CN111635078A - Sewage treatment system of nitrogen phosphorus content differentiation - Google Patents
Sewage treatment system of nitrogen phosphorus content differentiation Download PDFInfo
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- CN111635078A CN111635078A CN202010558210.8A CN202010558210A CN111635078A CN 111635078 A CN111635078 A CN 111635078A CN 202010558210 A CN202010558210 A CN 202010558210A CN 111635078 A CN111635078 A CN 111635078A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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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
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F3/308—Biological phosphorus removal
Abstract
The invention discloses a sewage treatment system with differentiated nitrogen and phosphorus contents, which comprises: pretreatment tank body, first processing pond, second processing pond, sedimentation tank, first aeration machine, second aeration machine, control flap, first processing pond pass through the pipeline and be connected with pretreatment tank body, second processing pond pass through the pipeline and be connected with first processing pond, sedimentation tank respectively, first aeration machine pass through the trachea with the work end setting in the inside of first processing pond, second aeration machine pass through the trachea with the work end setting in the inside of second processing pond, sedimentation tank bottom be provided with the sludge discharge pipe, and be provided with sludge recycling pipe on the sludge discharge pipe and be connected with first processing pond, control flap set up on the output trachea of first aeration machine, pretreatment tank body inside be provided with online nitrogen content detector and online phosphorus content detector. The invention has the advantages of simple structure, easy operation, good use effect and the like.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to a sewage treatment system with differentiated nitrogen and phosphorus contents.
Background
The sewage treatment refers to a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage; sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
The biological treatment refers to a method for treating sewage by utilizing the metabolism of organisms, namely bacteria, molds or protozoa, and is called biological treatment, and the biological treatment can be divided into aerobic treatment and anaerobic treatment; the anaerobic treatment can be divided into anoxic treatment and anaerobic treatment aiming at different nitrogen and phosphorus contents, and the main difference between the anoxic treatment and the anaerobic treatment is the difference of aeration quantity.
In sewage treatment, different equipment is often selected for treatment according to different nitrogen and phosphorus contents in the water body due to different sewage water bodies, so that the cost of the equipment is increased; in addition, even in anoxic treatment, the aeration rate should be different for a fixed aeration rate and nitrogen and phosphorus content, so that the effect of the device in sewage treatment cannot be expected.
Disclosure of Invention
The invention aims to provide a sewage treatment system with differentiated nitrogen and phosphorus contents so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment system with differentiated nitrogen and phosphorus content comprises: pretreatment tank body, first treatment tank, second treatment tank, sedimentation tank, first aeration machine, second aeration machine, control flap, pretreatment tank internal sewage after being equipped with the preliminary treatment, first treatment tank pass through the pipeline and be connected with pretreatment tank body, second treatment tank pass through the pipeline and be connected with first treatment tank, sedimentation tank respectively, first aeration machine pass through the trachea with the work end setting in the inside of first treatment tank, second aeration machine pass through the trachea with the work end setting in the inside of second treatment tank, sedimentation tank bottom be provided with sludge discharge pipe, and be provided with sludge recycling pipe on the sludge discharge pipe and be connected with first treatment tank, control flap set up on the delivery pipe of first aeration machine.
Further, control valve pass through signal line and controller electric connection, the internal portion of preliminary treatment pond be provided with online nitrogen content detector and online phosphorus content detector, online nitrogen content detector and online phosphorus content detector can detect the nitrogen phosphorus content of preliminary treatment pond internal sewage respectively to produce corresponding electronic signal respectively, the controller receive the electronic signal of detector, and convert and compare the electronic signal who obtains, thereby produce the control signal to the control valve operation.
Furthermore, the first treatment tank in be provided with online oxygen content detector, online oxygen content detector detectable first treatment tank in the oxygen content of sewage to produce corresponding electronic signal, online oxygen content detector passes through signal line and controller electric connection.
