CN202898109U - System for carrying out sludge reduction by using bypass bioreactor - Google Patents
System for carrying out sludge reduction by using bypass bioreactor Download PDFInfo
- Publication number
- CN202898109U CN202898109U CN 201220462219 CN201220462219U CN202898109U CN 202898109 U CN202898109 U CN 202898109U CN 201220462219 CN201220462219 CN 201220462219 CN 201220462219 U CN201220462219 U CN 201220462219U CN 202898109 U CN202898109 U CN 202898109U
- Authority
- CN
- China
- Prior art keywords
- pool
- pond
- bypass
- mud
- oxygen supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a system for carrying out sludge reduction by using a bypass bioreactor. The system comprises an anaerobic pool, an anoxic pool, an oxygen supply pool and a sedimentation pool in sequential connection, wherein a sludge backflow pipe is arranged between a sludge discharge pipe of the sedimentation pool and the anaerobic pool, the system also comprises the bypass bioreactor, the inside of the bypass bioreactor is separated into a regulating pool and a stirring reaction pool in mutual communication, the regulating pool is communicated with a sludge discharge pipe of the sedimentation pool through a sludge reduction pipe, the regulating pool is communicated with a first oxygen supply device through a pipeline, the stirring reaction pool is communicated with at least one pool of the anaerobic pool, the anoxic pool and the oxygen supply pool through a mixed liquid backflow pipe, and a stirring device is arranged in the stirring reaction pool. The sludge discharged from the sedimentation pool takes reaction in the bypass bioreactor, and is then circulated to a biochemical pool, the sludge reduction goal is reached, and the sludge discharge quantity is controlled from the source.
Description
Technical field
The utility model relates to technical field of sewage, is specifically related to a kind of system that utilizes the bypass bio-reactor to carry out mud decrement.
Background technology
The Eleventh Five-Year Plan period, the sewage disposal industry of China has obtained fast development, and sewage treatment capacity and processing rate rapid development have also brought increasing sharply of sludge yield simultaneously.By the end of the end of the year in 2010, national town sewage treatment capacity reached 34,300,000,000 m
3(seeing Table 1), mud are pressed water ratio 80% and are calculated, and the dewatered sludge amount of generation is above 2,200 ten thousand tons.Chinese Ministry of Environmental Protection's data shows, the mud major part that wastewater treatment in China factory produces does not obtain stabilization, harmless treatment is disposed, most mud are to be sent to the simple landfill for the treatment of of urban garbage factory, even simply stack in the open, mud is arbitrarily stacked the pollution that causes and is highlighted already with pollution problem again.Plan according to " 12 ", to the newly-increased sewage daily handling ability forty-two million ton in the whole nation in 2015, the sewage treatment facility rate of load condensate is brought up to more than 80%, and treatment rate of domestic sewage reaches 85%, and the main construction task of sewage disposal also comprises the sewage sludge harmlessness disposing ability (80%) that improves.Expect 2015 and produce sludge quantity per year above 3,200 ten thousand tons, how to properly settle the secondary pollution problem that excess sludge transportation, mud stacking and ultimate disposal cause, reach 80% harmlessness disposing target and also have very large difficulty and challenge.
The ﹠ Mud technology mainly comprises the post-processing technology of excess sludge and the original position Decrement Technique of mud.Method of disposal mainly comprises sanitary landfill, compost, drying and incineration etc. behind the ripe mud.The relative merits of disposal technology see Table 1 behind all kinds of mud.
The relative merits of disposal technology behind all kinds of mud of table 1
The minimizing of mud source is on the basis of existing activated sludge sewage disposal process, by improving or research and develop new sewage treatment process, guaranteeing that sewage disposal reaches under the prerequisite of emission standard requirement, reduce generation and the quantity discharged of excess sludge as far as possible, reduce the productive rate of mud.Reducing by every means thinking that excess sludge produces from the source and be the new ideas that excess sludge is disposed that propose the nineties in 20th century in sewage treatment process, is further requirement on to excess sludge resource utilization basis.Sludge reduction is by means such as physics, chemistry, biologies, main dependence reduced the microorganism productive rate and utilized microorganism self endogenous respiration to carry out oxygenolysis, make sewage treatment facility outwards the biosolids amount of discharging reduce, fundamentally, reduce mud generation in fact.End than mud is processed disposal technology, on the basis that guarantees wastewater treatment efficiency, strengthens the research of source Sludge Reduction Technologies is had very important significance, and be the focus direction of current Sludge Disposal Techniques research.
