CN2596357Y - On-site quick measurer biological reactor for marine biochemical oxygen demand - Google Patents
On-site quick measurer biological reactor for marine biochemical oxygen demand Download PDFInfo
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- CN2596357Y CN2596357Y CN 03201029 CN03201029U CN2596357Y CN 2596357 Y CN2596357 Y CN 2596357Y CN 03201029 CN03201029 CN 03201029 CN 03201029 U CN03201029 U CN 03201029U CN 2596357 Y CN2596357 Y CN 2596357Y
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- reactor
- ring type
- agitating
- circular ring
- biological bed
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model relates to a biological reactor, which is a key part of an on-site quick measurer for marine biochemical oxygen demand, and is composed of a reactor casing, an agitating biological bed, a thermostatic controller, and an agitating pump. The inner part of the reactor casing of a circular container is filled with a sea water sample and the agitating biological bed, and the circulation is formed under the action of the agitating pump. The agitating biological bed is a short plastic tube, which can fix micro organism flora on the inner wall of the agitating biological bed; the bond area of the flora is increased, and the total amount of the flora is increased, which results in that the inner part of the biological reactor is always kept with the high density of the organism flora. A control circuit of the thermostatic controller controls a heater according to the temperature signal of a temperature-sensing element, which ensures that the biological reactor is controlled at a constant temperature with the uneven degree of the temperature less than 0.2 DEG C; thus the metabolism of the micro organisms are stable under the state of high efficiency. The micro organisms in the agitating biological bed are in dynamic balance under the constant temperature state, and the efficiency of oxidation is stable. Dissolved oxygen, which is consumed by the micro organisms for degrading organic matter, is measured out by two oxygen electrodes installed on a water inlet and a water outlet. The consumption of the oxygen is in definitely corresponding relation with the concentration of the organic matter in the water sample, and the value of BOD can be calculated out after operation and process. The utility model realizes the on-site quick measure for the BOD of the sea water, and can be widely used for marine environment investigation and marine pollution monitoring.
Description
Technical field
Bio-reactor described in the utility model is a kind of thalassochemistry surveying instrument, specifically is the critical component of seawater biochemical oxygen demand (BOD) on-site rapid measurement instrument.
Background technology
Organic pollutant category in the seawater is various, the dissolved oxygen DO that the microbial degradation organism is consumed, and promptly BOD (biochemical oxygen demand) as the overall target of organic pollutants in the water, is one of most important project in the water quality routine monitoring.Traditional BOD measuring method is that on-site sampling is taken back the laboratory and analyzed, water sample was cultivated 5 days under 20 ℃ ± 1 ℃ condition, dissolved oxygen value before and after working sample is cultivated respectively, the difference of the two promptly is the dissolved oxygen DO that the microbial degradation organism is consumed, and is commonly referred to five-day BOD.This BOD measuring method complicated operation, time and effort consuming, poor in timeliness can't realize on-the-spot monitoring automatically.
Summary of the invention
The utility model is released a kind of bio-reactor that fills with seawater sample and stir biological bed, its objective is microorganism species is fixed on the inwall that stirs biological bed, make the high density of keeping biological flora in the bio-reactor all the time, to realize the on-site rapid measurement of seawater BOD.
The related bio-reactor of the utility model is made up of reactor shell, the biological bed of stirring, radiator valve, stirring pump.
Reactor shell is that a center has circular hole, inside to be the circular ring type container of hollow.Into thing mouth is arranged at the reactor shell bottom, communicates with the circular ring type internal tank.Be full of seawater sample in the circular ring type container of bio-reactor and stir biological bed.
Stir biological bed and be short plastic tube, microorganism species can be fixed on the inwall that stirs biological bed, increase the bond area of flora, improve the total amount of flora, make the high density of keeping biological flora in the bio-reactor all the time.Biological bed is changed by advancing the thing mouth in the circular ring type container.
Radiator valve is made up of well heater, temperature-sensing element, temperature-adjusting circuit.The well heater of radiator valve is made of on heating muff resistance wire, and heating muff is coaxial to be arranged on the circular periphery of reactor shell center hole.Temperature-sensing element is installed in reactor shell and advances on the thing flap.Well heater is connected with temperature-sensing element by control circuit.Control circuit makes bio-reactor be controlled at steady temperature according to the temperature signal control heater of temperature-sensing element, and the metabolic stability that keeps microorganism is in the high-level efficiency situation.The non-uniform temperature degree is less than ± 0.2 ℃ in the bio-reactor.
Stirring pump is the magnetic drive pump that has two water-supply-pipes.Two water-supply-pipes communicate with the circular ring type internal tank by the water transport port at bio-reactor circular ring type container bottom and middle part respectively.Under the magnetic drive pump effect, the seawater in the circular ring type container produces circulation, comes out from the water transport port of container bottom, and the water transport port of portion is entered from container again.Simultaneously, biological bed also stirs with water circulation, realizes the stirring of bio-reactor inside.The stirring of bio-reactor inside can keep water body even, realizes the corresponding exchange of the inside and outside water body of biological bed.Circular ring type container bottom water outlet water transport port only circulates in bio-reactor to ensure biological bed by the dress screen pack.
Bio-reactor circular ring type container top is provided with water inlet, and container top is provided with water delivering orifice and exhausr port, is used for into and out of the automatic discharge of the gentle bubble of test water sample.
