CN105928822A - Online automatic BOD monitoring system and use method thereof - Google Patents
Online automatic BOD monitoring system and use method thereof Download PDFInfo
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- CN105928822A CN105928822A CN201610504153.9A CN201610504153A CN105928822A CN 105928822 A CN105928822 A CN 105928822A CN 201610504153 A CN201610504153 A CN 201610504153A CN 105928822 A CN105928822 A CN 105928822A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/02—Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder
- G01N7/04—Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder by absorption or adsorption alone
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Abstract
The invention discloses an online automatic BOD monitoring system. The online automatic BOD monitoring system comprises a nutritive salt and strain quantifying device, a quantitative mixing aerating device, a distributing device, a culturing device and a data collecting device which are sequentially connected. According to the online automatic BOD monitoring system, the processing steps are automatically realized, so that the working intensity of an experimenter is greatly reduced; the number of sample bottles meets the quantity requirement of testing in each of 7 days, and the replacement cycle of the sample bottles is one week, so that the maintenance amount is reduced; strains are stored in the environment of 4 DEG C and can be continuously used, so that the parallelity is increased, and meanwhile, the workload is reduced; and furthermore, the online detection time of the system is not influenced by other factors.
Description
Technical field
The present invention relates to water analysis technical field, be more particularly to a kind of on-line automatic prison of BOD
Examining system and using method thereof.
Background technology
BOD (Biochemical oxygen demand) can reflect sewage by the degree of Organic Pollution, institute in sewage
The most containing Organic substance, then consumption oxygen amount is the most, and BOD numerical value is the highest, and vice versa.Cause
This it be one of of paramount importance parameter in sewage quality index.Although measure BOD take longer,
Data update not in time, but BOD index is with comprehensive concentrated expression total amount of organic,
Simulation imitates the self-purification of water, is therefore difficult to replace by other indexs.
Pressure differential method surveys BOD principle: in closed system, the microorganism in testing sample is carried out
During aerobic biochemical reaction, in water body, microbes consumes in water body dissolved oxygen and releases CO2Gas
Body, passes through CO2Absorbent absorbs CO2, in making closed system, there is difference in force value, and this is poor
Be worth proportional with water body BOD, by detection closed system in before and after pressure difference value convert
BOD value.Current domestic BOD detecting instrument mostly be Laboratory Instruments, utilize pressure differential method to do
Laboratory Instruments also only some, accomplish online temporarily also not having, be primarily due to
During test b OD, the processing procedure of water sample is more complicated.Accordingly, it would be desirable to a kind of BOD of exploitation exists automatically
Line monitoring system.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is how online auto monitoring BOD, and provides one
Plant BOD online auto monitoring system and using method thereof.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of BOD (Biochemical oxygen demand)
Online auto monitoring system, this system includes: nutritive salt and strain proportioning device, quantitatively mixes
Aerator, distributor, culture apparatus, data acquisition unit；Said apparatus is sequentially connected
Connect.
Preferably, described nutritive salt and strain proportioning device, with underlying stirring nutritive salt and
Two storage bottles of strain, are saved under 4 DEG C of low temperature, and nutritive salt and strain pass through power part
Extraction, utilizes liquid metering device quantitative, then is pushed into appointment position by power part.
Preferably, described liquid metering device includes liquid level tube and liquid level detection device, pipeline
Centre is furnished with valve, by Vavle switching nutritive salt and strain can be oriented extraction or release；Described
Power part is peristaltic pump or plunger displacement pump.
Preferably, described quantitative mixed aeration device, equipped with liquid level detection device, with entering
Sample and air inlet, enter nutritive salt and strain hole, aspirating hole and the pump housing of bleeding.Can realize sample with
Nutritive salt and strain mix and the function of aeration aerating.
Preferably, described sample introduction and air inlet are positioned at described device lower end, are to lead to Vavle switching
The multiplex hole of road conversion purposes, is opened sample holes control valve passage, is extracted by the pump housing during sample introduction
Sample enters；Open sample introduction and air inlet control valve passage during aeration, make gas the most up
Fang Liudong, controls aeration rate by the extraction speed and time controlling the pump housing.
Described sample introduction and air inlet are positioned at described device lower end, are to use with Vavle switching Channel-shifted
The multiplex hole on way, opens sample holes control valve passage, extracts sample by power part during sample introduction
Enter；Open solarization air cap control valve passage during aeration, make gas flow toward top from below, logical
The extraction speed and the time that cross the control pump housing control aeration rate.