Present Sludge Reduction Technologies is mainly based on three class action principles, one class is based on the Sludge Reduction Technologies of cytolysis (or decomposition)-recessive growth, first wet mud is carried out machinery, chemistry, heat-chemistry, bio-oxidation, the broken mud flco that decomposes, promote the microorganism cells dissolving, make organic carbon in the organism as the substrate of microorganism and repeat metabolism, the recessive growth that namely utilizes cell lysates to carry out; The Equations of The Second Kind principle is the quantity of bacterium predator in the increase system, is the sludge reduction technology that the food chain principle in the imitated natural ecosystem is carried out; The 3rd class is to adopt chemistry or biological method to promote the uncoupling metabolism, causes energy leakage, thereby makes the biological growth decrease in efficiency.
At present, the research of sludge from wastewater treatment plant disposal minimizing mainly is the methods such as physico-chemical processes, biological process.Various sludge reduction methods relatively see the following form 2.
The various Sludge Reduction Technologies decrement of table 2 effect relatively
Above sludge from wastewater treatment plant is disposed Decrement Technique certain range of application and advantage, but each technology has its drawback, for example utilizes traditional method mud decrement DeGrain; The uncoupling agents method can affect effluent quality, greatest weakness in actual applications is the environmental safety problem, uncoupling agents normally has the compound of larger toxicity than difficult for biological degradation or to biology, so that biological incomplete to the degraded of uncoupling agents, this will bring new pollution; Utilize molten born of the same parents' technology decrement effect general, and running cost is higher; Limnodrilus hoffmeisteri original position sludge digestion, the environmental factors of Limnodrilus hoffmeisteri mud decrement influential effect maximum is pH, secondly is temperature, and affecting less is DO, and the Limnodrilus hoffmeisteri Decrement Technique also need be equipped with specific filler and bacterial classification in addition, and once investment or improvement cost are higher.
The utility model content
The utility model provides a kind of system that utilizes the bypass bio-reactor to carry out mud decrement, and the mud that settling bowl is got rid of reacts in the bypass bio-reactor, reaches the purpose of decrement, from the output of source control mud.
A kind of system that utilizes the bypass bio-reactor to carry out mud decrement, comprise the anaerobic tank, anoxic pond, oxygen supply pond and the settling bowl that connect successively, be provided with mud return line between the shore pipe of described settling bowl and the anaerobic tank, also comprise a bypass bio-reactor, be divided into adjustment pond and the agitating reaction pond that is interconnected in the described bypass bio-reactor; Described equalizing tank is communicated with the shore pipe of described settling bowl by the mud decrement pipe, and described equalizing tank is by pipeline connection the first oxygen supply device; Described agitating reaction pond is communicated with in described anaerobic tank, anoxic pond, the oxygen supply pond at least one by the mixed-liquor return pipe, is provided with whipping appts in the described agitating reaction pond.
Mud major part in the settling bowl is back to recycle in the anaerobic tank, draw a part of mud to the bypass bio-reactor, advanced line space gas carries out stirring reaction after mixing again in the bypass bio-reactor, bacterial classification in the bypass bio-reactor is aerobic bacteria, a kind of bacterial classification of holding concurrently the coexistence of oxygen bacterium and mud decrement bacterium, undegradable mud in the mud is fully degraded, reacted mixed-liquor return is to biochemistry pool, after entering the oxygen supply pond, easily decomposed by aerobic microbiological in the mud that process bypass bioreactor for treatment is crossed, constantly circulation, biosolids in the degraded mud, the output of minimizing excess sludge.
Be divided into equalizing tank and agitating reaction pond in the described bypass bio-reactor, mainly carry out air mixed in the equalizing tank, the mixed solution stirring reaction in agitating reaction pond after homogeneous is all measured, therefore, preferably, the volumetric ratio of described equalizing tank and agitating reaction pond is 1:3 ~ 5.
