CN109231438A - A kind of saprobia toxicity on-line monitoring early warning system - Google Patents
A kind of saprobia toxicity on-line monitoring early warning system Download PDFInfo
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- CN109231438A CN109231438A CN201811317933.8A CN201811317933A CN109231438A CN 109231438 A CN109231438 A CN 109231438A CN 201811317933 A CN201811317933 A CN 201811317933A CN 109231438 A CN109231438 A CN 109231438A
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- aeration
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- dissolved oxygen
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
- C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
-
- 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
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- 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
-
- 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
- C02F2209/40—Liquid flow rate
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- 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
Abstract
The present invention relates to sewage treatment operational monitoring fields, and in particular to a kind of saprobia toxicity on-line monitoring early warning system, a kind of saprobia toxicity on-line monitoring prior-warning device system includes aeration and biological reaction system and blank reaction system；The aeration and biological reaction system includes aeration and biological reactor I, and aeration and biological reactor I is used by the concatenated overall flow plug flow reactor form of multiple aerating activated sludge reaction chambers, while blank reaction system is arranged.It is analyzed by the changing rule of mixed liquor dissolved oxygen in monitoring aeration and biological reactor I, and with the comparison of blank reaction system DO, determines influence of the sewage to microbial activity of activated sludge, thus into the quick early warning of factory's saprobia toxicity.In order to eliminate the influence of other factors, using type of alarm twice, guarantee that bio-toxicity determines the accuracy of early warning.
Description
Technical field
The present invention relates to sewage treatment operational monitoring fields, and in particular to a kind of saprobia toxicity on-line monitoring early warning system
System.
Background technique
In the process of running, the active sludge microorganism in biological treatment will receive into factory's sewage for sewage treatment plant
The influence of poisonous and harmful substance causes microbial activity reduction or dead, prevents sewage plant biological treatment system from normal
Operation, or even it is in the presence of that biological treatment system is paralysed.Therefore, it is necessary to into the fast slowdown monitoring of factory's sewage toxicity progress and in advance
It is alert, so that sewage plant takes urgent measure when occurring toxic adverse condition suddenly, ensure that sewage disposal system is not hit.
The monitoring method of saprobia toxicity has toxicity test of fishes, algae toxicity test, photobacteria toxicity test, micro-
A variety of methods for toxicity monitoring such as biology breathing (activated sludge Wadi sheep), wherein activated sludge respiratory rate test pass through
The rate of change of dissolved oxygen is measured, measurement is simple direct, is most suitable for for sewage treatment plant's monitoring sewage to the micro- life of activated sludge
The bio-toxicity of object.But Wadi sheep measurement is a kind of toxicity test that interruption carries out, and can not achieve online and continuous prison
It surveys, quick early warning can not be played the role of.
Currently with the saprobia toxicity on-line monitoring technique of microbial respiratory inhibition.Patent of invention (application number
CN201210499187.5, publication number-CN102944658B) disclose a kind of saprobia poison based on system dissolved oxygen concentration
Property analysis method, it is raw that patent of invention (application number CN201210499312.2 publication number CN102980983B) discloses a kind of sewage
Object toxicity monitors analyzer and monitoring system on-line, is all made of and sewage and aeration reaction periodically is added to main bioreactor,
The acquisition of DO sensor obtains the system DO indicatrix in periodic regularity variation in reactor.It is logical that acquisition obtains DO characteristic
It crosses customized sludge activity inhibiting rate formula and carries out calculating analysis, showed according to the variation of system DO and entered with normal sewage
The trend feature of Shi Butong, to identify and assess the bio-toxicity degree of sewage.But there are problems to be, each cycle is added quantitative
Sewage, and sewage plant influent quality be it is changed at any time, will affect DO acquired data values；On the other hand between the technology also belongs to
It has a rest operation, operating procedure is more, and cannot really realize continuous uninterrupted monitoring and warning.Patent of invention (application number
CN201610963761.6, a number CN106526114A openly (is announced)) one kind is disclosed based on immobilization aerobic microbiological system
Saprobia toxicity assay, with patent of invention (application number CN201210499312.2 publication number CN102980983B) phase
Seemingly, it is a difference in that and has changed activated sludge into biomembrane, using the microorganism for growing biomembrane on semi-soft biologic packing material
Immobilization way, cyclical intermission injection sewage are reacted；The acquisition of DO sensor obtains rule in the DO period and becomes in reactor
Change.The invention is a kind of to be carried out using biomembrane as test sludge, first to aeration and oxygenation for sewage and then be re-introduced into reactor
The multi-step period intermittent duty mode of reaction operates more complicated.Moreover, the microorganism specific activity sludge of biomembrane form is micro-
Biology is strong to the resistivity of toxicant.Patent of invention (CN201310340605.0, publication number CN103592334B) provides
A kind of monitoring method based on batch-type biological toxicity tests early warning system.Early warning system of the invention is reacted using batch-type
The principle of device, including injection mixes, contact stirring, aeration aerating, reaction monitoring, empties and cleans totally five stages.It is filled in aeration
Oxygen, the stage of reaction complete the measurement and calculating of activated sludge respiratory rate.In emptying wash phase, sequencing batch reactor will be emptied
Mixed liquor in reactor, and cleaned using clear water, it avoids the potential toxicant of batch from monitoring next batch and produces
It is raw to influence.The technical operation is complicated, since interval carries out, can not achieve uninterrupted monitoring.
Summary of the invention
In order to overcome the defect and deficiency of existing online biological toxicity tests technology, reach quick, uninterrupted, accurate real-time
The purpose of on-line monitoring, constructing one can reflect sewage toxicity to the quick monitoring and warning of the true inhibition of sewage plant activated sludge
Apparatus system.So that when saprobia toxic events occur, quick early warning takes measures as early as possible, to avoid with bio-toxicity
Sewage enter the biological treatment system of sewage plant, ensure the bioactivity of activated sludge.
A kind of saprobia toxicity of the present invention monitors prior-warning device system, including bio-toxicity reaction monitoring on-line
System and PLC control system；The bio-toxicity reaction monitoring system includes that aeration and biological reaction system and blank are anti-
Answer system；
The aeration and biological reaction system includes aeration and biological reactor I, is equipped in the aeration and biological reactor I
Partition, partition are equipped with water hole, and aeration and biological reactor I is separated at least three tandem reaction room by the partition；The exposure
Gas bioreactor I front lower portion is equipped with sewage water inlet pipe and activated sludge enters mud pipe, and aeration and biological reactor I upper rear end is set
There is overflow launder；Micro porous aeration head and dissolved oxygen meter sensor are equipped in each reaction chamber, micro porous aeration head passes through pipeline
It is connected to air compressor machine I, dissolved oxygen meter sensor is connect with dissolved oxygen on-line determination instrument I；
The blank reaction system includes aeration reactor II, and the aeration reactor II front lower portion is equipped with dirt
Water water inlet pipe, aeration reactor II upper rear end are equipped with overflow launder；Micro porous aeration head and dissolved oxygen are equipped in aeration reactor II
Analyzer sensor, micro porous aeration head are connected to by pipeline with air compressor machine II, and dissolved oxygen meter sensor and dissolved oxygen are online
Analyzer II electrical connection；
Dissolved oxygen on-line determination instrument I is electrically connected with PLC control system respectively with dissolved oxygen on-line determination instrument II.
Deflector is arranged in dissolved oxygen meter sensor inclined downward of the present invention.
Aeration and biological reaction system of the present invention further includes medicine system, and the medicine system includes going here and there with first
The medicine storage tank that connection reaction chamber is connected to by dosing pipe, dosing pipe are equipped with metering pump, and metering pump is electrically connected with PLC control system
It connects.
Aeration reactor II of the present invention is identical as first tandem reaction building volume.
When carrying out on-line monitoring early warning using above system, the specific steps are that:
(1) sewage water inlet pipe of blank reaction system is opened, sewage enters aeration reactor II, and overflow discharge is beaten
It opens air compressor machine II adjustment charge flow rate to be aerated it, guarantees that the usual concentration value of DO of blank reaction system exists
1-1.5mg/L；
(2) sewage water inlet pipe of aeration and biological reactor I and activated sludge enters mud pipe are opened simultaneously with step (1) and are adjusted
The flow-rate ratio of good sewage and activated sludge, sewage and activated sludge flow successively through tandem reaction room；When each reaction chamber mixed liquor reaches
To when running liquid level, mixed liquor is discharged from the overflow of end reaction room, opens air compressor machine I adjustment charge flow rate and is aerated to it,
Guarantee the usual concentration value of DO of aeration and biological reactor I in 1-1.5mg/L；
(3) PLC control system, dissolved oxygen on-line determination instrument I and dissolved oxygen on-line determination instrument II are opened, according to step
(1) and under the conditions of the continuum micromeehanics of (2), continuous aeration it is carried out continuously DO measurement, DO automatic data collection real-time transmission to PLC is controlled
System processed carries out analysis identification and decides whether to alarm, alarms for the first time if reaching DO concentration alarming value.
This method is further comprising the steps of:
(4) simultaneously, PLC control system automatically turns on metering pump and adds sodium acetate into second reaction chamber for alarm for the first time
DO < 0.5mg/L into reaction chamber, then DO automatic data collection real-time transmission to PLC control system, carries out analysis identification and determines
It is fixed whether to alarm, it alarms for second if reaching DO concentration alarming value.
The flow-rate ratio of sewage and activated sludge in step (2) are as follows: 0.2-0.4:1.
Blank reactor and concatenated each reaction chamber hydraulic detention time HRT are in 3-5min.
In the present invention, aeration and biological reactor I simulates sewage plant aerating activated sludge bioreactor, micro- in activated sludge
Under bioactivity normal condition (sewage no biotoxicity), it is aerated the dissolved oxygen (DO) being transferred in water and is utilized by aerobic microbiological
And constantly consume (microbiological oxidation degradation of contaminant BOD5, ammonia nitrogen etc.), when aeration aerating amount and microbial consumption oxygen amount rate
It is identical, DO in mixed liquor can be made to be maintained at one relatively fixed concentration (or DO changes in an a small range).When sewage has
When having bio-toxicity, active sludge microorganism activity is suppressed and reduces even death, will be greatly reduced very to the consumption of oxygen
To DO is no longer consumed, under conditions of continuous aeration aerating, the DO of mixed liquor can continue to increase even up to be saturated.Therefore, lead to
The eustasy rule of DO in aeration bioreactor I mixed liquor is crossed to determine whether microbial activity is suppressed, to sentence
Whether disconnected sewage out has bio-toxicity.
Aeration and biological reactor I is activated sludge aeration tank form, the activated sludge used not reflux cycle in this system,
But the activated sludge of sewage plant biological treatment is utilized, (concentration after sewage plant biological treatment system activated sludge is concentrated
Sludge concentration is in 12000mg/L or so afterwards) aeration and biological reactor I directly is squeezed into pump, maintain biological toxicity test device
With the consistency of sewage plant biological treatment system activity sludge, it can directly reflect that saprobia toxicity is to production in this way
The influence of system.The direct overflow discharge system of active sludge intermixture after reaction, it is dirty that no setting is required in biological toxicity tests system
Mud precipitating and separation facility, more convenient operation.
In the present invention, aeration reactor II is using identical with aeration and biological reaction unit continuum micromeehanics, continuous aeration
Continuous stream mode.Aeration reactor II only into sewage (control valve and flowmeter is arranged in water inlet pipe), does not add activated sludge.Its
Middle air compressor machine can also be shared with aeration and biological reactor I.
(dilution is made for mixed diluting effect of the mixed liquor to water inlet when in order to avoid being thoroughly mixed biological reaction pool using one
At the decrease of saprobia toxicity).Aeration and biological reactor I of the present invention uses the concatenated overall flow of multiple reaction chambers
Plug-flow mode forms, and each reaction chamber is respectively provided with bottom micro porous aeration head, and using identical aeration quantity, and it is online to install dissolved oxygen
Analyzer I the real time measure DO.Setting operates normally DO value range and alarming value.It alarms when DO is more than preset value.
The tandem reaction room of composition aeration and biological reactor I can be used 3-5 and (form one one below with 5 reaction chambers
For the reaction unit of body).Each reaction chamber (hydraulic detention time HRT is in 3min or so) plane is square, size is identical,
Hole is opened up on partition between reaction chamber to be connected.Successively gravity stream flows through five and reacts for sewage and active sludge intermixture
Room, sewage and activated sludge enter first tandem reaction room from aeration and biological reactor I front lower portion first, mix through aeration
After reaction, mixed liquor enters second tandem reaction room from partition top water hole, from the lower partition after being aerated hybrid reaction
Hole flows into third tandem reaction room, enters the 4th tandem reaction room from top after being aerated hybrid reaction, mixed through being aerated
It closes and enters the 5th tandem reaction room from lower part after reacting, final mixed liquor is discharged from top overflow.In order to avoid aeration bubbles
Water conservancy diversion is arranged in dissolved oxygen meter sensor side inclined downward in influence to DO dissolved oxygen meter sensor monitoring data
Plate, prevent in bubble uphill process with sensor contacts.Each reaction chamber continuum micromeehanics water outlet, continuous aeration, it is continuous in real time
Carry out DO measurement.DO automatic data collection real-time transmission carries out analysis identification and decides whether to alarm to PLC control module.
Reach 40% or first tandem reaction of the blank reaction system DO value under this aeration quantity with reaction chamber DO
3 times of the usual concentration value of room DO are DO concentration alarming value.Monitoring device system automatically analyzes alarm, can be dirty into factory with preliminary judgement
Aquatic toxicity enhancing, needs to take urgent counter-measure.
When just bringing into operation, the present invention adjusts the DO that charge flow rate guarantees aeration and biological reactor I (aeration reactor II)
Detailed process of the usual concentration value in 1-1.5mg/L are as follows: sewage and activated sludge enter aeration and biological reactor I simultaneously in proportion
(sewage enters aeration reactor II) sets different aeration quantity, continuously acquires each reaction chamber (aeration under each aeration quantity for 24 hours
Reactor II) in mixed liquor DO concentration (automatically recording DO value every 30min), by DO concentration statistics summarize and be made into curve, unite
It counts the DO of each reaction chamber (aeration reactor II) under different aeration quantity and calculates average value, count lower 5 of each aeration quantity instead
Answer the variation rule curve of room (aeration reactor II) DO.Determine that the DO of aeration and biological reactor I (aeration reactor II) is flat
An aeration quantity of the normal concentration value in 1-1.5mg/L range, aeration flow as normal operation.
In order to improve the accuracy of bio-toxicity early warning, two alarm levels are arranged in the present invention.Reaction chamber DO is increased may
Cause there are two reason, one may be that sewage has bio-toxicity, it is suppressed that active sludge microorganism activity, microbial consumption
Oxygen amount decline, so that DO be made to increase；Another possibility is that, micro- life lower (not having bio-toxicity) into factory's sewage pollution substance concentration
Object consumption oxygen amount also declines, and increases DO.(1) when reaction chamber mixed liquor DO is more than preset alarm value, progress first time alarm.
(2) while alarming first time, monitoring system adds certain density sodium acetate from trend 1-2 reaction chamber to supplement and improve
BOD (sodium acetate is easily by microorganism utilization) in water is drawn if reaction chamber DO declines rapidly by influent quality concentration is lower
It rises, if reaction chamber DO decline is unobvious or even is still increasing, proves that saprobia toxicity causes to inhibit to microbial activity
Or damage, it carries out second and alarms.Therefore, alarming for the first time while adding sodium acetate can further confirm that sewage has biology poison
Property, improve early warning accuracy.Sodium acetate concentration is 10-12g/L in the medicine storage tank.
A kind of saprobia toxicity of the present invention monitors early warning system on-line, and aeration and biological reactor I is used by more
A concatenated overall flow plug flow reactor form of aerating activated sludge reaction chamber, while blank reaction system is set.
By the changing rule of mixed liquor dissolved oxygen (DO) in monitoring aeration and biological reactor I, and with blank reaction system DO's
Analysis is compared, determines influence of the sewage to microbial activity of activated sludge, thus into the quick early warning of factory's saprobia toxicity.In order to
The influence for eliminating other factors, using type of alarm twice, while DO raising reaches preset alarm value and is alarmed for the first time,
Using adding sodium acetate (easily biodegradable organic matter) and monitor the verification method of DO variation tendency, according to DO changing rule into
The secondary alarm of row guarantees that bio-toxicity determines the accuracy of early warning.
Detailed description of the invention
Fig. 1 is that a kind of saprobia toxicity of the present invention monitors early warning system structural schematic diagram on-line；
In figure: 1- aeration and biological reactor I (is divided into 5 reaction chamber series connection, water hole is arranged on partition, from intaking to going out
Water number is respectively 1-1,1-2,1-3,1-4,1-5), 2- sewage water inlet pipe, 3- activated sludge enters mud pipe, 4- dissolved oxygen (DO) survey
Determine instrument sensor, 5- dissolved oxygen (DO) on-line determination instrument I, 6- micro porous aeration head, 7- air compressor machine I, 8- valve, 9- flowmeter, 10-
Deflector, 11- overflow launder, 12- medicine storage tank, 13- metering pump, 14- aeration reactor II, 15- air compressor machine II, 16-PLC control system
System, 17, partition, 18- dissolved oxygen (DO) on-line determination instrument II, 19- water hole.
Specific embodiment
Embodiment 1
A kind of saprobia toxicity monitors prior-warning device system on-line, the system include bio-toxicity reaction monitoring system and
PLC control system；The bio-toxicity reaction monitoring system includes aeration and biological reaction system and blank reaction system；
The aeration and biological reaction system includes aeration and biological reactor I, is equipped in the aeration and biological reactor I
Partition, partition are equipped with water hole, and aeration and biological reactor I is separated at least three tandem reaction room by the partition；The exposure
Gas bioreactor I front lower portion is equipped with sewage water inlet pipe and activated sludge enters mud pipe, and aeration and biological reactor I upper rear end is set
There is overflow launder；Micro porous aeration head and dissolved oxygen meter sensor are equipped in each reaction chamber, micro porous aeration head passes through pipeline
It is connected to air compressor machine I, dissolved oxygen meter sensor is connect with dissolved oxygen on-line determination instrument I；
The blank reaction system includes aeration reactor II, and the aeration reactor II front lower portion is equipped with dirt
Water water inlet pipe, aeration reactor II upper rear end are equipped with overflow launder；Micro porous aeration head and dissolved oxygen are equipped in aeration reactor II
Analyzer sensor, micro porous aeration head are connected to by pipeline with air compressor machine II, and dissolved oxygen meter sensor and dissolved oxygen are online
Analyzer II electrical connection；
Dissolved oxygen on-line determination instrument I is electrically connected with PLC control system respectively with dissolved oxygen on-line determination instrument II.
Embodiment 2
A kind of saprobia toxicity monitors prior-warning device system on-line, the system include bio-toxicity reaction monitoring system and
PLC control system；The bio-toxicity reaction monitoring system includes aeration and biological reaction system and blank reaction system；
The aeration and biological reaction system includes aeration and biological reactor I, is equipped in the aeration and biological reactor I
Partition, partition are equipped with water hole, and aeration and biological reactor I is separated at least three tandem reaction room by the partition；The exposure
Gas bioreactor I front lower portion is equipped with sewage water inlet pipe and activated sludge enters mud pipe, and aeration and biological reactor I upper rear end is set
There is overflow launder；Micro porous aeration head and dissolved oxygen meter sensor are equipped in each reaction chamber, micro porous aeration head passes through pipeline
It is connected to air compressor machine I, dissolved oxygen meter sensor is connect with dissolved oxygen on-line determination instrument I；
The blank reaction system includes aeration reactor II, and the aeration reactor II front lower portion is equipped with dirt
Water water inlet pipe, aeration reactor II upper rear end are equipped with overflow launder；Micro porous aeration head and dissolved oxygen are equipped in aeration reactor II
Analyzer sensor, micro porous aeration head are connected to by pipeline with air compressor machine II, and dissolved oxygen meter sensor and dissolved oxygen are online
Analyzer II electrical connection；
Dissolved oxygen on-line determination instrument I is electrically connected with PLC control system respectively with dissolved oxygen on-line determination instrument II.
Deflector is arranged in the dissolved oxygen meter sensor inclined downward.
Embodiment 3
A kind of saprobia toxicity monitors prior-warning device system on-line, the system include bio-toxicity reaction monitoring system and
PLC control system；The bio-toxicity reaction monitoring system includes aeration and biological reaction system and blank reaction system；
The aeration and biological reaction system includes aeration and biological reactor I1, is set in the aeration and biological reactor I1
There is partition 17, partition 17 is equipped with water hole 19, and aeration and biological reactor I1 is separated at least three series connection instead by the partition 17
Answer room；The aeration and biological reactor I1 front lower portion is equipped with sewage water inlet pipe 2 and activated sludge enters mud pipe 3, and aeration and biological is anti-
Device I1 upper rear end is answered to be equipped with overflow launder 11；Micro porous aeration head 6 and dissolved oxygen meter sensor are equipped in each reaction chamber
4, micro porous aeration head 6 is connected to by pipeline with air compressor machine I7, and dissolved oxygen meter sensor 4 and dissolved oxygen on-line determination instrument I5 connect
It connects；
The blank reaction system includes aeration reactor II14, and the aeration reactor II14 front lower portion is set
There is sewage water inlet pipe 2, aeration reactor II14 upper rear end is equipped with overflow launder 11；Micro-pore aeration is equipped in aeration reactor II14
First 16 and dissolved oxygen meter sensor 4, micro porous aeration head 6 is connected to by pipeline with air compressor machine II15, dissolved oxygen meter biography
Sensor 4 is electrically connected with dissolved oxygen on-line determination instrument II18；
Dissolved oxygen on-line determination instrument I1 is electrically connected with PLC control system 1 respectively with dissolved oxygen on-line determination instrument II1.
Deflector 10 is arranged in 4 inclined downward of dissolved oxygen meter sensor.
The aeration and biological reaction system further includes medicine system, and the medicine system includes and first tandem reaction
The medicine storage tank 12 that room is connected to by dosing pipe, dosing pipe are equipped with metering pump 13,16 electricity of metering pump 13 and PLC control system
Connection.
The aeration reactor II14 is identical as first tandem reaction building volume.
Claims (5)
1. a kind of saprobia toxicity monitors prior-warning device system on-line, which is characterized in that the system includes bio-toxicity reaction
Monitoring system and PLC control system；The bio-toxicity reaction monitoring system includes aeration and biological reaction system and blank pair
Compare reaction system；
The aeration and biological reaction system includes aeration and biological reactor I (1), is set in the aeration and biological reactor I (1)
Have partition (17), partition (17) be equipped with water hole (19), the partition (17) by aeration and biological reactor I (1) be separated into
Few 3 tandem reaction rooms；Aeration and biological reactor I (1) front lower portion is equipped with sewage water inlet pipe (2) and activated sludge into mud
It manages (3), aeration and biological reactor I (1) upper rear end is equipped with overflow launder (11)；Micro porous aeration head is equipped in each reaction chamber
(6) it is connected to by pipeline with air compressor machine I (7) with dissolved oxygen meter sensor (4), micro porous aeration head (6), dissolved oxygen meter
Sensor (4) is connect with dissolved oxygen on-line determination instrument I (5)；
The blank reaction system includes (14) aeration reactor II, and aeration reactor II (14) front lower portion is set
Have sewage water inlet pipe (2), aeration reactor II (14) upper rear end is equipped with overflow launder (11)；It is equipped in aeration reactor II (14)
Micro porous aeration head (16) and dissolved oxygen meter sensor (4), micro porous aeration head (6) are connected by pipeline and air compressor machine II (15)
Logical, dissolved oxygen meter sensor (4) is electrically connected with dissolved oxygen on-line determination instrument II (18)；
Dissolved oxygen on-line determination instrument I (1) is electrically connected with PLC control system (1) respectively with dissolved oxygen on-line determination instrument II (1).
2. a kind of saprobia toxicity according to claim 1 monitors prior-warning device system on-line, which is characterized in that described
Dissolved oxygen meter sensor (4) inclined downward be arranged deflector (10).
3. a kind of saprobia toxicity according to claim 1 monitors prior-warning device system on-line, which is characterized in that described
Aeration and biological reaction system further includes medicine system, and the medicine system includes passing through chemical feed pipe with first tandem reaction room
The medicine storage tank (12) of road connection, dosing pipe are equipped with metering pump (13), and metering pump (13) is electrically connected with PLC control system (16)
It connects.
4. a kind of saprobia toxicity according to claim 1 monitors prior-warning device system on-line, which is characterized in that described
Aeration reactor II (14) is identical as first tandem reaction building volume.
5. a kind of online quick monitoring warning device of saprobia toxicity according to claim 3, which is characterized in that described
Medicine storage tank in be sodium acetate solution.
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| CN201811317933.8A CN109231438A (en) | 2018-11-07 | 2018-11-07 | A kind of saprobia toxicity on-line monitoring early warning system |
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| CN201811317933.8A CN109231438A (en) | 2018-11-07 | 2018-11-07 | A kind of saprobia toxicity on-line monitoring early warning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157695A (en) * | 2020-03-09 | 2020-05-15 | 深圳市中涛环保工程技术有限公司 | Detection device and detection method for water toxicity |
| CN116969552A (en) * | 2023-09-21 | 2023-10-31 | 贵州勘设生态环境科技有限公司 | Integrated sewage treatment control and regulation system and device thereof |
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