
MIYATA Jun NAKAHARA Keisuke
JFE Engineering has been developing monitoring technology of the organic pollution load of wastewater as one of operation management technologies. During the development of noncontact on-site monitoring equipment, fluorescence of 340 nm wavelength was detected corresponding to the amount of soluble organic matters when the ultraviolet rays of 270–280 nm wavelength were irradiated at wastewater. A prototype was developed utilizing this characteristic and its actual plant test was performed by demonstrating potential applications.