CN104016482A - Cyclic AO high nitrogenous organic waste water treatment device based on MBR - Google Patents
Cyclic AO high nitrogenous organic waste water treatment device based on MBR Download PDFInfo
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- CN104016482A CN104016482A CN201410251393.3A CN201410251393A CN104016482A CN 104016482 A CN104016482 A CN 104016482A CN 201410251393 A CN201410251393 A CN 201410251393A CN 104016482 A CN104016482 A CN 104016482A
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Abstract
The invention relates to a water treatment device. The invention provides a cyclic AO high nitrogenous organic waste water treatment device based on an MBR. The cyclic AO high nitrogenous organic waste water treatment device based on the MBR comprises a reactor with a water storage cavity and a control device, wherein the reactor is connected with a water inlet device, an aeration device and a membrane water outlet device, a membrane biological reactor is arranged in the water storage cavity of the reactor, the water feeding device comprises a water inlet pope, the aeration device comprises an aeration pipe, the MBR is suspended above the water inlet pipe, the MBR is suspended above the aeration pipe, the MBR is connected with the membrane water outlet device, and the water inlet device, the aeration device and the membrane water outlet device are respectively connected with the control device. The cyclic AO high nitrogenous organic waste water treatment device based on the MBR has the beneficial effects that aeration rate is reduced, less sludge is discharged, control is simple, and daily maintenance management is simple, so that water quality is guaranteed; the MBR is not polluted easily, cost is low, occupying area is small, and maintenance is convenient.
Description
Technical field
The present invention relates to water treatment device, relate in particular to the high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR in water treatment device.
Background technology
Along with the increase of China's urban population and the expansion of city size, its treatment unit of high ammonia nitrogen organic waste water (if percolate, low C/N are than sewage etc.) has become the technical need that current environment field is badly in need of.Current, wastewater denitrification process is mainly biological denitrification process, mainly comprises aerobic (Anoxic) nitrated and two stages of anoxic (Oxic) denitrification.Because waste water exists carbon resource shortage problem, and be subject to the restriction of microorganism, denitrification effect is difficult to ensure.The denitrification percent of traditional biological denitrification process is mainly subject to the restriction of microorganism concn, is also subject to the control of nitrification liquid quantity of reflux and sludge reflux amount, in order to reach higher denitrification percent, will improve quantity of reflux, but quantity of reflux is crossed conference and affected the efficiency of denitrogenation dephosphorizing; Because of carbon source deficiency (low C/N is than sewage), traditional Nitrogen removal effect is difficult to ensure simultaneously.Membrane bioreactor (MBR), by greatly improved the microorganism concn in reactor by film crown_interception, makes dissimilar microorganism be able to enrichment and growth, has improved removal effects such as organism, nitrogen and phosphorus.But there is following problem in traditional MBR: one, aeration intensity is very large, and energy consumption is higher; Two, regular spoil disposal, it is large that excess sludge is disposed difficulty; Three, technology controlling and process is loaded down with trivial details, and routine maintenance difficult management makes effluent quality be difficult to ensure; Four, film easily pollutes.In sum, all there is the problems such as technology controlling and process is loaded down with trivial details, maintenance management is complicated in above sewage treatment process, and the system effluent quality of making is difficult to ensure, and existence is invested and running cost is high, takes up an area the problems such as large.
Summary of the invention
In order to solve the problems of the prior art, the invention provides the high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR.
The invention provides the high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR, comprise reactor and the control device with water storage cavity, described reactor is connected with water feed apparatus, aerating apparatus and film discharging device, in the water storage cavity of described reactor, be provided with membrane bioreactor, described water feed apparatus comprises the water inlet pipe being arranged in described water storage cavity, described aerating apparatus comprises the aeration tube being arranged in described water storage cavity, described membrane bioreactor is suspended from described water inlet pipe, described membrane bioreactor is suspended from described aeration tube, described membrane bioreactor is connected with described film discharging device, described water feed apparatus, aerating apparatus is connected with described control device respectively with film discharging device.
As a further improvement on the present invention, described in state in the water storage cavity of reactor and be provided with flow deflector, described flow deflector encloses upwards circulation road, described in described membrane bioreactor is arranged on upwards in circulation road.
As a further improvement on the present invention, described aeration tube is provided with solarization air cap, the bottom of described upwards circulation road is input terminus, the top of described upwards circulation road is output terminal, described in described solarization air cap is positioned at upwards under the input terminus of circulation road or within, described solarization air cap is positioned under described film discharging device.
As a further improvement on the present invention, described water inlet pipe is provided with prosopyle, the bottom of described upwards circulation road is input terminus, the top of described upwards circulation road is output terminal, described in described prosopyle is positioned at upwards under the input terminus of circulation road or within, described prosopyle is positioned under described film discharging device.
As a further improvement on the present invention, between the top of the water storage cavity of the top of described upwards circulation road and described reactor, be provided with the gap, top to side circulation for fluid, between the sidepiece of the water storage cavity of the sidepiece of described upwards circulation road and described reactor, be provided with for the fluid side clearance of circulation downwards, between the bottom of the water storage cavity of the bottom of described upwards circulation road and described reactor, be provided with for the fluid gap, the end of circulation downwards.
As a further improvement on the present invention, within described aeration tube, water inlet pipe are all positioned at gap, the described end.
As a further improvement on the present invention, gap, the described end is acidication district, and described side clearance is oxygen-starved area, and described upwards circulation road is film reaction district.
As a further improvement on the present invention, in the water storage cavity of described reactor, be provided with biologic packing material.
As a further improvement on the present invention, described aeration tube is positioned on described water inlet pipe.
As a further improvement on the present invention, the top of described membrane bioreactor is connected with described film discharging device.
The invention has the beneficial effects as follows: pass through such scheme, in the water storage cavity of reactor, form aerobic (Anoxic) nitrated and denitrifying circulation of anoxic (Oxic), first, can suppress the growth of nitrite nitrifier, be nitrite but not nitrate and promote to realize Ammonia Nitrification; Secondly, can promote that the nitrite producing is removed by denitrification in time efficiently, promote the raising of nitric efficiency, overcome the defect of the common process such as AO or two-stage AO; Again, cancel nitrification liquid backflow and promoted denitrification denitrogenation, saved the required energy consumption etc. that refluxes; Finally, membrane bioreactor can improve biomass and biological species; Saved aeration rate, reduced sludge volume, controlled simply, routine maintenance management is simple, and effluent quality is guaranteed; Membrane bioreactor is not easy to be polluted, and cost is lower, and floor space is less, easy to maintenance.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of high nitrogenous organic waste-water treating apparatus of circulating AO based on MBR of the present invention.
Embodiment
Below in conjunction with brief description of the drawings and embodiment, the present invention is further described.
Drawing reference numeral in Fig. 1 is: water inlet pipe 1; Acidication district 2; Membrane bioreactor 3; Oxygen-starved area 4; Aeration tube 5; Film discharging device 6; Flow deflector 7; Control device 8; Biologic packing material 9; Reactor 10.
For the water quality characteristic of the nitrogenous organic waste water of China's high density, in conjunction with the progress of nearest denitrogenation theory and MBR, the present invention proposes the high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR.
The high nitrogenous organic waste-water treating apparatus of circulating AO that the present invention is based on MBR, accompanying drawing 1 is shown in by structure iron, is mainly made up of acidication, circulating anoxic (A)/processes such as aerobic (O).
As shown in Figure 1, the high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR, comprise reactor 10 and the control device 8 with water storage cavity, described reactor 10 can be container, structures (as pond) etc., described reactor 10 is connected with water feed apparatus, aerating apparatus and film discharging device, in the water storage cavity of described reactor 10, be provided with membrane bioreactor 3, described water feed apparatus comprises the water inlet pipe 1 being arranged in described water storage cavity, described aerating apparatus comprises the aeration tube 5 being arranged in described water storage cavity, described membrane bioreactor 3 is suspended from described water inlet pipe 1, described membrane bioreactor 3 is suspended from described aeration tube 5, described membrane bioreactor 3 is connected with described film discharging device 6, described water feed apparatus, aerating apparatus is connected with described control device 8 respectively with film discharging device 6, control respectively described water feed apparatus by described control device 8, aerating apparatus and film discharging device 6.
As shown in Figure 1, in the described water storage cavity of stating reactor 10, be provided with flow deflector 7, described flow deflector 7 encloses upwards circulation road, described in described membrane bioreactor 3 is arranged on upwards in circulation road, the water that described water inlet pipe 1 is inputted can upwards flow and enter in described membrane bioreactor 3 along described upwards circulation road, and the gas that described aeration tube 5 is inputted equally also can upwards flow and enter in described membrane bioreactor 3 along described upwards circulation road.
As shown in Figure 1, described upwards circulation road is perpendicular to horizontal plane, and straight up, described upwards circulation road also can form angle with horizontal plane, is tilted to.
As shown in Figure 1, described flow deflector 7 can enclose cylindric.
As shown in Figure 1, described aeration tube 5 is provided with solarization air cap, described solarization air cap can be multiple along axially evenly arranging of described aeration tube 5, form upwards plug-flow, the bottom of described upwards circulation road is input terminus, the top of described upwards circulation road is output terminal, described in described solarization air cap is positioned at upwards under the input terminus of circulation road or within, described solarization air cap is positioned under described film discharging device 6.
