CN201372232Y - Fully-automatic small anaerobic-aerobic sewage processing system - Google Patents
Fully-automatic small anaerobic-aerobic sewage processing system Download PDFInfo
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- CN201372232Y CN201372232Y CN200820124189U CN200820124189U CN201372232Y CN 201372232 Y CN201372232 Y CN 201372232Y CN 200820124189 U CN200820124189 U CN 200820124189U CN 200820124189 U CN200820124189 U CN 200820124189U CN 201372232 Y CN201372232 Y CN 201372232Y
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- sewage treatment
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Abstract
The utility model relates to a fully-automatic small anaerobic-aerobic sewage processing system belonging to the cross field of the sewage processing technology and the membrane separating technology. The utility model reduces the energy consumed by the sewage processing with the traditional anaerobic-aerobic sewage processing technology and has lowered running cost by adopting a programmable logic controller (PLC) to control the power of a self-sucking pump and a blower and being switched to run in an anaerobic-aerobic mode according to different sewage amount and different chemical oxygen demand (COD). The utility model can remove organic pollutants, nitrogen, phosphorus and the like, can be transported flexibly and operated without human management and has the characteristic of the practical application to small-scale sewage processing.
Description
Technical field
The utility model relates to a kind of automatic small anaerobic-aerobic Sewage treatment systems, belongs to the crossing domain of sewage disposal technology and membrane separation technique.
Background technology
At present sewage disposal technology adopts biological treatment usually, utilizes the biological degradation of microorganism under anaerobism or aerobic condition, realizes the effective removal to organic pollutant in the waste water and nitrogen, phosphorus.Can be divided into the different treatment process of anaerobic and aerobic two classes according to microorganism to the utilization ratio difference of oxygen.
The anaerobic biological treatment method is to utilize the metabolic characteristic of anerobe, need not to provide under the condition of external source energy, to be reduced organism as hydrogen acceptor, produces the methane gas that has the energy to be worth simultaneously.The anaerobic biological treatment method is not only applicable to into water chemical oxygen demand (COD) (COD) concentration up to the high concentrated organic wastewater of 15000mg/L, applicable to the organic waste water of lower concentrations such as municipal wastewater yet.Anaerobic biological treatment method energy consumption is low, and the organic volumetric loading height is generally 5-10kgCOD/m
3D reaches as high as 50kgCOD/m
3D.Anaerobic biological treatment method can degrade effectively several organic micro-pollution materials particularly Organohalogen compounds, substituted aromatic compound and azo cross-linking agent can bear bigger load variations and change of water quality simultaneously.Particularly being extensive use of of biologic packing material makes the hydraulic detention time (HRT) and the biosolids residence time (SRT) be separated, thereby improves processing efficiency.
The aerobe facture is under the condition that has free oxygen (molecular oxygen) to exist, the organic pollutant that the aerobic microbiological utilization exists in waste water (based on dissolved form and colloidal) has carried out oxygen metabolism as nutrition source, thereby degradation of organic substances, and make it reach treatment process stable, innoxious effect.Along with the introducing of membrane separation technique, aerobe facture and traditional biochemical processing are combined, thereby improved the efficient of wastewater treatment greatly.Membrane bioreactor can be trapped in all biosolids and macromolecule contaminant in the reactor simultaneously, thereby can be under higher sludge concentration and than the biological degradation that realizes pollutent in the long sludge retention time.Adopt this method speed of response of disposing of sewage fast, the time is short, and it is little to handle the structures volume, and the foul smell that distributes in the treating processes is few.Thereby the processing of the organic waste water of centering, lower concentration at present, adopt the aerobe facture basically.Compare with traditional biological process of wastewater treatment, this technology has that effluent quality is good, and occupation area of equipment is little, can handle the sludge concentration height, and excess sludge production is low and be convenient to the advantage of control automatically.
