CN2365208Y - Sewage biological treatment apparatus - Google Patents
Sewage biological treatment apparatus Download PDFInfo
- Publication number
- CN2365208Y CN2365208Y CN99225799U CN99225799U CN2365208Y CN 2365208 Y CN2365208 Y CN 2365208Y CN 99225799 U CN99225799 U CN 99225799U CN 99225799 U CN99225799 U CN 99225799U CN 2365208 Y CN2365208 Y CN 2365208Y
- Authority
- CN
- China
- Prior art keywords
- tank body
- layer
- sedimentation tank
- sewage
- sedimentation
- 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
- 239000010865 sewage Substances 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims description 87
- 239000010802 sludge Substances 0.000 claims description 31
- 238000000926 separation method Methods 0.000 claims description 25
- 238000005273 aeration Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract 2
- 238000005276 aerator Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model relates to a sewage biological treating device which comprises a settling tank body, a sewage inlet pipe, a water outlet pipe for leading out treated water, and a soil discharging device. The utility model is characterized in that the settling tank body is divided into a sewage settling layer, a biological treating layer, and a filter separating layer, and floating filtering material is filled in the biological treating layer and the filter separating layer; a quantitative trough and a water guide pipe which are connected with sewage inlet pipe are arranged on the settling tank body, and the other end of the water guide pipe extends into the settling layer; the lower part of the biological treating layer is provided with an aerator for sending fresh oxygen into the settling tank body; one end of the soil discharging device extends along the inner wall of the tank body into the settling layer, and the other end extends out of the tank body.
Description
The utility model relates to a sewage treatment device especially relates to a be used for to the transformation of current sewage treatment facility, is about to the sewage sedimentation tank among the original facility and reforms transform into the sewage biological treatment device who has sludge sedimentation function and biological treatment function.
The sewage treatment apparatus of the prior art usually adopts a sedimentation tank for separating treated water from sludge in the sewage treatment apparatus of the activated sludge method and the contact oxidation method, that is, the common method is to flow a mixed solution of sludge and sewage into the sedimentation tank, settle the mixed solution by the gravity of the sludge, and settle the sludge at the bottom of the sedimentation tank after several hours of detention, thereby separating the treated water from the sludge. However, the structure is simple, so that the sewage treatment device only has the functions of precipitating sludge and sewage and separating treated water; the water quality of the treated water cannot meet the drainage standard, so that equipment must be added for water quality treatment to discharge water, so that the equipment investment and the floor area of sewage treatment are increased, and the increase of land occupation is difficult in some cases.
An object of the utility model is to provide a modified biological sewage treatment device, it can both keep the precipitation separation function on the basis of original biological treatment sedimentation tank facility, and internal energy carries out more effectual advanced treatment to the processing water again, makes it the processing water more clear and reach the effluent standard, from this, both reducible investment need not increase facility area, can reach the quality of water of drainage again to satisfy the requirement of society and environmental protection.
The purpose of the utility model is realized like this:
a wastewater biological treatment plant comprising: a sedimentation tank body which is in a hollow container shape, a sewage inlet pipe communicated with the sedimentation tank body, a water outlet pipe communicated with the upper part of the sedimentation tank body and capable of leading out treated water, and a sludge discharge device capable of discharging sludge and sewage out of the sedimentation tank body; the method is characterized in that:
the sedimentation tank body is divided into three layers, wherein the lower part of the sedimentation tank body is a sewage sedimentation layer, a biological treatment layer and a filtering separation layer are respectively arranged above the sewage sedimentation layer, and floating filter materials are filled in the biological treatment layer and the filtering separation layer;
a quantitative groove connected with a sewage inlet pipe is arranged on the upper surface of the sedimentation tank body, a water guide pipe communicated with the quantitative groove is arranged at the lower end of the quantitative groove, and the other end of the water guide pipe extends into a sewage sedimentation layer at the lower part of the sedimentation tank body;
an aeration device is arranged at the lower part of the biological treatment layer of the sedimentation tank body, namely the bottom of the filter material, and is a gas diffusion pipe, one end of the gas diffusion pipe is communicated with the outside, and fresh oxygen can be sent into the sedimentation tank body through the gas diffusion pipe;
the sludge discharging device is used for discharging sludge by gravity or power of a water pump and air stripping, and is a tubular body, one end of the tubular body extends to a sewage precipitation layer at the lower part of the sedimentation tank body along the inner wall of the tank body, and the other end of the tubular body extends to the outside of the tank body.
In the above biological sewage treatment apparatus, a water spray cleaning device, which is a water spray inlet pipe, is disposed at the top of the sedimentation tank body and is used for washing the floating filter material filled in the biological treatment layer and the filtration separation layer.
In the above sewage biological treatment apparatus, the height of the sedimentation layer ranges from one fourth to three fifths of the height of the whole sedimentation tank.
In the above biological sewage treatment apparatus, the floating filter material is a particle made of an organic material, and has a specific gravity of less than 0.5 and a particle size of 4 to 50 mm.
In the above sewage biological treatment apparatus, the filling height of the floating filter material filled in the biological treatment layer and the filtration separation layer is more than one fourth of the tank body.
The utility model discloses biological sewage treatment device is owing to adopted foretell water purification scheme, makes it compare with prior art and gathers following advantage and positive effect that have:
1. the utility model can carry out the biological filtration treatment and the filtration separation treatment in the same body without arranging the sedimentation tank and the treatment tank at the same time because the sedimentation tank body is internally provided with the sewage sedimentation layer, the biological treatment layer and the filtration separation layer as well as the floating filter material filled in the biological treatment layer and the filtration separation layer;
2. the utility model retains the original sedimentation function in the sewage sedimentation layer, so the drainage of the original treatment facility can still utilize the device to perform sludge sedimentation, and the biological treatment layer filled with the filler is also beneficial to improving the sedimentation and separation effect of the sludge;
3. the aeration device is arranged at the bottom of the lower part of the biological treatment layer of the sedimentation tank body, so that the aeration device can not only oxidize the water in the tank, but also play a certain role in preventing the filter material layer from being blocked, and simultaneously, the filtering separation layer can effectively separate the sludge and the treated water of biological treatment, so that the drainage requirement can be met without precipitation separation;
4. the utility model discloses owing to be equipped with watering belt cleaning device at sedimentation tank cell body top, it can wash filling the filter material in biological treatment layer and filtration separation layer to prevent the jam of filter material layer, prevent to produce water odor and insect pest, guarantee that play water quality of water is up to standard.
The objects, specific structural features and advantages of the present invention will be further understood from the following description of an embodiment of the biological wastewater treatment apparatus according to the present invention, taken in conjunction with the accompanying drawings. Wherein, the attached drawings are as follows:
FIG. 1 is a schematic structural view of a biological sewage treatment apparatus according to the present invention.