Preferably, described settling bowl is second pond or sequencing batch reactor; Described second pond is rectangular sedimentation tank or inclined tube-type settling tank.When selecting rectangular sedimentation tank, the mud in the settling tank is extracted out by vacuum pump, then sends into respectively in biochemistry pool and the bypass bio-reactor; When adopting inclined tube (plate) formula settling tank, directly in the settling tank bottom shore pipe is set mud is delivered to respectively in biochemistry pool and the bypass bio-reactor.
Preferably, described the first oxygen supply device is gas blower.
The beneficial effects of the utility model:
The utility model is to belong to the Sludge Pre-position Minimization technology, by research of the present utility model, can effectively reduce the sludge creation amount of system.Native system is the bio-reactor that utilizes a bypass, and the mud part that settling bowl is discharged enters the bypass bio-reactor and reacts, and to reach the decrement purpose, a part is back to biochemistry pool water inlet place in addition, so circulation.And in the bypass bio-reactor, being divided into two lattice, lattice are for adjusting the pond, be responsible for receiving the part mud that settling bowl is come, this mud is carried out pneumatic blending, enter follow-up bypass bio-reactor after homogeneous is all measured, utilize bacterial classification that undegradable mud in the mud is fully degraded in the reactor.Reacted mixed solution still is back to biochemistry pool water inlet place, so circulates, and greatly reduces the generation of excess sludge.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of system that utilizes the bypass bio-reactor to carry out mud decrement comprises the anaerobic tank 2, anoxic pond 3, oxygen supply pond 4 and the settling bowl 9 that set gradually, at the tail end of settling bowl 9 the bypass bio-reactor is set.
Anaerobic tank 2, anoxic pond 3 and oxygen supply pond 4 are the routine biochemistry pond in the activated sludge system, anaerobic tank 2 is provided with water inlet pipe 1, the second oxygen supply device 5 is set near anoxic pond 3 and the oxygen supply pond 4, be provided with blast main 30 in the anoxic pond 3, blast main 30 connects the second oxygen supply device 5, and blast main 30 is provided with pressure lock 29, and 4 bottoms, oxygen supply pond are provided with oxygen supply pipe network 7, oxygen supply pipe network 7 connects the second oxygen supply device 5 by a house steward, is provided with the second oxygen supply valve 6 this house steward.
Settling bowl 9 adopts the ramp type settling tank, and with scraper 11 and pipe core 10, top is with clear water water shoot 12 in the settling bowl 9, and the bottom is with shore pipe 13, and oxygen supply pond 4 is connected to the pipe core 10 of settling bowl 9 by oxygen supply pond rising pipe 6.
Mud pressurizing device 14 is set on the shore pipe 13, and being divided into three the tunnel, the one tunnel through pipeline behind the mud pressurizing device 14 is mud return line 18, is communicated to anaerobic tank 2, at mud return line 18 the first mud discharge control valve 17 is set; One the tunnel is mud decrement pipe 16, and the second mud discharge control valve 15 is set on the mud decrement pipe 16; One the tunnel is excess sludge discharge pipe 20, at excess sludge discharge pipe 19 the 3rd mud discharge control valve 19 is set;
The tail end of mud decrement pipe 16 arranges a bypass bio-reactor, is divided into equalizing tank 21 and agitating reaction pond 25 in this bypass bio-reactor, and equalizing tank 21 and agitating reaction pond 25 are interconnected, and equalizing tank 21 is 1:3 ~ 5 with the volumetric ratio of agitating reaction pond 25.
The tail end of mud decrement pipe 15 is communicated with equalizing tank 21, and the first oxygen supply device 22 is set near equalizing tank 21, in equalizing tank 21 bottoms Oxygen tube 24 is set, and Oxygen tube 24 is connected with the first oxygen supply device 22, at this Oxygen tube 24 the first oxygen supply valve 23 is set.
The agitating reaction pond 25 interior whipping apptss 26 that arrange, this whipping appts 26 adopts overhead stirrer, between agitating reaction pond 25 and the anaerobic tank 2 mixed-liquor return pipe 28 is set, by mixed-liquor return pipe 28 anaerobic tank 2 and agitating reaction pond 25 are communicated with, at this mixed-liquor return pipe 26 mixed-liquor return control valve 27 are set.
The first oxygen supply device 22 and the second oxygen supply device 5 all can adopt gas blower.
The mode of operation of present embodiment is as follows:
When native system uses, waste water passes through first certain pre-treatment, comprise adjusting, just behind the treatment facility such as heavy, waste water enters anaerobic tank 2, anoxic pond 3 and the oxygen supply pond 4 of native system successively, wherein oxygen supply pond 4 provides dissolved oxygen by the second oxygen supply device 5 and the second oxygen supply valve 6, oxygen supply pipe network 7, and Dissolved Oxygen concentration Control is at 2 ~ 4mg/L.And anoxic pond 3 also provides pneumatic blending by the second oxygen supply device 5 and pressure lock 29, blast main 30, reaches anoxic condition.
Waste water carries out solid-liquid separation through entering settling bowl 9 behind anaerobic tank 2, anoxic pond 3 and the oxygen supply pond 4 of native system, wherein water outlet discharging or enter next step treatment facility, utilize mud to divide three tunnel shuntings to pressure device 14 and mud discharge control valve conditioning of mud flow and separate the mud of discharging: the first via is back to anaerobic tank 2 water inlets (flow be about total flux 70% ~ 95%) by the first mud discharge control valve 17 and mud return line 18; The second the tunnel flows into to adjust by the second mud discharge control valve 15 and mud decrement pipe 16 and carries out mud decrement in ponds 21 and the agitating reaction pond 25 and process (flow be about total flux 5% ~ 30%), and reacted mixed solution is back to anaerobic tank 2 water inlets through mixed-liquor return control valve 27 and mixed-liquor return pipe 28 again; Third Road drains into the sludge dispoal disposal facility by the 3rd mud discharge control valve 19 and excess sludge discharge pipe 20 and processes (sludge concentration according to oxygen supply pond 3 is controlled, in good time spoil disposal when sludge concentration surpasses 4g/L).
Adjust and pass through the first oxygen supply device 22, the first oxygen supply valve 23 and Oxygen tube 24 in the pond 21, carry out pneumatic blending, when homogeneous is all measured, also provide a part of dissolved oxygen, be about 0.5 ~ 1mg/L, the residence time is 1 ~ 4h.Mud enters agitating reaction pond 25 after adjusting pond 21, utilize whipping appts 26, fully mixes and reacts, and the residence time is 2 ~ 8h.Easily decomposed by aerobic microbiological after the mud of crossing through the bypass bioreactor for treatment enters oxygen supply pond 3, thereby reach the purpose of reduce mud productive rate.
Embodiment 1
Certain printing and dyeing enterprise sewage plant does not carry out before mud decrement transforms at original treatment process, and excess sludge is about 2t/d(water ratio 80% every day).Utilize the utility model to carry out after the bypass bio-reactor transforms, excess sludge is about 0.8t/d(water ratio 80% every day).Considerable change had not occured in effluent quality before and after the mud decrement transformation.
Embodiment 2
Certain newly-built municipal wastewater treatment plant, according to the sewage water yield and the water quality situation of Sewage Plant, former estimation excess sludge generating capacity is about 10t/d(water ratio 80%).Utilize the utility model to increase a bypass bio-reactor at sewage treatment process, after Sewage Plant was built up steady running, the excess sludge generating capacity was about 3t/d(water ratio 80%).Effluent quality also can reach design requirements substantially.
The above only is better implementation example of the present utility model, is not limited to the utility model, and is all within the utility model spirit and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. system that utilizes the bypass bio-reactor to carry out mud decrement, comprise the anaerobic tank (2), anoxic pond (3), oxygen supply pond (4) and the settling bowl (9) that connect successively, be provided with mud return line (18) between the shore pipe of described settling bowl (9) and the anaerobic tank (2), it is characterized in that, also comprise a bypass bio-reactor, be divided into the adjustment pond (21) and the agitating reaction pond (25) that are interconnected in the described bypass bio-reactor;
Described equalizing tank (21) is communicated with by the shore pipe of mud decrement pipe (16) with described settling bowl (9), and described equalizing tank (21) is by pipeline connection the first oxygen supply device (22);
Described agitating reaction pond (25) is communicated with in described anaerobic tank (2), anoxic pond (3), oxygen supply pond (4) at least one by mixed-liquor return pipe (28), is provided with whipping appts (26) in the described agitating reaction pond (25).
2. system according to claim 1 is characterized in that, described equalizing tank (21) is 1:3 ~ 5 with the volumetric ratio of agitating reaction pond (25).
3. system according to claim 2 is characterized in that, described settling bowl (9) is second pond or sequencing batch reactor.
4. system according to claim 3 is characterized in that, described second pond is rectangular sedimentation tank or inclined tube-type settling tank.
5. system according to claim 4 is characterized in that, described the first oxygen supply device (22) is gas blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462219 CN202898109U (en) | 2012-09-12 | 2012-09-12 | System for carrying out sludge reduction by using bypass bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462219 CN202898109U (en) | 2012-09-12 | 2012-09-12 | System for carrying out sludge reduction by using bypass bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202898109U true CN202898109U (en) | 2013-04-24 |
Family
ID=48118802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220462219 Expired - Fee Related CN202898109U (en) | 2012-09-12 | 2012-09-12 | System for carrying out sludge reduction by using bypass bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202898109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897913A (en) * | 2012-09-12 | 2013-01-30 | 浙江省环境保护科学设计研究院 | System and process for sludge reduction by using bypass bioreactor |
-
2012
- 2012-09-12 CN CN 201220462219 patent/CN202898109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897913A (en) * | 2012-09-12 | 2013-01-30 | 浙江省环境保护科学设计研究院 | System and process for sludge reduction by using bypass bioreactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6758972B2 (en) | Method and system for sustainable treatment of municipal and industrial waste water | |
| CN101279794B (en) | Enhanced endogenous denitrification process and device for denitrification and phosphorus removal by using film-bioreactor | |
| US8765449B2 (en) | Three stage, multiple phase anaerobic digestion system and method | |
| WO2022143256A1 (en) | Chemical sewage treatment and reuse system | |
| CN104649521B (en) | The printing-dyeing waste water treatment process of circulation in a kind of muddy water strengthening | |
| CN105417765B (en) | A kind of municipal sewage organic carbon enriching and recovering utilizes device and its application method | |
| CN105776751A (en) | Process for efficient separation of organic carbon source in sewage and energy development and utilization | |
| CN106365373A (en) | Method and apparatus for treating municipal sludge anaerobic digestion solution | |
| CN100500599C (en) | Treatment method and device of rice lees wastewater | |
| CN105366871A (en) | Processing method of landfill leachate | |
| CN103395882A (en) | Processing method and processing apparatus of high ammonia-nitrogen wastewater | |
| CN212451088U (en) | Be applied to integrated processing apparatus who breeds waste water treatment | |
| CN202063797U (en) | High-concentration printing and dyeing wastewater treatment system | |
| CN102897913B (en) | System and process for sludge reduction by using bypass bioreactor | |
| CN104030533A (en) | Cassava starch production wastewater ABIC-biological contact oxidation process-coagulation treatment combined process | |
| CN202898109U (en) | System for carrying out sludge reduction by using bypass bioreactor | |
| CN217947898U (en) | System for treating coal chemical industry wastewater by coupling anaerobic ammonia oxidation of ceramic membrane bioreactor | |
| CN207596677U (en) | For middle and advanced stage landfill leachate carbon and nitrogen removal device | |
| CN215288415U (en) | Autotrophic nitrogen removal system for pure membrane MBBR (moving bed biofilm reactor) coupled carbon capture | |
| CN114685014A (en) | Livestock and poultry breeding wastewater treatment circulating system | |
| CN105152453B (en) | A kind of processing system and processing method of the reverse osmosis concentrated salt solution of coking | |
| CN102765806B (en) | Pressurizing and aerating MBR (Membrane Bioreactor) water treatment equipment and method | |
| CN104891732A (en) | System and method for treating wastewater of epidemic animal remains | |
| CN201793462U (en) | Trimethylolpropane industrial waste water treatment system | |
| CN205170596U (en) | Handle equipment of municipal sludge anaerobic digestion liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130424 Termination date: 20170912 |