CN108585205A - A kind of A/O sewage-treatment plants and sewage treatment process - Google Patents
A kind of A/O sewage-treatment plants and sewage treatment process Download PDFInfo
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- CN108585205A CN108585205A CN201810651030.7A CN201810651030A CN108585205A CN 108585205 A CN108585205 A CN 108585205A CN 201810651030 A CN201810651030 A CN 201810651030A CN 108585205 A CN108585205 A CN 108585205A
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- sewage
- anoxic pond
- buffer pool
- concentration
- atp
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a kind of A/O sewage-treatment plants, including sequentially connected water feed apparatus, aerobic tank and sedimentation basin, wherein, the water feed apparatus includes flow controller and the anoxic pond being arranged in parallel and buffer pool, wherein, the anoxic pond and the buffer pool are connect with the aerobic tank respectively, and the flow controller is connect with the entrance of the anoxic pond and the buffer pool respectively, the sewage influx for controlling the anoxic pond and the buffer pool；It is provided with MLSS meters and ATP meters in the anoxic pond, is respectively used to measure the MLSS concentration of the treatment sewage and ATP concentration；Further include control centre, is connect respectively with MLSS meters, ATP meters and the flow controller, for controlling the discharge of sewage into the anoxic pond and the buffer pool.The adjusting of inflow can be carried out according to the activity of sludge using A/O sewage-treatment plants of the present invention, while there is stronger adaptibility to response to sudden load change.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of A/O sewage-treatment plants and sewage treatment process.
Background technology
When rich in N, P element sanitary wastewater or industrial wastewater enter natural water when, the eutrophication of water body can be caused
Pollution, A/O techniques are one of current most widely used denitrification dephosphorization techniques.But A/O techniques itself there are many limitations because
Element makes the variation fluctuation that its denitrogenation dephosphorizing efficiency is unable to get further promotion, especially influent quality directly affect its denitrogenation
Dephosphorization efficiency, problem is continuous in actual moving process.
It is apparent that when wastewater flow rate sharply increases or the substrate concentration of waste water rises, reactor for treatment load sharply increases,
Microbial activity is limited, and high load capacity easily causes sludge to expand, and forms vicious circle, and water outlet is not up to standard.Currently, engineer application
In existing relevant counter-measure repaired for the above situation, but a large amount of manpower and materials can be consumed in governance process,
Increase considerably operating cost.
Therefore, how based on technique itself the engineer application the problem of, seek more effective measures and set from technique
The design of the application and intelligence control system of counting end bond material is improved, and is reduced the outburst rate of malignant problem, is only solution
The basic place of engineering problem.
Invention content
It is a primary object of the present invention to overcome existing A/O techniques defect present in engineer application, provide a kind of A/
O sewage-treatment plants and sewage treatment process can have stronger answer according to the Active Regulation influent load of sludge to sudden load change
To ability, more practicability.
Technical scheme is as follows：
A kind of A/O sewage-treatment plants, including sequentially connected water feed apparatus, aerobic tank and sedimentation basin, wherein the water inlet dress
Set including flow controller and the anoxic pond that is arranged in parallel and buffer pool, wherein the anoxic pond and the buffer pool respectively with
The aerobic tank connection, the flow controller is connect with the entrance of the anoxic pond and the buffer pool respectively, for controlling
The sewage influx of the anoxic pond and the buffer pool.
As a kind of perferred technical scheme, it is provided with MLSS meters and ATP meters in the anoxic pond, is respectively used to measure institute
State the MLSS concentration and ATP concentration for the treatment of sewage；
As a kind of perferred technical scheme, further include control centre, counted respectively with the MLSS, the ATP is counted and the stream
Amount controller connects, for controlling the discharge of sewage into the anoxic pond and the buffer pool.
As a kind of perferred technical scheme, nitrification liquid reflux is additionally provided between the aerobic tank and the anoxic pond
Pipe, mud return line is additionally provided between the sedimentation basin and the anoxic pond.
As a kind of perferred technical scheme, it is provided with aeration tube in the buffer pool.
As a kind of perferred technical scheme, it is provided with fiberfill in the aerobic tank, and the fiberfill is filled out
It is 30-75% to fill rate.
As a kind of perferred technical scheme, the fiberfill is in basalt fibre, activated carbon fibre, wood-fibred
It is any.
A kind of A/O sewage treatment process, includes the following steps：
Step 1, treatment sewage enter the anoxic pond by the flow controller, and are counted by MLSS meters and ATP
Carry out the measurement of MLSS concentration and ATP concentration；
Step 2 obtains MLSS concentration and ATP concentration that the step 1 measures by the control centre, and by described in control
Flow controller carry out the anoxic pond, the buffer pool sewage into inbound traffics control；
Step 3, the sewage handled by the anoxic pond and the buffer pool enter the aerobic tank and pass through Aerobic Process for Treatment；
Step 4, the sewage by Aerobic Process for Treatment in the step 3 enter the sedimentation basin, complete by solid-liquid separation treatment
At sewage disposal.
As a kind of perferred technical scheme, further include step 5, in the nitrification liquid, the sedimentation basin in the aerobic tank
Sludge reflux to the anoxic pond in.
As a kind of perferred technical scheme, in the step 2, as ATP concentration/MLSS concentration ＜ 1.4,40%≤lack
When the sewage influx/total flow≤60%, 1.4 in oxygen pond≤ATP concentration/MLSS concentration ＜ 2.2, the sewage stream of 60%≤anoxic pond
When entering amount/total flow≤80%, ATP concentration/MLSS concentration >=2.2, sewage influx/total flow of 80%≤anoxic pond≤
100%。
Using above-mentioned technical proposal, following technique effect can be realized：
1）, in anoxic pond be equipped with MLSS meter and ATP meter, for measuring sludge concentration, sludge activity is judged, according to the two values
The removal ability that may determine that microbe matter in anoxic pond, using flow controller adjust distribution enter anoxic pond and
The wastewater flow rate of buffer pool, the load of anoxic pond is corresponding with the processing capacity of sludge, improves treatment effeciency；
2）And the waste water in the buffer pool that anoxic pond is arranged in parallel is after aeration, water correction, reduces the negative of biochemical reaction tank
Lotus alleviates sludge bulking, and the part water carbon source is relatively sufficient, can promote sludge concentration into aerobic tank, improve treatment effeciency,
Further, since the presence of buffer pool, the ability for coping with sudden load change greatly improves；
3）, in aerobic tank fiberfill setting, after the sludge adhered in fiberfill reaches certain thickness, in the fibre of accumulation
It ties up and forms anaerobic environment inside filler, when the apposition growth of sludge forms dynamic equilibrium with peeling in fiberfill, you can stablize
Ground is carried out at the same time anaerobic and aerobic processing, further increases sewage treating efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of A/O sewage-treatment plants of the present invention；
Fig. 2 is the process flow chart of A/O sewage treatment process of the present invention；
Wherein, 1- flow controllers, 2- buffer pools, 3- anoxic ponds, 31-MLSS meters, 32-ATP meters, 4- aerobic tanks, 5- sedimentation basins,
6- control centres.
Specific implementation mode
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, to foundation
A/O sewage-treatment plants and sewage treatment process proposed by the present invention its specific implementation mode, feature and its effect are described in detail
As after.
As shown in Figure 1, the invention discloses a kind of A/O sewage-treatment plants, including it is sequentially connected water feed apparatus, aerobic
Pond 4 and sedimentation basin 5, wherein water feed apparatus includes flow controller 1 and the anoxic pond 3 being arranged in parallel and buffer pool 2, wherein is lacked
Oxygen pond 3 and buffer pool 2 are connect with aerobic tank 4 respectively, and flow controller 1 is connect with the entrance of anoxic pond 3 and buffer pool 2 respectively,
Sewage influx for controlling anoxic pond 3 and buffer pool 2；
It is provided with MLSS in anoxic pond 3 and counts 31 and ATP meters 32, is respectively used to measure the MLSS concentration for the treatment of sewage and ATP is dense
Degree；
Further include control centre 6, is connect respectively with MLSS meters 31, ATP meters 32 and flow controller 1, by receiving 31 based on MLSS,
The MLSS concentration and ATP concentration that ATP meters 32 measure, and then control the discharge of sewage into anoxic pond 3 and buffer pool 2.