Referring to fig. 1, the sewage biological treatment apparatus of the present invention comprises: a sedimentation tank body 1, a sewage inlet pipe 2 which is positioned at the upper part of the sedimentation tank body 1 and is communicated with the sedimentation tank body 1, a water outlet pipe 3 which is communicated with the upper part of the sedimentation tank body 1 and can lead out the treated water, and a sludge discharge device 4 which can discharge sludge and sewage out of the sedimentation tank body 1; wherein,
the sedimentation tank body 1 is in a hollow container shape, the shape of the sedimentation tank body 1 can be a flat bottom, and also can be a nest bottom or a cone bottom, and the sedimentation tank body 1 in the utility model adopts the cone bottom; the sedimentation tank body 1 is divided into three layers, a sewage sedimentation layer 11 is positioned at the lower part of the sedimentation tank body 1, a biological treatment layer 12 and a filtering separation layer 13 are respectively positioned on the sewage sedimentation layer 11, and floating filter materials 20 are filled in the biological treatment layer 12 and the filtering separation layer 13; the height of the sedimentation layer 11 should be within a proper range, and in order to be beneficial to the sedimentation of the sludge, the height of the sedimentation layer is preferably within a range of one fourth to three fifths of the height of the whole sedimentation tank body 1; the biological treatment layer 12 consists of a floating filter material 20 and an aeration device 23 positioned at the bottom of the filter material 20, the aeration device 23 is tubular, namely an air diffusing pipe, one end of the aeration device 23 is communicated with the outside, and fresh oxygen can be sent into the sedimentation tank body 1 through the air diffusing pipe 23 and a plurality of holes arranged on the air diffusing pipe; the filtering separation layer 13 consists of floating filter material 20; the floating filter material 20 is a particle made of organic material, the specific gravity is lower than 0.5, the particle size range is 4-50 mm, the filling height is proper in order to ensure that the filter material layer has good biological treatment capacity, the filling height is more than one fourth of the tank body 1, and the floating filter material 20 has low porosity and has a certain height, so that the floating filter material has great treatment capacity for most organisms. The top of sedimentation tank cell body 1 be equipped with watering belt cleaning device 24, it is a tubulose watering inlet tube, through the watering of watering inlet tube, makes it wash the come-up filter material 20 who fills in biological treatment layer 12 and filtration separation layer 13, can prevent the jam of filter material layer from this, prevents to produce water odor and insect pest, guarantees that water quality of water is up to standard.
The sewage inlet pipe 2 is connected with a quantitative groove 21 arranged on the upper surface of the sedimentation tank body 1, a water guide pipe 22 communicated with the quantitative groove 21 is arranged at the lower end of the quantitative groove 21, the other end of the water guide pipe 22 extends into a sewage sedimentation layer 11 at the lower part of the sedimentation tank body 1, so that the sewage entering the sewage inlet pipe 2 flows into the sewage sedimentation layer 11, and the sewage can be effectively treated and separated by passing through the biological treatment layer 12 and the filtering separation layer 13.
The water outlet pipe 3 is arranged at the upper part of the sedimentation tank body 1 and is communicated with the filtering and separating layer 13, so that the water reaching the standard after being treated by the biological treatment layer 12 and the filtering and separating layer 13 is led out of the sedimentation tank body 1 along the water outlet pipe 3.
The sludge discharge device 4 is a tubular body, one end of the tubular body extends into a sewage sedimentation layer 11 at the lower part of the sedimentation tank body 1 along the inner wall of the tank body 1, and sludge accumulated in the sedimentation layer 11 is discharged outside the tank body 1 of the sedimentation tank through machinery, air lifting or a pipeline valve.
The utility model discloses biological sewage treatment device is like this work:
when water is treated: the mixed liquid of sludge and sewage is sent into a quantitative groove 21 positioned on the upper surface of the sedimentation tank body 1 by a water inlet pipe 2, and the mixed liquid of sludge and sewage is controlled to flow into a sewage sedimentation layer 11 on the lower part of the sedimentation tank body 1 along a water guide pipe 22 communicated with the quantitative groove 21 by the quantitative groove 21, so that the sewage entering from the sewage inlet pipe 2 flows into the sewage sedimentation layer 11; the mixed liquid of sludge and sewage is sent into a biological treatment layer 12 and a filtering separation layer 13 by the pressure of water and the thrust of the air supply of an aeration device 23, and the treated water is led out of a sedimentation tank body 1 by a water outlet pipe 3 communicated with the filtering separation layer 13 through the biological filtration treatment and the filtering separation treatment of a floating filter material 20.
When washing, stopping water feeding and aeration, and standing; then, discharging the sludge accumulated in the sedimentation layer 11 outside the sedimentation tank body 1 by using a sludge discharge device 4; then, the water spraying and cleaning device 24 positioned at the top of the sedimentation tank body 1 is used for washing the floating filter material 20 through the tubular water spraying and water inlet pipe thereof so as to wash dirt possibly positioned in the filter material.
To sum up, the utility model discloses biological sewage treatment device reforms transform into the biological sewage treatment device who has degree of depth biological treatment function on the basis of original biological treatment sedimentation tank facility, and it has not only preserved the precipitation separation function of original facility, has biological filtration again and filtration separation treatment's function, makes it the treated water more clear and reach the effluent standard, satisfies the requirement of society and environmental protection.
Claims (5)
1. A wastewater biological treatment plant comprising:
a sedimentation tank body (1) which is in a hollow container shape,
a sewage inlet pipe (2) communicated with the sedimentation tank body (1),
a water outlet pipe (3) which is communicated with the upper part of the sedimentation tank body (1) and can lead out the treated water,
a sludge discharge device (4) which can discharge sludge and sewage out of the sedimentation tank body (1);
the method is characterized in that:
the sedimentation tank body (1) is divided into three layers, wherein the lower part of the sedimentation tank body (1) is provided with a sewage sedimentation layer (11), a biological treatment layer (12) and a filtering separation layer (13) are respectively arranged on the sewage sedimentation layer (11), and floating filter materials (20) are filled in the biological treatment layer (12) and the filtering separation layer (13);
a quantitative groove (21) connected with the sewage inlet pipe (2) is arranged on the upper surface of the sedimentation tank body (1), a water guide pipe (22) communicated with the quantitative groove (21) is arranged at the lower end of the quantitative groove (21), and the other end of the water guide pipe (22) extends into a sewage sedimentation layer (11) at the lower part of the sedimentation tank body (1);
an aeration device (23) is arranged at the lower part of the biological treatment layer (12), namely the bottom of the filter material (20), of the sedimentation tank body (1), the aeration device is a gas diffusion pipe, one end of the gas diffusion pipe is communicated with the outside, and fresh oxygen can be sent into the sedimentation tank body (1) through the gas diffusion pipe (23);
the sludge discharge device (4) is used for discharging sludge by gravity or power of a water pump and air stripping, and is a tubular body, one end of the sludge discharge device extends into a sewage sedimentation layer (11) at the lower part of the sedimentation tank body (1) along the inner wall of the tank body (1), and the other end of the sludge discharge device extends out of the tank body (1).
2. The biological wastewater treatment plant according to claim 1, characterized in that: the top of the sedimentation tank body (1) is provided with a water spraying and cleaning device (24) which is a water spraying and water inlet pipe and is used for washing the floating filter material (20) filled in the biological treatment layer (12) and the filtering and separating layer (13).
3. The biological wastewater treatment plant according to claim 1, characterized in that: the height range of the sedimentation layer (11) is between one fourth and three fifths of the height of the whole sedimentation tank body (1).
4. The biological wastewater treatment plant according to claim 1, characterized in that: the floating filter material (20) is particles formed by organic materials, the specific gravity of the floating filter material is lower than 0.5, and the particle size range is 4-50 mm.
5. The biological wastewater treatment plant according to claim 1, characterized in that: the filling height of the floating filter material (20) filled in the biological treatment layer (12) and the filtering separation layer (13) is more than one fourth of the filling height of the tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99225799U CN2365208Y (en) | 1999-02-15 | 1999-02-15 | Sewage biological treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99225799U CN2365208Y (en) | 1999-02-15 | 1999-02-15 | Sewage biological treatment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2365208Y true CN2365208Y (en) | 2000-02-23 |
Family
ID=34015604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99225799U Expired - Fee Related CN2365208Y (en) | 1999-02-15 | 1999-02-15 | Sewage biological treatment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2365208Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580327B (en) * | 2009-03-25 | 2011-10-05 | 李晓玉 | Sewage treatment process and device thereof |
-
1999
- 1999-02-15 CN CN99225799U patent/CN2365208Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580327B (en) * | 2009-03-25 | 2011-10-05 | 李晓玉 | Sewage treatment process and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |