FLUORESCENCE ANALYSIS FOR A RIVER WATER POLLUTION AND WATER TREATMENT PROCESS SELECTION
Keywords:
3D-excitation emission matrix (3D-EEM), fluorescence, protein-like, humic-like, water treatment process.Abstract
Using a 3D-EEM, a river water and treated water samples from four cities were detected and analyzed. Fluorescence peaks appeared at excitation wavelength/emission wavelength = 290/320nm and excitation wavelength/emission wavelength = 340/425 nm, which reflects the existence of protein-like and humic-like matters, respectively. The quality of water from river was extremely influenced by human activity. Pollution of downstream was more serious than upstream. Fluorescent organic matters can be hardly removed by the traditional water treatment processes (coagulation, sedimentation and filtration). The advanced treatment technologies (ozonation and biological activated carbon filtration) are more effective. The results indicate that it is feasible to detect water quality rapidly and select water process by fluorescence technology.