Preferably, described distributor is that the arrangement of multiple valve is connected with multiple passages, and single
Solely controlling the device of each passage, the told device left and right sides is the passage of multiple side-by-side valve arrangement,
During distribution sample, application valve body opening and closing order sample can be made to enter any valve passage in limit, left and right, institute
Tell device lower end to enter with quantitative mixed aeration device with an air inlet controlled by valve, upper end
Sample and air inlet connect.
Preferably, described culture apparatus is with pressure transducer, sample feeding pipe, check device
Sealing culture bottle, said apparatus is contained on bottle cap or on bottle；During bottle cap sealing, pressure
Sensor reads a bottle internal gas pressure in real time, and check device makes to occur without during sample introduction malleation, in maintaining bottle
Air pressure is steady；Inner plug of bottle cover is with the device of the alkali grain placing absorption CO2, and it is stubborn to work as bottle cap
Sealing function is played time tight.
Preferably, the pressure transducer of described data acquisition unit each culture bottle of Real-time Collection
Data, it is thus achieved that the force value of each time is also converted into BOD value by software and shows on a display screen
The device shown.
Present invention also offers the BOD online auto monitoring system described in use, to carry out BOD online
Automatically the method for monitoring, the method comprising the steps of:
Step one: auto injection process: valve 14 switches to water sample, starts pump 2 and extracts, by water
After sample is pumped into liquid level tube 2, close valve closing 14 and the pump housing by proportioning device is quantitatively rear；Cut
Changing when valve body sample introduction is distilled water is skip test, is that standard specimen is surveyed when switching valve sample introduction is standard specimen
Examination, other steps are consistent；
Step 2: reagent adding process: switching valve 1 and valve 2, utilizes pump 2 by nutritive salt and strain
After being driven in liquid level tube 1 quantitatively, switch valve 2, utilize pump 2 to be driven in liquid level tube 2；
Step 3: aeration mixed process: close all valve passages, starts pump 2 and outwards extracts air,
Switching valve 3 air pipe line is channel status simultaneously, does not stop air to reach in suction liquid level tube 2 to expose
Gas purpose, and can be by sample, nutritive salt and strain mix homogeneously；
Step 4: rationed process: after aeration terminates, closes valve closing 3 and pump 1, controls multichannel
The closing order of the valve of valve and connection bottle, starts pump 1 and starts air-blowing in liquid level tube 2, by sample
Product are pushed in target culture bottle, and the check device on culture bottle lid is possible to prevent bottle just occurring
Pressure, makes sample to enter smoothly；Sample-adding amount is strengthened by step one being repeated several times to step 4,
To reach the volume needed；
Step 5: homoisothermal cultivation process: device is in 20 DEG C of dark room conditions cultivation, cultivates
There is below Ping agitating device, carry out continuously stirred cultivation；
Step 6: detection process: detect pressure changing constantly, by computed in software module
Upload, screen shows BOD value.
Preferably, described pump is peristaltic pump or plunger displacement pump；Described valve is two-way valve, threeway
Valve, electromagnetic valve or three-way magnetic valve.
(3) beneficial effect
In prior art, BOD pre-treatment step is various, and pre-treatment step is accomplished by the present invention completely
Full-automatic realization, a large amount of working strengths reducing experimenters；Sample bottle quantity is every in enough 7 days
The quantity of it test, can change when changing sample bottle, decrease maintenance a Monday；Strain is deposited
It is stored in 4 DEG C of environment preservation, uses continuously, add collimation and decrease workload simultaneously；?
The detection time of wire system is not limited by other factors.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area
From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to these
Accompanying drawing obtains other accompanying drawing.
Fig. 1 is BOD online auto monitoring system overall structure schematic diagram of the present invention；
Fig. 2 is BOD online auto monitoring system overall flow schematic diagram of the present invention；
Fig. 3 is the process using BOD online auto monitoring system of the present invention to carry out BOD analysis
Schematic diagram.
Detailed description of the invention
With embodiment, embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention.
The present invention is BOD automatic on-line monitoring system, joins by controlling multiple valve bodies and the pump housing
Starting building to make, accomplish the full-automatic sample introduction of BOD sample, reagent adding mixes, and aeration is rationed etc.
A series of actions, finally squeezes into and cultivates detection in culture bottle, and by pressure transducer constantly
Reading pressure value conversion BOD value, reach the online purpose of BOD, the data of this system are accurate
Really, maintenance is little, simple to operate.
The present invention is further illustrated below by embodiment.In the present invention, raw materials used, parts are except another
Have that special instruction is outer is commercial convenient source, parts.
Embodiment 1
Seeing Fig. 1-2, BOD online auto monitoring system of the present invention constitutes as follows: nutritive salt and
Strain proportioning device, quantitative mixed aeration device, distributor, culture apparatus, data acquisition
Device；Said apparatus is sequentially connected and connects.Nutritive salt and strain proportioning device: include with underlying
The nutritive salt of stirring and two storage bottles of strain, preserve, nutritive salt and bacterium under 4 DEG C of low temperature
Plant in the middle of connecting line with three-way valve, by switching three-way valve, pipe passage can be switched to battalion
Support salt or strain any one,
Nutritive salt or strain are all extracted by the pump housing, by liquid metering device metered volume, then
It is pushed into appointment position by the pump housing.Above-mentioned liquid metering device includes liquid level tube and liquid level inspection
Survey device.Quantitatively aerator: be quantitative for volume of water sample, and realize water sample and battalion
Supporting salt and strain mixing the device of aeration performance, water sample is pumped in liquid level tube by the pump housing,
Quantitative by liquid level metering device, then squeeze into nutritive salt and strain in water sample, pass through the pump housing
Bleed, gas the most up direction aeration, make water sample, nutritive salt, strain uniformly mix.
Distributor: after water sample and nutritive salt and strain mixed aeration, by the anti-air that pushes away of the pump housing to liquid
Forming normal pressure in the pipe of position, can be pushed in distributor by water sample, distributor is by multiple electricity
Magnet valve and multiple passage composition, each passage is all individually controlled opening and closing by electromagnetic valve, and each leads to
Road is connected with culture bottle, makes water sample can arrive the culture bottle being arbitrarily designated by electromagnetic valve switching
In.Culture apparatus: when sample enters culture bottle, the check device on culture bottle can be by bottle
Air discharge, keep bottle internal gas pressure and ambient pressure to balance, check device has only export but no import
Characteristic, during sample culturing, negative pressure in bottle, can be produced, check device can make gas
Can not enter in bottle, maintain the sealing of bottle, absorb CO with placing in culture bottle simultaneously2
The device of alkali grain, culture bottle lucifuge in 20 DEG C of environment is cultivated.Data acquisition unit: cultivate
Pressure transducer on bottle detects in real time uploads pressure of the inside of a bottle value, is converted BOD by software for calculation
Value display is on a display screen.
Embodiment 2
See Fig. 3, use BOD online auto monitoring system of the present invention to carry out BOD analysis
Process is as follows: testing process starts, sample introduction process: valve 14 and valve 4 are switched to opening state,
Pump 1 is started working simultaneously, sample in the pump housing 1 is drawn into liquid level tube 2, eventually through
The liquid level detection device on liquid level tube 2 side determines liquid level, reaches quantitative purpose, then closes
Close pump 1 and valve 14 and valve 4, sample is temporarily stored in liquid level tube 2；Salt adding and add bacterium process:
The passage of switching valve 1 can reach to extract nutritive salt or the purpose of strain, leading to of switching valve 2
Nutritive salt or strain can be driven in liquid level tube 2 by road, or squeeze into from liquid level tube 1
In liquid level tube 2, extract nutritive salt or strain in liquid level tube 1 by pump 2, examined by liquid level
Survey device quantitatively after, push strain or nutritive salt in liquid level tube 2；Mixed aeration process:
After water sample and nutritive salt and strain have been driven in liquid level tube 2, open valve 3 simultaneously
Open pump 1, extract air by pump 1, by water sample and nutritive salt and strain aeration and mix
A period of time, it is then shut off pump 1 and valve 3 makes aeration process terminate；Rationed process: pump 1
Duty contrary with during aeration, in liquid level tube 2 blow, switch valve 5-8 and valve 9-12
Middle valve is opening state, and the situation of opening of switching valve 15-18 and valve 20-23 coordinates simultaneously, can
So that biased sample can reach Arbitrary Samples bottle or blank bottle, according to soft in reality is measured
Part regulation order pushes sample in sample bottle, can by repeat former step flow process can be repeatedly
Sample is repeatedly joined in sample bottle, to reach to specify experiment volume required, after being loaded
The valve opened during switch sampling is closed mode, can start homoisothermal cultivation process；Constant temperature culture
Process: cultivate in bottle inner plug and put the potassium hydroxide pellet that can absorb CO2, instrument well
Whole interior is with air-conditioning, and can control interior environment temperature is 20 DEG C, and sample is in sample bottle
Cultivate 5 days in constant temperature 20 DEG C, during cultivation bottom mixing speed need constant speed and uninterrupted, sample
Product are produced CO2 by strain consumption, are absorbed by potassium hydroxide pellet, make pressure of the inside of a bottle reduce；Inspection
Survey process, detects pressure of the inside of a bottle in real time by the pressure transducer on culture bottle bottle cap, and uploads
To computer, software for calculation can automatically converse BOD value and on screen real-time display digit with
And figure, data are stored in computer and are available for inquiry.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although ginseng
According to embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme is carried out various combination, amendment or equivalent, without departure from this
The spirit and scope of inventive technique scheme, all should contain in the middle of scope of the presently claimed invention.