Compared with the prior art, the invention has the beneficial effects that: the sewage treatment system with the differentiated nitrogen and phosphorus contents can perform differentiated treatment on sewage with different nitrogen and phosphorus contents, so that the sewage treatment effect is improved; specifically, the air supply quantity of the first aerator can be controlled by operating a control valve aiming at sewage with different nitrogen and phosphorus contents entering the pretreatment tank body, and when the sewage is mainly used for removing phosphorus, the valve is closed, and the first treatment tank is in an anaerobic state; when denitrification is mainly used, the valve is opened, and the first treatment tank is in an anoxic state; the control valve is controlled by a controller, the operation information of the controller is from an online nitrogen content detector and an online phosphorus content detector which are arranged in the pretreatment tank body, the two detectors respectively monitor the nitrogen and phosphorus content of the sewage in the pretreatment tank body, and the controller converts and compares the received electronic signals to obtain control signals; in addition, the online oxygen content detector arranged in the first treatment tank can monitor the oxygen content in the first treatment tank, generate electrons and send the electrons to the controller, and the controller compares the electronic signals with a threshold value, so that the control valve is further controlled, and the feedback regulation effect is achieved.
In the sewage treatment, aiming at the difference of nitrogen and phosphorus contents in the sewage water body, the first treatment tank can be respectively used as an anoxic treatment tank or an anaerobic treatment tank by controlling the air supply quantity of the first aerator, and different sewage is treated by one set of equipment, so that the cost of the equipment is saved; to the anoxic treatment, the aeration rate can carry out effectual feedback, and when nitrogen phosphorus content compares, adopt its aeration rate of difference, let equipment have more the pertinence, this just makes equipment when handling sewage, and its treatment effect is improved.
The invention has the advantages of simple structure, easy operation, good use effect and the like.
Drawings
FIG. 1 is a schematic view of the flow structure of the present invention;
in the figure: 1-pretreating a pool body; 2-a first treatment tank; 3-a second treatment tank; 4-a sedimentation tank; 5-a first aerator; 6-a second aerator; 7-control valve; 8-a controller; 9-an online nitrogen content detector; 10-an online phosphorus content detector; 11-online oxygen content detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a sewage treatment system with differentiated nitrogen and phosphorus contents, comprising: pretreatment tank body 1, first treatment tank 2, second treatment tank 3, sedimentation tank 4, first aeration machine 5, second aeration machine 6, control flap 7, pretreatment tank body 1 in be equipped with the sewage after the preliminary treatment, first treatment tank 2 pass through the pipeline and be connected with pretreatment tank body 1, second treatment tank 3 pass through the pipeline and be connected with first treatment tank 2, sedimentation tank 4 respectively, first aeration machine 5 pass through the trachea with the work end setting in the inside of first treatment tank 2, second aeration machine 6 pass through the trachea with the work end setting in the inside of second treatment tank 3, sedimentation tank 4 bottom be provided with the sludge discharge pipe, and be provided with sludge recycling pipe on the sludge discharge pipe and be connected with first treatment tank 2, control flap 7 set up on the delivery pipe of first aeration machine 5.
Further, control flap 7 pass through signal line and 8 electric connection of controller, preliminary treatment cell body 1 inside be provided with online nitrogen content detector 9 and online phosphorus content detector 10, online nitrogen content detector 9 and online phosphorus content detector 10 can detect the nitrogen phosphorus content of preliminary treatment cell body 1 internal sewage respectively to produce corresponding electronic signal respectively, controller 8 receive the electronic signal of detector, and convert and compare the electronic signal who obtains, thereby produce the control signal to control flap 7 operation.
Further, an online oxygen content detector 11 is arranged in the first treatment tank 2, the online oxygen content detector 11 can detect the oxygen content of the sewage in the first treatment tank 2 and generate a corresponding electronic signal, and the online oxygen content detector 11 is electrically connected with the controller 8 through a signal line.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a sewage treatment system of nitrogen phosphorus content differentiation which characterized in that includes: the device comprises a pretreatment tank body (1), a first treatment tank (2), a second treatment tank (3), a sedimentation tank (4), a first aerator (5), a second aerator (6) and a control valve (7), wherein the pretreated sewage is filled in the pretreatment tank body (1), the first treatment tank (2) is connected with the pretreatment tank body (1) through a pipeline, the second treatment tank (3) is respectively connected with the first treatment tank (2) and the sedimentation tank (4) through pipelines, the first aerator (5) arranges a working end in the first treatment tank (2) through an air pipe, the second aerator (6) arranges the working end in the second treatment tank (3) through an air pipe, a sludge discharge pipe is arranged at the bottom of the sedimentation tank (4), and a sludge recovery pipe is arranged on the sludge discharge pipe and connected with the first treatment tank (2), the control valve (7) is arranged on an output air pipe of the first aerator (5).