As a kind of perferred technical scheme, it is additionally provided with nitrification liquid return duct between aerobic tank 4 and anoxic pond 3, precipitates
Be additionally provided with mud return line between pond 5 and anoxic pond 3, be respectively used to by the nitrification liquid in aerobic tank 4 be back to anoxic pond 3,
By in the sludge reflux in sedimentation basin 5 to anoxic pond 3, to realize that denitrifying bacterium removes the nitrate nitrogen in anoxic pond 3, nitrifier
By nitrifier by mineralized nitrogen it is nitrate nitrogen in aerobic tank 4, it is final to realize effectively removing for the ammonia nitrogen in sewage.
As a kind of perferred technical scheme, be provided with aeration tube in buffer pool 2, to enter buffer pool 2 in sewage into
Row Air Exposure.
As a kind of perferred technical scheme, fiberfill is provided in aerobic tank 4, and the filling rate of fiberfill is
30-75%, specifically, the volume of fiberfill accounts for the 30-75% of 4 total volume of aerobic tank, fiberfill can realize the dirt in sewage
The accumulation of mud, to can reach absorption and decompose the effect of the organic pollution in sewage.
As a kind of perferred technical scheme, fiberfill is any in basalt fibre, activated carbon fibre, wood-fibred
Kind, the basalt fibre being preferably modified, with good bioaffinity.
As shown in Fig. 2, the invention also discloses a kind of A/O sewage treatment process, include the following steps：
Step 1, treatment sewage enter anoxic pond 3 by flow controller 1, and count 31 and ATP meters 32 by MLSS and carry out
The measurement of MLSS concentration and ATP concentration；
Step 2, the MLSS concentration measured by 6 obtaining step 1 of control centre and ATP concentration, and pass through and control flow controller 1
Carry out anoxic pond 3, buffer pool 2 sewage into inbound traffics control, to realize according to sewage quality to enter anoxic pond 3 dirt
Effective control of water so that the load of anoxic pond 3 and the processing capacity of sludge are corresponding, improve treatment effeciency；
Step 3, the sewage handled by anoxic pond 3 and buffer pool 2 enter aerobic tank 4 and pass through Aerobic Process for Treatment, wherein buffer pool 2
In sewage after Air Exposure, water correction reduces the load of biochemical reaction tank, alleviates sludge bulking, the part
Water carbon source is relatively sufficient, and sludge concentration can be promoted into aerobic tank 4, to improve treatment effeciency, in addition, the setting of buffer pool 2
The sewage quantity into anoxic pond 3 can be buffered so that the ability of device reply sudden load change greatly promotes；
Step 4, the sewage by Aerobic Process for Treatment in step 3 enter sedimentation basin 5, by solid-liquid separation treatment, complete sewage disposal.
As a kind of perferred technical scheme, further include step 5, the sludge in nitrification liquid, sedimentation basin 5 in aerobic tank 4
It is back in anoxic pond 3.
As a kind of perferred technical scheme, in step 2, as ATP concentration/MLSS concentration ＜ 1.4,40%≤anoxic pond 3
Sewage influx/total flow≤60%, 1.4≤ATP concentration/MLSS concentration ＜ 2.2 when, the sewage of 60%≤anoxic pond 3 flows into
When amount/total flow≤80%, ATP concentration/MLSS concentration >=2.2, sewage influx/total flow of 80%≤anoxic pond 3≤
100%, specifically, as ATP concentration/MLSS concentration ＜ 1.4, the water inlet ratio of anoxic pond 3 and buffer pool 2 is 6：4 to 4：6 it
Between, when 1.4≤ATP concentration/MLSS concentration ＜ 2.2, the water inlet ratio of anoxic pond 3 and buffer pool 2 is 8：2 to 6：Between 4, ATP
When concentration/MLSS concentration >=2.2, the water inlet ratio of anoxic pond 3 and buffer pool 2 is 10：0 to 8：Between 2.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the technical essence of the invention
To any simple modification, equivalent change and modification made by above example, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of A/O sewage-treatment plants, which is characterized in that including sequentially connected water feed apparatus, aerobic tank（4）And sedimentation basin
（5）, wherein the water feed apparatus includes flow controller（1）With the anoxic pond being arranged in parallel（3）And buffer pool（2）, wherein
The anoxic pond（3）With the buffer pool（2）Respectively with the aerobic tank（4）Connection, the flow controller（1）Respectively with institute
State anoxic pond（3）With the buffer pool（2）Entrance connection, for controlling the anoxic pond（3）With the buffer pool（2）Dirt
Water influx.
2. A/O sewage-treatment plants according to claim 1, which is characterized in that the anoxic pond（3）Inside it is provided with MLSS
Meter（31）It is counted with ATP（32）, it is respectively used to measure the MLSS concentration of the treatment sewage and ATP concentration.
3. A/O sewage-treatment plants according to claim 2, which is characterized in that further include control centre（6）, respectively with
The MLSS meters（31）, ATP meter（32）With the flow controller（1）Connection enters the anoxic pond for controlling（3）
With the buffer pool（2）The discharge of sewage.
4. A/O sewage-treatment plants according to claim 1, which is characterized in that the aerobic tank（4）With the anoxic pond
（3）Between be additionally provided with nitrification liquid return duct, the sedimentation basin（5）With the anoxic pond（3）Between be additionally provided with sludge reflux
Pipe.
5. A/O sewage-treatment plants according to claim 1, which is characterized in that the buffer pool（2）Inside it is provided with aeration
Pipe.
6. A/O sewage-treatment plants according to claim 1, which is characterized in that the aerobic tank（4）Inside it is provided with fiber
Filler, and the filling rate of the fiberfill is 30-75%.
7. A/O sewage-treatment plants according to claim 6, which is characterized in that the fiberfill be basalt fibre,
Any one of activated carbon fibre, wood-fibred.
8. the sewage treatment process of A/O sewage-treatment plants according to claim 1, which is characterized in that including walking as follows
Suddenly：
Step 1, treatment sewage pass through the flow controller（1）Into the anoxic pond（3）, and counted by MLSS（31）With
ATP is counted（32）Carry out the measurement of MLSS concentration and ATP concentration；
Step 2 passes through the control centre（6）The MLSS concentration and ATP concentration that the step 1 measures are obtained, and passes through control
The flow controller（1）Carry out the anoxic pond（3）, the buffer pool（2）Sewage into inbound traffics control；
Step 3, by the anoxic pond（3）With the buffer pool（2）The sewage of processing enters the aerobic tank（4）It carries out aerobic
Processing；
Step 4, the sewage by Aerobic Process for Treatment in the step 3 enter the sedimentation basin（5）, at separation of solid and liquid
Reason completes sewage disposal.
9. the sewage treatment process of A/O sewage-treatment plants according to claim 8, which is characterized in that further include step
5, the aerobic tank（4）Interior nitrification liquid, the sedimentation basin（5）Interior sludge reflux is to the anoxic pond（3）In.
10. the sewage treatment process of A/O sewage-treatment plants according to claim 8, which is characterized in that the step 2
In, as ATP concentration/MLSS concentration ＜ 1.4,40%≤anoxic pond（3）Sewage influx/total flow≤60%, 1.4≤ATP
When concentration/MLSS concentration ＜ 2.2,60%≤anoxic pond（3）Sewage influx/total flow≤80%, ATP concentration/MLSS concentration
When >=2.2,80%≤anoxic pond（3）Sewage influx/total flow≤100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651030.7A CN108585205B (en) | 2018-06-22 | 2018-06-22 | A/O sewage treatment device and sewage treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651030.7A CN108585205B (en) | 2018-06-22 | 2018-06-22 | A/O sewage treatment device and sewage treatment process |
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| Publication Number | Publication Date |
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| CN108585205A true CN108585205A (en) | 2018-09-28 |
| CN108585205B CN108585205B (en) | 2023-06-16 |
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| CN208603831U (en) * | 2018-06-22 | 2019-03-15 | 江苏艾特克环境工程设计研究院有限公司 | A kind of A/O sewage-treatment plant |
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2018
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| CN1772655A (en) * | 2005-09-27 | 2006-05-17 | 中国矿业大学 | High efficiency nitrification process of biological sewage treatment |
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