CN207862001U - Low energy consumption low-level oxidation sewage-treatment plant - Google Patents
Low energy consumption low-level oxidation sewage-treatment plant Download PDFInfo
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- CN207862001U CN207862001U CN201721606454.9U CN201721606454U CN207862001U CN 207862001 U CN207862001 U CN 207862001U CN 201721606454 U CN201721606454 U CN 201721606454U CN 207862001 U CN207862001 U CN 207862001U
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Abstract
The utility model is related to a kind of low energy consumption low-level oxidation sewage-treatment plants, including hydrolysis acidification area, anaerobic zone, air plug-flow area, one area of aeration, 2nd area of aeration and settling section；It is equipped with wastewater influent manifold in the hydrolysis acidification area, elastic filler is equipped in the hydrolysis acidification area, hydrolysis acidification microorganism is attached in the elastic filler；Sewage in hydrolysis acidification area enters anaerobic zone, sewage in the anaerobic zone enters air plug-flow area, air plug flow device is set in air plug-flow area, sewage is under the promotion of air plug flow device, 2nd area of one area of aeration and aeration are sequentially entered, sewage is under the impetus of air plug-flow area air plug flow device.By low air water, when low-level oxidation aeration process controls dissolved oxygen concentration to the utility model, greatly reduces aeration intensity；Under the action of air plug-flow, big flow internal circulation system can be formed, the anti-rinse capability of system greatly enhances, and ensure that the denitrification ability of system, meanwhile, save the energy consumption of mixed-liquor return pump.
Description
Technical field
The utility model is related to technical field of sewage, at a kind of low energy consumption low-level oxidation sewage
Manage device.
Background technology
Traditional sewage biological treatment system uses activated sludge process, and technique includes anaerobic part, anoxic part, aerobic
The units such as part and secondary precipitation are constituted.COD, BOD, NH in sewage3The polluters such as-N are removed by biochemical unit, usually
Removal efficiency in order to improve COD needs to improve dissolved oxygen concentration, and the rate of transform for improving oxygen then needs to increase steam-water ratio, while ammonia
State nitrogen is converted into nitrate nitrogen.But in order to control the discharge of total nitrogen in sewage, then need the effluent recycling of aerobic part to anoxic
Biochemical part carries out denitrification, and traditional return current ratio of the mixed liquid is generally 200%~400%, and generally use pump flows back.
The high steam-water ratio of traditional wastewater biochemical treatment needs the wind turbine of relatively high power, and energy consumption is higher, and 2~4 times of reflux ratio
It is poor for the anti-shock loading of unstable water quality, make that system is more complicated and energy consumption is higher using reflux pump, and for low
C/N than denitrogenation of waste water ability it is poor, need to add a large amount of carbon sources and just can guarantee standard water discharge.Currently, how to reduce at sewage
Energy consumption is managed, while it is that the hot spot of sewage disposal research is asked to have the technique of preferable adaptability and energy synchronous denitrification dephosphorizing and equipment
Topic.
Invention content
The technical problem to be solved by the present invention is to, a kind of reasonable design is provided, flow is simple, operating cost is low and
The low energy consumption low-level oxidation sewage-treatment plant of energy synchronous denitrification dephosphorizing.
Technical solution adopted by the utility model to solve its technical problems is：It constructs at a kind of low energy consumption low-level oxidation sewage
Manage device, including hydrolysis acidification area, anaerobic zone, air plug-flow area, one area of aeration, 2nd area of aeration and settling section；The hydrolysis acid
Change and be equipped with wastewater influent manifold in area, elastic filler is equipped in the hydrolysis acidification area, hydrolysis is attached in the elastic filler
Acidifying microbes；Sewage in hydrolysis acidification area enters anaerobic zone, and the sewage in the anaerobic zone enters air plug-flow area, air
Air plug flow device is set in plug-flow area, and sewage sequentially enters one area of aeration and aeration two under the promotion of air plug flow device
Area, sewage form large scale under the impetus of air plug-flow area air plug flow device, being aerated in 2nd area of an area and aeration
Interior cycle, inner circulating reflux ratio are 15~20:1；Sewage enters settling section after being aerated the processing of 2nd area.
In said program, the settling section is provided with the scraping and sucking machine for collecting settling section bottom activated sludge, activity
Sludge is discharged into sludge sump, and by the first gate, hydrolysis acidification pool, excess sludge are entered after being mixed with the water inlet of wastewater influent manifold
Then pass through the second gate, is discharged through sludge pipe.
In said program, the hydrolysis acidification microorganism includes hydrolytic bacteria, acid-producing bacteria.
In said program, diving mixer is arranged in hydrolysis acidification area bottom.
In said program, the anaerobic zone is internally provided with submersible water impeller.
In said program, less than 0.1mg/L, sewage carries out the Dissolved Oxygen concentration Control of the anaerobic zone in anaerobic zone
The release of phosphorus.
In said program, the air plug flow device is equipped with multiple air intake branches, and independent valve is set on air intake branch.
In said program, one area of the aeration and two area bottoms of aeration are equipped with aeration flexible pipe.
In said program, two layers of inclined plate packing and one layer of inclined tube filler is arranged in the settling section.
In said program, the scraping and sucking machine is placed in scraping and sucking machine bottom equipped with backwash roots blower, Backwash pipeline.
The low energy consumption low-level oxidation sewage-treatment plant for implementing the utility model, has the advantages that：
1, by low air water, when low-level oxidation aeration process controls dissolved oxygen concentration to the utility model, greatly reduces aeration
Intensity；Under the action of air plug-flow, big flow internal circulation system can be formed, the anti-rinse capability of system greatly enhances, and ensures
The denitrification ability of system, meanwhile, save the energy consumption of mixed-liquor return pump.
2, remaining activity sludge reflux can be hydrolyzed in hydrolysis acidification water, be made to hydrolysis acidification pool in settling section
Residual sludge reduction can also increase the settling property of excess sludge.
3,2 independent subregions are arranged in aeration zone, and set independent valve control air inflow, can to each subregion dissolved oxygen into
Row independent control is conducive to carry out technical arrangement plan when influent quality fluctuates.
4, sewage biological treatment system control aeration intensity makes aeration zone dissolved oxygen be maintained at 0.3~0.8mg/L ranges
It is interior, realize short-cut nitrification and denitrification.Meanwhile integrating hydrolysis acidification, biological carbon and phosphorous removal and mixed liquor clarification process,
Save floor space and processing step.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the process flow diagram of the utility model low energy consumption low-level oxidation sewage-treatment plant；
Fig. 2 is the structural schematic diagram of the utility model low energy consumption low-level oxidation sewage-treatment plant.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As depicted in figs. 1 and 2, the utility model low energy consumption low-level oxidation sewage-treatment plant includes hydrolysis acidification area 001, detests
Oxygen area 002, air plug-flow area 003, one area 004 of aeration, two areas 005 of aeration and settling section 006.
Treatment sewage enters hydrolysis acidification area 001 by wastewater influent manifold 101, and 101 lower parts wastewater influent manifold have
Partition wall water conservancy diversion.Diving mixer 201 is arranged in 001 bottom of hydrolysis acidification area, is conducive to being sufficiently mixed for treatment sewage.Hydrolysis acid
Change in area 001 and is provided with elastic filler, the microorganisms such as hydrolytic bacteria, the acid-producing bacteria for the treatment of sewage on being attached to elastic filler
Under collective effect, the non-dissolved organic matter in sewage is retained and is gradually changed into dissolved organic matter, some are difficult to biology
Degradation macromolecular substances are converted into the small-molecule substance such as organic acid etc. for being easy to degradation, to make the biodegradability and drop of waste water
Solution speed increases substantially, in favor of follow-up Aerobic biological process.Hydrolysis acidification area 001 is not provided with aeration tube, water and reflux
Muddy water ensures 001 dissolved oxygen of hydrolysis acidification area within the scope of 0.05~0.1mg/L.
Sewage in hydrolysis acidification area 001 enters anaerobic zone 002, promotion of 002 sewage of anaerobic zone in submersible water impeller 202
Under, into air plug-flow area 003.Less than 0.1mg/L, sewage carries out 002 Dissolved Oxygen concentration Control of anaerobic zone in this area
The release of phosphorus.
Setting air plug flow device 203 in air plug-flow area 003, sewage is under the promotion of air plug flow device 203, successively
Into two areas 005 of one area 004 of aeration and aeration, sewage under the impetus of 003 air plug flow device 203 of air plug-flow area,
It is formed in large scale and is recycled in two area 005 of one area 004 of aeration and aeration, inner circulating reflux ratio is 15~20:1.In large scale
Cycle is conducive to the processing to high-concentration waste water to being diluted.
Air plug flow device 203 realizes that air plug flow device 203 is arranged in independent partition wall, bottom using compressed air
With anaerobic zone unicom.Air plug flow device 203 divides for multiple air intake branches, and independent valve is set on air intake branch for controlling air inlet
Amount.
An area 004 and 2nd area of aeration, 005 bottom aeration flexible pipe are aerated using En Gebai companies of Germany oxygenation hose, hose week
There is stomata on diameter surface, and in generating in water, microbubble, bobble rise velocity is slow, uniform air distribution, and coefficient of oxygen utilization is high, more similar
Type oxygen increasing equipment oxygenation efficiency improves 2~3 times.The wall thickness of micro-pore oxygenation hose only has 2mm, and air flue is short and straight, and atmospheric pressure lost is small.
Stomata is in long and narrow fine crack, and stomatal width can be changed in a certain range.The inner surface of micro-pore oxygenation hose is smooth, is not easy attachment life
Object film.
Air plug flow device 203, one area 004 of aeration and aeration 2nd areas, 005 air source are provided by air blower, and air blower uses
Frequency control can control aeration intensity, while air plug-flow area 003, one area 004 of aeration and the air branch pipe for being aerated two areas 005
It is equipped with valve, for controlling each area's aeration intensity, keeps one area's dissolved oxygen of aeration in 0.2~0.3mg/L, the dissolving of 2nd area of aeration
Oxygen is in 0.3~0.5mg/L.It is degradation of organic substances, short distance simultaneous nitrification and denitrification nitre being aerated major function in 2nd area of an area and aeration
Change and excessively takes the photograph phosphorus.
Sewage enters settling section 006 after being aerated the processing of two areas 005, is arranged barricade at 006 water inlet of settling section, sewage from
006 bottom of settling section enters, and by the inclined plate and inclined tube of settling section 006, processing water outlet enters settling section effluent trough 104, through going out
Outside 102 discharge system of water pipe.
Scraping and sucking machine 204 is arranged in settling section 006, collects settling section bottom activated sludge, is carried through 204 sludge pump of scraping and sucking machine
After rising, activated sludge is discharged into sludge sump 105, and by the first gate 206, hydrolysis acidification pool is entered after being mixed with water inlet, remaining dirty
Mud then pass through the second gate 205, through 104 discharge system of sludge pipe outside.
Two layers of inclined plate packing and one layer of inclined tube filler is arranged in settling section 006, and Chi Ding is arranged running vehicle type scraping and sucking machine 204, scrapes
204 mating backwash roots blower of suction dredge, Backwash pipeline are placed in 204 bottom of scraping and sucking machine.006 bottom of settling section activity is dirty
Mud enters hydrolysis acidification pool 001 after the promotion of scraping and sucking machine 204, is mixed with water inlet.Scraping and sucking machine 204 is also provided with automatically
The effect mainly cleaning of backwashing function, backwash is attached to the activated sludge on inclined tube, for traditional inclined tube, this
Flushing process can carry out online.
The utility model additionally provides following two specific embodiments：
Embodiment 1
Certain chemical industrial park wastewater influent water 5m3/ h, influent quality are：
1 chemical industrial park wastewater influent water quality of table
It is handled using sewage disposal system shown in Fig. 1, anaerobic zone dissolved oxygen is less than 0.1mg/L, aeration one in system
Area's dissolved oxygen is 0.3~0.8mg/L, and sludge concentration is 6~8g/L, and two area's dissolved oxygens of aeration are 0.3~0.5mg/L, and sludge is dense
Degree is 6g/L, and anaerobic zone, one area of aeration and two area's inner circulating reflux ratios of aeration are 18:1, by this sewage biological treatment system place
After reason, effluent quality is：
2 chemical industrial park sewage effluent quality of table
Explanation：Con trolling index when the outer numerical value of bracket is 12 DEG C of water temperature ＞, control when numerical value is water temperature≤12 DEG C in bracket
Index processed.
As can be seen from Table 2, after the processing of this sewage biological treatment system, effluent quality reaches GB18918-2002 mono-
Grade B standard.
This system blower power is 4kw, and frequency control actual power consumption is 3.2kw, is such as handled using traditional wastewater
Mixed-liquor return pump need to be arranged in system, and mixing reflux ratio uses 300%, and mixed-liquor return pump power is 1.1kw, and to sum up, this is
Savable total energy consumption of uniting is 1.9kwh.
Embodiment 2
Certain municipal wastewater amount of inlet water 5m3/ h, influent quality are：
3 municipal wastewater influent quality of table
| Project | CODCr | BOD5 | NH3-N | NT | TP |
| Water inlet index | 320 | 160 | 40 | 56 | 5 |
It is handled using sewage disposal system shown in Fig. 1, anaerobic zone dissolved oxygen is less than 0.1mg/L, aeration one in system
Area's dissolved oxygen is 0.2~0.3mg/L, and sludge concentration is 5~7g/L, and two area's dissolved oxygens of aeration are 0.3~0.5mg/L, and sludge is dense
Degree is 6g/L, and anaerobic zone, one area of aeration and two area's inner circulating reflux ratios of aeration are 18:1, by this sewage biological treatment system place
After reason, effluent quality is：
4 municipal wastewater effluent quality of table
Explanation：Con trolling index when the outer numerical value of bracket is 12 DEG C of water temperature ＞, control when numerical value is water temperature≤12 DEG C in bracket
Index processed.
As can be seen from Table 4, after the processing of this sewage biological treatment system, effluent quality reaches GB in addition to total phosphorus
18918-2002 level-one A standards.
This system blower power is 4kw, and frequency control actual power consumption is 3.1kw, is such as handled using traditional wastewater
Mixed-liquor return pump need to be arranged in system, and mixing reflux ratio uses 300%, and mixed-liquor return pump power is 1.1kw, and to sum up, this is
Savable total energy consumption of uniting is 2.0kwh.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific implementation mode stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (10)
1. a kind of low energy consumption low-level oxidation sewage-treatment plant, which is characterized in that including hydrolysis acidification area, anaerobic zone, air plug-flow
Area, one area of aeration, 2nd area of aeration and settling section；
It is equipped with wastewater influent manifold in the hydrolysis acidification area, is equipped with elastic filler in the hydrolysis acidification area, the elasticity is filled out
Hydrolysis acidification microorganism is attached on material；
Sewage in hydrolysis acidification area enters anaerobic zone, and the sewage in the anaerobic zone enters air plug-flow area, air plug-flow area
Interior setting air plug flow device, sewage sequentially enter 2nd area of one area of aeration and aeration, sewage under the promotion of air plug flow device
Under the impetus of air plug-flow area air plug flow device, recycled being aerated to be formed in large scale in 2nd area of an area and aeration,
Inner circulating reflux ratio is 15~20:1；
Sewage enters settling section after being aerated the processing of 2nd area.
2. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that the settling section is provided with
Scraping and sucking machine for collecting settling section bottom activated sludge, activated sludge are discharged into sludge sump, by the first gate, with sewage into
Enter hydrolysis acidification pool after the water inlet mixing of supply mains, excess sludge then passes through the second gate, is discharged through sludge pipe.
3. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that the micro- life of hydrolysis acidification
Object includes hydrolytic bacteria, acid-producing bacteria.
4. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that hydrolysis acidification area bottom
Diving mixer is arranged in portion.
5. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that set inside the anaerobic zone
There is submersible water impeller.
6. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that the dissolving of the anaerobic zone
Oxygen concentration is controlled less than 0.1mg/L, and sewage carries out the release of phosphorus in anaerobic zone.
7. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that the air plug flow device
Multiple air intake branches are equipped with, independent valve is set on air intake branch.
8. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that one area of the aeration and exposure
Two area bottom of gas is equipped with aeration flexible pipe.
9. low energy consumption low-level oxidation sewage-treatment plant according to claim 1, which is characterized in that the settling section setting two
Layer inclined plate packing and one layer of inclined tube filler.
10. low energy consumption low-level oxidation sewage-treatment plant according to claim 2, which is characterized in that the scraping and sucking machine is matched
There are backwash roots blower, Backwash pipeline to be placed in scraping and sucking machine bottom.
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| CN201721606454.9U CN207862001U (en) | 2017-11-27 | 2017-11-27 | Low energy consumption low-level oxidation sewage-treatment plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720963A (en) * | 2017-11-27 | 2018-02-23 | 湖北加德科技股份有限公司 | Low energy consumption low-level oxidation sewage treatment process and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720963A (en) * | 2017-11-27 | 2018-02-23 | 湖北加德科技股份有限公司 | Low energy consumption low-level oxidation sewage treatment process and device |
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