Characterization of Treated Water using Solid-Phase Extraction Technique and Spectrophotometry

摘要

Dissolved organic matter (DOM) in treated water was fractionatedrnusing solid phase extraction (SPE) into six fractions based on polarityrnand charge; namely, hydrophobic neutrals (HoN), hydrophobic basesrn(HoB), hydrophobic acids (HoA), hydrophilic bases (HiB), hydrophilicrnacids (HiA) and hydrophilic neutrals (HiN). HiN fraction was observedrnto be the highest fraction, accounting for 35% and HoA was found to bernthe second most abundant fraction in treating water, accounting forrn22%. The individual region in fluorescence excitation-emission matrixrn(F-EEM) result demonstrated that the treated water containedrnpredominantly, humic acid-like material, fulvic acid-like compoundsrnand soluble microbial products (SMPs).