CN206399878U - A kind of device for detecting chemicals to activated sludge respiration inhibition toxicity - Google Patents
A kind of device for detecting chemicals to activated sludge respiration inhibition toxicity Download PDFInfo
- Publication number
- CN206399878U CN206399878U CN201621204256.5U CN201621204256U CN206399878U CN 206399878 U CN206399878 U CN 206399878U CN 201621204256 U CN201621204256 U CN 201621204256U CN 206399878 U CN206399878 U CN 206399878U
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- aeration
- unit
- casing
- dissolved oxygen
- bottle
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Abstract
The utility model is related to a kind of device for detecting chemicals to activated sludge respiration inhibition toxicity, and the device includes casing, culture unit, aeration unit and determination unit；Casing is the square container system for completing respiratory inhibition test；Unit is cultivated to provide the place of tested material, microorganism and culture medium contact；Aeration unit directly can be ventilated to the nutrient solution in assay flask, and determination unit is made up of the individually pedestal containing magnetic stirring function, dissolved oxygen electrode, pH electrodes and timer.The utility model device is simple and easy to do, workable.Device structure is simple, connecting line is simple, manufacture and easy to maintenance, greatly alleviates the defect such as time-consuming, laborious brought by manual operation.
Description
Technical field
The utility model belongs to ecological toxicology experiment field, and in particular to one kind detection chemicals is breathed to activated sludge
Suppress the device of toxicity.
Background technology
Organic chemicals be discharged into environment it is previous as will be dirty by sewage treatment plant's processing, activated sludge process
The most common and effective biological treatment in water treatment plant, many organic chemicals may occur in the process absorption and
Biodegradation, but still there is many persistence and highly toxic substance to be likely to be difficult to remove in sewage treatment plant.Poison when having
Product will produce inhibitory action to activated sludge when running up to finite concentration, and then change the bioactivity of sludge, influence sewage
The effect of processing.
In the risk assessment of chemicals, activated sludge respiration inhibition toxicity data has turned into one in ecological toxicology field
Item important references index, in order to assess respiration inhibition poisonous effect of the chemicals to activated sludge, generally using economic with cooperating
The chemicals method of testing of development institution (OECD)：Activated sludge respiration inhibition test (method numbering 209).Method And Principle is：
Tested material contacted with activated sludge and artificial wastewater 3 hours (if tested material is degraded rapidly, can use shorter exposure cycles,
Such as 30 minutes) after, determine respiratory rate in the oxygen determination container of a closed insertion oxygen electrode.By containing tested material
The OUR of test group calculates the suppression percentage of OUR compared with the average OUR of the control group without tested material
Rate.Finally give EC of the tested material to activated sludge respiration inhibitionx(such as EC50) and/or without observation effect concentration (NOEC).Should
Method at least needs 1 measurement in preliminary experiment, if preliminary experiment is poisonous, and formal test at least needs 68 measurements.Due to state
It is inside and outside not have the self-reacting device of such a test at present so that the experiment needs many people to consume a longer time and could complete, experiment
Workload is huge.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of malicious to activated sludge respiration inhibition for chemicals
Property test integrated automatic detection device, to determine respiration inhibition toxicity of the chemicals to activated sludge, reduce the work of experiment
Measure.
This experimental rig includes casing, culture unit, aeration unit and determination unit；Described culture unit and aeration is single
Member is arranged in casing；Described casing is clamshell doors, is made up of moldable resin material；Culture unit is transparent test with cover
Bottle, caping is provided with the circular hole for moving into dissolved oxygen electrode and pH electrodes just, the test bottle base that the test bottle is placed in casing
On；The aeration unit is made up of aeration head, aeration pump and switch controller, and the aeration pump is arranged on cabinet wall, should
Aeration head is connected with the aeration conduit of aeration pump, aeration head is connected with above-mentioned test bottle；The determination unit is by magnetic agitation
Device base, timer, dissolved oxygen electrode, pH electrodes and digital display screen composition, dissolved oxygen electrode and pH electrodes are inserted into
In test bottle to be measured, and it is connected with digital display screen.
The casing of metal material may be caused to corrode in view of chemical reagent and light and handy effect, the casing is disposed
It is made of the higher plastic material of transparency.The positive clamshell doors of the casing are by the higher plastic material system of transparency
Into second layer bottom plate is that resin of the thickness no more than 5mm makes in casing, and remaining each facestock matter is not more than 5mm using thickness
Resin material make.Top, which is equipped with, can start the translucent cover with folding at any time, wherein guard frame facet and be connected with casing
There is rubber gasket at place.
Described test bottle is the transparent cylindrical vial with serum cap, bottom of bottle diameter and bottle height be respectively 8 cm and
13cm, caping is provided with the circular port for being exactly fitted to dissolved oxygen electrode.Described aeration conduit diameter is not more than 5mm, aeration quantity
About 0.5~1L/min.
