Characterization of organic compounds from biosolids of Buenos Aires city

The use of biosolids as a source of organic matter improves the physical and chemical properties of agricultural soils, resulting in an increase in crop yields. In previous studies, between 29-45% of sludge-borne carbon was recalcitrant a year after land application of biosolids from Buenos Aires Ci...

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Autores principales:	Torri,S.I, Alberti,C
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2012
Materias:	biosolids organic compounds ultrasound-assisted extraction sterols fatty acids
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000100012
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spelling	oai:scielo:S0718-951620120001000122018-11-05Characterization of organic compounds from biosolids of Buenos Aires cityTorri,S.IAlberti,C biosolids organic compounds ultrasound-assisted extraction sterols fatty acids The use of biosolids as a source of organic matter improves the physical and chemical properties of agricultural soils, resulting in an increase in crop yields. In previous studies, between 29-45% of sludge-borne carbon was recalcitrant a year after land application of biosolids from Buenos Aires City. Although high concentrations of some persistent organic pollutants have been worldwide reported to be present in this waste, this study has not been addressed in Argentina until now. Therefore, our aim was to characterize the organic compounds in Buenos Aires City's biosolids. Different extracting solvents were evaluated for ultrasound-assisted extraction (UAE). Results indicated that the combination of hexane: acetone (3:2, v/v) showed the highest extractability, allowing the identification of a wide range of organic compounds, without a clean-up or a pre-concentration step. The organic compounds mainly consisted of fatty acids, n-alkanes and steroids, with concentrations of persistent organic pollutants below detection limits. We conclude that the recalcitrant organic fraction reported in previous research is mainly due to the presence of stable sterols.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.12 n.1 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000100012en10.4067/S0718-95162012000100012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biosolids organic compounds ultrasound-assisted extraction sterols fatty acids
spellingShingle	biosolids organic compounds ultrasound-assisted extraction sterols fatty acids Torri,S.I Alberti,C Characterization of organic compounds from biosolids of Buenos Aires city
description	The use of biosolids as a source of organic matter improves the physical and chemical properties of agricultural soils, resulting in an increase in crop yields. In previous studies, between 29-45% of sludge-borne carbon was recalcitrant a year after land application of biosolids from Buenos Aires City. Although high concentrations of some persistent organic pollutants have been worldwide reported to be present in this waste, this study has not been addressed in Argentina until now. Therefore, our aim was to characterize the organic compounds in Buenos Aires City's biosolids. Different extracting solvents were evaluated for ultrasound-assisted extraction (UAE). Results indicated that the combination of hexane: acetone (3:2, v/v) showed the highest extractability, allowing the identification of a wide range of organic compounds, without a clean-up or a pre-concentration step. The organic compounds mainly consisted of fatty acids, n-alkanes and steroids, with concentrations of persistent organic pollutants below detection limits. We conclude that the recalcitrant organic fraction reported in previous research is mainly due to the presence of stable sterols.
author	Torri,S.I Alberti,C
author_facet	Torri,S.I Alberti,C
author_sort	Torri,S.I
title	Characterization of organic compounds from biosolids of Buenos Aires city
title_short	Characterization of organic compounds from biosolids of Buenos Aires city
title_full	Characterization of organic compounds from biosolids of Buenos Aires city
title_fullStr	Characterization of organic compounds from biosolids of Buenos Aires city
title_full_unstemmed	Characterization of organic compounds from biosolids of Buenos Aires city
title_sort	characterization of organic compounds from biosolids of buenos aires city
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000100012
work_keys_str_mv	AT torrisi characterizationoforganiccompoundsfrombiosolidsofbuenosairescity AT albertic characterizationoforganiccompoundsfrombiosolidsofbuenosairescity
_version_	1714206425894354944

Characterization of organic compounds from biosolids of Buenos Aires city

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