Online coliform group detection system

Abstract

The invention discloses an online coliform group detection system. According to the system, a reagent storage unit is used for storing a cleaning solution, a culture solution and a sample solution respectively, unused disposable sterile hole discs are stored in a hole disc liquid-filling packaging unit, a liquid mixing and transferring unit sucks and transfers a liquid contained in the reagent storage unit to the unused disposable sterile hole discs, the hole disc liquid-filling packaging unit seals the hole discs after the liquid is filled, a hole disc transferring unit holds the sealed holediscs and transmits the hole discs to a culture detection unit, the culture detection unit performs constant-temperature culture on the hole discs, and can perform image recognition on the hole discscultured for a period of time, a control processing module gives a detection result based on the color change of each hole after image recognition and the number of holes with color change, and according to data in a maximum possible number table, and thereby the online coliform group detection is realized. The system can realize automatic on-line detection, the manual operation is not needed, thehole discs are disposable, and thereby the detection result is prevented from being influenced by incomplete cleaning of culture vessels.

Description

technical field [0001] The invention relates to the technical field of water quality detection, and further relates to an online detection system for coliform bacteria. Background technique [0002] Escherichia coli is the most abundant bacterium in human and animal feces, and it is an internationally recognized general indicator for testing the epidemiological safety of various water quality and food. The more Escherichia coli, the higher the degree of contamination of the water source by human and animal feces, the higher the possibility of the existence of pathogenic bacteria, which brings potential dangers to human health, especially enterohaemorrhagic Escherichia coli can cause human hemorrhagic enteritis and even death . In order to avoid the prevalence and outbreak of related diseases, in recent years, in the implementation of HACCP (Hazard Analysis and Critical Control Point) management in some countries, E. coli detection is used as a monitoring indicator of microb...

AI Technical Summary

Problems solved by technology

At present, the design of E. coli online monitoring instruments at home and abroad all refer to the laboratory enzyme-substrate method in the national standard, but the laboratory enzyme-substrate method relies on manual operations and is difficult to automate

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