CN212713125U - A/O process integrated sewage treatment device - Google Patents
A/O process integrated sewage treatment device Download PDFInfo
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- CN212713125U CN212713125U CN202020428325.0U CN202020428325U CN212713125U CN 212713125 U CN212713125 U CN 212713125U CN 202020428325 U CN202020428325 U CN 202020428325U CN 212713125 U CN212713125 U CN 212713125U
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Abstract
The utility model belongs to the technical field of sewage treatment, specifically a AO technology integration sewage treatment plant, including the box of integration, the box is equipped with the equalizing basin in proper order, the oxygen deficiency pond, good oxygen pond, the sedimentation tank, disinfection pond and sludge impoundment, good oxygen pond is provided with nitrify liquid back flow and is connected to the oxygen deficiency pond, the sedimentation tank is provided with the second and arranges mud pump connection to sludge impoundment, sludge impoundment is provided with sewage backwash pump and mud backwash pump, sewage backwash pump is connected to the oxygen deficiency pond, mud backwash pump is connected to the equalizing basin, the equalizing basin is provided with the periodic mud of first mud pump of arranging, the utility model discloses carry out integration setting with multiple cell body, set up multiple back flow between the cell body and improved nitrogen and phosphorus removal efficiency and mud inner loop efficiency, reduced the sewage treatment cost to compact structure, convenient.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an AO technology integration sewage treatment plant.
Background
With the improvement of national environmental protection requirements, the common sewage treatment method cannot meet the requirements, and particularly, the content of nitrogen and phosphorus in sewage is difficult to effectively remove. The function of sewage treatment plants is gradually changed from the purpose of removing organic matters only to the purpose of removing both organic matters and nitrogen and phosphorus. In the biological nitrogen and phosphorus removal process, nitrogen and phosphorus removal relates to biochemical reactions such as nitrification, denitrification, phosphorus release, phosphorus absorption and the like, and each process has different requirements on microbial composition, substrate type and environmental conditions, so that the contradiction relationship among the processes is inevitably generated in the same sewage treatment process system.
The prior sewage treatment plant process has the following problems and contradictions: the internal circulation of the sludge is not thorough, and the denitrification and dephosphorization effects of the sewage are poor; the secondary pollution to the water quality is easy to generate.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an AO technology integration sewage treatment plant has improved nitrogen and phosphorus removal efficiency and mud inner loop efficiency, has reduced the sewage treatment cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a AO technology integration sewage treatment plant, a serial communication port, box including the integration, be equipped with equalizing basin, oxygen deficiency pond, good oxygen pond, sedimentation tank, disinfection pond and the sludge impoundment that connects gradually in the box, be equipped with the sewage inlet tube on the box, good oxygen pond is provided with nitrifies liquid back flow and is connected to the oxygen deficiency pond, the oxygen deficiency pond with good oxygen bottom of the pool intercommunication, the sedimentation tank is provided with the second and arranges the dredge pump and be connected to the sludge impoundment, the sedimentation tank is connected to the disinfection pond, the disinfection pond is provided with degassing unit, and the disinfection pond is provided with the drain pipe, and the sludge impoundment is provided with sewage backwash pump and mud backwash pump, and sewage backwash pump is connected to the oxygen deficiency pond, and mud backwash pump is connected to the equalizing basin.
Further, the sewage inlet pipe is provided with a branch pipe connected to the upper part of the anoxic tank.
The regulating tank is communicated with the bottom of the anoxic tank.
Further, 65-80% of sewage in the regulating tank and returned sludge are mixed and then discharged into an anoxic tank, and the sewage and the returned sludge are fully and uniformly mixed and then subjected to phosphorus release reaction water treatment and anoxic tank water treatment; wherein the hydraulic retention time of the bioselective zone is 1.5 h.
Further, the ratio of the sludge returned by the sludge return pump to the discharged sludge is 1: 2.
Furthermore, two ends of the nitrifying liquid return pipe are respectively arranged at the upper part of the anoxic tank and the upper part of the aerobic tank.
Further, an air blower is arranged on one side of the aerobic tank and connected with an aeration pipe, the aeration pipe is positioned at the bottom of the aerobic tank, and the aeration pipe is of an inverted T-shaped structure.
The aeration pipe is the structure of falling T shape, and the aeration hole that a plurality of equidistance in-line were arranged is upwards seted up to horizontal aeration pipe shaft.
Furthermore, the reflux ratio of the nitrifying liquid reflux pipe is 1.5-2, partial sewage is mixed with the reflux nitrifying liquid, denitrifying phosphorus accumulating bacteria are used for denitrifying and absorbing phosphorus by using nitrate and nitrite as electron acceptors.
Furthermore, the retention time in the water of the anoxic tank is 2-3h, and the residual sludge-water mixed liquor enters the aerobic tank.
Furthermore, the hydraulic retention time of the aerobic tank is 3-4h, the mud-water mixed liquid in the aerobic tank enters a sedimentation tank, and supernatant effluent weirs are arranged in the sedimentation tank and the disinfection tank.
The utility model has the advantages that
The utility model relates to a AO technology integration sewage treatment plant, the device carry out integration setting with multiple cell body, set up the mud backwash pump between the cell body and reduce mud emission and improve mud inner loop efficiency, reduced the sewage treatment cost to compact structure, the convenient removal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
description of reference numerals: the device comprises a regulating tank 1, a sewage inlet pipe 11, a branch pipe 12, a first sludge discharge pump 13, an anoxic tank 2, an aerobic tank 3, a blower 31, an aeration pipe 32, a nitrifying liquid return pipe 33, a sedimentation tank 4, a sedimentation tank effluent weir 41, an outlet pipe 42, a second sludge discharge pump 43, a sludge tank 5, a sludge tank effluent weir 51, a sludge tank 6, a sewage return pump 61, a supernatant return pipe 62, a sludge discharge pipe 63 and a sludge return pump 64.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout, and which are illustrated in the following description with reference to the accompanying drawings, and which are meant to be illustrative only and not to be construed as limiting the invention, and the description is therefore intended to be illustrative only, and the practice of the inventive concepts herein is not limited solely to the exemplary embodiments described herein and the illustrations in the drawings, which are not limiting.
As shown in fig. 1
Example 1
The utility model provides a AO technology integration sewage treatment plant, a serial communication port, box including the integration, be equipped with equalizing basin, oxygen deficiency pond, good oxygen pond, sedimentation tank, disinfection pond and the sludge impoundment that connects gradually in the box, be equipped with the sewage inlet tube on the box, good oxygen pond is provided with nitrifies liquid back flow and is connected to the oxygen deficiency pond, the oxygen deficiency pond with good oxygen bottom of the pool intercommunication, the sedimentation tank is provided with the second and arranges the dredge pump and be connected to the sludge impoundment, the sedimentation tank is connected to the disinfection pond, the disinfection pond is provided with degassing unit, and the disinfection pond is provided with the drain pipe, and the sludge impoundment is provided with sewage backwash pump and mud backwash pump, and sewage backwash pump is connected to the oxygen deficiency pond, and mud backwash pump is connected to the equalizing basin.
The sewage inlet pipe is provided with branch connection to oxygen deficiency pond upper portion, equalizing basin and oxygen deficiency bottom of the pool portion intercommunication.
Mixing 65% of sewage in the regulating tank with the return sludge, and then discharging the mixture into an anoxic tank, and fully and uniformly mixing the sewage and the return sludge, and then carrying out phosphorus release reaction water treatment and anoxic tank water treatment; wherein the hydraulic retention time of the bioselective zone is 1.5 h.
The ratio of the sludge returned by the sludge return pump to the discharged sludge is 1: 2.
Two ends of the nitrifying liquid return pipe are respectively arranged at the upper part of the anoxic tank and the upper part of the aerobic tank.
An air blower is arranged on one side of the aerobic tank and connected with an aeration pipe, and the aeration pipe is positioned at the bottom of the aerobic tank.
The aeration pipe is the structure of falling T shape, and the aeration hole that a plurality of equidistance in-line were arranged is upwards seted up to horizontal aeration pipe shaft.
The reflux ratio of the nitrifying liquid reflux pipe is 1.5, partial sewage is mixed with the reflux nitrifying liquid, denitrifying phosphorus-accumulating bacteria are used for denitrifying and absorbing phosphorus by using nitrate and nitrite as electron acceptors.
The retention time in the water of the anoxic tank is 2 hours, and the residual sludge-water mixed liquor enters the aerobic tank.
The hydraulic retention time of the aerobic tank is 3 hours, the mud-water mixed liquid of the aerobic tank enters the sedimentation tank, and the sedimentation tank and the disinfection tank are both provided with supernatant effluent weirs.
Example 2
The utility model provides a AO technology integration sewage treatment plant, a serial communication port, box including the integration, be equipped with equalizing basin, oxygen deficiency pond, good oxygen pond, sedimentation tank, disinfection pond and the sludge impoundment that connects gradually in the box, be equipped with the sewage inlet tube on the box, good oxygen pond is provided with nitrifies liquid back flow and is connected to the oxygen deficiency pond, the oxygen deficiency pond with good oxygen bottom of the pool intercommunication, the sedimentation tank is provided with the second and arranges the dredge pump and be connected to the sludge impoundment, the sedimentation tank is connected to the disinfection pond, the disinfection pond is provided with degassing unit, and the disinfection pond is provided with the drain pipe, and the sludge impoundment is provided with sewage backwash pump and mud backwash pump, and sewage backwash pump is connected to the oxygen deficiency pond, and mud backwash pump is connected to the equalizing basin.
The sewage inlet pipe is provided with branch connection to oxygen deficiency pond upper portion, equalizing basin and oxygen deficiency bottom of the pool portion intercommunication.
Mixing 80% of sewage in the regulating tank with the return sludge, and then discharging the mixture into an anoxic tank, and fully and uniformly mixing the sewage and the return sludge, and then carrying out phosphorus release reaction water treatment and anoxic tank water treatment; wherein the hydraulic retention time of the bioselective zone is 1.5 h.
The ratio of the sludge returned by the sludge return pump to the discharged sludge is 1: 2.
Two ends of the nitrifying liquid return pipe are respectively arranged at the upper part of the anoxic tank and the upper part of the aerobic tank.
An air blower is arranged on one side of the aerobic tank and connected with an aeration pipe, and the aeration pipe is positioned at the bottom of the aerobic tank.
The aeration pipe is the structure of falling T shape, and the aeration hole that a plurality of equidistance in-line were arranged is upwards seted up to horizontal aeration pipe shaft.
In this affair example, the aeration pipe top is provided with small-size motor and is connected with the aeration pipe transmission, and when carrying out sewage treatment, the motor drives the aeration pipe and slowly rotates, and the aeration is even, improves reaction efficiency.
The reflux ratio of the nitrifying liquid reflux pipe is 2, partial sewage is mixed with the reflux nitrifying liquid, denitrifying phosphorus-accumulating bacteria are used for denitrifying and absorbing phosphorus by using nitrate and nitrite as electron acceptors.
The retention time in the water of the anoxic tank is 3h, and the residual sludge-water mixed liquor enters the aerobic tank.
The hydraulic retention time of the aerobic tank is 4 hours, the mud-water mixed liquid of the aerobic tank enters the sedimentation tank, and the sedimentation tank and the disinfection tank are both provided with supernatant effluent weirs.
Example 3
The utility model provides a AO technology integration sewage treatment plant, a serial communication port, box including the integration, be equipped with equalizing basin, oxygen deficiency pond, good oxygen pond, sedimentation tank, disinfection pond and the sludge impoundment that connects gradually in the box, be equipped with the sewage inlet tube on the box, good oxygen pond is provided with nitrifies liquid back flow and is connected to the oxygen deficiency pond, the oxygen deficiency pond with good oxygen bottom of the pool intercommunication, the sedimentation tank is provided with the second and arranges the dredge pump and be connected to the sludge impoundment, the sedimentation tank is connected to the disinfection pond, the disinfection pond is provided with degassing unit, and the disinfection pond is provided with the drain pipe, and the sludge impoundment is provided with sewage backwash pump and mud backwash pump, and sewage backwash pump is connected to the oxygen deficiency pond, and mud backwash pump is connected to the equalizing basin.
The sewage inlet pipe is provided with branch connection to oxygen deficiency pond upper portion, equalizing basin and oxygen deficiency bottom of the pool portion intercommunication.
Mixing 65% of sewage in the regulating tank with the return sludge, and then discharging the mixture into an anoxic tank, and fully and uniformly mixing the sewage and the return sludge, and then carrying out phosphorus release reaction water treatment and anoxic tank water treatment; wherein the hydraulic retention time of the bioselective zone is 1.5 h.
The ratio of the sludge returned by the sludge return pump to the discharged sludge is 1: 2.
Two ends of the nitrifying liquid return pipe are respectively arranged at the upper part of the anoxic tank and the upper part of the aerobic tank.
An air blower is arranged on one side of the aerobic tank and connected with an aeration pipe, and the aeration pipe is positioned at the bottom of the aerobic tank.
The aeration pipe is the structure of falling T shape, and the aeration hole that a plurality of equidistance in-line were arranged is upwards seted up to horizontal aeration pipe shaft.
In this embodiment, T type aeration pipe inlet end is provided with the motor, sets up reduction gear transmission between motor and the aeration pipe and is connected, makes the aeration pipe slowly rotate through the motor action, utilizes a single aeration pipe to carry out the aeration to whole treatment tank.
The reflux ratio of the nitrifying liquid reflux pipe is 1.5, partial sewage is mixed with the reflux nitrifying liquid, denitrifying phosphorus-accumulating bacteria are used for denitrifying and absorbing phosphorus by using nitrate and nitrite as electron acceptors.
The retention time in the water of the anoxic tank is 3h, and the residual sludge-water mixed liquor enters the aerobic tank.
The hydraulic retention time of the aerobic tank is 4 hours, the mud-water mixed liquid of the aerobic tank enters the sedimentation tank, and the sedimentation tank and the disinfection tank are both provided with supernatant effluent weirs.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art.
Claims (8)
1. The utility model provides a AO technology integration sewage treatment plant, a serial communication port, box including the integration, be equipped with equalizing basin, oxygen deficiency pond, good oxygen pond, sedimentation tank, disinfection pond and the sludge impoundment that connects gradually in the box, be equipped with the sewage inlet tube on the box, good oxygen pond is provided with nitrifies liquid back flow and is connected to the oxygen deficiency pond, the oxygen deficiency pond with good oxygen bottom of the pool intercommunication, the sedimentation tank is provided with the second and arranges the dredge pump and be connected to the sludge impoundment, the sedimentation tank is connected to the disinfection pond, the disinfection pond is provided with degassing unit, and the disinfection pond is provided with the drain pipe, and the sludge impoundment is provided with sewage backwash pump and mud backwash pump, and sewage backwash pump is connected to the oxygen deficiency pond, and mud backwash pump is connected to the equalizing basin.
2. The integrated A/O process sewage treatment plant according to claim 1 wherein the sewage inlet pipe is provided with a branch pipe connected to an anoxic tank.
3. The integrated A/O process sewage treatment plant according to claim 1, wherein the ratio of the sludge returned by the sludge return pump to the sludge discharged is 1: 2.
4. The integrated sewage treatment plant of the A/O process according to claim 1, wherein both ends of the nitrifying liquid return pipe are respectively disposed at the upper part of the anoxic tank and the upper part of the aerobic tank.
5. The integrated sewage treatment plant of the A/O process as claimed in claim 1, wherein a blower is provided at one side of the aerobic tank, and an aeration pipe is connected to the blower.
6. The integrated A/O process sewage treatment plant according to claim 5, wherein the aeration pipe is located at the bottom of the aerobic tank, and the aeration pipe is in an inverted T-shaped structure.
7. The integrated A/O process sewage treatment plant according to claim 1, wherein the reflux ratio of the nitrifying liquid reflux pipe is 1.5-2.
8. The integrated A/O process sewage treatment plant according to claim 1, wherein 65-80% of the sewage in the conditioning tank is mixed with return sludge and discharged into the anoxic tank.
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| CN202020428325.0U CN212713125U (en) | 2020-03-30 | 2020-03-30 | A/O process integrated sewage treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111285560A (en) * | 2020-03-30 | 2020-06-16 | 惠州市卓凡环保科技有限公司 | A/O process integrated sewage treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111285560A (en) * | 2020-03-30 | 2020-06-16 | 惠州市卓凡环保科技有限公司 | A/O process integrated sewage treatment device |
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