Claims (10)
1. a BOD online auto monitoring system, it is characterised in that this system includes: battalion
Support salt and strain proportioning device, quantitative mixed aeration device, distributor, culture apparatus, number
According to harvester；Said apparatus is sequentially connected and connects.
BOD online auto monitoring system the most according to claim 1, it is characterised in that
Described nutritive salt and strain proportioning device, deposit with the nutritive salt of underlying stirring and two of strain
Storage bottle body, is saved under 4 DEG C of low temperature, and nutritive salt and strain are extracted by power part, utilize liquid
Body metering device is quantitative, then is pushed into appointment position by power part.
BOD online auto monitoring system the most according to claim 2, it is characterised in that
Described liquid metering device includes liquid level tube and liquid level detection device, is furnished with valve in the middle of pipeline,
Nutritive salt and strain can be oriented extraction or release by Vavle switching；Described power part is compacted
Dynamic pump or plunger displacement pump.
BOD online auto monitoring system the most according to claim 1, it is characterised in that
Described quantitative mixed aeration device, equipped with liquid level detection device, with sample introduction and air inlet,
Enter nutritive salt and strain hole, aspirating hole and the pump housing of bleeding.
BOD online auto monitoring system the most according to claim 4, it is characterised in that
Described sample introduction and air inlet are positioned at described device lower end, are by Vavle switching Channel-shifted purposes
Multiplex hole, opens sample holes control valve passage during sample introduction, entered by pump housing extraction sample；Expose
Open sample introduction and air inlet control valve passage during gas, make gas flow toward top from below, pass through
The extraction speed and the time that control the pump housing control aeration rate.
BOD online auto monitoring system the most according to claim 1, it is characterised in that
Described distributor is that the arrangement of multiple valve is connected with multiple passages, and it is logical individually to control each
The device in road, the told device left and right sides is the passage of multiple side-by-side valve arrangement, during distribution sample,
Application valve body opening and closing order sample can be made to enter any valve passage in limit, left and right, told device lower end band
An air inlet controlled by valve, upper end is had to connect with quantitative mixed aeration device sample introduction and air inlet
Connect.
BOD online auto monitoring system the most according to claim 1, it is characterised in that
Described culture apparatus is with pressure transducer, sample feeding pipe, the sealing culture bottle of check device,
Said apparatus is contained on bottle cap or on bottle；During bottle cap sealing, pressure transducer reads in real time
Bottle internal gas pressure, check device makes to occur without during sample introduction malleation, maintains bottle internal gas pressure steady；Bottle cap
Interior plug absorbs CO with placing2The device of alkali grain, and play sealing when bottle cap is tightened and make
With.
BOD online auto monitoring system the most according to claim 1, it is characterised in that
The pressure sensor data of described data acquisition unit each culture bottle of Real-time Collection, it is thus achieved that each
The force value of individual time is also converted into, by software, the device that BOD value shows on a display screen.