As shown in Figure 1, described water inlet pipe 1 is provided with prosopyle, described prosopyle can be multiple along axially evenly arranging of described water inlet pipe 1, form upwards plug-flow, the bottom of described upwards circulation road is input terminus, the top of described upwards circulation road is output terminal, described in described prosopyle is positioned at upwards under the input terminus of circulation road or within, described prosopyle is positioned under described film discharging device.
As shown in Figure 1, between the top of the water storage cavity of the top of described upwards circulation road and described reactor 10, be provided with the gap, top to side circulation for fluid, between the sidepiece of the water storage cavity of the sidepiece of described upwards circulation road and described reactor 10, be provided with for the fluid side clearance of circulation downwards, between the bottom of the water storage cavity of the bottom of described upwards circulation road and described reactor 10, be provided with for the fluid gap, the end of circulation downwards.
As shown in Figure 1, within described aeration tube 5, water inlet pipe 1 are all positioned at gap, the described end.
As shown in Figure 1, gap, the described end is acidication district 2, and described side clearance is oxygen-starved area 4, described upwards circulation road is film reaction district, water body, under the effect of water inlet pipe 1 and aeration tube 5, under the guiding of circulation road upwards, forms circulating of acidication district 2, film reaction district, oxygen-starved area 4.
As shown in Figure 1, in the water storage cavity of described reactor 10, be provided with biologic packing material 9.
As shown in Figure 1, described aeration tube 5 is positioned on described water inlet pipe 1.
As shown in Figure 1, the top of described membrane bioreactor 3 is connected with described film discharging device 6.
As shown in Figure 1, by suitable condition control, this device can obtain Nitrogen/Phosphorus Removal well.According to experimental studies results, be 500～1000mg/L for influent quality COD, NH4-N is 50～100 mg/L, processes by this device, water outlet COD and TN average removal rate are 95～98% and 95～98%.Compare with MBR technique with traditional biological denitrification process, save aeration rate approximately 30～40%, occupation of land minimizing is approximately more than 50%, and maintenance management is convenient.
As shown in Figure 1, acidication district 2, is mainly to the acidifying that is hydrolyzed of particle or macromolecular carbon source material in water inlet, is beneficial to be converted into small molecules the organic substance that microorganism utilizes, and uses in order to later stage denitrification.
As shown in Figure 1, film reaction district, is mainly that organism, ammonia nitrogen in water are oxidized, and carries out the reactions such as nitrated and nitrosification, and clear water draws by vacuum pump.Bottom in this film reaction district arranges aerating apparatus, and aeration rate can be determined according to water quality.This device is on the one hand for biological degradation provides necessary dissolved oxygen, on the other hand for sewage flows power is provided at system internal recycle.Because of the crown_interception of membrane bioreactor 3, microorganism concn and kind can improve greatly.
As shown in Figure 1, oxygen-starved area 4, is mainly that the nitrate of water oxygen state, nitrite and other materials are transformed, and completes the reactions such as denitrogenation.
As shown in Figure 1, biologic packing material 9, is mainly the microbial population abundant by the biologic packing material apposition growth of independent development, has not only greatly improved the concentration of microorganism, and has significantly improved biorheology, improves the effect that multiple pollutant is removed.This biologic packing material 9 is distributed in film reaction district and oxygen-starved area 4, and dosage is determined according to water quality.
As shown in Figure 1, this device has following advantage: first can suppress the growth of nitrite nitrifier, be nitrite but not nitrate and promote to realize Ammonia Nitrification; Secondly, can promote that the nitrite producing is removed by denitrification in time efficiently, promote the raising of nitric efficiency, overcome the defect of the common process such as AO or two-stage AO; Again, cancel nitrification liquid backflow and promoted denitrification denitrogenation, saved the required energy consumption etc. that refluxes; Finally, membrane bioreactor 3 and biologic packing material 9 can improve biomass and biological species.
The principle of work of a kind of high nitrogenous organic waste-water treating apparatus of circulating AO based on MBR provided by the invention is: first sewage flow into acidication district 2 through water inlet pipe 1, realizes fully hydrolysis particle or macromole organic carbon source are converted into small molecules organic carbon source.The sewage mixed solution flowing out from acidication district 2 enters film reaction district under the guiding of circulation road upwards, then enter oxygen-starved area 4 through upper gap, start circulating aerobic (Anoxic) nitrated and anoxic (Oxic) denitrification stage, there is nitration denitrification, clear water filters and draws through membrane bioreactor 3 simultaneously, discharge after sterilization.The control of this device mainly, by control device 8, according to indexs such as online ammonia nitrogen and dissolved oxygens, is carried out the control of aeration rate and aeration time.
The advantage of a kind of high nitrogenous organic waste-water treating apparatus of circulating AO based on MBR provided by the invention is: saved aeration rate, reduced sludge volume, controlled simply, routine maintenance management is simple, and effluent quality is guaranteed; Membrane bioreactor is not easy to be polluted, and cost is lower, and floor space is less, easy to maintenance.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR, it is characterized in that: comprise reactor and the control device with water storage cavity, described reactor is connected with water feed apparatus, aerating apparatus and film discharging device, in the water storage cavity of described reactor, be provided with membrane bioreactor, described water feed apparatus comprises the water inlet pipe being arranged in described water storage cavity, described aerating apparatus comprises the aeration tube being arranged in described water storage cavity, described membrane bioreactor is suspended from described water inlet pipe, described membrane bioreactor is suspended from described aeration tube, described membrane bioreactor is connected with described film discharging device, described water feed apparatus, aerating apparatus is connected with described control device respectively with film discharging device.
2. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR according to claim 1, it is characterized in that: described in state in the water storage cavity of reactor and be provided with flow deflector, described flow deflector encloses upwards circulation road, described in described membrane bioreactor is arranged on upwards in circulation road.
3. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR according to claim 2, it is characterized in that: described aeration tube is provided with solarization air cap, the bottom of described upwards circulation road is input terminus, the top of described upwards circulation road is output terminal, described in described solarization air cap is positioned at upwards under the input terminus of circulation road or within, described solarization air cap is positioned under described film discharging device.
4. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR according to claim 2, it is characterized in that: described water inlet pipe is provided with prosopyle, the bottom of described upwards circulation road is input terminus, the top of described upwards circulation road is output terminal, described in described prosopyle is positioned at upwards under the input terminus of circulation road or within, described prosopyle is positioned under described film discharging device.
5. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR according to claim 2, it is characterized in that: between the top of the water storage cavity of the top of described upwards circulation road and described reactor, be provided with the gap, top to side circulation for fluid, between the sidepiece of the water storage cavity of the sidepiece of described upwards circulation road and described reactor, be provided with for the fluid side clearance of circulation downwards, between the bottom of the water storage cavity of the bottom of described upwards circulation road and described reactor, be provided with for the fluid gap, the end of circulation downwards.
6. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR according to claim 5, is characterized in that: within described aeration tube, water inlet pipe are all positioned at gap, the described end.
7. the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR according to claim 5, is characterized in that: gap, the described end is acidication district, and described side clearance is oxygen-starved area, and described upwards circulation road is film reaction district.
8. according to the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR described in any one in claim 1 to 7, it is characterized in that: in the water storage cavity of described reactor, be provided with biologic packing material.
9. according to the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR described in any one in claim 1 to 7, it is characterized in that: described aeration tube is positioned on described water inlet pipe.
10. according to the high nitrogenous organic waste-water treating apparatus of the circulating AO based on MBR described in any one in claim 1 to 7, it is characterized in that: the top of described membrane bioreactor is connected with described film discharging device.
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| CN102701434A (en) * | 2012-07-10 | 2012-10-03 | 哈尔滨工业大学 | Combined self-control membrane bioreactor and method for treating low-temperature low-turbidity high-chroma high-ammonia nitrogen source water using same |
| CN202688082U (en) * | 2012-04-27 | 2013-01-23 | 宜兴市金德环保设备有限公司 | Membrane biological reactor MBR |
| CN202988830U (en) * | 2012-09-13 | 2013-06-12 | 天津嘉万通科技发展有限公司 | High-efficiency membrane bioreactor |
| KR20130090592A (en) * | 2012-02-06 | 2013-08-14 | 주식회사 에코멤브레인 | Advanced treating apparatus of wastewater using membrance its method |
| CN203999132U (en) * | 2014-06-09 | 2014-12-10 | 深圳中清环境科技有限公司 | The high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR |
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- 2014-06-09 CN CN201410251393.3A patent/CN104016482B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130090592A (en) * | 2012-02-06 | 2013-08-14 | 주식회사 에코멤브레인 | Advanced treating apparatus of wastewater using membrance its method |
| CN202688082U (en) * | 2012-04-27 | 2013-01-23 | 宜兴市金德环保设备有限公司 | Membrane biological reactor MBR |
| CN102701434A (en) * | 2012-07-10 | 2012-10-03 | 哈尔滨工业大学 | Combined self-control membrane bioreactor and method for treating low-temperature low-turbidity high-chroma high-ammonia nitrogen source water using same |
| CN202988830U (en) * | 2012-09-13 | 2013-06-12 | 天津嘉万通科技发展有限公司 | High-efficiency membrane bioreactor |
| CN203999132U (en) * | 2014-06-09 | 2014-12-10 | 深圳中清环境科技有限公司 | The high nitrogenous organic waste-water treating apparatus of a kind of circulating AO based on MBR |
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