CN206872498U - Sewage treatment drug dosing system and sewage disposal system - Google Patents
Sewage treatment drug dosing system and sewage disposal system Download PDFInfo
- Publication number
- CN206872498U CN206872498U CN201720168805.6U CN201720168805U CN206872498U CN 206872498 U CN206872498 U CN 206872498U CN 201720168805 U CN201720168805 U CN 201720168805U CN 206872498 U CN206872498 U CN 206872498U
- Authority
- CN
- China
- Prior art keywords
- water quality
- water
- water inlet
- sewage treatment
- treatment drug
- 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.)
- Active
Links
Landscapes
- Water Treatment By Sorption (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses sewage treatment drug dosing system and sewage disposal system, water inlet end detector, the water side detector for detecting delivery port water quality, the control device for calculating dispensing parameter according to water inlet water quality and delivery port water quality and the administration device for being offerd medicine according to dispensing parameter that dosing system includes being used to detect water inlet water quality, water inlet end detector, water side detector and administration device are connected with control device.Water inlet water quality, water side detector detection delivery port water quality are detected by water inlet end detector, control device calculates dispensing parameter in real time according to the water quality of water inlet；The water quality index setting value and delivery port water quality defined simultaneously according to relevant criterion corrects dispensing parameter in real time；Realize the sewage treatment drug based on feedforward and feedback complex and add control, be swift in response with control process, dosage adjusts the advantages of accurate, can reach and ensure to save medicament while delivery port water quality, avoids the effect of unnecessary medicament pollution environment.
Description
Technical field
It the utility model is related to sewage treatment area, more particularly to sewage treatment drug dosing system and sewage disposal system
System.
Background technology
Contain many nitrogen phosphorus substances in municipal sewage, if these materials are discharged into natural water, water body can be caused rich
Nutrient laden.Therefore, to improve quality of water environment, the degree of body eutrophication, China are reduced《Urban wastewater treatment firm pollutant
Discharge standard》One-level emission standard A among (GB18918-2002) requires that water outlet total phosphorus is necessarily less than 0.5mg/L.It is existing at present
Some technology of phosphorus removal from wastewater mainly have two kinds of biological phosphate-eliminating and chemical dephosphorization, due to A2/O techniques biological denitrificaion and biological phosphate-eliminating it
Between exist carbon source competition etc. contradiction, if a certain sewage treatment plant stresses denitrogenation processing, it is difficult to meet to depend biological phosphate-eliminating alone
The requirement of water water quality.To ensure that water outlet total phosphorus meets one-level emission standard A, sewage treatment plant is generally again additionally by adding chemistry
The mode of medicament further improves total phosphorus removal ability.
For chemical dephosphorization technique, mainly there are preposition dephosphorization, synchronous dephosphorization and rearmounted dephosphorization.Preposition dephosphorization can reduce
Biological treatment structures load, the fluctuating change of balanced load, but the increase of total sludge yield can be caused, influence it is denitrifying enter
OK；Synchronous dephosphorization can make full use of Dephosphorization reagent by sludge reflux, by adding metal salt medicament sludge can be avoided swollen
It is swollen, but sludge yield can be increased, when nitrate sludge and excess sludge mix, recovery phosphate is more difficult, in addition
Phosphorus can discharge again in sludge under anaerobic state；Investment is larger needed for rearmounted dephosphorization process, but the precipitation of nitrate and biology
Processing procedure is separated, and can be independent of each other, and adding of agent can be controlled by the change of phosphorus load, caused phosphoric acid
Salt sludge can be discharged individually, and can be used.
Traditional dephosphorization dispensing has artificial add to be added with automatic control system, and manually adding chemical feeding quantity can not accurately control
System, typically in order to ensure that standard water discharge can increase medicament throwing amount, so easily cause the waste of chemical agent, increase operation into
This.Automatically control to add and use rear feedback control system mostly at present, only according to the effluent quality in monitoring dosing dephosphorization pond to throwing
Dose is adjusted, therefore has larger hysteresis characteristic, when influent load fluctuation is larger, it is impossible to ensure water outlet water well
Matter is stable.Therefore, there is an urgent need to develop a kind of Dephosphorization reagent based on feedforward and feedback to add composite control apparatus.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model be to provide sewage treatment drug dosing system and
Sewage disposal system, it can solve existing sewage treatment drug dosing system and only dosage is carried out according to monitoring effluent quality
Regulation, has larger hysteresis characteristic, when influent load fluctuation is larger, it is impossible to the problem of ensureing effluent quality well.
