Comparison between Farmer Household Tourism Wastewater and Municipal Wastewater Based on 3DEEM Fluorescence Spectroscopy

Abstract

Three-dimensional fluorescence spectrometry is a rapid analyzing method and is widely used in dissolved organic matter (DOM) characterizing and fingerprinting. In this present work, three-dimensional emission and excitation matrix (3DEEM) fluorescence spectrum was applied to characterize the fluorescence properties of dissolved organic matter in farmer household tourism wastewater and municipal wastewater. The results show that DOM fluorescence properties from various farmer household tourisms are characterized by protein-like, and high-excitation wavelength tryptophan-like peak is the strongest among all protein-like fluorescence peaks. Municipal wastewater also has same typical fluorescence peaks, while their fluorescence intensities are very relatively. Many protein-like fluorescence intensities of weir water are still close to it of municipal wastewater, though the wastewater is diluted and purified by the receiving water body. The polluting of wastewater from farmer household tourism to receiving water body shouldn¡¯t be ignored.