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TC-50 BOD Rapid Analyzer | BOD Rapid Analyzer
1、 Instrument Introduction:
Biochemical Oxygen Demand (BOD) is one of the important indicators and detection parameters of water quality organic pollution commonly used internationally. Its traditional method, the five-day BOD5 dilution method, is still widely used for analysis and detection at home and abroad. However, this method requires a 5-day analysis cycle and is cumbersome to operate, which brings many inconveniences to sewage treatment and environmental detection. The vast number of environmental testing personnel urgently need a rapid and accurate measuring instrument to improve work efficiency and reduce labor intensity.
►The 50 type BOD rapid analyzer has faster detection speed, simpler operation, shortened microbial membrane cultivation time, and further improved product detection accuracy.The 50 type BOD rapid analyzer adopts the microbial electrode method, which can quickly determine the BOD value in water samples, and is easy to operate and accurate in measurement. The principle is based on the oxygen consumption metabolism of organic matter by microorganisms, and the determination of BOD only involves the initial oxidation rate, so the determination of a sample can be completed within 5-8 minutes. Greatly reducing the time required for measurement. This method complies with the "Rapid Determination Method of Biochemical Oxygen Demand (BOD) Microbial Sensor for Water Quality" (HJ/T86-2002) and was listed as a Class A method in the "Water and Wastewater Detection and Analysis Methods" (Fourth Edition) published in 2002.
2、 Product Usage:
The BOD rapid analyzer adopts the microbial electrode method, which can quickly determine the BOD value in water samples. It is easy to operate, accurate to measure, and has a fast measurement speed. It is suitable for determining BOD in surface water, domestic sewage, and industrial wastewater that does not contain obvious toxic effects on microorganisms.
3、 Main features:
1. Advanced principle: using microbial electrode method
2. Accurate results: Strong comparability with the five-day method
3. Easy to operate: microcomputer control, intelligent measurement
4. Measurement time: 5-8 minutes to complete a sample measurement
5. Easy maintenance: simply replace the biofilm and infusion tube regularly
6. Water samples do not require pre-treatment and have strong anti-interference ability
7. High safety: The strains used are harmless to the human body
8. High reliability: simple structure, no vulnerable components, long lifespan
9. Printing function: Equipped with a micro printer to print and output measurement results.
4、 Execute biao zhun:
HJ/T 86-2002 "Determination of Biochemical Oxygen Demand (BOD) in Water Quality - Microbial Sensor Rapid Determination Method》
5、 Technical indicators:
1. Measurement range: 2-50 mg/L (zu (i) can measure up to 5000mg/L)
2. Repeatability: ≤ 6%
3. Accuracy: better than ± 8%
4. Resolution: 0.1 mg/L
5. Sample testing time: 5-8 minutes
6. Injection method: Constant current continuous injection
7. Buffer solution consumption: 5ml/min
8. Required sample volume: 50ml required for each measurement
9. Environmental temperature: (5-40) ℃
10. Relative humidity: ≤ 90%
11. Power: 100W
12. Power supply: AC220V 50Hz
13. External dimensions: (560 × 360 × 210) mm
14. Weight: 16kg (including packaging 20kg)
6、 Measurement principle:
The instrument adopts the microbial electrode method, which tightly adheres the microbial membrane to the surface of the oxygen permeable membrane of the polarographic dissolved oxygen electrode, thus forming the microbial electrode. The instrument adopts a flow measurement method, which means that the sample flows through the microbial electrode. The microbial membrane contains a large number of aerobic microorganisms, which are very active in aerobic and organic environments. The output current of the oxygen electrode is proportional to the concentration of dissolved oxygen. When a liquid without organic matter passes through the flow cell, the dissolved oxygen passing through the microbial membrane hardly decreases. When a solution containing organic matter passes through a circulation pool, microorganisms consume a large amount of dissolved oxygen, which is proportional to the concentration of organic matter, resulting in a corresponding decrease in dissolved oxygen passing through the microbial membrane. The dissolved oxygen electrode measures the change in dissolved oxygen concentration to calculate the BOD value.
7、 Product configuration:
1. 1 host
2. 1 peristaltic pump
3. 1 electrode
4. 10 microbial membranes (to be replaced every February to March)
5. 5 Teflon films (changed every six months)
6. 20 PVC liquid pipes (replaced once a month)
7. 1 power cord
8. 1 copy of instruction manual
9. 1 certificate of conformity
10. 1 warranty card
11. Electrolyte (Qingdao Traceability Environmental Protection provides formula for customers to self prepare to reduce costs)
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