The purpose of this utility model is realized using following technical scheme：
Sewage treatment drug dosing system, including for detecting the water inlet end detector of water inlet water quality, for detecting
The water side detector of mouth of a river water quality, the control device for calculating dispensing parameter according to water inlet water quality and delivery port water quality and
For the administration device offerd medicine according to dispensing parameter, the water inlet end detector, water side detector and administration device are and institute
State control device connection.
Preferably, the sewage treatment drug dosing system also includes being used for the flowmeter for detecting water inlet flow, described
Flowmeter is connected with the control device, and the control device is used for according to water inlet water quality, water inlet flow and water outlet saliva
Matter calculates dispensing parameter.
Preferably, the administration device includes frequency converter and the chemicals feed pump by the transducer drive.
Preferably, the control device includes data acquisition unit, computing unit and communication unit；The collecting unit is used
In from the water inlet end detector, water side detector obtain water quality parameter；The computing unit be used for according to water quality parameter and
Water quality preset value calculation dispensing parameter；The communication unit is used to transmit the dispensing parameter to the administration device.
Preferably, the sewage treatment drug dosing system also includes host computer or server, and the communication unit is also used
Communicated in the host computer or server.
Preferably, the control device is PLC control cabinet.
Preferably, the PLC control cabinet includes model S7-200 PLC.
Preferably, the water inlet end detector and water side detector are total phosphorus detector.
Sewage disposal system, including the sewage treatment drug dosing system described in any of the above-described.
Compared with prior art, the beneficial effects of the utility model are：Water inlet water quality is detected by water inlet end detector,
Water side detector detection delivery port water quality, control device calculate dispensing parameter in real time according to the water quality of water inlet；Root simultaneously
The water quality index setting value and delivery port water quality defined according to relevant criterion corrects the dispensing parameter in real time；Realize based on feedforward
Control system is added with the sewage treatment drug of feedback complex, is swift in response with control process, dosage regulation is accurate excellent
Point, it can reach and ensure to save medicament while delivery port water quality reaching standard, avoid the effect of unnecessary medicament pollution environment.
Brief description of the drawings
Fig. 1 is the structural representation of sewage treatment drug dosing system provided by the utility model.
110th, water inlet end detector；120th, water side detector；130th, control device；140th, administration device；150th, flow
Meter.
Embodiment
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail as follows.
Sewage treatment drug dosing system as described in Figure 1, including for detecting the water inlet end detector of water inlet water quality
110th, for detecting the water side detector 120 of delivery port water quality, being thrown for being calculated according to water inlet water quality and delivery port water quality
The control device 130 of medicine parameter and the administration device 140 for being offerd medicine according to dispensing parameter, water inlet end detector 110, water side
Detector 120 and administration device 140 are connected with control device 130.
Preferably, water inlet end detector 110 and water side detector 120 be total phosphorus detector with communication function or
Ammonia nitrogen detector.In the present embodiment so that water inlet end detector 110 and water side detector 120 are total phosphorus detector as an example.Always
Phosphorus detector can be the devices such as total phosphorus determination instrument, total phosphorus analyzer, sewage total phosphorus determination instrument, and its operation principle can be ammonium molybdate
AAS, micro computer photoelectron colorimetric detection principle etc., typically can be from directly buying on the market.
The present embodiment is using total phosphorus value as final control targe, by water inlet end detector 110 by the total phosphorus content of water inlet
Send to control device 130；Control device 130 calculates dispensing parameter in real time according to the total phosphorus content of water inlet；Basis simultaneously
The water outlet total phosphorus Indicator setpoint that relevant criterion defines and the actual total phosphorus value of the delivery port that water side detector 120 detects are real-time
Correct the dispensing parameter；Dispensing parameter is passed into administration device 140 again, administration device 140 is joined according to the dispensing afterwards
It is several that dosing is carried out to dephosphorization dosing pond.
Sewage treatment drug dosing system described in the utility model, water inlet saliva is detected by water inlet end detector 110
Matter, water side detector 120 detect delivery port water quality, and control device 130 calculates dispensing ginseng in real time according to the water quality of water inlet
Number；The water quality index setting value and delivery port water quality defined simultaneously according to relevant criterion corrects the dispensing parameter in real time；Realize
Sewage treatment drug based on feedforward and feedback complex adds control, is swift in response with control process, and dosage regulation is smart
The advantages of true, it can reach and ensure to save medicament while delivery port water quality reaching standard, avoid the effect of unnecessary medicament pollution environment.
Further, sewage treatment drug dosing system also includes being used for the flowmeter 150 for detecting water inlet flow, flowmeter
150 are connected with control device 130.The flow of inlet water that flowmeter 150 measures can reflect the payload of sewage disposal, Ke Yijin
One step is accurately offerd medicine parameter.Parameter of offeing medicine can be injection volume, quality etc..Typically, can when parameter of offeing medicine is drug flux
To be calculated by the way that formula is calculated as below：
31 × the C of ÷ of Qt '=α × 162.5TP_in×Q (1)
E=CTP_out-CTP_set (2)
Qt=Qt '+e × KP+KI×∫e (3)
Wherein, Qt ' represents the added amount of chemical of dispensing parameter-first before amendment, and its unit is mg/h；Qt represents amendment
Dispensing parameter-second medicament dosage afterwards, its unit is also mg/h；α suggests passing through throwing to add coefficient, when actually adding
Experiment is added to determine；CTP_inFor dephosphorization dosing Chi Qianjinshuichu total phosphorus concentration, determined according to each factory's actual conditions, unit mg/L；
CTP_outFor dephosphorization dosing Chi Chushuichu total phosphorus concentration, determined according to each factory's actual conditions, unit mg/L；CTP_setTo set out
Water total phosphorus concentration, unit mg/L；Q is flow of inlet water, unit L/h；162.5 be ferric trichloride (FeCl3) molal weight, 31 are
The molal weight of phosphorus (P)；KPFor proportionality coefficient, KIFor integral coefficient, determined by actual tests；E be water outlet total phosphorus concentration value with
The error of total phosphorus setting value；∫ e are to do Integral Processing to e.
What formula (1) embodied is that control device 130 calculates in real time according to the total phosphorus content of water inlet and the flow of water inlet
Go out parameter of offeing medicine；What formula (2) embodied is that the total phosphorus content of delivery port and water quality setting value (are set in the present embodiment for total phosphorus
Value) deviation；What formula (3) embodied is the water outlet detected according to water outlet total phosphorus Indicator setpoint and water side detector 120
The deviation of cause for gossip border total phosphorus value is modified to dispensing parameter.
Preferably, administration device 140 includes frequency converter and the chemicals feed pump (not shown) by transducer drive.Using frequency converter
The chemicals feed pump of control has energy-conservation, adjusts the advantages of rapid.
Further, control device 130 includes data acquisition unit, computing unit and communication unit (not shown)；Collection is single
Member is used to obtain water quality parameter from water inlet end detector 110, water side detector 120；Computing unit is used for according to water quality parameter
With water quality preset value calculation dispensing parameter；Communication unit is used to transmit dispensing parameter to administration device 140.
As further improvement of the utility model, sewage treatment drug dosing system also includes host computer or server
(not shown), accordingly, communication unit are additionally operable to and host computer or server communication.Control device 130 by connecting line or with
Too net and host computer or server communicate, can various parameters data that remotely Monitoring Data collecting unit collects, also may be used
The added amount of chemical and corresponding dosing frequency obtained with remote computation, and can adding with remote control pharmaceutical quantities.
Preferably, control device 130 is PLC control cabinet, and PLC control cabinet can include model S7-200 PLC.
Sewage treatment drug dosing system described in the utility model is further implemented to be to apply this sewage disposal
The sewage treatment drug dosing system of adding of agent system.Water inlet, delivery port, dispensing pond in sewage treatment drug dosing system
Deng setting can be realized according to prior art, for example with the rearmounted dephosphorization of A2/O techniques, typically by chemical agent (such as trichlorine
Change iron) it is added in the mixing pit (dephosphorization dosing pond) after second pond, and sedimentation basin is set behind.