Described dissolved oxygen electrode and pH electrodes external diameter matches with bore inner diameter on serum cap, about 1.5cm；Timer
Can artificially manually opened and it must stop, and in the change for showing the moment in real time in digital display screen；Magnetic stirring apparatus turns
Speed by the knob on manual disk it can be seen that controlled.
The beneficial effects of the utility model are that temperature control, aeration, culture and the measurement of sample are all automatic realization, every time may be used
The respiratory rate of multiple test process is determined, the working strength of tester declines, testing efficiency lifting.
Brief description of the drawings：
Fig. 1：A kind of detection chemicals that the utility model is related to is single to being cultivated in activated sludge respiration inhibition toxicity device
First front view.
Fig. 2：A kind of detection chemicals that the utility model is related to is single to being cultivated in activated sludge respiration inhibition toxicity device
First left view.
Fig. 3：A kind of detection chemicals that the utility model is related to is single to being cultivated in activated sludge respiration inhibition toxicity device
First rearview.
Fig. 4：A kind of detection that the utility model is related to is to determination unit main view in activated sludge respiration inhibition toxicity device
Figure.
Fig. 5：A kind of detection that the utility model is related to is to determination unit left view in activated sludge respiration inhibition toxicity device
Figure.
Fig. 6：A kind of detection that the utility model is related to is overlooked determination unit in activated sludge respiration inhibition toxicity device
Figure.
Wherein：1. air pump；2. air pump control handle；3. air pump pipe joint；4. test bottle base；5. experiment
Casing clamshell doors；6. cabinet base；7. aeration pump power line；8 be aeration pump blower fan；9 be digital display screen, can displays temperature,
Moment, pH and dissolved oxygen concentration；10 digital display screen shift knobs；11 timer start-stop buttons；12 be display/panel bracket；
13 be magnetic stirring apparatus；14 be dissolved oxygen electrode；15 be electrode neck；16 be test bottle；17 test bottle serum caps；18 be magnetic
Power agitator；19 be magnetic agitation rotating speed control button；20 be magnetic stirring apparatus shift knob.
Embodiment：
The utility model is described in further details below in conjunction with accompanying drawing.
The operating method of the present apparatus is as follows：
Activated sludge respiration inhibition test device as shown in Figure 1, wherein each symbol or letter are expressed as follows：
1 is air pump (10)；2 be air pump control handle (being used for controlling switch and aeration quantity)；3 be air catheter pump
Joint；4 be test bottle base (being used to fix test bottle)；5 be the clamshell doors (opens outward) of experiment casing, for opening rear
Bedpan built-in function；6 be cabinet base, for supporting whole experiment casing；7 be aeration pump power line；8 be aeration pump wind
Machine；9 be digital display screen, can displays temperature, moment, pH and dissolved oxygen concentration；10 digital display screen shift knobs；11 timing
Device start-stop button；12 be display/panel bracket；13 be magnetic stirring apparatus electrode suppor；14 be dissolved oxygen electrode；15 be electrode card
Groove；16 be test bottle；17 test bottle serum caps；18 be magnetic stirring apparatus；19 be magnetic agitation rotating speed control button；20 be magnetic
Power whip switch button.
The title and size of each main member of the device are as follows：
Air pump 1：Resin material, long 10cm, wide 7cm, thickness 6cm.
Air pump control handle 2：Resin material, aeration quantity can be controlled in 0.3~2L/min.
Air pump pipe joint 3：Metal material, length 6mm can entangle internal diameter 5mm rubber hose.
Test bottle base 4：Quality of rubber materials, internal diameter 8cm.Height 1cm.
Clamshell doors 5：Transparent resin material, both sides long 60cm, wide 30cm, thickness 5mm respectively.
Cabinet base 6, resin material, long 60cm, wide 26cm, height 5cm.
Aeration pump power line 7：Rubber-covered crust.Length is no less than 1m.
Aeration pump blower fan 8：Rated power 50w.
Digital display screen 9：Resin material, screen aspect is respectively 13cm and 9cm.
Digital display screen shift knob 10；Resin material, length is 16mm, and width is 1cm.
Timer start-stop button 11；Resin material, diameter 5mm.
Display/panel bracket 12：Resin material, length 10cm, width 2cm, thickness 1cm
Magnetic stirring apparatus support 13：Resin material, length 20cm, width 2cm, thickness 1cm
Dissolved oxygen electrode 14：Resin material+glass-membrane electrode, length 15cm, external diameter 1.5cm.
Electrode neck 15：Resin material, radius 1.5cm, thickness 3mm.
Test bottle 16：Clear glass material, height 13cm, diameter 8cm
Test bottle serum cap 17：Quality of rubber materials, diameter 5cm, interstitial hole internal diameter 1.8mm.
Magnetic stirring apparatus 18：Metal material, length 18cm, width 12cm, height 8cm.
Magnetic agitation rotating speed control button 19：Resin material, diameter 2cm.
Magnetic stirring apparatus shift knob 20, resin material, length and width are 1cm.
Activated sludge is gathered to laboratory from sewage treatment plants, is configured to again after fully being washed with deionized water dense
Spend the suspension for 3g (dry weight)/L and tame that (artificial wastewater addition be 50mL/1L dirts as inoculum and using artificial wastewater
Mud).
Before on-test, sequentially add tested material in test bottle, deionized water 234mL, artificial wastewater 16mL and
250mL inoculums and it is put into stirrer.For blank control, tested material only need to be free of；For control comparisons, tested material is 3,
5- chlorophenesic acids.When experiment starts, test bottle is placed on test bottle pedestal and fixed, connect aeration pumping source, connection exposes
Airway and aeration head, and stretch into test bottle, open after aeration switch pump, regulation aeration flow to appropriate location, 3h
Stop aeration, take out test bottle to be measured.
Before aeration terminates in 5min, prepare determination unit：By the magnetic stirring apparatus switch and numerical monitor of determination unit
Screen is opened, and at the end of aeration, test bottle is taken out rapidly, serum cap is covered, is placed on magnetic stirring apparatus, inserts dissolved oxygen electrode,
And the dissolved oxygen numerical value on display screen is observed, when dissolved oxygen starts stable decline (5.5~7.5mg/L), timing is pressed rapidly
Device, and initial dissolution oxygen numerical value is recorded, (notice that the stopwatch on observation digital display screen starts whether the display time is 00：00, it is no
Timer should be then pressed again and is reset and is started).When dissolved oxygen value reaches 2mg/L, press timer and stop timing, record dissolving
Oxygen drop to 2mg/L from initial value needed for time (s), and record temperature pulls up dissolved oxygen electrode, determines after pH value of solution
The sample test can be stopped, cleaning electrode is ready for next sample test.After all batch samples have been tested, business
Glass electrode and aeration flexible pipe and aeration head must be cleaned in time.Test chamber and casing cleaning are finished, each power supply is closed
After can leave.
Test data is calculated based on oxygen consumption rate in solution in test bottle in the unit interval.Specific result of calculation can join
According to the chemicals method of testing ecosystem and effect roll up the relevant data processing of -209 activated sludge respiration inhibition tests with calculate into
OK.
Claims (5)
1. a kind of device for detecting chemicals to activated sludge respiration inhibition toxicity, it is characterised in that：Described device include casing,
Cultivate unit, aeration unit and determination unit；Described culture unit and aeration unit are arranged in casing；Described casing is
Clamshell doors, are made up of moldable resin material；Culture unit is transparent test bottle with cover, and caping is electric provided with dissolved oxygen is moved into just
Pole and the circular hole of pH electrodes, the test bottle are placed on the test bottle base in casing；The aeration unit is by aeration head, aeration
Pump and switch controller composition, the aeration pump are arranged on cabinet wall, the aeration conduit of the aeration pump and are connected with aeration
Head, aeration head is connected with above-mentioned test bottle；The determination unit is by magnetic stirring apparatus base, timer, dissolved oxygen electrode, pH electricity
Pole and digital display screen composition, dissolved oxygen electrode and pH electrodes are inserted into test bottle to be measured, and and digital display screen
It is connected.
2. device according to claim 1, it is characterised in that：The positive clamshell doors of the casing are by transparent plastic material
It is made, second layer bottom plate is that resin of the thickness no more than 5mm makes in casing, and remaining each facestock matter is not more than using thickness
5mm resin material makes.
3. device according to claim 1, it is characterised in that：Described test bottle is the transparent cylindrical glass with serum cap
Glass bottle, bottom of bottle diameter and bottle height are respectively 8 cm and 13 cm, and caping is provided with the circular port for being exactly fitted to dissolved oxygen electrode.
4. device according to claim 1, it is characterised in that：Described aeration conduit diameter is not more than 5mm, and aeration quantity is
0.5~1L/ min.
5. device according to claim 1, it is characterised in that：Described dissolved oxygen electrode and pH electrodes external diameter and rubber
Cover bore inner diameter matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204256.5U CN206399878U (en) | 2016-11-08 | 2016-11-08 | A kind of device for detecting chemicals to activated sludge respiration inhibition toxicity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204256.5U CN206399878U (en) | 2016-11-08 | 2016-11-08 | A kind of device for detecting chemicals to activated sludge respiration inhibition toxicity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399878U true CN206399878U (en) | 2017-08-11 |
Family
ID=59507069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621204256.5U Expired - Fee Related CN206399878U (en) | 2016-11-08 | 2016-11-08 | A kind of device for detecting chemicals to activated sludge respiration inhibition toxicity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206399878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375610A (en) * | 2018-01-18 | 2018-08-07 | 大连民族大学 | A kind of bearing calibration for analyzing sludge enzymatic activity based on temperature inhibiting rate |
-
2016
- 2016-11-08 CN CN201621204256.5U patent/CN206399878U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375610A (en) * | 2018-01-18 | 2018-08-07 | 大连民族大学 | A kind of bearing calibration for analyzing sludge enzymatic activity based on temperature inhibiting rate |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20211108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |