CN101585589A - Backflow type active sludge biochemical treatment device - Google Patents
Backflow type active sludge biochemical treatment device Download PDFInfo
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- CN101585589A CN101585589A CNA2008101121370A CN200810112137A CN101585589A CN 101585589 A CN101585589 A CN 101585589A CN A2008101121370 A CNA2008101121370 A CN A2008101121370A CN 200810112137 A CN200810112137 A CN 200810112137A CN 101585589 A CN101585589 A CN 101585589A
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- jet pipe
- biochemical treatment
- active sludge
- treatment device
- type active
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to a backflow type active sludge biochemical treatment device, which comprises a cylindrical shell and a high-efficiency aerator, wherein a backflow cylinder with open upper and lower ends is arranged in the shell, an interspace for forming a sedimentation overflow area is reserved between the upper end of the backflow cylinder and the top of the shell, an interspace for forming a sludge area is reserved between the lower end of the backflow cylinder and the bottom of the shell, an interspace for forming a rotational flow passage is reserved between the outer wall of the backflow cylinder and the inner wall of the shell, a jet pipe of the high-efficiency aerator is connected into the shell along the tangential direction of the shell and is communicated with the space inside the shell, and the joint part corresponds to the lower part of the backflow cylinder. The backflow type active sludge biochemical treatment device forms backflows in the shell, effectively improves the comprehensive mass transferring capacity, has high active sludge concentration and good purification effect, allows deeper water depth, and is mainly applied to the aerobic biochemical treatment of organic sewage.
Description
Technical field
The present invention relates to a kind of waste water control device, is a kind of backflow type active sludge biochemical treatment device specifically, belongs to environmental protection technical field.
Background technology
The active sludge aerobic biochemical reaction is the important technology of organic sewage processing for a long time, its cost, treatment effect is good, equipment is simple, therefore be to carry out the preferred manner that organic sewage is handled, wherein aerator is an important factor that influences the active sludge aerobic biochemical treatment effect, mostly present aerator is to adopt the aeration head of various structures, aeration head is arranged on the sewage disposal device bottom, connect the high-pressure air feed pipe and outwards penetrate airflow by aeration head, so that realize the mixing mass transfer of air with sewage, reach the effect of aeration, because the pressure limitation of air source, this aerator often can only be 5 meters of the depth of waters with interior use, and dark excessively water can not carry out aeration, also limit the degree of depth in aerobic biochemical pond thus, increased the floor space of aerobic treatment system, in addition, this in sewage the gas-liquid mass transfer effect of mode of emission airstream limited, need to consume a large amount of ability and high-pressure air.
Summary of the invention
For overcoming the above-mentioned defective of prior art, the invention provides a kind of backflow type active sludge biochemical treatment device, the energy consumption of this biochemistry pool is low, and aeration is effective, the activated sludge concentration height, water outlet is effective.
The present invention realizes that the technical scheme of above-mentioned purpose is: a kind of backflow type active sludge biochemical treatment device, comprise a cylinder shell and a high efficient aeration device, be provided with a backflow tube of both ends open up and down in the described housing, the upper end of the described tube that refluxes is with leaving the interval that constitutes the sedimentation flooded zonevvv between the described case top, the lower end is with leaving the interval that constitutes the mud district between the described housing bottom, outer wall is with leaving the interval that constitutes the eddy flow passage between the described inner walls, described high efficient aeration device comprises a high-pressure hydraulic pump, a jet pipe and some blast mains, described jet pipe is installed on the described high pressure water pump outlet, form the output channel of this high-pressure hydraulic pump, the front end of described blast main is positioned at described jet pipe, its front opening is positioned at the inboard of described jet pipe front opening, described jet pipe inserts described housing along the tangential direction of described housing, be communicated with the intravital space of shell, its connecting portion is corresponding to the bottom of the described tube that refluxes.
The annular effluent trough that the top of described housing is provided with annular overflow weir and is made of with housing sidewall overflow weir, described annular effluent trough connects the rising pipe of this device.
Described housing bottom is provided with mud-scraping mechanism and mud discharging mouth.
Owing to adopt the mode of jet aeration, power resources are in high-pressure hydraulic pump, and the depth of water that therefore allows to use is far longer than with the aeration head of high-pressure air as power, and the area that same processing power need be taken reduces; Because jet pipe tangentially inserts housing, jet forms the current that rise along sideway swivel in the housing in housing, further improved the contact of dirty water oxygen with pollution substance thus, has improved decontamination effect improving; Because the outlet (the front end mouth of pipe) of blast main is positioned at the outlet of described jet pipe, when having high speed jetting stream to penetrate in the jet pipe, form the intensive negative pressuren zone at blast main outlet annex, attract the airflow outgoing air conduit and mix with current, air molecule and water molecules strong collision in swiftly flowing process, form the mixture of gas-liquid two-phase, increased mass transfer intensity significantly, form good aeration effect; Because jet has water pump to form, can in darker water, form jet and carry out aeration, therefore the depth of water of its use is significantly greater than the use depth of water that has aeration head now, enlarged the depth of water of corresponding aerobic treatment equipment, can reduce floor space twice in same water treatment thus, improve the utilization ratio in place.In addition, because this device can increase the depth of water, when the depth of water is enough big, mud is the meeting natural subsidence in the process that rises with the sewage rotation, to reduce the sludge content in the overflow water, has both helped follow-up treatment process, help keeping the intravital sludge quantity of shell again, can omit the required mud of common sludge sump thus and reflux, increase considerably the intravital activated sludge concentration of shell, increase substantially biochemical effect.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of the efflux aerator that the present invention relates to.
Embodiment
Referring to Fig. 1 and 2, the present invention relates to a kind of backflow type active sludge biochemical treatment device, comprise a cylinder shell 100 and a high efficient aeration device, be provided with a backflow tube 104 of both ends open up and down in the described housing, the upper end of the described tube that refluxes is with leaving the interval that constitutes sedimentation flooded zonevvv 103 between the described case top, the lower end is with leaving the interval that constitutes mud district 106 between the described housing bottom, outer wall is with leaving the interval that constitutes eddy flow path 10 5 between the described inner walls, described efflux aerator comprises a high-pressure hydraulic pump 110, jet pipe 112 and some blast mains 116, described jet pipe is installed on the described high pressure water pump outlet, form the output channel of high-pressure hydraulic pump, the front end of described blast main is positioned at described jet pipe, its front opening is positioned at the inboard of the front opening of described jet pipe, described jet pipe inserts described housing along the tangential direction of described housing, be communicated with the intravital space of shell, its connecting portion is corresponding to the bottom of the described tube that refluxes.
After the jet that is mixed with air and sewage tangentially enters housing, in housing, form the eddy flow that rises, make air, the intravital mud thorough mixing of sewage and shell, improve the biochemical reaction degree effectively, after the current that rise reach the sedimentation flooded zonevvv, flow velocity descends rapidly, the mud that is positioned at the tube top of refluxing relies on natural gravity to begin sedimentation and together moves down along the tube that refluxes with recirculation water, enter the mud district, the supernatant water at top flows through overflow weir, enters overflow groove, and flows out from water outlet, the part mud in mud district can circulate with backflow sewage, has improved concentration of activated sludge thus.
The annular effluent trough that the top of described housing is provided with annular overflow weir 101 and is made of with housing sidewall overflow weir, described annular effluent trough connects the rising pipe 102 of this device, thus by the overflow water outlet.When the depth of water is enough big, mud is the meeting natural subsidence in the process that rises with the sewage rotation, to reduce the sludge content in the overflow water, both helped follow-up treatment process, help keeping the intravital sludge quantity of shell again, can omit the required mud of common sludge sump thus and reflux, increase considerably the intravital activated sludge concentration of shell, increase substantially biochemical effect.
Described housing bottom is provided with mud-scraping mechanism 107 and mud discharging mouth, is used for the discharging of mud.
The leading portion 113 of described each blast main is positioned at described jet pipe, and its front opening is positioned at the front opening inboard 114 of described jet pipe.
Described blast main is provided with the air intlet 117 that is positioned at the jet pipe outside, so that allow air admission when work.
The part of described blast main is positioned at described jet pipe, and another part is positioned at outside the described jet pipe.
The axis of described blast main exit end is overlapping or parallel with the axis of described jet pipe corresponding position.
When the quantity of described blast main when being a plurality of, each blast main can be along a circle distribution, and in the middle of also can a blast main being positioned at, other blast mains circumferentially.A plurality of blast mains are set, help improving the aeration effect.
Usually, near the outlet of jet pipe and blast main, jet pipe and blast main are straight tube, with the disadvantageous effect of avoiding the miscarriage of pipe bending correlation to give birth to.
The described blast main external diameter that is positioned at jet pipe should be less than the jet pipe internal diameter, leave gap 116 between the jet pipe inner side-wall of its sidewall with corresponding position, this gap has constituted one section passage of current, because the net sectional area of this section passage is significantly less than the total sectional area of jet pipe, so current improve in the velocity of flow of this section, produce bigger negative pressure thus, improved mixed effect.
The diameter that described blast main is positioned at the part of jet pipe outside can also can be equal to or greater than the jet pipe diameter less than the jet pipe diameter, requires to decide on concrete conveying.
Described jet pipe and blast main all can be isometrical pipes, to make things convenient for processing and manufacturing, can at least one be not isometrical pipes also, with flow velocity and the resistance requirement that adapts to different positions.When adopting not isometrical pipe, the reducing place can be in the junction of jet pipe and blast main, also can be at other positions.
Can adopt welding, single injection-molded or other any-modes to connect between described blast main and the jet pipe.
In the present invention, the pressure of described high-pressure hydraulic pump requires to look concrete working conditions and determines, there is no fixed standard in, and in the time can forming jet at the bottom and have enough pressure heads to form negative pressuren zone in jet pipe, this water pump just can have been thought so-called high pressure.
For reduce the resistance that blast main causes to jet pipe in jet pipe, the length that described blast main is positioned at jet pipe is difficult for long.
The exit end face of described blast main and jet pipe generally should with the axis normal of jet pipe, help improving the aeration effect like this.
Before being oriented with the jet mobile in the specification sheets of the present invention.
Claims (10)
1. backflow type active sludge biochemical treatment device, it is characterized in that comprising a cylinder shell and a high efficient aeration device, be provided with a backflow tube of both ends open up and down in the described housing, the upper end of the described tube that refluxes is with leaving the interval that constitutes the sedimentation flooded zonevvv between the described case top, the lower end is with leaving the interval that constitutes the mud district between the described housing bottom, outer wall is with leaving the interval that constitutes the eddy flow passage between the described inner walls, described high efficient aeration device comprises a high-pressure hydraulic pump, a jet pipe and some blast mains, described jet pipe is installed on the described high pressure water pump outlet, form the output channel of this high-pressure hydraulic pump, the front end of described blast main is positioned at described jet pipe, its front opening is positioned at the inboard of described jet pipe front opening, described jet pipe inserts described housing along the tangential direction of described housing, be communicated with the intravital space of shell, its connecting portion is corresponding to the bottom of the described tube that refluxes.
2. backflow type active sludge biochemical treatment device as claimed in claim 1, it is characterized in that the annular effluent trough that the top of described housing is provided with annular overflow weir and is made of with housing sidewall overflow weir, described annular effluent trough connects the rising pipe of this device, and the bottom of described housing is provided with mud-scraping mechanism and mud discharging mouth.
3. backflow type active sludge biochemical treatment device as claimed in claim 1 or 2 is characterized in that described blast main is provided with the air intlet that is positioned at the jet pipe outside.
4. backflow type active sludge biochemical treatment device as claimed in claim 3 is characterized in that the part of described blast main is positioned at described jet pipe, and another part is positioned at outside the described jet pipe.
5. backflow type active sludge biochemical treatment device as claimed in claim 4 is characterized in that the axis of described blast main exit end is overlapping or parallel with the axis of described jet pipe corresponding position.
6. backflow type active sludge biochemical treatment device as claimed in claim 5, the quantity that it is characterized in that described blast main is a plurality of, and each blast main is along a circle distribution, and in the middle of perhaps one of them blast main was positioned at, other blast mains were circumferentially.
7. backflow type active sludge biochemical treatment device as claimed in claim 5 is characterized in that near the outlet of jet pipe and blast main, described jet pipe and blast main are straight tube.
8. backflow type active sludge biochemical treatment device as claimed in claim 7, it is characterized in that the described blast main external diameter of jet pipe that is positioned at is less than the jet pipe internal diameter, leave the gap between the jet pipe inner side-wall of its sidewall with corresponding position, this gap has constituted one section passage of current.
9. backflow type active sludge biochemical treatment device as claimed in claim 8 is characterized in that described jet pipe and blast main all are isometrical pipes.
10. backflow type active sludge biochemical treatment device as claimed in claim 9 is characterized in that adopting between described blast main and the jet pipe welding or single injection-molded mode to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101121370A CN101585589A (en) | 2008-05-20 | 2008-05-20 | Backflow type active sludge biochemical treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101121370A CN101585589A (en) | 2008-05-20 | 2008-05-20 | Backflow type active sludge biochemical treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN101585589A true CN101585589A (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101121370A Pending CN101585589A (en) | 2008-05-20 | 2008-05-20 | Backflow type active sludge biochemical treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982425A (en) * | 2010-11-08 | 2011-03-02 | 新疆石油勘察研究设计院（有限公司） | In-tank filtering backwashing water recycle device |
-
2008
- 2008-05-20 CN CNA2008101121370A patent/CN101585589A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982425A (en) * | 2010-11-08 | 2011-03-02 | 新疆石油勘察研究设计院（有限公司） | In-tank filtering backwashing water recycle device |
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Open date: 20091125 |