2. The nitrogen-phosphorus content differential sewage treatment system according to claim 1, wherein the control valve (7) is electrically connected with the controller (8) through a signal line, an online nitrogen content detector (9) and an online phosphorus content detector (10) are arranged inside the pretreatment tank body (1), the online nitrogen content detector (9) and the online phosphorus content detector (10) can respectively detect nitrogen and phosphorus contents of sewage in the pretreatment tank body (1) and respectively generate corresponding electronic signals, and the controller (8) receives the electronic signals of the detectors and converts and compares the acquired electronic signals to generate a control signal for operating the control valve (7).
3. The nitrogen-phosphorus content differential sewage treatment system according to claim 1, wherein an online oxygen content detector (11) is disposed in the first treatment tank (2), the online oxygen content detector (11) can detect the oxygen content of the sewage in the first treatment tank (2) and generate a corresponding electronic signal, and the online oxygen content detector (11) is electrically connected with the controller (8) through a signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558210.8A CN111635078A (en) | 2020-06-18 | 2020-06-18 | Sewage treatment system of nitrogen phosphorus content differentiation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558210.8A CN111635078A (en) | 2020-06-18 | 2020-06-18 | Sewage treatment system of nitrogen phosphorus content differentiation |
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| CN111635078A true CN111635078A (en) | 2020-09-08 |
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| CN202010558210.8A Pending CN111635078A (en) | 2020-06-18 | 2020-06-18 | Sewage treatment system of nitrogen phosphorus content differentiation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041535A (en) * | 2007-02-16 | 2007-09-26 | 无锡市政设计研究院有限公司 | Highly effective dephosphorizing denitrification combined type sewage treatment equipment |
| CN102295346A (en) * | 2011-06-14 | 2011-12-28 | 江苏龙腾工程设计有限公司 | Adjustable biochemical tank and adjustable AAO process for water treatment |
| CN105776544A (en) * | 2016-05-06 | 2016-07-20 | 云南大学 | ANSAOAO (Anaerobic-Nitrifying-Selective-Anoxic-Oxic-Anoxic-Oxic) continuous-flow two-sludge denitrification deep denitrifying and phosphorus removing device and process based on on-line control |
| CN106219755A (en) * | 2016-10-08 | 2016-12-14 | 济南大学 | A kind of device utilizing three grades of biofilter synchronous denitrification dephosphorizings and processing method thereof |
| CN108017152A (en) * | 2018-01-09 | 2018-05-11 | 苏州市清泽环境技术有限公司 | The biological denitrificaion combination pond of controllable Anoxic/Aerobic and technique |
| CN110054293A (en) * | 2019-05-07 | 2019-07-26 | 大连安能杰科技有限公司 | A kind of sewage treatment biochemical process based on NADH control aeration quantity |
-
2020
- 2020-06-18 CN CN202010558210.8A patent/CN111635078A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041535A (en) * | 2007-02-16 | 2007-09-26 | 无锡市政设计研究院有限公司 | Highly effective dephosphorizing denitrification combined type sewage treatment equipment |
| CN102295346A (en) * | 2011-06-14 | 2011-12-28 | 江苏龙腾工程设计有限公司 | Adjustable biochemical tank and adjustable AAO process for water treatment |
| CN105776544A (en) * | 2016-05-06 | 2016-07-20 | 云南大学 | ANSAOAO (Anaerobic-Nitrifying-Selective-Anoxic-Oxic-Anoxic-Oxic) continuous-flow two-sludge denitrification deep denitrifying and phosphorus removing device and process based on on-line control |
| CN106219755A (en) * | 2016-10-08 | 2016-12-14 | 济南大学 | A kind of device utilizing three grades of biofilter synchronous denitrification dephosphorizings and processing method thereof |
| CN108017152A (en) * | 2018-01-09 | 2018-05-11 | 苏州市清泽环境技术有限公司 | The biological denitrificaion combination pond of controllable Anoxic/Aerobic and technique |
| CN110054293A (en) * | 2019-05-07 | 2019-07-26 | 大连安能杰科技有限公司 | A kind of sewage treatment biochemical process based on NADH control aeration quantity |
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Application publication date: 20200908 |