CN101157500A - Equipment for deweighting city sewage sludge by MBR combined with helminth attaching biological bed - Google Patents
Equipment for deweighting city sewage sludge by MBR combined with helminth attaching biological bed Download PDFInfo
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- CN101157500A CN101157500A CNA2007101443187A CN200710144318A CN101157500A CN 101157500 A CN101157500 A CN 101157500A CN A2007101443187 A CNA2007101443187 A CN A2007101443187A CN 200710144318 A CN200710144318 A CN 200710144318A CN 101157500 A CN101157500 A CN 101157500A
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Abstract
A device using an MBR-combined-worm attaching type biological bed for decreasing the amount of sludge in city sewage is disclosed. The invention belongs to the technical field of sludge treatment with biological technology and relates in particular to an MBR-worm attaching type biological bed combined system. The system overcomes the shortcomings of high sludge concentration and high membrane pollution frequency of the prior sludge decrement equipment with membrane biological reaction, and consists of a membrane biological reactor, a first dredge pump 30, a second dredge pump 31 and a worm attaching type biological bed Y, wherein, the entrance of the worm attaching type biological bed Y communicates with the bottom of one side of a tank body 13 of the membrane biological reactor via the first dredge pump, and the exit of the worm attaching type biological bed Y communicates with the bottom of the other side of the tank body 13 of the membrane biological reactor via the second dredge pump. The sludge decrement can exceed 95 percent and the outlet water has excellent quality, so the reclaimed water reuse can be realized.
Description
Technical field
The invention belongs to and utilize biotechnology to handle the technical field of mud, particularly MBR and helminth attaching biological bed combined system.
Background technology
Sewage sludge brings serious environmental pollution problem day by day as the inevitable outcome in the sewage treatment process.City domestic sewage is handled through conventional activated sludge process and AB method, and 48% and 58% of water inlet BOD can be converted into mud, and its output accounts for 0.5 to 1.0% of total processing water yield, and truly the BOD of oxygenolysis only accounts for 42% and 34%.Therefore, for most of sewage disposal, the water inlet pollutent will transform to nature with the form of sewage sludge.
The wastewater treatment in China rate by 2000 33.15% bring up to 56% of the end of the year 2006,06 year China municipal sewage plant sludge discharged amount (dry weight) be approximately 9,900,000 tons, also will increase progressively with 10% year rate of rise, this will bring continuing to increase of sewage sludge total amount.Sewage sludge is a kind of potential Hazardous substances, wherein is rich in objectionable impuritiess such as organism, heavy metal, pathogenic microorganism, deals with improperly to cause serious environmental problem or even catastrophic ecological consequence.
Sewage sludge is handled with utilizing technology and is lagged far behind the development of sewage disposal technology, becomes the advanced problems that restriction China ecotope develops.MBR (membrane bio-reaction system) mud metabolic balance technology and sludge organism predation technology has obtained concern widely because of processing mechanism with " pure ecology ", lower processing cost and good mud decrement effect.Utilize MBR to realize the research history that the associated treatment of sewage and mud had 16 years abroad, finished the experimental study of city domestic sewage pilot scale, even set up the demonstration project of suitability for industrialized production scale.As notification number is the patent of 1245337 " reducing biological sludge equipment ".But MBR activated sludge concentration height, sludge age is long, form is thin and do not reunite, have higher viscosity and SVI value, above-mentioned shortcoming has improved film and has polluted the frequency that takes place, bring the raising of processing cost, limited MBR and increased the application and the practice of CONTROL PROCESS as main mud, demand urgently developing can improve the MBR active sludge, the subsystem of modification, decrement.
Summary of the invention
The purpose of this invention is to provide the equipment of a kind of MBR combined with helminth attaching biological bed,, realize the mud decrement of " pure ecology " to solve the existing reluctant bottleneck problem of sewage treatment process mud to the city sewage and sludge decrement.It is made up of membrane bioreactor, sludge pump 30, No. two sludge pumps 31 and helminth attaching biological bed Y, the inlet of helminth attaching biological bed Y is by the bottom of tank body 13 1 sides of sludge pump 30 connection membrane bioreactors, and the outlet of helminth attaching biological bed Y is by the bottom of tank body 13 opposite sides of No. two sludge pump 31 connection membrane bioreactors.
The present invention first with the MBR membrane bioreactor with based on helminth attaching biological bed the combining of microorganism predation technology and design the high-efficient integrated system of sewage sludge associated treatment.Be the single microfauna that adheres to worm in the present invention design helminth attaching biological bed, its directional induction anchored on the filler, thereby realize separating of microfauna stable growth and movement thereof and mud according to its physiological property; Simultaneously with it as bypass subsystem and the coupling of MBR microbial film Sewage treatment systems, thereby reach the effect of sewage and mud associated treatment thereof, and prey on improvement modification and the decrement that characteristic (poly-the effect of bacterium for anthelminthic predation is taken place) realizes mud to microfauna is counter by bacterium.This process need not to add chemical reagent, not to any poisonous and harmful refuse of environmental emission, and can realize that sludge concentration reduces in the membrane bioreactor, sludge activity strengthens, film pollutes effects such as occurrence frequency is minimized.
The membrane bioreactor of using (MBR) reduces 60% than traditional sludge method sludge yield separately, but sludge age is long, sludge concentration is higher, causes film to pollute frequent the generation.High concentration sludge among the MBR is disposed to helminth attaching biological bed, and through the predation of worm, 73% mud obtains thorough mineralising, 2% and is used for the spontaneous increment of worm, and remaining 25% becomes the drainage refuse, and the mud decrement effect surpasses more than 70%.Excess sludge (sewage sludge+drainage refuse+a small amount of worm) through helminth attaching biological bed processing is back in the MBR reactor, further degrade by mud bacterium in the MBR, can excite the sludge activity among the MBR, improve sludge settling property, realize improvement modifying function mud.MBR combined with helminth attaching biological bed total system can realize that than traditional activated sludge process mud decrement surpasses 95%, and film pollutes frequency and reduces by 30%.
The present invention has realized the mud decrement effect of efficient stable when wastewater efficient is handled, reach the effect of " pure ecology " sewage sludge associated treatment.Mud decrement surpasses 95%, can obtain good effluent quality, water reuse in the realization.
Description of drawings
Fig. 1 is a structural representation of the present invention, and Fig. 2 is helminth attaching biological bed structural representation, and Fig. 3 is the structural representation of worm lamina affixad in the embodiment one, and Fig. 4 is that the A of Fig. 3 is to view.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1 to Fig. 4.Present embodiment is made up of membrane bioreactor, sludge pump 30, No. two sludge pumps 31 and helminth attaching biological bed Y, the inlet of helminth attaching biological bed Y is by the bottom of tank body 13 1 sides of sludge pump 30 connection membrane bioreactors, and the outlet of helminth attaching biological bed Y is by the bottom of tank body 13 opposite sides of No. two sludge pump 31 connection membrane bioreactors.
Helminth attaching biological bed Y is by container 8, polylith flow deflector 7, aerating apparatus 6 and polylith worm lamina affixad 9 are formed, the front end place of container 8 has inlet 8-1, the rear end of container 8 has outlet 8-2, polylith flow deflector 7 is distributed to outlet 8-2 from inlet 8-1 successively in container 8, polylith flow deflector 7 be crisscross arranged up and down successively so that enter in the container 8 fluid up and down baffling flow out, aerating apparatus 6 is arranged on the bottom in the container 8, between the flow deflector 7 of vertically-arranged and be flow channels 8-3 between flow deflector 7 and container 8 sidewalls, worm lamina affixad 9 along the length direction setting of flow channels 8-3 wherein, worm lamina affixad 9 is by metal grid veil 9-1 and be separately fixed at two lip-deep filled film 9-2 of metal grid veil 9-1 and form, the length direction of metal grid veil 9-1 is set to wavy, filled film 9-2 is the staggered rolling panel that forms of polypropylene fibre bundle or polyethylene fibre bundle, leave diameter or width between polypropylene fibre bundle or the polyethylene fibre bundle and be 0.1 to 0.5mm hole or slit 9-2-1, filled film 9-2 surface attachment has polypropylene fibre bundle or polyethylene cilium 9-2-2.
Sewage enters the tank body 13 of membrane bioreactor, and microorganism self the katabolism effect in MBR of most of organism obtains degraded in the sewage.Sewage after the processing filters water outlet through hollow fiber film assembly 11 under the effect of vacuum pumping system.The sewage sludge mixed solution of high density pumps into helminth attaching biological bed Y through a sludge pump 30, surpasses 10 in appendix density
5Individual/m
2Worm effect down, sludge concentration descends, residual sludge reflux is to the MBR reactor.
Before use is helminth attaching biological bed, need its orientation be bonded on the filled film to the worm inducing culture.To be tiled in by the filled film that PP (polypropylene), PE (polyethylene) fibrous bundle are rolled among the mixed liquid of mud, make it fall to mud moisture interface, evenly placement has been cultivated sophisticated being mingled with and has been with the silk earthworm thereon, and keeps it highly to be lower than liquid level, cultivates 24h.Because " the going after profit or gain property " of microorganism is mingled with band silk earthworm in order to obtain food, will certainly bore the hole of filled film, head stretching, extension is downwards goed deep into mud and is ingested; And, being mingled with band silk earthworm in order to breathe because the covering of mud causes the local anoxic in filled film bottom, afterbody extends upwardly to the water of filled film bottom.Through the cultivation of 24h, existing part is mingled with the elasticity hole that band silk earthworm bored filled film and adheres on it, and the band silk earthworm that do not adhere to of flush away is reentered into filled film in the mixed liquid of fresh muddy water gently, and places the new band silk earthworm that is mingled with thereon.Repeat aforesaid operations 5 to 6 times, it is downward to obtain to be mingled with band silk earthworm head, the upwards directed highdensity filled film that adheres to of afterbody, orientation is attached to filler, a part is eliminated because of incompatibility external conditions, another part is washed off when changing clothes mud, adheres to so the major part of adhering on filled film is an orientation.This filled film is fixed on the corrugated wire netting, promptly makes helminth attaching biological bed interior filled film.
Utilize large-scale worm---the special life habit that is mingled with band silk earthworm is bonded to its orientation on the filler, make worm stable growth to high-density, thereby the directed mud ecosystem food chain that prolongs, by being mingled with band silk earthworm the predation of mud bacterium is realized mud decrement, and by the anti-predation of bacterium to worm, excite sludge activity, improve sludge settling property, realize the discharging of " pure ecology " mud decrement.
Because being mingled with band silk earthworm is little aerobic microfauna, so be furnished with aerating apparatus in container 8 bottoms, passes flow deflector and filled film, carries out little aeration, breathe for being mingled with band silk earthworm.
The present invention selects for use to be mingled with and is with a silk earthworm to be microfauna population main in this device.Be mingled with band silk earthworm and have unique life habit, that is: head gos deep into mud, and mud is ingested; In the vertical entry of afterbody, in water, take in oxygen, breathe by swing.Therefore, by to being mingled with the inducing culture of band silk earthworm, its orientation can be attached on the filler.And being mingled with band silk earthworm is one of mud decrement effect microfauna with the best of generally acknowledging, can realize the decrement of mud more than 70% by its effect of ingesting.