During instrument work, seawater sample injects bio-reactor by peristaltic pump with constant flow rate, and produces circulation under the magnetic drive pump effect, and simultaneously, bio-reactor enters temperature constant state.Stir the inner microorganism of biological bed and be in mobile equilibrium, oxidation efficiency is stable, and organism is degraded by microorganisms in reactor in the water sample.The dissolved oxygen DO that organism is degraded by microorganisms and is consumed is measured by two oxygen electrodes that are installed in water inlet and water delivering orifice, and both differences are the oxygen utilization of biological respinse.Organic concentration has definite corresponding relation in this oxygen utilization and the water sample, can obtain the BOD value through calculation process.
The utility model has been realized the on-site rapid measurement of seawater BOD, can be widely used in marine environment investigation and marine pollution monitoring.
Description of drawings
Fig. 1 is the bio-reactor orthogonal view.Among the figure, the 1-reactor shell, 2-stirs biological bed, the 3-center hole, 4-heating muff, 5-advance the thing mouth, the 6-base, the 7-water-supply-pipe, 8-stirs pump, 9-water inlet, 10-water delivering orifice, 11-exhausr port.
Fig. 2 is biological reactor-side sectional view.Among the figure, the 1-reactor shell, the 3-center hole, the 4-heating muff, the 6-base, the 9-water inlet, the 10-water delivering orifice, 11-exhausr port, 12-advance the thing flap, the 13-temperature-sensing element.
Embodiment
Now in conjunction with the accompanying drawings embodiment of the present utility model is illustrated.
Bio-reactor housing 1 is the circular ring type container, is full of seawater sample in the container and stirs biological bed 2.Stir biological bed 2 and be short plastic tube, length 12mm, internal diameter 4mm.
Radiator valve heating muff 4 is coaxial to be arranged on the circular periphery of reactor shell center hole 3.Temperature-sensing element 13 is installed in reactor shell and advances on the thing flap 12.
Two water-supply-pipes 7 that stir pump 8 communicate with bio-reactor circular ring type container bottom water transport port and middle part water transport port respectively.Press the dress screen pack between circular ring type container bottom water transport port and the water-supply-pipe 7.
Bio-reactor circular ring type container top is provided with water inlet 9 and water delivering orifice 10, and exhausr port 11 is arranged at the top.
Claims (4)
1, a kind of seawater biochemical oxygen demand on-site rapid measurement instrument bio-reactor, it is characterized in that by reactor shell (1), stir biological bed (2), radiator valve, stirring pump (8) forms, reactor shell (1) is that a center has circular hole (3), inside is the circular ring type container of hollow, stir biological bed (2) and seawater sample and be full of the circular ring type container, the heating muff of radiator valve well heater (4) is coaxial to be arranged on the circular periphery of reactor shell center hole (3), and two water-supply-pipes (7) that stir pump (8) communicate with the circular ring type internal tank by the water transport port at bio-reactor circular ring type container bottom and middle part respectively.
2, according to the described seawater biochemical oxygen demand of claim 1 on-site rapid measurement instrument bio-reactor, the bottom that it is characterized in that reactor shell (1) is advanced thing mouth (5) and is communicated with the circular ring type internal tank, and temperature-sensing element (13) is installed in reactor shell and advances on the thing flap (12).
3, according to the described seawater biochemical oxygen demand of claim 1 on-site rapid measurement instrument bio-reactor, it is characterized in that reactor circular ring type container top is provided with water inlet (9), the top is provided with water delivering orifice (10) and exhausr port (11).
4,, it is characterized in that stirring biological bed (2) and be short plastic tube, length 12mm, internal diameter 4mm according to the described seawater biochemical oxygen demand of claim 1 on-site rapid measurement instrument bio-reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201029 CN2596357Y (en) | 2003-01-16 | 2003-01-16 | On-site quick measurer biological reactor for marine biochemical oxygen demand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201029 CN2596357Y (en) | 2003-01-16 | 2003-01-16 | On-site quick measurer biological reactor for marine biochemical oxygen demand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596357Y true CN2596357Y (en) | 2003-12-31 |
Family
ID=33753122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03201029 Expired - Fee Related CN2596357Y (en) | 2003-01-16 | 2003-01-16 | On-site quick measurer biological reactor for marine biochemical oxygen demand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596357Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011022921A1 (en) * | 2009-08-31 | 2011-03-03 | 清华大学 | Reactor-type rapid measuring instrument for biochemical oxygen demand (bod) and measurement method thereof |
| CN101315347B (en) * | 2007-05-29 | 2011-11-09 | 中国科学院过程工程研究所 | Device and method for on-line measuring biochemical oxygen demand in sample |
| CN111896699A (en) * | 2020-07-01 | 2020-11-06 | 武汉新烽光电股份有限公司 | BOD online monitoring device and method based on composite strain putting |
-
2003
- 2003-01-16 CN CN 03201029 patent/CN2596357Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315347B (en) * | 2007-05-29 | 2011-11-09 | 中国科学院过程工程研究所 | Device and method for on-line measuring biochemical oxygen demand in sample |
| WO2011022921A1 (en) * | 2009-08-31 | 2011-03-03 | 清华大学 | Reactor-type rapid measuring instrument for biochemical oxygen demand (bod) and measurement method thereof |
| CN111896699A (en) * | 2020-07-01 | 2020-11-06 | 武汉新烽光电股份有限公司 | BOD online monitoring device and method based on composite strain putting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |