METHOD FOR DETECTING HAZARDOUS MATERIAL AND EQUIPMENT FOR THE SAME METHOD

摘要

PROBLEM TO BE SOLVED: To detect a hazardous material contained in sewage and to previously prevent its outflow outside a system. SOLUTION: A water sample collected from sewage is fed to a reaction unit 32 and is added with sample bacterial cells. After that, the hazardous material in the sewage is detected from an ATP concentration change within the bacterial cells which is calculated in a hazardous material decision unit 35. The sample bacterial cells belong to Escherichia coli or Salmonella and are added in such a way that the respective bacterial cell concentrations of Escherichia coli and Salmonella in the liquid phase of the reaction unit 32 are about 1×106/mL and about 5×106/mL. The solution temperature of the reaction unit 32 is adjusted in such a way as to be 10-20 deg.C. The unit 35 feeds a control signal based on a judged result whether the hazardous material is present or not into a sewage arrangement control unit 36 to prevent the outflow of the hazardous material outside the system.