CN107315076A - A kind of online oxicity analysis system and its assay method - Google Patents
A kind of online oxicity analysis system and its assay method Download PDFInfo
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Abstract
The present invention relates to a kind of online oxicity analysis system and its assay method, including active microorganism generator, mixing module and respiration rate measurement instrument, active microorganism generator is used to cultivate the microbiological materials for measuring, and it is connected to mixing module and the microbiological materials for measurement are conveyed to it；Mixing module is used to introduce the microbiological materials for being used to measure from active microorganism generator and introduces sewage formation aggregate sample, and it is connected to respiration rate measurement instrument and mixes sample to its conveying；Respiration rate measurement instrument is used to introduce the aggregate sample from mixing module and detects its toxicity.Actual sewage treatment plant can be applied to, if a poisonous substance is leaked in sewage, the respiratory rate reduced suddenly will be reflected.If respiratory rate is rapidly reduced, less than the percentage of a determination, alarm will be triggered and perform corresponding action.
Description
Technical field
The present invention relates to sewage treatment area, and in particular to a kind of online oxicity analysis system and its assay method.
Background technology
If without online toxicity detection system, when the waste water containing toxicant into sewage treatment plant touches activity
Sludge simultaneously can be just found when damaging.The worst situation is that sludge has to re-replace, and waste water will be unable in the meantime
Effectively handled, this result is sufficiently expensive.When in the sewage containing virose composition reach treatment plant before just
It is detected, so that it may avoid activated sludge from wrecking, the function of this system is just " early warning " system.
Respiratory rate is also referred to as OUR, is the oxygen of Institute of Micro-biology's consumption in the unit interval in unit volume mixed liquor
Amount.According to the form of measured oxygen, the measuring method of respiratory rate can be divided into two major classes：One kind is to measure in the liquid phase
The concentration of dissolved oxygen, referred to as liquid phase method；A kind of is the volume or concentration for measuring in the gas phase gaseous oxygen, referred to as vapor phase method.At present
Conventional is liquid phase measuring method, and this method can be divided into two kinds again according to the flow regime of liquid：One kind is interval mensuration, i.e. quilt
It is relatively-stationary to survey liquid；Another is continuous mode method, i.e., fluid to be measured is flowing, continuous renewal.Liquid phase measuring method
Typically there is a small respiratory chamber, be connected with the aeration tank of activated Sludge System, it is dense with dissolved oxygen as the absorption place of oxygen
The measuring apparatus of degree constitutes the measuring system of complete set.
But sensing equipment of the prior art and method can not realize online, continuous and real-time monitoring, often
Although monitoring result after generation exception, lose inevitable.
The content of the invention
For above prior art problem, it is an object of the invention to provide a kind of online oxicity analysis system and its measure
Method, automaticity is high, simple to operate, operation interface is friendly directly perceived, can be applied to actual sewage treatment plant, if one
Poisonous substance is leaked in sewage, and the respiratory rate reduced suddenly will be reflected.If respiratory rate is rapidly reduced, less than one
The percentage of individual determination, alarm will be triggered and perform corresponding action.Concrete technical scheme is as follows：
A kind of online oxicity analysis system, including active microorganism generator, mixing module and respiration rate measurement instrument,
Wherein, the active microorganism generator be used for cultivate for measure microbiological materials, its be connected to mixing module and to its
Convey the microbiological materials for measurement；The mixing module is used to introduce is used for what is measured from active microorganism generator
Microbiological materials simultaneously introduce sewage formation aggregate sample, and it is connected to respiration rate measurement instrument and mixes sample to its conveying；It is described to exhale
Inhaling rate determination instrument is used to introduce the aggregate sample from mixing module and detects its toxicity.
Further, in addition to an intelligent sampler, it is connected to the mixing module and introduces the pipeline of sewage and be used for
Leave and take the too high sewage of toxicity；And/or, the mixing module includes an aeration tank, and it is used to accommodate the microorganism for measuring
Material and sewage simultaneously continue aeration to reach the respiratory rate of maximum.
