Biochemical Oxygen Demand (BOD, Biochemical Oxygen Consumption)

• An important indicator that indirectly represents the degree of organic pollution in water bodies by the amount of dissolved oxygen consumed through microbial metabolism. It is defined as: under aerobic conditions, the amount of free oxygen consumed by aerobic microorganisms during the oxidative decomposition of organic matter per unit volume of water, expressed in ppm (mg/L). The higher the value, the more organic pollutants in the water, and the more severe the pollution.

• The international standard is to perform a 5-day incubation in an incubator set at 20°C as the standard for determining biochemical oxygen demand, i.e., five-day biochemical oxygen demand (BOD5).

Oxygen Uptake Rate (OUR, Oxygen Uptake Rate)

The oxygen uptake rate measures the oxygen consumption rate of activated sludge, which can be used to analyze whether toxic substances are present, loading conditions, and sludge discharge balance, so as to better set up and control the wastewater treatment process.

Specific Oxygen Uptake Rate (SOUR)

It is a quantitative indicator for evaluating the stability of activated sludge in wastewater treatment, referring to the oxygen consumption per unit mass of activated sludge per unit time; SOUR is an important biochemical indicator in experimental studies such as microbial culture. The SOUR (respiration intensity) of microbial cells refers to the amount of oxygen consumed per unit weight of cells per unit time.

• Wide range, dissolved oxygen 50.00 mg/L (ppm), saturated dissolved oxygen 600.0%

• Measures dissolved oxygen, saturated dissolved oxygen, atmospheric pressure, temperature and multiple important water indicators

• Dissolved oxygen measurement can be directly converted to BOD, OUR, SOUR measurement results

• BOD-Biochemical Oxygen Demand, OUR-Oxygen Uptake Rate or Oxygen Consumption Rate,

• SOUR-Specific Oxygen Uptake Rate or Specific Oxygen Consumption Rate, project measurement, built-in calculation formulas for convenient measurement

• GLP management functions, temperature compensation, automatic atmospheric pressure compensation, salinity compensation

• 400 sets of data storage, USB data interface, auto power-off mode

• Excellent waterproof performance, compliant with IP67 standard, suitable for laboratory and field measurements