APPLICATION OF FLUORESCENCE EXCITATION-EMISSION MATRICES AND PARAFAC ANALYSIS FOR INDICATING THE ORGANIC MATTER REMOVAL FROM MICRO-POLLUTED RAW WATER IN WATER TREATMENT PLANT

作者：Du Erdeng; Cao Pengrui; Sun Yue; Gao Naiyun^*; Wang Liping

来源：Fresenius Environmental Bulletin, 2012, 21(12B): 4030-4039.

• organic matter
• water treatment plant
• fluorescence excitation-emission matrices (EEMs)
• parallel factor analysis (PARAFAC)

Fluorescence excitation and emission matrices (BEMs) and parallel factor analysis (PARAFAC) were used to explore the organic matter removal from micro-polluted raw water in Zhongqiao water treatment plant. Based on PARAFAC analysis, four fluorescent components were extracted, including tyrosine-like, tryptophan-like, UV humic-like and visible humic-like substances. The water samples were dominated by protein-like substances, including tryptophan-like and tyrosine-like substances. The fluorescent components have the spectral features similar to those previously identified from EEMs of diverse aquatic environmental samples. The changes of maximum fluorescence intensities (F-max) illustrated that the fluorescent components could be effectively removed during the water treatment process. Ozonation and BAC filtration played an important role in the removal of organic components, with the reduction of F-max by 76.4% for tyrosine-like, 74.2% for tryptophan-like, 60.1% for UV humic-like, and 46.7% for visible humic-like. Protein-like substances were more readily eliminated than humic-like substances during BAC (biological activated carbon) filtration. PARAFAC analysis and F-max could be regarded as an effective tool and indicator for water quality analysis and water treatment plant evaluation.

• 出版日期2012
• 单位同济大学