On-line BOD (biochemical oxygen demand) measurer

Abstract

The invention discloses an on-line BOD (biochemical oxygen demand) measurer which comprises a touch display, a data processing center and a BOD measurement unit, wherein the BOD measurement unit comprises a reactor, a temperature control device and a data acquirer; the temperature control device is provided with a temperature control cavity; the reactor is positioned in the temperature control cavity and is provided with a water inlet pipe and a water outlet pipe; the water inlet pipe is provided with a first flowing basin; the water outlet pipe is provided with a second flowing basin; a first electrode seat is arranged on the first flowing basin; a first dissolved oxygen electrode is inserted into the first electrode seat; a second electrode seat is arranged on the second flowing basin; a second dissolved oxygen electrode is inserted into the second electrode seat; the temperature control device has a good temperature stabilization effect and small temperature fluctuation, so that the detection precision of the on-line BOD measurer can be effectively improved. With the adoption of an on-line measurement mode, the whole measurement process is full automatic, human intervention is not needed; the on-line BOD measurer can realize continuous monitoring, randomly display a dynamic BOD value of water and realize real-time monitoring and can also form an environment monitoring internet of things through a network, so that the environment monitoring environment is greatly improved.

Description

technical field [0001] The invention relates to the technical field of detection technology, in particular to a BOD online measuring instrument. Background technique [0002] Biochemical oxygen demand (BOD) refers to the dissolved oxygen consumed by microorganisms to decompose certain oxidizable substances in water under specified conditions, especially the biochemical process of decomposing organic matter. BOD is one of the most important indicators to detect the degree of water pollution. When domestic sewage or industrial water is discharged into rivers, rivers or lakes, the aerobic microorganisms in the water will decompose the components in the sewage, so the dissolved oxygen in the water will be consumed in large quantities, making some organisms that need a lot of oxygen to survive, such as fish Difficult to survive. On the other hand, in order to reduce the pollution of the environment, the sewage will be treated before it is discharged into the natural water body ...

AI Technical Summary

Problems solved by technology

The traditional constant temperature device is heated by a water bath or an aluminum heat conducting core, which uses a liquid or solid heat medium to maintain the temperature, and its constant temperature effect is poor and the temperature fluctuates greatly

Moreover, the traditional microbial electrode is loaded in an aluminum thermostat, which makes it very inconvenient to replace the microbial film

On the other hand, the limitations of existing methods lead to the fact that the current BOD rapid detection equipment cannot really provide fast and accurate water parameters, which greatly limits the application of BOD in environmental monitoring

Images