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Non‐targeted analyses of organic compounds in urban wastewater
Author(s) -
Alves Filho Elenilson G.,
Sartori Luci,
Silva Lorena M. A.,
Silva Bianca F.,
Fadini Pedro S.,
Soong Ronald,
Simpson Andre,
Ferreira Antonio G.
Publication year - 2015
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.4169
Subject(s) - wastewater , effluent , sewage treatment , sewage , chemistry , pollution , environmental chemistry , pollutant , activated sludge , environmental science , environmental engineering , organic chemistry , ecology , biology
A large number of organic pollutants that cause damage to the ecosystem and threaten human health are transported to wastewater treatment plants (WWTPs). The problems regarding water pollution in Latin America have been well documented, and there is no evidence of substantive efforts to change the situation. In the present work, two methods to study wastewater samples are employed: non‐targeted 1D ( 13 C and 1 H) and 2D NMR spectroscopic analysis to characterize the largest possible number of compounds from urban wastewater and analysis by HPLC‐(UV/MS)‐SPE‐ASS‐NMR to detect non‐specific recalcitrant organic compounds in treated wastewater without the use of common standards. The set of data is composed of several compounds with the concentration ranging considerably with treatment and seasonality. An anomalous discharge, the influence of stormwater on the wastewater composition and the presence of recalcitrant compounds (linear alkylbenzene sulfonate surfactant homologs) in the effluent were further identified. The seasonal variations and abnormality in the composition of organic compounds in sewage indicated that the procedure that was employed can be useful in the identification of the pollution source and to enhance the effectiveness of WWTPs in designing preventive action to protect the equipment and preserve the environment. Copyright © 2014 John Wiley & Sons, Ltd.