Further, the online respiration rate measurement instrument includes respiratory chamber, import, outlet, measuring pump, dissolved oxygen electricity
Pole/dissolved oxygen meter, the first and second three-way magnetic valves, the import is connected to measuring pump, and the measuring pump is connected respectively
To the first and second three-way magnetic valves, the first three-way magnetic valve is connected to the upper end of respiratory chamber, and the second three-way magnetic valve is connected to
The lower end of respiratory chamber, the first and second three-way magnetic valves are connected to outlet；Or, the online respiration rate measurement instrument includes
Respiratory chamber, import, outlet, measuring pump, dissolved oxygen electrode/dissolved oxygen meter, the first and second electric three-way valves, the import
Measuring pump is connected to, the measuring pump is respectively connecting to the first and second electric three-way valves, and the first electric three-way valve, which is connected to, exhales
The upper end of suction-chamber, the second electric three-way valve is connected to the lower end of respiratory chamber, and the first and second electric three-way valves are connected to outlet；
Or, the online respiration rate measurement instrument includes respiratory chamber, import, outlet, measuring pump, dissolved oxygen electrode/DO determination
Instrument, the first and second threeway pneumatic operated valves, the import is connected to measuring pump, and the measuring pump is respectively connecting to the first and second three
Logical pneumatic operated valve, the first threeway pneumatic operated valve is connected to the upper end of respiratory chamber, and the second threeway pneumatic operated valve is connected to the lower end of respiratory chamber, the
One and second threeway pneumatic operated valve be connected to outlet.
Further, the dissolved oxygen electrode is arranged at import and/or the exit of respiratory chamber.
Further, the probe of the dissolved oxygen electrode or dissolved oxygen meter is close proximity to respiratory chamber.
Further, the dissolved oxygen meter includes sampling computer, dissolved oxygen analytic instrument and probe, the probe
For being detected that it is connected to dissolved oxygen analytic instrument close to respiratory chamber, the dissolved oxygen analytic instrument is connected to sampling computer
For calculating respiratory rate and/or other data.
Further, in addition to mixing module microbiological materials inlet pipeline, and/or, mixing module wastewater inlet pipeline,
And/or, mixing module aggregate sample outlet conduit, and/or, overflow pipe, and/or, respiration rate measurement instrument outlet conduit, its
In, the active microorganism generator is connected to mixing module, the sewage by mixing module microbiological materials inlet pipeline
Mixing module is entered by mixing module wastewater inlet pipeline, the mixing module is connected by mixing module aggregate sample outlet conduit
Respiration rate measurement instrument is connected to, the overflow pipe is the overflow pipe of mixing module/aeration tank, the respiration rate measurement instrument
Outlet conduit is the outlet conduit of respiration rate measurement instrument.
Further, it is a kind of online oxicity analysis system based on activated sludge respiratory rate, the respiratory rate
Analyzer is online respiration rate measurement instrument, and the microbiological materials for being used to measure are microorganism sludge；
And/or,
Also include reflux line and/or waste solution channel, the overflow pipe and/or respiration rate measurement instrument outlet conduit connect
The waste water after measuring in reflux line and/or waste solution channel, overflow pipe and/or respiration rate measurement instrument outlet conduit is connected to work as
Water conservancy diversion, which enters reflux line and flows back to active microorganism generator, when testing result is without toxicity provides nutrient solution, if toxicity is super
Water conservancy diversion enters waste solution channel when crossing predetermined value；
And/or,
Also include waste liquid pool, the waste solution channel is connected to waste liquid pool；
And/or,
Also include sewage conduct, its one end is connected to sewage treatment plant inflow mouthful end and/or water outlet end, other end connection
To mixing module or it is connected directly to aeration tank；
And/or,
Also include alarm module, it is connected to respiration rate measurement instrument, and for being alarmed at once when detecting toxicity；
And/or,
The respiration rate measurement instrument also includes single dissolved oxygen sensor and breathing module, and single dissolved oxygen sensor is used
The dissolved oxygen concentration of sample in measurement breathing module, real-time data collection simultaneously calculates respiratory rate with toxicity inhibition rate in real time；
And/or,
The respiratory chamber is pipe-like；
And/or,
The active microorganism generator uses activated sludge process generator, or A/O technique generators, or A2/O techniques
Generator, or SBR technique generators, or oxidation ditch process generator；
And/or,
The intelligent sampler is connected to respiratory rate, and the toxicity being used in respiratory rate instrument detects sewage reaches and faced
Detected water is taken into a certain amount of indwelling as record water sample during dividing value and sample time is demarcated；
And/or,
The respiration rate measurement instrument also includes toxicity computing module.
The assay method of above-mentioned online oxicity analysis system, comprises the following steps：
(1) one preset value one of consumption in dissolved oxygen concentration unit interval when presetting Microbial Communities in Activated Sludge eupnea,
Respiratory rate is preset value two；
(2) toxicity sewage enters system, suppresses the activity of microorganism, causes respiratory rate to reduce；
(3) dissolved oxygen depletion is reduced, and consumption preset value three in the unit interval, respiratory rate is preset value four；
(4) sludge respiratory rate is monitored；
(5) when sludge respiratory rate is reduced to preset value, system makes early warning, it is to avoid sewage is flowed at sewage plant biochemistry
Reason system.
Further, the unit interval is set to 1min, and the preset value one is set to 3mg, and the preset value two is set
3mg/min is set to, the preset value three is set to 0.5mg, and the preset value four is set to 0.5mg/min；
And/or,
In step (1), it is dirty in real time that the activated sludge directly gathers sewage treatment plant using active microorganism culture systems
Mud is cultivated, successively input, with same or like pH value, temperature, water sample and sludge；
And/or,
In step (4), using the dissolving of sample in single dissolved oxygen sensor measurement breathing module of respiration rate measurement instrument
Oxygen concentration, directly being handled using the real time data of collection for on-line continuous, calculates respiratory rate with toxicity inhibition rate in real time；
And/or,
In step (1), using active microorganism generator, according to in-situ processing processing simulation microorganism growth process, make
Microorganism concn is similar to population height, to be tested with impact and impact degree of the noxious material to existing handling process；
And/or,
In step (5), respiration rate measurement instrument is continuously detected to being detected water sample, when respiratory rate is quick
Ground is reduced, less than one default percentage, and alarm will be triggered and perform corresponding action；
And/or,
Mixing module constantly automatically fills the microorganism sludge from active microorganism generator, while introducing sewage
And continue aeration to reach the respiratory rate of maximum；The continuous mixing sample that extracted from mixing module of analyzer is sent to respiratory rate survey
Toxicity is detected in cover half block.
Compared with currently available technology, the system is on-line continuous collection municipal sewage water inlet, is lived with test
Property sludge and additional easily biological-degradable carbon source mixing, automatically determine the respiratory rate of mixed liquor, exhaled according to respiratory rate or ratio
The change of speed is inhaled to recognize and evaluate toxicity and inhibition level of the water inlet to activated sludge.It can not only online, high frequency pair
Water inlet toxicity is monitored in real time, suppression of the true reflection water inlet to our factory's activated sludge, and automaticity is high, operation letter
Single, operation interface is friendly directly perceived, can be applied to actual sewage treatment plant.Industrial Computer Control inside analyzer is all
Operation and function, if a poisonous substance is leaked in sewage, the respiratory rate reduced suddenly will be reflected.If breathing speed
Rate is rapidly reduced, less than the percentage of a determination, and alarm will be triggered and perform corresponding action.
The system difference maximum with similar external import product is that the system measures for continous way, continous way breathing
Rate determination method uses intake pump, and a sample is taken at regular intervals like that rather than batch (-type) respiration rate measurement method.Activity
Microbe generator, is, according to scene (mainly sewage plant) handling process simulation microorganism growth process, to make microorganism concn
It is similar to population height, to be tested with impact and impact degree of the noxious material to existing handling process.(2) because activity is micro-
Biomass generator provides continual active bacterium source for respiratory rate instrument, and when toxic material has impact to detection sample
Wait, automated system will ensure that active bacterium source will be handled individually, not interfere with follow-up detection process.(3) online respiratory rate
Instrument is that continuously, if a poisonous substance is leaked in sewage, the respiratory rate reduced suddenly will be anti-to being detected water sample
Mirror and.If respiratory rate is rapidly reduced, less than the percentage of a determination, alarm will be triggered and perform corresponding dynamic
Make.
Brief description of the drawings
Fig. 1 is respiratory rate changing trend diagram
Fig. 2 is activated sludge process structure chart
Fig. 3 is A/O process structure figures
Fig. 4 is A2/ O process structure figures
Fig. 5 is SBR process structure figures
Fig. 6 is oxidation ditch process structure chart
Fig. 7 is online respiration rate measurement instrument sketch
Fig. 8 is DO determination instrument probe schematic diagram
Fig. 9 is dissolved oxygen concentration changing trend diagram
Figure 10 is intelligent sampler design drawing
Figure 11 is online oxicity analysis system overall diagram
Embodiment
Below according to accompanying drawing, the present invention will be described in detail, and it is a kind of preferred reality in numerous embodiments of the present invention
Apply example.
Reference picture 1, consumption 3mg in the dissolved oxygen concentration unit interval (1min) during Microbial Communities in Activated Sludge eupnea,
So respiratory rate is 3mg/min.Suppress the activity of microorganism, respiratory rate reduction, dissolving after toxicity sewage enters system
Oxygen consumption is reduced, consumption 0.5mg in the unit interval, so respiratory rate now is 0.5mg/min.When sludge respiratory rate drop
It is low to a certain extent when, system makes early warning, it is to avoid sewage flow into sewage plant biochemical treatment system irreversible is caused to sludge
Injury.
In reference picture 2, activated sludge process, the operational factor of activated sludge process is as follows：
1) BOD mud load rates (NS)：0.2-0.4kgBOD/(kgMLSS·d)
2) BOD volumetric loadings (NV)：0.3-0.8kgBOD/(m3·d)
3) mixed liquor concentration of suspension (MLSS)：1.5-2.0g/L
4) sludge age (ts)：2-4d
5) gas-water ratio：3-7
6) aeration time (t)：6-8h
7) reflux ratio：20-30%
8) sludge volume index (SVI)：60-120L/g
In reference picture 3, A/O techniques (anoxic-aerobic process), the operational factor of A/O techniques is as follows：
1) ammonia nitrogen removal frank 70%~80%
2) nitrification optimal pH is 8.0~8.4, and denitrification optimal pH is 6.5~7.5
3) raw sewage total nitrogen concentration TN ＜ 30mg/L
4) dissolved oxygen control requires that O sections are more than 1mg/L；A sections are less than 0.5mg/L
5) sludge concentration typically requires to be more than 3000mg/L
6) return sludge ratio：30~100%
7) sludge age should reach more than 15d
Reference picture 4, A2In/O techniques (anaerobic-anoxic-aerobic process), the technique is to organic removal rate and active
Sludge is essentially identical, is for general city domestic sewage operational factor：
1) BOD5 clearances are 85%-95%
2) sludge loading is generally 0.1-0.2kgBOD5/kgMLSSd
3) total residence time is 6-12h, wherein anaerobic zone 0.5-1.5h, anoxic zone 0.5-1h, aerobic zone 4-8h
4) MLSS is 3000-4000mg/L
5) return sludge ratio is 25-100%.
6) nitrogen removal rate is generally 60-80%
7) content of phosphorus is more than 2.5% in tp removal rate 50-75%, excess sludge
8) sludge age is generally 5-25d
In reference picture 5, SBR techniques, the design parameter of SBR activated sludge processes, it is necessary to consider treatment plant regional characteristic and
The appropriate determination of design condition (land area, maintenance management, water quality treatment index etc.).Design parameter for facilities design should
Values below is defined：
1) BOD sludge loadings (kg BOD/kg MLSSd)：0.03-0.4
2)MLSS(mg/L)：1500-5000
3) delivery ratio (1/m)：1/2-1/6
4) safe altitude ε (cm) (minimum depth more than activated sludge interface)：50 above by reference to Fig. 6, oxidation ditch process
In, the hydraulic detention time of oxidation ditch is long, and organic loading is low, and it substantially belongs to extended aeration system.General oxidation ditch process
Main design parameters are：
1) hydraulic detention time：10-40 hours
2) sludge age：Generally higher than 20 days
3) organic loading：0.05-0.15kgBOD5/ (kgMLSS.d)
4) volumetric loading：0.2-0.4kgBOD5/ (m3.d)
5) activated sludge concentration：2000-6000mg/l
6) mean flow rate in ditch：0.3-0.5m/s
Whether reference picture 7, online respiration rate measurement instrument, respiratory rate measuring method seals according to bioreactor, can
It is divided into closed and open.Closed measuring method places dissolved oxygen electricity respectively similar to the inlet and outlet in respiratory chamber
Pole, it is exactly respiratory rate to measure obtained dissolved oxygen difference divided by sludge retention time.Method after improvement is only molten using one
Oxygen electrode is solved, sludge is periodically reversed flowing by two three-way magnetic valves doors of control, realizes and measure the molten of import and export simultaneously
Solve oxygen concentration.So greatly reduce systematic error.
Two three-way magnetic valves replace power on/off, become a mandarin and go out stream using h as cyclomorphosis direction.Cycle h is needed according to molten
Solve the response time determination of oxygen probe, generally 60s or so.
Respiratory chamber is sealed, and respiratory chamber is designed into pipe-like, the mixability of new and old sewage is so just reduced, and subtract
Lack sludge settling, increase the accuracy of measurement.Need the flow velocity q, unit L/min of measurement mixed liquor；And breathing chamber body
Product V, unit L；
Reference picture 8, DO determination instrument probe, dissolved oxygen instrument is as far as possible long-term to support using the high-quality instrument of high accuracy
Continuous measurement, the probe of dissolved oxygen instrument close proximity to respiratory chamber to reduce error, rear end connection computer calculate respiratory rate and
Other data.In way, A-probe, B-dissolved oxygen analytic instrument, C-sampling computer.
Reference picture 9, during respiratory rate is calculated, because alternately dissolved oxygen concentration is imported and exported in measurement, surveys dissolved oxygen dense
Spending variation tendency is：The measurement of dissolved oxygen concentration can be completed once to import and export in the h times, h is measurement period.Extremely high value be into
Mouth dissolved oxygen concentration stationary value, extremely low value is outlet respiratory chamber mixed liquor dissolved oxygen concentration stationary value.Because calculation formula is more multiple
Miscellaneous, therefore not to repeat here, and the final respiratory rate formula that calculates is：
rk=(a (Ck+1+Ck-1)-(a+2/h)(Ck+2+Ck)/2-(a-2/h)(CK-2+Ck)/2)/2
Wherein α is q/V.If dissolved oxygen concentration change is little in system under test (SUT), it can be used and original continous way side
Method identical formula, i.e.,：
rk=α ((Ck+1+Ck-1)/2-Ck)
Reference picture 10, intelligent sampler is made up of probe tube, support, the bottle that keeps sample with internal distribution board, for breathing
Speedometer is used cooperatively, when the toxicity that respiratory rate instrument is detected in sewage reaches warning line, and intelligent sampler synchronously will be by
Detection water takes a certain amount of indwelling as record water sample, while sample time is demarcated, in case artificial detection.
Reference picture 11, active microorganism generator is a set of complicated microculture reaction storage facility, by water leg,
Anoxic pond, aeration tank constitute (different process construction is not quite similar) with second pond etc., ensure that microorganism is in most for a long time
Good state, and microorganism can continuously be provided to measure.Waste water after measurement can flow back to microorganism if without toxicity
Generator provides nutrient solution, and flowing into waste liquid pool if toxicity is too big waits further processing.
Mixing module constantly automatically fills the microorganism sludge from active microorganism generator, while introducing sewage
And continue aeration to reach the respiratory rate of maximum.The continuous mixing sample that extracted from mixing module of analyzer is sent to respiratory rate survey
Toxicity is detected in cover half block.The temperature of activated sludge, respiratory rate are relevant with its vitality in aeration tank, thus also embody
The size of toxic action.If respiratory rate is only relevant with sewage Poisoning mixture in process conditions, then respiratory rate
Reduction just can indicate that the influence of toxicant.The analyzer can measure display simultaneously：Dissolved oxygen concentration (preceding), dissolving
Oxygen concentration (rear), respiratory rate, toxicity inhibition rate %.
The same PLC controls in respiratory rate instrument of intelligent sampler, respiratory rate instrument detects toxicity and reaches critical value
When sample immediately.
The invention belongs to sewage technology for automatically treating field and disclose using microbial respiratory speed change realize sewage
Toxicity on-line monitoring system, including：Active microorganism culture systems, mixing module, respiration rate measurement, toxicity computing module
With intelligent sampling module.Active microorganism culture systems directly gather the real-time sludge of sewage treatment plant and cultivated, successively
Input keeps fresh state, with identical pH value, temperature, water sample and sludge.Respiration rate measurement module is using unique list
The dissolved oxygen concentration of sample, the performance between probe is avoided without using double dissolved oxygen probes in dissolved oxygen sensor measurement breathing module
Measurement error caused by difference.Respiration rate measurement module is capable of at the real time data directly using collection of on-line continuous
Reason, calculates respiratory rate with toxicity inhibition rate, without any residence time in real time.The present invention is placed in sewage treatment plant inflow mouthful
End, once detecting that toxicity alarms at once, it is to avoid impacted to sewage treatment plant's handling process.The present invention is without using examination
Agent, maintenance is small, can be achieved unattended.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as employ the inventive concept and technical scheme of the present invention progress various improvement, or it is not improved directly apply
In other occasions, within protection scope of the present invention.
Claims (10)
1. a kind of online oxicity analysis system, it is characterised in that including active microorganism generator, mixing module and breathing speed
Rate analyzer, wherein,
The active microorganism generator is used to cultivate the microbiological materials for measuring, and it is connected to mixing module and defeated to its
Send the microbiological materials for measurement；
The mixing module is used to introduce the microbiological materials for being used to measure from active microorganism generator and introduces sewage
Aggregate sample is formed, it is connected to respiration rate measurement instrument and mixes sample to its conveying；
The respiration rate measurement instrument is used to introduce the aggregate sample from mixing module and detects its toxicity.
2. online oxicity analysis system as claimed in claim 1, it is characterised in that
Also include an intelligent sampler, it is connected to the pipeline of the mixing module introducing sewage and too high for leaving and taking toxicity
Sewage；
And/or,
The mixing module includes an aeration tank, and it is used for the microbiological materials and sewage accommodated for measuring and continues aeration
To reach the respiratory rate of maximum.
3. the online oxicity analysis system as described in claim 1 and 2, it is characterised in that
The online respiration rate measurement instrument includes respiratory chamber, import, outlet, measuring pump, dissolved oxygen electrode/DO determination
Instrument, the first and second three-way magnetic valves, the import is connected to measuring pump, and the measuring pump is respectively connecting to the first and second three
Three-way electromagnetic valve, the first three-way magnetic valve is connected to the upper end of respiratory chamber, and the second three-way magnetic valve is connected to the lower end of respiratory chamber, the
One and second three-way magnetic valve be connected to outlet；
Or,
The online respiration rate measurement instrument includes respiratory chamber, import, outlet, measuring pump, dissolved oxygen electrode/DO determination
Instrument, the first and second electric three-way valves, the import is connected to measuring pump, and the measuring pump is respectively connecting to the first and second three
Logical motor-driven valve, the first electric three-way valve is connected to the upper end of respiratory chamber, and the second electric three-way valve is connected to the lower end of respiratory chamber, the
One and second electric three-way valve be connected to outlet；
Or,
The online respiration rate measurement instrument includes respiratory chamber, import, outlet, measuring pump, dissolved oxygen electrode/DO determination
Instrument, the first and second threeway pneumatic operated valves, the import is connected to measuring pump, and the measuring pump is respectively connecting to the first and second three
Logical pneumatic operated valve, the first threeway pneumatic operated valve is connected to the upper end of respiratory chamber, and the second threeway pneumatic operated valve is connected to the lower end of respiratory chamber, the
One and second threeway pneumatic operated valve be connected to outlet.
4. online oxicity analysis system as claimed in claim 3, it is characterised in that the dissolved oxygen electrode is arranged at respiratory chamber
Import and/or exit.
5. online oxicity analysis system as claimed in claim 3, it is characterised in that the dissolved oxygen electrode or dissolved oxygen are surveyed
The probe of instrument is determined close proximity to respiratory chamber.
6. the online oxicity analysis system as described in claim 3-5, it is characterised in that the dissolved oxygen meter includes sampling
Computer, dissolved oxygen analytic instrument and probe, the probe are used to be detected that it is connected to dissolved oxygen analysis close to respiratory chamber
Instrument, the dissolved oxygen analytic instrument, which is connected to sampling computer, to be used to calculate respiratory rate and/or other data.
7. the online oxicity analysis system as described in claim 3-6, it is characterised in that also including mixing module microbiological materials
Inlet pipeline, and/or, mixing module wastewater inlet pipeline, and/or, mixing module aggregate sample outlet conduit, and/or, overflow pipe
Road, and/or, respiration rate measurement instrument outlet conduit, wherein,
The active microorganism generator is connected to mixing module, the sewage by mixing module microbiological materials inlet pipeline
Mixing module is entered by mixing module wastewater inlet pipeline, the mixing module is connected by mixing module aggregate sample outlet conduit
Respiration rate measurement instrument is connected to, the overflow pipe is the overflow pipe of mixing module/aeration tank, the respiration rate measurement instrument
Outlet conduit is the outlet conduit of respiration rate measurement instrument.
8. online oxicity analysis system as claimed in claim 7, it is characterised in that it breathes speed to be a kind of based on activated sludge
The online oxicity analysis system of rate, the respiration rate measurement instrument is online respiration rate measurement instrument, described to be used for the micro- of measurement
Biological substance is microorganism sludge；
And/or,
Also include reflux line and/or waste solution channel, the overflow pipe and/or respiration rate measurement instrument outlet conduit are connected to
Waste water after being measured in reflux line and/or waste solution channel, overflow pipe and/or respiration rate measurement instrument outlet conduit is when detection
Water conservancy diversion, which enters reflux line and flows back to active microorganism generator, when as a result for without toxicity provides nutrient solution, if toxicity exceedes in advance
Water conservancy diversion enters waste solution channel during definite value；
And/or,
Also include waste liquid pool, the waste solution channel is connected to waste liquid pool；
And/or,
Also include sewage conduct, its one end is connected to sewage treatment plant inflow mouthful end and/or water outlet end, and the other end is connected to mixed
Matched moulds block is connected directly to aeration tank；
And/or,
Also include alarm module, it is connected to respiration rate measurement instrument, and for being alarmed at once when detecting toxicity；
And/or,
The respiration rate measurement instrument also includes single dissolved oxygen sensor and breathing module, and single dissolved oxygen sensor is used to survey
The dissolved oxygen concentration of sample in amount breathing module, real-time data collection simultaneously calculates respiratory rate with toxicity inhibition rate in real time；
And/or,
The respiratory chamber is pipe-like；
And/or,
The active microorganism generator uses activated sludge process generator, or A/O technique generators, or A2/O techniques to occur
Device, or SBR technique generators, or oxidation ditch process generator；
And/or,
The intelligent sampler is connected to respiratory rate, and reaches critical value for the toxicity in respiratory rate instrument detects sewage
When detected water taken to a certain amount of indwelling as record water sample and demarcate sample time；
And/or,
The respiration rate measurement instrument also includes toxicity computing module.
9. the assay method of online oxicity analysis system as described in claim 1-8, it is characterised in that comprise the following steps：
(1) one preset value one of consumption in the dissolved oxygen concentration unit interval, is breathed when presetting Microbial Communities in Activated Sludge eupnea
Speed is preset value two；
(2) toxicity sewage enters system, suppresses the activity of microorganism, causes respiratory rate to reduce；
(3) dissolved oxygen depletion is reduced, and consumption preset value three in the unit interval, respiratory rate is preset value four；
(4) sludge respiratory rate is monitored；
(5) when sludge respiratory rate is reduced to preset value, system makes early warning, it is to avoid sewage flows into sewage plant biochemical treatment system
System.
10. the assay method of online oxicity analysis system as claimed in claim 9, it is characterised in that the unit interval is set
For 1min, the preset value one is set to 3mg, and the preset value two is set to 3mg/min, and the preset value three is set to
0.5mg, the preset value four is set to 0.5mg/min；
And/or,
In step (1), the activated sludge directly gathers the real-time sludge of sewage treatment plant using active microorganism culture systems and entered
Row culture, successively input, with same or like pH value, temperature, water sample and sludge；
And/or,
In step (4), the dissolved oxygen using sample in single dissolved oxygen sensor measurement breathing module of respiration rate measurement instrument is dense
Degree, directly being handled using the real time data of collection for on-line continuous, calculates respiratory rate with toxicity inhibition rate in real time；
And/or,
In step (1), using active microorganism generator, according to in-situ processing processing simulation microorganism growth process, make micro- life
Thing concentration is similar to population height, to be tested with impact and impact degree of the noxious material to existing handling process；And/or,
In step (5), respiration rate measurement instrument is continuously detected to being detected water sample, when respiratory rate rapidly drops
Low, less than one default percentage, alarm will be triggered and perform corresponding action；
And/or,
Mixing module constantly automatically fills the microorganism sludge from active microorganism generator, while introducing sewage and holding
It is continuous to be aerated to reach the respiratory rate of maximum；The continuous mixing sample that extracted from mixing module of analyzer is sent to respiration rate measurement mould
Toxicity is detected in block.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426498A (en) * | 2019-08-08 | 2019-11-08 | 广州市净水有限公司 | A kind of saprobia methods for toxicity monitoring |
| 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 |
| WO2020217078A1 (en) * | 2019-04-25 | 2020-10-29 | Total Se | Method for measuring the activity of a culture of microalgae |
| CN113405605A (en) * | 2021-06-30 | 2021-09-17 | 厦门微控科技有限公司 | Ammonia water static sample retention analyzer and control method thereof |
-
2017
- 2017-08-03 CN CN201710655800.0A patent/CN107315076A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020217078A1 (en) * | 2019-04-25 | 2020-10-29 | Total Se | Method for measuring the activity of a culture of microalgae |
| CN114040963A (en) * | 2019-04-25 | 2022-02-11 | 道达尔能源欧洲公司 | Method for measuring microalgae culture activity |
| CN110426498A (en) * | 2019-08-08 | 2019-11-08 | 广州市净水有限公司 | A kind of saprobia methods for toxicity monitoring |
| 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 |
| CN113405605A (en) * | 2021-06-30 | 2021-09-17 | 厦门微控科技有限公司 | Ammonia water static sample retention analyzer and control method thereof |
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