking, and the operation of system is more stable permanent.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the overall structure synoptic diagram of the utility model MBR device.
Fig. 2 A to Fig. 2 D is the structural representation of the utility model double-layer energy-saving type oxidation ditch.
Fig. 3 is the principle of work synoptic diagram of the utility model external placed type tubular ultra-filtration membrane.
[embodiment]
See also shown in Figure 1, the MBR device that the utility model is adopted, comprise double-layer energy-saving type oxidation ditch 1, water transfer pump 2, external placed type tubular ultra-filtration membrane 3, produce pond 4, described double-layer energy-saving type oxidation ditch 1, water transfer pump 2, external placed type tubular ultra-filtration membrane 3 and product pond 4 are connected in turn, and the mud concentrated solution outlet end 34 of external placed type tubular ultra-filtration membrane 3 is connected to described double-layer energy-saving type oxidation ditch 1 again.
Please consult simultaneously shown in Fig. 2 A to Fig. 2 D, described double-layer energy-saving type oxidation ditch 1 is designed to double-deck four ditch forms, bilayer is to comprise upper strata oxidation ditch 11, lower floor's oxidation ditch 12, described upper strata oxidation ditch 11 comprises two parallel microscler aeration irrigation canals and ditches 111 and 112, lower floor's oxidation ditch 12 comprises two parallel microscler aeration irrigation canals and ditches 121 and 122, one end of described upper strata oxidation ditch 11 and lower floor's oxidation ditch 12 is to be communicated with end 113 (123) with layer, the other end is that different layer is communicated with end 114 (124), thereby realizes four microscler aeration irrigation canals and ditches formation cycling stream that joins end to end.The height of lower floor's oxidation ditch 12 is half of furrow width, a medium-sized 0.5m of upper strata oxidation ditch 11 aspect ratio furrow widths, and the same layer of described upper strata oxidation ditch 11 and lower floor's oxidation ditch 12 is communicated with end 113 and is semicircle, is beneficial to the smooth and easy of circulating water flow.
Be provided with a multi-functional surface aerator 13 in the described oxidation ditch 1, the impeller liftable of multi-functional surface aerator 13 has vertical suction effect, can remove the setting of low speed impeller from; The same layer that this multi-functional surface aerator 13 is located at described upper strata oxidation ditch 11 is communicated with end 113, and the end of the partition wall 15 between the two microscler aeration irrigation canals and ditches of contiguous described upper strata oxidation ditch 11.And the end of this partition wall 15 is to being communicated with oblique extension one training wall 16 of end with layer, the end of this training wall 16 points to a side of described multi-functional surface aerator 13.And training wall 16 becomes 135 ° of angles with partition wall, with the about 50～80mm of impeller closest range of multi-functional surface aerator 13.Under the stirring of multi-functional surface aerator 13, the current of levels are through being communicated with passage 17 circulation in the end 114 (124) with layer connection end 113 (123) and different layer; The setting of described training wall 16 can prevent effectively that the flow through impeller of multi-functional surface aerator 13 of aeration zone upper water from stirring the back and produce the refluence phenomenon.By the rotating speed of control multi-functional surface aerator 13 impellers, regulate dissolved oxygen efficiency, can form tangible aerobic zone, oxygen-starved area and anaerobic zone, and utilize big flow return sludge ratio in the ditch, the denitrogenation dephosphorizing effect is obvious, and especially the nitrogen removal rate height can directly reach emission request.
As shown in Figure 3, described external placed type tubular ultra-filtration membrane 3, be arranged in the workshop outside the described double-layer energy-saving type oxidation ditch 1, this external placed type tubular ultra-filtration membrane 3 comprises ultra-filtration membrane 31 and membrane support 32, described ultra-filtration membrane 31 is supported by described membrane support 32, be equipped with recycle pump again, cleaning system and matching instrument pipeline (not shown), feeding liquid is entered by an end 33 of external placed type tubular ultra-filtration membrane 3 under the pressure effect of water transfer pump and recycle pump, dialyzate infiltrates from ultra-filtration membrane 31 and membrane support 32, and out-feed liquid is that mud concentrated solution outlet end 34 is back in the described double-layer energy-saving type oxidation ditch 1 again from an other end then.
Principle of work of the present utility model is:
Sewage enters double-layer energy-saving type oxidation ditch 1 by sewage water inlet pipe, presses the direction of arrow among Fig. 1 and flows into the upper strata anaerobic zone and mix mobile in the aerobic zone of upper strata in the direction of arrows with current after multi-functional surface aerator 13 oxygenations.Current flow to lower floor's aerobic zone by the porthole 17 that different layer is communicated with end 114 (124), flow to the lower floor oxygen-starved area of opposite side again, last current are communicated with another porthole 18 of end 114 (124) again through different layer, enter the upper strata anaerobic zone, mix with the sewage of water inlet pipe, finish a water circulation.So, the active sludge in sewage and the double-layer energy-saving type oxidation ditch 1 mixes, through aerobic, double oxygen and anaerobic microbial process, the CODcr that degraded, BOD
5, NH
3-N and total nitrogen.
The sewage mixed solution that comes out from described double-layer energy-saving type oxidation ditch 1 is after overflow, supercharging through water transfer pump 2 enters described external placed type tubular ultra-filtration membrane 3, under pressure, liquid enters product pond 4 after seeing through described external placed type tubular ultra-filtration membrane 3 in the mixed solution, active sludge in the mixed solution then is trapped, and is back in the described double-layer energy-saving type oxidation ditch 1 with concentrated solution.
In sum, the utility model is integrated into a processing unit with double-layer energy-saving type oxidation ditch and external placed type tubular ultra-filtration membrane, saves material and land used; And adopt easy training wall, and prevent upstream, aeration zone current refluence phenomenon, cooperate and adopt multi-functional surface aerator, energy-saving effect is remarkable.
Claims (5)
1. MBR device that adopts double-layer energy-saving type oxidation ditch, comprise oxidation ditch, water transfer pump, ultrafiltration membrane system, produce the pond, described oxidation ditch, water transfer pump, ultrafiltration membrane system and product pond are connected in turn, it is characterized in that: described oxidation ditch is a double-layer energy-saving type oxidation ditch, this double-layer energy-saving type oxidation ditch comprises upper strata oxidation ditch, lower floor's oxidation ditch, described upper strata oxidation ditch and lower floor's oxidation ditch comprise two parallel microscler aeration irrigation canals and ditches respectively, these four microscler aeration irrigation canals and ditches formation cycling stream that joins end to end.
2. double-layer energy-saving type oxidation ditch according to claim 1, it is characterized in that: an end of described upper strata oxidation ditch and lower floor's oxidation ditch is for being communicated with end with layer, the other end is that different layer is communicated with end, the same layer of described upper strata oxidation ditch and lower floor's oxidation ditch is communicated with end and is semicircle, the same layer of described upper strata oxidation ditch is communicated with end and is provided with a multi-functional surface aerator, and the end of the partition wall between the two microscler aeration irrigation canals and ditches of the contiguous described upper strata of this multi-functional surface aerator oxidation ditch.
3. double-layer energy-saving type oxidation ditch according to claim 2, it is characterized in that: also to be communicated with oblique extension one training wall of end with layer, the end of this training wall points to a side of described multi-functional surface aerator to the end of the partition wall between the two microscler aeration irrigation canals and ditches of described upper strata oxidation ditch.
4. double-layer energy-saving type oxidation ditch according to claim 3 is characterized in that: described training wall becomes 135 ° of angles with described partition wall, and the impeller closest range of this training wall and multi-functional surface aerator is 50～80mm.
5. a kind of MBR device that adopts double-layer energy-saving type oxidation ditch according to claim 1, it is characterized in that: described ultrafiltration membrane system is the external placed type tubular ultra-filtration membrane, be arranged in the outer workshop of oxidation ditch, this external placed type tubular ultra-filtration membrane comprises ultra-filtration membrane and membrane support, described ultra-filtration membrane is supported by described membrane support, described external placed type tubular ultra-filtration membrane is connected water transfer pump and produces between the pond, and the mud concentrated solution outlet end of this external placed type tubular ultra-filtration membrane is connected to described double-layer energy-saving type oxidation ditch again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201831350U CN201512452U (en) | 2009-09-29 | 2009-09-29 | MBR device adopting double-layer energy-saving oxidation ditch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201831350U CN201512452U (en) | 2009-09-29 | 2009-09-29 | MBR device adopting double-layer energy-saving oxidation ditch |
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| CN201512452U true CN201512452U (en) | 2010-06-23 |
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| CN2009201831350U Expired - Fee Related CN201512452U (en) | 2009-09-29 | 2009-09-29 | MBR device adopting double-layer energy-saving oxidation ditch |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010062A (en) * | 2010-12-28 | 2011-04-13 | 北京碧水源科技股份有限公司 | MBR wastewater treating system with double circular grooves |
| CN105948419A (en) * | 2016-07-18 | 2016-09-21 | 胡勇飞 | Oxidation ditch sewage treatment system and using method thereof |
| CN106082537A (en) * | 2016-07-18 | 2016-11-09 | 程晨 | Use oxidation ditch system and the operational approach thereof of immobilized microorganism ball |
| CN109879554A (en) * | 2019-04-23 | 2019-06-14 | 广西卓远环保科技有限公司 | A kind of pulling flow type membrane bioreactor |
-
2009
- 2009-09-29 CN CN2009201831350U patent/CN201512452U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010062A (en) * | 2010-12-28 | 2011-04-13 | 北京碧水源科技股份有限公司 | MBR wastewater treating system with double circular grooves |
| CN105948419A (en) * | 2016-07-18 | 2016-09-21 | 胡勇飞 | Oxidation ditch sewage treatment system and using method thereof |
| CN106082537A (en) * | 2016-07-18 | 2016-11-09 | 程晨 | Use oxidation ditch system and the operational approach thereof of immobilized microorganism ball |
| CN109879554A (en) * | 2019-04-23 | 2019-06-14 | 广西卓远环保科技有限公司 | A kind of pulling flow type membrane bioreactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GARDEN ENVIRONMENTAL PROTECTION CO., LTD. Free format text: FORMER NAME: FUZHOU GARDEN ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 350000 Gulou District, Fuzhou, Fuzhou Software Park, No. 89, software park, building C, No. 27 Patentee after: GARDEN ENVIRONMENTAL PROFECTION Address before: 350000, No. 29, building A, zone five, Fuzhou Software Park, 89 software Avenue, Gulou District, Fujian, Fuzhou Patentee before: Fuzhou Garden Environmental Protection Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20180929 |