9. use the BOD online auto monitoring system described in claim 1-8 to carry out BOD to exist
The method that line is monitored automatically, it is characterised in that the method comprising the steps of:
Step one: auto injection process: valve 14 switches to water sample, starts pump 2 and extracts, will
After water sample is pumped into liquid level tube 2, close valve closing 14 and pump by proportioning device is quantitatively rear
Body；It is skip test when switching valve sample introduction is distilled water, when switching valve sample introduction is standard specimen is
Standard specimen is tested, and other steps are consistent；
Step 2: reagent adding process: switching valve 1 and valve 2, utilizes pump 2 by nutritive salt and bacterium
Plant after being driven in liquid level tube 1 quantitatively, switch valve 2, utilize pump 2 to be driven in liquid level tube 2；
Step 3: aeration mixed process: close all valve passages, starts pump 2 and outwards extracts sky
Gas, switching valve 3 air pipe line is channel status simultaneously, is not stopped in suction liquid level tube 2 by air
Reach aeration purpose, and can be by sample, nutritive salt and strain mix homogeneously；
Step 4: rationed process: after aeration terminates, closes valve closing 3 and pump 1, controls multichannel
The closing order of the valve of valve and connection bottle, starts pump 1 and starts air-blowing in liquid level tube 2, will
Sample is pushed in target culture bottle, and the check device on culture bottle lid is possible to prevent bottle to occur
Malleation, makes sample to enter smoothly；Sample-adding amount is strengthened by step one being repeated several times to step
Four, to reach the volume needed；
Step 5: homoisothermal cultivation process: device is in 20 DEG C of dark room conditions cultivation, cultivates
There is below Ping agitating device, carry out continuously stirred cultivation；
Step 6: detection process: detect pressure changing constantly, by computed in software module
Upload, screen shows BOD value.
The method of BOD online auto monitoring the most according to claim 9, its feature exists
In, described pump is peristaltic pump or plunger displacement pump；Described valve is two-way valve, three-way valve, electromagnetism
Valve or three-way magnetic valve.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124499A (en) * | 1976-02-03 | 1978-11-07 | Fmc Corporation | Sewage treatment system |
| CN101000341A (en) * | 2006-12-29 | 2007-07-18 | 中国科学院长春应用化学研究所 | Sensor type on-line monitor of biochemical oxygen demand |
| CN101315347A (en) * | 2007-05-29 | 2008-12-03 | 中国科学院过程工程研究所 | Device and method for on-line measuring biochemical oxygen demand in sample |
| CN101413915A (en) * | 2008-12-01 | 2009-04-22 | 中国科学院长春应用化学研究所 | Method for rapidly detecting biochemical oxygen demand by using on site culture organism |
| CN101639472A (en) * | 2009-08-31 | 2010-02-03 | 清华大学 | Reactor type BOD rapid measuring method and measuring instrument |
| CN102707075A (en) * | 2011-03-26 | 2012-10-03 | 江苏江分电分析仪器有限公司 | Laboratory automatic biochemical oxygen demand BOD5 detector and automatic measurement method |
| CN103528915A (en) * | 2013-10-19 | 2014-01-22 | 北京连华永兴科技发展有限公司 | Intelligent pressure-sensitive type biochemical oxygen demand (BOD) measuring instrument |
| CN204044166U (en) * | 2014-06-27 | 2014-12-24 | 浙江伊诺环保科技有限公司 | A kind of biochemical oxygen demand automonitor |
| CN206020212U (en) * | 2016-06-30 | 2017-03-15 | 力合科技（湖南）股份有限公司 | A kind of BOD online auto monitoring systems |
-
2016
- 2016-06-30 CN CN201610504153.9A patent/CN105928822B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124499A (en) * | 1976-02-03 | 1978-11-07 | Fmc Corporation | Sewage treatment system |
| CN101000341A (en) * | 2006-12-29 | 2007-07-18 | 中国科学院长春应用化学研究所 | Sensor type on-line monitor of biochemical oxygen demand |
| CN101315347A (en) * | 2007-05-29 | 2008-12-03 | 中国科学院过程工程研究所 | Device and method for on-line measuring biochemical oxygen demand in sample |
| CN101413915A (en) * | 2008-12-01 | 2009-04-22 | 中国科学院长春应用化学研究所 | Method for rapidly detecting biochemical oxygen demand by using on site culture organism |
| CN101639472A (en) * | 2009-08-31 | 2010-02-03 | 清华大学 | Reactor type BOD rapid measuring method and measuring instrument |
| CN102707075A (en) * | 2011-03-26 | 2012-10-03 | 江苏江分电分析仪器有限公司 | Laboratory automatic biochemical oxygen demand BOD5 detector and automatic measurement method |
| CN103528915A (en) * | 2013-10-19 | 2014-01-22 | 北京连华永兴科技发展有限公司 | Intelligent pressure-sensitive type biochemical oxygen demand (BOD) measuring instrument |
| CN204044166U (en) * | 2014-06-27 | 2014-12-24 | 浙江伊诺环保科技有限公司 | A kind of biochemical oxygen demand automonitor |
| CN206020212U (en) * | 2016-06-30 | 2017-03-15 | 力合科技（湖南）股份有限公司 | A kind of BOD online auto monitoring systems |
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