For those skilled in the art, technical scheme that can be as described above and design, make other each
Kind is corresponding to be changed and deforms, and all these change and deformed the guarantor that should all belong to the utility model claims
Within the scope of shield.
Claims (9)
1. sewage treatment drug dosing system, it is characterised in that：Including the water inlet end detector for detecting water inlet water quality, use
Water side detector in detection delivery port water quality, the control for calculating dispensing parameter according to water inlet water quality and delivery port water quality
Device processed and the administration device for being offerd medicine according to dispensing parameter, the water inlet end detector, water side detector and dispensing dress
Put and equal be connected with the control device.
2. sewage treatment drug dosing system as claimed in claim 1, it is characterised in that：Also include being used to detect water inlet stream
The flowmeter of amount, the flowmeter are connected with the control device, and the control device is used for according to water inlet water quality, water inlet
Flow and delivery port water quality calculate dispensing parameter.
3. sewage treatment drug dosing system as claimed in claim 1, it is characterised in that：The administration device includes frequency converter
With the chemicals feed pump by the transducer drive.
4. the sewage treatment drug dosing system as any one of claim 1-3, it is characterised in that：The control device
Including data acquisition unit, computing unit and communication unit；The collecting unit is used for from the water inlet end detector, water side
Detector obtains water quality parameter；The computing unit is used for according to water quality parameter and water quality preset value calculation dispensing parameter；It is described
Communication unit is used to transmit the dispensing parameter to the administration device.
5. sewage treatment drug dosing system as claimed in claim 4, it is characterised in that：Also include host computer or server,
The communication unit is additionally operable to and the host computer or server communication.
6. the sewage treatment drug dosing system as any one of claim 1-3, it is characterised in that：The control device
For PLC control cabinet.
7. sewage treatment drug dosing system as claimed in claim 6, it is characterised in that：The PLC control cabinet includes model
For S7-200 PLC.
8. the sewage treatment drug dosing system as any one of claim 1-3, it is characterised in that：The water inlet end inspection
It is total phosphorus detector to survey instrument and water side detector.
9. sewage disposal system, it is characterised in that：Added including the sewage treatment drug as any one of claim 1-8
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168805.6U CN206872498U (en) | 2017-02-23 | 2017-02-23 | Sewage treatment drug dosing system and sewage disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168805.6U CN206872498U (en) | 2017-02-23 | 2017-02-23 | Sewage treatment drug dosing system and sewage disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206872498U true CN206872498U (en) | 2018-01-12 |
Family
ID=61325346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720168805.6U Active CN206872498U (en) | 2017-02-23 | 2017-02-23 | Sewage treatment drug dosing system and sewage disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206872498U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726792A (en) * | 2018-04-28 | 2018-11-02 | 六安荣耀创新智能科技有限公司 | A kind of trade effluent dephosphorization device |
| CN108892266A (en) * | 2018-06-21 | 2018-11-27 | 合肥鸿昇自动化科技有限公司 | Sewage treatment control system |
| CN108946901A (en) * | 2018-08-31 | 2018-12-07 | 浦华控股有限公司 | The automatic regulating system of Dephosphorization reagent dosage in a kind of sewage treatment |
| CN110937643A (en) * | 2019-11-26 | 2020-03-31 | 广东莞绿环保工程有限公司 | System for intelligently controlling dosage in heavy metal-containing wastewater treatment |
| CN111422930A (en) * | 2020-04-08 | 2020-07-17 | 青岛道斯康环保科技有限公司 | Intelligent chemical agent adding control system and control method |
| CN112723669A (en) * | 2020-12-18 | 2021-04-30 | 逸文环境发展有限公司 | Sewage intelligent detection processing system based on municipal construction |
| CN112777709A (en) * | 2020-12-22 | 2021-05-11 | 广州市净水有限公司 | Control method and control system for precise dosing and phosphorus removal |
| CN113354051A (en) * | 2021-04-27 | 2021-09-07 | 华能国际电力股份有限公司营口电厂 | Automatic dosing control method and system for wet desulphurization wastewater treatment |
-
2017
- 2017-02-23 CN CN201720168805.6U patent/CN206872498U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726792A (en) * | 2018-04-28 | 2018-11-02 | 六安荣耀创新智能科技有限公司 | A kind of trade effluent dephosphorization device |
| CN108892266A (en) * | 2018-06-21 | 2018-11-27 | 合肥鸿昇自动化科技有限公司 | Sewage treatment control system |
| CN108946901A (en) * | 2018-08-31 | 2018-12-07 | 浦华控股有限公司 | The automatic regulating system of Dephosphorization reagent dosage in a kind of sewage treatment |
| CN110937643A (en) * | 2019-11-26 | 2020-03-31 | 广东莞绿环保工程有限公司 | System for intelligently controlling dosage in heavy metal-containing wastewater treatment |
| CN111422930A (en) * | 2020-04-08 | 2020-07-17 | 青岛道斯康环保科技有限公司 | Intelligent chemical agent adding control system and control method |
| CN111422930B (en) * | 2020-04-08 | 2023-03-14 | 青岛道斯康环保科技有限公司 | Intelligent chemical agent adding control system and control method |
| CN112723669A (en) * | 2020-12-18 | 2021-04-30 | 逸文环境发展有限公司 | Sewage intelligent detection processing system based on municipal construction |
| CN112777709A (en) * | 2020-12-22 | 2021-05-11 | 广州市净水有限公司 | Control method and control system for precise dosing and phosphorus removal |
| CN113354051A (en) * | 2021-04-27 | 2021-09-07 | 华能国际电力股份有限公司营口电厂 | Automatic dosing control method and system for wet desulphurization wastewater treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206872498U (en) | Sewage treatment drug dosing system and sewage disposal system | |
| CN110862188B (en) | Chemical phosphorus removal accurate dosing system and control method | |
| CN101659462B (en) | Automatic dosing control system of coagulant and operation method | |
| CN107601632A (en) | A kind of coagulation Automatic Dosing control method and system | |
| CN105439285B (en) | A kind of regulation method of sewage treatment | |
| CN114275876B (en) | Accurate and intelligent carbon source adding control system and method | |
| CN102464426A (en) | Intelligent adding control method of chemical phosphorus removal agent for municipal wastewater plant and device thereof | |
| CN106745614A (en) | A kind of intelligent feedwater emergency treatment device | |
| CN211035399U (en) | Automatic feedback and regulation device for composite carbon source adding amount of AAO process of municipal sewage plant | |
| CN211999002U (en) | Automatic dosing control system for breakpoint chlorine, deamination and denitrification | |
| CN104355477A (en) | Chemical phosphorus removal automatic control device of sewage treatment plant and control method thereof | |
| CN110182952A (en) | A kind of compounded carbons dosage automatic feedback and regulating device for municipal sewage plant AAO technique | |
| CN203128230U (en) | Automatic dosing device for water treatment | |
| CN103864209A (en) | Intelligent precise dosing system for denitrification deep-bed filter carbon source | |
| CN204417281U (en) | A kind of sewage disposal is met an urgent need preposition chemical dephosphorization Automatic Dosing control device | |
| CN207596676U (en) | A kind of automatic medicament feeding system | |
| CN201495122U (en) | Coagulator automatic feeding control system | |
| CN209039133U (en) | The automatic regulating system of Dephosphorization reagent dosage in a kind of sewage treatment | |
| CN207780588U (en) | A kind of reconstituted tobacoo processing waste water treatment of pharmaceutical products addition control system | |
| CN204097287U (en) | Sewage work's chemical dephosphorization automatic control device | |
| CN207645874U (en) | A kind of coagulation automatic dosing control system | |
| CN202632061U (en) | Automatic reagent adding device for neutralizing treatment of acid-base waste water of heat-engine plant | |
| CN212334752U (en) | Control device for accurately adding phosphorus removal agent in multistage A/O process | |
| CN102838178B (en) | Automatic medicine adding system | |
| CN111847617A (en) | Dephosphorization adds medicine intelligence control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |