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Assessing removal efficiency of dissolved organic matter in wastewater treatment using fluorescence excitation emission matrices with parallel factor analysis and second derivative synchronous fluorescence.

Abstract：

:To assess removal efficiency of dissolved organic matter (DOM) in the wastewater treatment plant (WWTP), fluorescence excitation emission matrices (EEM) with parallel factor analysis (PARAFAC) and second derivative synchronous fluorescence (SDSF) were used for the characterization of DOM in wastewater. In A(2)/O process, tryptophan-like and tyrosine-like materials were removed to the much greater extent than that of fulvic-like. The protein-like material might be mostly decomposed by anaerobic and aerobic bacteria in anaerobic/anoxic and oxic zones. C1, C2, I276, I286, AP1 and AP2 were much better in tracing variations of tryptophan-like and tyrosine-like materials than C3, I329 and AF1 in tracing fulvic-like. The number of sampling sites should be reduced, as concentration variations of DOM components were subtle among sampling sites in the oxic zone and secondary sedimentation tank. SDSF may be a useful tool as PARAFAC to monitor removal efficiency of DOM fractions from wastewater in the WWTP.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Yu H,Song Y,Tu X,Du E,Liu R,Peng J

doi

10.1016/j.biortech.2013.07.025

subject

Has Abstract

pub_date

2013-09-01 00:00:00

pages

595-601

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(13)01083-3

journal_volume

144

pub_type

杂志文章

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