Present sewage disposal technology is used in combination two kinds of treatment processs usually.Because the anaerobic duty ratio is higher, simultaneously can be converted into small-molecule substance to some macromolecular substance, thereby sewage carried out anaerobic treatment earlier, but the anaerobic clearance is not very high, water after the processing can not directly discharge, generally do not use separately, need organism to be decomposed fully by aerobic treatment again.Existing a lot of large-scale wastewater treatment plants adopt this technical finesse sewage, and still for Sewage treatment systems, the particularly water yield and the bigger Sewage treatment systems of load impact of miniaturization, this technology is still waiting to improve.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of automatic small anaerobic-aerobic Sewage treatment systems is provided.The sewage disposal technology that native system not only adopts anaerobic-aerobic to combine, and adopt programmable controller (PLC) to control the power of vacuum primingpump and gas blower, different according to the sewage water yield and chemical oxygen demand (COD) (COD) load, use automatic switchover aerobic/anaerobic processing mode, reduced the sewage disposal energy consumption effectively, simultaneously the gas that produces in the sewage treatment process is recycled, had the characteristics of sewage disposal practical application on a small scale that are suitable for.
The utility model is achieved through the following technical solutions:
A kind of automatic small anaerobic-aerobic Sewage treatment systems is characterized in that, mainly comprises anaerobic reaction chamber, U type water conservancy diversion district, aerobic reaction chamber, liquidometer, the time relay, programmable controller (PLC) and frequency transformer.
Described anaerobic reaction is indoor biologic packing material, and water distributor is arranged at the bottom, and gas discharge outlet is arranged at the top.
The indoor submerged membrane assembly that is equipped with of described aerobic reaction, the aeration tube that links to each other with gas blower is arranged at the bottom, and upper inside wall is equipped with three groups of water level gauge probes that link to each other with liquidometer.
Described membrane module takes immersion to place, and the rising pipe of upper end connects vacuum primingpump, is divided into two covers, respectively by the solenoid control that is connected with the time relay.
The same programmable controller of the described time relay (PLC) links to each other.
Described frequency transformer is installed in respectively on the motor of gas blower and vacuum primingpump, by programmable controller (PLC) control rotating speed of motor.
The utility model compared with prior art has following useful effect:
(1) the utility model is environmentally friendly technology, do not introduce novel substance and enter system, do not add any energy and be used for film pollution control, do not need to add any chemical agent yet, so just there be not the interference of novel substance to system, control the film pollution effectively, reduced the expense that film cleans, reduced running cost of the present utility model simultaneously.
(2) the anaerobic reaction chamber can be hydrolyzed to hard-degraded substance (as Sodium dodecylbenzene sulfonate (LAS), oils etc.) and high-concentration sewage, can improve the biodegradability of back segment aerobic zone water inlet, and then has improved the sewage disposal level of system.Anaerobic reaction is indoor biologic packing material, adds facultative anaerobe and methanogen simultaneously, helps promoting the growth and breeding of poky anerobe, and guarantee anerobe not can with the competitions of other bacteriums in be eliminated.The use of biologic packing material not only prolongs sludge retention time effectively, and has improved the processing power of organic sewage and the ability of system's anti-shock loading.Water distributor is arranged at bottom, anaerobic reaction chamber, and sewage flows from bottom to top, make the bigger organism of settling ratio stay the anaerobic reaction chamber, and small organic molecule enters the aerobic reaction chamber, and makes the sewage fluidised form even, does not have the dead angle, and power consumption is low.
(3) collection chamber and escape pipe are arranged at top, anaerobic reaction chamber, and the gas (based on biogas) that organic matter degradation produces can be discharged under the driving of hydraulic pressure voluntarily.This part gas can provide the extra energy, has reduced the waste of organic mass-energy, and other gas enters U type water conservancy diversion district, discharges by vent valve.
(4) mud in process U type water conservancy diversion district makes the mud of this reaction zone keep suitable concentration through the natural subsidence that stops of dividing plate, also makes system have the effect of extraordinary withstand shock load.Mud regularly can be discharged, thereby has certain phosphorus removal functional, has reduced the concentration that enters aerobic aeration district mud simultaneously, and then has reduced the generation that film pollutes.
(5) supernatant liquor of sewage flows into the aerobic aeration district, and its COD load is lower, and gas-water ratio is controlled at below 10: 1, can remove remaining small molecules organic matter in the sewage well, can not damage the structure of mud flco, make mud keep higher activity, thereby reduced the needed energy consumption of aeration.
(6) membrane module unit is rigid polyvinyl chloride (PVC) support frame, and utilizes the centrifugation of film can tackle bacterium and mud effectively, thereby effluent quality can reach the standard of direct reuse, has good economic benefits.Film pollutes to alleviate and makes film keep higher flux always simultaneously, thereby has reduced the energy consumption of vacuum primingpump, seldom or not needs to carry out film and cleans.
(7) can be according to the different adjustment running frequencies of the water yield by the variable frequency pump of PLC control with the frequency conversion aeration, intermittent loading is adopted in water inlet, and vacuum primingpump quit work when no sewage entered.Aeration adopts the pattern of aeration at interval, during the water inlet of normal interval, and vacuum primingpump and gas blower low-frequency operation, the sewage disposal of this moment is based on anaerobic treatment, and aerobic treatment is auxilliary; When large amount of sewage continues to enter, vacuum primingpump and the operation of gas blower high frequency, the sewage disposal of this moment is based on aerobic treatment, and anaerobic treatment is auxilliary.
In conjunction with the domestic and international research present situation, and the actual demand of consideration wastewater treatment in China, developed the utility model, realized removing simultaneously the purpose of organic pollutant (as hard-degraded substance) and nitrogen, phosphorus etc.The utility model can be carried flexibly, and its operation can realize unmanned management, has saved energy consumption, is specially adapted to the fermentation plant of living settlement, small-sized starch processing plant temporarily and needing to handle high-concentration organic matter sewage.
Description of drawings
Accompanying drawing is the utility model structural representation.
The explanation of each mark in the accompanying drawing:
The 1-recycle pump; 2-anaerobic reaction chamber; The 3-water distributor; 4-biologic packing material layer; 5-U type water conservancy diversion district; The 6-membrane module; The 7-aeration tube; 8-aerobic reaction chamber; The 9-vacuum primingpump; The 10-gas blower; The 11-under meter; The 12-tensimeter; The 13-time relay; 14-water level gauge probe 1; 15-water level gauge probe 2; 16-water level gauge probe 3; The 17-vent valve; 18-collection and confinement of gases pipe; The 19-collection chamber; 20-gas reflector; 21-programmable controller (PLC); The 22-liquidometer.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in the figure: a kind of automatic small anaerobic-aerobic Sewage treatment systems comprises anaerobic reaction chamber 2, U type water conservancy diversion district 5, aerobic reaction chamber 8, liquidometer 22, the time relay 13, programmable controller (PLC) 21 and frequency transformer.Anaerobic reaction chamber 2 links to each other with recycle pump 1 by the water distributor 3 of bottom, and there is biologic packing material layer 4 inside, and gas discharge outlet is arranged at the top.Aerobic reaction chamber 8 communicates with anaerobic reaction chamber 2 by U type water conservancy diversion district 5, be built-in with the membrane module 6 that links to each other with tensimeter 12, under meter 11 and vacuum primingpump 9 by rising pipe, water level gauge probe 1, water level gauge probe 2 and water level gauge that the bottom has the aeration tube 7 that is connected with gas blower 10, upper inside wall to be equipped with and links to each other with liquidometer 22 pop one's head in 3.Programmable controller (PLC) 21 is connected with liquidometer 22, the time relay 13, recycle pump 1, gas blower 10, vacuum primingpump 9.Frequency transformer is installed in respectively on the motor of gas blower 10 and vacuum primingpump 9, by programmable controller (PLC) 21 control rotating speed of motor.
The liquid level high-low signal of liquidometer 22 outputs imports programmable controller (PLC) 21 into, by the output rating of programmable controller (PLC) 21 control vacuum primingpumps 9, to adjust the flooding velocity of pending water.During operation, membrane module 6 adopts the negative pressure water-out manners, two cover membrane modules are in suction respectively and rest two different working stages, and come by the time relay 13 and programmable controller (PLC) 21 suction and the unemployed time of controlling diaphragm water outlet, wherein programmable controller (PLC) 21 is adjusted the aeration rate of aeration pump by the control of conversion device, and then changes aeration intensity.
Working process of the present utility model is as follows:
Sewage enters anaerobic reaction chamber 2 after pressurizeing via recycle pump 1, behind water distributor 3 uniform distribution, upwards flows through the anaerobic reaction district that is made up of spherical biologic packing material floor 4.The sewage generation anaerobic reaction that contacts with facultative anaerobe and methanogen produces biogas, thereby causes the disturbance of biologic packing material layer 4.A gas part that produces in packing layer is attached on the particulate state mud, free gas and rise to the top of anaerobic reaction chamber 2 attached to the gas on the particulate state mud.The part particle bump gas reflector 20 that rises causes that the bubble that adheres to breaks, and the mud granule precipitation that breaks away from gas is got back to packing layer, thereby make because of current the quantity that part particulate state mud is brought into U type water conservancy diversion district 5 is reduced.The gas that reaction produces then is collected in the collection chamber 19 at 2 tops, anaerobic reaction chamber, and other gas enters into U type water conservancy diversion district 5, by vent valve 17 dischargings.
Through after the anaerobic treatment, the sewage that contains small organic molecule and biological particles enters into U type water conservancy diversion district 5.Because the water flows gently, the mud that settling ratio is bigger can be separated to the bottom in U type water conservancy diversion district 5 from mixed solution, discharge by the mud discharging mouth, supernatant liquor through mud-water separation then enters aerobic reaction chamber 8, but handle the small organic molecule of removing bio-oxidation by aeration, after membrane module 6 is realized solid-liquid separation, the water after the processing through vacuum primingpump 9 discharge promptly can be used as in water carry out reuse.Vacuum primingpump 9 carries out periodic running by the magnetic valve of the time relay 13 controls, and its cycle can be out 9 minutes and stopped 3 minutes.
Embodiment 2
The mode of connection of each parts is identical with mode of connection among the embodiment 1.
When sewage quantity more after a little while, system is as follows based on the treating processes of anaerobic treatment:
Sewage quantity recycle pump 1 more after a little while moves with intermittent mode, the time that sewage stops in anaerobic reaction chamber 2 is longer, process is fully reacted with facultative anaerobe and methanogen in anaerobic reaction chamber 2, most of organism changes into inflammable gas and enters collection chamber 19 and be recovered utilization, the small portion organism becomes degradable small organic molecule and flows into aerobic reaction chamber 8 with sewage, degrades after by aeration in aerobic reaction chamber 8.When reaching water level gauge, the wastewater level of aerobic reaction chamber 8 pops one's head in 15 the time, vacuum primingpump 9 is with lower frequency operation under the control of programmable controller (PLC) 21, the operating pressure of film silk is between 0.01MPa～0.02MPa at this moment, gas blower 10 also is in the low-frequency operation state simultaneously, help forming the particulate state active sludge, and reduce the pollution on film silk surface.Pop one's head in 14 the time when the wastewater level of aerobic reaction chamber 8 is lower than water level gauge, vacuum primingpump 9 quits work, but gas blower 10 still carries out aeration with low frequency.
The mode of connection of each parts is identical with mode of connection among the embodiment 1.
When sewage quantity more for a long time, system is as follows based on the treating processes of aerobic treatment:
Sewage quantity recycle pump 1 more for a long time moves with at interval short or continuous mode, it is shorter that sewage is admitted to the 2 back residence time of anaerobic reaction chamber, most of organism can not be degraded fully, enter aerobic reaction chamber 8 but be broken down into small organic molecule with sewage, in aerobic reaction chamber 8, degrade after by aeration.When reaching water level gauge, the wastewater level of aerobic reaction chamber 8 pops one's head in 16 the time, vacuum primingpump 9 high frequencies operation under the control of programmable controller (PLC) 21, the operating pressure of film silk is between 0.03MPa～0.05MPa at this moment, also high frequency operation under the control of programmable controller (PLC) 21 of gas blower 10 simultaneously, thereby the increase aeration rate makes gas effectively clean the film silk and reduces film and pollute.Pop one's head in 16 the time when wastewater level reaches water level gauge, recycle pump 1 stops into water, overflows to prevent sewage.Pop one's head in 15 the time when the water level of aerobic reaction chamber 8 reaches water level gauge, programmable controller (PLC) 21 control vacuum primingpumps 9 make it be converted to low-frequency operation, and gas blower 10 also is in the low-frequency operation state to reduce operation energy consumption simultaneously.
Adopt the utility model to handle sanitary sewage, wastewater from fermentation industry and food industrial wastewater, the water quality of the water after the processing is good, can reach the middle water reuse standard of national regulation; Biological degradation efficient height, energy consumption is low; The membrane module convenient operating maintenance, long service life; Producing callable biogas uses as secondary energy.The utility model integrability is produced, and volume is urinated in moving, and is particularly suitable for using under the situation that sewage is loaded and the flow frequency change is bigger.
Claims (6)
1, a kind of automatic small anaerobic-aerobic Sewage treatment systems is characterized in that, this system mainly comprises two reaction chambers, an anaerobic reaction chamber and an aerobic reaction chamber, and two reaction chambers are connected by U type water conservancy diversion district.
2, automatic small anaerobic-aerobic Sewage treatment systems according to claim 1 is characterized in that, described anaerobic reaction is indoor biologic packing material, and water distributor is arranged at the bottom, and gas discharge outlet is arranged at the top.
3, automatic small anaerobic-aerobic Sewage treatment systems according to claim 1, it is characterized in that, the indoor submerged membrane assembly that is equipped with of described aerobic reaction, the aeration tube that links to each other with the frequency conversion gas blower is arranged at the bottom, and upper inside wall is equipped with three groups of water level gauge probes that link to each other with liquidometer.
4, automatic small anaerobic-aerobic Sewage treatment systems according to claim 3, it is characterized in that described membrane module takes immersion to place, the rising pipe of upper end connects the frequency conversion vacuum primingpump, be divided into two covers, respectively by the solenoid control that is connected with the time relay.
5, automatic small anaerobic-aerobic Sewage treatment systems according to claim 4 is characterized in that, the described time relay links to each other with programmable controller.
6, according to claim 3 or 4 described automatic small anaerobic-aerobic Sewage treatment systemss, it is characterized in that the frequency transformer of described frequency conversion gas blower and frequency conversion vacuum primingpump links to each other with programmable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820124189U CN201372232Y (en) | 2008-11-28 | 2008-11-28 | Fully-automatic small anaerobic-aerobic sewage processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820124189U CN201372232Y (en) | 2008-11-28 | 2008-11-28 | Fully-automatic small anaerobic-aerobic sewage processing system |
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| CN201372232Y true CN201372232Y (en) | 2009-12-30 |
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| CN200820124189U Expired - Fee Related CN201372232Y (en) | 2008-11-28 | 2008-11-28 | Fully-automatic small anaerobic-aerobic sewage processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007671A (en) * | 2013-04-23 | 2014-08-27 | 江南大学 | Method for automatically switching operation state of biological sewage inactivation tank |
| CN109304358A (en) * | 2018-11-30 | 2019-02-05 | 广东佳德土壤修复技术有限公司 | A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device |
-
2008
- 2008-11-28 CN CN200820124189U patent/CN201372232Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007671A (en) * | 2013-04-23 | 2014-08-27 | 江南大学 | Method for automatically switching operation state of biological sewage inactivation tank |
| CN109304358A (en) * | 2018-11-30 | 2019-02-05 | 广东佳德土壤修复技术有限公司 | A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device |
| CN109304358B (en) * | 2018-11-30 | 2023-10-31 | 广东佳德土壤修复技术有限公司 | Device for jointly repairing organic contaminated soil through in-situ heat treatment, vapor extraction and permeable reaction wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Northern Leader Chemical Science & Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20101128 |