Because the filled film undulate, so it is more to meet the adsorbed sewage sludge solid of the one side that flows to the mixed liquid of mud, the directed set that is mingled with band silk earthworm can guarantee effectively that it fully contacts with mud.On the surface of filled film, be covered with cilium different in size, but the mud bacterium in the mixed liquid of active adsorption mud, sludge components such as degradation of organic substances, cell debris not provides worm to contact with mud and has carried out the suitable place of predation.Simultaneously, strong alleviation the impact load of the mixed liquid of mud to the influence of worm growth.The main effect of flow deflector is to guarantee fully contacting of the mixed liquid of mud and worm.
This device is implemented little aeration, and most of aerobic microbiologicals also are difficult to existence in bed, thereby have reduced an interior interspecific competition.In addition,, fundamentally solved the problem that worm is run off with mixed liquid, can be used as an interior dominant population stable growth so be mingled with band silk earthworm because the filler setting of uniqueness of the present invention makes to be mingled with stable being bonded on the filler of band silk earthworm.
The present invention combines the MBR membrane bioreactor with helminth attaching biological bed, on the one hand by giving independently growing space and being easy to unique filler of giving birth to of worm, stable growth of worm population in the biological bed and good decrement effect thereof have been guaranteed, by worm improvement, modification, the decrement effect of mud excited sludge activity in the MBR on the other hand, reduce the MBR film and polluted frequency, improved MBR sewage disposal usefulness, its mud decrement effect is remarkable.
MBR+ of the present invention is helminth attaching biological bed to the city sewage and sludge Decrement Technique, the every advantage that not only has the MBR membrane bioreactor, and deficiencies such as the MBR film is seriously polluted, mud poor performance have been solved, under the prerequisite of the good operation of Sewage treatment systems, realize the Ecological Disposal of mud, the reuse of sewage, closely realized the associated treatment of municipal effluent and sewage sludge.
Sludge concentration is that the muddy water mixed solution of 10g/L pumps into the biological bed of worm tack through sludge pump, surpasses 10 in appendix density
5Individual/m
2Under the worm effect, sludge concentration reduces to 2.67 to 3.83g/L, and the mud decrement ratio is 70%, and residual sludge reflux is to the MBR reactor.
Embodiment two: specify present embodiment below in conjunction with Fig. 1.Membrane bioreactor comprises membrane module 11, tank body 13, aerating apparatus 10, vacuum pumping system 18 in the present embodiment, membrane module 11 is arranged on the middle part in the tank body 13, aerating apparatus 10 is arranged on membrane module 11 belows, and the top that vacuum pumping system 18 penetrates tank body 13 is connected in the outlet of membrane module 11 and discharges with the water after membrane module 11 is handled.
Water temperature 15 to 25 degree in the tank body 13, the polyvinylidene difluoride (PVDF) tubular fibre micro-filtration curtain type film assembly that membrane module 11 adopts film sky, Tianjin technology company to produce, membrane pore size is 0.22 μ m, the interior external diameter of hollow-fibre membrane is respectively 0.5mm and 0.8mm.The membrane area of every membrane module is 12.5m
2, physical dimension is s=1.07m * 0.7m=0.749m
2The MBR reactor volume is: long (L) * wide (W) * height (H)=1.6 * 1.0 * 2.0=3.2m
3
Hydraulic detention time is that dissolved oxygen is not less than 0.5mg/L in the mixed solution about 12 hours in helminth attaching biological bed, water temperature 15 to 25 degree, and pH 6 to 9, and the volume of container 8 is: long (L) * wide (W) * height (H)=1.6 * 1.0 * 2.0=3.2m
3
Check the treatment effect of the present invention below to sanitary sewage:
The independent membrane bioreactor of using (MBR), water inlet COD mean value is 450mg/L, and ammonia nitrogen mean value is 37mg/L, and it is stable less than 30mg/L to handle back water outlet COD, and ammonia nitrogen is stable to be lower than 1mg/L, and sludge yield reduces by 60% than the traditional sludge productive rate.The MBR sludge concentration is up to more than the 15g/L to 25g/L, and film pollutes frequent.High concentration sludge among the MBR be disposed to helminth attaching biological bed in, helminth attaching biological bed in biotic population metazoan diversity index d＜0.6, worm appendix density surpasses 10 in the biological bed
5Individual/m
2, can reduce to 2.67g/L to 3.83g/L through the predation sludge concentration of worm, realize that mud decrement is more than 70%.Lower concentration residual sludge reflux after the worm predation is to the MBR reactor, and keeping the interior sludge concentration of MBR reactor is 10g/L, thereby realizes that MBR combined with helminth attaching biological bed total system mud decrement is more than 95%.
(1) to the COD of sewage removal effect: the helminth attaching biological bed combination process of observation MBR+ is to the COD of sewage removal effect in 120 days, the MBR stable water outlet is about 30mg/L, and sewage is through helminth attaching biological bed, and fluctuating widely does not appear in effluent COD concentration, and system is stable.The COD clearance of total system is stabilized in more than 95%, and these clearances are to be result under 2.75 hours in total residence time, this means that this reactor efficiency is higher, more stable.
(2) to sewage NH
4 +-H removal effect: the MBR reactor is to NH
4 +-H clearance reaches more than 99%, and the enrichment in reactor of this and nitrobacteria is closely related.In 40 days of operation, total system water inlet NH4
+ -The about 37mg/L of H, the water outlet ammonia nitrogen concentration is stable to be lower than below the 1mg/L, system stable fine.
(3) to sewage SS removal effect: contain a large amount of SS (solid suspension substrate concentration in the sanitary sewage, Suspended solid), wherein SS content accounts for 20 to 50% of total COD, the MBR reactor has removal effect completely to SS, clearance reaches 100%, helminth attaching biological bed to SS without any influence, total system water outlet SS is 0mg/L.This has embodied the advantage of MBR reactor, and SS is blocked in reactive system and degrades, and the phenomenon that sludge activity that the accumulation because of suspended substance causes reduces do not occur.
(4) to sewage turbidity removal effect: reuse water requires turbidity to be lower than 10NTU, and the sanitary sewage influent turbidity is about 200 to 300 NTU, and the MBR reactor has almost completely removal ability to turbidity, and delivery turbidity is near 0 NTU.This is that the high-concentration activated sludge in the MBR reactor has Degradation more completely to the organism in the sewage because millipore filtration has complete interception capacity to the suspension zone.120 days operation result shows that combined process system has removal effect completely to sanitary sewage as degree, and delivery turbidity is far below the reuse water standard.
(5) to the sewage chromaticity removing effect: sanitary sewage has higher colourity, this combined system has the removal situation of good sanitary sewage colourity, can be reduced to below 20 times, the clearance of MBR can reach 80 to 90%, in 120 day working time, although water inlet colour fluctuation scope is at 90 to 130 times, effluent color dilution is stabilized in below 20 times always, has shown shock resistance degree and the ability and the stability of this system.
(6) effect of mud decrement: sludge concentration is 2.67g/L to 3.83g/L in the mixed solution of helminth attaching biological bed backflow, efficient predation by worm, control MBR sludge concentration is the 10g/L effect, and MBR combined with helminth attaching biological bed total system surpasses 95% than traditional activated sludge process mud decrement effect.
(7) improvement of sludge settling property: effusive sanitary sewage mud mixed liquid sedimentation hardly in the MBR reactor, SVI value be up to 180-200mL/g, SV
30At 85-97%, through after the helminth attaching biological bed processing, the SVI value of backflow mixed liquor is reduced to below the 100mL/g SV
30Also drop to 40-50%, settling property is better, pollutes frequency thereby reduced the MBR film.
(8) enhancing of sludge activity: through the 140d days running, effusive sanitary sewage mud mixed liquid oxygen consumption rate (OUR) is low to moderate 0.14mgO most in the MBR reactor
2/ gMLSSmin shows that this sludge activity reduces the degradation of substrates decrease in efficiency in the sanitary sewage; This mixed solution is after helminth attaching biological bed processing, and the backflow mixed liquor oxygen consumption rate raises, and the OUR value on average rises to 0.25mgO
2/ gMLSSmin shows that sludge activity is enhanced, and then has improved wastewater treatment efficiency.
Embodiment three: specify present embodiment below in conjunction with Fig. 1.The difference of present embodiment and embodiment one is: it also comprises equalizing tank 4 and two gate valves 2, membrane bioreactor tank body 13 outlet link to each other with a sludge pump 30 through gate valves 2, the outlet of a sludge pump 30 is communicated with the inlet of equalizing tank 4, and the outlet of equalizing tank 4 connects the inlet 8-1 of helminth attaching biological bed Y by gate valve 2.
Claims (5)
1. a MBR combined with helminth attaching biological bed is to the equipment of city sewage and sludge decrement, it is characterized in that it is made up of membrane bioreactor, a sludge pump (30), No. two sludge pumps (31) and helminth attaching biological bed (Y), the inlet of helminth attaching biological bed (Y) is by the bottom of tank body (13) one sides of a sludge pump (30) connection membrane bioreactor, and the outlet of helminth attaching biological bed (Y) is communicated with the bottom of tank body (13) opposite side of membrane bioreactor by No. two sludge pumps (31).
2. MBR combined with helminth attaching biological bed according to claim 1 is to the equipment of city sewage and sludge decrement, it is characterized in that helminth attaching biological bed (Y) is by container (8), polylith flow deflector (7), aerating apparatus (6) and polylith worm lamina affixad (9) are formed, the front end place of container (8) has inlet (8-1), the rear end of container (8) has outlet (8-2), polylith flow deflector (7) is evenly distributed to outlet (8-2) from inlet (8-1) in container (8), polylith flow deflector (7) is crisscross arranged up and down successively so that enter the baffling outflow up and down of the interior fluid of container (8), aerating apparatus (6) is arranged on the bottom in the container (8), between the flow deflector of vertically-arranged (7) and be flow channels (8-3) between flow deflector (7) and container (8) sidewall, polylith worm attachment filler plate (9) along the length direction setting of flow channels (8-3) wherein, worm lamina affixad filler (9) is by metal grid veil (9-1) and be separately fixed at two lip-deep filled films of metal grid veil (9-1) (9-2) and form, the length direction of metal grid veil (9-1) is set to wavy, filled film (9-2) is polypropylene fibre bundle or the staggered rolling panel that forms of polyethylene fibre bundle, leave diameter or width between polypropylene fibre bundle or the polyethylene fibre bundle and be 0.1 to 0.5mm hole or slit (9-2-1), filled film (9-2) surface attachment has polypropylene fibre bundle or polyethylene cilium (9-2-2), and filled film is that microfauna adheres to and the main place of sludge predation.
3. city sewage and sludge decrement treatment according to claim 2 helminth attaching biological bed is characterized in that the main microfauna population that adheres on the filled film (9-2) is to be mingled with a band silk earthworm.
4. MBR combined with helminth attaching biological bed according to claim 1 is to the equipment of city sewage and sludge decrement, it is characterized in that it also comprises equalizing tank (4) and two gate valves (2), membrane bioreactor tank body (13) outlet link to each other with a sludge pump (30) through gate valve (2), the outlet of a sludge pump (30) is communicated with the inlet of equalizing tank (4), and the outlet of equalizing tank (4) connects the inlet (8-1) of helminth attaching biological bed (Y) by gate valve (2).
5. MBR combined with helminth attaching biological bed according to claim 1 is to the equipment of city sewage and sludge decrement, it is characterized in that membrane bioreactor comprises membrane module (11), tank body (13), aerating apparatus (10), vacuum pumping system (18), membrane module (11) is arranged on the middle part in the tank body (13), aerating apparatus (10) is arranged on membrane module (11) below, and the top that vacuum pumping system (18) penetrates tank body (13) is connected in the outlet of membrane module (11) with the water discharge after membrane module (11) is handled.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101443187A CN100534927C (en) | 2007-09-14 | 2007-09-14 | Equipment for deweighting city sewage sludge by MBR combined with helminth attaching biological bed |
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|---|---|---|---|
| CNB2007101443187A CN100534927C (en) | 2007-09-14 | 2007-09-14 | Equipment for deweighting city sewage sludge by MBR combined with helminth attaching biological bed |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101786717B (en) * | 2010-02-05 | 2011-09-21 | 哈尔滨工业大学 | Excess sludge reduction bioreactor with variable aeration and worm attachment oblique plate |
| CN102807304A (en) * | 2012-07-05 | 2012-12-05 | 广东工业大学 | Multilayer distributed worm reactor for urban sludge reduction treatment |
| CN102849842A (en) * | 2011-06-28 | 2013-01-02 | 天津万联管道工程有限公司 | Prefabricated membrane biological reaction tank for sewage treatment |
| CN103043873A (en) * | 2013-01-23 | 2013-04-17 | 哈尔滨工业大学 | Sewage treatment device of membrane bioreactor/microbial fuel cell |
| CN103588355A (en) * | 2013-10-15 | 2014-02-19 | 常州思宇环保材料科技有限公司 | Device for removing high-concentration ammonia nitrogen in waste water |
| CN104876327A (en) * | 2015-04-17 | 2015-09-02 | 大连理工大学 | Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor |
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| CN101786717B (en) * | 2010-02-05 | 2011-09-21 | 哈尔滨工业大学 | Excess sludge reduction bioreactor with variable aeration and worm attachment oblique plate |
| CN102849842B (en) * | 2011-06-28 | 2015-12-16 | 天津合生鑫环保设备有限公司 | For the prefabricated membrane biological reactor of sewage disposal |
| CN102849842A (en) * | 2011-06-28 | 2013-01-02 | 天津万联管道工程有限公司 | Prefabricated membrane biological reaction tank for sewage treatment |
| CN102807304A (en) * | 2012-07-05 | 2012-12-05 | 广东工业大学 | Multilayer distributed worm reactor for urban sludge reduction treatment |
| CN103043873A (en) * | 2013-01-23 | 2013-04-17 | 哈尔滨工业大学 | Sewage treatment device of membrane bioreactor/microbial fuel cell |
| CN103043873B (en) * | 2013-01-23 | 2013-10-30 | 哈尔滨工业大学 | Sewage treatment device of membrane bioreactor/microbial fuel cell |
| CN103588355A (en) * | 2013-10-15 | 2014-02-19 | 常州思宇环保材料科技有限公司 | Device for removing high-concentration ammonia nitrogen in waste water |
| CN104876327A (en) * | 2015-04-17 | 2015-09-02 | 大连理工大学 | Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor |
| CN105110576A (en) * | 2015-09-25 | 2015-12-02 | 哈尔滨工业大学 | A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof |
| CN105129976A (en) * | 2015-09-25 | 2015-12-09 | 哈尔滨工业大学 | Integrated MBR (Membrane) and micro-fauna biological bed combination device |
| CN105110477A (en) * | 2015-09-25 | 2015-12-02 | 哈尔滨工业大学 | Miniature animal attaching packing |
| CN105110477B (en) * | 2015-09-25 | 2017-11-03 | 哈尔滨工业大学 | A kind of microfauna attachment filler |
| CN116813124A (en) * | 2023-06-26 | 2023-09-29 | 哈尔滨工业大学 | Sewage recycling self-adaptive multi-membrane integrated device and application method thereof |
| CN116813124B (en) * | 2023-06-26 | 2024-06-04 | 哈尔滨工业大学 | Sewage recycling self-adaptive multi-membrane integrated device and application method thereof |
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| CN100534927C (en) | 2009-09-02 |
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